Yokogawa Advanced Reflux Sampler - Manual (Page 18)

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All Rights Reserved. Copyright © 2011, Yokogawa Electric Corporation. Subject to change without notice. April 2011 IM 11A00V01-01E-A
10.4.3 Display Adjustment
The adjustment head provided (Figure 1), enables the set
temperature to be raisd or lowered, one the drive screw ‘C’
has been engaged.
To make any adjustment the blue knob is turned clockwise to
lower the temperature, and counterclockwise to increase it.
After setting, if desired, the drive screw can be disengaged
by prying out the black plastic cap ‘B’ with a small flat-head
screwdriver, via the slot provided, remove the 3 mm A/F allen
headed drive screw ‘C’ and stow in the knob, then replace the
black cap.
The adjustment knob will now spin freely without changing the
temperature setting.
10.4.4 Commissioning
Reference Figure 2, opposite, for the following instructions:
Adjust to the desired setting by turning the knob clockwise to
lower the temperaure and counterclockwise to increase it.
After setting the plant to work, compare the thermometer
reading with the scale reading on the temperature control
reading. This may be found to differ by a few degrees. If
precise indication is require it can be adjusted by resetting the
scale as follows.
1. Loosen the screw holding the sleeve scale in place and
adjust the sleeeve by rotating it until the scale reading
matches the actual temperature.
2. Tighten the screw until it holds the scale firmly in place
without over tightening (it only needs a light touch as it
is for location only).
Fig. 2
Knob
Screw
Sleeve
scale
Fig. 1
B
C
Adjustment head (knob)