WIKA operating instructions process pressure transducer, model CPT6020
EN
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WIKA operating instructions process pressure transducer, model CPT6020
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EN
General information
1. General Information
■
The CPT6020 Precision Pressure Transducer described in the operating instructions has been designed and manufactured
using state-of-the-art technology. All components are subject to stringent quality and environmental criteria during production.
Our management systems are certified to ISO 9001 and ISO 14001.
■
These operating instructions contain important information on handling the instrument. Working safely requires that all safety
instructions and work instructions are observed.
■
Observe the relevant local accident prevention regulations and general safety regulations for the instrument's operating range.
■
The operating instructions are part of the instrument and must be kept in the immediate vicinity of the instrument and readily
accessible to skilled personnel at any time. Pass the operating instructions onto the next operator or owner of the instrument.
■
Skilled personnel must have carefully read and understood the operating instructions prior to beginning any work.
■
The general terms and conditions contained in the sales documentation shall apply.
■
Subject to technical modifications.
■
Factory calibrations are carried out in accordance with international standards.
All products manufactured by Mensor are warranted to be free of defects in workmanship and materials for a period of two 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
Alexander Wiegand-Straße
63911 Klingenberg, Germany
Fax: (+49) 9372/132-8767
E-Mail: CTsales@wika.com
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WIKA operating instructions process pressure transducer, model CPT6020
General Information
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 Radio Frequency Emission Notices
USE SHIELDED CABLES TO CONNECT EXTERNAL DEVICES TO THIS INSTRUMENT TO
MINIMIZE RF RADIATION
1.2.1 FCC Emission Notice
This equipment has been tested and found to comply with the limits for a Class B 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 residential 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.
1.2.2 CE Emission Notice
This equipment is of the emission class B, intended for operation in industrial, residential or commercial environments.
EN
1.3 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.
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 fitness 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 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.
1.4 Mensor Service Plus
1.4.1 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.
1.4.2 Calibration Services
In addition to servicing our own products Mensor can perform a complete pressure calibration service, up to 30,000 psi, for all of
your pressure instruments. This service includes an accredited calibration.
1.4.3 Certifications and 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.
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Short Overview
2. Short Overview
The CPT6020 pressure transducer is a high accuracy digital output pressure transducer and is available in gauge, absolute and
bidirectional pressure ranges with full scale pressure ranges as low as 10” H2O to as high as 15,015 psia .
Figure 2.1
2.1 Features
Here is a short list of significant features designed into the CPT6020:
■
Accuracy to 0.02% FS
■
Wide voltage power input range
■
IP-67 rating for harsh environments
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All 316L SS wetted path on ranges >5 psi
■
Command emulation for digital communications
■
User selectable units
■
Compact size
2.2 Scope of Delivery
■
Precision Pressure Transducer model CPT6020
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Power cord with 1.5 m (5 ft) length
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Operating instruction
■
Factory calibration certificate
■
Selected fitting
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WIKA operating instructions process pressure transducer, model CPT6020
Safety
3. Safety
3.1 Explanation of Symbols
DANGER!
... indicates a directly dangerous situation resulting in serious injury or death, if not avoided.
WARNING!
... indicates a potentially dangerous situation that can result in serious injury or death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries or damage to property or the environment,
if not avoided.
DANGER!
... identifies hazards caused by electrical power. Should the safety instructions not be observed, there is a risk of
serious or fatal injury.
WARNING!
... indicates a potentially dangerous situation that can result in burns, caused by hot surfaces or liquids, if not avoided.
Information
... points out useful tips, recommendations and information for efficient and trouble-free operation.
EN
3.2 Intended Use
The CPT6020 pressure transducer is designed to measure pressure with extreme accuracy as stand-alone devices or as
incorporated in OEM type applications. It is characterized over a wide temperature range and is designed to be used in
environments that are much more harsh than tolerable by previous generations of Mensor pressure transducers.
3.3 Improper Use
WARNING!
Injuries through improper use
Improper use of the instrument can lead to hazardous situations and injuries.
▶
Do not use the transducer within hazardous areas
▶
Do not use the transducer with oxygen as a medium
▶
Do not attempt to disassemble the transducer
Any use beyond or different than the intended use is considered improper use.
