WIKA CPG1200 User manual

Operating instructions
Betriebsanleitung
EN
DE
Digital pressure gauge model CPG1200
Digitalmanometer Typ CPG1200
Digital pressure gauge model CPG1200

2
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WIKA operating instructions, model CPG1200
EN
DE
Operating instructions model CPG1200 Page 3 - 76
Betriebsanleitung Typ CPG1200 Seite 77 - 150
Further languages can be found at www.wika.com.
© 05/2023 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
WIKA®is a registered trademark in various countries.
WIKA®ist eine geschützte Marke in verschiedenen Ländern.
Prior to starting any work, read the operating instructions!
Keep for later use!
Vor Beginn aller Arbeiten Betriebsanleitung lesen!
Zum späteren Gebrauch aufbewahren!

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Contents
Contents
1. General information 6
1.1 Abbreviations, definitions. . . . . . . . . . . . . . . . . .7
1.2 Explanation of symbols . . . . . . . . . . . . . . . . . .7
2. Short overview 8
2.1 Overview . . . . . . . . . . . . . . . . . . . . . . .8
2.2 Description . . . . . . . . . . . . . . . . . . . . . .8
2.3 Scope of delivery . . . . . . . . . . . . . . . . . . . .9
2.4 Product pass . . . . . . . . . . . . . . . . . . . . . .9
3. Safety 11
3.1 Intended use . . . . . . . . . . . . . . . . . . . . . 11
3.2 Improper use . . . . . . . . . . . . . . . . . . . . . 12
3.3 Personnel qualification . . . . . . . . . . . . . . . . . 12
3.4 Labelling, safety marks . . . . . . . . . . . . . . . . . 13
4. Transport, packaging and storage 15
4.1 Transport . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Packaging and storage . . . . . . . . . . . . . . . . . 15
5. Design and function 16
5.1 Front foil . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Voltage supply . . . . . . . . . . . . . . . . . . . . 19
5.3 USB interface. . . . . . . . . . . . . . . . . . . . . 19
5.4 Process connections . . . . . . . . . . . . . . . . . . 19
5.5 Equipotential bonding . . . . . . . . . . . . . . . . . . 20
5.6 Options . . . . . . . . . . . . . . . . . . . . . . . 20
5.6.1 Instrument protective cap . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.6.2 Integrated data logger . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.6.3 Subsequently activating/enabling the data logger . . . . . . . . . . . .21
5.6.4 Bluetooth®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6. Commissioning, operation 22
6.1 Mounting the instrument . . . . . . . . . . . . . . . . . 23
6.1.1 Sealing the process connection. . . . . . . . . . . . . . . . . . . . . .23
6.1.2 Installing the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2 Electrical commissioning . . . . . . . . . . . . . . . . . 24
6.2.1 Battery operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
6.2.2 Mains operation via USB power supply unit . . . . . . . . . . . . . . . 26

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Contents
6.3 Instrument operation/Basic functions. . . . . . . . . . . . . 28
6.3.1 Switching on/Switching off. . . . . . . . . . . . . . . . . . . . . . . . .28
6.3.2 Zero point adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.3.3 MAX/MIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
7. Operation via menu functions 29
7.1 Short overview menu functions . . . . . . . . . . . . . . . 29
7.2 Measuring mode . . . . . . . . . . . . . . . . . . . 33
7.2.1 Pressure unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.2.2 Peak values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
7.2.3 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.2.4 Tare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
7.2.5 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
7.2.6 Sample rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
7.2.7 Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
7.2.8 Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
7.2.9 Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
7.2.10 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.3 Logger . . . . . . . . . . . . . . . . . . . . . . . 40
7.3.1 Start / Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.3.2 Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
7.3.3 Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
7.3.4 Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7.3.5 Clear last . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.3.6 Clear all . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.3.7 Rename . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
7.4 Settings. . . . . . . . . . . . . . . . . . . . . . . 44
7.4.1 Bluetooth®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.4.2 Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.4.3 Auto-off time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.4.4 Light off time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
7.4.5 User-defined unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
7.4.6 Factory reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.5 Communication with WIKA-Cal calibration software. . . . . . . . 47
7.5.1 Activating Bluetooth®in the CPG1200 . . . . . . . . . . . . . . . . . .47
7.5.2 WIKA-Cal configuration (also possible with the demo version). . . . .48
7.5.3 WIKA-Cal Log-Template . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.6 App “myWIKA device” . . . . . . . . . . . . . . . . . . 51
7.7 Firmware update . . . . . . . . . . . . . . . . . . . 52
8. Faults 52

