TOXIC GAS INSTRUMENTS
- Formaldemeter Htv-M
- Formaldemeter Htv
- Formaldemeter 400
- Formaldemeter 400ST
- Glutaraldemeter 3
- Mini IAQ Monitor
- IAQ Profile Monitor
- Instrument Desk Stand
- Instrument Wall Clamp
- Extra Memory for AMS-2
- 30dB Horn for AMS-2
- Calibration Standard
Formaldemeter™ 400ST (Exclusive to Suzhou Stanford Instruments Ltd)
The latest 3-parameter instrument from PPM Technology directly measures airborne formaldehyde concentrations as well as ambient temperature and humidity levels. The PPM 400ST is exclusive to our distributor Suzhou Stanford Instruments Ltd. in the P.R.C. and has also been awarded a P.A. Certificate.
Building on the technology developed in the popular Formaldemeter 400, with the addition of unique compensation techniques, the 400ST can now accurately measure low levels of formaldehyde — even in humid conditions — while still maintaining ease of use and simple calibration.
With further importance being put on air quality in public buildings, the workplace and in homes, the 400ST is aimed toward being the most accurate monitor while still providing quick and simple operation from a hand-held device.
|Sampling Method||10ml snatch-sample of air taken by internal pump.|
|Sampling Frequency||1 minute in normal IAQ conditions.|
|Response Time||60 seconds in 'high accuracy' mode,
approx. 8 seconds in 'lower accuracy' mode.
|Mechanical||150 x 80 x 34mm ABS plastic case.
Padded accessory-case 266 x 230 x 50mm.
|Weight||270g with 9v PP3 alkaline battery
Total kit weighs 750g.
|Type||Electrochemical manufactured by PPM Technology..|
|Range|| 0-10ppm as standard (0- 12.3 mg/m³ at 25°C).
Extended range available on request.
|Accuracy||94% of all instrument readings meet the NIOSH criteria for an acceptable method when measuring 0.3ppm of formaldehyde over a relative humidity range of 25-70%. The NIOSH criterion for acceptability is that all results fall within ±25% of the true value at the 95% confidence level.|
|Calibration||By user with supplied calibration standard or by original manufacturer.|
Temperature & Humidity Module
|Type||Interchangeable digital CMOSens®..|
|Range||-40 to +128°C, 0–100% RH|
|Accuracy|| ±0.4°C, ±3% RH
Optional upgrade to ±0.3°C, ±1.8% RH
|Calibration||Calibrated to ISO/IEC17025 by manufacturer. Traceable by the ‘National Institute of Standards and Technology' and the ‘National Physical Laboratory'.|
Comparison of Formaldemeter 400 & PPM 400ST Performance with various Humidity Conditions.
(mean ± StDev)
All concentrations in ppm.
With the use of formaldehyde in industry and the recent issues raised in public health and indoor air quality typical applications might include:
- Medical Care & Sterilisation
- Paint and Paper manufacture
- Textiles & Dye manufacture
- Particle & Laminate Boards
- Building Management
- Air Conditioning system management
- Environment and Public Health Agencies
For further information…Contact Suzhou Stanford Instruments Ltd. directly:
Suzhou Stanford Instruments Ltd.
4/F, 3 Jinshan Rd,
Suzhou New District 215011,
or contact PPM Technology Ltd. who will pass on your details.
|@||Contact Sales||Product Brochure|