GTC CT8017 User Manual

1. SAFE TY RULES

AC DC

+

-

H

+

-

H

This meter is designed for indoor use at temperatures between 0°C to 40°C and

•

altitudes up to 2,000m.

T o 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

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the meter is not operating properly.

When using the instrument, keep your fi ngers behind the fi nger 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.

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To avoid electrical shock or damage to the meter, do not exceed the input limits.

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2. INTERNATIONAL SYMBOLS

Important information Dangerous Voltages

see manual

Continuity
AC Ground
DC Double Insulation

3. TECHNICAL SPECIFICATIONS

3.1 General Specifi cations

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
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

“ ” is displayed

3.2 Electrical Specifi cations

 Accuracies are ±(% of reading + number of least signifi cant

•

digits) at 23°C ±5°C, less than 75% RH.

Function Range Accuracy

DC Voltage

AC Voltage

DC Current

AC Current

320 mV 0.8%+2

3.2V, 32V,

320V, 600V

3.2V, 32V,

320V, 600V

320A,

3200A,

32mA,320mA

10A

320A,

3200A,

32mA,320mA

10A 2.5%+5

1.2%+2

1.2%+5 2 M

1.5%+2

2.5%+2

1.5%+5

Input

Impedance

2 M - 600 Vp-p

< 163 mV Voltage Drop

10A max. for <10 Sec

< 163 mV Voltage Drop

10A max. for <10 Sec

Remarks

 50~400Hz 600 Vp-p

Overload

Protection

Fuse

protection

10 A - 250V,

10A max.

10 sec.

Fuse

protection

10 A - 250V,

10 A max

10 sec.

CT8017

Function Range Accuracy Remarks

Resistance

Continuity

Diode T est

320, 3.2K,
32k,320k

3.2M
32M

Buzzer sounds when <18 Test Voltage: 1.2 V Max.
Displays forward diode Volt-

age drop (Vf)

1.2%+5

3.5%+5 250 Vp-p

Max. T esting Voltage:

< 1.5 V

Test Current < 0.6mA

4. OPERATION

4.1 Instrument Description

1) Case

2) Display

3) Hold button

4) Function switch

5) Input and common
connectors

6) Alterate function button

7) Range button

4.2 LCD Display Description

Beeper enable

DC

Data Hold

AC

Diode test

enable

0

.........1.........2.........3..

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 ensure that
the circuit is not “live” before opening it in order to
connect the test leads.

1

2
3

OFF

4

AUTO

5

Digital Readout

Analog bar graph

GTC

0

.........1.........2.........3..

HOLD

Ω

V

V

SELECTION

max 10A

fused

COM

10A

max
600V

MAN
mV
Mk

Overload

Protection

250 Vp-p

250 Vrms

250 Vrms

CT8017

MAN
mV
Mk

RANGE

μ

A

mA

10A

AUTO OFF

CAT II

MAX 600V

400mA fused

VΩmA

Manual range
enable

Measurement
units

Low battery

7
6

4.3.1 AC/DC Voltage measurement

Connect the black test lead to the “COM” socket and red test lead

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to the “V  mA” socket.
Set the FUNCTION SWITCH to the desired range:

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“
“V” function for Auto range

If MANUAL MODE is selected and the voltage range is not

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known beforehand, using the RANGE BUTTON to set the range
to the highest and work down as needed.

If in MANUAL MODE, select AC or DC voltage measurement by

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pressing the AC/DC/Beeper/Diode Button function button.
Connect the test leads across the source or load under

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measurement.
The measurement and polarity will be shown the LCD Display

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when the probe are connected.

V” function for Manual range

4.3.2 AC/DC Current measurement

Connect the black test lead to the “COM” socket and red test lead to:

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“V  mA” for measurements below 320 mA
“10 A” for measurements between 320 mA and 10 A

Select the current range using the FUNCTION SWITCH, if the

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current range is not known beforehand, start with the highest
range and work down as needed.

