User manual

EXTECH INSTRUMENTS
8 FM200-en-GB_V1.8 3/17
Specifications
HCHO Measurement Range 0.00 to 5.00ppm
HCHO Accuracy ±25% of reading +0.03ppm (baseline drift)
Accuracy Note: Accuracy meets NIOSH acceptance criterion within
±25% of the true value at 95% confidence level
HCHO Resolution 0.01 ppm
Temp. Measurement range 0°C to 50°C (32°F to 122°F)
Temperature Resolution 0.1°C (0.1°F)
Relative Humidity Range 10 to 90% RH
RH Resolution 0.1% RH
Temperature Accuracy ±1.0°C (2.0°F)
Relative Humidity Accuracy: ±5% (20 to 80%RH) otherwise the accuracy is ±7%
Power AAA batteries x 6 pcs or AC/DC adaptor (supplied)
Meter Dimensions 160 x 60 x 40 mm (6.3 x 2.4 x 1.6 in.)
LCD Dimensions 42 x 33.5mm (1.65 x 1.32 in.)
Weight 181.4 g (6.4 oz.)
Sensor Cross Sensitivity table
Substance
Cross Sensitivity (%)
CO
1
H2S
No Data
H2
0.1
SO2
12
NO2
No Data
NO
No Data
CL2
-3
C2H4
No Data
NH3
0.0
CO2
0.0
Ethanol, methanol
50
Phenol
7
Water Vapor
0.0*
*NB: Within specified range. Step changes in %RH produce short term
transient response
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