3.4 Responsibility of the Operator
The instrument is used in the industrial sector. The operator is therefore responsible for legal obligations regarding safety at work.
The safety instructions within these operating instructions, as well as the safety, accident prevention and environmental protection
regulations for the application area must be maintained.
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Safety
The operator is obliged to maintain the product label in a legible condition.
The operator must ensure that:
■
Mechanical vibration, mechanical shock are minimized
■
The transducer is installed in areas without soot, vapor, dust and corrosive gases
■
The transducer is not used in hazardous environments, flammable atmospheres
■
The operating personnel are regularly instructed in all topics regarding work safety, first aid and environmental protection and
know the operating instructions and in particular, the safety instructions contained therein
■
The transducer is suitable for the particular application in accordance with its intended use
■
Personal protective equipment is available
3.5 Personnel Qualification
WARNING!
Risk of injury should qualification be insufficient
Improper handling can result in considerable injury and damage to equipment.
▶
The activities described in these operating instructions may only be carried out by skilled personnel who have the
qualifications described below.
Skilled personnel
Skilled personnel, authorized by the operator, are understood to be personnel who, based on their technical training, knowledge
of measurement and control technology and on their experience and knowledge of country-specific regulations, current standards
and directives, are capable of carrying out the work described and independently recognizing potential hazards.
Operating personnel
The personnel trained by the operator are understood to be personnel who, based on their education, knowledge and experience,
are capable of carrying out the work described and independently recognizing potential hazards.
Special knowledge for working with instruments for hazardous areas:
The skilled (electrical) personnel must have knowledge of ignition protection types, regulations and provisions for equipment in
hazardous areas.
Special operating conditions require further appropriate knowledge, e.g. of aggressive media.
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Safety
3.6 Personal Protective Equipment
The personal protective equipment is designed to protect the skilled personnel from hazards that could impair their safety or health
during work. When carrying out the various tasks on and with the instrument, the skilled personnel must wear personal protective
equipment.
Follow the instructions displayed in the work area regarding personal protective equipment!
The requisite personal protective equipment must be provided by the operating company.
Wear safety goggles!
Protect eyes from flying particles and liquid splashes.
Wear a protective helmet!
Protects the head from falling objects.
Wear safety shoes!
Protect feet from falling objects or objects lying around, as well as against toxic or hazardous liquids and aggressive
media.
EN
3.7 Labeling, Safety Marks
3.7.1 Product Label
1
Model
2
Range
3
Accuracy
4
Serial NumberDate of Manufacture
5
Communications
6
Power Requirements
7
Symbols
8
9
Origin
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Safety
3.7.2 Symbols
Before mounting and commissioning the instrument, ensure you read the operating instructions!
CE, Communauté Européenne
Instruments bearing this mark comply with the relevant European directives.
This marking on the instruments indicates that they must not be disposed of in domestic waste. The disposal is
carried out by return to the manufacturer or by the corresponding municipal authorities (see EU directive 2012/19/
EU).
3.8 Warnings and Cautions
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 assembled and operated only by
personnel who have been trained in proper safety practices.
WARNING!
NOT EXPLOSION PROOF! Installation of this instrument in an area requiring devices rated as intrinsically safe is not
recommended.
WARNING!
POSSIBLE INJURY! The tubing, valves, and other apparatus attached to the gauge 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! Only use media compatible with materials of construction as specified .
This transducer is not designed for oxygen use.
CAUTION
As with most sensitive electronic equipment, switch the power switch off before connecting or disconnecting to a
power source to prevent data loss. Do not position the equipment so that it is difficult to disconnect the AC power
cord.
WARNING!
Detachable main power supply cord with inadequate ratings should not be used. See Section 9.2 Specifications for
power ratings.
Additional Warning and Caution notices are found throughout this manual.
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Transport, Packaging and Storage
4. Transport, Packaging and Storage
4.1 Transport
Check the CPT6020 for any damage that may have been caused by transport.
Obvious damage must be reported immediately.
CAUTION!
Damage through improper transport
■
While unlikely, with improper transport, damage can occur. When unloading packed goods upon delivery as well
as during internal transport, proceed carefully and observe the symbols on the packaging.
■
If the instrument is transported from a cold into a warm environment, the formation of condensation may result in
instrument malfunction. Before putting it back into operation, wait for the instrument temperature and the room
temperature to equalize.
