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High-End Pressure Controller
CPC8000
Operating Instructions
High-End Pressure Controller CPC8000 PN 0018508001AH • 01/2017
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High-End Pressure Controller
CPC8000
This Warning symbol indicates that danger of injury for persons and the
environment and/or considerable material damage (mortal danger, danger of
injury) will occur if the respective safety precautions are not taken.
This Caution symbol indicates danger for the system and material if the
respective safety precautions are not taken.
This Notice symbol does not indicate safety notices but information for a
better understanding of the facts
2 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
Table of Contents
1. General Information .............................................................. 6
1.1 Warranty ...................................................................6
1.2 Important Notice .............................................................6
1.3 FCC Radio Frequency Emission Notice ...........................................6
1.4 Trademarks and Copyrights (C) ..................................................7
1.5 Software License Agreement ...................................................7
1.6 Mensor Service Plus ..........................................................7
1.6.1 After the Warranty ........................................................7
1.6.2 Calibration Services ......................................................8
1.6.3 Accreditations ...........................................................8
1.7 Packaging for Shipment .......................................................8
2. Safety Notices ................................................................... 9
2.1 User Responsibilities ..........................................................9
2.2 General Safety Notices ........................................................9
2.3 Warnings and Caution Notices .................................................10
3. Product Description ............................................................. 11
3.1 General Description ..........................................................11
3.1.1 IntelliScale Transducer Choices ............................................11
3.2 Front Panel ................................................................12
3.2.1 Power Switch ..........................................................12
3.2.2 USB Port ..............................................................12
3.2.3 Information Label .......................................................12
3.2.4 Screen ...............................................................12
3.2.4.1 Main Screen Features ..................................................12
3.2.4.2 Screen Navigation .....................................................13
3.3 Main Features ..............................................................14
4. Specifications .................................................................. 15
4.1 Measure Specifications .......................................................15
4.2 Control Specifications ........................................................16
4.3 General Specifications .......................................................16
4.4 Transducer Removal/Replacement ..............................................18
4.5 Regulator Ranges ...........................................................19
4.6 Transducer Choices ..........................................................20
4.6.1 Transducer Type / Range / Mode / Accuracy ..................................21
4.7 IntelliScale ................................................................22
4.7.1 Optional IntelliScale .....................................................22
5. Installation ..................................................................... 23
5.1 Initial Installation ............................................................23
5.2 Unpacking the system ........................................................23
5.3 Dimensions ................................................................24
5.4 Turning on the CPC8000 ......................................................25
5.5 Pressure Connections ........................................................25
5.6 Pneumatic Connections and Pressure Fittings .....................................27
5.7 Electrical & Communication Connections .........................................28
5.7.1 Notices Regarding the Electrical Connections .................................29
5.7.1.1 Power Supply ........................................................29
5.7.1.2 Interfaces ............................................................29
5.7.1.3 Ethernet Interface .....................................................29
5.7.1.4 USB Host Interface ....................................................29
5.7.1.5 USB Device Interface ..................................................29
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CPC8000
5.7.1.6 RS-232 Interface ......................................................29
5.7.1.7 IEEE-488 Interface .....................................................29
5.7.1.8 Input/Output Port .....................................................29
6. Local Operation ................................................................. 30
6.1 General ...................................................................30
6.1.1 Buttons, Keys, Switches, Tabs, and other terms ...............................31
6.1.2 Map of the Main Screen Features ..........................................31
6.2 Main Screen Features ........................................................32
6.2.1 Autorange / Range Hold ..................................................32
6.2.2 Pressure Reading .......................................................33
6.2.3 Setpoint Button ........................................................33
6.2.4 Setpoint Value ..........................................................33
6.2.5 Setup ................................................................34
6.2.6 Setpoint Entry Methods ..................................................34
6.2.6.1 Number Key Pad .....................................................35
6.2.6.2 Number Pad / Step ....................................................35
6.2.6.3 Digital Step ..........................................................36
6.2.6.4 Program Data Entry ....................................................37
6.2.7 Favorites ..............................................................38
6.2.8 Status Bar .............................................................38
6.2.9 Secondary and Tertiary Display ............................................39
6.2.10 Limits ...............................................................40
6.2.11 Bar Graph ............................................................40
6.2.12 Pressure Units ........................................................41
6.2.13 Pressure Type ......................................................... 41
6.2.14 Operating Modes ......................................................42
6.2.14.1 Measure Mode .......................................................43
6.2.14.2 Control Mode ........................................................45
6.2.14.3 Vent Mode ..........................................................47
6.2.14.4 State of the Isolation Valves when the CPC8000 is off ........................48
7. Setup ......................................................................... 49
7.1 General Tab ...............................................................50
7.1.1 Language .............................................................50
7.1.2 Secondary and Tertiary Display ............................................50
7.1.3 Brightness .............................................................51
7.1.4 Volume ...............................................................51
7.1.5 Barometer (Units) .......................................................52
7.1.6 Load (Configuration) ........................................................ 52
7.1.7 Save (Configuration) .....................................................53
7.2 Sensor Tab .................................................................54
7.2.1 Sensor Filter ...........................................................54
7.2.2 Resolution (Display Digits) ................................................55
7.2.3 Units .................................................................55
7.2.4 Rate Units .............................................................56
7.2.5 User Units .............................................................56
7.3 Control Tab ................................................................57
7.3.1 Max and Minimum Limits .................................................57
7.3.2 Stable Limits ...........................................................58
7.3.3 Rate Setpoint ..........................................................59
7.3.4 Vent Rate .............................................................59
7.3.5 Vent Limit .............................................................59
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CPC8000
7.4 Remote Tab ................................................................61
7.4.1 Remote Command Set Setup .............................................61
7.4.2 IEEE-488 Address .......................................................62
7.4.3 Ethernet Settings .......................................................62
7.4.4 Serial Settings ..........................................................63
7.4.5 USB Device Setting .....................................................63
7.5 Applications Tab ............................................................64
7.5.1 Passwords ............................................................64
7.5.2 Calibration of Internal Transducers ..........................................65
7.5.2.1 Calibration Environment ................................................66
7.5.2.2 Calibration Pressure Standards ...........................................66
7.5.2.3 Calibration Media .....................................................66
7.5.2.4 Calibration Setup ......................................................66
7.5.2.5 Calibration Adjustment Procedure ........................................68
7.5.2.5.1 1-Point Calibration ...................................................69
7.5.2.5.2 2-Point Calibration ...................................................70
7.5.2.5.3 Linearize ...........................................................71
7.5.2.5.4 Head Correction (password protected) ...................................73
7.5.2.5.5 Remote Zero Calibration ..............................................73
7.5.2.5.6 Programs ..........................................................74
7.5.2.5.7 Favorites ...........................................................76
7.5.2.5.8 Digital I/O ..........................................................76
7.5.2.5.9 Troubleshoot .......................................................78
7.5.2.5.10 Adaptation ........................................................78
7.5.2.5.11 Tune .............................................................80
7.5.2.5.12 Admin ............................................................82
7.5.2.5.12.1 Change Password .................................................82
7.5.2.5.13 Software Upgrade ..................................................83
7.6 Info Tab ...................................................................84
8. Remote Operation ............................................................... 85
8.1 Software/Functions ..........................................................85
8.2 Remote Command Set .......................................................85
8.3 SCPI WIKA Command Set ....................................................95
8.4 SCPI Error Messages and Error Codes ..........................................99
8.5 Command Emulation ........................................................100
8.5.1 PCS 400 Emulated Commands ...........................................100
9. Options ....................................................................... 102
9.1 Transport Case ............................................................102
9.2 Rack Mount Kit ............................................................102
9.3 Barometric Reference Transducer ..............................................102
9.4 Model 75 Pressure Booster System ............................................103
10. Maintenance ................................................................. 104
10.1 Beyond the Warranty .......................................................104
10.2 Troubleshooting ...........................................................104
10.2.1 Pressure Transducer Location ..........................................106
10.2.2 Transducer Removal / Replacement ......................................106
11. Appendix .................................................................... 108
11.1 Measurement Units ........................................................108
11.2 Conversion Factors, bar ....................................................109
11.3 Conversion Factors, PSI ....................................................110
11.4 Conversion Factors, millitorr .................................................111
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High-End Pressure Controller
CPC8000
1. General Information
1.1 Warranty
All products manufactured by Mensor are warranted to be free of defects in workmanship and
materials for a period of two years from the date of shipment. No other express warranty is given, and
no armation of Seller, by words or actions, shall constitute a warranty. SELLER DISCLAIMS ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSES
WHATSOEVER. If any defect in workmanship or material should develop under conditions of normal
use and service within the warranty period, repairs will be made at no charge to the original purchaser,
upon delivery of the product(s) to the factory, shipping charges prepaid. If inspection by Mensor or
its authorized representative reveals that the product was damaged by accident, alteration, misuse,
abuse, faulty installation or other causes beyond the control of Mensor, this warranty does not apply.
The judgment of Mensor will be nal as to all matters concerning condition of the product, the cause and
nature of a defect, and the necessity or manner of repair. Service, repairs or disassembly of the product
in any manner, performed without specic factory permission, voids this warranty.
MENSOR MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MANUAL, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. Mensor shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of this material.
1.2 Important Notice
The product specications and other information contained in this manual are subject to
change without notice.
Any reproduction of this manual or parts thereof by any means is prohibited.
1.3 FCC Radio Frequency Emission Notice
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio communications. Operation of
this equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his or her own expense.
Use shielded cables to connect external devices to this instrument to minimize RF radiation.
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CPC8000
1.4 Trademarks and Copyrights (C)
WIKA is a registered trademark of WIKA Alexander Wiegand SE & Co. KG.
Mensor is a registered trademark of Mensor. ©2012, Mensor. All rights reserved.
All other brand and product names are trademarks or registered trademarks of their respective companies.
1.5 Software License Agreement
This product contains intellectual property, i.e., software programs, that are licensed for use by the end
user/customer (hereinafter “end user”).
This is not a sale of such intellectual property. The end user shall not copy, disassemble, reverse
engineer or de-compile the software program.
The software programs are provided to the end user “as is” without warranty of any kind,
either express or implied, including, but not limited to, warranties of merchantability and
tness for a particular purpose. The entire risk of the quality and performance of the
software program is with the end user.
Mensor and its suppliers shall not be held to any liability for any damages suered or incurred by the
end user (including, but not limited to, general, special, consequential or incidental damages including
damages for loss of business prots, business interruption, loss of business information and the like),
arising from or in connection with the delivery, use or performance of the software program.
1.6 Mensor Service Plus
Mensor has made a concerted eort to provide complete and current information for the proper use of
the equipment. If there are questions regarding this manual, proper use of the equipment, or if you have
problems using your CPC8000 and you don’t nd the answer in this manual, contact either Mensor or
WIKA for personal assistance. We are ready to help.
Mensor WIKA Alexander Wiegand SE & Co. KG
201 Barnes Drive Alexander-Wiegand-Straße 30
San Marcos, Tx 78666 63911 Klingenberg / Germany
tel: 1-512-396-4200 tel: +49 9372/132-5015
1-800-984-4200 (USA only)
fax: 1-512-396-1820 fax: +49 9372/132-8767
email: sales@mensor.com email: CTSales@wika.de
tech.support@mensor.com CTService@wika.de
website: www.mensor.com website: www.wika.de
1.6.1 After the Warranty
Mensor’s concern with the performance of this instrument is not limited to the warranty period. We
provide complete repair, calibration and certication services after the warranty for a nominal fee as
explained in Section 10, Maintenance.
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High-End Pressure Controller
CPC8000
1.6.2 Calibration Services
In addition to servicing our own products, Mensor provides complete pressure calibration services up
to 20,000 psi for many pressure instruments. This service includes a Certicate of Compliance and
Calibration and a record of traceability to the pressure standards of the United States National Institute of
Standards and Technology (NIST).
1.6.3 Accreditations
Mensor is registered to ISO 9001:2008. The calibration program at Mensor is accredited by A2LA, as
complying with both the ISO/IEC 17025:2005 and the ANSI/NCSL Z540-1-1994 standards.
1.7 Packaging for Shipment
If the product must be shipped to a dierent location or returned for any reason through a common carrier
it must be packaged properly to minimize the risk of damage.
The recommended method of packing is to place the instrument in a container, surrounded on all sides
with at least four inches of shock attenuation material such as styrofoam peanuts.
If the instrument will be subjected to frequent transport then the optional Transport Case shown in
Section 9, Options, might be an economical solution. This wheeled case is very rugged and provides
complete and long term protection against rough handling.
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CPC8000
2. Safety Notices
2.1 User Responsibilities
To ensure safety, the operator must make sure that the following conditions are met:
■ The system is used properly, no dangerous media are used and that all technical specications are
observed.
■ The system is in perfect operating condition.
■ The operation manual is legible and accessible to the user at the system’s location.
■ The system is operated, serviced and repaired only by authorized and qualied personnel.
■ The user receives instruction on industrial safety and environmental protection, and is knowledgeable
of all operating instructions and safety notices relevant to the current procedure.
2.2 General Safety Notices
The system should be operated only by trained personnel who are familiar with this manual
and the operation of the instrument.
A condition for trouble-free and safe operation of this system is proper transport,
proper storage, installation, assembly and proper use as well as careful operation
and maintenance.
Any operation not described in the following instructions should be prohibited. The
system must be handled with care required for an electronic precision instrument
(protect from humidity, impacts, strong magnetic elds, static electricity and
extreme temperatures). Do not insert any objects into the instrument.
The system is powered via the power cable with a voltage that can cause physical
injury. Even after disconnecting the system from the power supply, dangerous
voltages can temporarily occur due to capacitance.
Repairs must be performed only by authorized service personnel.
Additional safety notices are found throughout this manual.
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CPC8000
2.3 Warnings and Caution Notices
WARNING: HIGH PRESSURE! High pressure gases are potentially hazardous.
Energy stored in these gases can be released suddenly and with extreme force.
High pressure systems should be assembled and operated only by personnel who
have been trained in proper safety practices.
WARNING: POSSIBLE INJURY! The tubing, valves and other apparatus attached to
the instrument must be adequate for the maximum pressure which will be applied,
otherwise physical injury to the operator or bystanders is possible.
CAUTION: Use the proper pressure medium. Use only clean, dry, noncorrosive
gases. This instrument is not designed for oxygen use.
WARNING: HIGH SOUND LEVELS! Pressures from 1000 psi and up can generate
sound levels above 80 dbA for brief periods when they are exhausted directly to
atmosphere. A muer is provided for connection to the vent port. It is the
operator’s responsibility to measure sound levels at whatever point 1 meter from
the equipment that has the highest sound pressure level. At levels above 80 dbA,
use of protective ear pieces can reduce these higher levels to a safe level.
WARNING: NOT EXPLOSION PROOF! Installation of this instrument in an area
requiring devices rated as intrinsically safe is not recommended.
WARNING: Detachable main power supply cord with inadequate ratings should not
be used. See Section 4.0, Specications, for power supply ratings.
CAUTION: ESD PROTECTION REQUIRED. The proper use of grounded work
surfaces and personal wrist straps are required when coming into contact with
exposed circuits (printed circuit boards) to prevent static discharge damage to
sensitive electronic components.
Additional Warning and Caution notes are included throughout this manual.
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CPC8000
3. Product Description
3.1 General Description
The CPC8000 High-End Pressure Controller is our highest performance pressure controller and features
the following:
• 19” rack mount compatibility
• Designed for serviceability and reliability
• Widescreen display with glass capacitive touchscreen
• Front panel door gives access to instrument interior
• Up to three removable transducers 0.01% IS-50 (IntelliScale-50)
• Pressure ranges from 10.36 pressure regulator, up to 10:1 turndown
• Adaptive control algorithm with rate control capability
• Ethernet, RS-232, USB, and IEEE-488 communications
• Remote compatibility with PCS 400, CPC 6000, CPC 3000, old CPC8000 (SCPI)
• Emulation of competitive instrument command sets
• Local program capability
• Multiple language support
• On board diagnostic logging
• Barometric reference option
• 0.008% IS-33 (IntelliScale-33) transducer option
• Complies with latest CE and 61010 regulations
The CPC8000 is designed to automate the testing and calibration of all types of pressure devices and
instruments. Up to three removable / interchangeable pressure transducers are available in full scale
(FS) ranges from 0.36 to 6,000 psig, 7.5 to 6015 psia. Each transducer module is congured with its own
calibration parameters on board and have 0.01% IS-50 or optional 0.008% IS-33 accuracy.
The three transducers, in combination with the internal control valve regulator, provide a dynamic output.
The operator can choose to control pressure either using a single, selected transducer or auto-range
control across all three transducers. The ratio between the highest FS range and the lowest FS range
within the CPC8000 cannot exceed 10:1. The three ranges can be chosen to optimise accuracy levels
across the full pressure span of the instrument.
In addition to the capacity for three active ranges, a fourth, barometric transducer is available as an
option. With this option installed a CPC8000, with absolute or gauge pressure transducers, can emulate
pressure of the opposite type.
3.1.1 IntelliScale Transducer Choices
The CPC8000 can be supplied with standard 0.01% IS-50 Transducers or optional 0.008% IS-33 transducers to give a percent of reading accuracy down to 50% or 33% of full scale respectively. Refer to Sec-
tion 4, Specications, for a full description of the accuracy specication and Section 4.7, IntelliScale.
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3.2 Front Panel
The front of the CPC8000 has a smooth, uncluttered appearance (see gure 3.2). Its main feature is the
large color display plus an identication label in the lower right corner of the display panel. The display
panel is hinged for easy access to remove or replace the transducer modules inside. The instructions for
accessing the transducers are provided in Section 10.2.2 Transducer removal/replacement. Immediately
to the right of the display panel is a USB port and a power switch.
Hinged Display Panel
Label
USB port
Power switch
Figure 3.2 - Front View
3.2.1 Power Switch
The power switch is a two-state device with an action similar to that of a ball point pen. Push the button
with enough force to latch it in to turn the unit ON. Push it again to release it to turn the system OFF.
If power to the instrument is interrupted while ON it will shut down until the power is
restored, then immediately resume operation.
3.2.2 USB Port
The front panel USB port is the same as the Host USB port on the rear panel. Both are intended for future
expansions or software upgrades
3.2.3 Information Label
The front panel label identies the instrument name, installed transducer ranges in the pressure units
specied by the customer, and the serial number.
3.2.4 Screen
The large (9 inch diagonal) LCD color screen has a glass capacitive touch screen for navigation within
the intuitive operator interface. At power up the main screen is presented. (See gure 3.2.4.1)
3.2.4.1 Main Screen Features
On power up, the main screen will show a numeric data entry key pad on the right 1/3 of the display and
pressure range, control and operating parameters on the left 2/3.
