WIKA CPG2500 User Manual

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Operating Instructions

Digital Pressure Gauge

SERIES CPG 2500

Digital Pressure Gauge Series CPG 2500

PN 0017851001 F

Digital Pressure Gauge

SERIES CPG 2500

This Warning symbol indicates that danger of injury for persons and the environment and/or considerable damage

!(mortal danger, danger of injury) will occur if the respective

safety precautions are not taken.

Warning

This Caution symbol indicates danger for the system and

!material if the respective safety precautions are not taken.

Caution

iThis Notice symbol does not indicate safety notices but information for a better understanding of the facts.

Notice

2	Mensor/WIKA Operating Instructions Series CPG 2500

Digital Pressure Gauge

SERIES CPG 2500

Table of Contents

1.	General Information	7
1.1	Warranty	7
1.2	Important Notice	7
1.3	FCC Radio Frequency Emission Notice	8
1.4	Trademarks and Copyrights	8
1.5	Software License Agreement	8
1.6	Mensor Service Plus	9
1.6.1	After the Warranty	9
1.6.2	Calibration Services	9
1.6.3	Accreditations	9
1.7	Packaging for Shipment	9
2.	Safety Notices	10
2.1	User Responsibiliities	10
2.2	General Safety Notices	10
2.1	Warnings and Caution Notices	11
3.	Product Description	13
3.1	General Description	13
3.2	Features	13
3.3	Front Panel	14
3.4	Display	14
3.5	Chassis Assembly	15
3.6	Turning on the CPG 2500	15
4.	Specifications	17
5.	Installation	19
5.1	Unpacking the Instrument	19
5.2	Dimensions	19
5.3	Mounting	19
5.4	Rear Panel	20
5.5	Pressure Connections	20
5.5.1	Pressure Port	21
5.5.3	Remote Bus Connections	21

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5.6	Power Up	21
6.	Local Operation	23
6.1	General Operation	23
6.2	Keys and Tabs	23
6.3	Display Screen Features	23
6.4	Tool Bar	24
6.4.1	Contact and Version Information Key	24
6.4.2	Language selection Key	24
6.4.3	Main screen view Key	25
6.4.4	Remote setup Key	26
6.4.5	Remote status Key	26
6.5	Channel Frames	26
6.5.1	Presure reading window	26
6.5.2	Channel setup Key	26
6.5.2.1	Display Tab	27
6.5.2.1.1	Adjust Function	27
6.5.2.1.2	Measure Function	27
6.5.2.2	Sensor Tab	28
6.5.2.2.1	Standard Pressure Display Mode	28
6.5.2.2.2	Delta Pressure Display Mode	29
6.5.2.2.2.1	Display Tab (Delta)	29
6.5.2.2.2.2	Sensor Tab (Delta)	30
6.5.2.2.2.3	Adjust Tab (Delta)	30
6.5.2.2.2.4	Data Tab (Delta)	30
6.5.2.3	Adjust Tab	31
6.5.2.3.1	Zero	31
6.5.2.3.2	Head Correction	31
6.5.2.4	Data Tab	32
6.5.3	Pressure Units Key	33
6.5.3.1	English Tab	33
6.5.3.2	Metric Tab	34
6.5.3.3	User units Tab	34

