65-2660XL-XX-04 M2A-XL Transmitter
Chapter 1: Introduction
•
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
Carbon Dioxide (CO
2
)
Detector
65-2660RK-01-04
65-2660RK-02-04
65-2660RK-03-04
65-2660RK-05-04
Detection Range
0 - 9,000 ppm
0 - 5,000 ppm
0 - 5.00% volume
0 - 50.0% volume
Increment
20 ppm
20 ppm
0.01% volume
0.1% volume
Alarm 1*
2,000 ppm
2,500 ppm
0.50% volume
50.0% volume
Alarm 2*
5,000 ppm
5,000 ppm
3.00% volume
50.0% volume
Construction
(housing)
Explosion-proof Junction Box, NEMA 4X
Area
Classification
Explosion-proof for Class I, Groups B, C, and D
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 input: 500 ohms impedance max
-24 VDC input: 1000 ohms impedance max
• RS-485 Modbus
Operating
Temperature
-40°C to 50°C
Accuracy
± 5% of reading or ± 2% of full scale (whichever is greater)
* These are the RKI factory settings. You can change the alarm settings in Configuration Mode. See
