EUTECH INSTRUMENTS alpha-pH 2000D Manuel d'instructions Page 10

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Thermo Scientific Alpha pH 560 5
Figure 2–2. Outer Side of Back PCBA
The Controller supports both Pt100 & Pt1000 (2-wire or 3-wire)
temperature sensors. The default factory setting is Pt100. If you need to
use Pt1000 temperature sensor, you have to change the jumper setting
(J7) as described below.
Remove screws from the four corners at the back of the pH Controller.
Remove the back cover.
Remove the screw located center of the back PCBA. Detach the back
PCBA from the Controller. Turn over the back PCBA. Locate J7
jumper on the inner side of the back PCBA as shown in the figure
below.
Swi
t
ching Between
PT100 & PT1000
Temperature
Sensors
Remove Back Cover
Remove Back PCBA
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