645-6 | Wet/wet differential pressure transmitter | range 0-100 psid. | Dwyer Instruments
$1,214.05
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Brand: Dwyer InstrumentsSKU: 645-6
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$3,642.00

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$1,214.05
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645-6 | Wet/wet differential pressure transmitter | range 0-100 psid. | Dwyer Instruments

Dwyer Instruments | 645-6
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Dwyer Instruments 645-6 Documents

Overview

Details for 645-6

The Dwyer 645-6 Differential Pressure Transmitter is designed to measure and transmit differential pressure signals in various industrial applications. It features a pressure range of 0-100 inches of water column (WC), and its output signal is a 4-20 mA signal that is proportional to the measured pressure. This transmitter is commonly used in HVAC systems, clean rooms, and other industrial environments where accurate pressure measurement is required. The Dwyer 645-6 transmitter is constructed with a rugged stainless steel body and a durable diaphragm, ensuring its reliability and long-term performance. Its compact size and lightweight design make it easy to mount in tight spaces. It is also equipped with a zero adjustment screw that allows users to easily calibrate the transmitter in the field. With its accurate and reliable performance, the Dwyer 645-6 Differential Pressure Transmitter is a versatile tool for industrial engineers and maintenance professionals who require precise pressure monitoring and control. It offers a cost-effective solution for monitoring pressure in air handling units, ductwork, and other industrial equipment. Our HVAC supply store is your trusted supplier for Dwyer Instruments products. We offer the best prices and fast shipping on all Dwyer products. Order the Dwyer 645-6 Differential Pressure Transmitter today and experience the difference in pressure measurement accuracy and reliability!

Series 645 Wet/Wet Differential Pressure Transmitter

±0.25% Accuracy, Quick Response, 2-Wire Design

Series 645 Wet/Wet Differential Pressure Transmitters are designed for use with compatible gases and liquids which can be applied to both the pressure and reference ports. Quick response capacitance sensor delivers a 4 to 20 mA output signal proportional to differential pressure with ±.25% accuracy. The Series 645 transmitters are ideal for process control, filter condition monitoring, refrigeration equipment, pump speed control, HVAC equipment, and liquid level measurement. For ease of installation and maintenance, order optional 3-valve manifold assembly. Bleed ports allow for total elimination of air in the line and pressure cavities.

Calibration Option available under Accessories.

California Residents:  Click Here for Proposition 65 WARNING.

Product Applications

  • Process control
  • Filter monitoring
  • Refrigeration equipment
  • Pump speed control
  • HVAC equipment
  • Liquid level measurement
  • Versatile, high-accuracy device for liquid or gas supports designs requiring more precise measurements in support of application
  • Optional 3-way valve manifold supports simplifying installation or removal of transmitter without interrupting process

Specifications

Series
645 Wet/Wet Differential Pressure Transmitter
Category/Type
Pressure
Type
Differential Pressure
Series
645 Wet/Wet Differential Pressure Transmitter
Service
Compatible gases or liquidson both pressure and reference sides.
Wetted Materials
17-4 PH stainless steel; 300 Series stainless steel;fluoroelastomer and silicone O-ringsand bleed screw seals.
Accuracy
±0.25% FS (RSS).
Temperature Limits
Operating: 0 to175°F (-22 to 80°C); Storage: -65 to260°F (-54 to 126°C).
Pressure Limits
(High side) 1 to 5psi: 20 x FS; 10 to 25 psi: 10 x FS; 50psi: 5 x FS; 100 psi: 2.5 x FS; (lowside) 2.5 x FS.
Thermal Effects
(includes zero andspan) ±0.02% FS/°F; 30 to 150°F (-1 to65°C).
Power Requirements
11 to 30 VDC.
Output Signal
4 to 20 mA; 2-wire.
Zero and Span Adjustments
Adjustable; ±1 mA; non-interactive.
Response Time
30 to 50 ms.
Loop Resistance
0 to 1000Ω.
Electrical Connection
Barrier stripterminal block with conduit enclosureand .875" (22 mm) diameter conduitopening.
Process Connection
1/4"-18 female NPT.
Housing
Stainless steel/aluminum;NEMA 4X (IP56).
Weight
14.4 oz (0.4 kg).
Agency Approvals
CE.
3-Valve Manifold Assembly
Manifold
Brass.
Valve Type
90° on/off.
Process Connection
1/4"-18 female NPT.

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