Hanna-instruments HI 904 Uživatelský manuál stáhnout pdf (Strana 29)

2-7

SETUP

2.3.4 Titrator Assembly

Note: Assembly operations must be completed before connecting the titrator to the power supply!

2.3.4.1 Connecting the Air Pump

The diaphragm air pump system is designed to work with the specially designed bottle top

assemblies. It allows the reagent in the titration vessel to be removed and/or replaced with

minimal exposure of the interior of the vessel to ambient moisture from atmospheric humidity.

Connect the air pump with the following steps (see Figure 1):

(1) Retrieve the air pump cable (PUMP 1) from inside the left bay.

Connect the cable

to the air pump as shown in Figure 1. The air pump connector is

located on the

left side of the motor.

(2) Lower the pump into the titrator, then slide it towards the front of the titrator

chassis until it is firmly latched.

(3) Secure the pump with the locking screw.

Figure 1.

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Hanna-instruments HI 904 Uživatelský manuál Strana 29