Pfeiffer Vacuum TPG 202 User manual

PG 0027 BEN/E (1711)
OPERATING INSTRUCTIONS EN
Translation of the original instructions
TPG 202
Measurement unit

Table of contents
2
Table of contents
1 About this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Improper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Product description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Product identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.3 Range of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Transport and storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.1 Vacuum connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.2 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.3 USB connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.2 Storing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.3 Choose unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.4 TPG 202 calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.5 PC mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.6 Configuring the data exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.7 Pfeiffer Vacuum Protocol for "USB" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
10 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
11 Technical data and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
11.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
11.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
11.3 Gas correction factor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Declaration of conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

About this manual
3
1 About this manual
1.1 Validity
This operating manual is for customers of Pfeiffer Vacuum. It describes the functioning
of the designated product and provides the most important information for safe use of
the unit. The description follows applicable EU guidelines. All information provided in this
operating manual refers to the current state of the product's development. The documen-
tation remains valid as long as the customer does not make any changes to the product.
Up-to-date operating instructions can also be downloaded from
www.pfeiffer-vacuum.com.
1.2 Conventions
Safety instructions The safety instructions in Pfeiffer Vacuum operating instructions are the result of risk
evaluations and hazard analyses and are oriented on international certification stan-
dards as specified by UL, CSA, ANSI Z-535, SEMI S1, ISO 3864 and DIN 4844. In this
document, the following hazard levels and information are considered:
Pictographs
DANGER
Imminent danger
Indicates an imminent hazardous situation that will result in death or serious injury.
WARNING
Possibly imminent danger
Indicates an imminent hazardous situation that can result in death or serious injury.
CAUTION
Possibly imminent danger
Indicates an imminent hazardous situation that can result in minor or moderate injury.
NOTICE
Command or note
Command to perform an action or information about properties, the disregarding of
which may result in damage to the product.
Prohibition of an action to avoid any risk of accidents, the disregarding
of which may result in serious accidents
Warning of a displayed source of danger in connection with operation of
the unit or equipment
Command to perform an action or task associated with a source of dan-
ger, the disregarding of which may result in serious accidents

4
Safety
Instructions in the
text
Work instruction: here you have to do something.
Abbreviations TPG: Measurement and control unit
2Safety
2.1 Safety precautions
●Observe the safety and accident prevention regulations.
●Check regularly that all safety precautions are being complied with.
●The unit has been accredited with protection class IP 40. Take necessary measures
when installing into ambient conditions, which afford other protection classes.
●Consider possible reactions between the materials and the process media.
●Consider possible reactions of the process media due to the heat generated by the
product.
●Do not modify or alter the unit yourself.
●Ensure specified mains voltage.
●Note the shipping instructions, when returning the unit.
●Inform yourself about a possible contamination before starting work.
●Adhere to the relevant regulations and take the necessary precautions, when handling
contaminated parts.
●Communicate the safety instructions to other users.
2.2 Proper use
The measurement unit TPG 202 serves exclusively to provide total measurements in the
range 1200 ... 5·10-4 hPa. It may only be connected to components specifically provided
for this purpose.
2.3 Improper use
Improper is:
●Uses not covered above, and, in particular:
– connection to pumps and units which is not permitted in their operating instructions;
– connection to units which contain touchable and voltage carrying parts.
Improper use will cause any rights regarding liability and guarantees to be forfeited.
Important information about the product or this document
Duty to inform
Each person involved in the installation or operation of the unit must read and observe
the safety-related parts of these operating instuctions.
The operator is obligated to make operating personnel aware of dangers originating
from the unit or the entire system.

