Milliampere Measurement; Milliampere Measurement With 24 V Power Supply - WIKA Obsolete CEP1000 Manual De Instrucciones

6. Commissioning, operation

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.
CEP 1000
MEASURE
MODE
%ERROR
LOOPPWR
Calibration Line
Figure 5: Measurement in the range of 4 ... 20 mA
The measuring mode with separate power supply can be activated for
the option measuring in the milliampere range.
WIKA operating instructions, model CEP1000
4 ... 20 mA
mA
Maximum input signal: 24 mA
To measure the output signal of a two-wire sensor use
MAX
AUTO
the option measurement with separate power supply.
MIN
25%
( + )
Instrument with an
output for 4 ... 20 mA
( - )
GB
17