WIKA DI35 - Manual (Page 6)

2 Safety
6 WIKA operating instructions digital indicator DI35-M
Please read the following safety advice and the assembly before installation
and keep it for future reference.
If the instrument is transported from a cold into a warm environment, the
formation of condensation may result in the instrument malfunctioning. Before
putting it back into operation, wait for the instrument temperature and the
room temperature to equalise.
Notes on installation
 There must be no magnetic or electric fields in the vicinity of the device,
e.g. due to transformers, mobile phones or electrostatic discharge.
 Do not install inductive consumers (relays, solenoid valves etc.) near
the device and suppress any interference with the aid of RC spark
extinguishing combinations or free-wheeling diodes.
 Keep input, output and supply lines separate from one another and do
not lay them parallel with each other. Position “go” and “return lines”
next to one another. Where possible use twisted pair. So, you receive
best measuring results.
 Screen off and twist sensor lines. Do not lay current-carrying lines in the
vicinity. Connect the screening on one side on a suitable potential
equaliser (normally signal ground).
 Do not install several devices immediately above one another or in an
extremely thermal isolated housing. Due to the internal heat dissipation
of the devices, the recommended ambient temperature can be
excessed.
 The device is not suitable for installation in areas where there is a risk
of explosion.
 Any electrical connection deviating from the connection diagram can
endanger human life and/or can destroy the equipment.
 The terminal area of the devices is part of the service. Here electrostatic
discharge needs to be avoided. Attention! High voltages can cause
dangerous body currents.
 Galvanic insulated potentials within one complex need to be placed on
a appropriate point (normally earth or machines ground). So, a lower
disturbance sensibility against impacted energy can be reached and
dangerous potentials, that can occur on long lines or due to faulty
wiring, can be avoided.
 The fuse rating of the supply voltage should not exceed a value of 6A
N.B. fuse.
The manufacturer shall not be liable for claims of any type based on
operation contrary to the intended use.