This operation manual explains how to install, power on, and use the Integral 8903/8904/8906 Vane Anemometer. It covers single‑point and multi‑point air‑velocity measurements, continuous moving average, MIN/MAX/AVG functions, and how to switch between imperial and metric units.
The guide also details the RS232 communication settings, connection procedures, battery life, warranty information, and return authorization process. Safety cautions and unit specifications are included to help technicians and HVAC technicians obtain accurate airflow data.
| Accuracy | 2% of reading +0.2 m/s |
|---|---|
| Airflow Range | 80‑5900 ft/min |
| Temperature Range | -10°C to 50°C |
| Battery Life | 100 Hours |
| Display Type | LCD |
| Display Size | 37 mm × 42 mm |
| Dimensions | 183 mm × 76 mm × 45 mm |
| Fan Diameter | 70 mm |
| Auto Power‑Off | Approx. 20 minutes |
| RS232 Output Format | TXXX.XF, VXXXXF (velocity) / TXXX.XC, VXXXXM (temperature) |
Turn the unit off, then press ON and HOLD together, release ON; an "n" appears on the LCD indicating non‑sleep mode is active.
The meter outputs data as "TXXX.XF, VXXXXF" for velocity and "TXXX.XC, VXXXXM" for temperature.
The battery provides up to 100 hours of operation.