HR-LCD 4-20 scaled/unscaled
Specifications HR-LCD 4-20 scaled/unscaled
Register Type
Permanently sealed, electronic LCD register with scaled/unscaled and analog output, as well as a field-programmable option
Register Display
Status indicators, unit of measure, billing units, automatic toggle between 9-digit consumption, rate of flow, meter model
Unit of Measure
U .S . gallons, Imperial gallons, cubic feet, cubic meters, and liters
Flow Rate
Seconds, minutes, and hours
Numerals
7 mm (0 .28 in .) high
Weight
11 ounces
Humidity
0…100% condensing
Temperature
Storage: – 40…140° F (– 40…60° C)
Max . ambient for 1 hr: 150° F (66° C)
Electronics & Display: 14…140° F (–10…60° C)
Status Indicators
Visual icons for: meter functioning correctly, meter alarm (indicates temperature limits exceeded, magnetic tamper or register
removal), reverse flow, suspected leak, 30-day no usage, end of battery life
Scaled/Unscaled
Output
Solid-state relay
Max . Voltage
30V DC
Current
100 mA
Pulse Width
50 ms (programmable 30…100 ms)
Analog Output
Two-wire/passive
Input Voltage Range
9…50V DC supply
Current
4…20 mA
Max . Load Resistance
(Ohms)
50 Ohms + 50 Ohms (supply voltage - 9V)
Battery
Lithium thionyl chloride AA cell, fully encapsulated within register housing
Battery Life
10 years based on default settings and typical operating range
Scaled Output
• Scaled output is a switch closure output defined as:
red
wire = positive,
black
wire = negative .
• Scaled digital output from the register has a default resolution of 1/10th of the register test circle (resolution may vary in
some cases) .
• The movement of the meter magnet is converted to a square wave signal that is available as a scaled output through a
solid-state relay .
• Scaled output is a solid-state relay to provide isolation from the 4-20 mA output .
• The nominal pulse output width is programmable from 30…100 msec .
• The resolution of the output is defined in the registration section .
• This digital pulse output is compatible with most totalizers and batch controllers .
Unscaled Output
• Unscaled output is a switch closure output defined as:
green
wire = positive,
black
wire = negative
• The movement of the meter magnet is converted to a square wave signal that is available as an unscaled output through a
solid-state relay .
• Unscaled output is a solid state relay to provide isolation from the 4-20 mA output .
• The resolution of the output is defined in the registration section .
• The unscaled output will only be active when the device is powered by the 4-20 mA output .
• This digital pulse output is compatible with most totalizers and batch controllers .
Analog Output
• The input pulses generated within the transmitter assembly are converted to a standard 4-20 mA control signal .
• This signal is proportional to the flow of fluid passing through the flow meter .
• Power for the device can be obtained from a 9…50V DC control loop .
• The default 20mA setting of the signal is defined in the registration section .
Page 9
April 2020
REG-UM-02466-EN-02
