Edwards PGC201 User manual

edwardsvacuum.com
PGC201 PASSIVE GAUGE CONTROLLER
INSTRUCTION MANUAL
Publication number: D0300040001EN
Issue: A
Original Instructions

This product has been manufactured under a quality management system certified to ISO 9001:2008
07.06.2017, Eastbourne
Declaration of Conformity
We, Edwards,
Innovation Drive,
Burgess Hill,
West Sussex,
RH15 9TW, UK
declare under our sole responsibility, as manufacturer and person within the EU authorised
to assemble the technical file, that the product(s)
•Passive Penning (CPG), Pirani (PRG) gauges connected to controllers (PGC).
D03000100
CPG35K – NW40
D03000200
PRG20K – NW16 AI
D03000110
CPG35K – DN40CF
D03000210
PRG20K – DN16CF SS
D03000130
CPG35K – NW25
D03000220
PRG20KCR – NW16 SS
D03000140
CPG35KB – DN40CF
D03000400
PGC201 Pirani/Penning Contr +*
D03000201
PRG cable 5 m
D03000101
CPG cable 5 m
D03000202
PRG cable 10 m
D03000102
CPG cable 10 m
D03000203
PRG cable 20 m
D03000103
CPG cable 20 m
D03000204
PRG cable 30 m
D03000104
CPG cable 30 m
D03000205
PRG cable 50 m
D03000105
CPG cable 50 m
to which this declaration relates is in conformity with the following standard(s) or other
normative document(s)
EN61010-1:2010 Safety Requirements for Electrical Equipment for Measurement,
Control and Laboratory Use. General Requirements
EN61326-1:2013 Class B,
Industrial Electrical equipment for measurement, control and laboratory
Use. EMC requirements. General requirements
and fulfils all the relevant provisions of
(+) 2014/35/EU Low Voltage Directive
(*) 2014/30/EU Electromagnetic Compatibility (EMC) Directive
2011/65/EU Restriction of Certain Hazardous Substances (RoHS) Directive
2012/19/EU Waste from Electrical and Electronic Equipment (WEEE) Directive
Note: This declaration covers all product serial numbers from the date this Declaration was
signed onwards.
Larry Marini, Senior Technical
Date and Place
P200-10-164 Issue A

P200-10-171
Issue A
Material Declaration
In accordance with the requirements of the Chinese regulatory requirement on the Management Methods for the
Restriction of the Use of Hazardous Substances in Electrical and Electronic Products Order No. 32 (also known as
‘China RoHS2’) and SJ/T 11364 Marking for the Restricted Use of Hazardous Substances in Electronic and Electrical
Products:
Product Product Label Meaning
PGC201 vacuum
gauge controller
This product contains hazardous substances in at least one of the
homogeneous materials used which are above the limit
requirement in GB/T 26572 as detailed in the declaration table
below.
These parts can safely be used for the environmental protection
use period as indicated.
Materials Content Declaration
Part name
Hazardous Substances
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Hexavalent
Chromium
(Cr VI)
Polybrominated
biphenyls (PBB)
Polybrominated
diphenyl ethers
(PBDE)
(PCA) Printed
Circuit Assembly
(PCA)
X O X O O O
Cable/Wire/
Connector
X O O O O O
Mechanical
Components
X O O O O O
O: 表示该有害物质在该部件的所有均质材料中的含量低于 GB/T 26572 标准规定的限量要求
O: Indicates that the hazardous substance contained in all of the homogeneous materials for this part is
below the limit requirement in GB/T 26572.
X: 表示该有害物质在该部件的至少一种均质材料中的含量超出 GB/T26572 标准规定的限量要求
X: Indicates that the hazardous substance contained in at least one of the homogeneous materials used for
this part is above the limit requirement of GB/T26572.
These products are EU RoHS complaint, the following Exemptions apply:
6(b) Lead as an alloying element in aluminium containing up to 0.4% by weight
6(c) Copper alloy containing up to 4% lead by weight
7(a) Lead in in high melting temperature type solder (i.e lead based alloys containing 85% by weight or more lead)
(c) I Electrical and electronic components containing lead in a glass or ceramic other than dielectric ceramic in
capacitors, e.g. piezoelectronic devices, or in a glass or ceramic matrix compound
7(c) II Lead in dielectric ceramic in capacitors for a rated voltage of 125 V AC or 250 V DC or higher
8(b) Cadmium and its compounds in electrical contacts
15 Lead in solders to complete a viable electrical connection between semiconductor die and carrier within
integrated circuit flip chip packages
34 Lead in cermet-based trimmer potentiometer elements

