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Velleman Thermostat Mini kit Velleman Kits

Thermostat Mini kit

Specification Features:
  • Temperature range: +5°C to +30°C approx. (41°F to 86°F)
  • Relay power rating: 24VDC/AC 3A

  • Power supply: 12VDC / 100mA

Modifications:

The following alterations will allow you to increase the temperature range of the MK138. To make it suitable for use as an egg incubator thermostat (37.5º) with a hysteresis of approximately ±0.4º.  You will need to change the value of these components.

 

  • R4 4K7 1% (Order Code 907-247)

  • R5 3k9 5% (Order Code 906-239)

  • R6 2K7 5% (Order Code 906-227)

  • R7 10M 5% (Order Code 906-610)

  • RV1 1K (Order Code 994-210)

 

Read the fully Illustrated Assembly Manual for WSHA138

 PDF Download

Transformer

 

Case

 

Dimensions (PCB)

54 x 62mm

Weight

59g
   
General purpose low-cost thermostat with NTC temperature sensor. Output operates relay with LED status indicator.

 
The Velleman WSHA138 is available as a ready built module VM137
Order Code   Each  
WSHA138 Whadda Thermostat Mini kit 5.99  

 

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sales@esr.co.uk

Tel: 0191 251 4363

Fax: 0191 252 2296

  
 

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All Prices are in Pounds Sterling and Exclude VAT