®
73
Series III Multimeter
Instruction Sheet
Read First: Safety Information
W To avoid damage to the meter, electric shock or injury:
∙Never use the meter if the meter or test leads look damaged.
∙Be sure the test leads and rotary switch are in the correct position for the desired measurement.
∙Never measure resistance in a circuit when power is applied.
∙Never touch the probes to a voltage source when the test leads are plugged into the 10 A or 300 mA input jack.
∙Never use the meter on circuits that exceed 4800 volt-amps.
∙Never apply more than the rated voltage between any input jack and earth ground.
∙Be careful when working with voltages above 60 V dc or 30 V ac rms. Such voltages pose a shock hazard.
∙Keep your fingers behind the finger guards on the test probes when making measurements.
W Warning
To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the low battery indicator (M) appears.
Symbols
WCaution: Important Information. See instruction sheet.
MAN
T
M
CAT II
Manual Range.
Double Insulation.
Low battery. Replace battery.
Overvoltage Installation Category per IEC 61010-1-95. CAT II instruments protect against transients from equipment supplied from the fixed installation, e.g., TV, PC, and household appliances.
PN 1646063 February 2002 (English)
ã 1997, 1998, 2002 Fluke Corporation. All rights reserved. Printed in China.
Terminals
Amps |
|
Volts, Ohms, Diode Test |
|
10A |
|
V |
|
|
600V CAT |
||
300 |
FUSED |
COM |
|
mA |
|||
|
|
||
Milliamps |
|
Common Terminal |
|
hr2f.eps
See Specifications for overload protection.
Pushbutton
Use the pushbutton to either select a fixed range or put the meter in the Automatic Touch Holdâ mode.
Autorange
The meter defaults to autorange when first turned on.
Manual Range
Manual ranging is available in V ac, V dc, ohms, A ac, and A dc.
The manual range mode and Touch Hold mode are mutually exclusive. MAN is displayed when the meter is in the manual range mode.
MAN
Momentary
V
+
_
hr14f.eps
To return to autorange, press Rfor 1 second or change the measurement function.
Automatic Touch Hold Mode
W Warning
To avoid electric shock, do not use the Touch Holdâ mode to determine if a circuit with high voltage is dead. The Touch Hold mode will not capture unstable or noisy readings.
The Touch Hold mode automatically captures and displays stable readings. Press Rfor 2 seconds. HOLD is displayed when the meter is in the Touch Hold mode.
HOLD |
HOLD |
HOLD |
V DC |
V DC |
V DC |
|
||
V |
V |
V |
2 seconds
+ |
_ |
_ |
+ |
_ |
|
|
|
single beep
hr3f.eps
When the meter captures a new input, it beeps and a new reading is displayed.
Note
Stray voltages can produce a new reading.
To exit the Touch Holdâ mode, press Ror change the measurement function. The Touch Hold mode and manual range mode are mutually exclusive.
Bar Graph
The bar graph shows readings relative to the full scale value of a displayed measurement range and indicates polarity.
hr16f.eps
Standby
If the meter is on but is inactive for an hour (20 minutes in diode test), the screen goes blank and displays selected bar graph segments.
To resume operation, turn the rotary switch or press R.
AC and DC Voltage (K L mL)
Volts AC |
Volts DC |
Millivolts DC |
V AC
V DC
V
V 
mV
+ |
_ |
+ |
_ |
+ |
_ |
|
|
|
hr4f.eps
Resistance (e)
Turn off the power and discharge all capacitors. An external voltage across a component will give invalid resistance readings.
k
+
_
hr6f.eps
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