Riken Keiki GD-F3A-SC-A, Operating Manual

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９．PRODUCT SPECIFICATIONS
９－１．Standard specifications
Model GD-F3A-SC-A
Detection principle Galvanic cell method
Detectable gas O2
Detection method Diffusion method
Transmission method Analog transmission
Transmission specification 4-20mADC
Transmission cable CVVS 1.25mm
2
・2-core or equivalent
Transmission distance Up to 2km with CVVS 1.25mm
2
(up to 250m between the detector head and Zener barrier)
Power supply 24VDC (supplied from indicator/alarm unit)
Zener barrier MTL7728ac//MTL7728-
ZB-1A/ZB-1A+/ZB-1A-
ZB-4A/ZB-4A+/ZB-4A-
Cable entry Cable gland(Applicable cable O.D.φ8～φ11mm)
Operating temperature -10～+40℃ (non-rapidly-vary)
Operating humidity Less than 90%RH (non-condensing)
Structure Wall mounting type/mountable to pipe size 2B<50A>
Explosion-proof structure Intrinsically safe structure(by using zener barrier)
Explosion-proof grade Ex ia ⅡC T4 X
Outer dimension Approx. 140(W)×175(H)×95(D)mm
Weight Approx.1.6kg
Color Munsel 2.5Y9/2 half tone
９－２．Standard accessories
・Operating instruction manual
９－３．Optional accessories
・U-bolt (for nominal diameter 2B)
・Calibration adopter
・Zener barrier (MTL7728ac）