WIKA CEP1000 - Manual (Page 15)

15 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
SOURCE
mA
6.2 Basic operating modes
The CEP1000 has 4 operating modes for the mA range and one operating mode for
voltage measurement. The following text and figures explain different operating modes.
6.2.1 Milliampere source
Figure 3 shows a typical application, for which the CEP1000 is used as a source of
current for the range from 4 ... 20 mA for the instrument to be tested.
1) Turn on the instrument. As a standard the operating mode source of current in the
mA range is set.
2) Connect the instrument to be calibrated.
For the instrument to function as a source of current, the circuit must be
closed. In case of an interrupted circuit the LCD display "OL" is blinking
and indicating an overload or an interruption of the circuit.
Instrument with an input
of 4 ... 20 mA
Max. load: 1200 Ω without HART™
950 Ω with HART™
Figure 3 - Current source for 4 ... 20 mA
4 ... 20 mA