4	Mensor/WIKA Operating Instructions Series CPG 2500

	Digital Pressure Gauge
		SERIES CPG 2500
7.	Remote Operation	35
7.1	Remote Setup	35
7.1.1	Instrument Tab	35
7.1.1.1	Emulation Mode	35
7.1.1.2	Channel	35
7.1.2	Ethernet Tab	36
7.1.3	Serial Tab	37
7.1.3.1	Cable Requirements	37
7.1.3.2	Command and Query Format	38
7.1.3.3	Command Set Definitions	38
7.1.3.4	Output Formats	39
7.1.3.5	Commands and Queries	39
7.1.3.6	Units Command Syntax	44
7.1.3.7	CPG 2500 Error Codes	45
7.1.3.8	Remote Emulation	46
7.1.3.8.1	DPG 2100 Emulated Commands and Queries	46
7.1.3.8.2	Units Command Syntax for DPG 2100 Measurement Units	52
7.1.3.8.3	DPG II Models 14000/15000 Terse Message Set Emulation	54
7.1.3.8.4	General SCPI WIKA Commands	58
7.1.3.8.4.1	Error Messages and Error Codes	60
7.1.4	IEEE-Tab (option)	61
7.1.4.1	GPIB Capability Codes	61
7.1.4.2	Interface Functions	62
7.1.4.3	IEEE-488.2 Commands	62
8.	Options	63
8.1	Barometric Reference Transducer	63
8.1.1	Gauge Pressure Emulation	63
8.1.2	Absolute Pressure Emulation	63
8.1.3	Calibration	64
8.1.4	Specifications	64
8.2	Barometer	64
8.2.1	Zero and Sea Level Adjustment	64
8.2.2	Calibration	66

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8.2.3	Specifications	66
8.3	Analog Output	66
8.3.1	Command Set for Analog Output Option	67
8.3.2	Zero and Span Adjustment	68
8.3.3	Specifications	69
8.4	IEEE-488 (GPIB) (see 7.1.4)	70
8.5	Rack Mount Kit (optional accessory)	70
9.	Maintenance	71
9.1	Beyond the Warranty	71
9.2	Spare Parts	72
9.3	Replacing the fuse	72
10.	Calibration	73
10.1	Environment	73
10.2	Pressure Standards	73
10.3	Calibration Medium	73
10.4	Setup	74
10.5	Calibration Process	75
10.5.1	Sensor Tab	76
10.5.2	Utility Tab	76
10.5.2.1	Zero and Head Correction	76
10.5.2.2	Restore Factory Cal	77
10.5.2.3	Change Password	77
10.5.2.4	Date of Calibration	77
10.5.3	Edit Tab	78
10.5.4	Calibrate Tab	78
10.5.4.1	Procedure 1: ‘As found’ Data	79
10.5.4.2	Procedure 2: Active Calibration	79
11.	Appendix	81
11.1	Measurement Units	81
11.2	Conversion Factors, psi	82
11.3	Conversion Factors, millitorr	84
11.4	Conversion Factors, pascal	85

6	Mensor/WIKA Operating Instructions Series CPG 2500

Digital Pressure Gauge

SERIES CPG 2500

1. General Information

1.1 Warranty

All products manufactured by Mensor® Corporation (Mensor) are warranted to be free of defects in workmanship and materials for a period of one year from the date of shipment. No other express warranty is given, and no affirmation 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 final 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 specific 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 specifications and other information contained in this manual are subject to change without notice.

Mensor has made a concerted effort to provide complete and current information for the proper use of the equipment. If there are questions regarding this manual or the proper use of the equipment, contact Mensor at:

TEL	1.512.396.4200	WEB SITE	www.mensor.com
TEL	1.800.984.4200 (U.S.A. only)	E-MAIL	sales@mensor.com
FAX	1.512.396.1820		tech.support@mensor.com

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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.

1.4 Trademarks and Copyrights

Mensor is a registered trademark of Mensor Corporation. All other brand and product names are trademarks or registered trademarks of their respective companies. ©2007, Mensor Corporation. All rights reserved.

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 or reverse compile the software program.

iThe 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 fitness

Notice 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 suffered or incurred by the end user (including, but not limited to, general, special, consequential

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or incidental damages including damages for loss of business profits, 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

If you have problems and you don’t find the answer in this manual, contact Mensor at 1.800.984.4200 (USA only) or 1.512.396.4200 for personal assistance, or at any of the contact addresses listed on the rear cover of this manual. We are ready to help.

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 certification services after the warranty for a nominal fee.

1.6.2 Calibration Services

In addition to servicing our own products Mensor can perform a complete pressure calibration service, up to 20,000 psi, for all of your pressure instruments. This service includes an accredited calibration.

1.6.3 Accreditations

Mensor Corporation 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 different location or returned to Mensor 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.

