Delta AH500 series Manual descargar pdf (Pagina 93)

AH500 Hardware Manual

Functional specifications

Analog-to-digital

conversion

Centigrade (°C) Fahrenheit (°F) Input impedance

Rated input range

Pt100: -180°C~800°C

Ni100: -80°C~170°C

Pt1000: -180°C~800°C

Ni1000: -80°C~170°C

Pt100: -292°F~1,472°F

Ni100: -112°F~338°F

Pt1000: -292°F~1,472°F

Ni1000: -112°F~338°F

0~300 Ω

Average function Range: 1~100

Self-diagnosis Disconnection detection

 AH08PTG-5A

Electrical specifications

Number of analog

inputs

Three-wire configuration: Pt100/Ni100/Pt1000/Ni1000 sensor, and 0~300 Ω

input impedance

Applicable sensor

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

The error is ±1°C of a Pt100/Pt1000/Ni1

00/Ni1000 sensor’s temperature.

Overall accuracy

The error is ±0.1% of a resistance in the range of 0 Ω to 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.

Four-wire/Two-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 a ground: 500 V DC

Isolation between an analog circuit and a 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 a ground: 500 V DC