RAD-7 electronic radon meter is a versatile instrument and the basic instrument of the comprehensive radon gas testing system. It can be operated in different modes for different purposes. The manual describes the features and usage of the instrument.
This manual explains how to unpack, install, and safely operate the RAD‑7 radon measurement instrument. It covers basic safety rules, keyboard lock recovery, clock setting, and the step‑by‑step procedures for both continuous and absorption‑mode testing.
Later sections describe the serial‑port communication parameters, battery charging and maintenance, calibration services, and detailed technical specifications such as measurement range, sensitivity, power requirements, and environmental limits. This manual is written in Chinese.
| Measurement range | 0.1‑10000 pCi/L |
|---|---|
| Absorption mode sensitivity | 0.2 CPM/pCi/L |
| Normal mode sensitivity | 0.4 CPM/pCi/L |
| Power supply | 110 V or 220 V AC |
| Battery voltage range | 6.00 V – 7.20 V |
| Operating temperature | 0 °C – 50 °C |
| Data storage capacity | 1000 measurements |
Connect the power cord, set the unit to fast‑charge mode, and the battery will be fully charged in about 24 hours.