Product description
5
3 Product description
3.1 Product identification
To correctly identify the product when communicating with Pfeiffer Vacuum, always have
the information from the rating plate available.
Fig. 1: Product identification on the rating plate (example)
3.2 Function
The measurement unit TPG 202 is equipped with a combined Piezo-/Pirani sensor and
enables total pressure measurements in the range of 1200 ... 5·10-4 hPa.
Fig. 2: TPG 202
D-35641 Asslar
Mod.: CPT 100
Range: 2000 - 1 mbar
Mod.-No.: PT R31 130
Ser.-No.:
42000618
Made in Germany
2013/03
4236532780
1 Operating mode
2 "Change battery" display
3 Pressure reading, refresh: 1.0 s
4 Measurement unit "mbar, Torr, Pa,
hPa"
5 Mode key
6 Small flange DN 16 ISO-KF
7 Battery compartment cover
8 USB port
9 Active gas correction factor
10 Connection for line adapter 12 V=, 50 mA,
plug 2.5 mm (+ at tip)
1
9
234
5
6
7
8
10
2: GND
1: 12 V (max. 15 V)

6
Transport and storage
Scope of delivery The following positions are included in the delivery consignment:
– TPG 202
– Operating instructions
– Block battery (9 V)
3.3 Range of application
The unit TPG 202 must be installed and operated in the following ambient conditions:
4 Transport and storage
Units without external protection must not come into contact with electrostatically charge-
able materials and must not be moved within electrical or magnetic fields.
In rooms with moist or aggressive atmospheres, the unit must be airproof shrink-
wrapped in a plastic bag together with a bag of desiccant.
5 Installation
5.1 Vacuum connection
Remove the protective cover, which is required during maintenance work.
Make vacuum connection via small flange DN 16 ISO-KF.
5.2 Electrical connection
Battery operation Before operating the unit a suitable battery or an accumulator must be inserted.
Pull the battery cover on the back downwards and insert the battery.
Installation location weather protected (indoor)
Protection class IP40
Installation altitude max. 2000 m
Ambient temperature +5 – +40°C
Relative humidity max. 85 %
Atmospheric pressure 860 hPa – 1060 hPa
CAUTION
Excess pressure in the vacuum system > 1000 hPa
Danger of injuries by inadvertent opening of elements under stress due to parts flying
around.
Only use stressed elements, which can be opened and closed with appropriate tools
(e.g. strap retainer-tension ring).
CAUTION
Excess pressure in the vacuum system 1500 to 4000 hPa
Damage to health through emission of process media, because elastomer washers
cannot withstand the pressure.
Use sealing rings with an outer centering ring.

Installation
7
Close the cover again by pushing it upwards until it snaps into position.
Battery types:
– 9 V Alkali Mangan block battery type 6LR 6; lifetime approx. 40 h
– 9 V Lithium block battery; lifetime approx. 100 h
Operation with power
supply The TPG can be operated alternatively to battery operation with an external power sup-
ply (12V). The sockets for the power supply and the USB service interface are located
behind a dust protection lid.
Open the lid carefully and pull it out slightly.
5.3 USB connection
The USB port can be connected to a PC, for instance in order to read out the data storage
unit, document measurements, or configure the device using Windows1) DokuStar soft-
ware.
Poor battery power
Poor battery power is indicated by the „BAT“-prompt in the upper left corner of the dis-
play. Operation of the unit is still possible. Once the battery is used up, the unit switches
off.
Change battery or accumulator or recharge accumulator.
If the unit is not used for a longer time, remove the battery to avoid damages from
leaking chemicals.
Battery/Accumulator
An inserted battery can remain with attached power supply in the unit. An inserted ac-
cumulator is not loaded with attached power supply, but can remain in the unit.
Use commercially available chargers for loading of accumulators.
1) Windows® is a registered trademark of the Microsoft Cooperation.

