Winland TA-1

Powerless Temperature Sensing Device w/ Single Output

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The Winland TA-1 is a temperature-sensing device that requires no power. It can be set to monitor both a high temperature and a low temperature set point. It has a single alarm output which is Normally Open. Buy the Winland TA-1 here!
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Description

The Winland TA-1 is a temperature-sensing device that requires no power. It can be set to monitor both a high temperature and a low temperature set point. There is a single alarm output, so if both high and low-temperature sensing are used, there is no way to trigger separate alarms for each.

The TA-1 has a temperature alert range from 50℉ - 130℉ (10℃ - 54℃) and should be used in indoor areas with non-condensing humidity only. Outside of this temperature range, the alarm contacts may not function properly. For display purposes, the TA-1 can be used in temperatures from -30℉ - 130℉ (-34℃ - +54℃). The temperature accuracy of this device is ±3℉ (±1.7℃). The alarm output circuit is a Normally Open, gold plated dry contact with a contact rating of 50 mA @ 12VDC.

The items needed to install the Winland TA-1 are a standard (flathead) screwdriver, an 11/32" wrench, and if you plan to use the alarm output, 18 - 22 AWG twisted pair wire. The installation guide comes with a mounting template so that you can mark the area where the sensor is to be mounted. It uses standard keyhole style mounting holes. The screws and wall anchors for mounting are included.

Set the high and low temperature set points using the previously mentioned 11/32" wrench to loosen the locking nut for the low temperature limit arm, then use the flathead screwdriver to raise or lower the arm. Once the sensing arm is in the proper position, tighten the locking nut again, this is very important as the device won't function properly if the locknut is not retightened. Follow the same process to raise or lower the high limit sensing arm. This is an analog device, so the temperature readout and the set points may not be precise. It is recommended that there be at least a 10 degree difference between the low and high set points.

When the temperature indicating arm comes into contact with one of the limit arms, it causes a short to occur in the alarm output circuit, which signals the alarm panel that there is a high or low temperature condition. Since there is only a single alarm output, there will be no way to distinguish between the two, unless you use two separate TA-1's, one for high temperature, and one for low, and tie them to two separate zones on an alarm panel.

There is also no way to disable either sensing limit. If you only want to monitor for high temperature alarms, for example, you will need to set the low temperature sensing arm all the way down as low as it will go. As long as the temperature never reaches that limit, it will never cause an alarm. If you instead want to monitor only the low temperature limit, then set the high temperature sensing arm all the way as high as it will go.

Specifications

  • Power Requirement:No power is required for this device.
  • Low Limit Adjust Range: -30℉ - 120℉ (-34℃ - +49℃)
  • High Limit Adjust Range: -20℉ - 130℉ (-29℃ - +54℃)
  • Temperature Accuracy: ±3℉ (±1.7℃)
  • Temperature Sensing Element: Bimetallic Coil
  • Outputs: One (1) Gold plated, Normally Open, Dry Contact (Not for High Voltage Use.)
  • Contact Rating: 50mA @ 12VDC
  • Weight:6.5oz (.18kg)
  • Dimensions:6.25" x 3.75" x 2" (15.9cm x 9.5cm x 5.1cm)
  • Material: ABS

Brand: Winland

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