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2. Safety Notices

2.1 User Responsibilities

To ensure safety, the user must make sure that:

•The system is used properly, no dangerous media are used and that all technical specifications are observed.

•The system is operated in perfect operating condition.

•This 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 qualified personnel.

•The operator receives instruction on industrial safety and environmental protection, and is knowledgeable of the operating instructions and the safety notices contained therein.

2.2. General Safety Notices

iThe system should only be operated by trained personnel who are familiar with this manual and the operation of the instrument.

Notice

WARNING: 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

Warning	be prohibited. The system must be handled with care required for
	an electronic precision instrument (protect from humidity, impacts,
	strong magnetic fields, 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.
	Extreme care must be taken with pressure connections when using
	hazardous or toxic media.
	Repairs must only be performed by authorized service personnel.

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iAdditional safety notices are found throughout this manual.

Notice

2.3 Warnings and Caution Notices

WARNING: HIGH PRESSURE! High pressure gases are potentially

!hazardous. Energy stored in these gases and liquids can be released suddenly and with extreme force. High pressure systems should be

	Warning	assembled and operated only by personnel who have been trained in
	Warning	proper safety practices.
		proper safety practices.

!in an area requiring devices rated as intrinsically safe is not recom-WARNING: NOT EXPLOSION PROOF! Installation of this instrument

mended.

Warning

WARNING: POSSIBLE INJURY! The tubing, valves, and other appara-

!tus attached to the gauge must be adequate for the maximum pres-

sure which will be applied, otherwise physical injury to the operator Warning or bystanders is possible.

!dry, non-corrosive gases unless otherwise specified by mensor. ThisCAUTION: USE THE PROPER PRESSURE MEDIUM! Use only clean,

instrument is not designed for oxygen use.

Caution

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CAUTION: As with most sensitive electronic equipment, switch the

!power switch off before connecting or disconnecting to a power source to prevent data loss.

Caution

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 to sensitive electronic components.

Additional Warning and Caution notices are found throughout this manual.

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3. Product Description

3.1 General Description

The CPG 2500 Digital Pressure Gauge is a multi-channel pressure system designed to test and calibrate a variety of pressure devices in either absolute or gauge pressure modes. The CPG 2500 can have two independent measurement channels plus an optional barometric reference.

Figure 3.1 - Front View

3.2 Features

Here is a short list of significant features designed into the CPG 2500:

1.Up to two highly stable, temperature compensated, pressure transducers.

2.An optional internal high accuracy barometric reference transducer provides gauge pressure emulation for all of the absolute ranges and absolute pressure emulation for gauge ranges.

3.A color HVGA display with a touch screen for intuitive operator interface.

4.Multiple languages; change the language for on-screen text and number/date formats by simply touching one of the “national flag” icons available on the display. The current language selections available are listed in Section 6, Local Operation, under the heading “Language selection key”.

Operate the CPG 2500 while it is either sitting on a bench or mounted in a standard equipment rack. Use either front panel input (Local Operation), or send commands and queries over a bus from a separate “host” controller (Remote Operation).

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3.3 Front Panel

The CPG 2500 front panel includes a 6.2 inch color Half Video Graphics Array (HVGA) liquid crystal display featuring touch screen technology. Operator input is accomplished by pressing the words or icons presented on the display. There are no discrete keypads or switches on the front panel.

On the lower right hand side of the front panel there are labels which show the model number, serial number, and calibrated pressure ranges of the internal transducers.

3.4 Display

When the CPG 2500 is powered up it takes about one minute to initialize, then displays a screen similar to the one shown in “6.3 - Display Screen Features”. The display is made up of rectangles that display text or icons.

Keys, Tabs, Labels and Windows: In this manual a key is a small rectangle which acts as a switch when pressed. Keys have borders with a three dimensional, shadowed effect. Tabs are a group of touch points, each of which will overlay most of the screen with one page related to its title subject. Small rectangles with double line borders that display information, but do not respond to being touched, are called Labels or Windows.

