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The Model WTZ-288 Electric Contact Thermometer is designed to take measurement and control of the temperature ranging from -20ºC to 120ºC in non-corrosive site within a distance of 16 m.
With the application of working principle of pressure-type thermometer, the WTZ-288 is featured by being simple structure, easy to use and at moderate price.
Main Technical Parameters
1.Temperature Mark & Measuring Range(ºC):
|
Mark Range |
-20~+60 |
0~100 |
20~120 |
|
Measuring Range |
20~60 |
40~100 |
60~120 |
2.Indicative Accuracy:1.5(About Measuring Range)
3.Extra Pipe size (m): 3,5,10,16.(If not mention when order, we will make
the pipe 5m long)
4.Electric Contact capability:
(1) Contact form:lower and upper limit;
(2) Contact capacity:10VA(without reactance)
(3) Connecting Diagram: refer figure 2;
(4) Control estate explain: refer chart 1
Recommended added circuit
The power rating of each electric contact in the WTZ-288 is only 10VA without reactance, so users have to resolve the problem of the contact power magnification. For your convenience, we would rather recommend you a power magnification circuit with anti-oscillation and arc extinction (refer to figure 3).
Circuit Feature: Once the lower limit contact closes, the lower limit circuit gets self-locked. Only dose the upper limit contact close, the ower limit circuit unlocks. Therefore, the electric contacts are well -protected.
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