Dwyer pressure transmitter
Since the company was founded in 1931, customers have come to recognize Dwyer Instruments to stand for quality, reliability, and readily available low cost products. As a leading manufacturer in the controls and instrumentation industry, we continue to grow and serve major markets including, but not limited to HVAC, chemical, food, oil and gas, and pollution control. New applications are discovered daily through a cooperative effort between Dwyer and its customers. It has been these relationships with our customers that allow us to continue to develop market demand products and further our success from leading established brand names such as the Magnehelic® pressure gages, Photohelic® switch/gages, Rate Master® flowmeters, and Hi-Flow® valves. In addition to new product development
Service: Compatible gases and liquids.
Wetted Materials: Type 316L SS.
Accuracy:
626: 0.25% FS; 0.20% RSS;
628: 1.0% FS; 0.5% RSS;
626 Absolute Ranges: 0.5% FS; 0.35% RSS.
(Includes linearity, hysteresis, and repeatability).
Temperature Limit: 0 to 200°F (-18 to 93°C).
Compensated Temperature Range: 0 to 175°F (-18 to 79°C).
Thermal Effect: ±0.02% FS/°F. (includes zero and span).
Pressure Limits: See Catalog page.
Power Requirements: 10-30 VDC (for 4-20 mA, 0-5, 1-5, 1-6 VDC outputs); 13-30 VDC (for 0-10, 2-10 VDC outputs); 5 VDC ±0.5 VDC (for 0.5-4.5 VDC ratio-metric output).
Output Signal: 4-20 mA, 0-5 VDC,1-5 VDC, 0-10 VDC, or 0.5-4.5 VDC.
Response Time: 50 msec.
Loop Resistance: 0-1000 Ohms max. R max = 50 (Vps-10) Ohms (4-20 mA output), 5K Ohms (0-5, 1-5, 1-6, 0-10, 2-10, 0.5-4.5 VDC output).
Stability: 1.0% FS/year (Typ.).
Current Consumption: 38 mA maximum (for 4-20 mA output); 10 mA maximum (for 0-5, 1-5, 1-6, 0-10, 2-10, 0.5-4.5 VDC output); 140 mA maximum (for all 626/628/629-CH with optional LED).
Electrical Connections: Conduit Housing (-CH): terminal block; 1/2" female NPT conduit. General Purpose Housing (-GH): cable or DIN E
The Mercoid® Series 3200G Smart Pressure Transmitter is a microprocessor-based high performance transmitter, which has flexible pressure calibration, push button configuration, and programmable using HART® Communication. The Series 3200G is capable of being configured with the zero and span buttons, a field calibrator is not required for configuration. The transmitter software compensates for thermal effects, improving performance. EEPROM stores configuration settings and stores sensor correction coefficients in the event of shutdowns or power loss. The Series 3200G is FM approved for use in hazardous (Classified) locations. The 100:1 rangeability allows the smart transmitter to be configured to fit any application.
FEATURES
Completely configurable using zero/span buttons (No calibrator required)
Rangeablity (100:1)
High accuracy (0.075%)
Automatic ambient temperature compensation
Fail-mode process function
SPECIFICATIONS
Service: Compatible gases, steam, liquids or vapors.
Wetted Materials: 316L SS.
Accuracy: 0.075% FS (@ 20C
Rangeablity: 100:1 turn down.
Stability: 0.125% FSO/yr
Temperature Limits:
Process: -40 to 248F (-40 to 120C
Ambient: Without LCD -40 to 1
Accurate to 1% of full scale, The Series 628CR Pressure Transmitter, contains a low cost ceramic sensor housed in a compact, rugged, NEMA 4X stainless steel body. Ideal for the budget conscious OEMs that require high levels of performance, reliability and stability at an unbeatable price. The 628CR housing is small and lightweight for optimum compatibility with OEM systems. The design allows for a variety of pressure ranges from -14.7 to 500 psi and optional electrical connections allowing you to select the right transmitter for your application.
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Ceramic, fluoroelastomer 316L SS.
Accuracy: 1.0% FS (includes linearity, hysteresis and repeatability)
Stability: 0.25% FS/year
Temperature Limits: 0 to 185F (-18 to 85C
Compensated Temperature Range: 0 to 175F (-18 to 79C
Pressure Limit:
Max pressure: 2x range.
Burst pressure: 3x range.
Thermal Effect: 0.04% FS/
Power Requirements: 9 to 30 VDC.
