Stratos Multi E401N
27
3.2 Electrical Installation
WARNING! The transmitter does not have a power switch. An appropriately arranged and acces-
sible disconnecting device for the transmitter must be present in the system installation. The discon-
necting device must disconnect all non-grounded, current-carrying wires and be labeled such that the
associated transmitter can be identified.
Before commencing with the installation, make sure that all lines to be connected are de-energized.
CAUTION! Ensure the suitable IP protection. IP66/IP67 can only be achieved with correctly
installed cable glands and screwed housing. Observe the cable diameters and tightening torques.
Only use original accessories and spare parts.
Note: Strip the insulation from the wires using a suitable tool to prevent damage. Only use cables that
are rated for use at 75°C / 167°F or higher.
01. Wire the current outputs. Deactivate unused current outputs in the parameter settings or use
jumpers.
02. Wire the relay contacts and inputs if necessary.
03. Connect the power supply (for ratings, see specifications).
04. When measuring with analog sensors: Insert the measuring module into the module slot.
05. Connect the sensor.
06. Check whether all connections are correctly wired.
07. Before switching on the power supply, make sure its voltage is within the specified range.
08. Switch on the power supply.
CAUTION! Incorrect parameter settings, calibration, and adjustments can result in incorrect
outputs. For this reason, Stratos Multi must be commissioned by a specialist, who will also set the
parameters, calibrate and adjust the device.
See also
➜ Channel II Wiring Examples, p. 168
➜ Package Contents and Product Identification, p. 17
3.2.1 Relay Contacts: Protective Wiring
Relay contacts are subject to electrical erosion. Especially with inductive and capacitive loads,
the service life of the contacts will be reduced. For suppression of sparks and arcing, components such
as RC combinations, nonlinear resistors, series resistors, and diodes should be used.
NOTICE! Make sure that the maximum ratings of the relay contacts are not exceeded, even during
switching. ➜ Power, p. 155
Information Concerning Relay Contacts
As delivered, the relay contacts are suitable for low signal currents (down to approx. 1 mA). If currents
above approx. 100mA are switched, the gold plating is destroyed during the switching process.
After that, the contacts will not reliably switch low currents.
Configuration of relay contacts ➜ Relay Contacts, p. 57
Wiring of relay contacts ➜ Terminal Assignments, p. 30
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