Thermo Scientific PRO902C, Инструкция по эксплуатации

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PRO902C MANUAL
T FS
Rev 6.0 August 16, 2007 4-8
Possible problem - Restricted eductor exhaust tubing.
Corrective action:
Check internal and external exhaust vent tubing for restrictions.
Possible problem - Pressure Regulator not adjusted correctly or defective.
Corrective action
: Adjust or replace regulator.
4.11.6 High flow rate at the eductor exhaust
Possible problem - Regulator pressure set too high.
Corrective action:
Reduce regulator pressure.
Possible problem - Leak around sample orifice.
Corrective action:
Replace orifice o-ring (quartz orifices) or orifice holder (stainless steel
jets).
Possible problem - Leak between orifice holder and eductor body.
Corrective action:
Clean and lubricate gasket with high vacuum grease or replace gasket.
4.11.7 Low eductor vacuum
Possible problem - Leak between orifice holder and eductor body.
Corrective action:
Clean, lubricate and tighten compression springs to specification
(please see Section 4.7, step H) or replace gasket.
Possible problem - Eductor exhaust restricted.
Corrective action:
Check internal and external exhaust vent tubing for restrictions.
Possible problem - Defective eductor air jet.
Corrective action:
Replace jet.
4.11.8 Low span reading
Possible problem - Dirty main filter element.