|
A;Flow measurement function; The instantaneous flow measurement, cumulative flow, velocity and at the same time .
B; tracking; In fluid flow zero, tracking, automatic zero adjustment
C;Cut off the flow of small function; Before moving flows can be set value, or resection of the small flow mutation interference suppression
D;Pros flow indicator; Forward flow, the flow of instructions for the "+" reverse flow, the instructions "-."
E;Damping function;0-99 seconds of the time set damping, the average of the instantaneous flow measurement.
F;ATC alarm function; When the ATC pipeline, the police are given instructions, the cumulative stop.
G;Upper and Lower alarm function; The instantaneous flow can be set upper and lower limits,when flow overruns, the police are given instructions and alarm signal output.
H;Signal output function; 4-20mA output, output value and should be relatively instantaneous flow, the corresponding range adjustable.
I;Calibration function; Instrument calibration sub can further enhance the linear meters, expanding the scope of measurement, the measurement accuracy.
J;Set password function; Passwords can be set to prevent arbitrary operation.
K;Environmental conditions; Temperature: -10 ¡ã C -60 ¡ã C relative humidity of 5% -90%
L;Working conditions;
Somatotype: 70 ¡ã C
Separated :Poly PTFE lining --- 120 ¡ã C, poly chloroprene rubber lining ---80 ¡æ,
polyurethane lining --80 ¡æ, polypropylene liner --- 120 ¡æ.
Fluid conductivity: not less than 5us/cm
M;frame; Flange type: 4.0Mpa (DN10 - DN150) 1.6Mpa (DN10-converter )
Facing folder: 4.0Mpa (DN10 - DN150) 1.6Mpa (DN10-converter)
N;Power; Single-phase AC 85V - 265V, 45Hz - 450Hz ,18V - 36V DC
Technical parameters
The implementation of standards; JB/T9248-1999 electromagnetic flowmeter
Basic parameters and performance indicators
---- Nominal diameter: 10,15,20,25,32,40,50,65,80,100,125,150,200,250,300,350,400,450, 500,600,700,800 , 900,1000 ---- Corresponding velocity of the flow range: 0-1.5 m / s to 0-12 m / s
---- Accuracy: ¡À 0.5% (indication)
--- Measurement of materials: stainless steel 1Cr18Ni9Ti
---- Lining materials: Teflon, polyethylene chloroprene rubber, polyurethane, polypropylene
---- Electrode materials: stainless steel 0Cr18Ni12Mo2Ti, Harrington alloy B, C Harrington alloys, titanium, platinum according alloy, stainless steel coated tungsten carbide.
---- Flange materials: carbon steel, stainless steel.
---- Protective shell: IP65/68
---- Explosion levels: Exia II Skilling
---- SPLIT Sensor and converter spacing ¡Ü 100M
---- Power loss: <20W
---- Time constant-99 seconds:
---- Resection of the small signal:-49%
---- Input impedance: 1015 Ohm, a simulation system than 110db, the school system can automatically spot "0"
---- Luxury-20mA current output ¡À 0.01mA
-- Load-750 ohm resistor:
---- Frequency output: maximum output frequency or optional 1KHz kHz, with the photoelectric isolation transistor collector on the next 20K ohm resistor output, high-output voltage: nationally RL = 24V x / (RL +20 K ohms), VL = 0V, error <1Hz , the external power supply is not greater than 35V, or internal segregation +24 V power supply.
---- Pulse output: the accumulated output of pulses, with photoelectric isolation transistors open collector output, an external power supply is not greater than 35V,or internal segregation +24 V power supply, high-voltage output ibid., nationally VL Ibid.
---- Threshold of total output: 0.001 million cubic meters -1000 cubic meters can be located.
---- Output level: nationally VL = +5 V = 0V
---- Serial output: standard RS485 serial interface
-- Anti-jamming: electromagnetic compatibility and anti-jamming performance is better than the international standard 3
---- Electrical isolation: analog input and analog output voltage Insulation> 500V, analog input and AC power Insulation> 1500V, and the analog output voltage insulation between the earth> 500V, and the analog output AC power Insulation> 1500V, pulse output voltage and earth Insulation > 500V, pulse output and AC power Insulation> 1500V. | 
