Hach IO9000, User Instructions

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Maintenance
D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Clean the instrument
Clean the exterior of the instrument with a moist cloth and a mild soap solution and then wipe the
instrument dry.
Replace a fuse
D A N G E R
Electrocution hazard. Remove all power from the instrument and relay connections before this
maintenance task is started.
D A N G E R
Fire hazard. Use the same type and current rating to replace fuses.
Item to collect: Fuse, 5 x 20 mm, 1 A, 250 V, fast
Replace a blown fuse for correct operation. Refer to Wiring overview on page 10 for the fuse
location.
1. Remove all power to the relay connections.
2. Remove the covers. Refer to Remove the covers on page 10.
3. Pull the blown fuse out of the fuse holder.
4. Push a new fuse into the fuse holder.
5. Install the covers.
Replacement parts
W A R N I N G
Personal injury hazard. Use of non-approved parts may cause personal injury, damage to the
instrument or equipment malfunction. The replacement parts in this section are approved by the
manufacturer.
Note: Product and Article numbers may vary for some selling regions. Contact the appropriate distributor or refer to
the company website for contact information.
Description Item no.
Fuse, 5 x 20mm, 1 A, 250 V, fast 180003201
Cable strain relief, 4.3 to 11.4 mm (0.17 to 0.45 in.) cable 5202500
Washer, sealing, ½-in. NPT 1033814
Nut, Nylon, Jam, ½-14, NPT 8774
18 English