Delta AH500 - Specifications

Chapter 5 Temperature Measurement Module AH04PT/AH08PTG
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(4) High accuracy
The error is ±1°C of a Pt100/Pt1000/Ni100/Ni1000 sensor’s temperature.
The error is ±0.1% of a resistance in the range of 0 Ω to 300 Ω.
(5) High stability
High-level analog parts are used to strengthen the function of automatically filtering 50/60/400
Hz signals, and the function of suppressing noise.
(6) Disconnection detection
When a sensor is disconnected, AH08PTG-5A gives an alarm or a warning.
(7) PID control
An object can be maintained at a desired temperature through a PID control action.
(8) A module can be set by means of utility software.
HWCONFIG is built-in utility software in ISPSoft. Users can set modes and parameters in
HWCONFIG to complete hardware configuration without spending time writing a program to set
registers corresponding to functions.
5.2.3 Specifications
Electrical specifications
Number of analog
inputs
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 impedance
Pt100: DIN 43760-1980 JIS C1604-1989; 100 Ω 3850 PPM/°C
Pt1000: DIN EN60751; 1 kΩ 3850 PPM/°C
Ni100/Ni1000: DIN 43760
Supply voltage
24 V DC (20.4 V DC~28.8 V DC) (-15%~+20%)
Connector type
Removable terminal block
Overall accuracy
The error allowed is ±1°C of a Pt100/Pt1000/Ni100/Ni1000 sensor’s
temperature.
The error allowed is ±0.1% of 300 Ω.
Conversion time
 Quick mode:
Four-wire/Two-wire configuration: 20 ms/channel
Three-wire configuration: 200 ms/channel
 General mode: A conversion time will be gotten after the conversion
time of the two channels in a group is added up.
Two-wire/Four-wire configuration: 200 ms/channel
Three-wire configuration: 400 ms/channel
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 the ground: 500 V DC
Isolation between an analog circuit and the ground: 500 V DC
Isolation between an analog circuit and a digital circuit: 500 V DC
Isolation between two group circuits: 500 V DC
Isolation between the 24 V DC and the ground: 500 V DC