F-2000
Page 10
6.4 Model FHXX and FCXX Sensor wiring
RED
Input Supply Voltage (+ 6 to 24 Vdc)
BARE
Signal Output (square wave)
BLACK
Ground (-)
RED
Signal Output (Sine wave)
BLACK
Ground (-)
Model FHXX
Model FCXX
Note: Output type - current sinking type hall effect sensor (13.5mA max).
Pull-up resistor is recommended.
F-2000
Page 11
7.0
HOW TO OPERATE THE F-2000
7.1
Theory of Operation
The MODEL RT is the base unit of the F-2000 flow monitoring system. Fluid flowing through the pipe causes the
paddlewheel to spin. Pulses generated by the spinning paddlewheel are counted and multiplied by scaling factors. The
resulting flow rate amounts and total flow amounts are displayed on the LCD readout. Pressing the enter button located
on the front panel toggles the display between flow rate and total flow or allows entry into the programming mode.
Pressing the clear total button while the total flow value is displayed will return the total to zero (must be activated in the
programming mode - not the factory default setting). A small icon will light at the bottom of the LCD indicating the mode
being displayed.
The MODEL PC includes all of the features of the MODEL RT as well as a relay which can be used to switch external
electrical equipment when user programmed setpoints are reached. The relay must be assigned to respond to either the
rate value for rate alarm applications (rate mode), or to the total value for batching or proportional feed applications (batch
mode). Only one may made be used at any one time. When assigned to the batch mode, the display can be toggled to
show four different values, the rate of flow, total flow, current batch number or current batch total, by pressing the enter
button located on the front panel. A small icon will light at the bottom of the LCD display indicating the mode being
displayed. The model PC is described in a separate instruction manual.
The MODEL AO includes all of the features of the MODEL RT as well as a 4-20mA or 0-10VDC output signal which is
proportional to the flow rate value. This mode is always active although the output value can not be displayed on the LCD.
A small icon will light indicating the mode is active. The model AO is described in a separate instruction manual.
The MODEL AP includes the features of all three F-2000 models, the RT, PC, and AO.
7.2
How To Operate The MODEL RT
7.2.1 What Was The MODEL RT Designed To Do?
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Display the rate of flow up to eight digits.
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Display the total amount of flow up to eight digits.
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Output an open collector signal (NPN) that is proportional to the flow rate.
!
Operates by batteries or plug-in AC transformer.
!
Greater than 1 year battery life.
!
Front panel user programmable.
!
Front panel programming can be disabled for security.
!
Front panel total reset can be disabled for security.
!
Programmable battery saving mode. (Screen blanks after 30seconds)
!
Programmable decimal point locations for both rate and total modes.
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Display can be mounted on the sensor or panel mounted (1/4 DIN). See figure 6 and 8.
!
Display can be rotated on sensor. See figure 6.
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Display can be mounted on a pipe or wall with optional mounting bracket kit. See figure 8 - 11.
!
Display can be panel mounted up to 250 ft. from sensor when used with AC coil sensor.
!
Display can be panel mounted up to 1 mile from sensor when used with Hall Effect sensor.
!
Optional circuitry, AO (analog output) and PC (process control) boards, can be field installed at a later time.
