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PPM-400ST formaldehyde detector Beijing Hengtai Ruibo Technology Development Co. Ltd. Chinese general agent - perennial cash supply
Overview of PPM-400ST formaldehyde detector:
PPM-400ST formaldehyde detector formaldehyde analyzer is the world's most advanced equipment, specifically for health and epidemic prevention, environmental protection, indoor environment, direct labor and health field analyzer to detect low concentrations of formaldehyde content. The detector adopts voltage type diffusion electrochemical sensor, which has the advantages of linear stability, accurate result, high precision, strong anti-interference ability, long service life and simple operation. (2) electrochemical sensor (patent): the use of advanced electrochemical sensor technology to determine the concentration of formaldehyde in the atmosphere.
PPM-400ST formaldehyde detector technical indicators:
1 measurement range: 0-10/20/30ppm
2 minimum reading: 0.001 ppm (0.001mg/M3)
3 Accuracy: reading 2%
4 volume: 150 (L) * 80 (W) * 34 (H) mm box: 266 * 230 * 50
5 weight: 750g
6 power: 9V battery (no need to charge)
UK PPM-400ST formaldehyde detector specification:
Sampling method through the built-in pump, 10ml air samples collected
Sampling frequency 1-3 minutes (depending on the samples collected before)
Response time low concentration of about 8 seconds, high concentration of about 60 seconds
Volume / weight 150 x 80 x 34mm / 270g containing battery
Sensor PPM research and development of electrochemical principle
The detection range of the basic range: 0 ~ 10ppm, 0 ~ 12.3mg/m3
Select range: 0 ~ 80ppm, 0 ~ 98.3mg/m3
Discrimination degree 0.01ppm
According to 4-5, the accuracy of 2% repeated measurements in 12 Taiwan formaldehyde analyzer, and the results of Statistics:
The accuracy of 10%, according to the provisions of the United States NIOSH, measuring method of acceptable use, measurement of formaldehyde concentration relative humidity ranged from 0.3ppm in 25-70% environment. The acceptable standard of NIOSH is the result of the data which is about 25% of the true value in the 95% confidence region. And 94% PPM formaldehyde detector can achieve the standard NIOSH. You
The type of interchangeable data CMOSens
Temperature range: - 40 ~ 128 ~ C
Relative humidity: 0 ~ 100%RH
Precision temperature: 0.4 degree C; relative humidity: + 3%RH.
Another option to upgrade to + 0.3 degrees C, + + 1.8%RH.
Calibration of the manufacturer according to the ISO/IEC17025 calibration, can be traced back to the NIST and the national physical laboratory"
Specification configuration:
Host (including battery) 1 units, 1 bottles of phenol filter (10), 1 formaldehyde calibration tube, 1 portable box, and other accessories / 1 sets of files
PPM-400ST formaldehyde detector using method:
1/ sampling boot: press the switch (ON-OFF), display, flash three seconds to check the sensor, when to see the display 0 when the instrument is ready to sample preparation. Sampling: in the atmosphere to be sampled, holding the instrument, as is the key (sample), display (Run), to hear the internal sampling pump for about 2 seconds. Reading: in the instrument to sample analysis process, you will see 0 flash, in about 10 seconds after the visible reading, which is the concentration of formaldehyde, in order to ppm as the unit. Turn off: press the switch (ON-OFF) that is shut down, if you forgot to shut down in 5 minutes after the PPM-400st formaldehyde detector will automatically shut down.
2/ instrument sensor reset stage sensor reset: after a test, it should be shut down for a few minutes to reset the sensor. In general, the higher the concentration of formaldehyde, the instrument need to be reset if the time president, has not reset before starting the measurement sensor, can be seen, flash, and sampling pump will not work when I saw 0 flash 3 seconds sensor has been reset after you boot, then can be measured next time.