E2218
Rev 14.05.2021
Make certain that the cable gland is properly tightened to ensure the conformity to IP65
protection class.
The screwless quick connect spring terminals on the E2218 are suitable for a wide range
of wires with cross-section 0,2...1,5 mm
2
. The recommended wire stripping length is 8...9
mm. Push the spring loaded terminal lever, insert the wire end into the terminal hole and
release the lever.
Use twisted pair cable, e.g. LiYY TP 2×2×0,5 mm2 or CAT 5, to connect the device to the
RS485 network. Use one pair for A and B wires and the second pair for common 0V and
power +U wires. to connect the transmitter to the Fieldbus network.polarity must be
respected when connecting to an external RS485 network.
Overall length of all connections via RS485 interface should not exceed 1200 m.
Place the lid back and tighten it with the four screws.
Both analog outputs can be independently changed between 4-20 mA and 0-10 V type
using jumpers J1 (OUT1) and J2 (OUT2). By closing pins on a specific jumper the related
output is 0-10 V, with an open jumper the output is 4-20 mA. Power restart is required after
changing the position of the jumpers.
By default the output OUT1 is assigned to relative humidity with default scale 0-100 %RH.
By default the output OUT2 is assigned to temperature with default scale 0-100 °C.
The output assignments and scales can be changed by Modbus commands.
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