Output Signal: 4 to 20 mA.
Response Time: 3 ms typ.
Loop Resistance: 0-1200 Ohm max.
Current Consumption: 40 mA max.
Electrical Connections: Cable or DIN connector.
Process Connection: 1/4? male NPT or 1/4?
Series 634ES Transmitters sense a single pressure for air, compatible gas or liquid and provide 4-20 mA output signal. Positive pressure can be measured within an accuracy of ±0.5% of span. The Series 634ES uses an isolated piezoresistive pressure sensor to produce a resistance change across a wheatstone bridge. Convenient 2-wire operation simplifies installation. Zero and span adjustments are fully protected inside a rugged die cast aluminum housing with durable gray polyurethane finish. Enclosure is designed to meet NEMA 4X requirements.
Positive pressure can be measured within an accuracy of 0.5% of span,The Series 634ES uses an isolated piezoresistive pressure sensor to produce a resistance change across a wheatstone bridge. The signal is conditioned and converted into a 4-20 mA output signal. For applications requiring direct pressure or percent of full span read-ings, the optional A-701 digital readout makes an ideal companion device, providing a bright .6± high, 3-1/2? digit LED and supplying powe to the Series 634ES Transmitter.
PHYSICAL DATA
GENERAL
Maximum Pressure: See chart on this page.
Wetted Parts: 316, 316L SS.
Housing: Designed to meet NEMA-4X.
ELECTRICA
The Series 636 Pressure Transmitter is a low cost, fixed range, stainless steel transmitter with ±0.30% accuracy. It is designed to continuously measure pressure for years in even the toughest environmental and media conditions. Select from 4 ranges to 0-300 psig (0-20 bar) with choice of 4-20 mA output (Model 636) or 1-5 VDC output (Model 636LP). Transmitters are explosion-proof, (FM approved) and meet NACE standards for off-shore applications.
The Series 644 Industrial Pressure Transmitter is a robust transmitter designed for high accuracy pressure applications. Boasting an accuracy of ±0.05% FS RSS (<±0.25% TEB), the 644 is intended for precise measurements in the critical applications of calibration technology, hydraulic/pneumatic controls, and many more laboratory and industrial settings. The Series 644 offers multiple measurement options with two output choices (VDC or mA) and ten psig pressure ranges (optional 0 to 15 psia). The robust and compact all stainless steel Series 644 is available with either a 1/4" male NPT, or 7/16"-20 male SAE process connections. Each transmitter is provided with an 11 point NIST traceable calibration certificate
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: 17- 4 PH SS.
Accuracy: 0.05% FS RSS
Total Error Band (Includes all thermal effects): <0.25% FS over entir
temperature compensated range.
Stability: < 0.15% FS/year.
Operating Temperature Limits: -40 to 185F (-40 to 85C
Pressure Limits: Proof pressure and burst pressure: See pressure limits table
below.
Compensated Temperature Range: -4 to 140F (-20 to 60C
Power Requirements:
9 to 30
The Series 672 Low Pressure Transducer is a perfect solution to any application where a very accurate low pressure transducer is necessary. Using
variable capacitance technology, the Series 672 is designed to measure pres-sures as low as 10 w.c. up to 400 w.c., very low ranges for a single connection
pressure transducer. The 672 also features a 0.25% F.S. accuracy. Use the Series 672 in liquid level, flood warning, waste water, clean room, and open
channel flow applications.
SPECIFICATIONS
Service: Compatible liquids and gases.
Wetted Materials: 318 Duplex SS, Ceramic, Fluoroelastomer (FKM).
Housing Material: 318 Stainless Steel.
Accuracy: 0.25% F.S. (RSS). Includes non-linearity, hysteresis, an
non-repeatability.
Stability: 0.25% F.S./1 year.
Temperature Limits: -40 to 212F (-40 to 100C
Compensated Temperature Limits: -5 to 140F (-20 to 60C
Pressure Limits: 29 PSI (2 bar) for up to 85? w.c. (0.2 bar) ranges; 58
PSI (4 bar) for 85? to 140? w.c. (0.2 to 0.35 bar); 73 PSI (5 bar) for 141?
to 400? w.c. (0.35 to 1 bar).
Thermal Effects:
Zero: 1.0%F.S./100F (2.0%F.S./100C).
Span: 1.0%F.S./100F (2.0%F.S./100C).
