Detailed Product Description
digital flow indicator( total flow indicator; flow indicator )
Digital flow indicato
INPUT SIGNALS
Analog input: Resistance PT100
Voltage 05V,15V or mV
Current 010mA,420mA or 020mA
ThermocoupleK,E
Pulse input: Waverectangular, sine or triangle wave..
Amplitudemore than 4V(or specified by user)
Range05KHz
Switch input: Start, stop, reset
Anplitudeinput isolated by photoelectricity more than 4V
(or specified by user)
OUTPUT SIGNALS
Analog input:010mA(≤750Ω) 420Ma(≤500Ω)
05 V(≤250Ω) 15 V(≤250Ω)
Switch input: Relay controlling output (AC220V/3A,DC24V/5A,resistance load)
SCR(silicon controlled)output 400V/0.5A.
SCR(solid relay)output 69V/50mA
Feed output: DC24V/30mA
Communicating: bi-wiring, trio-wiring or quad-wiring systems, baud rate is changeable.
PRECISION
Display precision for measuring:0.2%FS±1 digit or 5%FS±1 digit
Transforming precision for frequency:±1pulse (LMS),better than 0.2%
DISPLAY METHOD
09999 display transient flow measured value
09999999999 display accumulated flow value
19999999 display measured value of temperature compensation
19999999 display measured value of pressure compensation
19999999 display measured value of flow(differential pressure of frequency)
display current time
display working state of luminescent tube(high-light LED digital display or LED Chinese digital display with backlight)
CONTROLLING METHOD ON/OFF with back-difference
PRINT CONTROLLING Directly connect with various types of serial micro-printer.
Communicating method is RS-232.
PRINT PRECISION The same as the measuring precision of instrument.
ALARMING METHOD
Can select the alarm output of relay high limit and low limit with LED indicating alarm.
QUANTITATIVE CONTROLLING METHOD
Can select relay controlling with LED indicating output when the getting the set flow value.
Can select relay controlling quantitative flow process with LED indicating output.
ALARM PRECISION ±1digit.
COMMUNICATING METHOD
Bi-directional serial communicating, such as RS-422,RS-485 and so on.
The baud rate(3009600bps)can be arbitrarily set by setting internal parameter.
The system adopts principal and subordinate communicating method as to realize communicating of multi GZ instruments with microcomputers..
SETTING METHOD
Faceplate key touching setting digits.Keep set values permanently if power is broken.
Lock set parameters by password
PROTECTING METHOD
Auto reset by programming if the voltage is too low.
Auto reset by programming if the operation is abnormal (Watch Dog)
Since power is broken keep the accumulated flow value for more than two years and keep set parameters permanently.
USING ENVIRONMENT
Ambient temperature:050
Relative humidity:≤85%RH
Power supply: AC 220V+10-15%(50Hz±2Hz)
AC 90260Vswitch power
DC 24V±2Vswitch power
Get rid of strong corrosive gas
POWER CONSUMPTION:
·≤ 5W(AC 220V power supply)
·≤ 4W(AC 90260V switch power supply)
·≤ 4W(DC 24V power supply)
STRUCTURE Standard Inserting Type
WEIGHT 500g(AC 220V power supply).
300g(Switching power supply)....
