Functional specifications 
Analog-to-digital 
Centigrade (°C)  Fahrenheit (°F)  Input impedance
Rated input range
*1
 
Pt100: -180°C to +800°C 
Ni100: -80°C to +170°C 
Ni120 : -80°C~320°C 
Pt1000: -180°C to +800°C 
Ni1000: -80°C to +170°C 
JPt100: -180°C to +500°C 
LG-Ni1000: -50°C to +180°C 
Cu50: -50°C to +150°C 
Pt100: -292°F to +1,472°F 
Ni100: -112°F to +338°F 
Ni120: -112°F~608°F 
Pt1000: -292°F to +1,472°F 
Ni1000: -112°F to +338°F 
JPt100: -292°F to +932°F 
LG-Ni1000: -58°F to +356°F 
Cu50: -58°F to +302°F 
0–300 Ω 
0–3000 Ω
 
Maximum 
Measurable Range
*2
Ni100: -100°C to 180°C 
Pt1000: -200°C to 850°C 
Ni1000: -100°C to 180°C 
JPt100: -200°C to 510°C 
LG-Ni1000: -60°C to 200°C 
Cu50: -50°C to 150°C 
Pt100 : -328°F to 1,562°F 
Ni100: -148°F to 356°F 
Pt1000 : -328°F to 1,562°F 
Ni1000 : -148°F to 356°F 
JPt100 : -328°F to 950°F 
LG-Ni1000 : -76°F to 392°F 
Cu50 : -58°F to 302°F 
0–320 Ω 
0–3200 Ω 
Average function  Range: 1–100 
Self-diagnosis  Disconnection detection 
*1: If any of these limits are exceeded, device functionality should not be assumed, damage may occur 
and reliability may be affected. 
*2: If the to be measured temperature exceeds the upper/lower limit, it only shows the maximum / 
minimum value. 
 
  AS04TC-A / AS08TC-A 
Electrical specifications 
Number of analog 
AS04TC-A: four ; AS08TC-A: eight 
Applicable sensor 
Type J, K, R, S, T, E, N, B, C, U, L, TXK thermocouple;   
±
24 VDC (20.4 VDC–28.8 VDC) (-15% to +20%)
Removable terminal block
Overall accuracy 
25°C/77°F: The error is ±0.5% of the input within the range. 
-20 to +60°C/-4 to +140°F: The error is ±1% of the input within the range.
Resolution 
0.1°C / 0.1°F 
Isolation 
An analog circuit is isolated from a digital circuit by a digital integrated circuit, 
and the analog channels are isolated from one another by optocouplers. 
Isolation between a digital circuit and a ground: 500 VAC 
Isolation between an analog circuit and a ground: 500 VAC 
Isolation between an analog circuit and a digital circuit: 500 VAC 
Isolation between two group circuits: 500 VAC 
Isolation between the 24 VDC and a ground: 500 VAC 
Isolation between the analog channels: 120VAC 
AS04TC-A: 115g ; AS08TC-A: 125g 
   
Send Quote Requests to info@automatedpt.com
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Send Quote Requests to info@automatedpt.com 
Call +1(800)985-6929 To Order or Order Online At Deltaacdrives.com