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Contents
9. Maintenance, cleaning and calibration 54
9.1 Maintenance . . . . . . . . . . . . . . . . . . . . . 54
9.2 Battery replacement . . . . . . . . . . . . . . . . . . 54
9.3 Cleaning . . . . . . . . . . . . . . . . . . . . . . 56
9.4 Calibration. . . . . . . . . . . . . . . . . . . . . . 57
10. Dismounting, return and disposal 57
10.1 Dismounting . . . . . . . . . . . . . . . . . . . . . 58
10.2 Return . . . . . . . . . . . . . . . . . . . . . . . 58
10.3 Disposal . . . . . . . . . . . . . . . . . . . . . . 59
10.3.1 Disposal of electrical appliances . . . . . . . . . . . . . . . . . . . . . 59
10.3.2 Disposal of batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
11. Specifications 60
11.1 Specifications for CPG1200 . . . . . . . . . . . . . . . . 60
11.2 Radio standard . . . . . . . . . . . . . . . . . . . . 65
11.2.1 IC warnings RSS-Gen & RSS-247 statement . . . . . . . . . . . . . . 65
11.2.2 FCC warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
11.3 Approvals . . . . . . . . . . . . . . . . . . . . . . 67
11.4 Certificates . . . . . . . . . . . . . . . . . . . . . 68
11.5 Dimensions in mm [in] . . . . . . . . . . . . . . . . . . 69
11.5.1 Digital pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . .69
11.5.2 Process connections. . . . . . . . . . . . . . . . . . . . . . . . . . . .70
12. Accessories 72
Annex 1: EU declaration of conformity 74
Annex 2: UK declaration of conformity 75

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1. General information
1. General information
■The instrument described in the operating instructions has been manufactured
using state-of-the-art technology. All components are subject to stringent quality and
environmental criteria during production. Our management systems are certified in
accordance with 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 range of use.
■The operating instructions are part of the product and must be kept in the immediate
vicinity of the instrument and readily accessible to skilled personnel at any time. Pass
the operating instructions on to the next operator or owner of the instrument.
■Skilled personnel must have carefully read and understood the operating instructions
prior to beginning any work.
■In case of a different interpretation of the translated and the English operating
instructions, the English wording shall prevail.
■The general terms and conditions contained in the sales documentation shall apply.
■Subject to technical modifications.
■Factory calibrations/DAkkS calibrations are carried out in accordance with
international standards.
■Further information:
WIKA Alexander Wiegand SE & Co. KG
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: CT 10.20
- Contact: Tel.: [phone]
[e-mail]

7WIKA operating instructions, model CPG1200
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1. General information
1.1 Abbreviations, definitions
■Bullet
▶Instruction
1. ... x. Follow the instruction step by step
⇒Result of an instruction
→See ... cross-references
1.2 Explanation of symbols
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.
Information
... points out useful tips, recommendations and information for efficient and
trouble-free operation.

8WIKA operating instructions, model CPG1200
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2. Short overview
2.1 Overview
2.2 Description
The model CPG1200 digital pressure gauge combines the high accuracy of digital
electronics with the convenience and easy handling of an analogue master gauge. With
an accuracy of ±0.5 % FS or ±0.25 % FS, the CPG1200 can be used as a calibration
instrument as well as a reference instrument for a range of applications such as
hydrostatic pressure testing, burst testing, leak measurement, setting of switch points
for pressure switches and analysis of process pressures, as well as for any application
where high-accuracy pressure measurement is needed.
Many user-configurable functions have been integrated into the CPG1200 (e.g. logging
(only optional), sampling rate, tare, damping, automatic power-off and Min./Max.
measurement).
The model CPG1200 is equipped with a Micro-USB interface for simple and
interference-resistant data transmission – and can optionally be expanded to include
Bluetooth®for wireless communication.
Once the digital pressure gauge is configured, the settings can be password-protected
to prevent unauthorised changes to the configuration.The password protection is
implemented via the WIKA-Cal calibration software or the free-of-charge WIKA-DCS
software.
4
1
2
3
1Display
2Port for Micro-USB type B
3Controls
4Process connection
2. Short overview

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2. Short overview
2.3 Scope of delivery
■Digital pressure gauge model CPG1200
■3 x 1.5 V AA alkaline batteries (included in packaging)
■Operating instructions
■Ordered accessories
Cross-check scope of delivery with delivery note.
Manufacturer-dependent colour shades of the case do not lead to any
quality impairment.
2.4 Product pass
There are three ways to access the instrument-specific product pass.
■Via the QR code on the product label. No serial number must been entered here. One
gets directly to the data of the instrument in question.
■Via the product details page of the CPG1200
■Via the link here in the OI
The product pass can be retrieved from the product page or directly from the
corresponding web application.
Web application Product page
Via the QR code on the product label of the instrument, one accesses directly the
individual product pass contents/website. No serial number needs to be entered.
WIKA - intelligent serial number
The WIKA intelligent serial number and the corresponding web application is the central
tool in which all the required information on the specific instrument can be found.

