Hach LANGE ULTRATURB sc, Руководство по эксплуатации

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Maintenance
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6.6 Changing fuses
In the controller there are 2 fuses that the user can change. Faulty fuses are
indicative of problematic ambient conditions. Only qualified personnel should
determine the cause and change the fuse. Figure 6-28 shows the exact position of
the fuses that you can change as follows:
1. Isolate from the power supply (including the relay contacts if they are
connected to a power supply).
2. Open the hinged controller cover by completely undoing the four captive bolts.
3. Remove the main voltage protective cover; first press the lever up until it
engages and then remove the protective cover upwards.
4. Remove the old fuses and replace with fuses of the same type and rating (T,
1.6 A, 250 V).
5. Re-fit the protective cover.
6. Close the front flap and hand tighten the bolts.
7. Re-connect to the power supply.
Fig. 6-28 Changing fuses
1. Fuses F1 and F2, T, 1.6 A, 250 V, slow blow
NC NC NC COM COM COM NO
F1 F2
NO NO
RELAY C RELAY B RELAY B RELAY A
J1
J2
J4
NETWORK
INTERFACE
CARD
J3
J5
J6
U5
U9
S1
Disconnect
Power
1
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