【Cov qauv siv tau】
JJG 162-2019 Cov Dej Txias Dej Meters;
JJG 164-2000 Standard Facilities rau Liquid Flowrate;
JJG 198-1994 Velocity Flowmeter;
JJG 257-2007 Float Meter;
JJG 640-2016 Differential Pressure Flowmeters;
JJG 667-2010 Liquid Positive Displacement Flowmeter;
JJG 1029-2007 Vortex-shedding Flowmeter;
JJG 1030-2007 Ultrasonic Flowmeters;
JJG 1033-2007 Electromagnetic Flowmeters;
JJG 1037-2008 Turbine Flowmeter;
JJG 1038-2008 Goriolis Mass Flow Meters;
【Technical Parameters】
Test nruab nrab: dej distilled;
Test method: Flow ntsuas qhov tseeb: Qib 0.15;
Kev ntsuas qhov ntsuas: 10-150m3/h;
Tested flowmeter raug: Ntau dua lossis sib npaug rau Qib 0.2;
Pulse input signal: 2 channel;
Voltage pulse input signal: Ua haujlwm zaus: f{{0}}Hz; Tested flowmeter teeb liab waveform: Sine yoj thiab square yoj; Lub teeb liab amplitude: Siab kawg Ntau dua lossis sib npaug rau 8V, qis kawg Tsawg dua lossis sib npaug rau 0.8V; Input signal impedance: Tsawg dua lossis sib npaug ntawm 500 Ω;
Tam sim no pulse input signal: Ua haujlwm zaus: f=10-3000Hz; Tested flowmeter teeb liab waveform: Sine yoj thiab square yoj; Lub teeb liab amplitude: Tsawg-kawg Tsawg dua lossis sib npaug rau 6mA, high-end Ntau dua lossis sib npaug rau 10mA; Input signal impedance: Tsawg dua lossis sib npaug ntawm 500 Ω;
Pulse tso zis teeb liab: 2 channel;
Tam sim no pulse tso zis teeb liab: zaus: 10Hz-3000Hz; Zaus tam sim no amplitude: Tsawg kawg Tsawg dua los yog sib npaug rau 6mA, high-end Ntau dua lossis sib npaug rau 10mA; Cov zis impedance: 100 Ω;
Voltage pulse output signal: Zaus: 1Hz-3000Hz; Zaus voltage amplitude: High kawg Vp Ntau dua lossis sib npaug rau 8V, qis kawg Vp Tsawg dua lossis sib npaug rau 0.8V; Cov zis impedance: 8.5 Ω;
Peb Cov Neeg Koom Tes
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