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2. Short overview
After entering 1the intelligent serial number into the web application, all instrument-
specific details on the manufactured version are displayed.
Under 2“Product pass”, the most important product information on the instrument,
such as measuring range, accuracy, process connection, date of manufacture, etc., can
be retrieved.You can also download (calibration) certificates directly from this location.
Under 3“Article details”, further article details are listed, as well as documentation
such as the data sheet 6and current operating instructions 7.
1
2

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2. Short overview / 3. Safety
From this view, the required information can be printed directly via the 4[Print view].
Furthermore, by clicking on 5[E-mail], an e-mail is opened which already contains the
intelligent serial number of the currently retrieved instrument and this can be sent to any
recipient, but also, for example, to a corresponding WIKA contact, in order to reorder
exactly the same product, for example.
34
6
5
7
3. Safety
3.1 Intended use
This CPG1200 digital pressure gauge can be used as a calibration instrument and
for any application (indoor/outdoor) that requires highly accurate measurement of
pneumatic or hydraulic pressures.
Measuring ranges between -1 ... 1,000 bar [-14.5 ... 15,000 psi] can be measured.
The CPG1200 must only be operated with media of fluid group 2 in accordance with
directive 2014/68/EU article 13, which are considered harmless for the wetted parts
across the entire area of application of the instrument. Do not use the CPG1200 with
abrasive and viscous media or oxygen.
Use with oxygen is possible as an option. In this case, please contact WIKA.
For contact details, see chapter 1 “General information” or the back page of
the operating instructions.
The use of unstable fluids, especially hydrogen, must be avoided.
If the CPG1200 is used in applications with oil as a pressure medium, make sure it
will not be used with combustibles or gases directly after that because it can lead to
dangerous explosions and danger to personnel and machinery.

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The instrument has been designed and built solely for the intended use described here,
and may only be used accordingly.
The technical specifications contained in these operating instructions must be
observed, see chapter 11 “Specifications”. Improper handling or operation of the
instrument outside of its technical specifications requires the instrument to be taken out
of service immediately and inspected by an authorised WIKA service engineer.
Handle electronic measuring instruments with the required care (protect from humidity,
impacts, strong magnetic fields, static electricity and extreme temperatures, do not
insert any objects into the instrument or its openings).
The manufacturer shall not be liable for claims of any type based on operation contrary
to the intended use.
3.2 Improper use
Any use beyond or different to the intended use is considered as improper use.
■Use of this instrument in safety or emergency shutdown devices
■Unauthorised modifications to the pressure transmitter
■Use in hazardous areas.
■Use with abrasive and viscous media.
WARNING!
Physical injuries and damage to property and the environment
through residual media
Residual media in dismounted pressure transmitters can result in a risk to
persons, the environment and equipment.
▶Wear the requisite protective equipment.
▶For cleaning the instrument, see chapter 9.3 “Cleaning”.
3.3 Personnel qualification
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, authorised 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 recognising potential hazards.
3. Safety

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Special operating conditions require further appropriate knowledge, e.g. of aggressive
media.
3.4 Labelling, safety marks
The labelling, safety markings must be maintained in a legible condition.
Position of product labels
1Position of product label
2Position of labelling for the batteries
3Position of labelling for general information
Product label (example)
The product label is located on the rear of the CPG1200 on the cover of the battery
compartment.
3
2
1
WIKA Alexander Wiegand SE & Co. KG 63911 Klingenberg / Germany
2023-04
WIKA Instruments Ltd, Sevenoaks, TN14 5GY / UK
X8WBC805M
Contains FCC ID:
4100A-BC805M
Contains IC:
oxygen
i#: 12345678901
P#: 12345678
5V, max. 0.1 A
-10 ... + 50 °CTamb:
0,25 %PS: 10 bar
0 ... 10 barPressure range:
CPG1200-1ID-B
5
4
9
7
10
6
8
3
2
1
3. Safety

