For 1/4" - 2" Pipe Sizes

Flow Transmitters, Flow Rate Transmission Products, Lake MonitorsStyle R Flow Transmitters ce

Ideal for batching, industrial process control, mobile hydraulic equipment and computer/PLC-controlled hydraulic system monitoring applications.

  • SIMPLE TO INSTALL
    All transmitters are factory calibrated and ship fully assembled. Simply install the transmitter into your system and apply power.

  • INDUSTRY STANDARD OUTPUTS
    Transmitters provide proportional analog outputs of 4-20mA, 0-5 Vdc and 1-5 Vdc1, and 20-2000 Hz square-wave pulse. These outputs will drive popular data acquisition devices, meters and analog input cards.

  • DIRECT READING
    All transmitters provide a visual indication of flow rate proportional to the transmitted output.

  • WEATHER-TIGHT CONSTRUCTION
    The rugged cast aluminum NEMA type 4X enclosure allows installation in outdoor applications and in environments where liquid tight seals are required.

  • RUGGED AND RELIABLE
    Without delicate internal components to break, abrade or corrode, the Lake flow transmitter will provide many years of low-maintenance service.

  • COMPATIBLE WITH LAKE MONITORS ’ R/T100 AND R100 FLOW ANALYZERS
    The Lake flow rate transmitter combines with these Lake analyzers to make a powerful flow instrument capable of remote monitoring of rate and total flows.

1The 1-5Vdc output requires an external 249 ohm resistor (not included with transmitter) to be wired at the receiving device.


Flow Transmitter Engineering Specification

THE IN-LINE FLOW RATE METER/TRANSMITTER SHALL:

  • Be factory calibrated for 4-20mA, 0-5Vdc, 1-5Vdc, and square wave pulse outputs.

  • Use the variable annular orifice technique with compression spring recoil.

  • Not require inlet or outlet straight plumbing, or require vertical orientation.

  • Have a measuring accuracy of ±2.5% of full scale in the center third of the measuring range, and ±4% in upper and lower thirds.

  • Have a stainless steel sharp-edged orifice

  • Have a maximum working pressure rating of 3500 or 6000 PSIG for liquids.

  • Have a maximum working pressure rating of
    600 or 1000 PSIG for gasses.

  • Have a weather-tight external construction.

  • Be Lake Monitors No. R _ _ – _ _ _ – _ _.

Flow Transmitter Materials of Construction (Wetted Components)

Aluminum

Brass

Stainless Steel

High-pressure casing, end ports and tapered shaft

Aluminum

Brass

#303 Stainless Steel

Seals

Buna-N (STD.), EPR, Viton®
or Kalrez®

Buna-N (STD.), EPR, Viton® or Kalrez®

Viton® with Teflon® backup (STD.), Buna-N,
EPR or Kalrez®

Transfer Magnet

Teflon® coated Alnico

Teflon® coated Alnico

Teflon® coated Alnico

Floating Orifice Disk

Stainless Steel

Stainless Steel

Stainless Steel

All other internal parts

Stainless Steel

Stainless Steel

Stainless Steel

Teflon is a registered trademark of DuPont de Nemours & Co.
Viton and Kalrez are registered trademarks of Dow DuPont Elastomers


Materials of Construction (Non-Wetted Components)

Aluminum

Brass

Stainless Steel

Enclosure & Cover

Aluminum

Aluminum

Aluminum

Seals

Buna-N

Buna-N

Buna-N

Window

Pyrex®

Pyrex®

Pyrex®

Din Connector

Polyamide

Polyamide

Polyamide

Pyrex is a registered trademark of Corning Inc.


Meter Performance

Measuring accuracy:

±2.5% of full-scale in the center third of the measuring range; ±4% in upper and lower thirds

Repeatability:

±1% of full-scale

Flow measuring range:

0.05-150 GPM (0.2-560 LPM); 1.5-1300, SCFM (0.75-610 SLPS)

Pressure differential:

See Brochure

Maximum operating pressure:

aluminum and brass meters: 3500 PSIG (240 Bar)
stainless steel meters: 6000 PSIG (410 Bar)

Maximum operating temperature:

media: 240°F (116°C), ambient: 180°F (82°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

DTE 25 is a registered trademark of Exxon Mobil


Electronic Transmitter Performance

Power requirements:

12-35 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 Ω
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 are limited only by wire resistance and power supply voltage.
<200 feet recommended for 0-5 VDC and square wave pulse.

Over-current protection:

self limiting at 35mA

Resolution:

10 bit (0.1%)

Isolation:

Inherently isolated from the process

Response time:

<100 milliseconds



Mechanical Size Code
Flow Rate Alarm CAD

DIM

Series 3

Series 4

Series 5

Series 5

A

6-9/16"
(167mm)

7-5/32"
(182mm)

10-1/8"
(258mm)

12-5/8"
(322mm)

B

2-3/16"
(56mm)

2-15/16"
(75mm)

3-13/16"
(97mm)

3-13/16"
(97mm)

C

4"
(101mm)

4-1/2"
(114mm)

5-5/16"
(135 mm)

5-5/16"
(135 mm)

D

1-7/8"
(47mm)

1-7/8"
(47mm)

1-7/8"
(47mm)

1-7/8"
(47mm)

E

4-7/8"
(128mm)

5"
(127mm)

6-3/4"
(172mm)

6-3/4"
(172mm)

F

2-1/4"
(57mm)

2-7/8"
(73mm)

3-3/4"
(95mm)

3-3/4"
(95mm)

Port Size

NPTF: 1/4", 3/8", 1/2"
SAE: #6, #8, #10
BSP: 3/8", 1/2"

NPTF: 3/4", 1"
SAE: #12, #16
BSP: 3/4", 1"

NPTF: 1-1/4", 1-1/2"
SAE: #20, #24
BSP: 1-1/4", 1-1/2"

NPTF: 2"
SAE: #32
BSP: 2"

Note: Consult factory for SAE brass meter requirements.


Download Brochure