4.2 Packaging and storage
Permissible conditions at the place of storage
■
Storage Temperature: -40 … 85˚C
■
Humidity: 5 … 95% relative humidity (no condensation)
Avoid exposure to the following factors:
■
Direct sunlight or proximity to hot objects
■
Mechanical vibration, excessive mechanical shock
■
Soot, vapor, dust and corrosive gases
■
Hazardous environments, flammable atmospheres
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Installation
5. Installation
Personnel: Skilled electrical personnel
EN
WARNING!
READ THESE INSTRUCTIONS BEFORE INSTALLATION!
Only use original parts (see Chapter 10 “Accessories”).
WARNING!
Physical injuries and damage to property and the environment caused by hazardous media
Upon contact with hazardous media (e.g. oxygen, acetylene, flammable or toxic substances), harmful media (e.g.
corrosive, toxic, carcinogenic, radioactive), and also with refrigeration plants and compressors, there is a danger of
physical injuries and damage to property and the environment.
Should a failure occur, aggressive media with extremely high temperature and under high pressure or vacuum may
be present at the instrument.
▶
For these media, in addition to all standard regulations, the appropriate existing codes or regulations must also be
followed.
▶
Wear the requisite protective equipment (see Chapter 3.6 “Personal Protective Equipment”).
CAUTION
Damage to the Instrument
When working on open electrical circuits (printed circuit boards) there is a risk of damaging sensitive electronic
components through electrostatic discharge.
▶
The correct use of grounded working surfaces and personal armbands is required.
5.1 Mounting
The transducer may be mounted via its process connection or with any ring clamps along its body. Having the sensor oriented in a
position other than vertical (with the port down) might cause a slight zero shift than can be removed by re-zeroing the transducer.
5.1.1 Pressure Connections
The CPT6020 has a JIC4 type female connection. When installing a mating connector, do not torque the connector with more than
13 ft-lbs or galling might occur. The transducer is supplied with a crush washer that can be used to further eliminate leaks.
5.1.2 Safety Relief Valves
Mensor recommends that an appropriately sized relief valve be placed in line with the pressure port of the transducer.
5.1.3 Pressure Media
A media comparable with the wetted parts of the transducer must be used.
14
CAUTION
USE THE PROPER PRESSURE MEDIUM! Only use media compatible with materials of construction as specified .
This transducer is not designed for oxygen use.
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RS-232
RS-485
Installation
5.1.4 Electrical Connections
Note: Power supply should be
The pinouts on the six pin connector and RS-232 and RS-485 Cable connections are:
HOST
DB9
9 to 18 VDC (12 VDC nominal).
Pin
1RS-485 TX-White
2+9-18VBrown
3GroundGray
4RS-485 RX+ or RS-232 RXBlack
5RS-485 RX-Blue
6RS-485 TX+ or RS-232 TXPink
External Connector Pinouts
FunctionPigtail Color
EN
COM
COM
Female
PWR
HOST
DB9
9
Female
PWR
2
3
5
GND
12 VDC
1
2
3
5
GND
12 VDC
PINK
BLACK
GR AY
BROWN
WHITE
BLACK
BLUE
PINK
GR AY
BROWN
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Figure 5.1.2 COM Connection Pin-out and RS-232 / RS-485 cable connections
WIKA operating instructions process pressure transducer, model CPT6020
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Operation
6. Operation
6.1 General Operation
The CPT6020 transducer can be ordered with either an RS-232 or RS-485 full duplex output. The communications protocol is
defaulted to 57600,N,8,1. The baud rate can be changed via remote commands. Connector pinouts and RS-232 and RS 485
cable connections are shown in Figure 5.1.2. The transducer has multiple command sets with which it can communicate with the
host. These are set through the CMD_SET command.
6.1.1 Command and Query Format
Commands must be sent in ASCII format and terminated with a carriage return (<CR>) followed by a linefeed (<LF>). Commands
are not case sensitive. Query strings are terminated with a “?” prior to the termination character(s). If the transducer is put in a
burst output mode, the output of the transducer is in a binary output mode. The host communications program must synchronize
with the output of the transducer. The transducer’s output to a pressure value query is programmable depending on what the user
wants in the output string.
