Additel ADT286, User Manual

Page: 42 / 129

41

Thermistor Accuracy
Measureme
nt Range
Scanning
Speed
Resolution
24 Hour
(23 ±1) °°C
90 Days
(23 ± 5) °C
1 year
(23 ± 5) °°C
Excitation
Currert
Temperature
Coefficient
( 0~12 ) k
Ω
Slow Speed
1 mΩ 10 ppm or 60 mΩ 30 ppm or 80 mΩ 40 ppm or 80 mΩ
10 µA
5 ppm + 10 mΩ
Medium
Speed
1 mΩ 10 ppm or 110 mΩ 30 ppm or 130 mΩ 40 ppm or 130 mΩ
Fast Speed
10 mΩ 10 ppm or 210 mΩ 30 ppm or 230 mΩ 40 ppm or 230 mΩ
( 10~120 )
k
Ω
Slow Speed
10 mΩ
10 ppm 30 ppm 40 ppm
10 µA
5 ppm + 20 mΩ
Medium
Speed
10 mΩ 10 ppm + 80 mΩ 30 ppm + 80 mΩ 40 ppm + 80 mΩ
Fast Speed
100 mΩ 10.6 ppm + 200 mΩ
30.6 ppm + 200
mΩ
40.6 ppm + 200 mΩ
( 100~1000 )
k
Ω
Slow Speed
0.1 Ω
50 ppm 80 ppm 100 ppm
1 µA
5 ppm + 1 Ω
Medium
Speed
0.1 Ω 50 ppm + 1 Ω 80 ppm + 1 Ω 100 ppm + 1 Ω
Fast
Speed
1 Ω 51 ppm + 2 Ω 81 ppm + 2 Ω 101 ppm + 2 Ω
* Accuracy index: ± (ppm rppm full range)
* Temperature coefficient index: exceeds (18-28) °C range, increase (ppm rxxm
Ω) / °C.
* Specifications are for 4-wire function.
* Thermistor measurement supports 2- wire and 4- wire measurement, the above are for 4-wire measurement index, and for
2-
wire measurement, the indicator increases by 20mΩ for 2- wire measurement.
* Thermistor only supports automatically shifting gear.