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Labelling on the process connection
The label is located on the upper half of the CPG1200 process connection.
1QR code with link to product pass
2Radio approval
3Date of manufacture (YYYY-MM)
4Serial number
5Article number
6Voltage supply
7Ambient temperature range
8PS = maximum allowable pressure and accuracy
9Pressure measuring range
10 Order code for the approval-relevant part
Symbols
Before mounting and commissioning the instrument, ensure you read
the operating instructions!
Do not dispose of with household waste. Ensure a proper disposal in
accordance with national regulations.
Special version
The instrument is oil- and grease-free and suitable for oxygen applications.
The QR code is a link and leads directly to the product pass for the
instrument. For further information, see chapter 2.4 “Product pass”.
i#: 12345678901
4
oxygen
3. Safety

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4. Transport, packaging and storage
4. Transport, packaging and storage
4.1 Transport
Check the CPG1200 for any damage that may have been caused.
Obvious damage must be reported to the manufacturer immediately.
CAUTION!
Damage through improper transport
With improper transport, damage to property can occur.
▶When unloading packed goods upon delivery as well as during internal
transport, proceed carefully and observe the symbols on the packaging.
▶With internal transport, observe the instructions in chapter
4.2 “Packaging and storage”.
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 equalise.
4.2 Packaging and storage
Do not remove packaging until just before mounting (operation).
Keep the packaging as it will provide optimum protection during transport (e.g. change
in installation site, sending for repair).
Permissible conditions at the place of storage:
■Storage temperature: -18 ... +55 °C [-0.4 ... +131 °F]
■Humidity: < 84 % relative humidity (non-condensing)
■Remove removable batteries for storage.
Avoid exposure to the following factors:
■Direct sunlight or proximity to hot objects
■Mechanical vibration, mechanical shock (putting it down hard)
■Soot, vapour, dust and corrosive gases
■Hazardous environments, flammable atmospheres
Store the instrument in its original packaging in a location that fulfils the conditions
listed above. If the original packaging is not available, pack and store the instrument as
described below:
1. Remove the batteries from the instrument and store them separately, see chapter
9.2 “Battery replacement”.
2. Place the instrument, along with the shock-absorbent material, in the packaging.
3. If stored for a prolonged period of time (more than 30 days), place a bag containing
a desiccant inside the packaging.

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5. Design and function
5. Design and function
5.1 Front foil
Item Symbol The symbol is displayed on:
1■Exceeding or dropping below the pressure range
■Exceeding or dropping below the temperature range
■Logger memory is more than 90 % full
■Instrument defect or battery status < 10 %
2It is locked, if the [ZERO/▲] or [MENU/◀▶] buttons have been
locked via WIKA-Cal and must be pressed manually.
The password protection is only implemented via the WIKA-Cal
calibration software or the free-of-charge WIKA-DCS software.
3Battery symbol
■The battery symbol is displayed only during battery operation.
■On connection of a USB power supply unit, no battery symbol is displayed.
...
Battery status 100 % ... 40 %
■Outline is displayed continuously
■One segment is displayed for each 20 %
Battery status 20 %
■Outline is displayed continuously
■New batteries must be used, see chapter
9.2 “Battery replacement”.
5
9
78
6
12
10
4
3
2
11
13 14 1

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Item Symbol The symbol is displayed on:
4Pressure indication
The 4 ½-digit 15-segment display always indicates the current
pressure value.
If the pressure value is no longer current, lines will be displayed (in
low-power mode over 10 s).
5Matrix field serves as menu and secondary display
The matrix field consists of 4 x 21 cells (rows x columns) and
serves as a menu and secondary display.
10 Bar graph indicates the current pressure graphically
The bar graph consists of 20 segments and two end points at the
front and rear ends. The bar graph indicates the current pressure
proportionally to the measuring range. If the measuring range has
been underrun, the front point lights up; with an overrun, the rear
point lights up.
11 Tare TARE function active
12 Log Logger function active
13 Alarm
Measured value has exceeded or dropped below the alarm limits
14 Bluetooth®symbol
■Symbol is blinking: Bluetooth®is active but not connected
■Symbol is shown continuously: Bluetooth®is active and
connected
Further definitions
“XXX” Menu XXX is accessed
[XXX] Press XXX button
XXX Menu will be displayed
Function buttons
The CPG1200 is controlled via 4 function buttons, with each button having a main and
a secondary function. In general, the information printed on the buttons corresponds
to the main function: “ZERO”, “LIGHT” “MENU”, “ON/OFF”. Once the [MENU/◀▶]
button is activated, the secondary function applies.These are, from left to right: Cursor
up [UP/▲], cursor down [DOWN/▼], left/right cursor [L/◀] or [R/▶] and [HOME].
If you are in the MENU, if there is no further input within 30 seconds, HOME
is automatically executed. This does not apply when one is in the input
mode for a number or a name.
5. Design and function