Copyright notice
© Edwards Limited 2017. All rights reserved.
Trademark credits
Edwards and the Edwards logo are trademarks of Edwards Limited.
D0300040001EN - Copyright notice

D0300040001EN - Contents
Page i
Contents
Description 1
Validity .............................................................................................................................. 1
Part number ................................................................................................................. 1
Nameplate ................................................................................................................... 1
Intended use ..................................................................................................................... 1
Responsibility and warranty ............................................................................................. 1
Shipping damage .............................................................................................................. 2
Safety 3
General information ......................................................................................................... 3
Key to the symbols ............................................................................................................ 3
Basic safety information ................................................................................................... 3
General equipment description 5
PGC201 ............................................................................................................................. 5
PRG (Pirani) method of measurement ............................................................................. 5
CPG (cold cathode) method of measurement .................................................................. 5
Connectable gauge heads ................................................................................................. 5
Technical data 7
General data ..................................................................................................................... 7
Mechanical data .......................................................................................................... 7
Standard parameters (factory defaults) ...................................................................... 8
Sensor-dependent parameters .............................................................................. 8
General parameters ................................................................................................ 8
Environment ................................................................................................................ 8
Standards ..................................................................................................................... 9
Mains connection ............................................................................................................. 9
Measurement channels .................................................................................................... 9
PRG measurement channels ........................................................................................ 9
CPG measurement channel ....................................................................................... 10
Measurement ............................................................................................................ 10
Switching functions / relay outputs ................................................................................ 10
Switching function relay ............................................................................................ 10
Ready signal relay ...................................................................................................... 10
Outputs and inputs ......................................................................................................... 11
Analog output ............................................................................................................ 11
External control ......................................................................................................... 11
Serial interfaces ......................................................................................................... 11
RS232 .................................................................................................................... 11
RS485 .................................................................................................................... 12
Installation 13
Supplied equipment ....................................................................................................... 13
Mechanical installation ................................................................................................... 13
cg/02/17

D0300040001EN - Contents
Page ii
Rack installation ......................................................................................................... 13
Front panel installation .............................................................................................. 14
Benchtop instrument ................................................................................................. 15
Connections .................................................................................................................... 15
Rear side of the instrument ....................................................................................... 15
Mains connection ...................................................................................................... 16
Earthing ..................................................................................................................... 17
PRG measurement channels (PRG 1 and PRG 2) ....................................................... 17
CPG measurement channel (CPG) ............................................................................. 17
Analog output and external control (analog output / extern control) ...................... 18
RS232 / RS485 Interface (Interface RS232 / RS485) .................................................. 19
Relay output (relay output) ....................................................................................... 19
Operation 21
Front panel ..................................................................................................................... 21
Display ....................................................................................................................... 21
Control pushbuttons .................................................................................................. 22
(CH) ....................................................................................................................... 22
(PARA) ................................................................................................................... 22
Arrow pushbuttons ('DOWN' / 'UP') ............................................................ 22
Switching on and off ....................................................................................................... 22
Switching on .............................................................................................................. 22
Switching off .............................................................................................................. 22
Operating modes ............................................................................................................ 22
Measurement mode .................................................................................................. 23
Parameter mode ........................................................................................................ 23
Measurement mode ....................................................................................................... 23
Selection .................................................................................................................... 23
Description ................................................................................................................ 23
Pushbutton functions ................................................................................................ 23
Measurement channel selection .......................................................................... 23
Parameter mode selection ................................................................................... 24
Switching the CPG on ........................................................................................... 24
Switching the CPG off ........................................................................................... 24
PRG adjustment ......................................................................................................... 24
Parameter mode ............................................................................................................. 25
Selection .................................................................................................................... 25
Parameter groups ...................................................................................................... 25
Switching function parameters (PArA SP) ............................................................ 26
Sensor parameters (PArA SEn) ............................................................................. 26
General parameters (PArA GEn) ........................................................................... 26
Operating concept ..................................................................................................... 26
Parameters 29
Switching function parameters (PArA SP) ...................................................................... 29
Basic terms ................................................................................................................ 29
Switching functions .............................................................................................. 29
Threshold values ................................................................................................... 29
Lower threshold value (SP1 Lo, SP2 Lo) ............................................................... 29
Upper threshold value (SP1 Hi, SP2 Hi) ................................................................ 29

