Maintenance and Troubleshooting
5
708-DS / 709-DS Operator’s Manual
123
Water Bath and Temperature Probes (708-DS)
Water Bath Care
The water bath supplied with the 708-DS is designed to be maintenance
free except for occasional cleaning.
If algaecide or a clear bath product is used, ensure that it is compatible
with PETG and vinyl. The flow path in the heater / circulator is
primarily stainless steel and should tolerate most clear bath
formulations. Check with the product manufacturer for compatibility.
Complete these steps if any of the water bath fittings are leaking:
1
Turn off the heater / circulator and drain the water bath completely.
2
If the inlet to the bath is leaking, remove the leaking right-top bath
bulkhead fitting and unscrew the elbow fitting.
3
If the outlet to the bath is leaking, remove the tubing and unscrew the
T-fitting from the left-bottom side of bath.
4
Inspect the bulkhead fitting gaskets for damage and replace them if
necessary.
5
Remove old PTFE tape from all male fittings. Inspect threads for
damage and replace the elbow of the T-fitting if necessary.
6
Apply new PTFE tape to the male fitting threads.
7
Reinstall and tighten the bulkhead fitting to the bath and / or screw in
the elbow or T-fitting, depending on whether it’s an inlet or outlet.
8
Fill the bath with water and inspect for leaks. If it’s still leaking,
contact Technical Service.
CAUTION
Ammonia and bleach can cause deterioration of the plastic. Use only
cleansers approved for plastic materials. These can be found in the
catalogs of most scientific supply houses. Additionally, do not use
abrasive cleansers that may scratch the plastic.
