Honeywell EC-P2 User Manual download pdf (Page 14)

Honeywell EC-P2 Instruction and Installation Manual

External ﬂowmeter indicates no ﬂow: Verify that pump is running. Check that the

manifold screws are tight and the extension wand connection is tight.

Unit does not respond when keys are pressed: Press and hold all four buttons

for ﬁve seconds. This will reset the Honeywell EC-P2. Turn the unit back on by

pressing the PWR button.

High reading won’t clear: When the sensor is exposed to very high gas

concentrations, it takes a relatively long time for the sensor to clear. Leave the unit

running in a clean environment for a few hours to clear the sensor. If it doesn’t clear

after six hours, the sensor may have been damaged. Contact Honeywell Analytics

for a replacement SMART-CELL.

Unit is in alarm with gas reading of 0 ppm: Check the alarm setpoints and

alarm functions as described on page 12. Verify that alarm is not programmed as

a downscale alarm, and that the setpoint is above zero.

Calibration gas flowmeter

Vent through flowmeter

Bypass Tee

Calibration gas bottle

(use only Certified Calibration Gas)

1.0

LPM AIR

CAUTION

DO NOT BLOCK INLET

OR OUTLIET PORTS

INLET

OUTLET

TEST UNIT PRIOR TO USE

Figure 4. Calibration of the Honeywell EC-P2 Sensor using a Bypass Tee

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Honeywell EC-P2 User Manual Page 14