Thermocouple Manufacturer

Frequently Asked Questions

• Q: How do I choose between a Type J and Type K thermocouple?

• A: Type K has a wider temperature range and is more common. Type J is more accurate in the lower temperature range (0-760℃) but should not be used in oxidizing atmospheres at high temperatures.

• Q: What is the difference between grounded, ungrounded, and exposed junctions?

• A: Grounded offers fast response but is susceptible to electrical noise. Ungrounded provides electrical isolation with a slightly slower response. Exposed has the fastest response but is fragile and only for non-corrosive, non-pressurized environments.

• Q: Can you make thermocouples with mineral insulated (MI) cable?

• A: Yes, we manufacture a full range of mineral insulated thermocouples, which offer high pressure resistance, flexibility, and protection from harsh environments.

• Q: What is the standard lead length?

• A: We offer standard lead lengths like 1m, 2m, and 5m. However, we can customize the lead length to any specification you require.

• Q: Do you provide thermocouple connectors and extension wires?

• A: Yes, we are a one-stop-shop for temperature sensing. We supply a full range of compatible plugs, jacks, and extension wires for all thermocouple types.

• Q: How do I know if my thermocouple is accurate?

• A: The best way is to compare its output against a calibrated reference thermometer at a known temperature. We can also provide calibrated thermocouples with certification for an additional cost.

• Q: Can I use a standard copper wire to extend a thermocouple?

• A: No. You must use thermocouple extension wire of the same type as the thermocouple. Using copper wire will introduce significant errors in your temperature reading.

• Q: What is the typical lifespan of a thermocouple?

• A: Lifespan varies greatly depending on the temperature, atmosphere, and vibration. In a benign environment, it can last for years. In a harsh, high-temperature corrosive atmosphere, it may need replacement every few months.