日本Rikenkeiki理研可燃气检测仪SD-D58DC TYPE GP  日本Rikenkeiki理研可燃气检测仪SD-D58DC TYPE GP Suction Type Gas Detector Head D58 series SD-D58 Features ・Drawing pump of large flow rate built-in. ・Flow rate decreasing detector sensor installed. ・Easy maintenance owing to unitizing components to be 　exchanged periodically. ・One-man maintenance possible.   Model list   SD-D58･AC/DC (Catalytic combustion method,                              New ceramic method)   SD-D58･AC/DC･GH (Semiconductor method)  Specification Downloads Videos Options Sampling method Suction type/Single type Principle of detection Catalytic Combustion Method, New Ceramic catalytic Method, Semi-Conductor Method, Hot Wire Type Semi-Conductor Method, Thermal Conductivity Method Type of alarm Gas alarm / fault alarm Explosion protected construction Flameproof enclosures Explosion-proof class ATEX : Ⅱ 2G Ex db h ⅡB+H2 T4 Gb Ingress proof rating IP67 Approvals Japan Ex, ATEX, Taiwan Ex, China Ex CE marking EMC / ATEX / RoHS (DC specification only) Power source 100 to 110 VAC ±10 % 50/60 Hz 24 VDC ±10 % Dimensions Approx. 197 (W) × 286 (H) × 140 (D) mm (excluding projections) Weight Approx. 5.8 kg Operating temperature range AC spec. : 0 to +50 ℃ (no sudden changes) DC spec. : -20 to +53 ℃ (no sudden changes) Operating humidity range 0 to 95 %RH (no condensation)