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CPC8000
The data entry key pad can be switched between 4 dierent methods for data entry. See Section 6,
Local Operation, for more details. The data entry portion of the main screen is used primarily to input and
adjust control set points and change main screen parameters.
The left 2/3 of the main screen (see gure 3.2.4.1) contains the reading of the internal pressure transducer, current conguration settings, range limits and labels (see Section 6, Local Operation, for more
details). Pressure monitoring calibration and testing functions are performed through Interaction with this
screen; the majority of an operator’s local operation time will be spent working with this screen. A map of
the individual features on the various displays is included in Section 6.1.2.
Main screen
Test / Calibration Parameters
Figure 3.2.4.1 - Main Screen Features
3.2.4.2 Screen Navigation
Individual screens are accessed by a series of touches on tabs, buttons or icons, which open screens
within the hierarchy of the instrument. Nomenclature that designated a screen and how to navigate to
it will be given in this manual in the following structure: “Icon name” [Icon Graphic] / [Tab] / [Button
Name].
Data entry
For example the screen used to set the resolution of the instrument transducer would be designated by
the navigational screen hierarchy, starting from the main screen, as follows: Setup [ ] / [Sensor]
/ [Resolution]. This convention is similar to a computer folder system and will be used to describe a
screen and, inherently, how to navigate to it.
All of the screens are set up into two display areas. The larger area (left 2/3 of the screen) shows live
information about the current conguration, the progress of the test being performed and gives an indication of the output of the device. The smaller area (Data Entry) on the right side, has the number key pad,
variable sliders or discrete choice buttons (radio buttons) that all act to input alpha numeric information or
mode changes relating to the test or calibration information being shown on the left.
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Buttons on the screen are shown with a gradient background. When inactive the buttons are shown
with the gradient dark on the bottom and light on the top; when selected the button changes color and is
light on the bottom and dark on the top. Buttons are labeled in an intuitive fashion and when selected its
function is obvious.
The setup screens are accessed by pressing the double gear icon [ ] and follows the same format
as the main screen with the right hand side used for data entry and the left hand side used for display.
These setup screens are used for a variety of instrument settings, including, display, transducer, control,
and remote interface settings. This area also contains the application used to calibrate the internal transducers plus various administrative, information and conguration settings. Detailed information about all
setup screens can be found in Section 6, Local Operation.
Touch the left pointing arrow [ ◀ ] in the bottom left corner of any setup screen to return to the main
screen.
Full operational descriptions of all of the screens, symbols, labels and switches are provided in Section
6, Local Operation.
3.3 Main Features
■ Up to three, highly stable removable / interchangeable pressure transducers (see Section 10.2.2,
Transducer Removal/Replacement). Each transducer is a totally self-contained module including its
unique calibration data.
■ IntelliScale calibrations for maximum accuracy specifications.
■ An optional high performance Barometer module can be used for accurate emulation of gauge
pressure with absolute pressure instruments, or used for absolute pressure emulation with gauge
pressure instruments.
■ A large 9- inch diagonal color LCD with glass capacitive touch screen for intuitive operator interface.
■ A very quiet precision pressure regulator with a fast response time.
■ Multiple languages; simply touch one of the national flags on the display to instantly change the
on-screen text language, and the corresponding number and date formats. For more detailed information see Section 7.1.1, Language.
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CPC8000
4. Specications
Accuracy specications presented herein are obtained by comparison with primary standards traceable to
the National Institute of Standards and Technology NIST). A calibration data report has been provided with
your new CPC8000 instrument, traceable to NIST. The calibration program at Mensor is accredited to both
ISO/IEC 17025:2005 and Z540-1-1994 by A2LA. Mensor, LP is registered to ISO 9001:2008.
Mensor reserves the right to change these specications without notice.
4.1 Measure Specications
Reference pressure transducer model CPR8000/ CPR8800
Accuracy
(1)
0.01% FS
(3)
, 0.01% IS-50
(2)
-or-
(4)
(5)
.
(6)
Pressure ranges
Optional 0.008% IS-33
Optional 0.008% IS-50
0 ... 7.5 psia to 0 ... 6015 psia
0 ... 5 psig to 0 ... 6000 psig
-15 ... 145 psig to -15 ... 6000 psig
See Table 4.6.1 for available Transducer Type, Range, Mode, Accuracy and Calibration interval
Maximum ratio between highest and lowest range is 10:1
Precision
(7)
0.004% FS
Measurement units psi, inHg@0C, cmHg@0C, mmHg@0C, inH2O@4C, 20C, bar, mbar, cmH2O@4C and 20C, hPa, kPa,
Pa, MPa, kg/cm sq, and 2 user-dened units. All above in rate (per second, per minute and per hour).
Resolution Operator selectable from 4 to 7 digits depending on the range, units and selected transducer
Calibration adjustments Zero adder and Span multiplier or up to 11 point linearization for each transducer
Calibration interval
365 days
(8)
Calibration data storage The calibration data is stored on the transducer.
Measurement lters O, low, normal (default), high
Optional barometric reference
Function
The barometric reference can be used to switch pressure types
(9)
, absolute <=> gauge. With gauge
pressure transducers, the measuring range of the transducers must begin with -1 bar (-15 psi) in
order to carry out a complete absolute pressure emulation
Measuring range 8 ... 17 psia
Accuracy
Precision
(1) It is dened by the total measurement uncertainty, with the coverage factor (k = 2) and includes the intrinsic performance of the instrument, the measurement uncertainty of the reference instrument, long-term stability, inuence of ambient conditions, drift and temperature eects over the compensated range with recommended zero point adjustment every 30 days
(2) 0.01 % IS-50 accuracy: Between 0 ... 50 % of the full scale, the accuracy is 0.01% of half of the full scale value and between 50 ... 100 % of the full scale, the accuracy is 0.01 % of reading
(3) FS = full span
(4) 0.008 % IS-33 accuracy: Between 0 ... 33 % of the full scale, the accuracy is 0.008% of one third of the full scale value and between 33 ... 100 % of the full scale, the accuracy is 0.008 % of reading
(5) 0.008 % IS-50 accuracy: Between 0 ... 50 % of the full scale, the accuracy is 0.008% of half of the full scale value and between 50 ... 100 % of the full scale, the accuracy is 0.008 % of reading
(6) The minimum calibrated range of absolute transducer(s) is 600 mTorr.
(7) It is dened as the combined eects of linearity, repetability and hysteresis throughout the stated compensated temperature range.
(8) 365 days for 0.01% IS-50, 0.008% IS-33 and 0.008% FS accuracy. For 0.01% FS accuracy, 180 days for pressure ranges below 1 bar (15 psi) gauge or absolute, and -1 ...1 bar (-15 ... 14.5 psi)
bidirectional. 365 days for the remainder of the specied ranges
(9) For a pressure type emulation, we recommend a native absolute pressure transducer, since the zero point drift can be eliminated through a zero point adjustment.
(1)
(7)
.
0.01 % of reading
0.004% FS
.
.
.
.
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High-End Pressure Controller
CPC8000
4.2 Control Specications
External pressure
requirements
Control stability 0.002% FS of highest range transducer at the set point
Pressure range ratio Maximum ratio between highest and lowest range is 10:1
Minimum control pressure 0.05% FS of highest range transducer or .025 psi over exhaust pressure, whichever is greater
Pressure control rates 0.001% of range/sec to 10% of range/sec
Control time 60 seconds to stable ag for a 10% pressure change into 150cc volume. Larger volumes can
Supply consumption <2.5 scfh in steady-state control.
Overshoot <0.1% FS of highest range transducer
External volume 50 to 300 cc. (Consult factory for volumes exceeding 300 cc). Requires one complete pressure
4.3 General Specications
Source Requirements – 10% over range of highest pressure transducer
Exhaust Requirements – Vacuum source required for any control below atmosphere
lengthen this time. Controlling to pressures less than 0.5 psia will lengthen this time.
cycle after changing the external volume, or after a power cycle. See page 27, “Turning on the
CPC8000”.
Size See Section 5.3, Dimensions.
Weight ~49 lbs (~22.2 kg) with all internal options.
Mounting Standard: desk top case with bezel and handle.
Optional: 19” rackmount kit.
Power input requirements 100 – 120 VAC / 200 – 240 VAC, 50 – 60 Hz
Energy Consumption Max 130 VA
Pneumatic interfaces 7/16-20 female SAE threaded ports for Measure/Control, Exhaust, Vent, Reference,
and Supply. Hose barb for barometer. Other ttings per customer request.
Particle lters The instrument has 40-micron lters on all pressure ports through the manifold.
The barometer has no lters
Permissible pressure media Dry, clean air or nitrogen (ISO 8573-1:2010 class 5.5.4 or better)
Pneumatic overpressure
protection
Compensated temp. range 15 to 45 °C
Operating temp. range 0 to 50 °C
Storage temp. range 0 to 70 °C
Local user interfaces 9” Color LCD with glass capacitive touch screen
Remote user interface RS-232 (null modem cable not required), Ethernet, USB, and IEEE 488.2
Warm-up 15 minutes
Reading rate 32+ readings/second, unique readings/second is transducer dependent.
Transducer Response time < .33 seconds after a 0-FS step
Each transducer is protected with pneumatic relief valves set 10-25% over the maximum
transducer pressure.
Orientation eects (tilt) Negligible, can be removed with re-zeroing. (calibrate and operate in a horizontal position)
Shock / vibration 2 G’s Max
Pressure media capability Clean, dry, non-corrosive, non-combustible, non oxidizing gases. No oxygen.
Metals in contact with media 6000 series Aluminum, 316 SS, Brass
Non-metals in contact
with media
Teon, Urethane, Silicone, RTV, Silicone grease, PVC, Epoxy, Ceramics
16 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
Operating environment 0-95% RH, non-condensing
CE mark Conformity certicate. Complies with EN50081, EN50082, and EN61010-1.
Calibration certicate Includes calibration certicate(s). The Mensor calibration laboratory is accredited in accordance
with the recognized Internal Standard ISO/IEC 17025:2005 and also meets the requirements
of ANSI/NCSL Z540-1-1994. Accreditation is by the American Association for Laboratory
Accreditation (A2LA).
Warranty Two year warranty
Options 0.008% IS-33, IS-50 transducer option
Transport/travel case
Barometric reference transducer
Spare Primary, Secondary or Tertiary transducer
19” rackmount kit
WARNING! This is class A equipment for emissions and is intended for use in industrial
environments. In other environments, e.g. residential or commercial installations, it can
interfere with other equipment under certain conditions. In such circumstances the operator
is expected to take the appropriate measures.
Operating Instructions - CPC8000 17
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High-End Pressure Controller
CPC8000
4.4 Transducer Removal/Replacement
When replacing transducers the order of position MUST be maintained according to
the pressure limit of each transducer; starting with the highest pressure transducer
on the left (Primary Transducer), and the next lower pressure limit transducer next
(Secondary Transducer), and the low ranged transducer at the far right (Tertiary
Transducer). If the system will be operated with less than the full complement of
three pressure modules, any empty slots must begin at the far right where the
Tertiary Transducer is normally located.
The manifold seal is a metal plate used to seal the pneumatic openings on the manifold at
an unused transducer slot. If there is just a single pressure transducer installed then two
manifold seals are installed. All transducer slots must be sealed with either transducers or
seal plates for the instrument to function. Two manifold seal plates are shipped with each
unit for this purpose.
The D-sub connectors for unused slots can remain unplugged. For more information on transducer removal/replacement see Section 10.2.2 in the Maintenance section.
Up to three transducers can be present within the CPC8000. The full scale pressure of the highest
ranged transducer (the Primary transducer) must fall within the range of the installed regulator module
(see Table 4.5, Regulator Module version and range limits). This primary transducer occupies the leftmost
slot within the CPC8000 (see gure 4.4). The other two slots can be empty or occupied with lower ranged
transducers but their full scale range cannot exceed a ratio of 10:1 of the primary transducer. In other
words, the lowest full scale range in the CPC8000 cannot be less than one tenth of the range of the
primary transducer full scale range (see Section 4.6, Transducer Choices).
Primary transducer Secondary transducer Tertiary transducer
Figure 4.4 - Front cut-away view showing three transducers
18 Operating Instructions - CPC8000
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High-End Pressure Controller
Regulator Module Range
CPC8000
4.5 Regulator Ranges
The CPC8000 is supplied with one of ve dierent needle valve regulators (NVR) modules. Table 4.5
shows each regulator and its corresponding pressure range limits: LP (low pressure), MP (medium
pressure), SP (standard pressure), HP (high pressure) and EP (extended pressure).
Table 4.5 - Regulator Module Version and Range Limits
Regulator Module Primary Range Limits
LP-NVR ≤ 90 psi gauge or 105 psi absolute / 6 bar gauge or 7 bar absolute
MP-NVR ≤ 1000 psi gauge or 1015 psi absolute / 70 bar gauge or 71 bar absolute
> 90 psi gauge or 105 psi absolute / 6 bar gauge or 7 bar absolute
SP-NVR ≤ 2000 psi gauge or 2015 psi absolute / 135 bar gauge or 136 bar absolute
> 1000 psi gauge or 1015 psi absolute / 70 bar gauge or 71 bar absolute
HP-NVR ≤ 3000 psi gauge or 3015 psi absolute / 210 bar gauge or 211 bar absolute
> 2000 psi gauge or 2015 psi absolute / 135 bar gauge or 136 bar absolute
EP-NVR ≤ 6000 psi gauge or 6015 psi absolute / 400 bar gauge or 401 bar absolute
> 3000 psi gauge or 3015 psi absolute / 210 bar gauge or 211 bar absolute
6000 to 3000 psi
EP-NVR
6000
5000
4000
2000 to 3000 psi
3000
HP-NVR
1000 to 2000 psi
SP-NVR
2000
1000 to 90 psi
1000
MP-NVR
90 to 0 psi
LP-NVR
0
Figure 4.5 - Primary transducer limit for each regulator
The primary transducer (Transducer 1) full scale range must fall within one of the regulator range limits
shown in gure 4.5. The secondary and tertiary transducers may fall outside of these limits but must not
have a full scale value less than 1/10 of the primary transducer full scale range.
Operating Instructions - CPC8000 19
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High-End Pressure Controller
CPC8000
4.6 Transducer Choices
Transducer measuring modes can be gauge, absolute, or bi-directional. The CPC8000 will be equipped
with one, two or three transducers of the same mode. Transducer type will be “Standard” (accuracy of
0.01% FS, or 0.01% IS-50) or “Premium” (accuracy of 0.008% IS-33, or 0.008% IS-50). The transducers
must be all “Standard” transducers or all “Premium” transducers and not a mix of both types.
The three transducers, in combination with NVR Module, provide a wide dynamic range (10:1 FS) where
the operator can choose to control output pressure using a single transducer, or “autorange” control
across all three transducers. The three transducer ranges can be chosen to optimize accuracy levels.
Full scale transducer ranges up to 6000 psi are available plus an optional barometric transducer. The
accuracy specications, plus a proprietary needle valve regulator, provides accurate and stable control.
The number of unique readings/sec over the remote interface is dependent on the transducer type. The
transducer update rate of a standard transducer is 30ms, or 33 unique readings/sec. The transducer
update rate of a premium transducer is 100ms, or 10 unique readings/sec. This is a technical limitation
of the premium transducer required to meet performance specications. All remote protocols can query
faster than the transducer update rate.
An optional precision barometer can be used for emulation of gauge pressure with an absolute pressure
instrument, or used for absolute pressure emulation with a gauge pressure instrument. For full range
absolute emulation, the instrument gauge transducers should be ranged down to -15 psig.
Table 4.6 - Transducer Choices
Transducer 1
CPR8000 Standard Transducer 0.01% FS or 0.01% IS-50
CPR8800 Premium Transducer 0.008% IS-33 or 0.008% IS-50
Transducer 2
No second reference transducer
CPR8000 Standard Transducer 0.01% FS or 0.01% IS-50
CPR8800 Premium Transducer 0.008% IS-33 or 0.008% IS-50
Transducer 3
No third reference transducer
CPR8000 Standard Transducer 0.01% FS or 0.01% IS-50
CPR8800 Premium Transducer 0.008% IS-33 or 0.008% IS-50
20 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
4.6.1 Transducer Type / Range / Mode / Accuracy
Each transducer within the CPC8000 or additional transducers will conform to the limits shown in the following table.
Table 4.6.1 - Transducer Type / Range / Mode / Accuracy
Standard Transducer
(Model CPR8000) Ranges
0 ... 5 to 0 ... <14.5 psig Gauge 0.01% FS – 180 days
0 ... ≥14.5 to 0 ... 6000 psig Gauge 0.01% IS-50 – 365 days
0 ... 7.5 to 0 ... <14.5 psia Absolute 0.01% FS – 180 days
0 ... ≥14.5 to 0 ... 6015 psia Absolute 0.01% IS-50 – 365 days
Min span Max span
-5 ... 5 psi -15... +14.5 psi Bidirectional 0.01% FS – 180 days
-15 ... ≥14.5 psi -15 ... <145 psi Bidirectional 0.01% FS – 365 days
-15 ... ≥145 psi -15 ... + 6000 psi Bidirectional 0.01% IS-50 – 365 days
Premium Transducer
(Model CPR8800) Ranges
0 ... 12 to 0 ... 16.5 psia Absolute 0.008% IS-33 – 365 days
0 ... 18.4 to 0 ... 33 psia Absolute 0.008% IS-33 – 365 days
0 ... 36 to 0 ... 50 psia Absolute 0.008% IS-33 – 365 days
0 ... 80 to 0 ... 110 psia Absolute 0.008% IS-33 – 365 days
0 ... 160 to 0 ... 220 psia Absolute 0.008% IS-33 – 365 days
0 ... 240 to 0 ... 500 psia Absolute 0.008% IS-33 – 365 days
0 ... 700 to 0 ... 1100 psia Absolute 0.008% IS-50 – 365 days
0 ... 1400 to 0 ... 3300 psia Absolute 0.008% IS-50 – 365 days
0 ... 4200 to 0 ... 6015 psia Absolute 0.008% IS-50 – 365 days
Mode Accuracy
Mode Accuracy
Operating Instructions - CPC8000 21
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High-End Pressure Controller
CPC8000
4.7 IntelliScale
IntelliScale is a calibration technique that provides another degree of certainty to a pressure
measurement specication. Or said another way, IntelliScale is designed to further reduce the accuracy
specication. It does this by considering the full pressure range as two separate ranges; a specically
dened lower range, and the remaining upper range. It then denes the accuracy of the lower portion
as a percent of the full scale of that lower range, and the accuracy of the upper portion as a percent of
reading at any pressure point within that upper range.