If needed select AC or DC current measurement by pressing the

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AC/DC/Beeper/Diode Button function button.
Connect the test leads in series with the circuit or load under

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measurement.
The measurement and polarity will be shown the LCD Display

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when the probe are connected and current fl ows through the
meter.

4.3.3 Resistance measurement

CAUTION: Maximum Input Voltage for this function is 250

Vrms for less than 10 Sec., do not exceed this
rating to avoid personal injuries or damage to the
instrument. Also ensure there is no power applied
to the component or circuit and all capacitors are
discharged.

Connect the black test lead to the “ ” socket and red test

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lead to the “V  mA” socket.
Set the FUNCTION SWITCH switch to the “” function.

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Connect the test leads across the componet or circuit under

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measurement.

The range will adjust automatically for optimal readout,

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and

the measurement will be shown the LCD Display when the

probe are connected.

4.4 Other Functions

CAUTION: Maximum Input Voltage for this function is 250

Vrms for less than 10 Sec., do not exceed this
rating to avoid personal injuries or damage to the
instrument. Also ensure there is no power applied
to the diode.

4.4.1 Diode test

Connect the black test lead to the “COM” socket and red test lead

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to the “V  mA” socket.
Set the FUNCTION/RANGE switch to the “ ” function.

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• Press the AC/DC/Beeper/Diode button until the diode test

enable symbol

appears on the display

Proceed to connect the test leads across the diode observing the

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polarity: red probe to the anode (+) of the diode and black test
lead to the cathode (-).

The measurement will be shown on the LCD Display when the

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diode is connected.

4.4.2 Continuity Test

Connect the black test lead to the “COM” socket and red test lead

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to the “V  mA” socket.
Set the FUNCTION/RANGE switch to the “ ” function.

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Press the AC/DC/Beeper/Diode button until the beeper enable

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symbol appears on the display
Proceed to connect the test leads across the circuit or component to test.

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• Buzzer will sound if the circuit resistance is below 18

4.4.3 Display Hold

The Hold Button is used to hold display readings during
measurements.

Pressing the button holds the display reading, and “H” appears

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on the display.
Pressing the button again resumes normal operation.

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5. MAINTENANCE

CAUTION: Before attempting battery removal or replacement,

disconnect test leads and remove the instrument
from any energized circuit to avoid shock hazard.

5.1 Battery Replacement

T o replace the battery , remove the screw of the back Battery Cover

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(back of the case) and remove the batteries.
Replace with new 1.5 V alkaline battery type AA, UM3 or equivalent

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observing the proper polarity from the diagram on the label inside
the battery compartment.

Reinstall the battery cover and tighten the securing screw.

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5.2 Fuse replacement

Remove the screw of the back Battery Cover (back of the case)

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and remove the batteries.
Remove the four screws at the bottom of the case and of the bat-

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tery compartment.
Replace new fuses only with the identical type and rating.

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F1=200mA: Type IEC60127-2 or UL248-14 (5 x 20mm)
fast acting fuse, rated at 400mA/250V.

F2=10A: Type IEC60127-2 orUL248-14 (6.3x25.4mm)
fast acting fuse, rated at 10A/250V.

Reinstall the back cover, and replace the four screws.

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Reinstall the battery observing the polarity on the battery compartment

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label, the battery cover and tighten the securing screw.

5.3 Cleaning

Periodically wipe the case with a soft damp cloth and mild household
cleanser. Do not use abrasives or solvents. Ensure that no water gets
inside the instrument to prevent possible shorts and damage.

6. WARRANTY

One year limited warranty, excluding batteries and fuses. For details
see Standard Warranty Information in our webpage or you may request
a printed copy .

General Technologies Corp.

#121 - 7350 72nd Street Tel.: [phone]
Delta, BC V4G 1H9 Fax: [phone]
Canada www.gtc.ca

© Copyright 2017 General Technologies