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Glutaraldemeter™ 3

 

 

The Glutaraldemeter 3 is an easy-to-use, portable instrument that employs an electrochemical sensor to indicate levels of glutaraldehyde vapor in air. The instrument provides a rapid direct read-out of vapor levels on an LCD display, making it a useful screening tool to complement existing routine chemical glutaraldehyde monitoring techniques.

Although it uses the same sensor and sampling technology as its predecessor it has several advantages over it thanks to recently improved firmware:

  • Much more user friendly and easy to use
  • Auto zero function to prevent sensor creep
  • Peak hold function and time-to-peak analysis
  • Ten reading memory
  • Automated calibration procedure

By using the time-to-peak function the user can ''spot'' false readings and improve the selectivity of the instrument. This is because common chemicals such as ethanol, propanol and butanol have a time-to-peak on the sensor which is much quicker than that of glutaraldehyde.

 

Instrument

 

Sensor Electrochemical
Calibration In-field calibration standard
Display 4 digit LCD
Sampling Frequency 0 - 3 minutes depending on previous reading
Sample volume Approx 10 ml
Detection Range 0 - 10 ppm (other ranges available on request)
Precision 10% at 2 ppm level
Response Time Approximately 60 seconds from sampling
Power 9V PP3 alkaline battery
Enclosure ABS plastic
Weight 270g Instrument / 750g Complete Kit
Dimensions 150 x 80 x 34 mm Instrument / 266 x 230 x 50 mm Complete Kit

 

Kit Contents

 

  • Glutaraldemeter 3 instrument with battery
  • Glutaraldehyde calibration standard tube
  • Pack of phenol filters (10)
  • Thermometer
  • Ball point pen
  • Operation manual
 

 

Accessories

 

 

  • Calibration Standard: PPM supplies an easy-to-use glutaraldehyde calibration standard tube for checking and adjusting the calibration of the Glutaraldemeter 3. The tube produces a known concentration of glutaraldehyde vapour that can be sampled by the instrument to check accuracy and performance. The standard has a 100-sample capacity or a useful life of six months (whichever occurs sooner).
  • Phenol Filters: Complete removal of contaminants such as phenol and resorcinol can be achieved by attaching PPM Phenol Filters to the sampling port of the instrument.
  • PPM AMS-2 Aldehyde Monitoring Station: The PPM AMS-2 enables the Glutaraldemeter 3 to be used as a data logging semi-continuous glutaraldehyde area monitor. The AMS-2 is a compact bench top unit that connects to the hand held instrument and essentially automates the operation of the Glutaraldemeter 3.

 

Extract from the summary of independent validation by Inversek Research International Ltd. of the PPM Glutaraldemeter:

Meter Readings: Glutaraldehyde stream, concentration determined to be 0.100ppm by amended MBTH method

Meter 1 2 3 4 5 6 Mean Coeff. of var.
01 0.11 0.12 0.11 0.10 0.11 0.12 0.11 6.7
05 0.10 0.10 0.10 0.11 0.12 0.12 0.11 9.1
09 0.12 0.13 0.12 0.12 0.12 0.13 0.12 4.21

All concentrations in ppm.

 

Calibration Standards: Calibration performance

Meter 1 2 3 4 5 6 Coeff. of var.
01 0.54 0.51 0.48 0.51 0.45 0.50 6.9
05 0.59 0.57 0.54 0.60 0.52 0.56 6.0
09 0.56 0.54 0.50 0.60 0.55 0.55 6.6
All concentrations in ppm.

"...the PPM Glutaraldemeters were found to be light, compact and easy to use. Individual measurements using the meters were undertaken in less that one minute, and at a level of ca. 0.1ppm glutaraldehyde (determined using the amended MBTH method) mean readings of 0.11, 0.10 and 0.12 glutaraldehyde were obtained from 3 individual meters showing good agreement with the chemically measured concentration..."

 

Advantages: Uses:
  • Easy to use - minimal operator training required
  • Rapid response time
  • Real time readings allow immediate response to results
  • Reliable electrochemical sensor
  • Does not require inconvenient ancillary sampling equipment or readers
  • Simple in-field calibration
  • Connectivity to AMS-2 or PC for continuous monitoring
  • Medicine
  • Dentistry
  • Pharmaceutical
  • Vetinary Medicine
  • Paper manufacture
  • Leather & Textile treatment
  • X-Ray processing
  • Microbiology
  • Histopathology
  • Endoscopy

 

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