30
4.
Connect the Output Tubing.
The output tubing is the softer flexible tubing, part number
116360. Connect this to the tube fitting on the RIGHT side of
the each pump. The compression fitting makes it easy to connect
the tubing securely.
5.
Test the pump operation.
Once the pumps have been connected and the tubing fitted, their operation should be checked.
TPS recommends that this be done by pumping from a container of fresh water in case any of
the fittings are leaking, avoiding the possibility of corrosive and/or dangerous chemical
spillage.
Use the Quick Dose function (see section 4) to test the pump operation. It only takes around 25
seconds to prime the pumps, so the Quick Dose time can be set to 1 minute.
6.
Fine-tune the A & B Pumping Ratio
It is normal to obtain slightly different flow rates from pump to pump. The A & B Fine Tune
control is provided on the underside of the pump box to allow the user to adjust the pumps to
obtain a 1:1 output. Use the Quick Dose function (see section 4) to run the pumps for a
reasonable length of time (5 minutes should suffice). Measure the output of each pump and
adjust the control for More A or More B accordingly. Repeat the test to ensure the adjustment
was correct.
The performance of the pumps will vary over time due to normal wear and build-up of
undissolved solids. TPS recommends that this fine tuning is repeated from time to time to
ensure the 1:1 A & B ratio.
11.2 Lubricating the Pump Tubing
The
hydro
CHEM
-DS
is shipped with the correct lubrication on the peristaltic pump tubing. This
lubrication should be re-applied every year. Suitable Silicon lubricant is available from TPS in a
3mL syringe (part no 130103).
To lubricate the pump tubing…
1. Remove the pump tubing, as per the details in section 11.3, below.
2. Smear a small quantity of Silicon grease all around the tube. A thin film is all that is required.
NOTE
DO NOT use petroleum based oil or lubricants, as these will cause the Santoprene rubber to perish.
Use only Silicon based lubricant.
