
WARNING
USING AUTOTRANSFORMERS. If the mainframe is to be
energized via an autotransformer (for voltage reduction) make
sure the common terminal is connected to neutral (that is, the
grounded side of the main’s supply).
CAPACITOR VOLTAGES. Capacitors inside the mainframe may
remain charged even when the mainframe has been
disconnected from its source of supply.
USE PROPER FUSES. For continued protection against fire
hazard, replace the line fuses only with fuses of the same
current rating and type (such as normal blow, time delay, etc.).
Do not use repaired fuses or short-circuited fuseholders.
WIRING INSULATION. To prevent electrical shock, all wires to
the channel connections must be insulated to at least 120 V rms
(170 V peak).
CAUTIONS
This section contains CAUTIONS which must be followed to avoid damage
to the equipment when performing instrument maintenance or repair.
CAUTION
MAXIMUM VOLTAGE/CURRENT. The maximum voltage that
may be applied between High (H), Low (L), and Guard (G)
terminals is 170VDC or 120Vrms (170Vpeak) for the E1345A,
E1347A, E1355A, and E1356A modules. The maximum voltage
that may be applied between High (H), Low (L), and Guard (G)
terminals is 250VDC or ACrms (354Vpeak) for the E1343A or
E1344A. The maximum current is 50 mA (non-conductive) per
channel. The maximum power per channel is 1 VA.
STATIC ELECTRICITY. Static electricity is a major cause of
component failure. To prevent damage to the electrical
components in the multiplexers, observe anti-static techniques
whenever working on a multiplexer.
Chapter 1
General Information 13
Содержание Agilent E1345A
Страница 2: ......
Страница 8: ...Notes 6 E1343A 44A 45A 47A 55A 56A Service Manual ...
Страница 9: ......
Страница 10: ......
Страница 12: ...Notes 10 What s In This Manual E1343A 44A 45A 47A 55A 56A Service Manual ...
Страница 20: ...Figure 1 2 Initial Incoming Inspection Guidelines 18 General Information Chapter 1 ...
Страница 22: ...Notes 20 General Information Chapter 1 ...
Страница 49: ...Figure 3 2 E1343A E1344A E1345A E1347A Terminal Module Mechanical Parts Chapter 3 Replaceable Parts 47 ...
Страница 50: ...Figure 3 3 E1355A E1356A Terminal Module Mechanical Parts 48 Replaceable Parts Chapter 3 ...
Страница 54: ...Figure 4 1 E1343A E1344A E1345A E1347A Multiplexer Block Diagram 52 Service Chapter 4 ...
Страница 56: ...Figure 4 2 E1355A 56A Multiplexers Block Diagram 54 Service Chapter 4 ...
Страница 64: ...Notes 62 Service Chapter 4 ...
Страница 72: ...Notes 70 Example C Programs Appendix A ...
Страница 81: ...Figure B 2 E1343A 44A 45A 47A Terminal Module Mechanical Parts Appendix B Backdating Information 79 ...
Страница 82: ...Figure B 3 E1355A 56A Terminal Module Mechanical Parts 80 Backdating Information Appendix B ...
Страница 83: ......
Страница 84: ...Copyright Agilent Technologies Inc 2005 E1345 90013 E1345 90013 ...