Dwyer Series APM, MPM & PPM Flow Indicator
Dwyer Series APM, MPM & PPM Flow Indicator

Dwyer Series APM, MPM & PPM Flow Indicator

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Dwyer Flow Indicator 1/8 DIN digital panel meters accept signals from various transmitters and flowmeters and displays them on a six-digit, dual line display in engineering units. These meters will also provide power to the field device and include a NEMA 4X front panel.

The Series MPM Dual Line Configurable Panel Meter is a general purpose process meter that is field selectable for a 4-20 mA or 0-10 V input signal. It provides 24 VDC to power the transmitter. The dual line display can display the process variable on the upper line and engineering units on the lower line. Or, in dual scale mode, the process variable can be displayed in one units (like height) on the upper display and another (like volume) on the lower display.

The Series APM Dual Line Configurable Panel Meter and Series PPM Dual Line Configurable Panel Meter are flow / rate totalizers for analog or pulse inputs. The most useful feature of these products is their dual line display which allows rate and total to be displayed at the same time. The Series APM accepts either a 4-20 mA or 0-10 V input signal and provides the 24 VDC to power the flowmeter. Other features of the APM include square root extraction for DP flow, and programmable exponents for open channel flow.

The Series PPM accepts a pulse input signal and provides either 5, 10 or 24 VDC to power the flowmeter. Adding the 4-20 mA output option converts the pulse into a signal that can be run long distances to a PLC or other device.

Dwyer Flow Indicator Features

  • Three levels of password protection
  • Math functions for flow & round horizontal tanks
  • 32-point linearization, square root or programmable exponent
  • Multi-pump alternation control
  • Rate displayed as units per second, minute, hour, or day
  • Total, grand total or non-resetable grand total
  • Two or four relays & isolated 4-20 mA output options
  • External 4-relay & digital I/O expansion modules
  • RS-232, RS-422/485 serial communication options


  • Level monitoring
  • Pump control
  • Flow rate indication
  • Flow totalization
  • Open channel flow monitoring
  • Process control
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Dwyer Flow Indicator Specification

Input 0 to 20 mA, 4 to 20 mA, 0 to 5V, or ±10V inputs; A 85-265 VAC or 12/24 VDC.
Input Impedance 50 to 100 Ω.
Accuracy ±0.03% of calibrated span ±1 count, square root & programmable exponent accuracy range: 10-100% of calibrated span.
Power Requirements 85 to 265 VAC 50/60 Hz, 90 to 265 VDC, 20 W max or 12 to 24 VDC ±10%, 15 W max.
Display Dual-line 6-digit display, 0.60 in and 0.46 in.
Decimal Points Five positions, user selectable.
Temperature Limits Operating: -40 to 149°F (-40 to 65°C); Storage: -40 to 185°F (-40 to 85°C).
Enclosure Rating NEMA 4X, IP65 front.
Electrical Connections Removable screw terminal blocks accept 12 to 22 AWG wire, RJ45 for external relays, digital I/O, and serial communication adapters.
Output Signal 4 to 20 mA.

Download Data Sheet: Series APM, MPM & PPM Flow Indicator

Ref: dwyer-inst.com

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