Fluke 233 User Manual

233
Users Manual
24
AC and DC Current Measurements
XWWarning
To prevent possible electrical shock or
personal injury, do not make an in-circuit
current measurement where the open-circuit
potential to earth is >1000 V. Meter damage
or injury can occur if the fuse blows during
such a measurement.
WCaution
To prevent possible damage to the Meter or
to the equipment under test:
• Do a fuse test before current
measurements.
• Use the correct terminals, function, and
range for all measurements.
• Do not put the probes across (in parallel
with) a circuit or component when the
test leads are connected to the current
terminals.
To measure current, you must break the test circuit, then
put the Meter in series with the circuit.
The current ranges are 6.000 A, and 10.00 A. AC current
is shown as an rms value.
To measure current (see Figure 6):
1. Remove power from the circuit. Discharge all high-
voltage capacitors.
2. Put the black test lead into the COM terminal. Put the
red test lead into the A terminal.
3. Set the function switch to  for ac current or  for
dc current.

Fluke 233 Specifications

Power

maximum voltage between terminal and earth ground	1000 V rms
fuse for A inputs	11 A, 1000 V 17000A interrupt rating
wireless frequency	2.4 GHz ISM Band 10 meter range

Operating Environment

operating altitude	2, 000 meters
storage altitude	12, 000 meters
operating temperature	-10 °C to +50 °C
storage temperature	-40 °C to +60 °C
relative humidity	90 % at 35 °C, 75 % at 40 °C, 45 % at 50 °C

Battery

meter base battery type	Three AA Alkaline batteries, NEDA 15A IEC LR6
display module battery type	Two AA Alkaline batteries, NEDA 15A IEC LR6
battery life	400 hrs typical (Alkaline)