Instruction manual

120-00004 REV A 10/6/2011 4000 DIGITAL MANUAL PAGE 19
Fig. 11
For P-type sensors refer to (fig. 11). Disconnect the 2 electrical
connections to the sensor. Disconnect the tubing from each gas
fitting. Loosen the screw indicated as “A”. Loosen the clamp screw
“B” until the sensor can be removed from clamp.
NOTE: DO NOT REMOVE ANYTHING ELSE!!!!!!
Restore the sensor to within 5 grams original sensor weight by
injecting an equivalent cc of distilled or deionized water (10g.
weight loss means add 10cc water). DO NOT OVERFILL. If
sensor will not take on any more liquid (liquid starts coming out the
fill port) do not attempt to add additional distilled water.
Note: Weight loss of excess of 30 grams may prevent the
restoration of the weight to within 5 grams of the original
weight. DO NOT OVERFILL. After weighing and refilling replace
the sensor in the analyzer, tighten screw “B” taking care only to
make it tight so as to secure the sensor. Then tighten screw “A”,
do not over tighten. Assure that all electrical and pneumatic
fittings are secure. The sensor should be allowed to stabilize for
several hours with power off, (up to 24 hours).