Keys cause something to change when they are touched. Each key has a characteristic response when actuated; either an instant, single step response when the key is pressed, or a delayed response when released. Operators will quickly become accustomed to the particular characteristics of the frequently used keys. Some keys become labels under certain conditions, then resume their key function in other circumstances.

Main Screen: The main screen appears after power-up. This screen contains the channel frames and toolbar.

Channel Frame(s): The channel frames contain information specific to a channel. The channel frames are color coded with channel A being green and channel B being blue. The Delta channel is yellow. If only one channel is installed, a wide frame will be displayed in the color of the channel selected. The channel frame contains the channel setup key (wrench icon), the channel title bar, the calibration function key (if enabled), the engineering units key, the pressure reading window, and the display function windows/keys (if enabled).

Toolbar Keys: The toolbar at the bottom of the screen has the Contacts and Version Information key (brings up a corporate information display), the language selection key, the main screen view key, the remote setup key, and the remote status key.

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3.5 Chassis Assembly

The chassis assembly acts as the housing for the system. The system has no userserviceable parts except for the fuse, and therefore the chassis should not be opened except by qualified repair personnel at Mensor or certified service locations for any other reason.

3.6 Turning on the CPG 2500

You can confirm that your CPG 2500 is operational right now. Apply power to the power connector on the rear of the instrument with the included power adapter, remove any plastic plugs from the rear panel pressure ports, and press the power switch to ON. The system will go through an initialization process and then a display will appear similar to the screen shown below.

Touch the Contact and Version Information key on the toolbar and a window will appear listing the Mensor customer service contact and software version information. Press the back key to return to the main screen.

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NOTES

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4. Specifications

Accuracy specifications presented herein are obtained by comparison with primary standards traceable to the National Institute of Standards and Technology (NIST). These specifications are obtained in accordance with the ISO Guide to the Expression of Uncertainty in Measurement (GUM). The calibration program at Mensor is accredited by the American Association of Laboratory Accreditation (A2LA) as complying with both the ISO/IEC 17025:2005 and the ANSI/NCSL Z540-1-1994 standards. If there is an exception to the requirements and recommendations of Z540 during a calibration the exception is noted on the individual calibration certificate.

Mensor reserves the right to change specifications without notice.

This table shows available ranges in psi corresponding to the mode and total uncertainty.

	Total	0.01% FS			0.01% IS-50*
Mode	Uncertainty	0.01% FS			0.01% IS-50*
Gauge		0...	36 to 0	...10,000	0...	15 to 0...	6,000
Bi Directional		-0.18 0.18 to -15 to 10,000...			Not available

Absolute		0...	5 to 0...	10,000	0...	15 to 0...	6,000

*0.01% IntelliScale-50 (0.01% IS-50) is defined as a total uncertainty of 0.005% of full scale (FS) from 0% to 50% of FS and 0.01% of reading from 50% to 100% of FS.

Compensated	°C	15 ... 45
temp range
Calibration	days	180
interval
Pressure		psi, inHg @ 0°C and 60°F, inH2O @ 4°C, 20°C and 60°F, ftH2O
units		@ 4°C, 20°C and 60°F, mTorr, inSW @ 0°C, ftSW @ 0°C, ATM,
		bar, mbar, mmH2O @ 4°C, cm H2O @ 4°C, MH2O @ 4°C,
		mmHg @ 0°C, cmHg @ 0°C, Torr, kPa, Pa, Dy/cm2, g/cm2, kg/
		cm2, mSW @ 0°C, OSI, PSF, TSF, TSI, μHg @ 0°C, hPa, mPa,
		mmH20 20°C, cmH2O 20°C, MH2O 20°C. All seawater units
		are 3.5% salinity.
Pneumatic		To 6000 psi: 7/16 - 20 female SAE/MS. 1/8” FNPT adapters
interfaces		provided. Ranges >6000 psi: Autoclave F250C/HIP HF4.
		6IJIVIRGI TSVX WXERHEVH TWM 7 STXMSREP TWM 7

