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RCM Digital Flow Meter

Digital Flow Meter

  • Digital Display Rate & Total – Option RW3
  • Remote Digital Display Rate & Total – Option RD-1
RCM Digital Display
RCM Digital Display

The RCM Digital flow meter display is a 2 wire loop powered 4-20mA DC transmitter features 7 digits for flow rate and 11 digits for accumulated total. On-screen engineering units are easily configured, while different units for flow rate and total can be displayed simultaneously. A wide selection of options further enhances this models capability. Optional back-lighting is available for easy viewing.

Wet/wet differential pressure sensor is protected by an isolated stainless steel diaphragm for measuring liquids, gases and conductive flow media.

The digital display can be connected as a remote display (option DR-1) to our 4-wire transmitter output option W (4-20mA linear output signal), 2-wire loop powered transmitter option W2 or W3 (4-20mA loop powered signal) output is proportional to flow rate squared or our 2-wire loop powered transmitter option RW3 which is self-contained and complete.

RCM Industries has been manufacturing quality flow measuring products for over 35 years for end-users and OEM applications.

Standard Features:

  • 15 Point Linearization of Flow Curve
  • Displays Instantaneous Flow Rate, Total & Accumulated Total
  • Large 17mm (0.67) Digit for Flow Rate or Total
  • Operational Temperature -30 to 80C (-22 to 178F)
  • Rugged Enclosure IP67/NEMA 4X Rated **
  • Wet / Wet Differential Pressure Sensor
  • Amber or Green Backlighting (Optional)
RCM Digital Display
Remote Digital Display Option DR-1

** IP67 indicates that this enclosure is dust-tight and water-tight up to 1 meter immersion depth.

** NEMA 4X Enclosure Characteristics:

  • Indoor or outdoor use, including offshore applications
  • Protection against windblown dust and rain
  • Protection from splashing water and hose-directed water
  • Corrosion-resistant

Standard Specifications:

  • Accuracy: ± 3% F.S.
  • Repeatability: ± 1% F.S.
  • Pressure Max.: 180 psig (12.6 kg/cm2)
  • Pressure Min.: 10 psig (0.67 kg/cm2)
  • Temp. Max.: 212ºF (100ºC)
  • Temp. Min.: -30ºF (-34ºC)
  • IP67 / NEMA 4X Rated Enclosure

Electrical Rating:

Power Input:

100mA, 24Vdc power supply 20-30Vdc (Not Included)
Input loop powered from 4-20mA signal. Voltage drop max. 2.6V


Rate Display:
High intensity reflective numeric and alpha numeric LCD, UV resistant
User definable, 8 times/sec – 30 secs.
Password Protection
7 and 11 digit various symbols and measuring units


Operating Temperature: -30ºF (-34ºC) to 212ºF (100ºC)
Humidity: 0-90% Noncondensing


0.5% F.S. (Non-linearity, Repeatability and Hysteresis

Signal Inputs:

Full Scale Range: 4 to 20 mA DC
Loop Voltage Drop: 2.6 Volts Max. at 20mA
Update Time: 4 times/sec.
Span: 0.001/999,999 with available decimal position
16 Bit resolution, error < 0.01mA/+- 0.05% F.S.
Low cutoff supplied to inhibit indications at low flow rates

Signal Ouput:

The pulse output transmitting accumulated total
Type: one passive transistor output (NPN)
Max. 500Hz pulse length user definable between 1 msec up to 10 sec.

Calibration & Operation:

Input Scaling: Via front keypad
Decimal Point: Via front keypad
Reset Input: Via front keypad
Keypad: 3 tactile feedback keys