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5 Maintenance
5.3
VFD Display
NOTE:
When a vacuum Fluorescent Display is used, It will not
require contrast adjustment.
If you cannot read anything on the VFD, especially after first powering
up, check that VFD cable is not loose.
5.4
Fuse Replacement
The 2010B requires two 5 x 20 mm, 1 A, T type (Slow Blow) fuses.
The fuses are located inside the enclosure on the Electrical Connector Panel,
as shown in Figure 5-1. To replace a fuse:
1. Disconnect the Unit from its power source.
2. Place a small screwdriver in the notch in the fuse holder cap,
push in, and rotate 1/4 turn. The cap will pop out a few
millimeters. Pull out the fuse holder cap and fuse, as shown in
Figure 5-1.
5-2 Part I
Preamp
0
OK - > 0 means one or more gain have a
high offset, e.g. 204 means highest
gain has an offset. This error is
common on sealed air cells.
Cell
0
OK
1
Failed (open filament, short to ground, no
power.)
2
Unbalance (deterioration of filaments, blocked
tube)
Teledyne Analytical Instruments
Model 2010B
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