Hach-Lange POLYMETRON 9240 Basic User Manual - Manual (Page 7)

C A U T I O N
Personal injury hazard. Instruments or components are heavy. Use assistance to install or move. Make sure that
the wall mounting is able to hold 4 times the weight of the equipment.
C A U T I O N
Wherever the analyzer is to be mounted, it is important to note that it must be placed in an upright position with
the transmitter at the top. It is recommended to use a spirit level to ensure that the analyzer is correctly positioned
and not leaning to one side or forward. This is essential to guarantee the accuracy of the analyzer.
Panel mounting
Mount the analyzer using the fixation holes located around the outside of the analyzer.
Wall mounting
Use the wall mounting kit to fix the instrument to the wall. The distance between the two pieces is
460 mm.
C A U T I O N
It is extremely important to respect this gap of 460 mm to avoid bending the cabinet out of shape while fitting.
Mains power connection
W A R N I N G
No intervention should be made on the instrument without first switching off the power.
The electrical installation should be carried out by duly qualified personnel. A supply voltage of
100-240 VAC is acceptable without changing the configuration. The power supply terminals can be
removed from their housing to make connection easier.
For safety reasons, it is imperative to respect the working procedure below:
• Use a three-wire power cable (live + neutral + earth), sized for supplying the required power.
• The instrument should be connected to the mains via a circuit-breaker or fuse whose value should
be less or equal to 20 A. It should be located in proximity and be identified. This connection should
cut-off the live and the neutral when electrical problems occur or when the user wishes to
intervene inside the instrument. On the other hand, the earth conductor should always be
connected.
The main cabinet should be open with access to the interior.
1. Pass the power cable through the cable gland located at the back left of the bottom of the
cabinet.
2. Open the back of the local controller box (No. 11 in Figure 1 on page 6) by unscrewing the
6 screws.
3. Unscrew the two holding screws on the upper left and right side of the box, and allow it to rotate
down to reveal the back of the transmitter. The cable gland for the power cable is located left and
nearest to you.
English 7