6.1.1.1 RS-485 Command and Query Format
On RS-485 versions of the CPT6020, the commands must be preceded by a “#”, an address or a “*”, and a space. In RS-485 the
ADDRESS command sets the address in ranges from “0” to “9” and “A” to “Z”. The global address character is the “*”. When data
is required for a command, a space (only) should delimit command and data fields.
6.1.1.2 RS-232 Command and Query Format
On RS-232 versions of the CPT6020, the “#” or address character is not necessary to precede the command for the Sensor
command set. But, the Mensor Legacy command set still requires a proceeding “#” and address character. With the default
sensor command set in RS-232, the start character and address character are not required.
6.1.1.3 Command Error Detection and Debugging
The CPT6020 has built in responses to correct and incorrect data. The responses can be used to help debug the software. In the
Sensor command set, the device will return “Ready” in response to a valid data command. If the device is in the Mensor Legacy
command set, an “R” will be returned in response to valid data. If the data is determined to be invalid, the Sensor command set
will return “Invalid Data”. The Mensor Legacy command set will still return an “R” character when invalid data is sent. This is a
limitation of the Mensor Legacy command set. The Sensor command set will return “Unknown command” if the command is not
found, while the Mensor Legacy command set will ignore it and not respond. This paragraph is summarized below in the following
table:
Also, it is important to note that when sent data is determined to be valid, the value will be stored in RAM. Only after the SAVE
command is sent is the data saved permanently. This applies to all command sets.
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Operation
6.1.2 CPT6020 Commands and Queries
Commands with complex outputs are explained In tables following the command set.
The following convention is used for the following command set tables:
n – 1 placeholder for digits and decimal point
C – 1 character placeholder for alpha character A-Z
<cr> - carriage return – ASCII 13
<lf> - line feed – ASCII 10
± - 1 place holder for a + or – sign, or blank which implies +
¬<sp> - 1 place holder for a space
X – address placeholder or ‘*’ for universal queries to be sent to all instruments
Y(1,2,3…) – strings as defined in description
<yy,mm,dd> - Last two digits of year, month, day.
All commands, queries, and responses will be terminated with a <cr><lf>.
All commands that are password protected are designated with “(Password Protected)” in the Query column below.
Set 0 ... 99 to correspond
to a filter window of
0 ... 0.099%FS
19200, 57600, 115200
Table 6.1.3.2
per Table 2.1 (This
command is included in
all command sets.)
= <old,new>
Pressure Related Commands
PRESS?N/AReturns configurable
output from active
channel in current units
see Table 6.1.2.10
& Output Control
Commands section.
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Operation
RANGE_MIN?N/A+n.nnnnnnnE+nnMinimum range in
current units.
RANGE_MAX?N/A+n.nnnnnnnE+nnMaximum range in
current units
UNIT_INDEX?UNIT_INDEX<sp><n>nMensor unit index: 1-39
or 99 for CUST_UNIT.
See Table 6.1.2.5
UNIT?N/AccccccccccUnit text 10 char -
mmHg, psi, kPa…
CUST_UNIT?CUST_UNIT<sp><n>+n.nnnnnnnE+nnSets custom unit
multiplication (xx/psi).
See Section 6.1.2.6
Calibration Related Commands
CAL_DATE? CAL_DATE<sp><yy,mm,dd>
(Password Protected)
SPAN? CAL_SPAN<sp><n>
(Password Protected)
ZERO? CAL_ZERO<sp><n>
(Password Protected)
N/ATARE<sp><n>nTurns tare on/off - 1/0
Temperature Related Command
TEMP? N/A+nnn.nTemperature in deg. C.
Output Control Commands
OUTPUT_MASK?OUTPUT_MASK<sp><n>nConfigures output for
nn,nn,nnCalibration date
+n.nnnnnnnE+nnCustomer span multipler
- 0.99 to 1.01. See
Section 6.1.2.7
+n.nnnnnnnE+nnCustomer zero adder.
See Section 6.1.2.7
PRESS? Query and
Continuous Output– see
6.1.2.10
Table 6.1.2 – Sensor Command Set
Password Protection
In the Sensor Command Set, data that affects calibration is protected by a user settable 4 character password (designated as
“Password Protected”). The default password is “0000”. This is changed using the PWD_CHANGE command. It should be
changed once the user receives the device. The factory password will override the user’s password in the case that the user loses
their password.