In practice, the standard Mensor IntelliScale specication is 0.01% IS-50. This means that the full scale
lower half (50% of the total range) has an accuracy of 0.01% of that portion of the range, while the upper
half of the total range has an accuracy of 0.01% of the pressure reading. Thus, any pressure within the
lower half of the pressure range has a xed number for the accuracy (.01% of that half scale), while the
accuracy anywhere in the upper half of the full range is a sliding scale number; that is, a percent (0.01%)
of any reading.
For example, a device with a pressure range from 0 to 100 psi with an accuracy specication of IntelliScale 0.01% IS-50 will have an accuracy of 0.005 psi (0.01% x 50 psi FS) on any pressure from 0 psi to 50
psi, and an accuracy of 0.01% of reading (0.01% x R) for any pressure above 50 psi (see gure 4.7.1a).
4.7.1 Optional IntelliScale
An option available for some ranges is IntelliScale 0.008% IS-33, where the lower portion of the full scale
range is 33% of the total range, and the upper portion of the full scale range is 67% of the full range. The
result is an accuracy of 0.00264% (0.008% x 33% FS) of the total full scale pressure for the one third low
end range, and an accuracy of 0.008% of reading (0.008% x R) for any pressure in the upper two thirds
of the transducer range. See gure 4.7.1b.
Total Uncertainty
Total Uncertainty
0.01% of 50%
of FS pressure
0.01% of Pressure Reading
Total Uncertainty
0.008% of 33%
Total Uncertainty
0.008% of Pressure Reading
of FS pressure
20 40 60 80 100
50
%FS Pressure
0 20 40 60 80 100
33
%FS Pressure
Figure 4.7.1a - IntelliScale IS-50 Figure 4.7.1b - IntelliScale IS-33
22 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
5. Installation
WARNING: READ THESE INSTRUCTIONS BEFORE INSTALLATION!
The installation location must meet the following conditions (see also Section 4, Specications):
■ Ambient temperature: Compensated temperature range 15° to 45° C
■ Humidity: 0-95% relative humidity, non-condensing
■ Flat, horizontal location; secure fixed working surface (desk top model) or proper installation in a
sturdy 19” mounting rack or cabinet
■ Sufficient air circulation must be provided at the rear of the instrument to avoid accumulation of heat
Pressure Supply Requirements:
■ Stable supply pressure 10% higher than the full scale of the controller
■ Permissible media: dry, clean air or nitrogen
■ Vacuum: minimum 50 liters per minute (if required)
5.1 Initial Installation
The initial installation of the CPC8000 includes the following steps: Unpack the system, place it in a
suitable work place, connect it, switch it on and congure.
A Quick Start Guide has been placed inside the shipping box containing your instrument. This guide
provides a quick reference to the pneumatic and electrical connections and an introduction to the operator interface. It is intended for experienced operators. All safety precautions within this manual should be
understood and followed.
5.2 Unpacking the system
Your new instrument was subjected to many hours of functional testing before it left the factory. In addition
to testing, the unit was inspected for appearance prior to being packaged for shipment. Upon removal
from its carton please examine the instrument for shipping damage. Report any apparent damage to the
carrier immediately.
Apart from any additional components ordered, a shipment consists of:
■ CPC8000 High-End Pressure Controller
■ Power Cord
■ Operating Manual
■ Quick Start Guide
■ Any options ordered
■ Two manifold seal plates (either attached internally or sent externally with the CPC8000)
■ An envelope containing the Calibration Certificate
■ A 3/16 hex screwdriver
■ A microfiber cloth to clean the glass front panel
■ Muffler, if pressure ranges ≥ 1000 psi (70 bar)
Operating Instructions - CPC8000 23
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High-End Pressure Controller
19.5
8.6
1.5
16.2
CPC8000
5.3 Dimensions
Desk top:
19.5
8.6
1.5
16.2
Rack mount:
front view
19
16.9
7.0
front view side view
Adaptor Fitting:
1/4 in. Tube OD x 7/16-20 Male SAE/MS Straight Thread
-or-
6 mm Tube OD x 7/16-20 Male SAE/MS Straight Thread
rear view
side view
16 1.5
24 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
5.4 Turning on the CPC8000
After the pressure connections are secure in accordance with Section 5.5 below, apply power to the power
connector on the rear of the instrument and switch the power switch ON. The instrument will go through an
initialization process and system check. As soon as the system check is completed the system will default
to an operating screen similar to the screen shown in Section 3.2, Front Panel. Allow the instrument at least
30 minutes of warm up time before performing critical pressure measurements.
Earth Ground! Any power adaptors or surge protection devices that negate the
protective earth ground should not be used. The power cord must be accessible
and contain a protective earth ground.
Ventilation! Do not block airow to ventilating fans located on rear of instrument.
The instrument can be set up on a table top or it can be rack mounted. Rack mount adapters are optional.
After the controller has warmed up, cycle the pressure from the minimum to the maximum then back to
the minimum pressure of the primary transducer with the desired volume connected to the Measure/
Control port. This will allow the controller to properly compensate for the dierence in external volume
between what was used at the factory versus what is currently in use. This pressure cycle should occur
after each power cycle, or when the external volume size has been changed.
5.5 Pressure Connections
Warning! The pressure connections must be installed according to the following
instructions, observing the relevant regulations. The installation is to be performed
by trained, authorized personnel, knowledgeable in the safety regulations for
working on pneumatic/hydraulic systems.
Up to 6 pressure connections are on the rear panel. Pressure connections that are not
assigned are plugged.
High-End Pressure Controller - CPC8000
Power supply: 100 ... 120 VAC / 200 ... 240 VAC, 50 ... 60 Hz
Energy consumption: max. 140 VA
Pressure medium: clean dry air or nitrogen
Operating temp. : 15 ... 45°C
Serial number: 910021
Basic instrument: LP-NVR (-14.5 … 90 psi / 0 … 105 psi abs.)
Date of manufacture: 12/2012
Mensor - 201 Barnes Drive - San Marcos, TX 78666
BAROMETRIC
REFERENCE
SUPPLY
EXHAUST
VENT
REF
MEASURE\
CONTROL
Figure 5.5 - Pressure Connections
Operating Instructions - CPC8000 25
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High-End Pressure Controller
CPC8000
■ Supply
The pressure supplied to the pressure connection labeled “Supply” should be approximately 10%
higher than the full scale of the highest pressure transducer installed in the controller (see the label on
the lower right of the front panel).
■ Exhaust
The pressure connection labeled “Exhaust” is for the vacuum supply. In a gauge pressure version it
can be left open to atmospheric pressure.
If the instrument’s primary pressure range has the minimum pressure in the vacuum region but
is not negative atmosphere, a vacuum regulator will be included. The vacuum regulator included
(6100500023) will need to be connected in-line between a vacuum pump and the exhaust port of the
instrument in order for the instrument to control properly. This vacuum regulator will need to be set to
10% below the minimum range of the primary transducer of the instrument. The vacuum regulator can
be set using a at-head screwdriver.
■ Vent
The pressure connection labeled “Vent” is the exhaust port where the system pressure is vented to the
atmosphere under certain conditions. Leave this port open or connect the optional muer for noise
reduction.
■ Reference
This is the pressure connection to the reference ports of transducers with ranges <50 psi (4 bar)
gauge.
The Reference port should be left open to the atmosphere and should NEVER be connected to a pressure source.
The higher the supply pressure connected to the Supply port, the higher the pressure which leaves the
system through the exhaust port. If a vacuum pump is connected to the exhaust port, adequate safety
precautions have to be taken to prevent damage to the pump.
If vacuum is connected to the Exhaust port of the controller, negative pressure peaks might occur at the
Measure/Control port for a very short time, when changing from the Measure mode to the Control mode.
Before the system is connected, the user must ensure that suitable protection measures are in place
which exclude overpressuring of the test piece or the system.
■ Measure/Control
The Measure/Control port (when in the Control mode) supplies pressure that is precisely controlled
by the controller. In the Measure mode a pressure applied to the Measure/Control port is measured by
the instrument transducer.
■ Barometric Reference
The Barometric Reference port is connected to the internal barometric transducer and should be
left open to atmospheric pressure.
26 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
5.6 Pneumatic Connections and Pressure Fittings
The CPC8000 is supplied with ve 1/4 in. tube OD x 7/16-20 male SAE/MS straight thread adaptors or
ve 6 mm tube OD x 7/16-20 male SAE/MS straight thread adaptors (per order). The 7/16-20 male SAE/
MS straight thread end of the adaptors should be connected to the instrument’s 7/16-20 female SAE/MS
straight thread connections. The adaptors need only be “wrench tight” for proper sealing. Connections
should be made according to your specic requirements ( for example, a vacuum pump is only required
when controlling to a subatmospheric pressure).
For functional testing and to become familiar with the operation of the CPC8000, a volume
close to the volume expected during normal operation can be connected to the Measure/
Control port.
WARNING! The user must ensure that released pressure medium does not endanger personnel, environment or the instrument.
Test items with large volumes or long piping runs with small diameter tubing can have a
negative eect on the control performance.
Open
Clean dry air or Nitrogen
regulated pneumatic
supply pressure set at
110% of the highest full
scale internal range
High-End Pressure Controller - CPC8000
Power supply: 100 ... 120 VAC / 200 ... 240 VAC, 50 ... 60 Hz
Energy consumption: max. 140 VA
Pressure medium: clean dry air or nitrogen
Operating temp. : 15 ... 45°C
Serial number: 910021
Basic instrument: LP-NVR (-14.5 … 90 psi / 0 … 105 psi abs.)
Date of manufacture: 12/2012
Mensor - 201 Barnes Drive - San Marcos, TX 78666
Vacuum
pump, if required for
sub-atmospheric
pressure, otherwise
open
Open or
muer
Figure 5.6 - Pneumatic Setup
Open
Device under test
Operating Instructions - CPC8000 27
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High-End Pressure Controller
CPC8000
5.7 Electrical & Communication Connections
WARNING! The electrical installation must be done according to the following
instructions while observing the relevant regulations. It is to be performed by
individuals familiar with the safety regulations for working on electrical connections.
Pin 1
Pin 20
37-Pin Digital Input / Output
PIN DESCRIPTION
1 GROUND
2 INPUT1
3 INPUT2
4 GROUND
5 INPUT3
6 INPUT4
7 GROUND
8 OUTPUT1-COM
9 OUTPUT1-NC
10 OUTPUT1-NO
11 OUTPUT2-COM
12 OUTPUT2-NC
13 OUTPUT2-NO
14 OUTPUT3-COM
15 OUTPUT3-NC
16 OUTPUT3-NO
17 OUTPUT4-COM
18 OUTPUT4-NC
Figure 5.7 - Electrical Connections
Note: USB ports are compliant with the industry standard.
Pin 19
Pin 37
19 OUTPUT4-NO
20 INPUT5
21 INPUT6
22 GROUND
23 INPUT7
24 INPUT8
25 GROUND
26 OUTPUT5-COM
27 OUTPUT5-NC
28 OUTPUT5-NO
29 OUTPUT6-COM
30 OUTPUT6-NC
31 OUTPUT6-NO
32 OUTPUT7-COM
33 OUTPUT7-NC
34 OUTPUT7-NO
35 OUTPUT8-COM
36 OUTPUT8-NC
37 OUTPUT8-NO
IEEE-488.2
24-Pin IEEE-488 Socket
PIN DESCRIPTION
1 D101
2 D102
3 D103
4 D104
5 EOI
6 DAV
7 NRFD
8 NDAC
9 IFC
10 SRQ
11 ATN
12 SHIELD
13 D105
14 D106
15 D107
16 D108
17 REN
18 GND
19 GND
20 GND
21 GND
22 GND
23 GND
24 GND
RS-232
9-Pin D-Sub Socket
PIN DESCRIPTION
1 DCD
2 TxD
3 RxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 Ri
Note:
No Null Modem
Required
28 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
5.7.1 Notices Regarding the Electrical Connections
5.7.1.1 Power Supply
WARNING! Before connecting the power supply, make sure that the power voltage
agrees with the voltage specication of the CPC8000. Switch o the system before
connecting the power.
The 3-pin power cable supplied is tted with a ground lead. The system should only be operated from a
3-pin socket with the ground lead properly connected.
5.7.1.2 Interfaces
WARNING! The interface cables must not be longer than 3 meters and must be
separate from cables with voltages greater than 60 volts.
5.7.1.3 Ethernet Interface
The Ethernet jack is a standard Ethernet interface used for remote communication.
5.7.1.4 USB Host Interface
The USB Host interface is a service port used to upgrade software and download information from the
device. It has the same function as the USB Host port on the front of the CPC8000.
5.7.1.5 USB Device Interface
The USB Device jack is a standard USB Type B receptacle interface used for remote communication. The
USB Driver can be downloaded at http://www.mensor.com/download_software_drivers_en_um.WIKA
5.7.1.6 RS-232 Interface
The RS-232 interface is a 9-pin D-Sub socket used for remote communication.
5.7.1.7 IEEE-488 Interface
The IEEE-488 interface is an IEEE-488 socket used for remote communication.
5.7.1.8 Input/Output Port
CAUTION! The Input/Output port has eight digital inputs that will accept either 3.3 VDC or
5 VDC signaling. Each input consumes about 8-10mA. If a voltage greater than 6VDC is
applied to an input it will be permanently damaged.
The Input/Output port also has eight relay outputs. Both normally open and normally closed contacts are
available for each output on the port. The contact ratings for the relays are as follows:
■ Rated load (resistive): 0.5A @ 125VAC, 1A @ 24VDC
■ Rated carry current: 2A
■ Max. switching voltage: 125VAC, 60VDC
■ Max. switching current: 1A
■ Max. switching power: 62.5VA, 30W
The instrument can be set to respond to the digital inputs and to change the outputs based on certain
conditions. See section 7.5.2.5.8.
Operating Instructions - CPC8000 29
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High-End Pressure Controller
CPC8000
6. Local Operation
6.1 General
This section describes the procedures for operating the CPC8000 from the front panel. Instructions for
operating the instrument from an external computer are covered in Section 8, Remote Operation. By
following the procedures provided in these two Sections and in Section 7, Setup, you can expect your
CPC8000 to deliver maximum accuracy and dependability for many years of exceptional service.
When the instrument is powered on it will take about 30 seconds to boot up. At the end of the boot
process the display screen similar to gure 6.1 will appear. This is the main operating screen. At this point
the CPC8000 is ready for operation. However, for critical tests and measurements allow the unit to warm
up for at least 15 minutes with power on to ensure rated accuracy.
Notice that the portion of the screen with a blue eld covers about two-thirds of the total screen area. This
area contains the pressure output reading, the setpoint, the active transducer range, units of measure,
limits and a choice between the control modes: Measure, Control or Vent.
The sidebar to the right (black eld) is used for entering data, adjusting environmental settings, dening
parameters for remote operations, and making choices in the conguration. Several dierent sidebars
can be accessed from the main screen to achieve dierent objectives.
This section of the manual will explain features of this main operating screen and the associated
sidebars.
Initialized Display - Ready for Local Operation
Main Screen (Blue)
Test / Calibration Parameters
Figure 6.1 - Initialized Display
Sidebar (Black)
Data entry
Beyond the main screen are a series of setup screens used to adjust parameters and conditions, such as
performing calibrations, running programmed routines, operating from a remote computer, etc. All such
setup screens are on black backgrounds, and have their own sidebars (also black) for choice menus and
data entry. Explanations and instructions for using these setup screens are covered in Section 7, Setup.
30 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
6.1.1 Buttons, Keys, Switches, Tabs, and other terms
Many of the words and symbols displayed on screen are active touch points, such that when touched or
pressed something will change if it is an allowable action. In this manual these touch sensitive points are
shown inside brackets such as [Setpoint], the button seen in the upper middle corner of the main screen
(see gure 6.1.2). These touch points may be referred to as a button, a key (such as a number key), a
toggle switch, a radio button also called a tab. Radio buttons and tabs are mutually exclusive buttons (if
one in a group is chosen the others cannot be selected at the same time). Tabs are radio buttons shown
along the bottom of most screens and they open other screens related to the activity named on the tab or
indicate a selection associated with the active screen.
A touch point will respond with an audible “beep” as a signal of acceptance. A “blap” (error tone)sound is
a signal that an illegal action was attempted, such as a number entry beyond the allowable range.
A word or symbol on a screen which does NOT respond to being touched or pressed is referred to in
this manual as a label, window, monitor or an indicator. A label is merely a bit of information appropriate to the displayed activity, while a window is a variable, usually a numeric value. Also, some screens
will display a line or more of text messages. Labels, windows, monitors, indicators and text are not touch
sensitive.
6.1.2 Map of the Main Screen Features
Figure 6.1.2 is a map of the main screen features and reects a CPC8000 without any of the extra display
options. The map includes a title box for each screen feature and the section number of the explanatory
text about the feature and its use.
AUTORANGE /
RANGE HOLD
(see 6.2.1)
RANGE LIMITS
(see 6.2.10)
PRESSURE TYPE
(see 6.2.13)
PRESSURE UNITS
(see 6.2.12)
BAR GRAPH
(see 6.2.11)
CONTROL LIMITS
(see 6.2.10)
PRESSURE
READING
(see 6.2.2)
SETPOINT
VALUE
(see 6.2.4)
SETPOINT
(see 6.2.3)
SETUP
(see 6.2.5
and 7.0)
SETPOINT ENTRY
METHODS
(see 6.2.6)
FAVORITES
(see 6.2.7)
EDIT FIELD
(see 6.2.6.2)
ENTRY LIMITS
(see 6.2.10)
NUMBER KEY PAD
(see 6.2.6.1)
DELETE ENTRY
(see 6.2.6.1)
BACKSPACE
(see 6.2.6.1)
ACCEPT ENTRY
(see 6.2.6.1)
SECONDARY &
TERTIARY DISPLAYS
(see 6.2.9)
OPERATING
MODES
(see 6.2.14)
SCREEN LOCK
(see 6.2.8)
ERROR INDICATOR
(see 6.2.8)
Figure 6.1.2 - Main Screen Map
Operating Instructions - CPC8000 31
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High-End Pressure Controller
CPC8000
6.2 Main Screen Features
The table below is a reference list of the features that appear on the main screen after power up.
Table 6.2 - Reference List of the Main Screen Features
Feature
Autorange / Range Hold see 6.2.1
Pressure Reading see 6.2.2
Setpoint see 6.2.3
Setpoint Value see 6.2.4
Setup see 6.2.5 & 7.0
Setpoint Entry Methods see 6.2.6
Number Key pad see 6.2.6.1
Delete Entry see 6.2.6.1
Backspace see 6.2.6.1
Accept Entry see 6.2.6.1
Number Pad Step see 6.2.6.2
Favorites see 6.2.7 & 7.0
Screen Lock see 6.2.8
Error Indicator see 6.2.8
Secondary & Tertiary Displays see 6.2.9
Limits (Range, Control, and Entry) see 6.2.10
Bar Graph see 6.2.11
Pressure Units see 6.2.12
Pressure Type see 6.2.13
Operating Modes see 6.2.14
6.2.1 Autorange / Range Hold
The upper left corner of the main screen shows either [Autorange] or [Range Hold]. Although this is a
two-state button, it is not a toggle switch. When [Autorange] is displayed the system will automatically
select which of the available transducers (up to 3) to use at any time in a process for maximum accuracy.
