TM-741/TM-740 1. DESCRIPTION The meter measures air speed and temperature. It is ideal for spot measurements. at air outlets on account of its 30mm vane. In addition to air speed and temperature. 2. SAFETY PRECAUTION CAUTION Be extremely careful for the following conditions while measuring.
TM-741/TM-740 3. FEATURES 30mm 6 plastics vane. Light air response 0.4m/s. Max/Min/Avg and data hold. Auto power off with disable function. 4. SPECIFICATIONS General Specifications Display : Dual LCD display. The maximum value on the primary display is 9999. The maximum value on secondary display is 999.
TM-741/TM-740 6. AIR VELOCITY MEASURES Fallow the arrows to measure velocity. As shown in figures. WARNING Please don’t touch the vanes by fingers or foreign body to avoid damage to the vanes.
TM-741/TM-740 7. OPERATION 7.1 Velocity Unit Button: Select the m/s Knots(kts) ft/min(fpm) Km/hr(kph) mph. 7.2 CAL / ℃/ ℉ Button: Calibration of 10 m/s Prepare the 10m/s velocity. Press CAL button and POWER button more than 2 second the LCD will display CAL.
TM-741/TM-740 7.5 Data Hold button: Freezes the reading present on the LCD screen at the moment the button is pressed. 7.6 Power Button: Press the ” ” button more than 2 second to power on the meter. 7.7 Auto Power:...
TM-741/TM-740 8. INSTRUMENT DESCRIPTION Vane. Display (LCD). Velocity unit select button. Calibration and ℃/℉ button. Data hold button. Maximun/Average/minimum button. Power Button : ON/OFF.
TM-741/TM-740 9. BATTERY REPLACEMENT WARNING If the symbol ” ” appears on the LCD, please replace the battery immediately. 1. Remove the battery cover. 2. Replace the battery. 3. Install the battery cover. END OF LIFE Caution : this symbol indicates that...
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