D0300040001EN - Contents
Page iii
Hysteresis ............................................................................................................ 29
Configuring the switching functions .......................................................................... 30
Adjustment range ...................................................................................................... 30
Sensor parameters (PArA SEn) ....................................................................................... 31
Filament material PRG (FIL) ....................................................................................... 31
Type of gas correction PRG (GASTM) ........................................................................ 31
Type of gas correction CPG (GASPM) ........................................................................ 32
Sensor switch-on type (S-on) ..................................................................................... 32
Sensor switch-on value (t-on) .................................................................................... 32
Sensor switch-off type (S-off) .................................................................................... 32
Sensor switch-off value (t-off) ................................................................................... 33
General parameters (PArA GEn) ..................................................................................... 33
Unit of measurement (unit) ....................................................................................... 33
Analog output (AnALoG) ............................................................................................ 34
Display format (diGit) ................................................................................................ 34
Display brightness (bri) .............................................................................................. 34
Baud rate (bAud) ...................................................................................................... 34
Interface (rS) .............................................................................................................. 35
Computer interface 37
Basics .............................................................................................................................. 37
Connection ................................................................................................................ 37
Nomenclature ............................................................................................................ 37
Communication .............................................................................................................. 38
Protocol ..................................................................................................................... 38
General string structure ............................................................................................ 38
Command set (mnemonics) ............................................................................................ 39
Command overview ................................................................................................... 39
RPV (read pressure value) ......................................................................................... 40
RVN (read version number) ....................................................................................... 41
RSS (read set point status) ......................................................................................... 41
SHV (set HV on/off) ................................................................................................... 41
SKL (set key lock on/off) ............................................................................................ 42
SAC (save actual configuration) ................................................................................. 42
RSA (read serial address) ........................................................................................... 42
SSA (set serial address) .............................................................................................. 42
RGP (read general parameter) ................................................................................... 43
SGP (set general parameter) ..................................................................................... 44
RGC (read gas correction) .......................................................................................... 45
SGC (set gas correction) ............................................................................................. 45
RSC (read sensor control) .......................................................................................... 45
SSC (set sensor control) ............................................................................................. 46
RSP (read set point) ................................................................................................... 47
SSP (set set point) ...................................................................................................... 47
Maintenance and service 49
Maintenance ................................................................................................................... 49
General maintenance information ............................................................................ 49
Troubleshooting .............................................................................................................. 49
Fault finding ............................................................................................................... 49

