Hach PAT700 DS, Basic User Manual

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Replace a fuse
D A N G E R
Fire hazard. Use the same type and current rating to replace fuses.
Fuse failure may be an indication that the instrument has a problem that requires service. Figure 10
shows the fuse location.
Item to collect: 1.25 A, 250 V EN60127 type T fuse
1. Toggle the power switch to off. Disconnect the instrument from the power outlet.
2. Use the supplied tool to open the display-side door.
3. Use a flat-blade screwdriver to remove the fuse holder.
4. Replace the fuse with a fuse of the same type and rating.
5. Use the flat-blade screwdriver to install the fuse holder.
6. Close the display-side door with the supplied tool. Make sure that the door is tightly closed to
keep the enclosure rating and the safety protections.
7. Connect the instrument to the power outlet. Toggle the power switch to on.
Figure 10 Fuse location
1 Fuse (2x)
Drain the instrument
To prepare the instrument for storage or shipment, remove all water from the instrument. Water left in
the instrument may freeze, expand and cause instrument damage. Water in the measurement cell
may contain contaminants that will cause damage to instrument components.
To drain all water from the instrument:
1. Remove the instrument from service.
2. Disconnect the instrument from the water system.
3. Set the power switch to on.
4. Push << to show the sliding menu.
5. Select Diagnostics>Tests>Plumbing Test .
6. From the drop-down menu, select Flow through cell with pump.
7. Let the test continue until all of the water has drained from the instrument.
8. When the water flow stops, push the green arrow to stop the plumbing test.
22 English