8
Installation
Mini socket type B
Install USB driver The requisite USB driver TPG 202 can be found on the USB drive in the accessories
case (PT 350 102 -T) or at www.pfeiffer-vacuum.de/Downloads/Software.
Insert the USB drive into the PC's USB port.
Start installation:
– Laufwerk/USB-Treiber TPG/Setup.EXE
Follow the rest of the installation instructions.
Connect TPG 202 to the PC using a USB cable (from the accessories case).
Pin Assignment
1VCC,+5V
2Data-
3Data+
4GND
5GND

Operation
9
6Operation
6.1 Switching on
Select operating
mode Depending on the last set operating mode, one of the two operating modes appears:
Display mode (rAtE: off)
Device shut down; data storage deactivated (see p. 11, chap. 6.3)
Storage mode (rAtE: on)
Device shut down; data storage activated (see p. 11, chap. 6.3)
Symbols to the left of the pressure reading:
Press "mode"
"cont," continuous operation
"auto off,"
device will automatically shut down in 20 s
Logging data:
Press 1x --> data storage unit is erased and
logging starts at the selected logging interval
Data storage is active
mode
If "auto off" appears, the device will automatically shut down
in 20 s.
If "cont" appears, the device is in continuous operation.
If "auto off" appears, the device will automatically shut down
in 20 s.
If no keys are pressed, the device will switch into auto-off
mode in 4 seconds.
The current applied pressure appears in the display.
Measurement values are stored according to the configured
storage interval.
mode
mbar
mode
mbar
mode
mbar
mode
mbar
mode

10
Operation
6.2 Storing Data
Deleting data Device shut down; data storage activated (see p. 11, chap. 6.3)
If a key is pressed, the contents of the data storage unit will be erased.
Store data
The device will stay on until it is manually shut down.
Quit storage mode
Storage stops as soon as the storage unit is full (max. of 2,000 measurement values) or
the device is shut down.
Setting the storage
rate In order to configure the storage interval, the device's configuration mode must be acti-
vated.
If no key is pressed within 10 s, the device will switch into "auto-off" mode and the cur-
rently configured storage interval will remain unchanged.
If "auto off" appears, the device will automatically shut down
in 20 s.
If no keys are pressed, the device will switch into auto-off
mode in 4 seconds
mode
mbar
mode
The current applied pressure appears in the display.
Measurement values are stored according to the configured
storage interval.
Double keystroke: device switches into auto-off mode and
will shut down automatically in approximately 10 s.
mbar
mode
mbar
mode
mode
Condition: Measurement device is shut down!
Hold down the mode key of the shut-down device for ap-
proximately 5 seconds until the "rAtE" display appears.
5 s later, the current storage interval configuration will appear
in the display. This can be changed using the mode key.
If "off" is displayed, the internal data storage is switched off.
Measurement values are stored every 1.0 seconds.
Other storage intervals: 2s, 10s, 1 min, 10 min
If "trig" appears, new measurement values will only be stored
if the current value differs from the last stored value by at
least 2 digits (e.g.: 2.3 ... 2.5). This reduces the data volume
and optimally utilizes the storage unit.
5s
mode
5s
s
mode
mode

Operation
11
6.3 Choose unit
In order to configure the measurement unit, the device must be switched into configura-
tion mode. Hold down the mode key of the shut-down device until the "rAtE" display ap-
pears.
Condition: Measurement device is shut down!
Hold down the mode key of the shut-down device for ap-
proximately 5 seconds until the "rAtE" display appears.
Press the mode key repeatedly until the ‘’unit’’ display ap-
pears.
5 s later, the current measurement unit configuration will ap-
pear in the display:
Within 10 s, select "mbar," "Torr," or "hPa" using the mode
key.
5s
mode
mode
mode
5s
mbar
Torr
mode
mode

