TESTO 325M - Technical Data; Measuring Ranges and Accuracies

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10. Technical data
10.1 Measuring ranges and accuracies
testo 325 M
Measurement type Meas. range Accuracy Resolution Adapt. time 90%
Temperature
1
-40 to + 600°C <100°C ±0,5°C 0.1°C Depending on
>100°C ± 0.5% of reading probe used
Efficiency 0 to 120% - 0.1% -
Oxygen 0 to 21% ±0.2% 0.1% Approx. 30s
Carbon dioxide 0 to CO
2max
- 0.1% Approx. 40s
Carbon monoxide
2
0 to 4000ppm < 400ppm ±20ppm 1ppm Typically 60s
400 to 1000ppm ±5% of reading
>1000ppm ± 10% of reading
Pressure (Delta P1)
3
0 to 40hPa <3hPa ±0.03hPa 0.01hPa -
>3hPa ±1.5% of reading
Pressure (Delta P2)
3
0 to 200hPa <50hPa ±0.5hPa 0.1hPa -
>50hPa ± 1.5% of reading
testo 325 XL
Measurement type Meas. range Accuracy Resolution Adapt. time 90%
Temperature
1
-40 to + 1000°C <100°C ±0.5°C 0.1°C Depending on
>100°C ± 0.5% of reading probe used
Efficiency 0 to 120% - 0.1% -
Oxygen 0 to 21% ±0.2% 0.1% Approx. 30s
Carbon dioxide 0 to CO
2max
- 0.1% Approx. 40s
Carbon monoxide 0 to 4000ppm < 400ppm ± 20ppm 1ppm Typically 40s
400 to 2000ppm ± 5% of read.
>2000ppm ± 10% of reading
Pressure (dP1)
3
0 to 40hPa <3hPa ±0.03hPa 0.01hPa -
>3hPa ±1.5% of reading
Pressure (dP2)
3
0 to 200hPa <50hPa ±0.5hPa 0.1hPa -
>50hPa ± 1.5% of reading
1
Sensor: Thermocouple Type K (NiCr-Ni) to DIN IEC 584 Part 2, Class 1
2
Accuracy data apply to H
2
level < 10%
3
Max. overload: 1000hPa