Filter & Window
The filter is a percentage of the previous reading averaged with the current reading - as long as the current reading is within the
window of the previous reading. The window is set as a %FS of the transducer’s range. If the current reading is outside of the
window from the previous reading, the filter is unused and the current reading is displayed without manipulation. This scheme
allows the user to tune the transducer’s response as they like. It also allows the transducer to respond to rapid pressure changes
without having to change the filter. The default values are 0.01% FS for the window and a filter of 90%.
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Operation
6.1.2.1 Default Command
DEFAULT - This will default the following parameters to the shown settings:
ParameterSetting
Filter90
Window10
Baud57600
CMD_SET0
CUST_UNIT1
Table 6.1.2.2 - Default Settings
6.1.2.2 Setting the Command Set
CMD_SET - This will set the transducer to communicate using different command sets:
Command SetDescription
0Sensor Default Command Set
1Mensor Legacy
EN
Table 6.1.2.3 – Command Set List
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Operation
6.1.2.3 Setting Pressure Units
UNIT_INDEX - This command sets the output units per the following table:
Unit Index UnitsUnit IndexUnits
1psi21Torr
2inHg 0C22kPa
3inHg 60F23Pa
4inH2O 4C24dy/cm2
5inH2O 20C25g/cm2
6inH2O 60F26kg/cm2
7ftH2O 4C27MSW 0C
8ftH2O 20C28osi
9ftH2O 60F29psf
10mTorr30tsf
11inSW 0C31Not Used
12ftSW 0C32uHg 0C
13atm33tsi
14bar34mHg 0C
15mbar35hPa
16mmH2O 4C36Mpa
17cmH2O 4C37mmH2O 20C
18MH2O 4C38cmH2O 20C
19mmHg 0C39mH2O 20C
20cmHg 0C99CUST_UNIT
Table 6.1.2.5 - Available Unit Codes and Units
6.1.2.4 Customer Units
The CUST_UNIT multiplier in conjunction with UNIT_INDEX 99 allows the user to set their own units. The CUST_UNIT is a
multiplier times psi to achieve the customer’s unit value.
6.1.2.5 Calibration Adjustments
SPAN & ZERO - These are calibration multipliers and offset respectively. The zero is an offset applied to all output pressure values.
The span is a multiplier times all pressure output values..
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Operation
6.1.2.6 Output String Setting
PRESS? & OUTPUT_MASK - PRESS? is a programmable output query that returns an ASCII string based on the selections set by
the OUTPUT_MASK variable. The selected parameters will populate the output string with commas separating the variables in the
order in which they appear in the following table:
PressurePressure in current unitsFixed+n.nnnnnnnE+nn14
UnitsUnit Description1CCCCCCCCCC10
Stable0/1 – unstable/stable16n1
Error0/1 – no errors, error(s) in stack32n1
ChecksumChecksum of output string64n2
Table 6.1.2.10 - Query Mode Mask Description
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Operation
6.1.3 MENSOR Legacy Command Set
This command and query set replicates the communications with legacy Mensor products – the 61xx, CPT61xx, 6000, CPT6010
and most of the removable sensors from Mensor pressure calibrators (PCS400M, PCS 6000, CPC6000, CPC8000). The
command set enabled and stored sets the power-on command set for the transducer. From any command set, the CMD_SET
command can select which one is used.
Command Set 1 – Mensor Legacy
P/WCommandCommand StringReturn StringDescription
None?#X?X<sp>±YBasic query to return
readings. Pressure in
native units are returned
NoneA<x>#X<sp>YRSets address of sensor X
to Y (0-9,A-Z)
NoneCMD_SET<Y>#XCMD_SET<sp>YRChange CPT6020 into
different command sets.
