General Technologies CT8015 CT8015 Manual Range Digital Multimeter - Manual

1. SAFETY RULES
•
This meter is designed for indoor use at temperatures between 0°C to 40°C and
altitudes up to 2,000m.
• To ensure that the meter is used safely, follow all safety and operating instructions in
this operation manual. If the meter is not used as described in this operation manual,
the safety features of this meter might be impaired.
• Do not use the meter if the meter or test leads look damaged ,or if you suspect that
the meter is not operating properly.
• When using the instrument, keep your fingers behind the finger guards on the plastic
casing and probes.
• Disconnect the live test lead before disconnecting the common test lead.
• Make sure power is off before cutting, desoldering, or breaking the circuit wires. Small
amounts of current can be dangerous.
• Do not apply more than 600 VDC or 600V AC rms between a terminal and ground.
• To avoid electrical shock, use CAUTION when working above 60V DC or 25V AC
rms. Such voltages pose a shock hazard.
• Never make measurements with the battery cover off.
• To avoid electrical shock or damage to the meter, do not exceed the input limits.
2. INTERNATIONAL SYMBOLS
Important information Dangerous Voltages
see manual Continuity
AC Ground
DC Double Insulation
3. TECHNICAL SPECIFICATIONS
3.1 General Specifications
Display: 3-1/2 digits LCD, max. of 1999 display
Polarity: Automatic, (-) negative polarity indication
Zero adjustment: Automatic
Sample rate: 0.5 Sec.
Over range indication: Only the MSD “1” is displayed
Power: 9-volt battery type NEDA 1604, IEC6F22
Battery life: Approx. 50 hours. (w/ alkaline batteries)
Dimension: 141 x 69 x 36 mm.
Weight: Approx. 330g (including battery).
Accesories: User’s Manual, Test Leads, Protective
Holster, Soft Pouch and 9V battery
3.2 Electrical Specifications
• Accuracies are ±(% of reading + number of least significant
digits) at 23°C ±5°C, less than 75% RH.
4. OPERATION
4.1 Instrument Description
1) Case
2) 3-1/2 Digit LCD display
3) DC Voltage range
4) Function/Range switch
5) DC Current range
6) Input Sockets
7) Power OFF
8) AC Voltage range
9) Transistor Test
10) Resistance range
11) Diode Continuity Test
12) Transistor Test Socket
Function Range Accuracy
Input
Impedance
Remarks
Overload
Protection
DC Voltage
200mV,
2000mV, 20V,
200V, 600V
0.8%+1 1 MΩ - 600 Vp-p
AC Voltage 200V, 600V 1.5%+10 450 KΩ 40~400Hz 600 Vp-p
DC Current
200µA,
2000µA, 20mA
1.0%+2 - -
200 mA -
250V Fuse
200mA 1.2%+2 - -
10A 2.0%+5
10 A - 250V
Fuse
Resistance
200Ω, 2KΩ,
20kΩ ,200kΩ,
1.0%+3 - - 250 Vp-p
2000kΩ 1.0%+3 250 Vp-p
Continuity Buzzer sounds when <100Ω Test Voltage: 2.4 V Max. 250 Vrms
Diode Test Test Current:1.0±0.6mA Test Voltage: 2.4 V Max. 250 Vrms
Transistor
Test
NPN and PNP Compatible 0 to 1000hFE -
4.2 Measurement Procedures
CAUTION: Maximum Input Voltage is 600Vrms,do not exceed
this rating to avoid personal injuries or damage to
the instrument. The range FUNCTION/RANGE
switch should be set to the range you want to test
before the operation.
CAUTION: Always ensure that the correct terminals are used
for the type of measurement to be made. Avoid
making connections to “live” circuits whenever
possible.When making current measurements en-
sure that the circuit is not “live” before opening it in
order to connect the test leads.
4.2.1 DC Voltage measurement
•
Connect the black test lead to the “COM” socket and red test lead
to the “V Ω mA” socket.
• Set the FUNCTION/RANGE switch to the desired range in the
“V ” function. If the voltage range is not known beforehand, set
the switch to the highest range and work down as needed.
• Connect the test leads across the source or load under
measurement.
• The measurement and polarity will be shown the LCD Display
when the probe are connected.
4.2.2 AC Voltage measurement
•
Connect the black test lead to the “COM” socket and red test lead
to the “V � mA” socket.
• Set the FUNCTION/RANGE switch to the desired range in the
“V ” function. If the voltage range is not known beforehand, set
the switch to the highest range and work down as needed.
• Connect the test leads across the source or load under
measurement.
• The measurement will be shown the LCD Display when the
probe are connected.
General Technologies Corp.
CT8015
Digital Multimeter
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