ACCURACY

Accuracy of TEC control, temperature stability and measurement depends on type of Thermistor and Current

Thermistor current: 83 mA – default or 12.5 mA – on Customers’ request.

83 mА
(resistance range 100 – 30,000 Ohm)

12.5 mА
(resistance range 100 – 200,000 Ohm)

Rmax, no more,

Ohm

Resolution,

Ohm

Rmax, no more,

Ohm

Resolution,

Ohm

3.01E+04

1.769E-02

2.00E+05

1.174E-01

1.51E+04

1.016E-02

1.00E+05

6.744E-02

7.53E+03

5.446E-03

5.00E+04

3.616E-02

3.77E+03

3.120E-03

2.50E+04

2.072E-02

1.88E+03

2.060E-03

1.25E+04

1.368E-02

9.41E+02

1.361E-03

6.25E+03

9.040E-03

4.71E+02

8.976E-04

3.13E+03

5.960E-03

2.35E+02

8.976E-04

1.56E+03

5.960E-03

 

DX5100 Temperature control accuracy with typical thermistors

A) Thermistor current: 83 mA

Parameter

Units  Examples
Pt1001) Pt10001) NTC2) NTC3)

Resistance

Ohm

100

1000

2200

10000

Resolution

Ohm

0.006

0.006

0.02

0.02

°C

2.3E-03

5.5E-04

8.0E-05

1.0E-04

Control accuracy

°C

0.01

0.005

0.005

0.005

B) Thermistor current: 12.5 mA

Parameter

Units

Examples

Pt1001) Pt10001) NTC2) NTC3)

Resistance

Ohm

100

1000

2200

10000

Resolution

Ohm

0.006

0.006

0.02

0.02

°C

1.6E-02

1.6E-03

1.0E-04

1.0E-04

Control accuracy

°C

0.07

0.01

0.005

0.005

1)       Thermistor for the temperature range 203K…423K

2)       Thermistor, nominal 2.2 kOhm at 20°C and Beta constant 2940 K-1(243K…263K).

3)       Thermistor, nominal 10 kOhm at 25°C and Beta constant 3800 К-1(293К…333К).