Ch a pt er 5 Tem per at ur e M eas ur em ent Mo d u l e A H 04 PT / AH 0 8 PT G5 - 3 9(4) High accuracyThe 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 stabilityHigh-level analog parts are used to strengthen the function of automatically filtering 50/60/400Hz signals, and the function of suppressing noise.(6) Disconnection detectionWhen a sensor is disconnected, AH08PTG-5A gives an alarm or a warning.(7) PID controlAn 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 inHWCONFIG to complete hardware configuration without spending time writing a program to setregisters corresponding to functions.5.2.3 SpecificationsElectrical specificationsNumber of analoginputs 8Applicable sensorThree-wire configuration: Pt100/Ni100/Pt1000/Ni1000 sensor, and0~300 Ω input impedanceTwo-wire/Four-wire configuration: Pt100/Ni100/Pt1000/Ni1000 sensor,and 0~300 Ω input impedancePt100: DIN 43760-1980 JIS C1604-1989; 100 Ω 3850 PPM/°CPt1000: DIN EN60751; 1 kΩ 3850 PPM/°CNi100/Ni1000: DIN 43760Supply voltage 24 V DC (20.4 V DC~28.8 V DC) (-15%~+20%)Connector type Removable terminal blockOverall accuracyThe error allowed is ±1°C of a Pt100/Pt1000/Ni100/Ni1000 sensor’stemperature.The error allowed is ±0.1% of 300 Ω.Conversion time Quick mode:Four-wire/Two-wire configuration: 20 ms/channelThree-wire configuration: 200 ms/channel General mode: A conversion time will be gotten after the conversiontime of the two channels in a group is added up.Two-wire/Four-wire configuration: 200 ms/channelThree-wire configuration: 400 ms/channelIsolationAn analog circuit is isolated from a digital circuit by a digital integratedcircuit, and the analog channels are isolated from one another byoptocouplers.Isolation between a digital circuit and the ground: 500 V DCIsolation between an analog circuit and the ground: 500 V DCIsolation between an analog circuit and a digital circuit: 500 V DCIsolation between two group circuits: 500 V DCIsolation between the 24 V DC and the ground: 500 V DC
