Innova 3310+ Manual

DIGITAL MULTIMETER
SAFETY PRECAUTIONS
To prevent electrical shock and/or damage to the tester or the equipment under
test, observe the following safety precautions:
Always inspect the multimeter, test leads and any other accessories for
•
damage prior to every use. If any damage is found, do not use tester until
repairs are done.
Always consider electrical and electronic equipment to be energized (live).
•
Never assume any equipment is de-energized.
Never ground yourself when taking electrical measurements. Isolate
•
yourself from ground by using dry rubber insulating mats to cover all
exposed/grounded metal. Stand on rubber mats and wear dry clothing.
Never take resistance measurements on energized (live) electrical or
•
electronic equipment.
Use one hand, instead of two, whenever possible to take measurements. If
•
two hands must be used, use extreme caution not to contact any energized
conductors with your hands. Be certain test leads are dry and clean.
Do not hold the instrument when taking measurements. Place the
•
instrument on a clean, insulating surface prior to taking any measurement.
•
Don't become part of the circuit. Think safety. Act safely.
If working on a vehicle, take the following added precautions
Only work on vehicle in a well ventilated area.
•
Always wear safety eye protection.
•
Avoid moving fan blades or any potentially moving parts.
•
Avoid hot engine parts.
•
Put transmission in "park" (automatic transmission vehicles) or "neutral"
•
(manual transmission vehicles). Set the parking brake.
Turn the ignition "off" before connecting or disconnecting any testing
•
equipment.
• Put blocks on drive wheels.
•
Avoid wearing loose clothing or jewelry when working on a vehicle.
• Read your vehicle's service manual and follow it's safety procedures.
FEATURES/SPECIFICATIONS
• 1.50 X 0.50 in. LCD display
• Auto range control
• Automatic negative (-) polarity indication
• Automatic zero adjustment
• Over range indicator. Displays "OL" on LCD
• Low battery indicator. Displays battery symbol
• Safety standard: CE EMC/LVD. The meter is up to the standards of
IEC1010 Pollution Degree 2, over voltage Category 3.
• Equipment marked is protected throughout by Double or Reinforced
Insulation.
• Operating environment:
Temperature - 32° to 104° F. (0° C to 40° C)
Humidity - Less than 80% relative humidity (non-condensing)
Altitude - up to 6562 ft (2000 meters)
• Storage environment:
Temperature - 4° to 140° F (- 20° to 60° C)
Humidity - Less than 90% relative humidity (non-condensing)
• Power Supply: Two 1.5-volt (LR44) batteries
• Dimensions:
Height - 5.0 in. (127 mm)
Width - 3.50 in. (89 mm)
Depth - 0.5 in. (12.7 mm)
• Weight (including batteries): approximately 3.5 oz (99 g)
ELECTRICAL SPECIFICATIONS
Accuracy of specifications in the following tables are based on an operating
temperature of 73°F ± 5°F(23°C ± 5°C) and a relative humidity of less than
75% RH.
Maximum voltage between RED and BLACK test leads is 600V AC/DC;
from BLACK test lead to ground is 300V AC/DC.
BATTERY REPLACEMENT
on LCD
PREPARATION AND CAUTION BEFORE USE
DC VOLTS
Range Resolution
200mV 0.1mV
2V 1mV
20V 10mV
100mV
200V
1V
600V
Input impedance: 10MΩ for all ranges.
RESISTANCE (OHMS)
Range Resolution
200Ω
100mΩ
2KΩ
1Ω
20KΩ 10Ω
100Ω
200KΩ
2M Ω
1KΩ
20M Ω
10KΩ
Open Circuit Voltage: Approximately 0.3V
DIODE/CONTINUITY TEST
Resolution Description
Function Range
Diode test
2V
Continuity test
200Ω
AC VOLTS
Range Resolution
2V
1mV
20V 10mV
200V 100mV
600V
1V
Frequency: 40~400Hz
Input impedance: 10MΩ for all ranges
WARNING
When replacing the batteries, remove only the rear panel. Do not
remove or disassemble the circuit board or the front panel, these
items are not serviceable and if disassembled there is the possibility
of loose metal parts shorting the circuit board and causing an
electrocution danger to the user.
1. Turn the Digital Multimeter "OFF".
2. Remove the screws on the back of the meter and separate the case.
3. Replace the batteries:
• Remove the batteries from the battery compartment and replace
only with two 1.5-volt (LR44) batteries.
4. Reassemble the case and secure with the screws.
Inspect the digital multimeter for damage to the case. Do not use if
cracked, distorted, excessively dirty or any abnormal condition exists.
Inspect the test leads for damage. Check for cracked insulation, broken or
damaged probes, loose or bent probe pins. Do not use if any abnormal
condition exists.
Set the Function/Range Selector Switch to the proper range BEFORE
taking measurements. If the range/function must be switched during a test,
ALWAYS remove the test leads from the circuit being measured before
switching settings.
To avoid possible electric shock, instrument damage, and/or equipment
damage when taking voltage or current measurements, DO NOT exceed
the maximum value of the selected range.
If the unit is used near high noise Radio Frequency (RF) generating
equipment (spark plug wires, ignition coils or alternator), the display may
become unstable or indicate large errors. If you obtain erratic readings during
use, isolate the Multimeter as far away as possible from these components.
Accuracy Overload
Protection
±(0.8% of reading + 5 digits)
600V DC or AC600V RMS
Accuracy Overload
Protection
250V DC/AC RMS
±(1% of reading + 5 digits)
±(2% of reading + 5 digits)
Test current 1±0.6mA
1mV
Test Voltage: Approx.: 1.5V
Overload Protection:
250V DC or AC RMS
Approx.120Ω or less,
0.1Ω
buzzer (beeper) will sound
Accuracy Overload
Protection
600V DC or AC600 RMS
±(1.2% of reading + 5 digits)
.
Note