|
| |
 |
|
Thermocouples, RTD's, Thermistors and Infrared
|
|
Thermocouple
|
Resistance Thermometer (RTD)
|
Thermistor
|
Infrared
|
| Accuracy |
Less Accurate
|
More Accurate
|
Less Accurate
|
Less Accurate
|
| Temperature Range |
-250 °C to +2600 °C
|
-200 °C to +850 °C
|
-60 °C to 300 °C
|
-50 °C to 3000 °C
|
| Stability (Drift) |
Reasonable for limited lifetime
|
Good
|
Good
|
Good
|
| Repeatability |
Reasonable
|
Good
|
Good
|
Good
|
| Hysteresis |
Excellent
|
Good
|
Good
|
Good
|
| Vibration |
Very Resistant
|
Less Resistant
|
Good
|
Tolerant
|
| Measurement Area |
Single Point
|
Whole RT Element
|
Whole bead (Small)
|
Varies
|
| Diameter |
Small Sizes (to 0.25mm)
|
Larger (3.0mm min)
|
Small (0.5mm min)
|
Varies
|
| Linearity |
Not Linear
|
Reasonably Linear
|
Not Linear
|
Reasonably Linear
|
| Reference Junction |
Required
|
Not Required
|
Not Required
|
Not Required
|
| Lead Wire Resistance |
No Problem
|
Must be Considered
|
No Problem
|
Not Required
|
| Contact Required |
Yes
|
Yes
|
Yes
|
No
|
| Response |
Fast
|
Slower
|
Medium
|
Fast
|
If you are still unsure which type of temperature measurement system you require do
not hesitate to contact us.
|
 |
|
