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EXIT – Used to exit a function and to skip to the next function. Any changes
made to the displayed value are ignored. Holding “EXIT” for about ½ a second
returns control to the main display.
Switch Hold – These terminals are for connecting and testing external thermal
switches and cutouts.
5.3 Constant Temperature Block Assembly
The “Block” is made of aluminum and provides a relatively constant and accu-
rate temperature environment in which the sensor that is to be calibrated is in-
serted. A 1.25 inch diameter well is provided that may be used for sensors of
that size or may be sleeved down with various sized multi-hole probe sleeves.
TEDs surround the block assembly and provide even heat to the sensor. A
high-temperature platinum RTD is imbedded at the base of the block assembly
to sense and control the temperature of the block. The entire assembly is sus-
pended in an air cooled chamber thermally isolated from the chassis and
electronics.
5.4 Probe Sleeves
The probe sleeves are show in Figure 3.
The calibrator is supplied with a multiple hole aluminum probe sleeve for inser-
tion into the calibrator well and tongs for removing sleeves. Probe sleeves of
various hole sizes are available allowing the user’s probe to fit snugly into the
well whatever the diameter of the probe.
One insert (whichever is ordered) is shipped with the unit:
15
5 Parts and Controls
Constant Temperature Block Assembly
SWITCH
HOLD
SET DOWN UP
EXIT
Smoked Display Window
9103
DRY-WELL CALIBRATOR –25°C to 140°C
104.6 C
Figure 2 9103 Front Panel
DRY-WELL CALIBRATOR –25°C to 140°C
910 3
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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