Fluke 2635A, User Manual

Page: 39 / 268

Preparation for Use
Setting Up the Instrument
1
1-13
COMPLIES WITHFCC-15B
+ – 0 1 2 3 TR 0 1 2 3 4 5 6 7
Σ
9-16 V
DC PWR
!
+30V
90-264V
50/60 Hz
15VA
CAUTION FOR FIRE PROTECTION
REPLACE WITH T 1/8A 250V (SLOW) FUSE
ALARM OUTPUTS DIGITAL I/O
MEETS Vfg. 243/1991
RS-232C
GND
DTR
TX
RX
IEEE STD-488 PORT
SH1, AH1, T5, L4, SR1, RL1, DC1, DT1, PP0, C0, E1
IEC 664 INSTALLATIONCATEGORY II
2620A 2625A 2635A MODEL:
+ –
0 1 2 3 TR
[CTS]
[DSR]
[RTS]
0 1 2 3 4 5 6 7
Σ
6 7 8 9
5 4 3 2 1
[2635A ONLY]
!
EXTERNAL BATTERY (DC OPERATION)
WARNING: If voltages greater than 30V are to be measured, a safety ground must be attached
to the rear panel ground connector when the instrument is operated from battery power.
LINE CORD (AC OPERATION)
op04f.eps
Figure 1-4. Connecting the Instrument to a Power Source
Warning
To avoid shock hazard, connect the instrument power cord to a
power receptacle with earth ground.
AC Operation
Plug the line cord into the connector on the rear of the instrument. The instrument
operates on any line voltage between 90 and 264V ac without adjustment, and at any
frequency between 45 and 440 Hz. However, the instrument is warranted to meet
published specifications only at 50 or 60 Hz.
DC Operation
The instrument may be operated from a DC voltage between 9 and 16 volts, consuming a
nominal 4 watts. Connection is made at the rear panel ALARM OUTPUTS connector,
pins (+) and (-). If both ac and dc sources are connected simultaneously, ac is used if it
exceeds approximately 8.3 times dc. Automatic switchover occurs between ac and dc
without interruption.
Warning
If voltages greater than 30V are to be measured, a safety
ground must be attached to the rear panel ground connector
when the instrument is operated from battery power.
Input Channels
The instrument provides one input (channel 0) on the front panel and 20 inputs (channels
1 through 20) through a connector on the rear panel. Channels 0, 1, and 11 can measure a
maximum of 300V dc or ac rms; all other channels can measure a maximum of 150V dc
or ac rms.