Power Requirements:
4-20 mA: 9-35 VDC
0-5 VDC: 7.5-35
The low cost Series 673 Pressure Transmitter is a fixed range
transmitter designed for harsh environments and suitable for high shock
and vibration applications. Constructed of stainless steel, the Series 673
provides a 4-20 mA output signal with 0.25% accuracy. Use the Series
673 in industrial OEM equipment, hydraulic systems, HVAC equipment,
industrial engines and compressor controls.
INSTALLATION
Electrical Connections
The Series 673 Pressure Transmitter is a true 2-wire, 4-20 mA current
output device and delivers rated current into any external load of 0-800
ohms. The transmitter has a two wire cable where red is positive and
black is negative. Connect shield to system or earth ground.
The 4-20 mA current output units are designed to have current flow in
one direction only - please observe polarity. We suggest that the
electrical cable shield be connected to the systems loop circuit groun
to improve electrical noise rejection.
Media Compatibility
These transmitters are designed to be used with any gas or liquid
compatible with 17-4 PH stainless steel.
Pressure Fitting
Typically, standard pipe fittings and procedures should be used.
However, for pressure ran
The Series 679 Pressure Transmitter is compatible with a wide range of
gases and liquids, and is specially designed for weatherproof service (NEMA
4/IP56). The Model 679 can measure pressures with an accuracy of .25%. Thi
model provides a 4-20 mA output and is field adjustable.
SPECIFICATIONS
Service: Corrosive liquids and
gases.
Accuracy: .25% FS (include
non-linearity, hysteresis and no
repeatability).
Pressure Limits: See table.
Output: 4-20 mA, 2-wire.
Supply Voltage: 9-30 VDC.
Loop Resistance: 800 ohms.
Zero and Span Adjustment:
15%, non-interactive
Stability: Less than .5% FS/
year.
Range
Overpressure
Temperature Limits: -40 to
260F (-40 to 125C) 10 to 9
RH, non-condensing.
Compensated Temperature
Range: -4 to 176F (-20 to 80C
Pressure Connection: 1/4? male
NPT.
Wetted Parts: Corrosive resistant
17-4 PH SS.
Enclosure: Aluminum.
Electrical Connections: Two 1/2
conduit ports.
Weight: 13.4 oz (380 g).
Agency Approvals: CE.
Model
0 to 25 psi
100 psi
679-0
0 to 50 psi
150 psi
679-1
0 to 100 psi
300 psi
679-2
0 to 250 psi
500 psi
679-3
0 to 500 psi
1000 psi
679-4
0 to 1000 psi
2000 psi
679-5
0 to 3000 psi
4500 psi
679
Environment - The Series 681 Transmitter is designed to be used with any gas or liquid compatible with 316L stainless steel (316 for ranges > 30 psig). It is designed to be splash and drip proof for wash-down cleaning and can also be completely submerged with the exception of the open end of the electrical cable. Cleaning - The pressure sensing diaphragm will withstand normal high pressure washing and partial vacuums created by fast cooling of steam sterilized tanks. However, be sure not to exceed the proof pressure (listed on specification sheet). In high pressure washing, care should be taken not to spray directly on diaphragm as it could result in exceeding the proof pressure. The 681 can also be cleaned by dipping the diaphragm in a container of cleaning solution or by wiping gently with a soft cloth.
Temperature Limits - The operating temperature limits of the 681, based on the limits of the electronics, are -40F to 260 F. F to 180 F range Thermal Effects20
Zero Shift ? 2.00% F.S./100 F
Span Shift ? 2.00% F.S./100
Mounting - The 681 will mount directly to a mating tri-clover flange along with a tri-clover type clamp and gasket. (2 inch tri-
SERIES 682 PERFORMANCE SPECIFICATIONS
*
Accuracy RSS 0.13% FS
(at constant temperature)
Non-Linearity, BFSL 0.1% FS
Hysteresis0.08% FS
Non-Repeatability0.02% FS
*RSS of Non-Linearity, Non-Repeatability and Hysteresis.
Thermal Effects
Compensated Range F(C)-4 to +176 (-20 to +80)
Zero Shift %FS/F(C) 1.0 (0.9)
Span Shift %FS/F(C) 1.5 (1.4)
Stability0.5% FS/YR
Model Number
Description
682-0
Industrial pressure transmitter, range 0-25 psi, 100 psi overpressure.
682-1
Industrial pressure transmitter, range 0-50 psi, 150 psi overpressure.
