Hach-Lange 9187 sc - Manual (Page 13)

11
Installation
3.4 Connecting the Waste Stream
Connect the waste stream using the supplied ½-inch ID tubing. Be sure the drain is free
flowing (free of obstructions) so that the waste stream does not cause unnecessary
back-pressure or overflow.
Note: Waste from this instrument must go to the drain.
3.5 Assembling and Placing the Probe
Refer to Figure 5 for a detailed description of the probe components.
Figure 5 Probe Components*
3.5.1 Probe Assembly
CAUTION
To familiarize yourself with handling precautions, dangers and emergency
procedures, always review the Material Safety Data Sheets prior to handling
containers, reservoirs, and delivery systems that contain chemical reagents and
standards. Protective eye wear is always recommended when contact with
chemicals is possible.
1. Screw the membrane cap onto the probe body ( Figure 6 and Figure 7 ). Be careful not
to touch or damage the membrane surface.
2. Remove the filling screw from the probe body.
3. Visually inspect the electrolyte to ensure that there are no particles or other
impurities present.
4. Using the supplied syringe, fill the probe body with ~7 mL of electrolyte.
5. Slowly insert the electrode into the probe body. Do not use force when inserting into
the probe body.
1. Electrode Retaining Ring
2. Measurement Electrode
3. Probe Body
4. Filling Screw
Note: A small hole exists in the plug to allow the instrument to maintain a consistent pressure regardless of changes in
atmopsheric pressure.
5. Flange
6. Probe Body Washer
7. Pre-Mounted Membrane (set of four); Ensure the properly marked membrane is chosen (e.g. CL will appear on the side
for a Chlorine membrane).
*See Replacement Parts and Accessories on page 31 .