12
Operation
6.4 TPG 202 calibration
Atmosphere (CALH) The device is calibrated ex works. Use under other climate conditions, extreme temper-
ature fluctuations, weathering, or dirt may necessitate readjustment. Conduct zero-point
adjustment at the same ambient temperature at which the device is typically operated.
Also hold down the mode key of the shut-down device until the "rAtE" display appears.
If no keys are pressed adjustment is carried out in 5s.
High vacuum (CAL.L)
Press the mode key repeatedly until the ‘’CAL’’ display ap-
pears.
"CAL.H" will appear in the display in 5s.
Confirm the "CAL.H" display by pressing the mode key.
The actual atmosphere pressure is displayed.
Confirm with mode key the display "CAL.H".
Adjust the reference value with the mode key.
The display value changes by 1 digit (1 mbar) up or down.
"CALI" will appear in the display during the calibration proce-
dure (approx. 20s). No calibration is performed, if during cal-
ibration the error message "Err“ appears.
mode
mode
mode
mode
mbar
mode
mbar
20s
Adjustment on atmospheric pressure
The pressure measured with the unit must be above 800 hPa for adjusting. Otherwise
adjustment is denied and the error message “Err“ displayed.
Pay attention to the necessary pressure, when adjusting.
Adjustment on zero pressure
For adjustment on zero pressure the actual pressure inside the sensor has to be less
than 1 x 10-4 hPa. The pressure reading must be less than 4 x 10-2 hPa. Otherwise ad-
justment is denied and the error message “Err“ displayed.
Pay attention to the necessary pressure, when adjusting.
Condition: Measurement device is shut down!
Hold down the mode key of the shut-down device for ap-
proximately 5 seconds until the "rAtE" display appears.
Press the mode key repeatedly until the ‘’CAL’’ display ap-
pears.
5s
mode
mode
mode

Operation
13
6.5 PC mode
The TPG 202 can be connected to the PC via a USB port in order to transmit the mea-
surement data. The DokuStar software (accessory) supports recording current pressure
values (online measurement) as well as reading out the measurement value storage unit.
The measurement values are represented as a diagram and can be exported as a text
file for further analysis.
All the device parameters such as the storage interval, display unit, or the gas type cor-
rection factor can also be easily configured using the software.
The device will switch into PC mode and is ready for bidirectional data transmission.
Communication takes place in accordance with PV protocol (see p. 16, chap. 6.7).
"CAL.H" will appear in the display in 5s.
"CAL.L" will appear in the display in another 5s.
Apply the necessary pressure < 1·10-4 hPa.
Confirm the "CAL.L" display by pressing the mode key.
"CALI" will appear in the display during the calibration proce-
dure (approx. 20s).
If
„ur" appears during the calibration procedure, calibration
has been successful.
„Err" : error message. Calibration has not taken place.
5s
mode
20s
mbar
Torr
mbar
Torr
Create a cable connection using an open USB port on the
PC.
PC mode!
If the TPG 202 switches into PC mode, the current measurement value display as well
as any data logging that may be running will close.
After the USB cable is disconnected, the TPG 202 will switch into auto-off mode.
Starting data storage after disconnecting from the PC in accordance with (see p. 10,
chap. 6.2)

14
Operation
6.6 Configuring the data exchange
Communication is carried out via the USB interface using the Pfeiffer Vacuum protocol:
●9600 baud
●8 data bits
●1 stop bit
●no parity
Parameter overview
Parameters are displayed in square brackets as a three-digit number in bold font. The
designation may also be stated if necessary.
Example: [P:312] Software version
Applied data types
Reading the actual
pressure value
[P:740]
Pressure value as the value to be queried are transmitted by means of a string in the for-
mat "aaaabb", whereby "aaaa" is the mantissa and "bb" the exponent with offset 20 of
an exponential number. "aaaa" is therefore in the range "1000" (for 1.000) to "9999" (for
9.999). The individual characters of the string are the numbers "0" (ASCII 48) to "9"
(ASCII 57).
Example: "100023" represents 1.000 x 10+3 mbar, "750015" represents 7.500 x 10-5
mbar.
Writing the unit
[P:643] The unit for representing the pressure value in the display can be selected manually
using the mode key or via the interface. This does not impact the unit of the transmitted
pressure values: these are always given in hPa.
Reading error codes
[P:303] Parameter 303 transfers the actual error code of the unit. The following error codes can
occur:
# Name Data type Application
303 Current error code 4 - string Read-only
312 Software version 4 - string Read-only
349 Device name 4 - string Read-only
643 Physical unit 7 - u_short_int Readable, writable
740 Pressure value in [hPa] 10 - u_expo_new Readable
742 (Pirani) correction factor 2 - u_real Readable, writable
770 Data logging interval 1 - pos. integer number Readable, writable
771 Data logging record 11 - symbol chain Read-only
Data type Description Size l1 - l0 Example
0 - boolean_old Boolean value (false / true) 06 000000 / 111111
1 - u_integer Positive integer number 06 000000 to 999999
2 - u_real Positive fixed point number 06 001571 equal to 15.71
4 - string String 06 TC_400
6 - boolean_new Boolean value (false / true) 01 0 / 1
7 - u_short_int Positive integer number 03 000 to 999
10 - u_expo_new Positive exponential number 06 100023
11 - string String 16 BrezelBier&Wurst
Value
CPT 200 PPT 200 RPT 200 HPT 200 MPT 200
Meaning
000000 XXXXXNo error
Wrn001 XFilament 1 defectve in auto-mode
Err001 XXXXXDefective gauge
Err002 XXXXXDefective memory
Err003 XFilament 1 defective
Err004 XFilament 2 defective