1 is Mensor Legacy. 0 is
Sensor command set
NoneDC?#XDC?X<sp>DC<sp>YReturns the date of
calibration where Y is
mmddyy
CustDC<Y>#XDC<sp>YRLoads the date of
calibration where Y is
mmddyy
NoneDT?#XDT?X<sp>DT<sp>NNNReturns the temperature
a/d DAC offset
NoneFL?#XFL?X<sp>FL<sp>NNReturns the filter – it is the
percentage of old reading
added to new reading: 0
to 99
NoneFL<X>#XFL<sp>NNRSets the filter percentage
NoneFS?#XFS?X<sp>FS<sp>NNReturns the % FS
uncertainty
NoneID?#XID?X<sp> ID <sp> AAAAAAAA,
<sp>BBBBBBBB,
<sp>CCCCCCCC,
<sp>VD.DD
NoneM?#XM?X<sp>M<sp> YReturns the operation
NoneR-?#XR-?X<sp>R-<sp>YReturns range floor value
NoneR+?#XR+?X<sp>R+<sp>YReturns range ceiling
NoneSAVE#XSAVERSaves all data to
Returns transducer id.
‘AA…’ is an id string,
‘BB….’ is a model string,
‘CC…’ is the serial
number string, D.DD is the
firmware version
mode
value
EEPROM. Ready char
is sent when save is
complete
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Operation
NoneSC?#XSC?X<sp>SC<>YReturns the customer
span correction multiplier
CustSC<X>#XSC<sp>YRLoads a customer span
correction multiplier
NoneT?#XT?X<sp>T<sp>CReturns pressure type
NoneW?#XW?X<sp>W<sp>NNReturns the filter window
in %FS.
MensW<NN>#XW<sp>NNRSets the filter window in
counts. Readings inside
this window are filtered.
NoneZC?#XZC?X<sp>ZC<sp>YReturns customer zero
correction value in current
units.
CustZC<X>#XZC<sp>YRSets customer zero
correction value in current
units.
Table 6.1.3 – Mensor Legacy Command Set
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Operation
7. Maintenance and Recalibration
For contact details, please see Chapter 1 “General information” or the back page of the operating instructions.
7.1 Maintenance
The CPT6020 was designed for maintenance-free operation. User maintenance is not recommended. If you have questions not
covered by this manual, call 1-800-984-4200 (USA only), or 1-512-396-4200 for assistance, or send an email to techservices@
mensor.com.
7.1.1 Beyond the Warranty
Take advantage of Mensor’s expert product care. Mensor provides complete maintenance and calibration services, available for
a nominal fee. Our service staff is knowledgeable in the innermost details of all of our transducers. We maintain units that are in
operation in many different industries and in a variety of applications, and by users with a wide range of requirements. Returning
your transducer to Mensor for service benefits you in several ways:
• Our extensive knowledge of the transducer assures you that it will receive expert care.
• Repair or replacement of the CPT6020 transducers will be available up to 7 years after the production life cycle of the product,
pending external vendor parts or equivalent parts availability. The production life cycle is defined as the time from the product
series launch to the announcement of discontinuation (typically 8 to 10 years).
• All repairs should be performed by Mensor due to the complexity of performing these repairs.
7.2 Recalibration
The CPT6020 automatically calculates the pressure reading for all effects of temperature and non-linearity within the compensated
temperature range. The Process is referred to as dynamic compensation because each reading is adjusted before it is output.
Thus, a calibrated CPT6020 operated within its temperature band, and with proper zero and span adjustments, will provide
accurate pressure measurements.
The CPT6020 should have the calibration verified periodically to ensure stability. The recommended calibration interval for this
instrument is given in the Specifications section under “Calibration Interval” in Section 9.1.
.
7.2.1 Calibration Services by Mensor or WIKA worldwide
Mensor and WIKA worldwide have extensive experience and knowledge of Mensor products. Calibration of the transducers can be
performed at the addresses below or by competent internal or external labs using the procedures in this section.
WIKA operating instructions process pressure transducer, model CPT6020
Transducer
Maintenance and Recalibration
7.2.2 Environment
For maximum accuracy, allow the CPT6020 to warm up a minimum of 15 minutes in ambient temperature within the compensated
range prior to a calibration. In addition, the instrument should be at rest on a stable platform that is free of excessive vibration,
shock and with minimal temperature change.
7.2.3 Pressure Standards
Mensor recommends the use of appropriately accurate primary pressure standards when calibrating this instrument. Such
standards should be sufficient so that when the techniques of the ISO Guide to the Expression of Uncertainty in Measurement
(GUM) are applied, the instrument meets its accuracy statements as required by ISO/IEC 17025:2005, or other applicable
standards.
