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Model 435-1

model 435-1, multi-functional meas. instr., for A/C, ventilation and Indoor Air Quality, with battery and calibration protocol

The measuring instrument for ambient air conditions, for assessing Indoor Air Quality and adjusting and inspecting VAC systems. 435-1 is an affordable introduction to measurement engineering for ambient air conditions. The new IAQ probe measures Indoor Air Quality by measuring CO2 level, air moisture and air temperature. Temperature and humidity measurement is integrated in the new thermal probe. In addition, it is also possible to connect additional temperature probes. Readings from up to 3 temperature probes can be displayed in the clearly laid-out measuring instrument display; data transmission is radio-controlled, therefore wireless. Measurement data is printed on site on the printer.
IAQ probe for assessment of Indoor Air Quality
Vane measurement and thermal probes
Radio probe for temperature
Printer for documentation
Protection class IP54

Technical

Storage temperature ………… -30 to +70 °C
Operating temperature
………… -20 to +50 °C
Battery type
………… Alkali manganese, mignon, Type AA
Battery life
………… 200 h (typical vane measurement)
Weight
………… 428 g
Dimensions
………… 220 x 74 x 46 mm
Material/Housing
………… ABS/TPE/Metal
Temperature probe type: Type T (Cu-CuNi)
Meas. range
………… -200 to +400 °C
Accuracy
………… ±0.3 °C (-60 to +60 °C)

………… ±(0.2 °C +0.3% of mv) (remaining range)
Resolution
………… 0.1 °C
Temperature Probe type: NTC
Meas. range
………… -50 to +150 °C
Accuracy
………… ±0.2 °C(-25 to +74.9 °C)

………… ±0.4 °C (-50 to -25.1 °C)

………… ±0.4 °C (+75 to +99.9 °C)
………… ±0.5% of mv (remaining range)
Resolution

………… 0.1 °C
Temperature probe type: Type K
Meas. Range ………… -200 to +1370 °C
Accuracy ………… ±0.3 °C (-60 to +60 °C)

………… ±(0.2 °C +0.3% of mv) (remaining range)
Resolution
………… 0.1 °C
CO2 Probe
Meas. Range
………… 0 to +10000 ppm CO2
Resolution
………… 1 ppm CO2
Pressure Probe type: Absolute pressure probe
Meas. Range
………… 0 to +2000 hPa
Resolution ………… 0.1 hPa
Humidity Probe type: Capacitive humid. sensor
Meas. Range ………… 0 to +100 %RH
Resolution ………… 0.1 %RH
Velocity Probe type: Hot Wire
Meas. Range ………… 0 to +20 m/s
Resolution ………… 0.01 m/s
Velocity Probe type: Vane
Meas. Range ………… 0 to +60 m/s
Resolution ………… 0.01m/s (60 vane)

………… 0.1 m/s (16 vane)

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