Maintenance
Introduction
7
7-3
Introduction
This chapter describes basic maintenance that the instrument user can perform. Do not
attempt any maintenance not described in this chapter. For additional maintenance,
service, and calibration procedures, qualified service personnel can refer to the Hydra
Series II Service Manual (part number 688868).
Cleaning
W
Warning
Keep the instrument dry to avoid electrical shock to personnel
or damage to the instrument. To prevent damage, never apply
solvents to the instrument housing.
For cleaning, wipe the instrument with a cloth that is lightly dampened with water or
mild detergent. Do not use aromatic hydrocarbons, chlorinated solvents, or methanol-
based fluids.
Line Fuse
The instrument uses a type "T" 125 mA, 250V (Slow blow) line fuse in series with the
power supply. To replace this fuse (located on the rear panel), unplug the line cord and
remove the fuse holder with the fuse as shown in Figure 7-1. The instrument is shipped
with a replacement fuse secured in the fuse holder.
Power-Line Cord Connector
Line Fuse
(T 125 mA, 250V,
Slow Blow)
Fuse Holder
(Spare Fuse Provided)
Complies with the limit for a class B computing device
pursuant to Subpart J of Part 15 of FCC Rules
+
–
0
1
2
3
TR
0
1
2
3
4
5
6
7
Σ
9-16 V
DC PWR
!
+30V
DIGITAL I/O
MEETS 0871 B
To Remove,
Squeeze and
Slide Out
op63f.eps
Figure 7-1. Replacing the Line Fuse
Summary of Contents for 2635A
Page 8: ...2635A Users Manual vi...
Page 26: ...2635A Users Manual xxiv...
Page 29: ...Preparation for Use Introduction 1 1 3...
Page 50: ...2635A Users Manual 1 24...
Page 53: ...Front Panel Operations Summary of Front Panel Operations 2 2 3...
Page 88: ...2635A Users Manual 2 38...
Page 180: ...2635A Users Manual 5 10...
Page 212: ......
Page 234: ...2635A Users Manual B 4...
Page 250: ...2635A Users Manual D 8...
Page 251: ...E 1 Appendix E 8 Bit Binary Coded Decimal Table...
Page 264: ...Hydra Memory Card Record DATA FILES SET UP FILES DATxx Application Note SETxx Application Note...
Page 268: ...2635A Users Manual 4...