7.2.4 Media
The recommended calibration medium is dry nitrogen or clean dry instrument air. For ranges above 5 psi any liquid media
compatible with 316L SS is acceptable. A reference height variation between the standard and the CPT6020 can cause errors. A
calculation should be made to compensate for this difference.
7.2.5 Setup
The schematic in Figure 7.2.5 shows a typical setup used to calibrate the CPT6020.
Power
Supply
Communication
EN
Absolute
Under Test
Diaphragm
Capacitance
Gauge
Deadweight
Tester or
Primary
Standard
Supply
Vent
P - V
Controller
Objects in the dashed preimeter are only needed
for sub atmoshheric pressure points.
Figure 7.2.5 - Calibration Setup
When calibrating absolute transducers and approaching very low absolute pressures, you must use a needle valve or controlled
leak to maintain a small pressure (600 mTorr, 80 Pa recommended) throughout the system. If you try to run calibration points
below that pressure, the system will have significant pressure gradients in it unless left to stabilize for an extended period of time.
Needle
Valve
Vacuum
Pump
0020507001A 08/2018 EN
WIKA operating instructions process pressure transducer, model CPT6020
25
Maintenance and Recalibration
7.2.6 Calibration & Communication Software
The Operation and Calibration software utility is available on the Mensor.com website from the main menu select Service/
Calibration then Download Software then PC Software.
EN
The purpose of this software is to communicate with the CPT6020 transducer. Calibration of the transducer output and
configuration of various parameters can be accomplished. It has many features that allow you to read and adjust the rich feature
set including:
• Changing filter settings
• Modifying the output format of the sensor
• Changing the pressure units output
It also has many features to adjust various calibration parameters after the appropriate password is sent:
• Setting the calibration date
• Setting the calibration interval
• Setting custom pressure units
• Setting Zero and Span
• Resetting the calibration password
• Restoring the factory calibration
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WIKA operating instructions process pressure transducer, model CPT6020
Maintenance and Recalibration
EN
0020507001A 08/2018 EN
WIKA operating instructions process pressure transducer, model CPT6020
27
EN
Dismounting, Return and Disposal
8. Dismounting, Return and Disposal
WARNING!
Physical injuries and damage to property and the environment through residual media
Residual media in the dismounted instrument can result in a risk to persons, the environment and equipment.
▶
Wear the requisite protective equipment (see Chapter 3.6 “Personal protective equipment”).
▶
Observe the information in the material safety data sheet for the corresponding medium.
▶
Wash or clean the dismounted instrument, in order to protect persons and the environment from exposure to
residual media.
8.1 Dismounting
WARNING!
Physical injuries and damage to property and the environment through residual media
Upon contact with hazardous media (e.g. oxygen, acetylene, flammable or toxic substances), harmful media (e.g.
corrosive, toxic, carcinogenic, radioactive), and also with refrigeration plants and compressors, there is a danger of
physical injuries and damage to property and the environment.
▶
Before storage of the dismounted instrument (following use) wash or clean it, in order to protect persons and the
environment from exposure to residual media.
▶
Wear the requisite protective equipment (see Chapter 3.6 “Personal protective equipment”).
▶
Observe the information in the material safety data sheet for the corresponding medium.
WARNING!
Risk of burns
During dismounting there is a risk of dangerously hot media escaping.
▶
Let the instrument cool down sufficiently before dismounting it!
WARNING!
▶
Power should switched off before disconnecting the device.
WARNING!
Physical injury
When dismounting, there is a danger from aggressive media and high pressures.
▶
Wear the requisite protective equipment (see Chapter 3.6 “Personal protective equipment”).
▶
Observe the information in the material safety data sheet for the corresponding medium.
▶
Only disconnect the pressure measuring instrument/measuring assembly/test and calibration installations once
the system has been de-pressurised.
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WIKA operating instructions process pressure transducer, model CPT6020
Dismounting, Return and Disposal
8.2 Return
Strictly observe the following when shipping the instrument:
All instruments delivered to WIKA or Mensor must be free from any kind of hazardous substances (acids, bases, solutions, etc.)
and must be cleaned before being returned.
WARNING!
