65-2662XL-04 M2A-XL Transmitter
Chapter 1: Introduction
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7
Specifications
Table 1 lists specifications for the M2A-XL.
WARNING: When using the M2A-XL, you must follow the instructions and warnings in this
manual to assure proper and safe operation of the M2A-XL and to minimize the
risk of personal injury. Be sure to maintain and periodically calibrate the M2A-
XL as described in this manual.
Table 1: M2A-XL Specifications
Target Gas/Detection Range
Hydrogen Sulfide: 0 - 100 ppm, 1 ppm increments
Alarm Settings (Alarm 1/Alarm 2)*
10 ppm/50 ppm
Sampling Method
Diffusion
Input Power
10 - 30 VDC
Controls
• Three push button switches
• Three magnetic switches for non-intrusive calibration
Weight
5.5 lbs.
Signal Output
4 to 20 mA with impedance maximums listed below
• -12 VDC: 500 ohms impedance max
• -24 VDC: 1000 ohms impedance max
RS-485 Modbus
Operating Temperature
-40°C to 40°C
Accuracy
± 5% of reading or ± 2 ppm H
2
S (whichever is greater)
* These are the RKI factory settings. You can change the alarm settings in Configuration Mode. See