When [Range Hold] is showing the operator has assigned a specic transducer to be the lone, active
transducer. In either case the active transducer window immediately below the button will identify, by
range, which is the active transducer of the moment.
Press the [Autorange] / [Range Hold] button to cause the transducer assignment list to appear in the
sidebar. This list will show a table of up to four choices, Autorange and one, two or three transducers,
by range. The presently active range is highlighted. Touch either one of the listed ranges, or [Autorange]
and that choice is immediately eective. If the CPC8000 is under pressure, only those transducers with
ranges equal to or above the internal pressure are allowed to be chosen.
32 Operating Instructions - CPC8000
Page 33
6.2.2 Pressure Reading
High-End Pressure Controller
CPC8000
Figure 6.2.1 - [Autorange] / [Range Hold]
The large, green number displayed in gure 6.2.1 is the pressure reading at the transducer connected to
the Measure/Control port. It is green because the sensed pressure is within a user-dened stable window
for a user-dened period of time. When the pressure is outside of the stable window, the number will be
white. See Section 7.3.2 for a detailed explanation and setup of the stable window.
The pressure reading will turn red if an external pressure is applied at the Measure/Control
port that is 7% greater than the upper limit of the active transducer. Each transducer is supplied with a pressure release valve set for 10% over the calibrated pressure. Inherent internal
safeguards are set to prevent overpressure.
6.2.3 Setpoint Button
The [Setpoint] button will activate a sidebar data entry method to accept a new setpoint value. The
setpoint value is displayed in the window just below the [Setpoint] button on the main screen, see Section
6.2.4. The setpoint value can also be adjusted incrementally in the sidebar by use of one of four setpoint
entry methods:
■ The numeric key pad
■ A numeric step value assigned to the up [▲] and down [▼] arrow keys
■ A digital step assigned to the up [▲] and down [▼] arrow keys
■ A program
Procedures for making changes to the setpoint using these methods are covered in Section 6.2.6,
Setpoint Entry Methods.
6.2.4 Setpoint Value
The setpoint value window is located immediately under the [Setpoint] button. It displays the current
pressure setpoint (target value for the output pressure provided by the internal regulator when in Control
mode). To edit the setpoint value, rst touch the [Setpoint] button. This will activate the system for setpoint
changes. The sidebar will display the default number key pad or a pre-chosen setpoint entry method. To
change the setpoint value use one of these methods described in Section 6.2.6.
Operating Instructions - CPC8000 33
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High-End Pressure Controller
CPC8000
Figure 6.2.4 - Output Pressure Setpoint
6.2.5 Setup
Press Setup [
bottom row of six subject tabs and the arrow on the left end of the row (see gure 6.2.5). Each tab will
bring up a screen relevant to the subject in the tab title.
After regaining the main screen, the last visited setup screen will return if Setup [
Operational information for the setup screens and their associated sidebars is contained in Section 7,
Setup.
6.2.6 Setpoint Entry Methods
Pressing the key pad icon [ ] in the middle of the top row will display the four line menu as shown
below.
] in the sidebar to move out of the main screen and into the setup screens. Notice the
Figure 6.2.5 – Setup Screen Tabs
] is pressed again.
Returns the number key pad to the main screen (see 6.2.6.1).
Sets the setpoint step value (see 6.2.6.2).
Sets the selected setpoint digit (see 6.2.6.3).
Activates a program and program control (see 6.2.6.4).
Figure 6.2.6 - Setpoint Entry Methods
34 Operating Instructions - CPC8000
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6.2.6.1 Number Key Pad
Input Value
Window
Pressure
limits
High-End Pressure Controller
CPC8000
The [Number Pad] button provides 10 digits for numeric entry,
plus the decimal point and a sign key. The sign key [+/-] will toggle
between positive and negative values. Each stroke on the key pad
will echo in the blue input value window above the pad. A change
between plus and minus values [+/-] can be entered at any time
during the string entry. Pressing the Enter [ ] key will accept the
value and it will become the new Setpoint.
If the input window holds an illegal value when the Enter [ ] is
pressed the system will respond with a an error tone and the entry
will turn red. When that happens determine the cause of the rejection,
delete the entry, and then enter a valid number.
Pressure limits are shown above the key pad and indicate the allow-
able range for entry. This is either the range of the active transducer,
the full range of the instrument (when in Autorange mode) or the
range limits set in the setup controls limits menu (see Section 7.3.1
Max and Minimum Limits).
There are three action keys below the number keys that operate on the numbers displayed in the input
value window:
Press the Enter [ ] key to accept the value showing in the number echo window into
the system for immediate use.
Press the Backspace [
] key to erase the last number entered in the string. Multiple
presses will back out multiple digits.
Press the Delete [
] key to delete the entire value showing in the echo window (see
Section 6.2.8) to start anew, or to abort.
6.2.6.2 Number Pad / Step
The “Number Pad Step” key pad functions in two dierent ways:
(1) A setpoint can be entered in the same way as the Number Key Pad above:
key in the number and press Enter [ ], that number is then immedi-
ately accepted into the setpoint value.
(2) Key in a number and press the Step Up [ ] or the Step Down [ ]
key, (without pressing the Enter [ ] key), that number will be used to
decrease or increase the existing setpoint value.
Subsequent touches of the Step Up or Step Down key will continue to
increase or decrease the setpoint by this step value until a new value is keyed
in followed by a key press of the Step Up [ ] or the Step Down [ ]
key. If the Enter [ ] key is pressed the newly entered value will register as
a new setpoint value on the main screen rather than a step value.
Operating Instructions - CPC8000 35
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High-End Pressure Controller
CPC8000
6.2.6.3 Digital Step
In the digital Step Data Entry Mode there is initially a string of ve white zeros (0)
and one blue numeral one (1) across the top as shown in the gure to the left. Any
one of these zeros can be converted to a blue 1 by touching it. Slide a nger
across the zeros to demonstrate this action. Using this feature each digit of the
setpoint can be increased or decreased by one digit at a time by activating the
corresponding digit with a blue 1 and pressing the Up [ ] or Down [ ]
key.
For example, in the screen below the setpoint is at 50.0000, and the operator would like to change
this to 51.0000, 52.0000, 53.0000.... and so on. He simply has to touch the digit in the Digital Step
that corresponds to the “ones” digit in the Setpoint, thereby activating that digit and then press the
Up [ ] key to increase that digit.
If the resolution of the instrument were set to 4 then the right most digit in the Digital Step screen would
correspond to the least signicant digit of the setpoint and the left two digits in the Digital Step screen
would not be used.
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High-End Pressure Controller
CPC8000
6.2.6.4 Program Data Entry
The Program Data entry method provides an automated way to interact with the CPC8000. Many setting
or process that can be entered manually can be programmed into the unit and saved and used in the
Program portion of the data entry screen. Programs are prepared and stored in the Setup [
cation] / [Program] screen. See Section 7.5.2.5.6 Programs for details on how to create, edit and save
programs.
Current
program
and
program
selection
button
] / [Appli-
Figure 6.2.6.4 - Program Data Entry Screen
After a program has been chosen by pressing the program selection button, press the Play [ ] button
to start the program. The Pause [ ] button can be pressed at any time to stop the program at the
current step, then the Play [ ] can be pressed to resume. To move forward or backwards in the
program press the Back [ ◀ ] button or the Forward [ ] button. The Stop [ ] button will
stop the program and place the CPC8000 in Measure mode.
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High-End Pressure Controller
CPC8000
6.2.7 Favorites
The Favorites [ ] button provides a place to store s that are frequently used and also contains several
prepackaged programs that are used to perform a leak test and a single point zero of each transducer.
Programs that are displayed in the Favorites menu are chosen in the Setup [ ] / [Applications] /
[Favorites] screen. See Section 7.5.2.5.7 to select displayed favorites.
Figure 6.2.7 - Favorites
6.2.8 Status Bar
Located below the number pad is a status bar consisting of two icons.
Screen
lock
Error
indicator
Figure 6.2.8 - Status Bar
Screen lock: This icon indicated the status of the touchscreen: locked or unlocked for
manual interaction.
Error indicator: A yellow error indicator triangle indicates that there is an error recorded in
the error register. Pressing the yellow error indicator will open the Setup [
tions] / [Troubleshoot] screen where errors can be viewed. See Section 7.5.2.5.9, Trouble-
shoot for more information. The error register will clear itself when it is viewed, however, this
does not correct the error. A corrective action still must be specically addressed.
] / [Applica-
38 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
6.2.9 Secondary and Tertiary Display
There are two data lines available in the lower portion of the main screen reserved for the operator to
display two items from a list of choices. The rst line is called the secondary display, and the next line is
the tertiary display. The list of choices are identical for both lines. The choices are available for selection
in the Setup [
explanation on how to setup and choose options for this area is given in Section 7.1.2, Secondary and
Tertiary Display.
Secondary Display
Tertiary Display
] / [General] [Secondary / Tertiary Display] screen shown in gure 6.2.9b below. An
Figure 6.2.9a - Secondary and Tertiary Displays
Figure 6.2.9b - Screen of Display Choices
Operating Instructions - CPC8000 39
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High-End Pressure Controller
CPC8000
6.2.10 Limits
Limits are shown in three places in the main screen. The “Range Limits”, “Control Limits” and “Entry
Limits” shown in gure 6.2.10 below can show two dierent readings depending on settings. The “Range
Limits” shows the limits of the range selected in Range Hold mode or the limits of the active transducer
in Autorange mode. The “Control Limits” are the limits entered into the Setup [
mum Limits]/[Minimum Limits] screen (see Section 7.3.1). The “Control Limits” limit the value that can be
entered as a setpoint. The “Entry limits” are equal to the lessor of the Control Limits or the Range Limits
(when in Range Hold mode).
Range
Limits
Control
Limits
] / [Control] [Maxi-
Entry
Limits
Figure 6.2.10 - Limits
6.2.11 Bar Graph
The bar graph is always active and reports in real time the pressure at the Measure/Control port. This
provides a visual comparison between the actual pressure and the user selected control limits.
Bar Graph
Figure 6.2.11 - Bar Graph
40 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
6.2.12 Pressure Units
The pressure units that the CPC8000 is currently using are displayed very near the center of the main
screen, just above the bar graph. To change pressure units, touch the current unit symbol to display a
page of the units menu in the sidebar. There are forty pre-dened pressure units listed in seven menu
pages so it may be necessary to scroll through several pages to locate the desired units. On the screen,
touch either the up [▲] or down [▼] symbol to scroll to the next units page. Continue to scroll until the
desired pressure units are found; then touch that line in the menu to activate the new units.
Touching the [▼] & [▲] symbols will scroll continuously through each set of units and start over at the
beginning.
Pressure
units
Pressure
type
Figure 6.2.12 - Pressure Units
There are several tables of conversion factors for pressure units in Section 11, Appendix. The PSI table
includes the factors for conversion to or from PSI to all of the other available units. Another table uses Bar
as the basis for conversion factors to or from most of the more common alternative units.
6.2.13 Pressure Type
Units menu
page 3 of 7
Pressure type (see gure 6.2.12) is a label of either [Gauge] or [Absolute] according to what type of transducer is in the CPC8000. The exception is that this feature is an active switch which toggles between
[Gauge] and [Absolute] if there is a barometer option included in the system. The barometer is used to
emulate gauge pressure when the native transducers are absolute and absolute when the native transducers are gauge. (See Section 9.3 for details of the barometric reference transducer option).
Operating Instructions - CPC8000 41
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High-End Pressure Controller
CPC8000
6.2.14 Operating Modes
The CPC8000 has three operating modes: Measure, Control, and Vent. After the system has been
switched on, and after a subsequent short self-test, the instrument will automatically be placed in Mea-
sure mode. The operator can switch from one mode to another by using the mode selection keys located
just below the front panel display.
When switching from Control mode to Measure mode, the system will not be vented and the
last applied pressure will be locked in the system by means of a solenoid valve.
Measure
Mode
Measure Mode:
In Measure mode the CPC8000
acts like a precision pressure
measuring instrument and
measures the pressure applied
at the Measure/Control port.
If the Control mode was the
last used mode before switching into Measure mode, the last
controlled pressure is held in the
test assembly.
See Section 6.2.14.1, Measure
Mode
Control
Mode
Figure 6.2.14 - Operating Modes
Control Mode:
In Control mode the CPC8000
provides a controlled pressure at
the Measure/Control port equal
to the setpoint value.
See Section 6.2.14.2, Control
Mode
Vent
Mode
Vent Mode:
The Vent function will vent the
system to the atmosphere,
including the test assembly
connected to the Measure/
Control port.
See Section 6.2.14.3, Vent Mode
42 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
6.2.14.1 Measure Mode
In Measure mode, the instrument measures the pressure at the transducer connected to the Measure/
Control port. The Measure mode is activated by pressing the [Measure] button.
Measure
Mode
Figure 6.2.14.1a - Measure Mode
If the pressure is beyond the permissible measurement range, the pressure reading is displayed in red
instead of white gures. As soon as a pressure of approximately 110% full scale is reached, an integrated
safety relief valve opens and releases the pressure into the inside of the instrument. The regulator is not
active in Measure mode.
The setpoint value can be input while in the Measure mode then Control mode can be activated by pressing the [Control] key and the CPC8000 will start to control to the setpoint value.
Operating Instructions - CPC8000 43
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High-End Pressure Controller
CPC8000
The gure below shows the state of the isolation valves in Measure mode.
Measure Mode
EXHAUST
Regulator
is inactive
SUPPLY
NO to Vent
NC
VENT
NO
NO
MEASURE/ CONTROL
OPTIONAL BAROMETRIC
REFERENCE
Optional
Barometric
Sensor
Primary
Pressure
Transducer
NC
Optional
Secondary
Transducer
NC
Optional
Tertiary
Transducer
REFERENCE
(Gauge only)
Legend:
Valve is
OPEN
NO = Normally Open
NC = Normally Closed
Valve is
CLOSED
*NOTE: The transducer shuto valve (yellow valve) is closed:
1) In Autorange Mode when the system pressure is
outside of the connected transducer range.
2) In Range Hold mode when another transducer is
selected.
Otherwise it is open.
Conditional
State*
Popoff Valve set
at 10% above
transducer range
6.2.14.1b - Isolation Valves in Measure Mode
44 Operating Instructions - CPC8000
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High-End Pressure Controller
CPC8000
6.2.14.2 Control Mode
In Control mode, the instrument provides a precise pressure output at the Test port. The indication of
the current pressure value will turn green when the setpoint has been reached and the stable window
settings have been satised.
Control Mode
Figure 6.2.14.2a - Control Mode
The Control mode is activated by pressing the [Control] button in the main menu. The Control mode can
be accessed from the Measure mode or the Vent Mode by pressing the [Control] button. In the Control
mode the CPC8000 acts as a precision pressure controller and provides a stable pressure output at the
Measure/Control port.
In order to ensure that the controller is correctly congured for the task it is to perform, the following
measures must be taken and the respective parameters must be set in the Setup [ ] menu.
• In order to control pressures close to or below atmospheric pressure, a vacuum pump should be
connected to the Exhaust port.
• The control speed can be set in the Setup [ ] / [Control] / [Rate setpoint] screen. The Control rate
can be set between 0.001% of range/sec to 10% of range/sec.
• Control limits can be set in the Setup [ ] / [Control] / [...limits] screen.
Operating Instructions - CPC8000 45
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High-End Pressure Controller
Control Mode
SUPPLY
REFERENCE
(Gauge only)
OPTIONAL BAROMETRIC
REFERENCE
MEASURE/ CONTROL
VENT
EXHAUST
Optional
Secondary
Transducer
Optional
Tertiary
Transducer
Primary
Pressure
Transducer
Optional
Barometric
Sensor
Valve is
OPEN
Legend:
Valve is
CLOSED
Conditional
State*
Popoff Valve set
at 10% above
transducer range
Regulator is Active
Open to Exhaust if the internal pressure is
< 2 bar absolute, otherwise open to Vent.
NO
NO
NC
NC
NC
NO to Vent
NO = Normally Open
NC = Normally Closed
*NOTE: The transducer shuto valve (yellow valve) is closed:
1) In Autorange Mode when the system pressure is
outside of the connected transducer range.
2) In Range Hold mode when another transducer is
selected.
Otherwise it is open.
CPC8000
The gure below shows the state of the isolation valves in Control mode. Notice that the regulator is
active in the Control mode.
46 Operating Instructions - CPC8000
Figure 6.2.14.2b - Isolation Valves in Control Mode
Page 47
High-End Pressure Controller
CPC8000
6.2.14.3 Vent Mode
Vent mode vents the pneumatic system and shuts o the supply. The Vent mode can be activated from
the Measure or Control mode by pressing the [Vent] button. Internal system pressure will be vented
through the Vent port.
Vent Mode
Figure 6.2.14.3a - Vent Mode
WARNING! Venting will cause a sudden loss of pressure in the system and the
plumbing connected to the measure control port. Care must be taken that the
device under test is not damaged during venting.
WARNING! In some cases venting will exhaust high velocity air from the vent port.
Personnel and sensitive equipment should not be in close proximity to the vent port
during venting.
WARNING! In some cases venting high pressure will cause a loud sound. Personnel
should wear a hearing protection device when working with high pressures.
Operating Instructions - CPC8000 47
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High-End Pressure Controller
CPC8000
The gure below shows the state of the isolation valves in Vent mode.
Vent Mode
EXHAUST
Regulator
is inactive
SUPPLY
NO to Vent
NC
VENT
NO
NO
MEASURE/ CONTROL
OPTIONAL BAROMETRIC
REFERENCE
Optional
Barometric
Sensor
Primary
Pressure
Transducer
NC
Optional
Secondary
Transducer
NC
Optional
Tertiary
Transducer
REFERENCE
(Gauge only)
Legend:
Valve is
OPEN
NO = Normally Open
NC = Normally Closed
Valve is
CLOSED
*NOTE: The transducer shuto valve (yellow valve) is closed:
1) In Autorange Mode when the system pressure is
outside of the connected transducer range.
2) In Range Hold mode when another transducer is
selected.
Otherwise it is open.
Conditional
State*
Popoff Valve set
at 10% above
transducer range
Figure 6.2.14.3b - Illustration Showing Isolation Valves in Vent Mode
6.2.14.4 State of the Isolation Valves when the CPC8000 is o
When the CPC8000 is turned o the valves revert to their normal state: either Normally Open (NO) or
Normally Closed (NC) as indicated above.
