RKI Instruments 65-2481RK - Manual (Page 5)

65-2481RK Multi Point Detector • 1
Overview
This manual describes the 65-2481RK multi point direct connect detector. This manual
also describes how to install, start up, maintain, and calibrate the detector when it is used
with a gas monitoring controller. A parts list at the end of this manual lists replacement
parts and accessories for the detector.
Specifications
WARNING: Do not use this product in a manner not specified in this instruction
manual.
Table 1 lists specifications for the multi-point detector.
Table 1: Specifications
Target Gas 65-2481RK: LEL/O
2
/H
2
S/CO, methane calibration standard for
LEL
65-2481RK-01: LEL (IR CH
4
)/O
2
/H
2
S/CO, methane calibration
for LEL
65-2481RK-02: LEL (IR HC)/O
2
/H
2
S/CO, propane calibration for
LEL
*Note: Since the 65-2481RK is a direct connect detector, the
calibration is done at the controller.
Area Classification Explosion proof for Class I, Groups B, C, and D
Sampling Method Diffusion
Detection Range LEL: 0 to 100 %LEL (lower explosive limit)
O
2
: 0 to 25 %volume
H
2
S: 0 to 100 ppm (parts per million)
CO: 0 to 300 ppm (parts per million)
Response Time 90% in 30 seconds
Accuracy Catalytic Combustible Gas:
± 5% of reading or ± 2% LEL (whichever is greater)
IR Combustible Gas:
± 5% of reading or ± 2% of full scale (whichever is greater)
Oxygen:
± 0.5% O
2
Hydrogen Sulfide:
± 5% of reading or ± 2 ppm H
2
S (whichever is greater)
Carbon Monoxide:
± 5% of reading or ± 5 ppm CO (whichever is greater)
Operating Temperature 23°F to 104°F (-5°C to 40°C)