• Simple to Install: All transmitters are factory calibrated and ship fully assembled. Simply install the transmitter into your system and apply power. No straight plumbing required at inlet or outlet.
  • Industry Standard Outputs: Transmitters provide proportional analog or pulse outputs that will drive popular data acquisition devices, meters and analog input cards.
  • Direct Reading: All transmitters provide a visual indication of flow rate that matches the transmitted output.
  • Weather-Tight Construction: The rugged cast aluminum enclosure is built to NEMA 4X standard and allows installation outdoors and in environments where liquid tight seals are required.
  • Rugged and Reliable: Without delicate internal components to break, abrade or corrode, the flow transmitter will provide many years of low-maintenance service
Technical Specifications
Measuring Accuracy:

±2.0% of full scale for oil and water

±2.5% of full scale in center third of measuring range;
±4% in upper & lower thirds for air and gas


±1% of full scale

Flow Measuring Range:

0.1-150 GPM (0.5-550 LPM)

2-1300 SCFM (1-600 SLPS)

Maximum Operating Pressure:

Aluminum & Brass: 3500 PSIG (240 Bar)
Stainless Steel: 6000 PSIG (410 Bar)

Aluminum and brass: 600 PSIG (40 Bar)
Stainless steel: 1000 PSIG (69 Bar)

Maximum Operating Temperature:

Media: 185°F (85°C)
Ambient: 185°F (85°C)

Standard Calibration Fluids:

Oil meters: DTE 25® @ 110°F (43°C), 0.873 sg
Water meters: tap water @ 70°F (21°C), 1.0 sg
Air meters: air @ 70°F (21°C), 1.0 sg and 100 PSIG (6.8 Bar)

Filtration Requirements:

74 micron filter or 200 mesh screen minimum


Standard viscosities up to 110 cSt. For viscosities between 110 to 430 cSt contact factory.

Materials of Construction (non-wetted components):

Enclosure & Cover:  Painted Aluminum

Seals: Buna-N®

Window: Pyrex®

Din Connector: Polyamide


Casing & End Ports: Anodized Aluminum, Brass, or Stainless Steel


Anodized Aluminum: Buna-N® (STD), EPR, FKM, or Kalrez®

Brass: Buna-N® (STD), EPR, FKM, or Kalrez®

Stainless Steel 303: FKM with PTFE backup (STD), Buna-N®, EPR or Kalrez®

Transfer Magnet: PTFE coated Alnico

All other internal parts: Stainless steel

Electronic Transmitter Performance:
Power Requirements:

12-24 VDC

Load Driving Capacity:

4-20mA: Load resistance is dependent on power supply voltage. Use the following equation to calculate maximum load resistance: Max Loop Load (Ω) = 50 (Power supply volts – 12).

0-5 VDC: Minimum load resistance 1000.

1-5 VDC: Minimum load resistance 25 K Ω

Square Wave Pulse: Minimum load resistance 1000 Ω

Transmission Distance:

4-20mA and 1-5 VDC (regulated) are limited only by wire resistance and power supply voltage.

<200 feet recommended for 0-5 VD (regulated) C and square wave pulse.

Over-Current Protection:

Self limiting at 35mA


10-bit (0.1%)

Response Time:

<100 milliseconds

Pressure Differential Graphs

Part Number Guide

Transmitter Part Number Guide