The Series 657 Relative Humidity/Temperature Transmitters provide two 4-20 mA channels to produce separate output signals for both relative humidity and temperature. These devices deliver ±2% accuracy for humidity and ±1°F for temperature measurements. Stainless steel probe can be easily mounted to most ductwork using either of the two optional kits below.
Made in USA. brand DWYER, model 657
International delivery to Europe, Asia and Africa.
Our warehouses are located in the UK, UAE and Senegal.
Retail price from $367.1
Available
Founded in 1931, DWYER manufactures equipment for measurement, conversion and control – pressure, temperature, level, flow.
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Our specialists are ready to advise you on any technical question. We can find an analogue of any device
PRODUCT APPLICATIONS
| Model | Description | Price |
|---|---|---|
| 657-1 | Relative humidity/temperature transmitter. |
$367.10
|
| 657C-1 | Relative humidity/temperature transmitter. |
$406.65
|
| Model | Description | Price |
|---|---|---|
| A-159 | Mounting gland. Versatile adapter slips on any Series 160, 5/16″ standard pitot tube made after Dec. 1990. Two-part stainless steel fitting slides over tube and provides permanent, secure mounting. Where duct interior is accessible, use the washers and jam nut supplied. For blind applications or in thicker materials, use model A-156 flange mounting plate. Once tube is adjusted to proper depth and angle, tighten smaller hex bushing to lock position. Graphite bushing inside assures leak-proof seal even at higher temperatures. TFE bushing also available. Note: For full insertion with this fitting, order next longer pitot tube. A-159 mounting gland is used for both duct mounting and flange mounting. |
$37.40
|
| A-158 | Split flange mounting. Can be added to any Dwyer® No. 160 standard pitot tube. Zinc plated steel. Gasket is pattern for mounting holes. Secure flange loosely to tube, adjust tube depth and tighten screws. Gasket of 1/16″ Neoprene fits tightly around tube and against duct for leak-proof seal. Nuts, washers included. |
$19.10
|
You can request the necessary certificates, documentation, instructions and user manuals for DWYER 657 using the special form.
You can buy DWYER 657 in UK or Europe at a price starting from 367.1 $ in «DOLCHETRADE» by leaving a request on the website, by phone +441225535040 or by email dolce@dolcetrade.com. DWYER 657 price are subject to change depending on exchange rates. We deliver instruments by transport companies in the United Kingdom and Europe.
