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- Last added
- 2012-02-04
Featured QRD1112B manuals
QRD1112B Ammonia Decomposition Rate Instrument User Manual
The QRD1112B ammonia decomposition rate analyzer measures the decomposition rate by detecting the change in oxygen concentration after ammonia is decomposed, suitable for nitrogen furnace atmospheres and gas generation devices. It operates by heating a platinum‑wire sensor whose resistance changes with gas thermal conductivity, producing a voltage output proportional to H₂ concentration.
The manual provides technical data, installation instructions, electrical system diagrams, startup procedure, zero and full‑scale calibration steps, and warranty information. It specifies required gas conditions, environmental limits (ambient temperature 5–40 °C, relative humidity up to 80 %, no corrosive gases), and power requirements (220 V ±10 %, 50–60 Hz). This manual is written in Chinese.
Covers: Purpose and Usage Conditions · Main Technical Data · Principle of Operation · Complete Set · Electrical System · Installation
Latest QRD1112B manuals
QRD1112B Ammonia Decomposition Rate Instrument User Manual
User Manual 5 pages · 128 KB · ZHThe QRD1112B manual explains the instrument’s purpose, technical specifications, installation, operation, and calibration for measuring ammonia…
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in QRD1112B manuals
What is the measurement range of the QRD1112B analyzer?
It measures from 0 to 100 % H₂.
From: QRD1112B Ammonia Decomposition Rate Instrument User Manual
How is the zero point calibrated?
After 30 minutes of thermal equilibrium, introduce a 0.5 L/min zero‑standard gas (air) and adjust the zero‑adjustment potentiometer until the output reads 0 mV.
From: QRD1112B Ammonia Decomposition Rate Instrument User Manual