Model ph87 retraction sensor assembly, Sensor service instructions – Yokogawa pH/ORP Retractable PH97 User Manual
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IM M1263JL-A
Sensor Service Instructions
9
Sensor Service Instructions
[Step A]. LOOSEN LOCKING
NUT AND FERRULES OF GLAND
FITTING, ITEM NO. 3.
Caution: THE SENSOR ASSEMBLY
IS STILL UNDER PRESSURE.
LOOSENING THE LOCKING NUT
COULD RESULT IN THE SENSOR
RETRACTING SUDDENLY AND
WITH A GREAT DEAL OF FORCE.
THIS COULD CAUSE DAMAGE
TO THE SENSOR ASSEMBLY
OR INJURY TO THE SERVICE
PERSON.
[Step B]. FULLY
RETRACT STAGE #1 SUB-
ASSEMBLY SHAFT.
BEFORE SERVICING REMOVE THE MODEL PH97 SENSOR FROM SERVICE FOLLOWING THE
STEP-BY-STEP INSTRUCTIONS [A] AND [B] IN ORDER AS SHOWN BELOW:
Model PH87 Retraction Sensor Assembly
[STEP A]. LOOSEN LOCkING
NUT AND FERRULES OF GLAND
FITTING, ITEM NO. 3.
CAUTION: THE SENSOR ASSEMBLY
IS STILL UNDER PRESSURE.
LOOSENING THE LOCkING NUT
COULD RESULT IN THE SENSOR
RETRACTING SUDDENLY AND
WITH A GREAT DEAL OF FORCE.
THIS COULD CAUSE DAMAGE
TO THE SENSOR ASSEMBLY
OR INJURY TO THE SERVICE
PERSON.
[STEP B]. FULLY
RETRACT STAGE #1 SUBASSEMBLY
SHAFT.
BEFOrE SErVICING rEmOVE ThE mODEL Ph97 SENSOr FrOm SErVICE FOLLOwING ThE STEP-By-STEP
INSTruCTIONS [A] AND [B] IN OrDEr AS ShOwN BELOw: