Specifications - RKI Instruments M2A Operator's Manual

Specifications

Table 1 lists specifications for the M2A.
Target Gas/Detection Range
Alarm Settings
(Alarm 1/Alarm 2)
Construction (housing)
Area Classification
Sampling Method
Input Power
Controls
Weight
Signal Output
Operating Temperature
Accuracy
*
These are the RKI factory settings. You can change the alarm settings in Configuration Mode. See
"Viewing & Changing M2A Parameters" on page 24.
WARNING:
M2A Transmitter Operator's Manual
Table 1: M2A Specifications
CH : 0 - 100% LEL, 1% LEL increments
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10 %LEL/50 %LEL
Explosion-proof Junction Box, NEMA 4X
Explosion-proof for Class I, Groups B, C, and D
Diffusion
10 - 30 VDC
• Three push button switches
• Three magnetic switches for non-intrusive calibration
4.5 lbs.
• 4 to 20 mA with impedance maximums listed below
-12 VDC input: 500 ohms impedance max
-24 VDC input: 1000 ohms impedance max
-40°C to 50°C
± 5% of reading or ± 2% of full scale (whichever is greater)
When using the M2A, you must follow the instructions and warnings in this manual to
assure proper and safe operation of the M2A and to minimize the risk of personal injury. Be
sure to maintain and periodically calibrate the M2A as described in this manual.
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