Watlow PM LEGACY PM3 - Page 114

Watlow PM LEGACY™ Limit Controller • 114 • Appendix
mAac 0 50 mAmps AC
Potentiometer, 1K range 0 1200 Ohms
Resistance, 5K range 0 5000 Ohms
Resistance, 10K range 0 10000 Ohms
Resistance, 20K range 0 20000 Ohms
Resistance, 40K range 0 40000 Ohms
Thermistor Input
Input Type
Max Error @
25 Deg C
Accura-
cy Range
Low
Accuracy
Range High
Units
Thermistor, 5K range ±5 0 5000 Ohms
Thermistor, 10K range ±10 0 10000 Ohms
Thermistor, 20K range ±20 0 20000 Ohms
Thermistor, 40K range ±40 0 40000 Ohms
• 0 to 40kΩ, 0 to 20kΩ, 0 to 10kΩ, 0 to 5kΩ
• 2.252kΩ and 10kΩ base at 25°C
• Linearization curves built in
• Third party Thermistor compatibility requirements
Base R @ 25C
Alpha
Techniques
Beta
THERM
YSI
Thermistor
Curve
2.252K Curve A 2.2K3A 004 A
10K Curve A 10K3A 016 B
10K Curve C 10K4A 006 C