D0300040001EN - Contents
Page iv
Error messages .......................................................................................................... 49
Help the case of faults ............................................................................................... 49
Fuse replacement ...................................................................................................... 50
Repair ......................................................................................................................... 50
Storing and waste disposal 51
Storing ............................................................................................................................. 51
Waste disposal ................................................................................................................ 51
List of Figures
Dimensions (mm) ...................................................................................................... 7
Rack installation ...................................................................................................... 14
Front panel cut-out dimensions (mm) ..................................................................... 14
Preparing the instrument for utilisation as a benchtop unit ................................... 15
Rear panel of the instrument .................................................................................. 16
Connection plug for analog output and external control (SUB-D, 15-way) ............. 18
Interface connection socket (SUB-D, 9-way) ........................................................... 19
Connection plug for relay output (SUB-D, 25-way) ................................................. 19
Front panel .............................................................................................................. 21
Operating the pushbuttons ..................................................................................... 23
Full-scale adjustment for the PRG gauge head ....................................................... 24
Zero adjustment for the PRG gauge head ............................................................... 25
Behaviour of a switching function in response to pressure changes ...................... 30
List of Tables
Part numbers ............................................................................................................. 1
Connectable gauge heads ......................................................................................... 5
Gauge head cables .................................................................................................... 6
Accessories ................................................................................................................ 6
Switching parameters, factory defaults .................................................................... 8
Sensor parameters, factory defaults ......................................................................... 8
General parameters, factory defaults ....................................................................... 8
Supplied equipment ................................................................................................ 13
Display components ................................................................................................ 21
Display in the measurement mode ......................................................................... 23
Parameter groups and corresponding parameters ................................................. 26
Available sensor parameters ................................................................................... 31
Values for the parameter FIL ................................................................................... 31
Values for the parameter unit ................................................................................. 34
Values for the parameter AnALoG .......................................................................... 34
Values for the parameter diGit ................................................................................ 34
Values for the parameter bri ................................................................................... 34
Values for the parameter bAud ............................................................................... 34
Values for the parameter rS .................................................................................... 35

D0300040001EN - Contents
Page v
Terms computer interface ....................................................................................... 37
Control characters computer interface ................................................................... 37
Mnemonics for read commands ............................................................................. 39
Mnemonics for write commands ............................................................................ 39
Mnemonics for read and write commands ............................................................. 39
Error messages ........................................................................................................ 49

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D0300040001EN - Contents
Page vi

D0300040001EN - Description
Page 1
Description
Validity
Part number
This document applies to the following products:
Nameplate
A nameplate is located on the side of the instrument. When communicating with Edwards,
stating the information on the nameplate is necessary.
Intended use
The PGC201 is a universal vacuum gauge controller instrument which, by combining two
principles of measurement, Pirani (PRG) and Penning (CPG), provides full coverage and
control over vacuum pressures ranging between 1 x 10-9 mbar and atmospheric pressure.
One CPG sensor and a maximum of two PRG sensors can be connected.
The built-in RS232/RS485 interface permits computer-controlled operation as well as the
exchange of the measurement data between the PGC201 and a computer.
Operate all connected sensors in agreement with the information given in the corresponding
Operating Instructions.
Responsibility and warranty
Edwards will not assume any responsibility or warranty in cases where the operator or third
persons:
 Do not observe the information given in this document.
 Do not use the product as intended.
 Modify the product in any way (conversions, repair work, and so forth).
 Operate the product with accessories not listed in the corresponding product
documentation.
Subject to technical alterations without prior notice. The figures are not binding.
Table 1 Part numbers
Item number Product description
D03000400 PGC201 Three-channel measuring instrument for
passive vacuum sensors
Note:
Based on the technical data please check first whether your measuring instrument is suited to
your kind of application.

D0300040001EN - Description
Page 2
Shipping damage
 Examine the shipping package for any external damage.
 Remove all of the packaging material and check the instrument. If the instrument is
damaged, follow the Edwards return of equipment procedures that are laid out in the
back of this manual. Do not use the instrument if it is damaged.

