Honeywell EC-P2 Instruction and Installation Manual
11
2.6 Interference Gases
The Honeywell EC-P2 is generally quite specific to the target gas, but depending
on the target gas, other gases may cause a reading. See
Appendix B
for a listing
of potential interference gases for the various SMART-CELLs.
2.7 Alarm Functions
The Honeywell EC-P2 provides both visible and audible gas concentration alarms
and system alarms. An alarm condition will be displayed on the normal operating
screen as described on
page 8
.
In addition to the alarm indication code in the left side of the screen, an alarm
message will flash intermittently on the screen, the audible beeper will sound and
the ACK button will appear. Pushing the ACK button will silence the beeper and
stop the display flashing. The Alarm Indication Code will remain on the left side of
the screen until the alarm condition clears.
Alarm setpoints are stored on the individual SMARTCELL and can be changed by
the user as described in Section 4.
Note:
An audible alarm single beep every 60 seconds indicates that either the
Alkaline D cell battery is low or the internal rechargeable NiCad battery
is low.
2.8 Display Resolution
The Honeywell EC-P2 displays gas concentration with a resolution that depends
upon the range of the unit. Full scale ranges of 0-4.00 or below will provide resolution
of 0.01. Ranges from 0-5.0 up to 0-49.9 will provide resolution of 0.1. Full scale
ranges above 50 will have a resolution of 1.
CAUTION
DO NOT BLOCK INLET
OR OUTLIET PORTS
INLET
OUTLET
TEST UNIT PRIOR TO USE
SMART-CELL Sensor
Filter Material
Sensor alignment pin
Sensor alignment groove
Manifold lid
Inlet fitting
Sampling Wand
Outlet tube barb fitting
Thumbscrews (loosen to remove manifold lid)
Figure 3. Manifold Assembly
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