682-2
Industrial pressure transmitter, range 0-100 psi, 300 psi overpressure.
682-3
Industrial pressure transmitter, range 0-250 psi, 500 psi overpressure.
682-4
Industrial pressure transmitter, range 0-500 psi, 1000 psi overpressure.
682-5
Industrial pressure transmitter, range 0-1000 psi, 2000 psi overpressure.
682-6
Industrial pressure transmitter, range 0-3000 psi, 4500 psi overpressure.
682-7
Industrial pressure transmitter, range 0-5000 psi,
The Series DPT Digital Pressure Transmitter with Switches combines a large, 14-segment LED display with two programmable solid state switches into one compact unit. A unique, 3-way rotating design allows the DPT to meet specific installation requirements without any retrofitting. The display and electrical connection can be rotated independently to maximize visibility while still orienting the electrical connection in the best position for the cable connector. Large, ergonomically designed push buttons allow for quick/easy programming and thin-film piezoresistive sensor technology guarantees long-term reliability and stability.
The Series FDT Flush Diaphragm Transmitter is designed for highly cyclical conditions. Flush sensor feature prevents any potential inaccuracies due to build-up or blockage which is a typical problem found in most non-flush transmitter sensors. Units have a non-oil filled sensor element that provides resistance to temperature fluctuations. Manufactured from a solid piece of steel, the sensing diaphragm can withstand the most abrasive/cyclical applications. Series FDT transmitters perform well in high cyclical environments with the presence of water-hammering or spiking.
Flush feature greatly reduces chance of leakage. Tough materials allow the unit to withstand harsh process conditions. Advanced manufacturing techniques, extreme environmental burn-in, and thorough residual stress relieving procedures ensure unit will maintain its high performance standard over time.
SPECIFICATIONS
Service: Compatible liquids and gases, adhesives, slurries, mate-
rials that can harden, or where a pressure cavity is not desired.
Wetted Materials: 316 & 15-5 SST.
Accuracy: °?0.5% FSO (includes non-linearity, hysteresis, an
repeatability).
Stability: °?0.25% FSO per year
Temperature
HATX Pressure Transmitter combines high accuracy with exceptional stability and reliability for environmental tests and measurements. All models come with NIST certificates and are available in barometric, absolute, and gage ranges. These transmitters are ideal for a variety of applications such as weather data systems, laser interferometers, altimeter setting indicators, and engine test cells. Series HATX transmitters consume a very low amount of power and possess an exceptionally fast warm-up and response time. With its excellent consistency and great performance, the HATX transmitter is well suited for the most demanding of applications.
SPECIFICATIONS
Service: Non-conducting air/gas.
Wetted Materials: Anodized aluminum, alumina ceramics, gold,
fluorocarbon elastomer sealant & Buna-N O-ring.
Accuracy: <0.05% FS
Stability: <0.1% FS over 6 months @ 70
Pressure Limits:
Barometric Ranges: 800 to 1100 hPa/mb;
600 to 1100 hPa/mb: 20 psia.
Absolute and Gage Ranges: 1.5x of std range.
Temperature Limits:
Operating: 0 to 175F (-18 to 71C
Storage: -65 to 250F (-53 to 121C
Compensated Temperature Range: 30 to 120F (-1 to 49C
Thermal Effect:
Barometric Ranges
Model Number
Description
IS626-00-GH-P1-E1-S1
Intrinsically safe pressure transmitter, range 15 psia, max. pressure 30 psi, over pressure 150 psi.
IS626-07-GH-P1-E1-S1
Intrinsically safe pressure transmitter, range 15 psi, max. pressure 30 psi, over pressure 150 psi.
IS626-08-GH-P1-E1-S1
Intrinsically safe pressure transmitter, range 30 psi, max. pressure 60 psi, over pressure 300 psi.
IS626-09-GH-P1-E1-S1
Intrinsically safe pressure transmitter, range 50 psi, max. pressure 100 psi, over pressure 300 psi.
IS626-10-GH-P1-E1-S1
Intrinsically safe pressure transmitter, range 100 psi, max. pressure 200 psi, over pressure 500 psi.
IS626-11-GH-P1-E1-S1
Intrinsically safe pressure transmitter, range 150 psi, max. pressure 300 psi, over pressure 750 psi.
IS626-12-GH-P1-E1-S1
Intrinsically safe pressure transmitter, range 200 psi, max. pressure 400 psi, over pressure 1000 psi.