Chapter 3 Product Specifications
3-91
3.8 Temperature Measurement Modules
3.8.1 General Specifications
AH04PT-5A
Electrical specifications
Number of analog
4
Applicable sensor
Three-wire configuration: Pt100/Ni100/Pt1000/Ni1000 sensor, and 0~300 Ω input
impedance
Two-wire/Four-wire configuration: Pt100/Ni100/Pt1000/Ni1000 sensor, and 0~300 Ω input
impedance
Pt100: DIN 43760-1980 JIS C1604-1989; 100 Ω 3850 PPM/°C
Pt1000: DIN EN60751; 1 kΩ 3850 PPM/°C
Supply voltage
24 VDC (20.4 VDC~28.8 VDC) (-15%~+20%)
Overall accuracy
25°C/77°F: The error is ±0.5% of the input within the range
-20~60°C/-4~140°F: The error is
±
1% of the input within the range
Conversion time
Two-wire/Four-wire configuration: 150 ms/channel
Three-wire configuration: 300 ms/channel
Isolation
An analog circuit is isolated from a digital circuit by a digital integrated circuit/an
optocoupler, and the analog channels are isolated from one another by optocouplers.
Isolation between a digital circuit and a ground: 500 VDC
Isolation between an analog circuit and a ground: 500 VDC
Isolation between an analog circuit and a digital circuit: 500 VDC
Isolation between the 24 VDC and a ground: 500 VDC
Functional specifications
Analog-to-digital
Centigrade (°C) Fahrenheit (°F) Input impedance
Rated input range
Pt100: -180°C~800°C
Ni100: -80°C~170°C
Pt1000: -180°C~800°C
Pt100: -292°F~1,472°F
Ni100: -112°F~338°F
Pt1000: -292°F~1,472°F
0~300 Ω
Range: 1~100
Self-diagnosis
Disconnection detection
AH08PTG-5A
Electrical specifications
8
Applicable sensor
Three-wire configuration: Pt100/Ni100/Pt1000/Ni1000 sensor, and 0~300 Ω input
impedance
Two-wire/Four-wire configuration: Pt100/Ni100/Pt1000/Ni1000 sensor, and 0~300 Ω input