20
53220A/53230A User’s Guide
1
Preparation for Use
Cycling Power and Counter Accuracy
With standby power enabled, repeated power cycling (line or battery) does not
affect the standard or ultra-high stability OCXO.
Battery Operation
WA RN I N G
During battery operation, the maximum measured signal supplied by the user is + 42V.
Also, connect the instrument chassis to earth ground during battery operation to mini-
mize shock hazard. Any interruption or disconnection of the protective earth terminal
will cause a potential shock hazard that could result in personal injury.
Under battery power, the instrument chassis may float to the potential of the measured
signal supplied by the user.
With Battery Option 300 installed and
enabled
, the 53220A/53230A counter
can be operated using battery power for up to three hours.
Removing AC power when the battery is enabled switches the counter to
battery power automatically with no interruption of operation. Similarly,
there is no interruption in the transition back to line power,
provided line
power is connected before the battery is disabled
.
Summary of Contents for 53220A
Page 10: ...10 53220A 53230A User s Guide Contents...
Page 34: ...34 53220A 53230A User s Guide 1 Preparation for Use...
Page 142: ...142 53220A 53230A User s Guide 4 53220A 53230A Input Signal Conditioning...
Page 190: ...190 53220A 53230A User s Guide 5 Triggering and Gating...
Page 268: ...268 53220A 53230A User s Guide 8 Instrument Status Figure 8 1 The 53220A 53230A Status System...
Page 274: ...274 53220A 53230A User s Guide 8 Instrument Status...
Page 288: ...288 53220A 53230A User s Guide A 53220A 53230A Error Messages...