Thunder Scientific 2500 series, Руководство по эксплуатации и обслуживанию

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4-3
4.2.2.1 Temperature Calibration Procedure
Reference Drawing 91D25902
1) Switch main console power OFF.
2) Turn OFF or disconnect the air supply.
CAUTION!
ALL SYSTEM PRESSURE MUST
BE VENTED BEFORE
PROCEEDING.
3) Using a #10 Torx driver, remove both top panels and the left rear panel from the
generator. Remove the black foam insulation blocks and plugs from the openings.
4) Remove temperature probes to be calibrated.
Notes:
(A) Remove the Chamber Temperature Probe by pulling the rubber cork
and feeding the probe and cable through the chamber jacket opening.
(B) Before removing the Saturation Temperature Probe (RTD0), two
gallons of heat transfer fluid must be drained. Remove the fill cap
located on top of chamber. Locate the drain hose at bottom rear of
console. Remove cap and drain the chamber fluid. Be sure to save
fluid for refilling. Using the 7/16" wrench, remove the saturation
temperature probe.
(C) Using the 7/16" wrench, remove the Presaturator Temperature Probe
(RTD1) if desired.
(D) To gain access to the Expansion Valve Temperature Probe (RTD2),
remove the foam insulation blocks from the expansion valve and drive
assembly. Using needle nose pliers, loosen the knurled compression
nut which holds the temperature probe. Gently slide the probe out,
leaving the knurled nut assembly in place.
(E) Feed the temperature probes to be calibrated through the inside panel
grommet and uncoil the cables.
5) Bring a precision temperature bath with reference thermometer to the system, and
install thermistors to be calibrated into temperature bath.
6) Switch main console power ON. Wait a few moments for the system to initialize and
for the Control/Display screen to appear.