17 |
P a g e
Rev 2-0 8/1/2018
T
T
E
E
S
S
T
T
A
A
N
N
D
D
C
C
A
A
L
L
I
I
B
B
R
R
A
A
T
T
I
I
O
O
N
N
Be sure to follow all codes and company procedures that pertain to
the maintenance, repair, testing, and calibration of all safety
equipment, including this detector. At a minimum, the detector
must be tested after installation and at least once a month in critical
areas and once a quarter in non-critical areas thereafter to ensure it
is operating correctly. Also, the detector must be calibrated at least
once a year to ensure it is detecting and displaying ammonia
concentration accurately.
At the time of calibration, you must use certified test gas. The mix
of ammonia to air equal to the calibration set point. This can be
purchased from Cool Air Inc. or their distributors.
The detector is initially calibrated and programmed at the factory.
However, if a new ammonia sensor is installed, the detector must be
recalibrated.
All tests and calibrations must be recorded on an appropriate log
sheet.
T
T
e
e
s
s
t
t
i
i
n
n
g
g
t
t
h
h
e
e
D
D
e
e
t
t
e
e
c
c
t
t
o
o
r
r
The detector hardware and the connected system response can be
tested without exposing the sensor to ammonia.
R
R
otate the rotary
switch to position 5. Pressing the “DOWN” button will force the
detector to simulate an ammonia concentration equal to the LOW
Alarm Set Point. Pressing the “UP” button will force the detector to
simulate an ammonia concentration equal to the HI Alarm Set Point.
The 4 to 20mA output current will indicate the simulated ammonia
concentration according to the 4 to 20mA range selected.
To test the detectors response to ammonia (for best results, allow at
least 20 minutes after first applying power to the detector):
1.
Open the detector enclosure and place the detector in
service mode, if needed. This step deactivates the Lo-
Alarm, Alarm, and Hi-Alarm outputs. In some
applications, if alarming is required, leave the detector in
normal operating mode.
Summary of Contents for LBW-WATCHMAN-EC
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