Gas Detectors › Gas Suction Pump RP-3R(S)
Riken Keiki Gas Suction Pump Unit RP-3R(S) for GX-3R and GX-3R Pro
Attachable suction pump for the GX-3R and GX-3R Pro — enables active sampling in confined spaces, tanks and hard-to-reach areas.

Riken Keiki
Gas Suction Pump Unit RP-3R(S) for GX-3R and GX-3R Pro
The RP-3R(S) Gas Suction Pump Unit is designed to extend the capabilities of the GX-3R by enabling active gas sampling. It allows accurate measurements in confined spaces, tanks and remote locations where diffusion alone is not sufficient.
Compact, lightweight and easy to attach, the unit ensures safe and efficient gas detection in marine, offshore and industrial environments. With consistent flow performance, long battery life and built-in safety alerts, it delivers dependable operation under demanding conditions.
Specifications
- Sampling method
- Suction type
- Type of alarm
- Low flow alarm / low battery voltage alarm
- Explosion protected construction
- Intrinsic safety
- Explosion proof class
- IECEx: Ex ia IIC T4/T3 Ga · ATEX: II1G Ex ia IIC T4/T3 Ga
- Approvals
- Japan Ex, ATEX, IECEx
- Power source
- AA alkaline battery (×1)
- Continuous operation
- High mode: approx. 10 h · Low mode: approx. 16 h (at 25 °C, new battery)
- Dimensions
- Approx. 93 (W) × 95 (H) × 29 (D) mm [RP-3R(S)] · 94 × 95 × 29 mm [RP-3R(Pro/S)]
- Weight
- Approx. 130 g
- Operating temperature range
- -20 °C to +50 °C (no sudden changes)
- Operating humidity range
- 0 to 95 % RH (no condensation)


