Pfeiffer Vacuum TPG 256 A User manual

Operating manual
BG 805 186 BE / B (2005-07) 1
TPG 256 A
Vacuum measurement and control unit
for Compact Gauges
MaxiGauge™

2BG 805 186 BE / B (2005-07) MaxiGauge.om
This manual applies to products with part number:
• PT G28 760 with serial interfaces RS232C and
RS422
• PT G28 761 with serial interfaces RS232C and
RS422 and RS485 (addressable,
isolated) and RS422 (isolated)
The part number can be taken from the nameplate on
the rear panel, where the interfaces can be connected
as well (→12).
This manual is based on firmware version:
• BG 509 730 -I
If your unit does not behave as described in this docu-
ment, please check whether it is equipped with this firm-
ware version (→109).
Enter the firmware version number of your unit in the
space provided below:
• BG ..................... ..................... -.......
MaxiGauge™ INFICON GmbH
FullRange™ INFICON GmbH
We reserve the right to make engineering changes with-
out notice.
Validity
Firmware Version
Trademarks

BG 805 186 BE / B (2005-07) MaxiGauge.om Contents 3
Contents
Validity 2
Firmware Version 2
Trademarks 2
1 Intended Use 6
2 Technical Data 8
3 Safety 15
4 Commissioning 17
4.1 Personnel 17
4.2 Set-Up, Assembly 17
4.3 Power Connection 18
4.4 Connecting the Gauges to sensor 21
4.5 control Control Connector 21
4.6 RS 232/422 Pinout Connector for
Serial Interfaces 23
4.7 RS 485/422 isol. Interface Port 23
4.8 relay Connector for Switch Contacts 23
5 Operating Elements and Modes 24
5.1 Operating Elements 24
5.2 Operating Modes (Overview) 27
5.2.1 «Measurement» Mode 28
5.2.2 «Setpoint» Mode 30
5.2.3 «General Parameter» Mode 31
5.2.4 «Sensor Parameter» Mode 32
5.2.5 «Sensor Control» Mode 33
5.2.6 «Test» Mode 34
6 Display Formats and Pressure Units 35
6.1 Display Formats 35
6.2 Pressure Units 36
6.3 Cursor 36
7 Operation 37
7.1 Personnel 37
7.2 Switching the Unit On and Off 37
7.3 Selecting the Operating Mode 39
7.4 «Measurement» Mode 40
7.4.1 Selecting the Measurement Point (Sensor) 40
7.4.2 Switching the Gauge On/Off (Sen-on/off) 41
7.4.3 Display of a Single Gauge / All Gauges
(Single/All) 41
7.5 «Setpoint» Mode 42
7.5.1 Selecting the Switching Function (Relay) 42
7.5.2 Assigning Measurement Points
(Control Sensor) 43
7.5.3 Defining the Threshold Values (Setpoint) 44
7.5.4 Underrange Control (UR-Control) 46

4Contents BG 805 186 BE / B (2005-07) MaxiGauge.om
7.6 «General Parameter» Mode 48
7.6.1 Parameter Input Lock (Key-lock) 48
7.6.2 Selecting the Pressure Unit (Unit) 49
7.6.3 Display Resolution (Digits) 50
7.6.4 Bargraph (Bargraph) 51
7.6.5 Restoring Default Values (Default) 52
7.6.6 Defining an Interface (Interface) 53
7.6.7 Defining the Baud Rate (Baudrate) 54
7.6.8 Defining the Node Address (Address) 55
7.6.9 Screensave (Screensave) 56
7.6.10 Display Contrast (Contrast) 57
7.7 «Sensor Parameter» Mode 58
7.7.1 Selecting a Measurement Point (Sensor) 58
7.7.2 Gauge Identification (Type) 59
7.7.3 Offset Function (Offset) (zeroing) 60
7.7.4 Activating the Degas Routine (Degas) 63
7.7.5 Setting the Calibration Factor (Cal-Factor) 64
7.7.6 Setting the Measurement Value Filter (Filter) 65
7.7.7 Defining the Measurement Point Name
(Name) 67
7.8 «Sensor Control» Mode 68
7.8.1 Selecting the Controlled Gauge (Sensor) 70
7.8.2 Selecting the Controlling Source (Control) 70
7.8.3 Setting the «Sensor 1 ... 6» Control 71
7.8.4 Setting the «Extern» Control 71
7.8.5 Setting the «Manual» Control 72
7.8.6 Setting the «Hotstart» Control 73
7.9 Status Messages 74
7.10 Error Messages 76
8 Communication 79
8.1 Serial Interfaces 79
8.1.1 Connection Diagrams 79
8.1.2 Connection Cable 80
8.1.3 Data Transmission 81
8.2 Mnemonics 85
8.2.1 Measurement Values 86
8.2.2 Display 89
8.2.3 Switching Functions 90
8.2.4 Parameters 91
8.2.5 Interfaces 94
8.2.6 Error Messages 97
8.2.7 Test Programs for Pfeiffer Vacuum
Service Specialists 98

BG 805 186 BE / B (2005-07) MaxiGauge.om Contents 5
9 Maintenance and Care 102
9.1 Personnel 102
9.2 Cleaning 102
9.3 Maintenance 103
10 Accessories and Spare Parts 104
11 Decommissioning 106
Appendix 107
A: Validity Table 107
B: Conversion of Pressure Units 108
C: Equipment Test 108
D: Literature 112
Declaration of Conformity 115
For cross references to pages within this manual, the
symbol (→XY) is used, for references to other docu-
ments, the symbol (→[Z]).

