Beckhoff EL3681 Documentation page 22

Product description
• For AC voltage measurements may the DC component may not exceed 150 V (sine voltage).
• The peak voltage (relative to the COM terminal) may not exceed 600 V.
Internal resistance
Measurement type
DC
4) 5)
AC
Table 2: Internal resistances
Fuse
Notes on replacing the fuse can be found in section Accessories [} 169].
Default Setting
The factory setting for the multimeter terminal enables voltages up to 300 V
without additional settings. The Autorange function is active and selects the measuring range automatically.
The measured value is displayed with 1 bit/µV, i.e. no adjustment is required. Fig. Display of measured value
in TwinCAT shows an example for measured values in the TwinCAT tree. In the example the value
10448400 corresponds to a voltage of 10.448400 V
Fig. 6: Display of measured value in TwinCAT
The terminal is supplied with a sample program [} 164] that enables the process data of the EL3681 to be
modified and the terminal to be re-parameterized.
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Measuring range
300 mV - 300 V
100 mA - 1 A
10 A
300 mV - 300 V
100 mA - 1 A
10 A
Version: 3.0
Internal resistance
12.5 MΩ
0.2 Ω
3 mΩ
1 MΩ, approx. 33 pF
0.2 Ω
3 mΩ
to be measured directly
DC
EL3681