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Chapter 4
Figure 4-1
RS–485 version front panel
pressure display
(±XX±Y format)
40
4.
Develop 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.
Set the module address, parity, and baud rate as instructed on pages
42–44.
7.
If the module will measure the pressure of a gas other than N
you must adjust relay setpoints for the process gas that will be used. See
pages 49–54.
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.
• Figure 4-1 illustrates the RS–485 version front panel.
• Table 4-2 lists features of the front panel.
Optional LED
Pressure unit indicators
®
Convectron
ATM Vacuum Gauge Module Instruction Manual
Setpoint activation indicators
or air,
2
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