Functional Check - Thermo Scientific Mercury Freedom 80i Manual

Optional Equipment
Hydrator

Functional Check

6-6 Mercury System Manual
9. Select Choose Action > Hydrator Alarm, and press
The Hydrator will now fill during 80i "Sample" gas mode.
1. Remove the reservoir cap and fill the reservoir with deionized water ¾
full. Replace cap.
2. At the 80i Main Menu, select Instrument Controls > Gas Mode >
Sample.
The Hydrator solenoid valve should energize, allowing deionized water
from the upper chamber to fill the lower chamber.
3. Check for water leaking from between the two canisters as the fill
action occurs. Bubbles will appear as the chamber fills and will cease
when the lower chamber float switch rises with the water level and
closes at the top of its travel. This action will open the circuit, and the
solenoid valve will de-energize, stopping water flow.
4. Remove the upper chamber cap and top off to ¾ full. Replace cap.
5. At the 80i Main Menu, select Instrument Controls > Gas Mode >
System Span.
The 81i gas mode will change, and Hg calibration gas will begin to
flow across the surface of the water in the lower canister of the
Hydrator. This is visible to the naked eye as the surface of the water
ripples from the ~10 lpm of gas flows across it.
6. Leak check all fittings and mating surfaces sealing gas pressure with
®
Snoop leak test solution or a suitable substitute. Repair any leaks as
required.
7. Select Sample mode on the 80i. The ripple across the lower canister
water should stop
The Hydrator is now ready for operation.
.
Thermo Fisher Scientific