APPLICATION
The PD 643 is an analogue input module with one Pt-100/Pt-1000/thermocouple/ 0-100 mV input channel and two thermocouple/0-100 mV input channels. All inputs can be configured for thermocouple/0-100 mV sensor input. A Pt-100 / Pt-1000 temperature sensor can be connected to channel 1 and may be used as a reference temperature for the thermocouple sensors connected to channel 2 and 3. The thermocouple inputs are floating. The PD 643 provides linearization for the following types of thermocouple transducers: Type R, S, B, J, T, E, K and N.
The PD 643 is used with a BM 013 Base module.
A PD 991 Pt-100 sensor can be very useful if channel 1 is to be used as a temperature reference for thermocouple sensors connected to the channels 2 and 3.
SPECIFICATIONS
Power Specifications
Power Supply DC: nom. 24.0 V, min. 18.0 V, max. 32.0 V
Ripple: max. 5%
Power consumption @ 24V DC
Operation: max. 25 mA
Current at power up: max. 60 mA
Analogue input (Ch. 1- 3)
Signal type: Thermocouple
Input impedance: > 5 MΩ
Calibration error: @ Tamb. 20 °C max. +/- 0.1 % of fullscale
Ambient temperature coefficient Tc: max.+/- 100 ppm / °C
Ambient temperature influence (ΔV): Tc x (Tambient – 20) x input
Resolution: typ. 20 µV
Update time: fixed 0.8 s
Voltage to temperature conversion for thermocouples
Supported IEC 584-1 thermocouple types:R, S, B, J, T, E, K, N (See data sheet for thermocouple measurements)
Filter for analogue input signal
Type: 4th order low pass
Time constant: configurable 3.0 s – 50.0 s
Gain error: max. +/- 0.1 %
Analogue input (Ch. 1 – 3)
Signal type: Pt-100 / Pt-1000
Connection: 4-wire / 2-wire
Update time: Fixed 2.4 s
Input temperature range: Pt-100 -100 °C → +600 °C, Pt-1000 -100 °C → +200 °C
Ambient temperature coefficient Tc: max. ± 15 ppm / °C
Ambient temperature influence (ΔT): Tc x (Tambient – 20) x (Tsensor + 273)
Pt-100 Data (excluding sensor)
Calibration error: @ Tamb. 20 °C max. ± 0.1 °C
Resolution: typ. 0.05 °C
Measuring current: max. 500 µA
Pt-1000 Data (excluding sensor)
Calibration error: @ Tamb. 20 °C max. ± 0.2 °C
Resolution: typ. 0.2 °C
Measuring current: max. 50 µA
Environmental Conditions
Ambient Temperature
Operating temperature: -25 °C – 70 °C
Storage temperature: -40 °C – 85 °C
Humidity
Relative humidity: max. 95%
Approvals
EMC EN61000-6-2, EN61000-6-3
Vibration IEC 60068-2-6
Frequency range: 2-100 Hz
Frequency / amplitude: 2-10 Hz: +/- 5.0 mm
10-100 Hz: +/- 2g
Sweep rate: max. 1 octave/min
Number of axes: 3 mutually perpendicular
