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Shanghai Changai Electronic Technology Co., Ltd
Series hydrogen analyzer
NegotiableUpdate on 03/13
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Overview
The GNL-400 series hydrogen analyzer adopts imported high-performance hydrogen gas sensor and microprocessor technology, with functions such as LCD display, upper and lower limit alarm, standard signal output, and relay contact alarm output. Suitable for continuous monitoring of trace hydrogen concentration in gases such as air, nitrogen, oxygen, argon, etc.
Product Details
GNL-400Trace hydrogen analyzer
Product Features:
The instrument adopts a large screen LCD display with a fully Chinese operation menu
◆ Equipped with timed automatic storage function and the ability to view stored data at any time
◆ Equipped with RS232 communication port, it can connect to a computer to achieve real-time data transmission, data storage
◆ Can set upper and lower limit alarm points, with alarm contact output
◆ Can be calibrated online with standard gas
Technical Specifications
Display: 128 × 64 LCD monitor
Measurement accuracy: ≤± 2% F.S
Response time: T90 ≤ 5s
Repeatability:<± 1% F.S
Stability: Zero drift ≤± 2% F.S/7d
Range drift ≤± 2% F.S/7d
Working temperature: 0-45 ℃
Environmental humidity:<80% RH
Sample gas flow rate: 200-400ml/min
Sample gas pressure: 0.035MPa ≤ inlet pressure ≤ 0.21MPa
Working power supply: AC220V ± 10%, 50/60Hz, power consumption ≤ 15VA
Analog output signal: 0/4~20mA (photoelectric isolation)
Alarm contact capacity: AC250V/3A DC24 3A
Measurement medium: containing H2Binary mixture gas (background gas and H)2Significant difference in thermal conductivity)
Sensor principle: Microfluidic thermal conductivity
Sensor lifespan:>24 months (under normal usage conditions)
Instrument weight: approximately 3.7kg
Installation dimensions: 133mm × 133mm × 250mm (W × H × D)
GNL-H400L is wall mounted
| model | range | principle |
| GNL-400 | 0~2000/5000ppm 1% H2 | Principles of Electrochemistry |
| GNL-400F | 0~10/20/30/50% H2 | Thermal conductivity principle |
| GNL-400L | 80~99.99% H2 | Thermal conductivity principle |
Application fields:
Online analysis of trace hydrogen in high-temperature sintering furnaces for nitrogen production from air separation, chemical processes, magnetic materials, and various mixed gases.
Ordering Notice (Please specify when placing an order)
Tested gas pressure: positive pressure, slight pressure, or negative pressure
Main components, impurities, and sulfides of the tested gas
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