GPCA General Purpose Pressure Controllers

The GPCA is a metal-sealed pressure controller well suited for a wide variety of applications requiring pressure control capability from 500 Torr to 100 psi Full Scale. It incorporates the latest in digital flow control electronics along with a well proven, thermally stable pressure sensor and mechanical design.

Percent of set point accuracy enables precise process control
Temperature compensated pressure sensor maintains tight accuracy
DeviceNet™, EtherCAT®, or RS485 communications
Embedded user interface
10µ inch electropolished 316L surface finish and metal seals for high purity applications

See All Features

Configuration Options

The following options are available for GPCA General Purpose Pressure Controllers
Ordering Code Example: GPCAA13TR62UT10

Configuration Option	Option Code
GPCA Integrated Upstream Pressure Controller	GPCA
Sensor Type
Absolute	A
Pressure Range Full Scale
500 Torr	52T
1000 Torr	13T
2000 Torr	23T
60 psia	61P
100 psia	12P
1000 mBar	13M
2000 mBar	23M
5000 mBar	53M
100 kPa	12K
200 kPa	22K
600 kPa	62K
Fittings
Swagelok 4 VCR	R
¼ in. Swagelok	S
C-Seal	C
W-Seal (1.125 in.)	H
Communications
DeviceNet	6
EtherCAT	8
RS485 (ASCII)	5
Orifice Size
A (50 sccm)	A
#1 (200 sccm)	1
#2 (1000 sccm)	2
#3 (5000 sccm)	3
#4 (10000 sccm)	4
#5 (20000 sccm)	5
#6 (30000 sccm)	6
#7 (50000 sccm)	7
Pressure Control
Upstream (inlet)	U
Downstream (outlet)	D
Valve Seal Material
Teflon	T1
Reserved
Standard	0
Firmware
Customer must specify firmware version at time of order	10

	Description
	GPCA Absolute Pressure Controller, General Purpose, Metal-sealed

Specifications

Type
GPCA Absolute Pressure Controller
Pressure Range
500 Torr, 1000 Torr, 2000 Torr, 100 psia Full Scale
Fitting Type
Swagelok® 4 VCR Male
1-1/8 inch surface mount (C-seal, W-seal)
1/4 inch Swagelok compression seal
Valve Position
Normally Closed
Valve Seat
PTFE (Teflon®)
Flow Rate
50, 200, 1000, 5000, 10000, 20000, 30000, 50000 (sccm)
Pressure Readout Units
Torr, kPa, psi, mbar
Pressure Resolution
0.1 Torr
Pressure Control Accuracy
±1.0% of Reading (≥10% Full Scale)
±0.2% of Full Scale (<10% Full Scale)
Transducer Over Pressure Limit
2x Full Scale for all ranges
Maximum Differential Pressure
45 psid
Burst Pressure
1500 psig
Control Mode
Upstream or Downstream
Pressure Measurement Accuracy
±0.5% of Reading
Zero Temperature Coefficient
±0.02% of Full Scale/°C
Span Temperature Coefficient
±0.04% of Reading/°C
Control Range
>2 to 100% of Full Scale
Typical Response Time
<1.0 second

Operating Temperature
10-50°C (50-to 122°F)
Storage Temperature
-20-80°C (-4-176°F)
Storage Humidity
0 to 95% Relative Humidity, non-condensing
External Leak Integrity
<1 x 10-10 (scc/sec He)
Leak Integrity Through Closed Valve
<1.0% of orifice Full Scale (Nitrogen at 25 psig on inlet to atmosphere)
Wetted Materials
Standard: 316L S.S. VAR (equivalent to 316 S.S. SCQ for semiconductor quality), 316 S.S., Elgiloy®, KM-45
Optional: PTFE (Teflon) Valve Seat
Surface Finish
<10 µinches, average Ra electropolished
Power Required
DeviceNet™: +11 to +25 VDC per (<4 watts)
EtherCAT®: +24 VDC (<5 watts)
RS485: +15 to +24 VDC(<4 watts)
Connector-Interface
DeviceNet™: 5 pin micro connector (power and comm.)
EtherCAT®: 2 x RJ-45 (comm.) male, M8 male, 5 pin (power)
RS485: 9 pin Type D male (power and comm.)
Data Rate Switch
DeviceNet™: 4 positions: 125, 250, 500K (Default), (programmable over network)
EtherCAT®: No switch
RS485 No switch (set data rate via RS485)
EtherCAT Communication Rate
100 Mbps
DeviceNet Communication Rate
125 Kbps, 250 Kbps, 500 Kbps
RS485CommunicationRate
9.6 Kbps,19.2 Kbps,38.4 Kbps
MAC ID Switches
DeviceNet™: 2 switches, 10 positions: 0,0 to 6,3, 1 to 254
EtherCAT®: 3 switches, 16 positions
RS485: Set address over RS485 - Station Addresses 0,0 to 9,9
Network Size
DeviceNet™: Up to 64 nodes
EtherCAT®: Up to 4095 nodes
RS485: Up to 32 nodes
Indicators
DeviceNet™: LED Network (green/red), LED Module (green/red)
EtherCAT®: LED Power (green), LED Run (green), LED Error (red), LED Comm (green)
RS485: LED Comm (yellow), LED Error (red)
Weight
<3 lbs (1.36 kg)
Compliance
CE

Features

Digital IO Options

The GPCA digitally controlled pressure controller is available with EtherCAT®, DeviceNet™ or RS485 digital I/O. The digital control electronics utilize the latest in MKS control algorithms providing fast and repeatable response to set point throughout the device control range. Typical response times are less than 1 second dependent on installation conditions. Included is a digital calibration that yields 1% of set point accuracy.

High Purity Applications

The GPCA metal-sealed pressure controller with its 10 microinch, electropolished surface finish is well suited for use in high purity process applications. The GPCA is available with a normally closed valve and may be configured for controlling either inlet pressure to the device or the outlet pressure of the device.