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Item Button
6On/Off or Home button
The main function is switching the CPG1200 on and off.
If the digital pressure gauge is already in menu mode, a short press on
the [On/Off] button brings up “HOME”. A long press (at least 2 seconds)
switches the CPG1200 off.
7MENU button
Calling up the menu
By pressing the [MENU/◀▶] button, menu mode will be selected. If the
CPG1200 is already in menu mode, the operation of “◀” or “▶”will depend
on the display. If the button is pressed for longer, after 2 seconds the cursor
switches (left ◀ or ▶right).
If the arrow is pointing to the left (◀), releasing the [MENU/◀▶] button
immediately jumps back one menu level.
Inputs are confirmed with the [MENU/◀▶] button.
8LIGHT button
Turning the backlighting on and off
By pressing the [LIGHT/▼] button (short press or long press), the light will
be switched on.The duration of the light is dependent on “LIGHT OFF” in
“Setting”.
■1 x press of the [LIGHT/▼] button (Light = On)
■Pressing [LIGHT/▼] button again (Light = Off)
If the CPG1200 is in Menu Mode, with a short press on the [LIGHT/▼]
button, the cursor can be moved downwards.
9ZERO button
The current pressure value will be set to “0” (gauge) or reference pressure
(abs.).
By pressing the [ZERO/▲] button, the current pressure value is set to “0”.
A maximum of 5 % of the measuring span can be corrected.
If the CPG1200 is in menu mode, with a short press on the [ZERO/▲]
button, the cursor can be moved upwards.
For gauge pressure measuring instruments, in the range of ±5 % of the zero
point, the measured value will be set to “0”.
With absolute pressure sensors, on pressing the [ZERO/▲] button, an input
window appears. Here, the current reference pressure must be entered.
The reference pressure must also be within ±5 % of the initial absolute
pressure of the instrument, then the measured value will be set to the
reference pressure entered.
5. Design and function

19WIKA operating instructions, model CPG1200
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5.2 Voltage supply
Three AA alkaline batteries are used as the voltage supply for the instrument.These
are included in delivery. Alternatively, the instrument can be supplied with power via the
USB interface. A USB power supply unit can be ordered as an accessory, see chapter
12 “Accessories”.
The battery life time is up to 4,000 hours for continuous operation (without backlighting
and with Bluetooth®deactivated).
In the upper right half of the display there is a symbol for the battery capacity. For the
explanation of symbols, see chapter 5.1 “Front foil”.
The battery status display lights up
Replace the battery to avoid data loss when logging or general downtime,
see chapter 9.2 “Battery replacement”.
5.3 USB interface
The Micro-USB, type B interface is located under the side cover and is marked with the
USB symbol. It can be used to read out data, configure the instrument via software and
supply it with power.
Do not hold the instrument by the rubber USB cover.
The CPG1200 cannot be charged via the USB interface.
Used rechargeable batteries are not charged.
5.4 Process connections
The CPG1200 is available with all industry-standard process connections, as standard
G ½ B is specified.
When screwing the NPT thread of the CPG1200 to an adapter or a pressure connection,
it is necessary to use additional sealant between the threads, e.g. PTFE tape.The hose,
lines and fittings etc. must always be approved, at least, for the operating pressure
which corresponds to the maximum pressure or the measuring range of the instrument.
In addition, there must be no leaks during calibration process - if necessary, seal using
PTFE tape.
The process connection is permanently connected to the case and cannot
be aligned freely.
5. Design and function

20 WIKA operating instructions, model CPG1200
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14603921.02 06/2023 EN/DE
5.5 Equipotential bonding
The instrument must be included in the equipotential bonding / grounding of the
application via the process connection.The sealing, e.g. for NPT process connection,
must be conductive to avoid potential differences caused by isolated mounting.
5.6 Options
5.6.1 Instrument protective cap
Optionally, the CPG1200 can be fitted with an impact-resistant instrument protective
cap.
5.6.2 Integrated data logger
The CPG1200 can, optionally, be configured with an integrated data logger.
This data logger can be switched on and set via “MENU” / “Logger” (respectively).
If the log rate time is longer than the measuring rate, the CPG1200 will take the average
pressure value instead of the current pressure value.
Example:
The average value should be measured over 60 seconds.
▶Setting log rate: 60 s
▶Measuring rate: ≥ 10/s
⇒Every 60 seconds 1x P_ave., 1x P_max, 1x P_min and 1x Temp. will be
recorded
The data logger can be enabled/activated on-site subsequently.
For further process, see chapter 5.6.3 “Subsequently activating/enabling
the data logger”.
5. Design and function