Operation
15
Reading the compo-
nent names [P:349] Parameter 349 contains a token of the component name:
●TPG 202
Reading the software
version [P:312] The software version can be read from the connected device using parameter 312:
●Example: 010102
Reading/writing the
gas correction factor
[P:742]
The correction factor can be set to values in the range 0.2–8.0 :
●Example: 1,00 (written as 000100)
Read/write the stor-
age interval [P:770] The following storage intervals can be selected using parameter [P:770]:
●OFF, 1s, 2s, 10s, 60s, 600s, trig interval in [s]
Additionally, storage intervals ranging from 0 (off) to 9999 can be configured via the USB
port using the PV protocol.
Reading data from
memory [P:771] The stored values (max. of 2,000) can be read from the TPG 202 using parameter
[P:771]:
●Data format: 00mmmmeetttttttt
– mmmmee: Measurement value in data format u_expo_new, data = m.mmm x 10 ^
(ee - 20)
– tttttttt: Time of the logging in s since the beginning
– Logging not/no longer available: 9999999999999999
Caution: In order to increase the energy efficiency of the operating system, delayed re-
sponse times of up to 0.5 seconds are possible.
Err005 XBoth filaments defective
Value
CPT 200 PPT 200 RPT 200 HPT 200 MPT 200
Meaning

16
Maintenance
6.7 Pfeiffer Vacuum Protocol for "USB"
Telegram frame The telegram frame of the Pfeiffer Vacuum protocol contains only ASCII code characters
[32; 127], the exception being the end character of the message CR. Basically, a master
(e.g. a PC) sends a telegram, which is answered by a slave (e.g. electronic drive
unit or gauge).
Telegrams Data request ?
Control command !
Data response / control command understood 
Error message 
Telegram examples
Read actual pressure value (data query)
(Parameter [P:740], Slave device address: "001")
7 Maintenance
The unit requires no maintenance. A damp cloth can be used to wipe away any external
dirt.
a2 a1 a0 * 0 n2 n1 n0 l1 l0 dn ... d0 c2 c1 c0 CR
a2 - a0 Unit address for slave 
– Individual address of the unit ["001"]
*Action
n2 - n0 Pfeiffer Vacuum parameter numbers
l1 - l0 Data length dn ... d0
dn - d0 Data in data type concerned
c2 - c0 Checksum (sum of ASCII values of cells a2 to d0) modulo 256
CRCarriage return (ASCII 13)
a2 a1 a0 0 0 n2 n1 n0 0 2 = ? c2 c1 c0 CR
a2 a1 a0 1 0 n2 n1 n0 l1 l0 dn ... d0 c2 c1 c0 CR
a2 a1 a0 1 0 n2 n1 n0 l1 l0 dn ... d0 c2 c1 c0 CR
a2 a1 a0 1 0 n2 n1 n0 0 6 N O _ D E F c2 c1 c0 CR
_RANGE
_LOGI C
NO_DEF The parameter n2 - n0 does not exist
_RANGE Data dn - d0 are outside the permitted range
_LOGIC Logic access violation
?0010074002=?106CR
ASCII 48 48 49 48 48 55 52 48 48 50 61 63 49 48 54 13
 0011074006100023025CR
ASCII 48 48 49 49 48 55 52 48 48 54 49 48 48 48 50 51 48 50 53 13

