HELIX GRANVILLE-PHILLIPS Convectron ATM Instruction Manual page 25

Table 3-2 Relay setpoints and activation direction
Relay Setpoint (V)
Relay 1
Relay 2
Table 3-3 Tasks and page references for analog module operation
Task
Reading the analog output
Programming relay setpoints
Setting relay activation direction
Reading activation or deactivation status of relays
Calibrating Convectron gauge at vacuum chamber pressure
Calibrating Convectron gauge at atmospheric pressure
Calibrating differential pressure sensor zero
Resetting parameters to factory defaults
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Convectron ATM Vacuum Gauge Module Instruction Manual
Pressure corresponding to setpoint (Torr)
4. Draw a circuit schematic that specifies exactly how each piece of
system hardware will connect to the module relays.
5. Attach a copy of the process control circuit diagram to this manual for
future reference and troubleshooting.
6. If the module will measure the pressure of a gas other than N
you must adjust the relay 1 setpoint for the process gas that will be
used. See pages 26–33.
If you need application assistance, phone a Helix Technology application
engineer at 1–303–652–4400 or 1–800–776–6543 within the U.S.A., or
mail custserv@helixtechnology.com.
Once the module is operating, you may use the module front panel and the
jumpers inside the module to perform the tasks listed in Table 3-3.
Analog Module Operation
Activation direction
Activate with decreasing vacuum
chamber pressure
Activate with increasing differential pressure
(factory default)
Activate with decreasing differential pressure
For instructions, see this page
See pages 18–25
See pages 26–33
See page 33
See page 34
See page 36
See page 34
See page 37
See page 38
or air,
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