WIKA CEP1000 - Manual (Page 17)

17 WIKA operating instructions, model CEP1000
11570351.02 10/2010 GB/D/F/E/I
GB
6. Commissioning, operation
( + )
( - )
LOOPPWR
CEP 1000
MODE
%ERROR
AUTO MAX
25%
MIN
Calibration Line
MEASURE
mA
6.2.3 Milliampere measurement
Figure 5 shows the way the CEP1000 must be connected to carry out a measurement in
a circuit for 4 ... 20 mA. During this application the instrument just measures the current
in the circuit and displays it on the main display in mA. The lower (smaller) scale range
indicates the percentage of current for the measuring range 4 ... 20 mA.
6.2.4 Milliampere measurement with 24 V power supply
For this case figure 5 also shows the correct connection. However, in this case a 2-wire
transmitter is tested, it requires an external power supply for the output current. For this
application the instrument supplies the circuit with an operating voltage of 24 V and at
the same time measures the emerging current. To enable the function with separate
power supply, press the "LOOP PWR" key if the option milliampere measurement is
selected.
The measuring mode with separate power supply can be activated for
the option measuring in the milliampere range.
Instrument with an
output for 4 ... 20 mA
4 ... 20 mA
Maximum input signal: 24 mA
To measure the output signal of a two-wire sensor use
the option measurement with separate power supply.
Figure 5: Measurement in the range of 4 ... 20 mA