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657-1 | Relative humidity/temperature transmitter. | Dwyer Instruments

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Dwyer Instruments 657-1 Documents

657 Instruction Manual 657C Instruction Manual Series 657 Catalog Page More Info

Overview

Details for 657-1

The Dwyer Instruments NCO-657-1 RH/Temp Transmitter is a highly accurate and reliable device designed to measure and transmit relative humidity and temperature data. This transmitter features a 4-20mA output, allowing for easy integration into various control systems. The NCO-657-1 is equipped with a high-quality humidity sensor and a temperature sensor, ensuring precise and stable measurements. It operates on a wide voltage range of 12-32 VDC, making it suitable for use in a variety of applications. With its compact design and robust construction, the NCO-657-1 is ideal for harsh industrial environments. It is commonly used in HVAC systems, environmental monitoring, process control, and other applications where accurate humidity and temperature measurements are essential. Our HVAC supply store offers the Dwyer Instruments NCO-657-1 RH/Temp Transmitter at the lowest prices with fast shipping. Contact us today to place your order and experience the reliability and accuracy of this exceptional product.

Series 657 Relative Humidity/Temperature Transmitter

Dual Channel Design for Simultaneous 4-20 mA Output Signals

The Series 657 Relative Humidity/Temperature Transmitters provide two4-20 mA channels to produce separate output signals for both relative humidityand temperature. These devices deliver ±2% accuracy for humidity and ±1°F fortemperature measurements. Stainless steel probe can be easily mounted to mostductwork using either of the two optional kits below.

*NOTE: The configurator is only available for the Series 657C.

Product Applications

Cleanroom monitoring
HVAC/building control monitoring

Polymer film humidity and thin film RTD temperature sensors offer highly reliable and stable measurements
Remote mount housing offers installation flexibility (657-1)
Rugged die-cast aluminum housing is great for industrial applications (657C-1)

Specifications

Series: 657 Relative Humidity/Temperature Transmitter
Category/Type: Air Quality
Type: Humidity / Temperature Transmitters
Series: 657 Relative Humidity/Temperature Transmitter
Service: Dry clean air.
Range: Relative Humidity: 0-100%; Temperature: 32 to 212°F (0 to 100°C).
Accuracy: Relative Humidity: ±2% (10-90% RH); ±3% (0-10% and 90-100% RH); Temperature: ±1°F (0.5°C).
Temperature Limit: 32 to 140°F (0 to 60°C).
Pressure Limits: 1 psi (.07 bar).
Compensated Temperature Range: 32 to 140°F (0 to 60°C).
Power Requirements: 10-35 VDC.
Output Signal: 2 channels each 4-20 mA. Loop powered on RH channel.
Electrical Connections: 4 screw type terminal.
Mounting Orientation: Mount in any position.
Probe: 657-1: Stainless steel 5/16" x 10"(0.8 x 25.4 cm); 657C-1: 5/16" x 9-1/10" (0.8 x 23.1 cm).
Weight: 657-1: 5.5 oz (156 g); 657C-1: 10 oz (284 g.).