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Model 9016 X-Purge Operator Interface
3 Pre-Installation Testing
Before installing your system in its final location, you may wish to test it to verify that the
purge system is functioning correctly.
3.1 Division 1 X-Purge Test
IMPORTANT NOTE:
Equipment Required
• Clean, dry purge air, or an inert gas supply equipped with local water/oil separator
or filter capable of supplying 40 to 300 SCFH at 30 to 60 PSI.
• Fittings and tubing for purge air or inert gas supply (0.25" NPT Male to connect to
the inlet of the purge system).
• Local air pressure shutoff valve.
• 120V, 8A or 240V, 4A AC power (w/ Ground) with pigtails, tinned bare wire and
stripped 0.25"
Procedure
1. PLACE UNIT in a safe area near a source of the purge gas to be used .
2. Install pressure regulator, along with a water/oil separator or filter, a shutoff
valve, a pressure relief valve, and a pressure gauge in the pressurized purge air (or
inert gas) line (see drawing P007).
3. INPORTANT, Bleed the pressurized purge air (or inert gas) line ensuring that any
dirt, moisture, and contaminants are cleared from the line before connecting the
pressurized purge air (or inert gas) line to the unit.
4. Connect the purge gas line to the inlet of the regulator on the Purge Unit.
5. Remove cover of the explosion-proof I/O casting (see drawing P007)
6. Connect an AC power line to the power interface board (see drawing P008). For
connection, location, and wiring, see drawing E017 (NOTE1).
7. Close all access doors and covers.
8. Apply purge gas to the system by opening the shutoff valve. Adjust pressure
regulator on the air-in box (see drawing P008) to 40 PSI.
9. Apply AC power to the unit.
10. When pressure inside the unit reaches 1.0" WC and > 40 SCFH, the Purge Status
LED should illuminate yellow, indicating that it is purging.
IF THE INDICATOR DOES NOT ILLUMINATE a thorough inspection for leakage of
the unit must be made. Panel gaskets can be checked with a soap solution. If
leaks are not visually apparent, verify that the pressurized air is clean, dry and is
40 PSI at the inlet.
DO NOT ATTEMPT TO OPEN THE ENCLOSURE WHILE IT IS PRESSURIZED!
OPENING PRESSURIZED ENCLOSURE CAN RESULT IN SERIOUS INJURY!
February 2022
Pre-installation testing should always be conducted in a safe area.
6
Daisy Data Displays, Inc.
D010-000002
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