Thermal Controller - Normally Open, 12VDC

Thermal Controlled Relay Module How to Setup: Setting the parameters(P0, P1, P2, P3, P4, P5, P6) The module has seven parameters to set, which makes the module flexible for different applications. Setting a parameter on the module is done using the switches on the module only. To set any parameter,...
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Thermal Controlled Relay Module

How to Setup:

Setting the parameters(P0, P1, P2, P3, P4, P5, P6)

The module has seven parameters to set, which makes the module flexible for different applications. Setting a parameter on the module is done using the switches on the module only. To set any parameter, long-press the SET button for around 5 seconds. After 5 seconds, the module displays P0, the ‘+’ and ‘-” buttons can be used to scroll through the different parameters(P0 to P6). Once you decide which parameter to be changed, go to that parameter using ‘+’ and ‘-” buttons and press the set button once. Once you are in the specific parameter, you can change the values using the ‘+’ and ‘-” buttons. After no activity for 5 seconds, the values will be set automatically and the module will return displaying its default temperature.

The table in the next section depicts the range of the parameters and the usual values for the proper functioning of the module.

1. Heating or Cooling Parameter (P0):

The first parameter P0 has two settings, Cooling or Heating. It can be set based upon the application in which it has to be used(i.e. For heaters/coolers). While connecting a cooling system, set the P0 to ‘C’, as the relay will energize when the temperature is reached. Whereas, when using a heating system, set the P0 to ‘H’, as the relay will de-energize when the set temperature is reached.

2. Backlash/Hysteresis Parameter (P1):

This parameter can be used to prevent continual triggers whenever the temperature is around the set temperature. Or to say, the desired change in the temperature before relay actuation. If P1 is set to the default value of 2 Degrees C and the trigger temperature is 30 Degree C, the relay will only de-energize once it reaches around 28 Degrees C and not 30 Degree C.

3. Upper limit of the thermostat module (P2):

This parameter can be used as a safety measure. It sets up an upper limit for the user to set the high-temperature trigger value.

4. Lower limit of the thermostat module (P3):

This parameter can be used as a safety measure. It sets up a lower limit for the user to set the low-temperature trigger value.

5. Temperature Offset Correction Parameter (P4):

You can set an offset value if the temperature sensor is unable to display the exact value as the real temperature. If there is a difference in the displayed data and the actual data, an offset value can be set from a range of -7 to 7.

6. Trigger Delay Parameter (P5):

The P5 parameter can be used to provide a delay in relay actuation when the trigger temperature has been achieved. The delay in this parameter can be set up to 10 minutes.

7. Temperature Alarm Parameter (P6):

The parameter P6 is used as a safety feature. The relay switches off when the value set is reached. The on board display also shows a ‘---’ to indicate an alarming condition. It can be set to ‘OFF’ as default.

Setting the parameters of the Temperature Control Switch

To set the different parameters of the module, long press the ‘Set’ button on the module and change the values using the ‘+’ and ‘-’ buttons.

Settings Parameter Range Default Value
H/C P0 H/C Heat/Cool Mode
Hysteresis Set P1 0.1 ~ 15 2
Upper Limit P2 110 110
Lower Limit P3 -50 -50
Correction P4 -7.0 ~ 7.0 0
Delay Start Time P5 0-10 Mins 0
High Temp Alarm P6 0-100 OFF

Note: Long pressing the +/- button will reset the values to default.

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Return Policy

PLEASE NOTE: These are our GUIDELINES for returns because, after 50+ years in business, we do not like having inflexible policies knowing that many different situations may occur that require us to be flexible, please contact us by email or (888) 294-5597 for more information on any specific return you may have.

General Returns

Returns on normally stocked items need to be made within 30 days of receipt of merchandise either in person at one of our San Diego locations or by being shipped back to us at your expense. Returned merchandise should in original, unopened packaging including all original accessories and instructions. We will not take back merchandise that is not in original packaging, serialized items not matching the serial number on the receipt, missing instruction manuals or accessories, excessively worn packaging, abused, damaged from incorrect use, dented, or marred. Keep in mind that we need to be able to resell the item that is returned so keep this question in mind: “if you were buying this product, would you buy one in the condition of the product you are returning?”. We reserve the right to charge up to a 25% restocking fee for returned merchandise, we will contact you upon receipt of your returned goods if we feel a restocking fee is necessary. Most items that returned in new condition within the 30 day return period will not be subject to a restocking fee.

You must have an RMA# to return any merchandise. You will need to email or call us to obtain an RMA#. If any merchandise is sent back without an RMA# it may be refused or charged up to a 25% restocking fee.

Final Sales

Certain items are not eligible for returns due to the nature of the products: Batteries, Tools, Test Equipment, Semi-Conductors, Capacitors, Cut-to-Order Items, & Chemicals.

Special Orders: Some special order items are final* depending on the product itself or the manufacturer’s return policy. If you want to return a special order, we can check with the manufacturer to see if it can be returned and if they charge a restocking fee. Please note that the manufacturers restocking fee is at their discretion and may exceed 25%.

All cut to order items such as wire & cable looms sales are final*, please make sure that you’re are ordering the correct type and length.

Tool and test equipment sales are final*, if you purchase a tool or piece of test equipment and realize it is not what you wanted call us IMMEDIATELY so we can help you get what you need.

*Sales deemed as "Final" are non-cancellable/non-refundable/non-exchangeable’

Defective Items

In the unfortunate event that you receive an item that is defective, please contact us by email or phone as soon as possible so that we can help resolve the problem. Defective items will generally need to be returned to us for evaluation and then we will have a new replacement sent to you. If you need an advanced replacement, we would need to charge you for the new product upon shipping and provide a refund when the defective product is returned. For items purchased more than 90 days ago, you will typically need to contact the manufacturer for warranty directly. Depending on the type of sale, we may still retain a record of your receipt - if this is the case we can print a new copy for the warranty claim.

If the product being returned is not defective upon testing, it may be treated as a general return (refer to general return policy above).

Refused Deliveries or Invalid Delivery Addresses

Any order that had an invalid shipping address provided to us or is refused at the shipping destination and sent back to us will be charged a 25% restocking fee and treated like an unauthorized RMA. If you are requesting that we re-deliver the package, you will be charged the new freight charge in addition to the original freight and restocking fee. The reason for this policy is that the shipping companies charge us for freight charges inbound, outbound, and an additional fee to have the part sent back to us on these types of shipments.

Notification of Changes

Any changes may to the privacy policy will be posted on our website in our privacy policy page. We reserve the right to change this policy at any time. To insure that you are aware of the most recent changes to this policy please review the last update time below:

If you have any question please feel free to contact us by e-mail or by calling (888) 294-5597 during normal business hours Mon-Fri 8:00am to 5:00 pm PST

Last changed: April 19, 2019

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Thermal Controller - Normally Open, 12VDC
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