RD-3000A ระบบตรวจสอบการรั่วไหลของก๊าซไฮโดรเจน

Brief Introduction

RD-3000HS multi-channel hydrogen leakage monitor system consists of monitor host and sensor unit. It's used to monitor the content of hydrogen within the lower limit of hydrogen-cooled generator, with a maximum 16 sensing units and centralized control for multi-point.

Main Features

1. Electrochemical sensor, only responds to the measured hydrogen, without influence by other gases, good selectivity, quick response and short recovery time
2. According to the location of the different measuring points, the sampling is designed specifically for the generator enclosed bus, neutral point, oil return system at gas and exterior end and generator stator cooling water tank.
3. The hydrogen-permeable membrane in the air chamber of probe can effectively isolate the oil, water, nitrogen gas and against aging. It can be long used without mechanical stress.
4. This system does not transfer the explosive and flammable gases, so as to avoid creating a new risk.
5. LCD numeric display, alarm output signals as well as analog output signals.
6. Compact structure, easy to install, can display directly the hydrogen concentration of measured point.
7. The function of on-line monitoring is stable, maintenance on-site is low.

Technical Parameters

The RD-3000 monitor host
Display:
The color displayed: TFT 256 color (LCD)
Analog input:
The input type: 1~8 ways, two-wire, 4~20mA transmitter (max 16 channels)
Voltage power consumption: 24V≤ 0.48W
Connection method: 2-core shielded cable
Analog output:
The output type: 1~8 roads, two-wire, 4~20mA transmitter (max 16 channels)
Out impedance: ≤ 750ohm
Connection methods: 2-conductor shielded cable
Relay:
Contact form: Normally open
Output mode: 1~8 branch channel alarm, 1 master channel alarm (max 16 channels)
Relay contact capacity: 1A, 24V DC or 1A, 120V AC
Other:
Alarm memory: 8000 pieces of alarm messages
Working voltage: 110V AC~265V AC, 40~63Hz, Power 65W
Installation way: Wall hanging 440mm * 330mm * 130mm (L*W*H)
Weight: About 9.5 kg
Sensors:
Measuring range: 0~4.00% (0~100%LEL)
Accuracy: ± 2%F. S
Sampling method: Diffusion
Environment temperature: -10° C~50° C
Environment humidity: 0~98%RH
Explosion-proof grade: ExiaIICT3
Working voltage: 24V DC Power 1W