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By certification 
Handhold ultrasonic flowmeter(handable ultrasonic flow meter, portable ultrasonic flowmeter)
Functions and characteristics:
1) Non-wetted surface meter is used in measure uneasy touch and observe flow And big pipe
2) Don't change the flow state and bring additive resistance, the meter installation and examine and repair would not impact production. The meter is a perfect save resource type flowmeter
3) The price is low
4) The measured hardly impact the veracity medium
Features:
1) Accuracy: +/-2%Fs (full range)
2) Output of direct current signal: 4 - 20mA, impedance not more than 600 ohm
3) Medium temperature: -20 ~ +150
4) Pulse output accumulative flow: Light isolation, collector, emitter open circuit passive output, pulse width 2ms
5) Serial communication: RS485 or RS232 (opt)
6) State of fluid: Full-pipe: Axis symmetry
7) Power: 220V+/-10% AC 50Hz
8) Printer: (Opt. ) TpP-16 mini-printer
9) Environment temperature: -10 ~ +45
10) Environment humidity: Relative humidity not more than 85%
11) Weight: Stationary type 9kg, portable type 5kg
12) Velocity of flow: 0.1 - 12m/s
Functions and characteristics:
1) Non-wetted surface meter is used in measure uneasy touch and observe flow And big pipe
2) Don't change the flow state and bring additive resistance, the meter installation and examine and repair would not impact production. The meter is a perfect save resource type flowmeter
3) The price is low
4) The measured hardly impact the veracity medium
Features:
1) Accuracy: +/-2%Fs (full range)
2) Output of direct current signal: 4 - 20mA, impedance not more than 600 ohm
3) Medium temperature: -20 ~ +150
4) Pulse output accumulative flow: Light isolation, collector, emitter open circuit passive output, pulse width 2ms
5) Serial communication: RS485 or RS232 (opt)
6) State of fluid: Full-pipe: Axis symmetry
7) Power: 220V+/-10% AC 50Hz
8) Printer: (Opt. ) TpP-16 mini-printer
9) Environment temperature: -10 ~ +45
10) Environment humidity: Relative humidity not more than 85%
11) Weight: Stationary type 9kg, portable type 5kg
12) Velocity of flow: 0.1 - 12m/s