Troubleshooting
17
8 Troubleshooting
Problem Possible cause Correction
Measurement value deviation too
high
Aging, contamination, extreme temperatures,
wrong adjustment
Readjustment
Display "or" Measurement range exceeded (Pressure > 1200 hPa)
Display "ur" Measurement range fallen below (Pressure < 5x10-4 hPa)
Error message "Err" Adjustment performed with wrong pressure Displayed pressure must be for atmospheric pres-
sure > 800 hPa, for zero compensation < 4x10-2 hPa
Measurement value deviation exceeds the ad-
justment range
Send in the device
Error message "Err1" Sensor defective Send in the device

18
Service
9 Service Do make use of the Pfeiffer Vacuum service facilities. In the event that repairs are nec-
essary a number of options are available to ensure any system down time is kept to min-
imum:
●Repair in the nearby Service center
●Send unit and have it replaced with a new unit
Sending of units (Service Request)
For a quick and smooth handling of the service process, Pfeiffer Vacuum recommends
the following steps:
Download the forms "Service Request" and "Declaration on Contamination".1)
Fill out the "Service Request" form and send it by fax or e-mail to your local Pfeiffer
Vacuum service contact.
Include the confirmation on the "Service Request" from Pfeiffer Vacuum with your
shipment.
Fill out the "Declaration of Contamination" and include it in the shipment. This docu-
ment is mandatory to protect our service engineers.
– Fill out and send one declaration for each device.
If possible, send unit in the original packaging.
In the absence or incompleteness of the "Declaration on Contamination" and/or the use
of unsuitable transport packaging, Pfeiffer Vacuum reserves the right to make a decon-
tamination and/or to send the product back at the shipper’s expense.
Service orders
All service orders are carried out exclusively according to our repair conditions for vacu-
um units and components. Detailed information, addresses and forms at:
http://www.pfeiffer-vacuum.com/service/repair-services/container.
10 Accessories
1) Forms under www.pfeiffer-vacuum.com
Designation TPG 202
Accessories kit with AC adapter, battery, USB cable, DokuStar software PT 350 102 -T

Technical data and dimensions
19
11 Technical data and dimensions
11.1 Technical data
11.2 Dimensions
Parameter TPG 202
Nominal diameter DN 16 ISO-KF
Protection category IP 40
Battery type 9 V AlMn E bloc, 6 LR6; 9 V Lithium E bloc
Seal Metal
Pressure max. 2000 hPa
Accuracy 1200 - 10 hPa: 0,3 % Full Scale; 10 - 2 · 10-3 hPa: 10 %; 2 · 10-
3hPa: < factor 2 of reading
Weight 0.230 (battery included) kg
Materials in contact with media Stainless steel, gold, nickel, tungsten, glass, FPM
Measurement range max. 1200 hPa
Measurement range min. 5 · 10-4 hPa
Method of measurement Piezo/Pirani
Temperature: Operating 5-50 °C
Temperature: Storage -20 - +60 °C
60
122
25
Ø30
60
62,0

20
Technical data and dimensions
11.3 Gas correction factor
Fig. 3: Dependent on gas type TPG 202 (Pirani)
1E-3
1E-2
1E-1
1E0
1E1
1E2
1E3
1E-3 1E-2 1E-1 1E0 1E1 1E2 1E3
H2
N2
Ar
displayed pressure (hPa)
real pressure (hPa)
Pirani correction factor ( for pressures <1 · 10-1 hPa)
N2
Air
H2
He
Ar
CO2
1.00
1.00
0.58
1.02
1.59
0.89