Sper Scientific
840034
Psychrometer / Anemometer
This unique instrument combines the features of an anemometer and a psychrometer.
Measures air speed, air volume, BTU (British Thermal Units), air temperature, dew point, wet bulb and humidity. Excellent for HVAC, IAQ and environmental work. Auto ranging with air velocity in m/s or ft/s, air volume in CFM or m3/sec and temperature in °C or °F. Features min/max/avg, hold, auto power off, LCD backlight and a computer interface. The probe detaches for easy replacement and repair.
In order to connect this model to a computer to stream data, you will need the USB Cable 840054 and Data Acquisition Software 840052. Comes in a hard carrying case complete with a probe, tripod mounting screw and 4 AAA batteries. Uses optional AC Adapter (840027).
- Air Speed
- Air Volume
- BTU (British Thermal Units)
- Air Temperature
- Dew Point
- Wet Bulb
- Humidity
Meter Dimensions: 7" × 3" × 1½" (178 × 76 × 38 mm)
Sensor Head Diameter: 3" (76 mm)
Weight: 10 oz (283 g)
| Range | Resolution | Accuracy | |
| Air Volume m³/sec | 0 to 99999 | 0.1 (0 to 99.99) 1 (1000 to 9999) |
±2%rdg +0.2 m/s |
| Air Volume CFM (ft³/min) | |||
| Airspeed m/s | 0.3 to 35 | 0.1 | |
| Airspeed ft/s | 1 to 114 | ||
| Air Temperature ºC | -20 to 60º | ±0.6ºC | |
| Air Temperature ºF | -4 to 140º | ±1ºF | |
| RH | 0 to 100% | ±3% @ 10 to 90% RH (cal temp.), otherwise ±5% | |
| Dew Point ºC | -68 to 70º | ||
| Dew Point ºF | -90 to 158º | ||
| Wet Bulb ºC | -22 to 70º | ||
| Wet Bulb ºF | -7.6 to 158º | ||
| Capacity BTU/H | 0 to 99999 kw | 0.1 (0 to 99.9) 1 (1000 to 99999) |
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