Formaldehyde detector Z-300

Formaldehyde detector (USA) Model: Z-300 instrument Information: Z-300 (ES300) Formaldehyde detector formaldehyde detector Z-300 is a handheld instrument can detect formaldehyde concentration 0-30ppm, the resolution 0.01ppm. The instrument can monitor the concentration of formaldehyde in the air to test the indoor air quality. The instrument can operate at a single point or continuous mode. Single-point mode, the instrument displays a high-precision data. Continuous mode, the instrument can be pre-set to 90 minutes of continuous operation. Once the preset time has elapsed, the instrument will calculate the entire measurement process mean exposure value. If you want to get the highest accuracy, it recommended short-term measure. Use the optional data logging capabilities, the instrument can store all of the exposure points every use. Dynamically managing memory according to the operation time, in order to achieve maximum storage capacity. Memory can be stored for up to 90 individual measurements or 13,500 data. Date and time stamp for each set of data used to store each start. All memory contents can be easily uploaded to the terminal devices supporting Microsoft Windows software or computer operating system. Works instrument uses a 4-electrode type electrochemical sensors, comprising a working electrode and an auxiliary electrode active. Auxiliary electrode signals used for temperature compensation, can enhance the selectivity of the sensor. Sensor response is proportional to the concentration of formaldehyde in the air. 0.01PPM resolution compact, lightweight, durable LED battery status display short-term average value calculating technical parameters Electrochemical sensor Typical range 0-30ppm 34ppm maximum range resolution 0.01ppm warm-up time 3 minutes (normal state) Response time <60 seconds ( 90%) relative humidity 15-90%, non-condensing sensitivity loss <5% / year Repeatability 1% of the signal size 4.75 \ "; x2.5 \"; x1.5 \ "; weight 170 g Power supply 9V alkaline battery Battery life 240 hours Sensor life> 2 years Operating temperature 0-40 ℃ zero drift <0.002ppm / min