48 Operating Instructions - CPC8000
Page 49
7. Setup
High-End Pressure Controller
CPC8000
After the instrument has been powered on and the main screen is displayed, press the Setup [
]
button on the sidebar to setup parameters or make changes to the instrument settings.
Setup [ ] button
Figure 7a - Location of the Setup [
] button on the main screen
The following is a menu tree that shows the general layout of the setup menus. The bullet points in
blue represent screens that require the rst level password to view; those in red require a second level
password to view.
[Back key]
Reverts to the
previous screen
or main screen
■Language
■Secondary
display
■Tertiary Display
■Brightness
■Volume
■Barometer
■Load
■Save
■Filter
■Resolution
■Units
■Rate Units
■User Units 1
■User Units 1
multiplier
■User Units 2
■User Units 2
multiplier
■Max limit
■Min limit
■Stable limits
■Stable Delay
■Rate Setpoint
■Vent Rate
■Vent Limit
Press Setup [
Remote Setup
■Command Set
IEEE-488
■ IEEE-488
address
Ethernet
■IP
■Netmask
■Gateway
■Port
■DHCP
Serial
■Baud
■Data Bits
■Stop Bits
■Parity
■Echo
]
■1-Point Cal
■2-Point Cal
■Linearize
■Head Correction
■Programs
■Favorites
■Digital I/O
■Troubleshoot
■Adaptation
■Tune
■Admin
■Software
Information
about the
CPC8000
Figure 7b - Menu Tree of the Setup Menus
Operating Instructions - CPC8000 49
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High-End Pressure Controller
CPC8000
7.1 General Tab
7.1.1 Language
The languages that are available in the CPC8000 are shown by pressing Setup [
[General] tab, and then the [Language] button. Note that the active language is indicated on the right side
of the [Language] button. When the [Language] button is pressed, the sidebar will show the languages
that are available. Pressing the desired language on the sidebar will make that language active on every
screen in the CPC8000.
Figure 7.1.1 - Language
], then press the
7.1.2 Secondary and Tertiary Display
The Secondary and Tertiary display areas provide a place to indicate extra data that may be desired
during testing or calibration. In the [General] tab, there is a selection button labeled [Secondary Display]
and one labeled [Tertiary Display]. Clicking either of these will change to a sidebar to indicate the choices
that are available to each of these display areas. Pressing any one of these choices will make that choice
active in its respective display area on the main menu.
Figure 7.1.2 - Secondary and Tertiary display
50 Operating Instructions - CPC8000
Page 51
7.1.3 Brightness
High-End Pressure Controller
CPC8000
The [Brightness] button within the [General] tab of the Setup [
global brightness of the instrument’s screens. When the [Brightness] button is chosen a graduated
brightness “bar graph” will appear in the sidebar. This is a sliding scale of brightness and can be changed
by sliding ones nger up and down on the bar graph or simply touching an area on the graph that
corresponds to a brightness level.
Figure 7.1.3 - Brightness
] menu provides a place to set the
7.1.4 Volume
The [Volume] button within the [General] tab of the Setup [
volume for the instrument’s auditory feedback sounds. When the [Volume] button is chosen a graduated
volume “bar graph” will appear in the sidebar. This shows the relative volumes available and can be
changed by sliding ones nger up and down on the bar graph or simply touching an area on the graph
that corresponds to the desired volume level.
] menu provides a place to set the global
Figure 7.1.4 - Volume
Operating Instructions - CPC8000 51
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High-End Pressure Controller
CPC8000
7.1.5 Barometer (Units)
The Barometer button provides selection of units from a list of English or Metric units presented on the
right side of the screen. Any of these units can be chosen from this list for the barometric readout. The
barometric pressure readout can be seen on the bottom right of the Main Screen.
Figure 7.1.5 Barometer (units)
7.1.6 Load (Conguration)
Each conguration can store a complete set of parameters and settings. Congurations can be recalled
(loaded) as needed. Congurations contain settings for the following set of parameters:
Table 7.1.5 - Conguration Parameters
Lower limit Upper limit Setpoint Step Rate setpoint Rate step
Stable window Stable delay Rate stable
window
Filter Resolution Units Rate units Secondary units Brightness
Volume
Rate stable delay Vent rate Emulation mode
(gauge/abs)
Explanation on how to set up each conguration can be found below in Section 7.1.6
The [Load] button within the [General] tab of the Setup [ ] menu, shown in gure 7.1.5, provides a
place to choose a saved conguration. When the [Load] button is chosen a choice of several congurations are displayed on the sidebar. When one conguration is chosen its saved parameters and settings
will be active in the instrument.
52 Operating Instructions - CPC8000
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High-End Pressure Controller
Figure 7.1.6 - Load (conguration)
CPC8000
7.1.7 Save (Conguration)
The [Save] button within the [General] tab of the Setup [ ] menu, shown in gure 7.1.6, provides a
place to save congurations for the instrument. When the [Save] button is chosen a list of conguration
numbers are displayed on the sidebar. When a conguration number is chosen and the check mark [
] is pressed the current instrument settings will be saved within this conguration number. Instrument
settings that are saved in conguration settings are given in table 7.1.5.
Figure 7.1.7 - Save (conguration)
Congurations can be used to save time in setting up parameters for specic calibration needs. For
example, there may be a requirement to calibrate a 100 psi transducer, and an upper limit of 105
psi cannot be exceeded and the rate of pressure change cannot exceed 5 psi per second. These
parameters can be set and assigned (saved) in one of the conguration numbers and recalled (loaded)
before this test is run.
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7.2 Sensor Tab
Within the [Sensor] tab of the Setup [
installed pressure transducers. Settings chosen here will aect the indicated and remote output of the
instrument’s pressure reading.
7.2.1 Sensor Filter
In the [Sensor] tab in the Setup [
button shows the current lter setting. The sensor lter acts on the output pressure indicated on the
instrument, ltering out small pneumatic and electrical variations in the pressure transducer output. This
is done by mathematically smoothing the output reading using a low pass lter on the electrical output
of the pressure transducer. The lter can be set to O, Low, Normal or High simply by pressing the
associated button on the right site of the menu.
] menu are parameters that are associated with all of the
] menu there is a button labeled [Filter]. The right side of the [Filter]
Figure 7.2.1 - Filter
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7.2.2 Resolution (Display Digits)
High-End Pressure Controller
CPC8000
In the [Sensor] tab in the Setup [
[Resolution] button shows the current resolution setting with a blue button. The display resolution for the
pressure output can be chosen from this side bar selection menu. The resolution is the number of digits
that will be shown in the pressure indication within all screens of the instrument. The user can change the
resolution to 4,5 or 6 with CPR8000 transducers and to 4,5,6 or 7 with CPR8800 transducers
] menu there is a button labeled [Resolution]. The right side of the
Figure 7.2.2 - Resolution
7.2.3 Units
In the Setup [
a set of 6 selectable units and an Up [ ] and a Down [ ] arrow used to scroll through a set of 40
dierent units and 2 user dened units. Selecting any of these units will change the unit of measure for
the pressure sensed by all of the internal pressure transducers and will also apply these units to reading
taken remotely. This same selection of units can be accessed directly from the Main screen by pressing
the button displaying the current units.
] /[Sensor] tab there is a button labeled [Units]. When selected, the side bar will display
Figure 7.2.3 - Units
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7.2.4 Rate Units
In the Setup [
show a choice of time denominator units: Seconds [Sec] and Minutes [Min]. The currently selected time
denominator unit (Sec or Min) will have a blue background. Selecting minute [Min] or second [Sec] will
apply this time denominator to all rate functions in the instrument including [Rate Setpoint], and [Vent
Rate]. When this unit is change, all rate setpoints are adjusted so they are mathematically equivalent
to their current setting. For example, If the [Rate Setpoint] is set at 60 psi/min, then changing the rate
denominator unit to Seconds would convert the [Rate Setpoint] to 1 psi/sec.
] /[Sensor] tab there is a button labeled [Rate Units]. When selected, the side bar will
Figure 7.2.4 - Rate Units
7.2.5 User Units
In the Setup [
setup the “base unit” and multiplier used to dene [User Unit 1] and [User Unit 2]. For [User Unit 1] and
[User Unit 2] the process is the same. Selecting the rst [User Unit #] will display a choice of [psi], [bar] or
[pascal] in the sidebar. Choosing one of these “base units” will form the basis of the equation that denes
the [User Unit #] chosen. Immediately below the rst [User Unit #] button is the [User Unit #] Multiplier
button that indicates the current multiplier and when pressed will display a keypad in the side bar where
a new multiplier can be entered. These two choices are used to calculate the value of the [User Unit #]
by the following equation: User Unit = 1 Base Unit X Multiplier. For example if a unit is needed, that is not
currently available from the 40 choices, for instance tons per square meter (tsm), then the psi conver-
sion factor for this can be found and is: 1 psi = 0.703069 tsm. In this instance psi would be entered as
the base unit and 0.703069 as the multiplier. The new user unit associated with this base unit and multiplier would now be displayed when that User Unit is chosen in the main menu or on the Setup [
[Sensor] / [Units] screen.
] / [Sensor] tab there are several buttons with prexes “User Units”. These are used to
] /
Figure 7.2.5 - User Units and User Units Multiplier
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7.3 Control Tab
High-End Pressure Controller
CPC8000
The [Control] tab within the Setup [
associated with the pressure output from the instrument’s regulator. Control limits, stable window congu-
ration, the rate setpoint, vent rate and vent limit can be found in this section.
7.3.1 Max and Minimum Limits
The [Maximum Limit] and [Minimum Limit] buttons under the Setup [
place to limit the setpoint that can be chosen in the main screen. These limits can only be set within the
range of the active transducer. When the CPC8000 is in Autorange the limits can only be set within the
range of the primary transducer which, by convention, will have the widest range. The minimum limit
must be lower than the maximum limit. The operator cannot enter setpoints and thereby not control to
pressures outside of these limits.
] menu contains settings that limit or control display elements
] / [Control] screen provide a
Figure 7.3.1 - Maximum Limit and Minimum Limit Buttons
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CPC8000
7.3.2 Stable Limits
Both the [Stable Limits] and the [Stable Delay] buttons can be found under the [Control] tab in the Setup
[
] menu. Both of these are used to dene a stable condition for pressure control or measurement
(see gure 7.3.2a). When the controller enters a stable condition the font color for the pressure indication will change from white to green. For example, an operator would like the CPC8000 to show a stable
indication only after the pressure output has been at the setpoint ±0.002% FS for 2 seconds. In this case,
the [Stable Limit] should be set at 0.002, and the [Stable Delay] should be set at 2. The graphic in gure
7.3.2b illustrates this.
2500
2000
1500
Pressure
1000
Figure 7.3.2a - Stable Limits and Stable Delay
+/- 0.002 %FS (not to scale)
2 seconds
Pressure indication is white
Pressure indication is green
500
0
0 10 20 30 40 50 60
Time
Figure 7.3.2b - Graph Illustration
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7.3.3 Rate Setpoint
The [Rate Setpoint] is set in the Setup [
change when the CPC8000 is controlling up or down to a setpoint. The rate is limited to 0.001% of the full
scale range/second to 10% of the full scale range/second.
] / [Control] menu. The rate setpoint sets the rate of pressure
Figure 7.3.3 - Rate Setpoint
7.3.4 Vent Rate
In the Setup [
pressure will vent when in vent mode. The vent rate can be set within the values shown for the limits
above the keypad and are relative to the full scale range of the primary transducer.
] /[Control] tab, the next to the last button is [Vent Rate]. This is the rate at which the
Figure 7.3.4 - Vent Rate
7.3.5 Vent Limit
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In the Setup [
vent stops and the vent solenoid is opened causing the pressure to vent through the vent port uncon-
trolled. The vent limit can be set within the values shown for the limits above the keypad.
] / [Control] tab, the last button is [Vent Limit]. This is the pressure at which controlled
Figure 7.3.5 - Vent Limit
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7.4 Remote Tab
The Setup [ ] / [Remote] tab is used to choose the command set that will be used for remote
communication from an external computer, select the IEEE-488 address, congure Ethernet
communication settings and congure serial communications settings. The [Remote] screen has two
pages that can be accessed by pressing the page selection [ ] button. Details about the
remote operation and command sets are given in Section 8, Remote Operation. Information about the
electrical communication connection hardware is given in Section 5.7, Electrical Connections.
7.4.1 Remote Command Set Setup
The [Command Set] button within the Setup [ ] / [Remote] tab provides a place for the operator to
choose which command set that will be used within remote communication software used to remotely
control the function of the CPC8000. When the [Command Set] button is chosen any of the listed
command sets seen in the side bar can be selected. This will immediately change the active command
set enabling the instrument to respond to commands in that set. See Section 8, Remote Operation, for a
list of commands included in each command set. The [Termination Character] button provides an option
for the user to select the desired termination character in the output string of the instrument. In most
cases this can be set to “default” where the instrument automatically choses the termination character
based on the selected command set.
Figure 7.4.1-A - Remote Command Set Setup
Figure 7.4.1-B - Termination Character Setup
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7.4.2 IEEE-488 Address
The [IEEE-488 Address] button within the Setup [ ] / [Remote] tab provides a place for the operator
to set the IEEE-488 Address. When the [IEEE-488 Address] button is pressed the side bar displays the
numeric key pad where an address from 1 to 31 can be entered.
Figure 7.4.2 - IEEE-488 Address
7.4.3 Ethernet Settings
In the Ethernet section of the Setup [ ] / [Remote] tab there are buttons that correspond to Ethernet
parameters. When the button is pressed the numeric key pad or a choice selector will be presented on
the sidebar and an appropriate number or selection can be entered for the respective parameter. With
DHCP turned o, a static IP address can be assigned. If DHCP is turned on and a lease is obtained
successfully, the ethernet parameters are grayed and inactive but show the newly assigned lease. If a
DHCP server fails to respond, DHCP will automatically turn o. Turning DHCP o allows the ethernet
parameters to be edited and a static IP address assigned.
Figure 7.4.3 - Ethernet Settings
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7.4.4 Serial Settings
The “Serial” section in the Setup [ ] / [Remote] tab can be viewed by selecting the page down button
[ ] on the rst page of the [Remote] tab. The Serial setup page has buttons that correspond to serial
communication parameters. When a parameter button is pressed a choice selector will be presented on
the sidebar and an appropriate selection can be entered for the respective parameter. These parameters
should be set up to match your host computer.
Figure 7.4.4 - Serial Settings
7.4.5 USB Device Setting
The USB Device jack is a standard USB Type B receptacle interface used for remote communication. The
USB Driver can be downloaded at http://www.mensor.com/download_software_drivers_en_um.WIKA
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7.5 Applications Tab
Press the [Applications] tab in the Setup [ ] screen and a screen will appear containing various
labeled icons that when pressed access other screens that provide the following functions:
■ Calibration of internal transducers
■ Sequence program configuration
■ Selection of favorites viewable in the main operation screen
■ Setup of the Digital I/O
■ A troubleshooting screen that displays errors
■ An adaptation screen used for performing control adaptation for the regulator
■ A tune screen used for tuning the regulator and viewing regulator characterization
■ An administration screen used to manage passwords
■ A software screen that allows the user to upgrade instrument/regulator software
Figure 7.5 - Applications Tab
7.5.1 Passwords
All the calibration screens ([1 Point Calibration], [2 Point Calibration], [Linearize] and [Head Correction])
are password protected with the “Calibrate Password”. The “Service Password” allows access to the
[Tune], [Admin] and [Software] Screens.
The Default Passwords sent with the instrument are as follows:
Calibrate Password: 123456
Service Password: 987654
Both passwords can be changed and saved in the [Admin] page within the
[Setup] [ ] / [Applications] section.
If the passwords are forgotten, contact Mensor or your local Mensor service center
for instructions to access the protected areas and to reset the passwords.
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Figure 7.5.1 - Applications Tab, Unlocked
7.5.2 Calibration of Internal Transducers
High-End Pressure Controller
CPC8000
The top row of labeled icons in the [Applications] screen are the password protected applications for
calibration of the CPC8000 internal transducers. Calibration can be performed by the owner of the
instrument or sent back to Mensor for a ISO-17025, A2LA accredited calibration.
NOTICE: Each re-calibration at the factory includes a free comprehensive evaluation
of all system parameters. During the rst re-calibration at the Mensor factory a
service le is started in which every calibration and all extra services are recorded.
This section is included for those who wish to calibrate their CPC8000 within their own calibration lab.
Because calibration involves special training and calibration components that are not addressed here,
only personnel qualied in calibration procedures should be allowed to calibrate the CPC8000.
CAUTION! Only qualied personnel should be allowed to calibrate the CPC8000.
!
Caution
A Mensor recommended calibration setup is addressed in Section 7.5.2.4, Calibration Setup. The
CPC8000 pressure reading is automatically adjusted for the eects of temperature and non-linearity
within the calibrated temperature range of 15-45°C. The process is referred to as dynamic compensation
because each reading is adjusted before it is output to the display or to a communication bus. Thus, a
calibrated CPC8000 operated within its temperature band, and with proper zero and span adjustments,
will provide accurate pressure measurements.
The CPC8000 should have the calibration veried periodically to insure its stability. Initially, the recommended period between calibration is 6 months or one year, depending on the range. This period may be
extended as condence is gained in the span stability.
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7.5.2.1 Calibration Environment
For maximum accuracy, allow the CPC8000 to warm up for a minimum of 30 minutes in an ambient
temperature within the compensated range prior to commencing a calibration. In addition the instrument
should be at rest on a stable platform that is free of excessive vibration and shock.
7.5.2.2 Calibration Pressure Standards
Mensor recommends the use of appropriately accurate pressure standards when calibrating this instru-
ment. Such standards should be sucient so that when the techniques of the ISO Guide to the Expression of Accuracy in Measurement (GUM) are applied, the instrument meets its accuracy statements as
required by ISO/IEC 17025:2005, or other applicable standards.
7.5.2.3 Calibration Media
Gas media are required for calibration. The recommended medium is dry nitrogen or clean, dry, instrument air.
7.5.2.4 Calibration Setup
Refer to the calibration setup illustration on the following page (see gure 7.5.2.4 - Calibration Setup).
The illustration shows a typical calibration setup for absolute and gauge pressure instruments.
The ‘Pressure Standard’ is normally a deadweight tester, a precision piston balance or a precision
manometer. The ‘Volume Controller’ refers to a hand operated variable-volume pressure vernier device.
A diaphragm type vacuum gauge is recommended over the gauge tube type of vacuum transducer for
calibrating sub-atmospheric pressures (shown in the illustration under “Setup for Absolute Pressure”). A
vacuum source with a capacity to generate 600 mTorr absolute is recommended.
