8672 datasheet(13/37 Pages) PHOENIX

13 / 37 page

AXL F UTH4 1H

8672_en_02

PHOENIX CONTACT

5.10

Technical data for the ±5 V DC voltage input

This input is used to acquire additional voltage signals.

Connect a signal converter to the input. This can be used to

acquire any AC or DC currents which are converted by the

converter into an electrically isolated ±5 V signal. This ±5 V

signal is processed by the module.

Connection example: Figure 13

Tolerances of the voltage input

Typical tolerance values are measured application values

that are based on the maximum variance of all test objects.

The maximum tolerance values represent the worst-case

measurement inaccuracy. They contain the theoretical max-

imum possible tolerances in the corresponding measuring

ranges as well as the theoretical maximum possible toler-

ances of the calibration and test equipment. The data is valid

for at least 24 months from delivery of the module. Thereaf-

ter the modules can be recalibrated by the manufacturer at

any time.

Use an isolating amplifier to decouple from the field the sen-

sor signals which go to the sensor input. The MCR range

from Phoenix Contact offers various solutions (see also con-

nection example "Universal AC and DC current acquisition

by means of combination with a current transducer").

5.11

Cycle times

±5 V voltage input

Connection method

2-wire connection

Measuring range

-5 V ... +5 V

Format

IB IL

Resolution

16-bit

Quantization

166.7 µV/LSB

Filter time

120 ms

Input resistance

typ. 5 MΩ

No.

Tem-

pera-

ture

Absolute

Relative

Typ.

Max.

Typ.

Max.

1Toler-

ance

+25°C

±1 mV

±10 mV

±0.02%

±0.20 %

Toler-

ance

-25 °C ...

+60 °C

±2.3 mV

±15 mV

±0.05 %

±0.30%

3Drift

-25 °C ...

+60 °C

±8 ppm/K

±20 ppm/K

Filter time

Channel conversion time for TC opera-

tion with internal compensation

120 ms

100 ms

60 ms

40 ms

Filter time

Typical scan repeat time for all four

measuring channels

TC operation with internal cold junc-

tion compensation

120 ms

962 ms

100 ms

880 ms

60 ms

720 ms

40 ms

640 ms

Filter time

Typical scan repeat time for a measur-

ing channel

TC operation with internal cold junc-

tion compensation; channels 2 ... 4

deactivated

120 ms

600 ms

100 ms

580 ms

60 ms

540 ms

40 ms

520 ms

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