Dräger PEX 3000 Manual Del Usuario página 36

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Operation
CAUTION
Blank cables must not stick out of the spring terminals. The method of explosion
protection during maintenance is based on the condition that it is not possible to
touch blank cable parts with a probe of 2.5 mm diameter (definition of IP 30).
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Handling the spring terminal clamps in the transmitter
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1. Insert the screwdriver (width 3 mm) or supplied special tool (see also order
list, (see "Order list", page 46)) into the terminal.
2. Push the spring down. This opens the lower part of the terminal. Insert the
stripped cable end or ferrule (if necessary) into the lower part.
3. Remove the screwdriver or special tool from the upper part. The electrical
connection is established by the force of the spring.
CAUTION
The spring terminal clamps are connected to the 4 to 20 mA converter.
Improper handling might damage the spring terminal clamps so that the
complete converter would have to be replaced.
5.3 Commissioning the transmitter
– Open the housing lid of the transmitter.
WARNING
Dust explosion protection is not ensured after having opened the transmitter's
housing. The Ex area has to be temporarily de-classified, if necessary!
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