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imc C-SERIES - Manual, Version 4 R 3 - 2018-10-19

109CS-5008-FD, CL-5016-FD

5.8 CS-7008-FD, CL-7016-FD

CS-7008-FD and CL-7016-FD are 8- and 16-channel universal measurement devices, respectively, with

sampling rates of up to 100 kHz per channel. They are especially well suited to frequently changing

measurement tasks. Practically every sensor- or signal type can be connected directly to any of the

measurement amplifier’s all-purpose channels. The input channels are differential and equipped with

per-channel signal conditioning including filters.

To supply external sensors or bridges the module is equipped with a sensor supply with an adjustable

supply. The analog channels supportsTEDS (Transducer Electronic Data Sheets (IEEE 1451)

The measurement inputs whose terminals are DSUB plugs (are for voltage, current, bridge, PT100 and

thermocouple measurements. In addition the use of an IEPE/ICP-expansion plug is possible. They are

non-isolated differential amplifiers. They share a common voltage supply for sensors and measurement

bridges.

Reference

Technical details: CS-7008-FD, CL-7016-FD analog inputs

5.8.1 Voltage measurement

Voltage: ±50 V to ±5 mV; DSUB-plug: ACC/DSUBM-UNI2

Within the voltage ranges ±50 V and ±20 V, a voltage divider is in effect; the resulting input impedance is

1 MΩ.

By contrast, in the voltage ranges ±10 V and ±5 mV, the input impedance is 20 MΩ. For the deactivated

device, the value is approx. 1 MΩ.

In the input ranges <20 V, the common mode voltage

must lie within the ±10 V range. The range is

reduced by half of the input voltage. The input configuration is differential and DC-coupled.

The common mode voltage is the arithmetic mean of the voltages at the inputs +IN and -IN, referenced to the

device ground. For instance, if the potential to ground is +10 V at +IN and +8 V at -IN, the common mode

voltage is +9 V.

Note

With the predecessor C-70xx: If the input signal level violates the negative measurement range

boundary, then the measurement readings are not limited to the maximum measurement range

boundary value. Instead, the measurement readings are displayed within the range corresponding to

the measurement range setting. This effect occurs in the measurement ranges 50/60 V, 10 V, 2/2.5 V

and 0.5 V.

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IMC C SERIES User Manual

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