This document introduces the technical parameters, instrument accessories, sensor principle, instrument description, operating instructions, sensor water injection maintenance, battery charging and replacement, formaldehyde concentration conversion formula, common faults, and contact information of INTERSCAN's 4160-19.99m formaldehyde analyzer.
The INTERSCAN 4160-19.99m is a portable formaldehyde gas analyzer designed for accurate measurement of concentrations up to 19.99 ppm. It features a sealed sensor chamber, fast response, and optional external alarms.
This manual provides detailed guidance on installing the unit and accessories, performing measurements, calibrating with SPAN and ZERO functions, replacing the sensor and C‑12 filter, and troubleshooting common faults. Safety precautions and maintenance procedures are also described. This manual is written in Chinese.
| Measurement range | 0‑19.99 ppm |
|---|---|
| Accuracy | ±2 % Rd ±0.01 ppm |
| Resolution | 0.01 ppm |
| Repeatability | ±0.5 % ES |
| Drift (2‑point, 24 h) | +1 % ES |
| Temperature drift (24 h) | ±1 % FES |
| Response time | 60 s |
| Warm‑up time | <1 s |
| Dimensions (W×H×D) | 178 mm × 102 mm × 22 mm |
It can measure formaldehyde concentrations from 0 to 19.99 ppm.
The response time is about 60 seconds.
Rotate the function knob to the ZERO position; the instrument will set the zero point automatically.