General Technologies CT8017 Autorange Digital Multimeter User Manual

Ct8017, Safety rules, International symbols

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

Ground

Double Insulation

3. TECHNICAL SPECIFICATIONS

3.1 General Specifications

Display: 3 3/4 digit LCD with decimal point and
33 segments bargraph display.
Polarity: Automatic, (-) negative polarity indication
Zero adjustment: Automatic
Sample rate: 0.5 Sec.
Over range indication: Symbol

“

”

is displayed

Power: 2 x 1.5 V battery, type AA, UM3 or equiv.
Power saving:

Automatic power off

Battery life: Approx. 50 hours. (w/ alkaline batteries)
Dimension: 6.34 x 3 x 2” (HxWxD).
Weight: Approx. 11.4 Oz. (including batteries)..
Accesories: User’s Manual,Test Leads,Protective,
Holster, Soft Pouch and 2 x 1.5 Volt
alkaline batteries

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

4.2 LCD Display Description

General Technologies Corp.

CT8017

Autorange Digital Multimeter

Function

Range

Accuracy

Input

Impedance

Remarks

Overload

Protection

DC Voltage

320 mV

0.8%+2

2 MΩ

600 Vp-p

3.2V, 32V,

320V, 600V

1.2%+2

AC Voltage

3.2V, 32V,

320V, 600V

1.2%+5

2 MΩ

50~400Hz

600 Vp-p

DC Current

320µA,

3200µA,

32mA,320mA

1.5%+2

< 163 mV Voltage Drop

10A max. for <10 Sec

Fuse pro-

tection 10 A
- 250V, 10A

max. 10

Sec.

10A

2.5%+2

AC Current

320µA,

3200µA,

32mA,320mA

1.5%+5

< 163 mV Voltage Drop

10A max. for <10 Sec

Fuse pro-

tection 10 A

- 250V,

10A

2.5%+5

Function

Range

Accuracy

Remarks

Overload

Protection

Resistance

320Ω, 3.2KΩ,
32kΩ ,320kΩ,

3.2MΩ

1.2%+5

Max. Testing Voltage:

< 1.5 V

250 Vp-p

32MΩ

3.5%+5

250 Vp-p

Continuity

Buzzer sounds when <18Ω

Test Voltage: 1.2 V Max.

250 Vrms

Diode Test

Displays forward diode Volt-

age drop (Vf)

Test Current < 0.6mA

250 Vrms

4.3 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.

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Beeper enable

Digital Readout

Manual range

enable
Measurement

units

Low battery

Analog bar graph

Data Hold

Diode test

enable

1) Case
2) Display
3) Hold button
4) Function switch
5) Input and common

connectors

6) Alterate function button
7) Range button