Reference Manual

Table Of Contents

Draft

Maintenance 27Q3 Dosing Module

6.1.3 Cleaning the weighing chamber

The dosing module is in the upper-most position.

The dosing head is removed.

The sealing insert is removed.

The draft shield is removed.

1 Tilt the top panel (1) upwards and remove.

2 Remove any adapter holder or ErgoClip, the weighing

pan, and the drip tray.

3 Clean the weighing chamber.

WARNING: Damage to the covering strip. The

covering strip is delicate and must be handled

with care.

Wipe the covering strip (2) gently using vertical movements.

4 Reassemble the balance.

5 Commission the balance.

For more details about cleaning and commissioning the balance, see "Maintenance" in the Reference Manual

(RM) of the balance.

6.1.4 Cleaning powder dosing heads

Powder dosing heads are designed to be used with a unique substance. METTLER TOLEDO does not

recommend cleaning them. When dosing a different powder, use a new dosing head to avoid contamination.

6.1.5 Cleaning the liquid dosing elements

Cleaning the suction filter

1 Once a week, check visually that the suction filter is clean. If necessary, rinse the suction filter with solvent

using the Purge function or replace it.

2 At least once a year, change suction filter. Maintenance interval depends on the liquid used.

Cleaning the liquid dosing head

The liquid dosing head can be rinsed/purged by letting a large quantity of solvent (or another liquid) run

through it. Use the Purge function. See the Reference Manual (RM) of the XPR balance.

If purging is not enough, clean the liquid dosing head as follows.

CAUTION

Injury due to splashing liquids

If the pressure in the bottle is not released, liquid might splash when removing the micro

dosing valve, opening the bottle, or removing the liquid tube.

− Always release pressure before removing the micro dosing valve, opening the bottle, or

removing the liquid tube.