Ashcroft A Handleiding voor installatie en onderhoud - Pagina 7
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8.3.1 Every angle connection (optional)
Only adjust the every angle connection if this is necessary during fitting or
removal.
Use the every angle connection to place the sensor in the correct position
prior to installation, proceeding as follows:
Position the thermometer housing in a straight alignment (Position "C")
Using the screws marked "A", loosen until the joint can be turned freely
through 180° on the lower part of the housing and the sensor.
Hold the thermometer housing firmly with one hand, and with the other hand
turn the joint piece until the inner part of the joint is showing in the desired
direction of bend.
Firmly tighten the aforementioned Screws "A" again.
Loose the screws marked "B" and move the joint into the desired direction of
bend.
Firmly tighten the aforementioned Screws "B" again.
8.3.2 Process connection
Connection only to be undertaken by authorized and qualified specialist staff.
Use only with the mechanical process connection provided – regarding the configuration, see order code on the
device type label.
When connecting the device without using a thermowell, the pipes must be depressurized.
Do not allow any mechanical force to be applied to the stem; in particular, pay attention to matching the "S"
lengths of the thermometer and the thermowell, to avoid contact against the base of the thermowell.
A thermal transfer medium (heat conducting paste) in the thermowell improves the reaction time and reduces the
measurement error caused by the thermal transfer.
Safety notice: Only mount using the correct open-jawed wrench, and do not twist the device itself.
8.4 Starting up
The precondition for start-up is correct installation. All connecting lines must be laid such that no mechanical
forces can act on the device.
Before start-up, the seal on the thermowell in the pipe must be checked.
8.4.1 Zero point adjustment
On thermometers with an external adjustment option, rotate using a screwdriver until the pointer is showing the
desired temperature on the scale.
On thermometers with a bayonet ring, remove the ring, take hold of the pointer using two fingers on the broader
part close to the pointer bearing, and use a small screwdriver to rotate the bearing by an estimated angle. Then let
go of the pointer and read off the value displayed. Repeat this operation until the desired value is being displayed.
Then seal the housing tightly again using the bayonet ring, the glass and the sealing ring.
Do not insert moist or oily stems into hot thermowells.
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