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2.7
Exchangeable head (WA)
17
16
15
14
Fig. 9
8) TZ 2003 - drying tube
9) TZ 3802 - threaded cap with borehole GL 45, incl. adapter with 2 openings for drying tube and suction hose
10) TZ 3873 - dosing hose without dosing tip and holding bracket, or
TZ 3874 - dosing hose with dosing tip and holding bracket
11) TZ 3803 - 1 litre reagent bottle, brown
12) TZ 3900 - UV protection
13) TZ 1507 - plastic drip-down tubule
14) TZ 3000 - 3/2-way valve
15) TZ 3801 - valve cover lid
16) TZ 3872 - connection hose
17) TZ 3871 - suction hose
Installation of the Interchangeable Unit
2.7.1
Fig. 9 shows a completely assembled interchangeable unit.
1. Remove the valve with the attached hoses from the pack, and then push it on the valve support until it
snaps in position.
2. Slip on the valve cover lid on the valve as is shown (Fig. 9).
3. Insert the TZ 3872 connection hose in the threaded hole provided in the burette cylinder and tighten
it manually.
4. Insert the TZ 3871 suction hose into the threaded opening of the GL 45 or S 40 adapters and tighten
it manually.
All the other hoses are already preassembled.
95
8
9
10
11
12
13
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