PPM Air Meter | Creating A Safe Environment
The International Agency for Research on Cancer (IARC) reclassified formaldehyde in 2004 as an agent carcinogenic for man (group 1) given sufficient evidence of its relationship with
nasopharyngeal cancer and leukaemia. Following this reclassification, European Regulation No. 605/2014 has established that from April 1, 2015 formaldehyde will be considered a category 1B
carcinogen throughout the European Union, therefore that prevention and control measures for exposure to this substance must be maximized.
Your Safety is our motivation for design and manufacture innovative equipment that allow users to work in a 100% Formaldehyde-Free environment.
With the formaldehyde air meter, we can carry out exhaustive control over all processes performed in laboratories where formaldehyde is handled, ensuring that they are done in a safe way for the users, measuring the formaldehyde particles that exist in the air environment and monitoring through air quality management software.
MODES OF OPPERATION
Continuous mode
Samples are taken as often as possible by the Formaldemeter or Glutaraldemeter.
The sampling duration depends on sample concentration (higher concentration samples will take longer to clear and will delay the next sample). Easy to set up.
Ideal for applications where no controller-based systems are available and the sampling frequency can vary.
Timed mode
It uses an internal timer to trigger samples at a set frequency.
This can be adjusted by the user between 1 and 60 minutes in increments of a single minute. Sampling frequency is not guaranteed as samples may be delayed if the Formaldemeter or Glutaraldemeter is not ready to sample at the designated time.
Trigger mode
Samples are only taken when a valid pulse is detected on the sample input line. If the instrument has not cleared sufficiently to sample at this point, then the sample will be delayed — as soon as the instrument is ready then a sample will be taken. Ideal for use with PLC or other controller-based systems as the sampling rate is controlled by the input lines and the current status is available as logic levels on the output lines.
CALIBRATION
The PPM Formaldemeter will require at least one service per year to ensure proper calibration and functionality. For this process, you will need just one unit of the following:
- Formaldehyde Calibration Standard (7-Month Expiry)
To calibrate the device, simply connect the sample to the aspiration inlet of the PPM Formaldemeter.
INTERFERENTS & FILTERS
The PPM Formaldemeter will require the use of a phenol filter, used to eliminate interference from gasses such as ethanol, formic acid and phenol, phenol filters are available in a packs of 100 and are recommended to be changed every 15 days.
Gas | Required | Response | Elimination of |
Acetaldehyde | 12 | Lineal | 60% |
Ethanol | 24 | Lineal | 45% |
Formic acid | 26 | Lineal | 100% |
Glutaraldehyde | 7 | Lineal | 70% |
Methanol | 60 | Lineal | 30% |
Phenol | 7 | Lineal | 100% |
Resorcinol | 250 | Lineal | 100% |
TECHNICAL CHARACTERISTICS
Ultra-compact portable monitor | Yes |
Supply | 15V DC (Mains adaptor available) |
Input Concentration | 0–10ppm (1ppb resolution) |
Analogue Outputs | 0–2.5v, 0–5v, 0–10v or 4–20Ma |
Analogue Resolution | 16–bits (65536 steps from zero to FSD) |
Alarm Relay | Rated at 0.5A@125VAC/2A@30VDC |
Selectable range | 2.5 ppm, 5 ppm, 10 ppm or 100ppm |
Able to record and extract data in a pen drive | Yes |
Installation | Integration on the grossing station |
FORMALDEHYDE SENSOR
Type | Electrochemical with 2 noble metal electrodes and the appropriate electrolyte |
Resolution | 0.01ppm |
Precision | 2% (for HR between 25-75%) |
Sampling volume | 10 ml |
