2
1.1 Safety instructions and warnings
Only use this display
– in a way according to its intended
purpose
– if its technical condition is perfect
– adhering to the operating
instructions and the general
safety instructions.
1.2 General safety instructions
1. Before carrying out any installation or mainte-
nance work, make sure that the power supply
of the digital display is switched off.
2. Only use this digital display in a way according
to its intended purpose:
f its technical condition is perfect.
Adhering to the operating instructions and the
general safety instructions.
3. Adhere to country or user specific regulations.
4. The digital display is not intended for use in
areas with risks of explosion and in the
branches excluded by the standard EN 61010
Part 1.
5. The digital display shall only operated if it has
been correctly mounted in a panel, in accor-
dance with the chapter “Main technical fea-
tures”.
1.4 Description
The 52U
is a multipurpose device.
Depending on the programmed basic function,
the device operates like
• an
electronic
totalizer
and frequency meter
(see page
3
)
• an
electronic display counter with 2
totalizing
ranges
(see page
5
)
• an
electronic
totalizer
and time meter
(see page
7
)
• an
electronic time meter with 2 time ranges
(see page
10
)
2. Setting of the operating parameters
a. Press both front side keys keys and switch on
the supply voltage or, if the supply voltage is
already on, press both keys simultaneously
during 5 s.
b. The display shows
c. After releasing the keys, the display shows
c1.Hold the left key pressed and press the right
key to leave the programming operation.
c2.Press the right key to switch to
.
d. Hold the left key pressed and press the right
key to switch to the first parameter.
1.3 Use according to the intended
purpose
The digital display may be used only as a panel-
mounted device. Applications of this product may
be found in industrial processes and controls, in
manufacturing lines for the metal, wood, plastics,
paper, glass, textile and other processing indus-
tries.
Over-voltages at the terminals of the digital dis-
play must be kept within the limits in Category II
If the digital display is used to monitor machines
or processes in which, in case of a failure of the
device or an error made by the operator, there
might be risks of damaging the machine or caus-
ing accidents to the operators, it is your responsi-
bility to take appropriate safety measures.
!
