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Flow Rate Transmitters Flow Rate Transmitters

TYPICAL PRESSURE DIFFERENTIALS

For specific differential graphs,refer to Lake data sheet PDDS-404.

M ATERIALS OF CONSTRUCTION (WETTED COMPONENTS)

ALUMINUMBRASSSTAINLESS STEEL High-pressure casing, Aluminum Brass #303 Stainless Steel end ports and tapered shaft Seals Buna-N (STD), EPR,Buna-N (STD), EPR,Viton
® ® ® ® ® with Teflon
® Viton or Kalrez Viton or Kalrez backup (STD), Buna-N, EPR or Kalrez
® Transfer MagnetTeflon
® coated AlnicoTeflon
® coated AlnicoTeflon
® coated Alnico Floating Orifice DiskStainless SteelStainless SteelStainless Steel All other internal parts Stainless SteelStainless SteelStainless Steel
Teflon is a registered trademark of DuPont de Nemours & Co.Viton and Kalrez are registered trademarks of Dow DuPont Elastomers

M ATERIALS OF CONSTRUCTION (NON-WETTED COMPONENTS)

ALUMINUMBRASSSTAINLESS STEEL Enclosure & CoverAluminumAluminumAluminum SealsBuna-NBuna-NBuna-N WindowPyrex
® Pyrex
® Pyrex
® Din ConnectorPolyamidePolyamidePolyamide
Pyrex is a registered trademark of Corning Inc.

MONITOR 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) Maximum operating pressure: aluminum and brass monitors: 3500 PSIG (240 Bar) Stainless steel monitors: 6000 PSIG (410 Bar) Maximum operating temperature:media: 240ºF (116ºC), ambient: 180ºF (82ºC) Pressure differential:Liquid: see graphs. Gases: see Pneumatic data sheetStandard calibration media: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 (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 () = 50(Power supply volts – 12).0-5 VDC: Minimum load resistance 1000. 1-5 VDC: Minimum load resistance 25 K Square Wave Pulse: Minimum load resistance 1000 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 processResponse time:<100 milliseconds

MECHANICAL SIZE CODE

DIMSERIES 3SERIES 4SERIES 5SERIES 5 A6-9/16" (167mm)7-5/32" (182mm)10-1/8" (258mm)12-5/8" (322mm) B2-3/16" (56mm)2-15/16" (75mm)3-13/16" (97mm)3-13/16" (97mm) C4" (101mm)4-1/2" (114mm)5-5/16" (135 mm)5-5/16" (135mm) D1-7/8" (47mm)1-7/8" (47mm)1-7/8" (47mm)1-7/8" (47mm)

w w w. l a k e m o n i t o r s . c o m

E4-7/8" (128mm)5" (127mm)6-3/4" (172mm)6-3/4" (172mm)

LAKE MONITORS2013 South 37th Street Milwaukee, WI 53215414.671.3577 / 800.850.6110Fax: 414.671.5253

F2-1/4" (57mm)2-7/8" (73mm)3-3/4" (95mm)3-3/4" (95mm) Port SizesNPTF: 1/4", 3/8", 1/2"NPTF: 3/4", 1"NPTF: 1-1/4", 1-1/2"NPTF: 2"SAE: #6, #8, #10SAE: #12, #16SAE: #20, #24SAE: #32BSP:3/8", 1/2"BSP: 3/4", 1"BSP: 1-1/4", 1-1/2"BSP: 2"
Note: Consult factory for SAE brass monitor requirements . RDS-404 7.5M CK / WGD / MAS ©Lake Monitors Inc. 2004