Physical injuries and damage to property and the environment through residual media
Residual media in the dismounted instrument can result in a risk to persons, the environment and equipment.
▶
With hazardous substances, include the material safety data sheet for the corresponding medium.
When returning the instrument, use the original packaging or a suitable transport packaging.
To avoid damage:
1. Wrap the instrument in an anti-static plastic film.
2. Place the instrument along with shock-absorbent material in the packaging.
Place shock-absorbent material evenly on all sides of the transport packaging.
3. If possible, place a bag containing a desiccant inside the packaging.
4. Label the shipment as a highly sensitive measuring instrument.
Information on returns can be found under the heading “Service” on our local website.
EN
8.3 Disposal
Incorrect disposal can put the environment at risk.
Dispose of instrument components and packaging materials in an environmentally compatible way and in accordance with the
country-specific waste disposal regulations.
This marking on the instruments indicates that they must not be disposed of in domestic waste. The disposal is
carried out by return to the manufacturer or by the corresponding municipal authorities.
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WIKA operating instructions process pressure transducer, model CPT6020
29
EN
Specifications
9. Specifications
Accuracy specications presented herein are obtained by comparison with primary standards traceable to a national metrology
institute or recognized international standard organization. These specications 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 certicate.
Mensor reserves the right to change specications without notice.
9.1 Measurement Specification
Accuracy
Measuring ranges
Gauge pressure0 ... 0.36 to 0 ... 1500 psig
Bi-directional pressure
Absolute pressure0 ... 5 psia to 0 ... 15,015 psia
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
2) The negative portion of a bidirectional range has the same accuracy as the equivalent positive range.
1)
2)
1)
instrument, long-term stability, inuence of ambient conditions, drift and temperature eects over the compensated range with recommended zero point adjustment every 30 days.
0.020% FS
(0 ... 25 mbar to 0 ... 100 bar)
± 0.18 to -15 ... 1500 psig
(± 12.5 mbar to -1 ... 100 bar)
(0 ... 350 mbar to 0 ... 1001 bar abs.)
0.020% of reading
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WIKA operating instructions process pressure transducer, model CPT6020
Specifications
9.2 General Specification
Case
Orientation effectsNegligible – completely removable with re-zeroing
WIKA operating instructions process pressure transducer, model CPT6020
31
Specifications
9.4 Dimensions in mm (in)
Note: Reference port is for gauge type sensors only; for absolute type, and sealed gauge type, the port is plugged.)
EN
108.9mm
4.29in
6 PIN M8 CONNECTOR
1/16" BARBED
REFERENCE PORT
31.8mm
1.25in
85.7mm
3.37in
6 PIN M8 CONNECTOR
117.6mm
4.63in
SEAL SCREW
31.8mm
1.25in
85.7mm
3.37in
122.9mm
4.84in
6 PIN M8 CONNECTOR
SEAL SCREW
31.8mm
1.25in
95.0mm
3.74in
32
18.9mm
.74in
SAE J514 37° FLARE PORT
7/16-20 THREAD
≤1500 psi
18.8mm
.74in
SAE J514 37° FLARE PORT
7/16-20 THREAD
1500 to 6000 psi
6000 to 15000 psi
25.3mm
1.00in
AUTOCLAVE F250C
FEMALE PORT
WIKA operating instructions process pressure transducer, model CPT6020
0020507001A 08/2018 EN
Accessories
10. Accessories
10.1 Fittings & Gaskets
Mensor supplies a customer specified fitting with each transducer. Available fittings to connect to the transducer have the following
Mensor Part numbers:
Part NumberDescription
6000604023¼”Male NPT
60006040247/16-20 SAE
6000604025¼ BSPP
4250040006Copper gasket washer
Many other fittings are available, consult the factory if you need assistance.
10.2 Accessories
Part NumberDescription
4050060017Communication Cable
0020528001Power Supply & Communication Cable
EN
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WIKA operating instructions process pressure transducer, model CPT6020
33
WIKA subsidiaries worldwide can be found online at www.wika.com.
Mensor LP
201 Barnes Drive
San Marcos, TX 78666 • USA
Tel. (+1) 512 3964200-15
Fax (+1) 512 3961820
E-Mail sales@mensor.com
www.mensor.com
Imported to Europe by:
WIKA Alexander Wiegand SE & Co. KG