Input Sensor Wiring
The Series 3100 flow monitor is a Dual Channel unit . Either a single input, or any combination of two pulse or analog inputs
can be used . The pulse inputs are extremely versatile, designed to accept either two-wire (Data Industrial 200 Series), three-
wire pulse inputs (4000 Series) or zero-crossing sine wave inputs (turbines with a magnetic coil pickup) .
The analog inputs can accept 0…20 mA, 4…20 mA, 0…1V DC, 0…5V DC or 0…10V DC . Both the top and bottom ends of the
analog range can be configured in the field so that most inputs can be accepted if the hardware limitations are not exceeded .
Contact the factory for assistance with custom inputs . Although different rear panel terminals are used, all parameters are set
with the LCD/keypad interface . No internal or external jumpers, switches or potentiometers require movement or adjustment .
Pulse Inputs (Solid-State Switch or Sine Wave)
The Series 3100 flow monitor accommodates four types of pulse inputs:
• Pulse-DI: Used for all Data Industrial Flow Sensors . Provides an internal pullup resistor and uses “K” and “Offset” values
for calibration .
• Pulse –K Factor: Accepts non Zero Crossing inputs but provides no internal pullup, classical “K” (pulses/gal) values
for calibration .
• Pullup K Factor: Provides an internal pullup resistor and uses classical “K” ( pulses/gal) values for calibration .
• Sine-K Factor: Accepts zero crossing low voltage sourcing devices, with classical “K” ( pulses/gal) calibration .
Channel #1
Two Wire Flow Sensor
Sensor (+)
Sensor (-)
Shield
Shield
Sensor (+)
Sensor (-)
Channel #2
Two Wire Flow Sensor
Analog 1 IN (+) 1
Analog 1 IN (-) 2
Shield 3
Analog 2 IN (+) 4
Analog 2 IN (-) 5
Shield 6
Pulse 1 IN (+) 7
Pulse1 IN (-) 8
Shield 9
Pulse 2 IN (+) 10
Pulse 2 IN (-) 11
Sensor Power 12
Sensor Input Card
Green Label
12 Pin Connector
200 Series Flow Sensors
Red = Sensor (+)
Black = Sensor (-)
SDI Series Sensors
Varies with Model
Refer to SDI User Manual
Other Sensors
Contact Technical Support as needed
Figure 4: Wiring a two-wire pulse flow sensor
4000 Series Flow Sensors
Red = Sensor Power
White = Sensor (+)
Black = Sensor (-)
SDI Series Sensors
Varies with Model
Refer to SDI User Manual
Other Sensors
Contact Technical Support as needed
Channel #1
Three Wire Flow Sensor
Sensor Power
Sensor (+)
Sensor (-)
Shield
Shield
Sensor (+)
Sensor (-)
Channel #2
Three Wire Flow Sensor
Sensor Power
Analog 1 IN (+) 1
Analog 1 IN (-) 2
Shield 3
Analog 2 IN (+) 4
Analog 2 IN (-) 5
Shield 6
Pulse 1 IN (+) 7
Pulse1 IN (-) 8
Shield 9
Pulse 2 IN (+) 10
Pulse 2 IN (-) 11
Sensor Power 12
Sensor Input Card
Green Label
12 Pin Connector
Figure 5: Wiring a three-wire pulse sensor
Installation
Page 8
October 2017
CTL-UM-01026-EN-05