D0300040001EN - Safety
Page 3
Safety
General information
The Edwards PGC201 controller is delivered ready for operation. This manual provides
installation, operation and maintenance instructions for the PGC201. The instrument must be
used as specified in this manual.
Key to the symbols
Important instructions relating to technical safety and safe operation are emphasised by
symbols.
Basic safety information
During all installation, maintenance and repair activities, comply with the pertinent safety
regulations.
WARNING:
Warnings are given where failure to observe the instruction could result in injury or death
to people.
CAUTION:
Cautions are given where failure to observe the instruction could result in damage to the
equipment, associated equipment and process.
WARNING:
Risk of electric shock.
Note:
General information pointing to further information, respectively reference sections.
WARNING:
Do not allow objects or liquids to enter the instrument. Coming into contact with
components at mains voltage level can be dangerous to life.
CAUTION:
Improper usage can damage the instrument. Use the instrument only in agreement with
the specifications issued by the manufacturer.
CAUTION:
Wrong connection and operating data can damage the instrument. Comply with all
specified connection and operating data.

D0300040001EN - Safety
Page 4
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D0300040001EN - General equipment description
Page 5
General equipment description
PGC201
This combination instrument offers three measurement channels, two PRG and one CPG.
Thus measurement of vacuum pressures over 12 full decades from 1 x 10-9 mbar to
atmospheric pressure is possible. Six switching thresholds permit the integration of the
PGC201 within complex vacuum control facilities. The two PRG channels are immediately
active upon powering up. The CPG channel may be switched on and off by one of the two PRG
channels or externally or manually. The operating status of the switching thresholds and the
measurement systems is displayed and signalled correspondingly through the outputs.
PRG (Pirani) method of measurement
This method of measurement covering the range of 5 x 10-4 to 1 x 103mbar utilises the heat
conductance of the gas for the purpose of measuring pressure. In order to attain a response
time which is as short as possible, all PRG instruments rely exclusively on the principle of the
controlled Pirani where the measurement filament is part of a Wheatstone Bridge. When the
temperature of the filament changes due to pressure changes, the bridge becomes
unbalanced. The quickly responding control circuitry adapts the heating power for the
filament so that the filament temperature reaches its nominal level thereby balancing the
measurement bridge again. The displayed pressure is dependent on the type of gas. By
default the display of the instrument has been calibrated for nitrogen or dry air.
CPG (cold cathode) method of measurement
This principle of measurement relies on the ion current produced when a gas discharge is
generated within the sensor. The resultant ion current from the discharge is proportional to
the pressure. This sensor arrangement allows reliable measurement in the range from
1 x 10-9 to 1 x 10-2 mbar. Two versions with either a NW or CF flange are available.
Connectable gauge heads
The following gauge heads can be operated by the PGC201:
Table 2 Connectable gauge heads
Gauge head Product description Item number
CPG
CPG35K - NW40 D03000100
CPG35K - DN40CF D03000110
CPG35K - NW25 D03000130
CPG35KB - DN40CF D03000140
PRG
PRG20K - NW16 Al D03000200
PRG20K - DN16CF SS D03000210
PRG20KCR - NW16 SS D03000220

D0300040001EN - General equipment description
Page 6
Table 3 Gauge head cables
Gauge head type Product description Item number
PRG cables
PRG Cable 5 m D03000201
PRG Cable 10 m D03000202
PRG Cable 20 m D03000203
PRG Cable 30 m D03000204
PRG Cable 50 m D03000205
CPG cables
CPG Cable 5 m D03000101
CPG Cable 10 m D03000102
CPG Cable 20 m D03000103
CPG Cable 30 m D03000104
CPG Cable 50 m D03000105
Table 4 Accessories
Gauge head type Product description Item number
PRG spares Replacement sensing cell K D03000209
Replacement sensing cell KCR D03000229
CPG spares Spare cathode plates and discs D03000109
Spare anode ring D03000119

D0300040001EN - Technical data
Page 7
Technical data
General data
Mechanical data
Figure 1 Dimensions (mm)
Dimensions: Width: 106.4 mm
Height: 128.4 mm
Depth: 174.5 mm
Weight: 1.4 kg
Installation depth: 230 mm approximately (including connected plugs)
Usage: Rack installation
Front panel installation
Benchtop instrument

