Riken Keiki GD-3EC, Technical Manual

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10. Product Specifications 10-2 SD-3SC + GD-3 specifications
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Model SD-3SC + GD-3
SD-3SC (contact model)
+ GD-3
Transmission
distance (4 - 20 mA)
For 1.25 sq (1.38 mm 2 /AWG16): Not exceeding 1.25 km
For 2.0 sq (2.08 mm 2 /AWG14): Not exceeding 2 km (with derating depending on
supply voltage)
Transmission cable
(between GD-3 units)
Shielded twisted pair cable 1.25 sq (1.38 mm
2
/AWG16)
*To ensure explosion protection, use a cable designed for use in temperatures at
least 5 °C above the maximum anticipated ambient temperature.
Transmission
distance (between
GD-3 units)
20 m (maximum)
Power source
24 V DC (18 V - 30 V DC)
*Use a power supply capable of minimum temporary output of 2.5 A to ensure that
fuses blow normally in the event of a product abnormality.
Power supply cable
Shielded cable 1.25 sq (1.38 mm
2
/AWG16) or
2.0 sq (2.08 mm 2 /AWG14) (same as transmission cable)
*To ensure explosion protection, use a cable designed for use in temperatures at
least 5 °C above the maximum anticipated ambient temperature.
Power consumption Refer to ‘10-2-3 Electrical ratings (SD-3SC + GD-3)’.
Cable connectors M25 × 1.5
Operation method Dedicated magnet control key
Operating
temperature range
−40 °C - +70 °C (no sudden changes)
In accordance with sensor specifications if restrictions apply due to sensor
specifications
Operating humidity
range
0 %RH - 95 %RH (no condensation)
In accordance with sensor specifications if restrictions apply due to sensor
specifications
Housing material Stainless steel (SCS14)
Protection level IP66/67 equivalent
Installation type Wall mounting (standard)/2B pole mounting (optional)
Explosion-proof
construction
Flame-proof constr intrinsically safe explosion-proof construction
Explosion-proof class
Varies depending on model.
Refer to <Explosion-proof performance data> in ‘2-4 Safety information’.
External dimensions
(SD-3SC)
Diffusion type: Approx. 125 mm (W) × 240 mm (H) × 88 mm (D) (excluding projections)
Weight (SD-3SC) Approx. 6.0 kg
External dimensions
(GD-3)
Approx. 125 mm (W) × 240 mm (H) × 88 mm (D)
Weight (GD-3) Approx. 4.0 kg
*When used with the contacts closed, the contacts may seize due to vibration. Keep this precaution in mind.