CH2O

Applications

  • Paper and wood industry
  • Textile
  • Productions of resins and adhesives
  • Chemical industry
Formaldehyde
Formaldehyde

Description

Colorimetric analyzer for the determination of formaldehyde

Method

An excess of MTBH (3-methyl-2-benzothiazoline hydrazone) is added to the sample. The reaction between the compound and formaldehyde leads to the formation of an azine. The subsequent addition of the developing solution oxidizes the excess MTBH, the resulting compound reacts with the azine to form a coniugate system which absorb in the red region of the spectrum. The absorbance is proportional to the formaldehyde concentration and it is measured at 660 nm.

Reagents

Features

Range
(Ø 16 mm)
2 ppm
Wavelength 660 nm
Number of reagents 2
Min. analysis time 15 minutes

Technical Specifications

Model CL
Sampling Mode Batch, with freely settable frequency.
Sample Pressure: Atmospheric
Temperature: 5 ‐ 45°C (41 ‐ 113°F)
Flow Rate: 80 to 500 mL/min
Connection: 6 mm (¼-in.)
Drain Pressure-free drain
Connection: 12 mm (½-in.)
Input Streams 2
Cabinet Material Epoxy-coated stainless steel AISI 304
Dimensions (H x W x D) 604 x 380 x 210 mm (23.6 x 14.8 x 8.2 in)
Weight 20 kg (44 lbs)
Power Supply Input Voltage: 115 VAC,230 VAC,24 VDC
Power consumption: max. 80 W
Output signals 2 x 4-20 mA analog outputs
Modbus via RS485,Ethernet
Alarms SPDT programmable voltage-free relays
Digital Input None,Online,Start Extra,Skip Idle,Emergency Stop
Ambient Temperature 5 - 45 °C (41 - 113 °F)
Ambient Humidity 10 - 90 % RH
Protection Grade IP54

Documentation

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