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CPC8000
PRESSURE
SUPPLY
PRESSURE
STANDARD
CONTROLLER
PRESS
LINE
REGULATOR
VOLUME
SHUT-OFF
VALVES
METERING
VALVE
DIAPHRAGM TYPE
VACUUM GAUGE
VENT
Setup for Absolute Pressure
SHUT-OFF
VALVES
PRESSURE
NOTE: DISCONNECT WHEN VACUUM
GAUGE RANGE IS EXCEEDED
VAC
VENT
VACUUM
MEASURE/CONTROL PORT
Computer
(optional)
RS232, IEEE488, Ethernet, or USB
CPC8000
PRESSURE
SUPPLY
PRESS
PRESSURE
STANDARD
LINE
REGULATOR
VOLUME
CONTROLLER
REF
SHUT-OFF
VALVES
METERING
VALVE
VENT
Setup for Gauge or Differential Pressure
Computer
(optional)
PRESSURE
REFERENCE
VENT
SHUT-OFF
VALVE
MEASURE/CONTROL PORT
ATMOSPHERE
REFERENCE PORT
RS232, IEEE488, Ethernet, or USB
CPC8000
Figure 7.5.2.4 - Calibration Setup
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7.5.2.5 Calibration Adjustment Procedure
There are three methods that can be used to calibrate all of the transducers in the CPC8000. A simple
[1-Point Calibration] can be used to adjust a single point (usually the zero point). A [2-Point Calibration]
extends this capability to adjust two points (usually points close to the Zero and Span). The [Linearize]
calibration provides a way to calibrate and linearize the pressure curve using from 1 to 10 points over
the range of each transducer. The Remote Zero Calibration is similar to the 1-Point Calibration but is not
permanent (does not persist through power cycles).
Procedures for use and interaction with all the calibration screens can be found in the following sections
of this manual:
• 1 Point Calibration — See Section 7.5.2.5.1
• 2 Point Calibration — See Section 7.5.2.5.2
• Linearize Calibration — See Section 7.5.2.5.3
• Head Correction — See Section 7.5.2.5.4
• Remote Zero Calibration — See Section 7.5.2.5.5
When calibrating the CPC8000, adjust for the dierence in level between the
pressure standard and the instrument (head) must be considered. See Section
7.5.2.5.4 to view and adjust the head correction.
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7.5.2.5.1 1-Point Calibration
The 1 Point Calibration screen provides a place to calibrate an internal transducer or the optional barometer using a single pressure point. This is usually done to adjust the zero point of a transducer. The transducer being calibrated is chosen by pressing the [Primary], [Secondary], [Tertiary] or [Barometer] tab at
the bottom of the screen (see gure 7.5.2.5.1 below).
With a gauge transducer the instrument is simply vented using the [Vent] button and, after a stable
pressure is seen, 0 (zero) is entered by pressing the [New Value] button which will open a numeric key
pad.
With an absolute transducer, the instrument should be put in [Measure] mode with an appropriate high
accuracy reference standard connected to the Measure/Control port on the back of the CPC8000. If a
sub-atmospheric zero point is required, a vacuum pump can be connected to the Measure/Control port
to bring the pressure down to a value closer to absolute zero. Mensor recommends a value greater than
or equal to 600 mtorr. The value for the absolute pressure reading from the reference standard should be
recorded by pressing the [New Value] button.
Figure 7.5.2.5.1 - 1 Point Calibration
A certicate number can be entered by pressing the [certicate] button. The date can be entered by
pressing the [Date] button. The calibration interval can be viewed and changed by pressing the [Interval]
button.
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7.5.2.5.2 2-Point Calibration
A 2 Point Calibration adjusts both the “zero” (low point) and the “span” (high point) of the active transducer. This is accomplished by interacting with the “2 Point Calibration” screen (see gure 7.5.2.5.2).
Figure 7.5.2.5.2 - 2 Point Calibration
Follow the steps below for a complete 2 Point Calibration:
1. Select a Transducer to calibrate by pressing one of the available transducer tabs at the bottom of the
screen, in this case [Primary] [Secondary], [Tertiary], or [Barometer].
2. Ensure that the head correction is adjusted properly (see Section 7.5.2.5.4).
3. The 2 point calibration screen is accessed through the password protected portion of the Setup
[ ]/ [Applications] area. See Section 7.5.1 for the default password.
4. To calibrate the “low Point”:
• The Measure /Control port of the instrument should be supplied with a suitable, “low point”
pressure (see Section 5.6, Pneumatic Connections, for the port location).
• For a gauge transducer, this low point pressure can be achieved by Pressing the [Vent] button on
the 2 Point calibration screen and wait for the reading to stabilize at, or close to, zero.
• For an absolute transducer a suitable source of vacuum should be applied to the Measure/Control
port along with a high accuracy vacuum standard or a pressure calibration standard should be
connected to the Measure/Control port that can generate and measure a pressure value. In
either case the pressure should be measured at a stable value that is a value between 600 mTorr
absolute and 20% of the selected internal transducer’s span.
• When the pressure is stable the [Reading] button, under the “Actual” label and on the row labeled
“Low Point”, should be pressed. This action accepts the value and it will appear with a green
background where the [Reading] button was.
• Press the [New Value] button and, via the numeric key pad, enter the “true pressure” obtained
from the calibration standard. This value will be (0) zero in the case of a gauge transducer that is
vented, otherwise it should be obtained from the pressure measured by your calibration standard.
After the value has been accepted by pressing the [check] mark on the numeric key pad the value
will appear with a green background where the [New Value] button was. These actions complete
the low point calibration.
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5. To calibrate the”High Point”:
• The “High Point” Calibration is done in a similar way as the “Low Point” but should be performed in
[Measure] mode.
• Place the instrument in Measure mode by pressing the [Measure] button within the 2 point Calibration Screen.
• Supply a pressure to the Measure/Control Port using a pressure standard. This pressure should
be as close as possible to the full scale value of the selected transducer or at least within 20% of
that value. The [Too Low] button will change to a [Reading] button when the pressure reaches an
acceptable range.
• After the pressure stabilizes, select the [Reading] button to accept the instrument’s reading of the
pressure input. The actual reading will appear within a green background where the [Reading]
button was.
• Press the [New Value] button and enter the “true pressure”. This value is obtained from the
pressure measured by the calibration standard. After the value has been accepted by pressing the
check [ ] mark on the numeric key pad, the value will appear with a green background where
the [New Value] button was. These actions completes the High Point calibration.
• The [Save] button will now be active, press it to store the values in the transducer.
7.5.2.5.3 Linearize
The [Linearize] application (see gure 7.5.2.5.3a) provides a place to record [As Found] calibration data
and to linearize each internal transducer in the CPC8000 using that data. An “as found calibration” can
be performed by connecting a suitable pressure standard to the Measure/Control port, placing the instru-
ment in [Measure] mode and supplying all 11 pressure points across the complete range of the transducer being calibrated. The record of the pressures generated or measured by the pressure standard
and the corresponding reading from the instrument’s transducer can be recorded and transcribed into the
[Linearize] / [As Found] screen. The screen is accessed by pressing the [As Found] button in the {Linearize] screen.
Figure 7.5.2.5.3a - Linearize / As Found
In the [Linearize] / [As Found] screen choose the transducer to be linearized by pressing the [Primary],
[Secondary], [Tertiary], or [Barometer] button. Pressure test points generated by the reference standard
are entered in the column labeled “Reference”; each of the corresponding readings from the instrument’s
transducer should be entered into the column labeled “Actual”. To enter readings, simply press the corre-
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sponding point in the “Reference” or “Actual” columns and a data entry keypad will appear on the side
bar. Enter and accept the point using the key pad and check [ ]. Pressing the [Save] button linearizes
the internal transducer based on the “As Found” data entered.
Linearization can also be accomplished for each transducer in a “live Calibration” by pressing the
[Linearize] / [Live Cal] button. The Live Cal allows the calibration technician to perform the calibration and
linearization for each transducer in a more direct way. In the Live Cal, the reference standard is connected
to the Measure/Control port and the CPC8000 is placed in Measure mode. Choose the transducer
to be tested by pressing the [Primary], [Secondary], [Tertiary], or [Barometer] button. The reference
pressure generated by the standard is recorded in the “Reference” column for each point. The reading
of the internal transducer for each pressure point can be seen directly in the “Reading” window. Pressing
the corresponding point under the “Actual” column will accept that reading into that point. Subsequent
pressure points generated by the pressure standard are accepted and recorded in the same way. After
all points are entered, press the [Save] button to linearize the internal transducer based on the “Live Cal”
data.
Figure 7.5.2.5.3b - Live Cal
At any time the [Factory Cal] button can be pressed to revert back to the factory calibration.
The Reference points and Actual points can also be sent over the remote bus for automated transducer
linearizations. First ensure the instrument is not in Autorange by sending “Sensor <n>” where <n> is
the transducer you wish to linearize, or by bringing up the Linearization screen from the Applications
menu (this automatically takes the CPC8000 out of autorange). Set each reference pressure with the
command “Desiredpress <n>,<pressure>” where <n> is the 0th based index. “Desiredpress 0,0” will
set the 1st Reference point’s value to 0. “Desiredpress 1,1.5” will set the 2nd reference point to 1.5, etc.
Each subsequent reference point must be greater in value than the previous point. It is advised to send
all of your Reference points rst before proceeding. Use your reference (e.g. CPB6000) to control the
pressure on the measure port to the Reference/desired pressure. Then send the pressure reading over
the bus with the command “Actualpress <n>,<reading>” where <n> is the 0th based index. This reading
should be within +/- 1%FS of the Reference point. Using Figure 7.5.2.5.3a for example, if you have sent
“Desiredpress 3,1209.0”, you would send “Actualpress 3,<reading>” where <reading> must be between
1168.70 and 1249.30. Send each of the 11 readings with the “Actualpress” command and then send
“Calculate_as_found_linearity” and then “Save_linearity”. Your active transducer linearization is now
complete.
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7.5.2.5.4 Head Correction (password protected)
The Setup [ ] / [Applications] / [Head Correction] screen is the place to enter parameters that aect
the oset that occurs when the device is being calibrated and located at a dierent level (elevation)
compared to the transducer inside of the CPC8000. Touching any of the active buttons in this screen will
activate the number key pad. Each of the four rows in gure 7.5.2.5.4 represent a dierent parameter in
the head correction calculation. In the [Height (INST-DUT)] row, the level of the Device Under Test (DUT)
should be subtracted from the instrument reference point (INST) and entered. The gas density used
within the calibration system, the gas temperature, and the local gravity should be entered in the subse-
quent elds. The default height is zero (0) indicating that there is no head correction applied. [English] or
[Metric] units can be chosen be pressing the related button.
Reference point (INST)
Figure 7.5.2.5.4 - Head Correction Screen
7.5.2.5.5 Remote Zero Calibration
There are two types of zeros that may be applied. The rst type is a zero that applies to the transducer
and the second type is a zero that applies only when the transducer is in an emulated pressure mode
(e.g. absolute emulation with a native gauge, or gauge emulation with a native absolute). The emulation mode zero is not saved/stored to the transducer, and is disabled when you switch back to the native
mode and re-enabled when you switch to the emulated mode. This way, an absolute transducer may be
zeroed in gauge emulation without it aecting the absolute mode’s reading. Clearing the emulation zero,
by sending “ZERO ?” when in emulation mode, does not reset the native zero. Clearing the native zero,
by sending “ZERO ?” when in native mode, clears both the native and the emulation zero. Typically it is
used to set a daily zero as barometric pressure changes but can be used to correct at any measured
value. There are several commands that can set the zero for the transducers. In the Mensor command set
they are “ZERO” and “AUTOZERO” and require “CALDISABLE” to be turned o. In the SCPI command
set they are “CAL:PRES[R]:ZERO” and “CAL:ZERO:RUN” and do not require CALDISABLE to be turned
o.
“ZERO” will set the zero for the currently active transducer. It is advised to be in vent mode and at atmospheric ambient pressure. “CAL:PRES[R]:ZERO” works the same as “ZERO” except you can specify
which transducer you wish to zero. If Sensor 1 is active, the protection solenoids for Sensors 2 and 3 (if
present) are enabled. This means there could be trapped air between the solenoid and transducer that
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could be dierent than ambient atmosphere pressure, even if vented. When specifying the transducer
with “CAL:PRES[R]:ZERO”, it is advised to be in autorange and vent mode, or to have the target trans-
ducer active and in vent mode.
“AUTOZERO” places the instrument in vent, sets the range to autorange if there is more than one
transducer present and waits for the pressure reading to become stable. If the pressure reading is
not stable within 180 seconds, an error will be generated and the autozero sequence will abort. The
autozero routine then sets the zero to 0 for each transducer present. The autozero routine will return the
instrument to the intial conguration (active transducer/autorange and measure type) when complete.
“CAL:ZERO:RUN” works the same as “AUTOZERO” except it does not require CALDISABLE to be
turned o. Only native gauge transducers, or absolute transducers with a barometer can be zeroed with
AUTOZERO/CAL:ZERO:RUN.
While zeroing, the screen is locked (KEYLOCK ON) so that the operator cannot change the conguration of the instrument. After the zeroing is complete, KEYLOCK is returned to its pre-zeroing state. If you
zero multiple transducers with the “ZERO” or “CAL:PRES:ZERO” commands, please allow approx. 10
seconds inbetween zeroing commands to allow the previous zero to complete. The zero oset can be
queried with “ZERO?/CAL:PRES[R]:ZERO?” and cleared with “ZERO ?”. There is not a SCPI command
to clear the zero.
7.5.2.5.6 Programs
The Setup [ ] / [Applications] / [Programs] screen is used to create, view and edit programs that
are used to automatically run a sequence of commands within the CPC8000. There are two tabs at the
bottom of the Program screen shown in gure 7.5.2.5.6a. The Display tab provides a place to view each
program or add a new one. Pressing the program label (program selection button) at the top left will allow
selection of predened programs from the side bar plus a set of blank labels where new programs can be
entered.
Figure 7.5.2.5.6a - Programs
With the [Edit] tab selected (gure 7.5.2.5.6b) the operator can edit existing programs or create steps
in new ones. Pressing a Command or Data point will present the available commands, or a data entry
selections in the side bar. The [Insert] and [Delete] buttons allow insertion and deletion of lines. Selec-
tion of commands and data in each sequential line will create a draft of resulting command sequence in
the selected program, upon exiting the edit mode with the back button [ ] the instrument will ask
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“Replace old values?’. Pressing the [ ] will accept the changes, pressing the [ ] will revert back to
the old program. A list of available commands, data values and their functions are listed in table 7.5.2.5.6.
Figure 7.5.2.5.6b - Programs
Table 7.5.2.5.6 - Sequence Commands
Command Function (data selection)
DELAY Delays for time = 1 to 3600 seconds (Numerical Entry)
MODE Sets the control mode (Measure, Control or Vent)
PTYPE Sets the pressure type (Gauge or Absolute)
RSETPT Sets the rate setpoint in current units (Numerical Entry)
RUNITS Sets the rate denominator time unit (min or sec)
SENSOR Sets the active transducer (1, 2 or 3)
SEQSTART Starts the sequence from the beginning (None)
SETPOINT Sets the control setpoint for the instrument (Numerical Entry)
SETPOINT% Sets the control setpoint in % of current range (Numerical Entry)
WAIT Waits for a manual input or stable condition (Stable or Input)
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7.5.2.5.7 Favorites
The Setup [ ] / [Applications] / [Favorites] screen is used to select programs that will appear in the
main screen when the Favorites [ ] icon is pressed. The current list of favorites is shown in gure
7.5.2.5.7 on the left. Press one of these and then press the available programs on the right to update the
current favorites list with that program.
Figure 7.5.2.5.7 - Favorites
7.5.2.5.8 Digital I/O
The Setup [
tions or actions to the digital inputs and the digital outputs, the default screen will show all inputs and
outputs turned o.
In gure 7.5.2.5.8a Digital I/O [Input 1], [Input 2] and [Input 3] are assigned to the [Measure], [Control]
and [Vent] modes respectively. When a digital signal (switch closure) is sent to the “1”, “2”, or “3” input
terminal on the back panel of the instrument the instrument mode will change to “Measure”, “Control’ or
“Vent”. Each input can be assigned to one of the choices listed on the right by pressing the input then the
choice. [ Keylock ] will lock out the touch screen interface preventing local operation and [Start] will start
the most recent program selected in Favorites [ ] menu.
] / {Applications] / [Digital I/O] screen provides a place for the operator to assign condi-
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Figure 7.5.2.5.8a - Digital Input
In gure 7.5.2.5.8b Output 1 (one) is assigned to the [Vent] mode of the instrument. Output 1 will be
energized when the CPC8000 is in Vent mode. Each output can be assigned to one of the choices listed
on the right by pressing the output and then the choice. Each output switch will be energized when
the assigned instrument mode is active. When the mode is inactive the assigned output switch will be
de-energized. The “Pump” choice indicates that the regulator requires a vacuum pump to be on in order
to control to a sub-atmospheric pressure. The pump output is used to turn on or o a vacuum pump as
needed. See Section 5.7, Electrical & Communication Connections for pinout description.
Figure 7.5.2.5.8b - Digital Output
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7.5.2.5.9 Troubleshoot
The Setup [
may have occurred. Figure 7.5.2.5.9 below gives an indication that the CPC8000 access door has been
opened. Once the errors have been viewed in this screen, they are cleared. The [Remote
tab shows communication send/receive messages that have been made through one of the remote
communication ports and is helpful in de-bugging remote control software programs.
] / {Applications] / [Troubleshoot] screen provides a list of internal or remote errors that
Figure 7.5.2.5.9 - Troubleshoot
7.5.2.5.10 Adaptation
Figure 7.5.2.5.10 - Control Adaptation Screen
Pressure Min: The minimum pressure the Needle Valve Regulator (NVR) will be characterized for. This
value may not be changed.
Pressure Max: The maximum pressure the NVR will be characterized for. This value must be set to 10%
below the supply pressure connected to the supply port of the instrument.
Example: Supply pressure = 1650 psi
Pressure Max should be set to 1650 / 1.1 = 1500 psi
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!
Caution
!
Caution
Gain Inlet Position: Supply needle valve position during the adaptation test. Setting this value higher will
make the test take less time, as the valve will be opened more. Setting this value lower will close the valve
more during the test, causing the ow rate through the valve to be less and may allow for a better charac-
terization of the valve, and better performance.
Gain Outlet Position: Exhaust needle valve position during the adaptation test. Setting this value lower
(more negative) will make the test take less time, as the valve will be opened more. Setting this value
lower will close the valve more during the test, causing the ow rate through the valve to be less and may
allow for a better characterization of the valve, and better performance.
