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Description of tests

tests of peltier coolers reliability tests of peltier coolers reliability tests of peltier coolers reliability tests of peltier coolers reliability

The tests are classified as:

  1. Acceptance
  2. Periodic
  3. Reliability
  4. Standardized

 

Acceptance tests are aimed at control of the conformity of coolers to Ecogen Technology standards and customer’s specifications. 100% of the coolers produced are subjected to this test.

Acceptance tests include:

  1. Control of geometrical dimensions
  2. Control of electrical and physical unit parameters: resistance and figure of merit
  3. Visual inspection
  4. Check for compliance with the customer’s specifications

 

Periodical tests are aimed at control of the technological processes used for TEC manufacturing.

Periodical tests are performed on 2-3 types of coolers at least once a 1/2 year. Two coolers of each type that have passed the acceptance tests in full volume are subjected to this test.

In the case the existing technological processes are modified or new processes are introduced, unscheduled periodical tests of the products manufactured by using the new or modified technology are carried out. Periodical tests conform to the requirements of MIL-STD-883 and GOST 20.57.406, 20.57.406-81, 15150.

Periodical tests include:

  1. Strength tests under sinusoidal vibration (MIL-STD-883, method 2002)
  2. Strength tests under single mechanical shocks (MIL-STD-883, method 2007)
  3. Shear strength tests (MIL-STD-883, method 2019)
  4. Transportation  tests (GOST 15150)
  5. Effect of elevated humidity – for sealed coolers (Т=+27°C, relative humidity is 100%)
  6. Cyclic variation of ambient temperature  (MIL-STD-883, method 1010)
  7. Life-time tests (1000 h, I=0.75Imax, Th=27+/-10°C)
  8. Temperature cycling (test +40°С/+90°С with change of current polarity, not less than 104 cycles)
  9. Control of insulation resistance of TEC 

 

Reliability tests are performed for the TECs on which more strict requirements to operational reliability are specified.

Reliability tests include:

  1. Strict temperature cycling (test 0°С/+100°С with current polarity reversal, not less than 103 cycles)
  2. Temperature cycling (test +40°С/+90°С with current polarity reversal, not less than 2х104 cycles for standard TEC and 105 cycles for the TEC to be operated under thermocycling conditions)
  3. High temperature storage (+85°С)
  4. Low temperature storage (-40°С)
  5. Cyclic variation of ambient temperature (MIL-STD-883, method 1010)
  6. Storage at high humidity – for sealed coolers (+85°C, relative humidity 100%)

 

Standardized tests are aimed at estimation of the effectiveness and advisability of introducing changes in the methods of TECs production and the using new materials and components. The content of tests is determined by the type of supposed changes.

All inspections and tests of TECs, unless otherwise specified, are conducted under normal climatic conditions: air temperature - (25±10°С), relative humidity of air - 45-80%, atmospheric pressure - 84-106.7 kPa (630-800 mmHg)
Additional tests can be performed at a special customer’s request. The content and parameters of these tests are agreed with the customer and depend on the anticipated TEC application.

RECOMMENDATIONS While you are choosing thermoelectric device, we kindly ask you to read carefully the product manual and recommendations for its usage. This is a necessary requirement for long-term and effective use of our products.

Ordering products from stock

ATTENTION All foreign orders are required custom clearance which is leading to additional costs. The exact size of these costs can be known only after delivery of the products. For more information please contact your regional branch of UPS.

HOW TO ORDER You can order available products from the site. Choose required product by adding it to the cart, fill the form with your personal data and submit it. Soon we will send to your e-mail an invoice for payment.

PAYMENT 100% prepayment is a necessary requirement for shipping our products. You should make payment in accordance with the conditions in the invoice. Requiring products will be reserved for 5 days while we will wait for your payment.

TERMS Your order will be ready for shipping within no more than 10 working days after we will receive your payment to our account. Estimated delivery time UPS shipping terminal in your region - 4-6 days.

SHIPPING Shipping cost is determined at the stage of registration of the order in the basket Shipping cost is calculated according to the UPS tariffs for region delivery. All taxes and fees are included in the delivery price, except in the estimated costs of customs clearance upon receipt in your area.

WARRANTY The warranty period is 12 months from the start of the operation, but not more than 18 months from date of shipment. The average life of the thermoelectric modules is at least 10 years, subject to the conditions of installation and operation. Guarantees do not apply to products that fail due to violations of the conditions of storage, transport, unpacking, assembly and operation.

Order product that is out of stock

ATTENTION All foreign orders are required custom clearance which is leading to additional costs. The exact size of these costs can be known only after delivery of the products. For more information please contact your regional branch of UPS.

HOW TO ORDER You can order any product that is represented on the site by filling in the feedback form, sending us an e-mail or via telephone +78123398997.

PAYMENT 100% prepayment is a necessary requirement for shipping our products. You should make payment in accordance with the conditions in the invoice. For regular customers the delivery with deferred payment is possible.

TERMS The delivery terms will be from 6 to 12 weeks depending on the quantity (minimum order of 100 pieces) and additional options of required product. If required products are currently in stock, your order will be ready for shipping within no more than 10 working days after we will receive your payment to our account.

SHIPPING Shipping cost is determined at the stage of registration of the order in the basket Shipping cost is calculated according to the UPS tariffs for region delivery. All taxes and fees are included in the delivery price, except in the estimated costs of customs clearance upon receipt in your area.

WARRANTY The warranty period is 12 months from the start of the operation, but not more than 18 months from date of shipment. The average life of the thermoelectric modules is at least 10 years, subject to the conditions of installation and operation. Guarantees do not apply to products that fail due to violations of the conditions of storage, transport, unpacking, assembly and operation.