Fuel Meter Digital Fuel Meter Water Meter Mini Digital Turbine Flowmeter Fuel Meter 15-120L/min 1" NPT

Specification:
Thread size: 1inch NPT female
Material: Plastic
Color: Blue
Repetition: ±0.5%
Measure accuracy: ±1%
Maximum working pressure: 20BAR
Flow range: 15-120L / Min
Single count: 0.00-9999.9
Total cumulative count: 0-99999
Error coefficient: 0.1000-9.9999
Unit: L / GAL / PTS / QTS
Working temperature: -10°C ~ +60°C(14°F~140°F)
Operating voltage: 2.3-3.3V
Application: Diesel, urea, kerosene, gasoline
Battery type: 2 x AAA LRO3 batteries
Weight: 270g / 9.5oz (approx.)

Malfunction and solution:
The flow meter is not accurate. 1. The method of field calibration is not correct.   Calibrate again. 2. The flow rate on the meter is below the lowest.  Increase the flow rate. 3. The flow meter is blocked by the dry liquid. Take out the impeller and clean it carefully and make sure the impeller turns freely. 4. The impeller is wrapped by the sealing material.  Remove the meter and make sure the impeller turns freely. 5. Too close to the impeller.   Install properly. 6. Too close to the motor or electronic noise environment   Install properly. The reading numbers faded or blanked out. 1.Battery is exhausted or not connected Check the batteries or even replace them. Flow rate is normal but the meter can not count. Press the button of DISPLAY, the meter starts. 1. Field calibration is not correct. Calibrate again. 2. The impeller is blocked or damaged.    Remove the meter and make sure the impeller turns freely. 3.The impeller is wrapped by the sealing material.   Remove the meter and make sure the impeller turns freely. Flow rate is low and the meter can not count. Press the button of DISPLAY, the meter starts.