[Start]: Performs the control adaptation test, changing the pressure in the instrument from the pressure
minimum to the pressure maximum, then back down to the pressure minimum. Upon successfull comple-
tion, the status box will display “Complete”.
CAUTION: It is recommended to not set the pressure max value below 50% of the
maximum pressure range of the primary transducer.
CAUTION: The control upper limit will be updated to match the pressure max value. After
characterizing an NVR for a certain range, the control upper limit should not be set higher
than this amount.
[Cancel/Abort]: Performs a controlled vent back to atmospheric pressure and stops the control adaptation test.
CAUTION: If an emergency vent of the system is required for any reason, press the
!
Caution
[Restore Factory]: Loads all of the factory settings back into the instrument.
power button and turn o the instrument.
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7.5.2.5.11 Tune
The Tune screen is password protected and can be accessed with the service password (see section
7.5.1, Passwords).
The Setup [ ] / [Applications] / [Adaptation] tab and its sub tabs (Seal Point] [Charac-
terize], [Linearity Graphs] and [Gain Test] should only be used with close supervision
!
Caution
from Mensor Customer Service. Changing parameters within this section will change
the regulator response and may cause the CPC8000 to fail to meet control specica-
tions or output pressure that could damage externally connected instruments.
Figure 7.5.2.5.11a - Adaptation Coecients Screen
Figure 7.5.2.5.11b - Seal Point Screen
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Figure 7.5.2.5.11c - Characterize Screen
CPC8000
Figure 7.5.2.5.11d - Linearity Graphs Screen
Figure 7.5.2.5.11e - Gain Test Screen showing graph for Control Adaptation
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7.5.2.5.12 Admin
The Setup [ ] [Applications] [Admin] screen has a place to change the Calibration and Service
passwords and save congurations.
7.5.2.5.12.1 Change Password
Press the [Change Password...Calibrate] button to enter a new password, and then accept by pressing
the Check [ ] button. The same procedure applies to the [Change Password ...Service] button.
Figure 7.5.2.5.12.1 - Change Password
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7.5.2.5.13 Software Upgrade
Choose the Software application [ ] when upgrading instrument software from a USB drive.
Figure 7.5.2.5.13 - Software
Instrument Software: Displays the current software on the controller. If you have a USB drive in the front
or rear panel, you will be able to select this button. It will show you the available software versions that are
on the USB drive.
Copy Programs to USB: This button will copy the programs from the CPC8000 programs application to
the USB drive and store them in the root directory in a folder named “seq.” Each program will be stored
within that folder as a .txt le.
Load Programs from USB: This button will load the programs that are stored on the USB drive to the
CPC8000 and overwrite any current programs that are on the device.
Regulator Software: This will display the current version of regulator software. When selected, a list of
regulator versions will be available for installation if they are on the USB drive.
Remove USB Device: This will safely unmount the USB drive.
Status: Displays whether or not a USB drive is available.
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7.6 Info Tab
After the instrument has been powered on and the main screen is displayed press the Setup [
and then press the [Info] tab. Information displayed will be the Mensor contact address information, the
instrument’s serial number, rmware version, a list of the integrated transducers and other information.
Figure 7.6 - Info Tab
] key
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8. Remote Operation
8.1 Software/Functions
When the instrument is turned on it takes about 30 seconds to complete the initialization. The BIOS
routines test the system CPU board, then the operating system. The system will go through software and
hardware initialization. The following hardware/software is initialized:
Transducers: The system is scanned for installed transducers and all operating transducers are initialized.
The transducer(s) RAM data is transferred to system RAM where appropriate.
■ GPIB: The GPIB board is initialized as a talker/listener.
■ Units: The scale factors for percent full scale and counts are calculated.
■ Serial: The external serial port is initialized.
■ Valves: The pressure control algorithm is initialized.
■ Options: Any optional hardware/software is initialized.
■ Interrupts: Interrupt vectors are loaded and enabled.
After initialization, the program enters a polled loop.
The proprietary calibration constants and current settings are stored in a non-volatile device.
8.2 Remote Command Set
This remote command set is the default set available on the CPC8000. All commands must be
terminated with a <CR> and/or a <LF>.
A query command ends with a ? for queries. The data column represents the response of the CPC8000.
All response strings begin either with a space character or an “E” representing that there is an error in the
error queue. All response strings are terminated with a <CR> and a <LF>. The error queue holds the last
10 errors identied.
Pressure readings are returned in exponential notation in a format according to the OUTFORM command
as follows:
1. <sp> pressure value <cr><lf>
2. <sp> pressure, units, mode <cr><lf>
3. <sp> pressure, pressure rate <cr><lf>
4. <sp> pressure, minimum peak, maximum peak<cr><lf>
5. <sp> pressure, active sensor (P or S), active turndown (1-4)<cr><lf>
6. <sp> pressure, control point, “stable” or “slewing”<cr><lf>
7. <sp> pressure, “no barometer” or baro reading <cr><lf>
For all commands (no ?), the data column represents the required parameters to be sent to the CPC8000
following the string in the command column. Any command that requires multiple parameters must have
the parameters separated by commas.
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Table 8.2 - Mensor Command Set
Command/Query Data Function/Response
? See Section 8.2 Remote
Command Set
Absolute? <sp>YES or NO<cr><lf> Returns if the primary transducer is native
Acquire? 15 char string.
Ex:
Acquire? Test_stand_1
Returns:
<sp>(YES or NO), CCC…
CCCcr><lf>
Actualpress <n>,<f> Used for a linearity calibration x. Sets the
Actualpress?
<sp><n>
Address 0-31 Sets the GPIB Address.
Address? <sp> nn <cr><lf> Returns the GPIB Address.
All? <sp>+n.nnnnnE+nn,…,
Asset_tag 16 char string General purpose string for customer use.
Asset_tag? <sp>ssssssssssssssss<cr><lf> Return customer asset tag string.
Autorange ON or OFF Sets whether the autorange function is
Autorange? <sp>(ON or OFF)<cr><lf> Returns whether the autorange function is
Autozero none Re-zero all the ranges. These adjust-
Autozero? <sp>S,T,X,X<cr><lf> Returns autozero data where S represents
<sp>+n.nnnnnE+nn<cr><lf> Returns the actual transducer pressure for
+n.nnnnnE+nn <cr><lf>
Returns data per the current output format.
absolute
This command is used when multiple
computers would like to control the instrument.
Yes if acquisition is successful.
No if instrument is being controlled with
another computer.
CCC… = name of controlling computer.
See: Release? and Unlock
internal transducer’s pressure for segment
n. The value at segment n must be between
the values of segment n-1 and n+1. End
points must be within 1% of the minimum
and maximum of the range’s span.
See “Calculate_as_found_linearity”
the specied segment n
Returns pressure readings of all transduc-
ers on the active channel, including the
barometer
enabled or disabled
enabled or disabled.
ments are not password protected and
are not saved through power cycles. This
command takes approximately 60 seconds
but may take longer depending on the time
to become stable. See Section 7.5.2.5.5,
Remote Zero Calibration.
state (0 = complete, 1 = local autozero, 2 =
remote autozero), T represents the estimated time to complete in seconds, and x is a
(0) character since this data location is not
used at this time.
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Autozeroabort none Aborts autozero. Any transducers that have
been zeroed will not revert to previous zero
osets.
Baro? <sp>+n.nnnnnE+nn<cr><lf> Returns reading from barometric transducer
or “NO BAROMETER” if one isn’t installed.
Baroid? <sp>Mensor,SN XXXXXX,
VN.NN<cr><lf>
Barocaldisable YES,NO Not used, kept for backwards compatibility.
Barocaldisable? <sp>(YES or NO)<cr><lf> Not used, kept for backwards compatibility.
Brightness 0-100 Set the brightness of the screen from 0 to
Brightness? <sp>nn<cr><lf> Get the brightness of the screen
Calculate_as_
found_linearity
Caldisable YES,NO Sets whether or not calibration of the active
Caldisable? <sp>(YES or NO)<cr><lf> Returns whether or not calibration of the
Cerr none Clears the error queue.
Chanfunc Press, peak, rate, rate setpt,
dio, units
Chanfunc? <sp>CCCCC…<cr><lf> Returns the secondary alternate function
Chanfunc2 Press, peak rate, rate setpt,
dio, units
Chanfunc2? <sp>CCCCC…<cr><lf> Returns the secondary alternate function
Chanfunc3 Press, peak rate, rate setpt,
dio, units
Chanfunc3? <sp>CCCCC…<cr><lf> Returns the tertiary alternate function mode.
Cmdset Mensor, SCPI Activates remote command set for instru-
Cmdset? <sp><CCCCCC><cr><lf> Returns active command set identier.
Control Instrument placed in Control Mode
Control? <sp>(YES or NO)<cr><lf> Returns YES if instrument is in control. No if
Crate Slow, Medium, Fast, Variable Sets the control rate. Variable mode is a
Crate? <sp>CCCCCC<cr><lf> Returns the control rate – CCCC is variable
Ctype? Returns the type of regulator.
Returns identication string for the barom-
eter.
100%
Calculate linearity slopes and intercepts
from true/actual pressures, and loads the
linearity correction coecients to the transducer. See “ActualPress” and “TruePress”.
transducer is disabled.
active transducer is disabled.
Sets the secondary display function mode,
works identical to Chanfunc2 (kept for
backwards compatibility).
mode, works identical to Chanfunc2 (kept
for backwards compatibility).
Sets the secondary display function mode.
mode.
Sets the tertiary display function mode.
ment emulation modes.
otherwise.
predetermined user-dened rate setpt.
in length and corresponds to the param-
eters for the CRATE command.
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Decpt? <sp>n<cr><lf> Returns the number of decimal points.
(See Resolution)
Default none Sets the default values.
DHCP ON or OFF If no DHCP server is found when DHCP is
turned on, DHCP will be turned o.
DHCP? <sp>(YES or NO)<cr><lf> Returns current status of DHCP.
DIO 2 or 0 2 turns on the rst digital output pin, 0 turns
it o.
DIO? <sp>n<cr><lf> Returns status of the rst input and output
pin. Bit0 = input’s status, Bit1 = output’s
status.
DOUTFUNC <n><sp><CCCCCC><cr><lf> Sets the function for output pin <n> to
NONE, STABLE, PUMP, MEASURE,
CONTROL, or VENT.
DOUTFUNC? <n> <sp><CCCCCC><cr><lf> Returns the function for output pin <n>.
DINFUNC <n><sp><CCCCCC> Sets the function for input pin <n> to NONE,
MEASURE, CONTROL, VENT, KEYLOCK,
or START.
DINFUNC? <n> <sp><CCCCCC><cr><lf> Returns the function for output pin <n>.
DOUTSTATE <n><sp>HIGH/LOW/1/0> Turns output pin <n> to high or low. Sets the
function for that pin to “None”.
DIOSTATE? <sp><n><cr><lf> Bit 0-7 is the status of the input bits. Bit 8-15
are the status of the output bits. Returns an
integer between 0 and 65536.
DOC mm/dd/yyyy Sets the date of cal for active transducer.
DOC? <sp>mm/dd/yyyy<cr><lf> Returns the date of cal for active transducer.
DOM? <sp> mm/dd/yyyy<cr><lf> Returns the date of manufacture.
Error? <sp> text description <cr><lf> Returns the next error in the error queue.
Errorno? <sp>Enn-text<cr><lf> Returns pcs400 error code and text.
Filter O, Low, Normal, High Sets the reading lter 0, 80%, 92%, 95%.
Filter? <sp> (lter)<cr><lf> Returns the reading lter.
FilterWin nnn Set the lter window as a oating point
value in pressure
FilterWin? <sp>+n.nnnnnE+nn<cr><lf> Returns the lter window
Gasdensity Value in lb/cuft or “NITRO-
GEN” or “DRY AIR”
Gasdensity? <sp>+n.nnnnnE+nn<cr><lf> Gets the head pressure gas density in lb/cuft.
Gastemp Value in degrees F Sets the head pressure gas temperature.
Gastemp? <sp>+n.nnnnnE+nn<cr><lf> Gets the head pressure gas temperature.
Gateway nnn.nnn.nnn.nnn Sets the Ethernet gateway address.
Gateway? <sp>nnn.nnn.nnn.
nnn<cr><lf>
Gauge? <sp>YES or NO<cr><lf> Returns if the primary transducer is native
Sets the head pressure gas density in lb/cuft.
Gets the Ethernet gateway address.
gauge
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Height value in inches Sets the head pressure height in inches.
Height? <sp>+n.nnnnnE+nn<cr><lf> Gets the head pressure height in inches.
Id? <sp>MENSOR, CPC8000,
ssssss,v.v.vv<cr><lf>
IP nnn.nnn.nnn.nnn Sets the IP address of the instrument.
IP? <sp>nnn.nnn.nnn.nnn<cr><lf> Returns the IP address of the instrument.
Keylock YES or NO Locks or unlocks the entire touch screen.
Keylock? <sp>(YES or NO)<cr><lf> Returns Yes or No.
Language CCCCCCC Set the active display language. Accepts
Language? <sp>CCCCCC,(ABBREV)<cr>
<lf>
LLimit nnn Alias for “Lowerlimit”. See Lowerlimit
LLimit? <sp>n.nnnnnE+nn<cr><lf> Alias for “Lowerlimit?”. See LowerLimit?
List? <sp>Pri,1;Sec,1;Ter,1;Bar,1<
cr><lf>
Listcal? <sp>PRI,{sn},1,{mmddyy};SE
C,{sn},1,{mmddyy},TER,{sn},
1,{mmddyy},BAR,{sn},{mmdd
yy}<cr><lf>
Listrange? PRI,1,min,max;SEC,1,
min,max;TER,1,
min,max;Bar,min,max
Localgravity Value in ft/s^2 Sets the local gravity in feet/sec^2
Localgravity? <sp>+n.nnnnnE+nn<cr><lf> Returns the local gravity in feet/sec^2
Loudness nnn Set the speaker volume
Loudness? <sp>n.nnnnnE+nn<cr><lf> Returns the speaker volume from 0 to 100%
LowerLimit nnn Sets the lower control limit for the instru-
LowerLimit? <sp>+n.nnnnnE+nn<cr><lf> Returns the lower control limit for the instru-
Lowovershoot
Lowovershoot? <sp>YES<cr><lf> Returns YES
Measure None Instrument placed in Measure Mode
Measure? <sp>(YES or No)<cr><lf> Returns YES if instrument is in measure. NO
Ssssss is the serial number, v.v.vv is the
CPC8000 software version.
the following: ENGL, ENGL US, ENGL CA,
ENGL GB, GERM DE, GERM SZ, DEUT
DE, DEUT SZ, FREN, FREN CA, FREN SZ,
FREN CH, FRAN , FRAN CA, FRAN SZ,
FRAN CH, SPAN MX, SPAN SP, SPAN LAT,
SPAN AL,ESPA, ESPA MX, ESPA SP, ESPA
LAT, ESPA AL, PORT, PORT PT, PORT BZ,
PORT BR, ITAL, POL, RUS, CHI, JAP, KOR.
Each language may also be completely
spelled out, i.e. ENGLISH instead of ENGL
Returns the active display language, i.e.
“ENGLISH (US)” or “DEUTSCH (DE)”
Returns list of available transducers and turndowns. Turndowns are obsolete and therefore
set to 1 for backwards compatibility.
Returns list of available transducers and
turndowns’ calibration dates.
Returns the ranges of the installed transducers.
ment
ment in current units.
Does not apply to the CPC8000
if otherwise
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Mode STANDBY, MEASURE,
CONTROL, VENT
Mode? <sp>XXXXXX<cr><lf> Returns the operation mode
Netmask nnn.nnn.nnn.nnn Sets the Ethernet network mask
Netmask? <sp>nnn.nnn.nnn.
nnn<cr><lf>
NVR.ADAPTATION <sp>(START,STOP,SLOW,FA
ST,CANCEL,0,1)<cr><lf>
NVR.ADAPTATION?
Outform 1 to 7 Sets the output format (see Section 8.2)
Outform? <sp>X<cr><lf> Returns the output format
Overrange Set the overrange percentage
Overrange? <sp>+n.nnnnnE+nn<cr><lf> Get the overrange percentage
Peakmax? <sp>+n.nnnnnE+nn<cr><lf> Returns the maximum pressure since
Peakmin? <sp>+n.nnnnnE+nn<cr><lf> Returns the minimum pressure since
Peakreset None Resets the peak values.
Port nnnnnn Sets the Ethernet port of the instrument
Port? <sp>nnnnn<cr><lf> Returns the Ethernet port of the instrument
Ptype Absolute or Gauge Sets the instrument pressure type. Emula-
Ptype? <sp>CCCCC<cr><lf> Returns “GAUGE”, “GAUGE EMULATION”,
Range? <sp>+n.nnnnnE+nn<cr><lf> Alias for “RangeMax?”. See RangeMax?
RangeMax? <sp>+n.nnnnnE+nn<cr><lf> Returns the maximum range of the active
RangeMin? <sp>+n.nnnnnE+nn<cr><lf> Returns the minimum range of the active
Rate? <sp>+n.nnnnnE+nn<cr><lf> Returns the rate reading of the instrument in
<sp>0 to -6<cr><lf> Returns status of controller adaption routine
Sets the operation mode
Gets the Ethernet network mask
Starts or stops controller adaption routine.
Note: There is no dierence between
slow and fast. Both start the same control-
ler adaptation process, and are only for
backwards compatibility.
where the response is:
0, OK
-1, active
-2, leakage or no pressure supply
-3, pressure supply too high or wrong mode
-4, default during controller adaption
-5, calculation fault
-6, abandoned process
peakreset was sent.
peakreset was sent.
tion only works if the optional barometric
transducer is installed.
“ABSOLUTE”, or “ABSOLUTE EMULATION”. Returns the current pressure type
and notes if it is an emulated pressure type.
transducer in the current units.
transducer in the current units.
current units/current time unit.
See Runits.
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Rdecpt? <sp>n<cr><lf> Returns the number of rate decimal points.
See Resolution
Reference {EXTVAC or ATM} Not used, kept for backwards compatibility
Reference? <sp>{EXTVAC or
ATM}<cr><lf>
Release? 15 char string.
Ex: Release? Test_stand_1
Returns: <sp>(YES or NO),
CCC…CCC<cr><lf>
Resolution <n> Sets the number of signicant digits.
Resolution? <sp>n<cr><lf> Returns the number of signicant digits.
Rlter Value in % Sets the % of the rate lter.
Rlter? <sp>+n.nnnnnE+nn<cr><lf> Returns the rate lter.
