WIKA DI25 - Handbuch (Seite 14)

14 WIKA operating instructions digital indicator, model DI25
14076218.01 12/2013 GB/D
GB
3. Specifications / 4. Design and function
No. Designation Description
1 PV Actual value display The actual value (PV = process variable) is
displayed with a red LED display.
2 SV Setting value display Shows the setting values (SV) with a green LED
display.
3 A1 Display alarm output 1 The red LED lights up when alarm output 1 is ON.
4 A2 Display alarm output 2 The red LED lights up when alarm output 2 is ON.
5 A3 Display alarm output 3 The red LED lights up when alarm output 3 is ON.
6 HOLD Diplay HOLD function The yellow LED lights up when the HOLD function
is activated.
7 A1 Display alarm value, alarm output 1 The green LED lights up when the SV display
shows the alarm value of alarm 1.
8 A2 Display alarm value, alarm output 2 The green LED lights up when the SV display
shows the alarm value of alarm 2.
9 A3 Display alarm value, alarm output 3 The green LED lights up when the SV display
shows the alarm value of alarm 3.
10 △ Key Increases a numerical value or selects a setting
parameter.
11 ▽ Key Decreases a numerical value or selects a setting
parameter.
12 MODE key Selects the setting mode or stores the selected
setting parameter.
13 FAST key The setting values change faster if the FAST key is
pressed together with the △ or ▽ key.
For further specifications see WIKA data sheet AC 80.02 and the order documentation.
4. Design and function
4.1 Short description
The digital indicator DI25 is a multi-functional digital indicator for a wide range of
measuring requirements. The multi-function input has 18 different input configurations,
which can be selected via the rear connections and also by selection of the appropriate
input signal within the instrument configuration. This way it is possible
to connect transmitters with current or voltage signals, and both resistance thermo-
meters or thermocouples to the same instrument.
The measured value can be retransmitted for further processing via an analogue actual
value 4 ... 20 mA output (standard) or via an RS-485 serial interface (optional). Other
analogue actual-value output signals are also available as options. The basic version of
the DI25 indicator features three alarm outputs. Instruments with the optional 24 V trans-
mitter power supply have two alarm outputs available.
With the high ingress protection of the fascia (IP 66), the DI25 digital indicator can also
be used under extreme operating conditions. All configuration and programming can be
carried out through the front-panel keys.