HELIX GRANVILLE-PHILLIPS Convectron ATM Instruction Manual page 95

S
Service form 71
Setpoint relays
activation direction 26, 50
analog and power on indicators 34
analog Convectron gauge 27-30
analog differential pressure sensor 31
analog differential pressure voltage 31
analog module 26
analog relay 1 behavior 26
analog relay 2 activation direction 33
analog relay 2 behavior 27
analog test point for relay 1 28
analog test point for relay 2 32
configuring for application 13
contact rating 74
disabling operable RS-485 53
hysteresis 26, 50
jumpers for analog relay 2 activation direction 33
range 26, 50
reading analog 34
reading RS-485 53
reading RS-485 status 54
RS-485 activation direction 50
RS-485 assignments, programming 53
RS-485 assignments, reading 53
RS-485 module 45, 49-52
RS-485 relay 1 and 3 behavior 51
RS-485 relay 2 and 4 behavior 51
specifications for analog 76
specifications for RS-485 77
test point voltage versus pressure 29-30
type 74
®
Convectron ATM Vacuum Gauge Module Instruction Manual
Specifications 73-78
analog and RS-485 modules 73-75
analog module 76
analog output 76
analog setpoint relays 76
CE compliance 73
Convectron gauge internal volume 74
Convectron gauge sensing wire 74
differential pressure measurement 73
I/O connector 74
module dimensions 75
mounting position 74
physical characteristics 75
power supply 74
RS-485 module 77
RS-485 optional display 78
RS-485 setpoint relays 77
setpoint relays 74
temperature 73
vacuum chamber pressure measurement 73
vacuum connections 75
Switches for RS-485 address 42
T
Temperature
non-operating 73
operating 73
Test points
analog atmospheric pressure calibration 16, 35
analog setpoint relay 1 16, 28
analog setpoint relay 2 16, 32
analog vacuum chamber
pressure calibration 16, 36
common 16, 28, 32, 35, 36, 37
diaphragm zero calibration 16, 37
Testing Convectron gauge 66
Theory of operation 79-81
Convectron gauge 79
Convectron heat-loss Pirani gauge 80
differential pressure sensor 79
Piezo resistive diaphragm sensor 79
Wheatstone bridge 80
Index
87