RFilterWin nnn Set the rate lter window as a oating point
RFilterWin? <sp>+n.nnnnnE+nn<cr><lf> Returns the rate lter window
RStable? YES or NO
RStableTime 0 to 65535 Sets the rate stable time to the number of
RStableTime? <sp>XXXXXXX<cr><lf> Returns the rate stable time
RStableWin nnn Alias for “RStableWindow”. See
RStableWin? <sp>+n.nnnnnE+nn<cr><lf> Alias for “RStableWindow?”. See
RStableWindow nnn Set the rate stable window as a %FS/
RStableWindow? <sp>+n.nnnnnE+nn<cr><lf> Returns the rate stable window
Rsetpt Value in current units Sets the rate setpoint.
Rsetpt? <sp>+n.nnnnnE+nn<cr><lf> Returns the rate setpoint.
Runits Sec, min, hr Sets the rate time unit.
Not used, kept for backwards compatibility
This command is used to release control
of the instrument in a multiple computer
environment.
Yes if release is successful
No if instrument is being controlled with
another computer
CCC… = name of controlling computer or
AVAILABLE
See: Acquire? and Unlock
See decpt
See decpt
value in pressure
seconds specied
RStableWindow
RStableWindow?
second
Runits? <sp>XXXX<cr><lf> Returns the rate time unit.
RLLimit nnn Alias for “RLowerLimit”. See RLowerLimit
RLLimit? <sp>n.nnnnnE+nn<cr><lf> Alias for “RLowerLimit?”. See RLowerLimit?
RLowerLimit nnn Set the rate lower control limit
RLowerLimit? <sp>n.nnnnnE+nn<cr><lf> Returns the rate lower control limit
RULimit nnn Alias for “RUpperLimit”. See RUpperLimit
RULimit? <sp>n.nnnnnE+nn<cr><lf> Alias for “RUpperLimit?”. See RUpper-
Limit?
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RUpperLimit nnn Set the rate upper control limit
RUpperLimit? <sp>n.nnnnnE+nn<cr><lf> Returns the rate upper control limit
Rwindow Value in current units Sets rate exponential lter window
Rwindow? <sp>n.nnnnnE+nn<cr><lf> Returns rate exponential lter window
Save_cal Save calibration values.
Save_linearity Save linearity values.
Sbaud 9600, 19200, 38400, 57600,
115200
Sbaud? <sp>XXXX<cr><lf> Returns the serial baud data.
Sdata 7 or 8 Sets the serial data bits.
Sdata? <sp>n<cr><lf> Returns the serial data bits number.
Sensor 1, 2, 3, or PRIMARY,
SECONDARY, TERTIARY
Sensor? <sp>XXXXXXX,1<cr><lf> Returns active transducer in long string
Sensorid? <sp><sensor#><sp>ID<sp>M
ENSOR,<sp><model>,<sp><
SN>,<sp>V<version><cr><lf>
Setpoint nnn.nnn Sets the control setpoint for the instrument.
Setpoint? <sp>nnn.nnnnE+nn<cr><lf> Returns the control setpoint in current units
Setpoint% nnn.nnn Sets the control setpoint in %FS of primary
Setpoint%? <sp>nnn.nnnnE+nn<cr><lf> Returns the current setpoint in % of primary
Setpt nnn.nnn Sets the control setpoint for the instrument.
Setpt? <sp>+n.nnnnnE+nn<cr><lf> Returns the control setpoint in current units.
Setpt% nnn.nnn Sets the control setpoint in % of current
Setptpct nnn.nnn Sets the control setpoint in % of current
Setptpct? <sp>+n.nnnnnE+nn<cr><lf> Returns the current setpoint in % of current
Span nnn.nnn (Desired pressure
value)
Span? <sp>+n.nnnnnE+nn<cr><lf> Returns span scale factor for active trans-
Sparity Even, ODD, NONE Sets the serial parity.
Sparity? <sp>CCCC<cr><lf> Returns the serial parity.
Sets the serial baud rate.
Sets the active transducer.
format.
Returns the active transducer’s serial
number and rmware version.
Value must be inside upper and lower limits.
Alias for “Setpt”
transducer range
transducer range. Alias for “Setpt%?”
Value must be inside upper and lower limits
range.
range.
range.
Sets span on active transducer or for ?,
clears previous value, must be > 50% FS
and has a 1% limit. CALDISABLE must be
OFF/NO.
ducer.
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Srqmask Stable,Error or both Sets the CPC8000 to issue a service
request (SRQ) over the IEEE when the
pressure control is stable, or an error
occurs. These are 80 hex and 40 hex
respectively.
Srqmask? <sp>{string}<cr><lf> Returns “stable”, ”error” or “error, stable”
depending on the SRQ.
Sstop 1 or 2 Sets the serial stop bits.
Sstop? <sp>X<cr><lf> Returns the serial stop bits.
Stable? Returns YES if instrument is stable, or NO.
Stabledelay 0 to 65535 Sets the stable time to the number of
seconds specied.
Stabledelay? <sp>XXXXXXX<cr><lf> Returns the stable time.
Stabletime 0 to 65535 Sets the stable time to the number of
seconds specied.
Stabletime? <sp>+n.nnnnnE+nn<cr><lf> Returns the stable time.
StableWin nnn.nnn Sets the stable window as a %FS.
StableWin? <sp>+n.nnnnnE+nn<cr><lf> Returns the stable window.
Standby None Instrument placed in Standby mode
Standby? <sp>(YES or NO)<cr><lf> Returns YES if instrument is in Standby, NO
if otherwise
Step Value inside upper and lower
limits and inside the range of
the active transducer
Step- Jogs the setpoint down one step
Step+ Jogs the setpoint up one step
Step? <sp>+n.nnnnnE+nn<cr><lf> Returns the control step for the instrument
Step% Value in % of current range Sets the control step in % of current range
Steppct Value in % of current range Sets the control step in % of current range
Steppct? <sp>+n.nnnnnE+nn<cr><lf> Returns the current step in % of current range
Ta re ON or OFF Tares current reading to zero. The same tare
Tare? <sp>+n.nnnnnE+nn<cr><lf> Returns the tare value applied to all trans-
Termchar CCC Set the termination character for the active
Termchar? <sp>CCCC<cr><lf> Returns the termination character.
Timeouten ON or OFF Enables the Ethernet timeout
Timeouten? <sp>(YES or NO)<cr><lf> Returns the Ethernet timeout state
Sets the control step size for the instrument
value is applied to all measuring transducers.
ducers in current units.
command set (for example the Mensor
command set will be dierent from the SCPI
command set). Accepts the following:
CRLF, CR, LF, EOI, NONE, DEFAULT
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Timeoutsec nnn Set the Ethernet timeout in seconds, to
automatically close the socket if no activ-
ity has occurred. The default is 172800
seconds (2 days).
Timeoutsec? <sp>nnnnnnn<cr><lf> Returns the Ethernet timeout in seconds
Touchcal Start the touchscreen calibration process
Truepress <n>,<f> Used for a linearity calibration x. Sets the
internal transducer’s pressure for segment
n. The value at segment n must be between
the values of segment n-1 and n+1. End
points must be within 1% of the minimum
and maximum of the range’s span.
See “Calculate_as_found_linearity”
Truepress?<sp><n> <sp>+n.nnnnnE+nn<cr><lf> Returns the reference pressure for the
specied segment n
Units units code or text (See Table
11.4)
Units? <sp>CCCC<cr><lf> Returns the instrument units in a text string
Unitbase1 units code or text (See Table
11.4)
Unitbase1? <sp>CCCC<cr><lf> Returns the user 1 base units in a text
Unitbase2 units code or text (See Table
11.4)
Unitbase2? <sp>CCCC<cr><lf> Returns the user 2 base units in a text
Unitfact1 Multiplier factor Sets the user 1 unit multiplier
Unitfact1? <sp>n.nnnnnE+nn<cr><lf> Returns the user 1 unit multiplier
Unitfact2 Multiplier factor Sets the user 2 unit multiplier
Unitfact2? <sp>n.nnnnnE+nn<cr><lf> Returns the user 2 unit multiplier
ULimit nnn Alias for “Upperlimit”. See Upperlimit
ULimit? <sp>xxxxxxx<cr><lf> Alias for “Upperlimit?”. See Upperlimit?
Unlock None Releases Acquire locks
UpperLimit nnn Sets the upper control limit for the active
UpperLimit? <sp>+n.nnnnnE+nn<cr><lf> Returns the upper control limit for the active
Vent None Instrument placed in Vent Mode
Vent? <sp>(YES or NO)<cr><lf> Returns YES if instrument is in Vent, NO if
Vent_Limit nnn Set the pressure where the vent valve will
Vent_Limit? <sp>+n.nnnnnE+nn<cr><lf> Returns the vent limit in current units.
Vent_Rate nnn Set the controlled vent rate
Sets the instrument engineering units. See
Table 11.4.
Sets the user 1 base engineering units.
Options are psi, bar, pascal.
string
Sets the user 2 base engineering units.
Options are psi, bar, pascal.
string
See Acquire? And Release?
transducer.
transducer.
otherwise
open completely during a controlled vent
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Vent_Rate? <sp>+n.nnnnnE+nn<cr><lf> Returns the vent rate in current units.
WID? <sp>MENSOR,WIKASN,X.
XX.XX<cr><lf>
Window Value in current units Sets the exponential lter window for the
Window? <sp>+n.nnnnnE+nn<cr><lf> Returns the exponential lter window for the
Zero desired pressure or ? Sets zero to set pressure or for ?, clears
Zero? <sp>+n.nnnnnE+nn<cr><lf> Returns zero oset for active transducer
8.3 SCPI WIKA Command Set
Table 8.3 - SCPI Commands
Command or Query Response/Function
Returns manufacturer, instrument’s Wika
serial number, instrument software version
number
active transducer
active transducer
previous value. CALDISABLE must be OFF/
NO. See Section 7.5.2.5.5, Remote Zero
Calibration.
MEASure
[:PRESsure] [R]? Returns the pressure from range R.
:TEMPerature[R]? Returns the temperature from range R.
:RATE[R]? Returns the pressure rate/sec from range R.
:BAROmetric? Returns the barometric pressure.
CALibration
[:PRESsure][R]
:MODE? Returns 1=calibrated or 0=not calibrated.
:DATE? Returns date of cal “MM/DD/YY”
:DATE <i,i,i> Sets date of cal YYYY,MM,DD
:ZERO? Returns zero oset.
:ZERO <n> Sets the zero oset.
(See Section 7.5.2.5.5, Remote Zero Calibration).
:ZERO:RUN Start autozero sequence.
(See Section 7.5.2.5.5, Remote Zero Calibration).
:ZERO:STOP Stop autozero sequence
:ZERO:INITiate? Returns zero status
:ZERO:INITiate Ignored
SENSe
[:PRESsure] [R]
:NAME? Returns transducer name string.
:MODE? Returns pressure type “ABSOLUTE” or “GAUGE”
:MODE ABS | GAUGE Sets the pressure type to absolute or gauge.
:ABS? Returns native transducer type “1” for absolute, ”0” for gauge.
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:RESolution? Returns resolution (oat).
:RANGe
[:UPPer]? Returns the maximum range.
:LOWer? Returns the minimum range.
:Unit
[:NAME]? Returns ASCII units (mixed case).
:VALue? Returns the units conversion factor.
:REFerence
[:HEIGht] <n> Sets the head pressure height.
:HEIGht? Returns the head pressure height.
:MODE? Returns “OFF”, “GAS”, or LIQUID”.
:MODE OFF | GAS | LIQUID Sets the head pressure mode.
:MEDium<n> Sets the medium density.
:MEDium? Returns medium.
:ACTive <n> Sets the active transducer
:ACTive? Returns the active transducer
SYS Tem
:DATE <i,i,i> Not used, kept for backwards compatibility
:DATE? Not used, does not cause an error, does not return a
response.
:TIME <i,i,i> Not used, kept for backwards compatibility
:TIME? Not used, does not cause an error, does not return a
response.
:ERRor[:NEXT]? Return error code, description.
:KLOCk ON | OFF | 1 | 0 Sets the keylock state.
:PRESet Load default values.
:SAVe no function (not needed).
:VERSion? Return SCPI version 1994.0.
TEST
:ELECtronic? Returns “OK”.
:RELay <n>? Returns status of digital output <n>.
:RELay <n> ON | OFF Turns the digital output on or o <n>.
UNIT ( Note: see Table 11.1 Measurement Units)
:NAME <n>? Returns the units string for units code <n>.
:FACTor <n>? Returns the units conversion for units code <n>.
[:PRESsure] bar|mbar|Pa|psi Sets the pressure units.
[:PRESsure]? Returns the pressure units.
:USER
:FACTOR <n>, <f> Sets the multiplier to <f> for user unit <n>
:FACTOR ? <n> Returns the multiplier <f> for user unit <n>
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:BASE <n>, <s> Sets the base engineering units for user unit <n>, options
are psi, bar, pascal.
:BASE? <n> Returns the base engineering units for user unit <n> as a
text string
:INDEX <n> Sets the global remote unit by index number.
:INDEX? Returns the index number.
Index
Unit
0
bar
1
mbar
2
Pa
3
psi
4
atm
5
kp/cm²
6
lbf/ft²
7
kPa
8
cmH2O(4°C)
9
inH2O(4°C)
10
inH2O(20°C)
11
inH2O(60°F)
12
ftH2O(4°C)
13
mmHg(0°C)
14
cmHg(4°C)
15
inHg(0°C)
16
inHg(60°F)
17
% of range
18
user units 1
19
user units 2
CPC8000
OUTPut
:STATe ON/OFF/1/0 ON or 1 = Control OFF or 0 = Measure.
:STATe ? Returns 0 for measure 1 for control.
:MODE MEASure/CONTrol/VENT Sets the mode indicated.
:MODE? Returns the mode string.
:STABle? Returns 1 if stable 0 if not.
:AUTOvent ON/OFF/1/0 Autovent causes the controller to vent when a setpt of 0 is
sent while in gauge or gauge emulation.
:AUTOvent? Returns the autovent state.
:AUTORange ON/OFF/1/0 Turns autorange on or o.
:AUTORange? Returns “ON” or “OFF”.
SOURCE
[:PRESsure]
[:LEVel]
[:IMMediate]
[:AMPLitude] <n> Sets the setpoint.
[:AMPLitude]? Returns the setpoint.
:SLEW <n> Sets the slew rate setpoint in %FS/sec.
:SLEW? Returns the slew rate setpoint.
:TOLerance <n> Sets the stable window in %FS.
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:TOLerance? Returns the stable window in %FS.
CALCulate
:LIMit
:LOWer<n> Sets minimum control limit.
:LOWer? Returns minimum control limit.
:UPPer<n> Sets maximum control limit.
:UPPer? Returns maximum control limit.
:VENT <n> Pressure at which the vent solenoid opens for an uncon-
:VENT? Returns the pressure at which the vent solenoid opens.
:VRATE Sets the rate at which the controlled vent goes to
:VRATE? Returns the rate at which the controlled vent goes to
:SYSTem
:DETECT SLOW/FAST/CANCEL Starts or stops controller adaption routine.
:DETECT? Returns status of controller adaption routine where the
:TARE
:STATe ON/OFF/1/0 Tare the current reading. The same tare value is applied
:STATe ? Returns the tare value.
trolled vent.
atmosphere.
atmosphere.
Note: There is no dierence between slow and fast. Both
start the same controller adaptation process, and are only
for backwards compatibility.
response is:
0, OK
-1, active
-2, leakage or no pressure supply
-3, pressure supply too high or wrong mode
-4, default during controller adaption
-5, calculation fault
-6, abandoned process
to all measuring transducers.
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8.4 SCPI Error Messages and Error Codes
When an error occurs, the error icon in the lower right hand corner of the main screen turns yellow and
becomes a button. When pressed, the error log is shown and all errors are cleared. Note, going to the
error log will put the instrument in measure mode for safety reasons. Error -500 is a pneumatics error
whose message will be dierent depending on the pneumatic error. Error 999 is a general purpose error
which couldn’t be categorized in the pre-dened errors.
Table 8.4 - Error Codes SCPI
Code Error String Returned
0 No error
-101 Undened character
-102 Syntax error
-103 Undened separator
-104 Parameter data type error
-109 Parameter missing
-110 Undened header
-113 Undened command
-114 Parameter out of range
-313 Calibration data not found
-315 Conguration data not found
-350 Errorqueue overow
-410 Query interrupted
-500 Regulator error message
600 Default conguration not found
601 Calibration mode active! Deactivate before setting C0..C3
602 Sensor not available
701 DCS instance not available
702 Create DCS instance failed
703 DCS still active
704 Command currently not allowed
999 General purpose error message
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8.5 Command Emulation
8.5.1 PCS 400 Emulated Commands
Table 8.5 - PCS 400 Emulated Commands
Command Data Response/Function
_pcs4 autorange <value> 0 or 1 1 turns autorange on, 0 = o
_pcs4 autorange? Returns 1 if in autorange, 0 if in range hold
_pcs4 cal a/d Not used, kept for backwards compatibility
_pcs4 cal atm Performs pcs400 1 pt cal
_pcs4 cal span <value> Sets the span of the active transducer to <value>
_pcs4 cal zero <value> Sets the zero of the active transducer to <value>
_pcs4 cal_disable_o Enables zero or span calibrations if previously disabled.
_pcs4 cal_disable_on Prevents zero or span calibrations
_pcs4 ctrl
<value><sp><unitno>
_pcs4 ctrl? Returns the current control point in current engineering units.
_pcs4 ctrlmax<value> Sets maximum control value.
_pcs4 ctrlmax? Returns current maximum control pressure.
_pcs4 ctrlmin<value> Sets minimum control value.
_pcs4 ctrlmin? Returns current minimum control pressure.
_pcs4 emul? Returns ptype emulation mode
_pcs4 default Sets default values into instrument.
_pcs4 err? Returns the error number and description.
_pcs4 exhaustp? Returns exhaust pressure
_psc4 ltersetting Sets the lter %
_pcs4 ltersetting? Returns the lter %
_pcs4 lterwindow Sets the lter window
_pcs4 lterwindow? Returns the lter window
_pcs4 func ctrl
<value><unitno>
_pcs4 func emul Toggles ptype emulation mode
_pcs4 func F1 Toggles ptype emulation mode
_pcs4 func meas Instrument placed in measure mode.
_pcs4 func stby <unitno> Instrument placed in standby mode in <unitno> units
_pcs4 func vent <unitno> Instrument placed in vent mode in <unitno> units
_pcs4 id? Returns instrument ID.
_pcs4 lang PCS2 Sets command set to PCS 200
_pcs4 list? Returns range list
_pcs4 opt? Returns option list (old pcs400 format)
_pcs4 option? Returns option list.
_pcs4 outform<digit> Sets output format.
_pcs4 outform? Returns the current output format.
Sets control value – will take eect immediately if instrument
is in control mode.
Instrument placed in control mode at <value> pressure in
<unitno> units.
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