HL-NT multi-channel temperature and humidity recorder is a powerful and technologically advanced recorder. It can work independently without software or with HW4 software. HL-NT has a compact standard independent module, temperature and humidity integrated measurement display, alarm function, precise temperature and humidity measurement and good short-term and long-term stability, can be connected to ROTRONIC's various interchangeable digital sensors, IP65 protection grade, has a certain anti-vibration ability, 9V laminated battery (can be used with a rechargeable battery) or external power supply, CF card storage memory, realize the unlimited memory of data, FDA CFR21/11 and GAMP 4 certification, optional expansion base: expandable 4-way digital temperature and humidity sensors or 4-way PT100 and 2-way switch quantity input and other features.
The HL-NT series is a compact, IP65‑rated temperature and humidity recorder that can operate independently via its front panel or be linked to the HW4 software for extended functionality. It supports up to four digital temperature/humidity sensors or PT100 inputs, offers alarm functions, and stores data on a CF card.
The manual covers system components, sensor types, optional expansion bases, power options (9 V battery or AC adapter), software communication, calibration procedures using ROTRONIC standard solutions, and maintenance guidelines. This manual is written in Chinese.
| Protection rating | IP65 |
|---|---|
| Storage medium | CF card, standard 16 MB |
| Record interval | 5 seconds to 24 hours |
| Power supply | 9 V battery (rechargeable) or external AC adapter |
| Battery life | greater than 1 year (depends on configuration) |
| Operating environment | 0–100 %RH, –30 to 70 °C (display), –10 to 60 °C (no display) |
| Measurement accuracy | ±0.5 %RH / ±0.3 °C |
It can run from a 9 V battery (rechargeable) or from an external AC adapter (AC1211, 220 VAC to 9 VDC).
Data are stored on a CF card, which comes standard with 16 MB of memory.
Use ROTRONIC standard humidity solutions (e.g., EAXX‑SCS) and follow the multi‑point calibration procedure described in the manual.
The recorder can be set to log data at intervals from 5 seconds up to 24 hours.