D0300040001EN - Technical data
Page 8
Standard parameters (factory defaults)
Sensor-dependent parameters
General parameters
Environment
Table 5 Switching parameters, factory defaults
Parameter Parameter description PRG setting
(mbar)
CPG setting
(mbar)
 Switching thresold 1 - lower threshold . .
 Switching thresold 1 - upper threshold . .
 Switching thresold 2 - lower threshold . .
 Switching thresold 2 - upper threshold . .
Table 6 Sensor parameters, factory defaults
Parameter Parameter description PRG setting CPG setting
 PRG filament material (tungsten) 
 PRG gas type correction characteristic (nitrogen) 
 CPG gas type correction factor .
 Switch-on type for sensor  
 Switch-off type for sensor  
Table 7 General parameters, factory defaults
Parameter Parameter description Setting
 Displayed unit of measurement 
 Analog output 
 Number of displayed digits 
 Display brightness 
 Baud rate .
 Serial interface 
Temperature: Storage: -20 to +60 °C
Operating: +5 to +50 °C (sea level)
+5 to +30 °C (2000 metres above sea level)
Relative atmospheric humidity: 80% maximum (up to 30 °C)
decreasing to 50% maximum (from 40 °C)
Use: Indoors (altitude 2000 m maximum above sea level)
Ingress protection type: IP40

D0300040001EN - Technical data
Page 9
Standards
 Conformity with respect to Low Voltage Directive 2014/35/EU
 Conformity with respect to EMC Directive 2014/30/EU
 Conformity with respect to RoHS Directive 2011/65/EU
International/national standards as well as specifications:
 DIN EN 61010-1 (2011) (Safety requirements for electrical equipment for
measurement, control and laboratory use).
 DIN EN 61326-1 (2013) (Electrical equipment for measurement, control and laboratory
use - EMC requirements. Industrial immunity; domestic emissions, Class B.
Mains connection
Measurement channels
PRG measurement channels
Voltage: 100 to 240 V a.c.
Frequency: 50/60 Hz
Fuses: 2 x T1.6 A H
Power consumption: < 10 W
Current consumption: 0.2 to 0.1 Amp approximately
Over-voltage category: II
Protection category: 1
Connection: Cold-device plug IEC 60320 C14
Number: 2 PRG measurement channels
1 CPG measurement channels
Connection: 6-way DIN socket for PRG
1-way HV socket (shielded) for CPG
Measurement range: 5 x 10-4 to 1000 mbar
Measurement accuracy: ± 20% of measured value (10-3 to 10-2 mbar)
± 15% of measured value (10-2 to 102mbar)
Cable length: Up to 100 m
Cable length compensation: Automatic

D0300040001EN - Technical data
Page 10
CPG measurement channel
Measurement
Switching functions / relay outputs
Switching function relay
Ready signal relay
Measurement range: 1 x 10-9 to 1 x 10-2 mbar
Measurement accuracy: ± 30% of measured value (10-8 to 10-4 mbar)
Cable length: Up to 100 m for the pressure range
1 x 10-8 to 1 x 10-2 mbar
Display rate: 4 s-1
Unit of measurement: mbar, Pa, Torr
Number: 6
Assignment: 2 per channel
Response time: < 50 ms
Adjustment range: CPG 1 x 10-8 to 1 x 10-2 mbar
PRG 5 x 10-3 to 5 x 102mbar
Hysteresis: Adjustable > 10% of measured value
Contact type: Changeover contact, floating
Load (resistive): Switched current: 1 Amp maximum
Switched voltage: maximum 30 V a.c./30 V d.c.
Service life: Mechanical: 5 x 106switching cycles
Electrical: 105switching cycles at maximum load
Connection: SUB-D, 25-way, plug
Number: 3
Assignment: 1 per channel
Response time: < 50 ms
Contact type: Normally open contact, floating
Load (resistive): Switched current: 1 Amp maximum
switched voltage: Maximum 30 V a.c./30 V d.c.
Service life: Mechanical: 5 x 106switching cycles
Electrical: 105switching cycles at maximum load
Connection: SUB-D, 25-way, plug