Process Controls Home
|
|
|
Flow Rate Transmitters and Sensors
|
|
|
•
|
Simple to Install:
All transmitters are factory calibrated and ship fully assembled. Simply install the transmitter into your system and apply power.
|
|
•
|
Weather-Tight Construction:
The sealed, corrosion resistant, enclosure allows installation in environments where liquid tight seals are required.
|
|
•
|
Industry Standard Outputs:
Transmitters provide proportional analog outputs of 4-20mA, 0-1mA, 0-5Vdc and 1-5 Vdc1. These outputs will drive popular data acquisition devices, meters and analog input cards.
|
|
|
•
|
Rugged and Reliable:
Without delicate internal components to break, abrade or corrode, the Lake flow transmitter will provide many years of low maintenance service.
|
|
•
|
Direct Reading or Optional Digital Display:
All transmitters provide a visual indication of flow rate integral to the transmitted output. For improved readability, an integral digital display is available.
|
|
•
|
Compatible With Lake Monitor's R100 & R/T100:
The Lake flow rate transmitter and analyzer combine to make a powerful flow instrument capable of monitoring rate and total flows.
|
1 The 1-5Vdc output requires an external 250 OHM resistor to be wired at the receiving device.
|
|
ENGINEERING SPECIFICATIONS:
The in-line flow rate monitor/transmitter shall:
|
•
|
be factory calibrated for 4-20mA, 0-1mA, 0-5Vdc and 1-5Vdc.
|
|
•
|
use the variable annular orifice technique with compression spring recovery.
|
|
•
|
not require inlet or outlet straight plumbing or require vertical pipe mounting
|
|
•
|
have measuring accuracy of ±2.5% of full scale in the center third of the measuring range and ±4% of full scale accuracy over the entire flow measuring range.
|
|
•
|
have a stainless steel sharp-edged orifice.
|
|
•
|
have a weather-tight external construction.
|
|
•
|
be Lake monitors No. R _ _ - _ _ _ - _ _ .
|
|
MATERIALS OF CONSTRUCTION:
Wetted Components
|
Component
|
Aluminum
|
Brass
|
Stainless Steel
|
|
High-pressure casing, end ports and tapered shaft
|
Aluminum
|
Brass
|
#304 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
|
|
MATERIALS OF CONSTRUCTION:
Non-Wetted Components
|
Component
|
Aluminum
|
Brass
|
Stainless Steel
|
|
Enclosure
|
Series 3: polycarbonate
Series 4: polyester
Series 5: polycarbonate and PVC
|
Series 3: polycarbonate
Series 4: polyester
Series 5: polycarbonate and PVC
|
Series 3: polycarbonate
Series 4: polyester
Series 5: polycarbonate and PVC
|
|
Window Seals
|
Buna-N
|
Buna-N
|
Buna-N
|
Teflon, Viton and Kalrez are registered trademarks of duPont de Nemours & Co.
|
PERFORMANCE:
|
•
|
Measuring Accuracy:
±2.
5% of full-scale in the center third of the measuring range; ±4% of full-scale over the entire scale range.
|
|
•
|
Repeatability:
±1%
of full-scale
|
|
•
|
Flow Measuring Range:
0.05-150 GPM (0.2-560 LPM)
|
|
•
|
Maximum Operating Pressure:
Aluminum and Brass monitors: 3500 PSIG (240 Bar) Stainless Steel monitors: 6000 PSIG (410 Bar)
|
|
•
|
Maximum Operating Temperature:
Fluid
: 240ºF (116ºC); Ambient: 180ºF (82ºC); Pressure differential: < 30 PSI
|
|
•
|
Pressure Differential:
see our BASIC data sheet for graphs. Gases: see PNEUMATIC
|
|
•
|
Standard Calibration Fluids:
Oil monitors: DTE 25 @ 110ºF (43ºC), 0.873 sg Water monitors: tap water @ 70ºF (21ºC), 1.0 sg Air monitors: air @ 70ºF (21ºC), 1.0 sg and 100 PSIG
|
|
|
MECHANICAL:
|
|
|
|
|
DIM
|
Series 3
|
Series 4
|
Series 5
|
Series 5
|
|
A
|
6-9/16"
(167mm)
|
7-5/32"
(182mm)
|
3-1/2"
(90mm)
|
3-1/2"
(90mm)
|
|
B
|
3-11/32"
(85mm)
|
3-9/16"
(90mm)
|
10-1/8"
(258mm)
|
12-5/8"
(322mm)
|
|
C
|
3-5/32"
(80mm)
|
3-9/16"
(90mm)
|
–
|
–
|
|
D
|
1-7/8"
(47mm)
|
1-7/8"
(47mm)
|
–
|
–
|
|
Port Sizes
|
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"
|
|
|
PRESSURE DIFFERENTIAL VS FLOW RATE:
|
|
|
ELECTRONIC TRANSMITTER PERFORMANCE:
|
•
|
Power Requirements:
12-35 Vdc, connections via screw terminal
|
|
•
|
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 (ohms) = 50(Power supply volts - 12). 0-5Vdc: Minimum load resistance 1000 ohms. 0-1mA: Maximum load resistance 100 ohms. 1-5Vdc: Minimum load resistance 25K ohms
|
|
•
|
Transmission Distance:
4-20mA, 0-1mA and 1-5Vdc: limited only by wire resistance and power supply voltage. 0-5Vdc: <200 feet recommended.
|
|
•
|
Digital Display:
3.5 digits, 0.5" digit height, LCD
|
|
•
|
LED Indicator:
Provides power indication, intensity increases with flow rate
|
|
•
|
Over-Current Protection:
Self limiting at 35mA
|
|
•
|
Resolution:
Infinite
|
|
•
|
Isolation:
Inherently isolated from the process.
|
|
•
|
Response Time:
<0.1 seconds
|
|
|