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Pressure		Clean, dry, non-corrosive, non-conbustible, non-oxidizing
media		gases. Not suitable for oxygen use
Display		6.2” color LCD with 4 wire resistive touch screen
Resolution	digits	6 significant digits (up to 1 ppm); user selectable.
Warmup time	min	Approximately 15 minutes to achieve full accuracy depending
		on environment.
Remote user		Standard: RS-232 and Ethernet
interfaces		Optional: IEEE-488 and Analog Output
Power input		+5 VDC, 3 A min.
requirements		Fuses: Littelfuse® 0454 002
Operating	°C	0° ... 50
temp range		Note: This is not the compensated temperature range.
Storage	°C	0° ... 70.
temp range		Minimal vibration. Non-condensing humidity.
Orientation		Negligible, can be removed with re-zeroing.
effects
Weight	lbs.	<5
Dimensions	in.	8.37” wide x 3.47” high x 9.00” deep (21.26 cm x 8.81 cm x
	(cm)	22.86 cm).
		Half rack width x 2U x 9” deep.
		Feet: .96 wide x .60” high x 3.10” deep (2.44 cm x 1.52 cm x
		7.87 cm).
Compliance		The CPG 2500 is compliant to:
		EN 61326-1:1997
		EN 61326-1:A1:1998
		EN 61326-1:A2:2000
		EN 61000-3-2:2000
		EN 61000-3-3:1995
Reading rate		50ms, 20 readings per second
Operating		5 to 95% RH non-condensing
environment
Options		Optional Output: Barometric Reference Transducer, Barom-
		eter, IEEE-488 GPIB Interface, Analog Output.
		Optional Accessories: Rack Mount Kit

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5. Installation

5.1 Unpacking the Instrument

In addition to functional testing, each unit is inspected for appearance prior to leaving the factory. Upon receipt, please examine the transducer for shipping damage. Report any apparent damage to the carrier immediately.

In addition to this manual you should have:

•CPG 2500 Digital Pressure Gauge;

•Power Supply;

•1/8 inch FNPT fitting adapters;

•Any accessories ordered;

•An envelope containing the Calibration Certificate.

5.2 Dimensions

5.3 Mounting

The instrument can be set up on a table top or it can be rack-mounted. Rack mount adapters are optional on the CPG 2500 (see Section 8, Options).

The special sensors used in the CPG 2500 are relatively insensitive to tilt and vibration. However to further assure stability and accuracy, avoid mounting the instrument on surfaces subject to excessive motor or machinery vibration.

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5.4 Rear Panel

Up to five pneumatic pressure ports are located on the rear panel. Positioned between the pressure ports are the ethernet and RS-232 connectors and the power switch. Optional connectors could be a GPIB connector, a barometric reference hose barb, or an analog output connector.

5.5 Pressure Connections

iWhen making up a connection to an o-ring adapter fitting port use a back-up wrench to prevent over-stressing the threads in the manifold block.

Notice

All of the primary pressure ports on the rear are female 7/16 - 20 SAE/MS straight threads per MS16142 and SAE J514 table 14. They require a tube fitting boss seal with an o-ring per MS33656. Mensor provides female 1/8” NPT adapter fittings with the instrument. The pressure connections can be made to these adapters with the proper mating hardware. We recommend the use of either Loctite® Hydraulic Sealant or new teflon tape on the threads of any male pipe fitting. Do not use sealant on fittings sealed with an o-ring. The integrity of each seal is particularly important since even microscopic leaks can cause errors in pressure measurements.

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5.5.1 Pressure Port

Connect a device to be tested to the PRESSURE port. The CPG 2500 will precisely measure the pressure at this port up to the full scale range of the sensor.

5.5.2 Reference Port

On low pressure (< 20 psi) gauge units this port is available to connect to the reference side of the transducer. The maximum value is equal to or less than the range of the sensor or 20 psi, whichever is less. This port is normally left open to atmosphere but may be connected to a stable reference pressure. It is optionally available on all gauge ranges <= 6000 psi.

5.5.3 Remote Bus Connections

See Section 7, Remote Operation, for connections and commands for operation over the Ethernet or RS-232 serial port.

