HELIX GRANVILLE-PHILLIPS Convectron ATM Instruction Manual page 92

Index
Convectron gauge
analog calibration at atmospheric pressure 34–35
analog calibration at
vacuum chamber pressure 36
analog setpoint relay 27–30
base 67
internal volume 74
removal 68, 69
removal and replacement 67–69
RS-485 calibration at atmospheric pressure 56
RS-485 calibration at
vacuum chamber pressure 56
sensing wire filament 74
test 66
theory of operation 79
Convectron heat-loss Pirani gauge 80
Customer service 3, 61
D
Damage requiring service 61
Defaults for RS-485 module 57, 58
Definitions of terms 3
Differential pressure measurement 73
Differential pressure sensor
analog setpoint relay 2 31
calibrating analog zero for 37
calibrating RS-485 zero for 57
theory of operation 79
Digital format 77
Digital protocol 77
E
Error messages, troubleshooting 65, 66
Error responses from RS-485 module 43
84
F
Factory defaults for RS-485 module 57
Factory settings for analog module 38
Firmware version for RS-485 module 57
Fittings
1/8 NPT pipe thread 9
ConFlat flange fitting 9
KF flange 9
VCR type 9
Front panel
features of analog 16
features of RS-485 41
G
Ground
connection to vacuum chamber 12
wiring 12
H
Hysteresis
analog setpoint relays 26
RS-485 setpoint relays 50
I
I/O connector 74
analog module 11, 76
RS-485 module 11, 77
Indicators
analog setpoint and power on 34
analog setpoints 16
power on 16
Installation 5–14
attaching module to vacuum chamber 9
calibrating Convectron gauge 13
configuring relays for application 13
eliminating radio frequency interference (RFI) 14
locating and orienting module 7
module components 5
mounting position 74
pressure relief devices 7
replacement Convectron gauge 69
wiring 10
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Convectron ATM Vacuum Gauge Module Instruction Manual