User manual

PAT700 Total Organic Carbon Analyzer – Installation Page 15
Anatel Operator Manual
2.3 Plumbing connections
CAUTION
Potential eye and/or burn hazard! The water inlet can rupture if water pressure is too
high. Sample inlet pressure must not exceed 100 psi (690 kPa).
NOTE
Improper plumbing connections to the analyzer can cause improper flow through the
analyzer, resulting in measurement error.
Do not allow temperature or pressure to exceed the limits listed in Table 2-1. Install high grade
1/4” (OD) PTFE, FEP, PVDF, or 316 stainless steel tubing. Otherwise, install the factory-
supplied 1/4” PFA (perfluoroalkoxy resin) inlet tubing and 1/4” OD polypropylene outlet tubing.
Hach supplies 5 feet (1.5 meters) of PFA tubing and 10 feet (3 meters) of polypropylene
tubing with the analyzer.
Install an appropriate air brake in the drain line between the instrument and the drain. The
outlet drain tubing must be open to atmosphere at the drain.
Isolation valve
To enable manual isolation of the analyzer from input flow, connect the analyzer to the sample
supply through a customer-supplied upstream isolation valve. See Figure 2-5.
Table 2-1 Maximum temperature and pressure limits for PFA tubing
Maximum water temperature Maximum pressure
75 °C (167 °F) 90 psig (620 kPa)
85 °C (185 °F) 80 psig (550 kPa)
90 °C (194 °F) 70 psig (480 kPa)