T-359
7–34
7.20.1
Replacing the Recorder
a. Turn power to the unit OFF.
b. Open the recorder door (item 1, see
).
c. Locate the connector below the recorder (item 6), and squeeze the ears together to disconnect the plug.
d. Remove the four mounting screws (item 8), and remove the recorder.
e. Install the new recorder by reversing the above steps.
Figure 7.20 Electronic Partlow Temperature Recorder
7.20.2
Re-zeroing the Recording Thermometer
For Electronic Partlow Recorder CTD part number 12-00464-xx
Where xx= an odd number (example: 12-00464-03)
NOTE
Use chart CTD: part number 09-00128-00 (F), part number 09-00128-01 (C).
a. Press the “Calibration” button (item 7,
) on the bottom of the recorder. The pen tip will drive fully
down scale, then move upscale to the chart ring at -29°C (-20°F), and stop.
1
3
4
5
6
7
8
9
10
2
1.
Recorder Door
2.
Change Chart Button
3.
Recorder Box
4.
Pen Tip
5.
Stylus Arm
6.
Connector
7.
Calibration Button (Located underneath)
8.
Mounting Screws, #10-24 x 7/16 inches long
9.
Hold Down Tab
10.
Chart Retaining Nut
Summary of Contents for 69NT40-561-019
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