MTS Bionix EnviroBath - Manual (Page 21)

Bionix® EnviroBath™ Chamber Installation 21
Position the
circulating system
relative to the chamber
Determine the height at which the circulating system is placed relative to the
EnviroBath chamber to ensure proper fluid circulation and drain. Proper
orientation also minimizes the chance of fluid leaking from the top of the
chamber.
Head is the measure of the distance between the fluid out coupling on the
circulating bath and the bottom of the EnviroBath chamber. A positive head is
required for proper circulation and drain; the tubing routing from the upper quick
coupling to the circulating system should be generally downward. The lower
quick coupling must be above the reservoir for the chamber to drain completely
when the pump is switched to OFF.
Also consider head distance when setting up the system. The circulating pump
has limited head pressure/flow performance. Zero flow will occur at a head of
approximately 1.6 m (66 in).
Rate of process fluid
flow
Do not overfill the chamber. Under steady-state circulation, the chamber fluid
typically is 2–4 cm (0.75–1.5 in) above the upper quick coupling port. Do not
allow the fluid to reach the upper surface of the sample compartment. The
circulating pump has a high and low speed setting. Do not operate at high speed
setting unless a safe steady-state fluid level can be established.