Gas Leak Detector (420473-2050) - Kidde Technologies SR2033 Operation & Maintenance Manual

GAS LEAK DETECTOR (420473-2050)

The PM-MDS Gas Leak Detector utilizes a temperature compensated metal-oxide sensing
element to detect combustible gases including CNG and LNG. The detector contains two
preset detection thresholds:

Trace alarm (20% LEL of Methane)

Significant alarm (50% LEL of Methane)
The PM-MDS Gas Leak Detector contains a Bi-colored status LED which indicates:
Status LED
Solid Green
Flashing Red
Solid Red
Flashing Red/Green
No LED
NOTE: The status LED illuminates blinking green for the first 30 seconds after
power-up.
After a significant gas leak is detected, power to the detector must be cycled to reset the status
LED.
CAUTION! CARE SHOULD BE TAKEN WHEN CLEANING THE COMPARTMENTS WHICH
HOUSE GAS LEAK DETECTORS; AVOID EXPOSURE TO SILICONES OR
SOLVENTS AND AVOID DIRECTLY HITTING WITH HIGH-PRESSURE STEAM
CLEANING OR PRESSURE WASHING SPRAY.
The gas sensing element inside the detector is a consumable item with a limited service life
dependent on environmental conditions. The sensing element is field replaceable and is
included in the Combustible Gas Detector Rebuild Kit (P/N 420483).
Operating Temperature Range
Quiescent Current
Operating Voltage
Response Time
Field Calibration
PROPRIETARY INFORMATION – Refer to the restrictions provided on the Title Page of this document.
EAR DATA - Subject to the export control restrictions on the Title Page of this document or file
Sensor operational
Trace Gas level detected (between 20% and 50% LEL)
Significant Gas level detected (50% LEL or higher)
Sensor Fault
Sensor without power
FIGURE 5 - PM-MDS GAS LEAK DETECTOR
Controlled by ECCN:EAR99
Indication
-40⁰F to 185⁰F (-40⁰C to 85⁰C)
40mA
9 to 32Vdc
Within 90 seconds of exposure
to alarm level concentration
Not Required
9
181922 Rev B