Panel Mounting; Wall Mounting; Mains Power Connection - Hach 9240 Manual Básico Del Usuario

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.
It is extremely important to respect this gap of 460 mm to avoid bending the cabinet out of shape while fitting.

Mains power connection

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
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.
4. Unscrew the cable gland nut, pass the power cable through it, and then up through the cable
gland and into the transmitter (No. 2). Screw back the cable gland nut to secure the power cable.
5. Open the transmitter front door by unscrewing the four holding screws.
6. Swing open the door (it is hinged to the left) to reveal the inside of the transmitter.
7. Remove the metallic shielding plate (No. 1) protecting access to the main board.
8. Remove the power supply connector (No. 3) and note where the earth, neutral and live (E, N, L)
must be connected.
9. Connect the power supply cables to the connector.
8 English
C A U T I O N
W A R N I N G
Figure 1 on page 7) by unscrewing the