6BG 805 186 BE / B (2005-07) MaxiGauge™
1 Intended Use
The MaxiGauge™ TPG 256 A is a 6-port total pressure
measurement and control unit for Pfeiffer Vacuum Com-
pact Gauges.
The unit has been engineered for use with the following
gauge families *):
• TPR Pirani gauge
• PCR Combined Pirani/Capacitance gauge
• IKR Cold cathode gauge
• PKR Combined Pirani/cold cathode gauge
• IMR Hot ionization gauge High Pressure
(HP)
• PBR Combined Pirani/Bayard-Alpert hot
cathode ionization gauge (BA)
• CMR/ACR Capacitive gauge
• APR Piezoresistive gauge
The unit is suited for total pressure measurement in the
range of 10-11 mbar to 50 bar (5×104mbar). Through its
pressure dependent switching functions and the user-
programmable sensor control it can also perform a num-
ber of functions for controlling and monitoring vacuum
equipment and processes.
DANGER
Although this unit conforms to high quality and safety
standards and has been built and tested in accordance
with current technology, bodily injury and property
damage cannot be precluded if it is used in non-con-
forming applications (for purposes other than intended)
or if it is not used with diligence.
Therefore, it is essential that you carefully study this
operating manual, especially the chapter "Safety".
Keep this operating manual in a convenient location
near your equipment.
HINWEIS
*)Comprehensive list of gauge types →10.

BG 805 186 BE / B (2005-07) MaxiGauge.om Technical data 7
A Width of front panel 241 mm (½ 19" rack width)
B Mounting horizontal 224 mm
C Mounting vertical 76.2 mm
D Height of front panel 88 mm (2 height units)
E Installed depth 228.5 mm
F Installed width 207 mm
G Installed height 88 mm (2 height units)
Typ:
No:
F-No:
VHzVA
Pfeiffer Vacuum, D-35614 Asslar
The nameplate is located on the rear panel.
Make sure that the voltage and frequency ratings con-
form with the local power supply system. The remaining
information is important for communication with the
Pfeiffer Vacuum customer service.
Figure 1:
Dimensions
Figure 2:
Nameplate

8Technical data BG 805 186 BE / B (2005-07) MaxiGauge.om
2 Technical Data
Dimensions →Figure 1
Weight 2.1 kg
19" rack installation →Accessories, 104
Voltage 90 ... 250 VAC / 50 ... 60 Hz
Power consumption 60 VA
Overvoltage category II
Protection class 1
Unit connector IEC 320 C14
Power switch Rear panel
Temperatures
Storage
Operation -20 ... +60 °C + 5 ... +40 °C
Relative humidity Max. 80 % up to +31°C,
decreasing to 50 % at +40 °C
Use Indoors only
maximum height 2000 m
Contamination severity II
Protection class IP 30
Safety
→115
EMC
Mechanical data
Power connection
Environment, standards

BG 805 186 BE / B (2005-07) MaxiGauge.om Technical data 9
Logarithmic gauges
TPR
Compact Pirani Gauge
(Pirani gauge)
PCR
Compact Pirani Capacitance
Gauge
(Pirani/Capacitance gauge)
IKR
Compact Cold Cathode Gauge
(Cold cathode gauge)
PKR
Compact FullRange™ CC Gauge
(Pirani/Cold cathode gauge)
IMR
Compact Process Ion Gauge
(Pirani/High pressure gauge)
PBR
Compact FullRange™ BA Gauge
(Pirani/Bayard-Alpert gauge)
Figure 3:
Gauges

10 Technical data BG 805 186 BE / B (2005-07) MaxiGauge.om
Linear gauges
CMR/ACR
Compact Capacitance Gauge
(Capacitive gauge)
APR
Compact Piezo Gauge
(Piezoresistive gauge)
Number 6
Compatible gauges
(→[1] ... [15])
Compact Pirani Gauges
Compact Pirani Capacitance
Gauge
Compact Cold Cathode Gauges
Compact FullRange™ CC Gau-
ges
Compact Process Ion Gauges
Compact FullRange™ BA Gau-
ges
Compact Capacitance Gauges
Compact Piezo Gauges
Pfeiffer Vacuum Compact
Gauges
TPR 250, TPR 260, TPR 261,
TPR 265, TPR 280, TPR 281
PCR 260
IKR 250, IKR 251, IKR 260,
IKR 261, IKR 270
PKR 250, PKR 251, PKR 260,
PKR 261
IMR 260, IMR 265
PBR 260
CMR 261, CMR 262, CMR 263,
CMR 264, CMR 271, CMR 272,
CMR 273, CMR 274, CMR 275;
ACR 261, ACR 262, ACR 263,
ACR 274
APR 250, APR 260, APR 262,
APR 265, APR 266, APR 267
Connector type, pin assignments →20
NOTE
With the exception of the IMR 265, PBR 260 and CMR 27X, which
can only be connected to ports 4 to 6, any compatible gauge type
can be connected to any analog output.
Gauge connections