5.6 Power Up

After the pressure connections are secure, 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 a screen similar to the one shown in Section 6.3 - Display Screen Features. Allow at least 15 minutes of warm up before performing critical pressure measurements.

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NOTES

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6. Local Operation

6.1 General Operation

This section describes the procedures for operating the CPG 2500 from the front panel. Instructions for operating the device remotely from an external computer are covered in Section 7, Remote Operation. By following the procedures provided in these two sections and Section 10, Calibration, you can expect your CPG 2500 to deliver maximum accuracy and dependability for many years of useful service.

6.2 Keys and Tabs

Local operation is accomplished by observing the data presented in the display, then pressing the on-screen key or tab for the desired function. The back key is in the upper left corner of all screens except for the main screen. It is used to return to the previous screen.

6.3 Display Screen Features

The screen shown below provides a brief description of the features shown on a dual channel display after initialization. Additional keys will appear on this screen if activated (zero, tare, peak and rate). All of the CPG 2500 screen features are described in more detail throughout this manual.

Figure 6.3 - Display Screen Features

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6.4 Toolbar

6.4.1 Contact and Version Information Key

Press this key to display Mensor contact, instrument and software version information.

6.4.2 Language Selection Key

The flag icon on the toolbar is a key that indicates the language used in all screens. Press this key to select the language used for local operation. The current language selections available are:

Language	Country
English	USA
German	Germany
French	France
Spanish	Spain
Italian	Italy
Chinese	China
English	Great Britain
German	Switzerland
French	Switzerland
Spanish	Mexico
Russian	Russia
Korean	Korea
English	Canada
French	Canada
Polish	Poland
Japanese	Japan

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6.4.3 Main Screen View Key

Press this key to configure the channel displayed on the main screen.

Select a channel to display on the left and right frames or press the single channel display key in the middle to select a single channel.

To return to a dual channel display screen press the dual channel display key, select the desired channels and return to the main screen by pressing the back key.

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6.4.4 Remote Setup Key

Press this key to set the operating parameters for Instrument emulation, Ethernet, Serial RS-232 or optional IEEE-488. For further information see Section 7, Remote Operation.

6.4.5 Remote Status Key

Press this key to view the remote communications monitor. The remote monitor displays detailed information that is helpful to troubleshoot programs.

6.5 Channel Frames

6.5.1 Pressure Reading window

This window always displays the current pressure reading.

6.5.2 Channel Setup Key

Press this key to access setup functions for a channel. The channel setup screen has four tabs that group related types of settings.

26	Mensor/WIKA Operating Instructions Series CPG 2500

Digital Pressure Gauge

SERIES CPG 2500

6.5.2.1 Display Tab

Press the display tab to configure the measure and adjust functions.

6.5.2.1.1 Adjust Function

The adjust function will add a Tare or Zero key on the upper left above the pressure reading window. If these features are not desired, select Off.

Tare: Allows the user to temporarily set the measured pressure reading to zero. Press the key again to return the reading to the true pressure.

Non-Password Protected Zero: Allows the user to zero the measured pressure reading. On gauge transducers, vent the pressure port to atmosphere and press the Zero key. When the Zero key is pressed on an absolute sensor, a number entry keypad is displayed to allow the user to enter the applied pressure. When power is cycled the zero is saved in the sensor through the password protected zero function (see Section 6.5.2.3 - Adjust Tab). It will also return to the most recent factory calibrated zero when the “Reset Factory Cal, OK” key is pressed (see Section 10.5.2 - Utility Tab). This feature must be enabled in the Adjust settings to be available. See Section 6.5.2.3 - Adjust Tab for more information.

6.5.2.1.2 Measure Function

The measure function will add peak, rate or the optional barometric sensor reading below the pressure reading window. If these features are not desired, select Off.

Peak: Displays the highest and lowest pressure points since the last reset or power up.

Rate: Reports the rate at which the measured pressure is changing. Press the Rate Unit key on the main menu screen to select among the four time scales: second, minute, hour and three hours.

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