Kitagawa FA-490 Gas Alarm Meters (0 - 100%LEL/ 0 - 2,000ppm/ 0 - 5,000ppm/ 0 - 500ppm)

Measuring Gas (respectively):

Combustible gas in the air

Hydrogen in the air

Methane in the air

Organic solvent in the air

Detection Principle (respectively):

Catalytic combustion method (Note 1)

Hot wire semiconductor method (Note 2)

Hot wire semiconductor method (Note 2)

Hot wire semiconductor method (Note 2)

Measuring Range (respectively): 0 - 100%LEL/ 0 - 2,000ppm/ 0 - 5,000ppm/ 0 - 500ppm

Accuracy (respectively):

Within ±25% of the setting value

Within ±25% of the setting value (within a range of 1000ppm from 200ppm)
Within ±25% of the setting value (within a range of 1000ppm from 500ppm)
Within ±25% of the setting value (within a range of 200ppm from 50ppm)

Display Method: 4-digit LED digital

Alarm Method: Red LED lights intermittently and buzzer sounds intermittently

Alarm Setting: Adjustable (2 step alarm)

Failure display: Red LED lights intermittently and buzzer sounds intermittently

Power Source: AC100V±10V, 50/60Hz (AC220V as extra option)

Alarm contact output: Gas alarm : 1a or 1b contact, Faulty alarm : 1a or 1b contact, AC125V, 0.6A (Resistance load)

Analog output: 4 - 20mA

Detection Point: 1 point

Operating Temperature Range: Temperature: -10 - 40℃

Installation: Wall mount type (Panel mount type is optional)

Dimensions: 120(W)×205(H)×69(D)mm

Weight: 0.9kg

(Note 1) Conformity detector heads for catalytic combustion method : RDE-T, RD-4, RH-S

(Note 2) Conformity detector heads for hot wire semiconductor method : RDE-TS, RH-S