4
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DESCRIPTION
26. AC Voltage
27. DC or AC Current
28. Measuring Resistance
29. Continuity Test
30. Diode Test
31. Measuring Capacitance
32. Long screws
33. Short screws
34. Back cover
35. Front cover
36. Fuse 10A
37. Fuse 400mA
38. Springs
39. Pins
OPERATION
WARNING
Do not allow familiarity with products to make
you care less. Remember that a careless fraction
of a second is sufficient to inflict serious injury.
WARNING
Follow the General and Specific Safety
Rules in this manual when making electrical
measurements and work ing with high voltages.
Failure to follow standard safety precautions
could result in electric shock and serious
personal injury.
TO INSTALL / REMOVE BATTERY PACK
See Figure 2.
Q
Make sure the mode selection dial is in the OFF
position before installing or removing the battery
pack.
To remove the battery pack:
Q
Use a small phillips screwdriver to loosen the screws
and remove the battery cover.
NOTE:
The screws stay attached to the cover. There
is an o-ring in the slot in the housing. Make sure the
o-ring is fully seated in the slot.
Q
Insert the battery pack in the direction shown.
Q
Replace the battery compartment cover and reattach
with the screws.
Q
Do not attempt to take readings unless the battery
door is securely closed.
WARNING
Always remove battery pack from your product
when you are assembling parts, making
adjustments, cleaning, or when not in use.
Removing battery pack will prevent acci dental
starting that could cause serious personal injury.
READING THE LCD DISPLAY
(See Figure 3.)
SYMBOL
MEANING
AUTO
Autorange mode is selected
HOLD
Data hold is enabled
Relative mode is active
Continuity test is selected
Diode test is selected
DC
Negative sign
AC
Battery is low and should be recharged
or replaced immediately
UNITS ON THE LCD DISPLAY
mV, V
Voltage unit mV: Millivolt ; V: Volt;
1V=10
3
mV
\A, mA, A
Current unit
A: Microamp; mA: Milliamp; A: Ampere;
1A=10
3
mA=10
6
A
^, k ^, M^
Resistance unit
: Ohm; k : Kilohm; M: Megohm;
1M =10
3
k =10
6
nF, \F
Capacitance unit
nF: Nanofarad; F: Microfarad;
1F=10
6
F=10
9
nF=10
12
pF
ACCURACY
Accuracy is specified for a period of one year after
calibration and at 18ºC to 28ºC, with relative humid ity <
75%. Except the ranges which are specified specially,
accuracy is specified from 8% to 100% of range.
Accuracy specifications take the form of:
± ([% of R[number of Least Significant
Digits])
961067398-01.indd Sec1:4
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Summary of Contents for RP4020
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