PD 642 Analogue Input Module
The PD 642 is an analogue input module
with four voltage input (0-100 mV) channels.
The four input channels can be
configured individually for either 0-100 mV or thermocouple temperature
sensor input.
The PD 642 provides linearization for
the following types of thermocouple transducers: Type R, S, B, J, T, E, K
and N.
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PD 642 Block Schematic
Channel Structure
The PD 642 consists of 5 channels as
shown in the table.
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Power supply
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Power supply DC:
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Nom
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24.0 V
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min.
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18.0 V
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max.
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32.0 V
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Ripple voltage:
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max.
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5 %
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Power consumption @ 24V DC
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Operation:
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max.
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25 mA
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Current at power up:
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max.
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60 mA
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Analogue input (Ch. 1- 4)
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Signal type:
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Voltage (0-100 mV)
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Input impedance:
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> 5 MΩ
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Calibration error:
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@ Tamb. 20 °C
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max. +/- 0.1 % of fullscale
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Ambient temperature coefficient Tc:
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max.
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+/- 100 ppm / °C
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Ambient temperature influence (ΔV):
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Tc x (Tambient – 20) x input
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Resolution:
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typ.
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20 µV
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Update time:
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fixed
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0.8 s
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Voltage to temperature conversion
for thermo couples
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Supported IEC 584-1 thermo couple
types:
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R, S, B, J, T, E, K, N
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(See
data sheet for thermocouple measurements)
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Filter for analogue input signal
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Type:
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4th order low pass
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Time constant:
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configurable
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3.0 s – 50.0 s
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Gain error:
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max.
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+/- 0.1 %
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Ambient temperature range
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Operating temperature:
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-25 °C – 70 °C
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Storage temperature:
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-40 °C – 85 °C
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Humidity
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Relative humidity:
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max.
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95 %
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EMC
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Immunity:
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EN 61000-6-2
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Emission:
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EN 61000-6-3
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Vibration
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Test method:
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IEC 60068-2-6
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Frequency / amplitude:
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2-10 Hz: +/- 5.0 mm
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10-100 Hz: +/- 2g
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Sweep rate:
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max. 1 octave/min
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Number of axes:
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3 mutually
perpendicular
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Related topics
Ordering Information
Wiring diagrams
LED function
Base Module
overview
Application notes
PD 640 Analogue I/O Module (Current)
PD 641 Analogue Input Module
(Temperature)
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