Endress+Hauser NRF590 Kurzanleitung Seite 4

Exchange of the power supply
New design of instrument
The exchange requires the following tools
• Philips screw driver size 1 and 2
• Hexagonal key AF 3 mm
• Screwdriver
• Eventually a pair of tweezers
New design of the
display holder
2
Disassembly the power supply
1. Loosen the safety pin for the lid (AF 3 mm) approx. 4 turns.
2. Unscrew the lid (7 turns). Note:
Then, attempt once again to unscrew lid
3. Open cover of display holder.
4. Push on the cable´s retainer clips and unplug the cable.
5. Unscrew the 2 screws of the display holder to the electronics compartment and remove holder.
6. Lever out the power supply on both sides with a screwdriver (version 2).
The assembly is done in reverse order. Note the right position of cover (5) for the electronics compartment (see figure).
Adjustment or calibration is not necessary.
At last adjust the safety pin (1) so it is set over the lid and tighten the safety pin.
0 2 1
Any repair of a certified device has to be documented!
This includes stating the device serial number, date of repair, type of repair and name of the repair technician.
2
Power supply
4
3
If the lid is difficult to unscrew, unplug one of the cables from the cable gland to allow air to enter the housing.
.
Note: Don´t pull on the flat cable!
6
5
Safety pin
hexagonal key
AF 3 mm
KA586F/00/a2/09.07
1
Endress+Hauser Maulburg
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