Dilog CombiVolt DL6780 User manual

DL6780/DL6790 CombiVolt™
Voltage & Continuity Indicator
Voltage Indication 12 - 690V
AC/DC with Continuity
Instruction Manual
EN
61010-1
CAT IV
600V

DL6780/90 Operating Manual
Di-LOG
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Contents
I. Overview 3
II. Safety Notice 3/4
III. Instrument Symbols 5/6
IV. Technical Specication 6
V. Display and Controls 7
1. Operating Instructions 7
2. AC Voltage Indication 8
3. DC Voltage Indication 9
4. Single Pole Voltage Indication 10
5. Continuity 11
6. Phase Sequencing Indication 11/12
7. Maintenance 13
8. Battery Replacement 13
9. Calibration 13
10. Accessories 14
11. Warranty Information 14
1

DL6780/90 Operating Manual
Di-LOG
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Certicate of conformity
As the manufacturer of the instrument listed
below, we declare under our sole responsibility
that the product:
Di-LOG DL6780/DL6790
to which this declaration relates is in conformity
with the relevant clauses of the following standards:
EN 61010-1:2010
EN 61010-2-030:2010
EN 61010-031:2015
EN 61243-3:2014
EN 61326-1:2013
EN 61326-2-2:2013
IEC 60529 (IP65)
LVD & EMC
The safety and performance of this instrument is
assured when operated within the specications
in this instruction manual.
The product identied above conforms to the
requirements of council directive 2014/35/EU
2

DL6780/90 Operating Manual
Di-LOG
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I. Overview
Thank you for purchasing a Di-LOG voltage continuity
tester. This tester has been designed in accordance
with the latest international safety standards.
The CombiVolt™ series of instruments are fully
automatic voltage indicators capable of measuring AC/
DC voltage up to 690V. Both units have visual and
acoustic continuity indication, single pole detection
and a phase rotation sequencing indication.
Constructed in accordance with IEC 61010-1 and
IEC 61243-3.
• Single pole phase indication
• 2 pole phase rotation indication
• LED & LCD display (DL6790).
3
II. Safety Notices
This instruction manual contains information that must
be followed for operating the meter safely and main-
taining the meter in a safe operating condition. If this
meter is not used in the manner that is specied, the
protection provided may be impaired.
Warning! Warns of potential danger, refer to the
instruction manual to avoid personal injury or damage
to the meter.
Caution! Dangerous voltage. Danger of electrical
shock.
Perfect display is only guaranteed within a temperature
range of -10 - 50°C, relative humidity <85%.
A statement about protection impairment if used in
a manner not specied by the manufacturer.
The voltage indicators are designed to be used by
skilled persons and in accordance with safe methods
of work.
The voltages marked on the voltage indicator are
nominal voltages and the voltage indicator is only to
be used on installations with the specied nominal
voltages.
The di󰀨erent indicating signals of the voltage indicator
are not to be used for measuring purposes.
Before using a voltage indicator at locations with a
high background noise level, it has to be determined
whether the audible signal is perceptible.

DL6780/90 Operating Manual
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4
II. Safety Notices (continued)
It is important to check the state of the battery before
use and to replace it if necessary.
The meter has been designed in accordance
with the safety regulations for electronic
measuring instruments, EN 61010-1:2010,
EN 61010-2-030:2010, EN 61010-031:2015, EN
61243-3:2014, EN 61326-1:2013 & EN 61326-
2-2:2013
Voltages above 75V DC or 50V AC may constitute a
serious shock hazard.
Before using the meter, check for physical damage to
the casing, in particular around the cable strain relief.
If the case is damaged, do not use the meter.
Check the test probes for damaged insulation or
exposed metal.
Check the leads for continuity.
Do not apply more than the rated voltage, as marked
on the meter between the terminals or between any
terminal and ground.
Do not use or store the meter in an environment of
high temperature, humidity, fumes, vapour, gaseous,
inammable, and strong magnetic eld.
The performance and safety of the instrument and the
user may be compromised in such circumstances.
Disconnect circuit power and discharge all high voltage
capacitors before testing resistance, continuity and
diodes.
Remove the batteries if the meter is not in use for a
long period.
Constantly check the battery as it may have leaked. A
leaking battery will damage the meter.
The meter may only be opened by a qualied service
technician for calibration and repair.

DL6780/90 Operating Manual
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Warning! Warns of potential danger, and to
comply with the instruction manual.
Caution! Dangerous voltage, potential risk
of electrical shock.
Equipment protected throughout by double
or reinforced insulation. Complies with IEC
536, class II
Suitable for live working
CE Symbol of conformity conrms conformity
with relevant EU directives. The meter
complies with EMC directives (2004/ 1 08/
EC), the Low Voltage Directive (described
in the standard EN 61010·1, 61243·3.
The DL6780/90 meets the standard
(2012/19/EU) WEEE. This marking
indicates that this product should not be
disposed with other household wastes
throughout the EC. To prevent possible
harm to the environment or human health
from uncontrolled waste disposal, recycle
it responsibly to promote the sustainable
reuse of material resources. To return your
used device, please use the return and
collection systems or contact the retailer
where the product was purchased. They
can take this product for environmental safe
recycling.
The instruction manual contains information
and references, necessary for safe opera-
tion and maintenance of the instrument.
Prior to using the instrument the user is
kindly requested to thoroughly read the
instruction manual and comply with it in all
sections.
5
III. Instrument & Manual Symbols
Symbols displayed on the instrument and in the
instruction manual:

DL6780/90 Operating Manual
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III. Instrument Symbols (continued)
IV. DL6780/DL6790 Specication
6
CAT IV Applicable to test and
measuring circuits connected at the
source of the building’s low-voltage
MAINS installation.
Failure to read the instruction manual or
to follow the warnings and references
contained herein can result in serious bodily
injury or instrument damage. The respective
accident prevention regulations established
by the professional associations are to be
strictly enforced at all times.
EN
61010-1
CAT IV
600V
DL67xx Voltage Indicator Specification
DL6780 DL6790
2 Pole Voltage Indication
Voltage range 12 - 690V AC/DC
LED resolution 12, 24,50, 120, 230, 400 & 690V
LCD resolution n/a 1 V +/- 3 % + 8 digits
Voltage detection Automatic
Frequency range 0 - 400Hz
Peak current 3.5mA
Operation time 30 Seconds
Acoustic AC/DC signal 
Auto power on >12V AC/DC
IP rating IP65
Single Pole Indication
Voltage range 100 - 690V AC
Frequency range 50 - 400Hz
Continuity
Acoustic & visual 
Measurement range 0 - 400kΩ
Phase Rotation Test
Voltage range 100 - 690V AC
Frequency 45 - 65Hz
Over voltage protection 690V AC/DC
Other Information
Dimensions 225mm x 70mm x 28mm
Weight (net) 200g 210g
Power supply 2 x 1.5V (RO3) AAA (supplied)
EAN 5060082542329 5060082542336

DL6780/90 Operating Manual
Di-LOG
...measurably better
1. Operating Instructions
Carrying out measurements
Perform a self-test of the unit. Connect the two
test probes L1 and L2 together. The continuity
LED (6) will be lit, and an audible tone should be
heard.
Before any test, check the unit on a known
voltage source or approved voltage proving unit.
If the unit is defective it should be put out of service
and returned to Di-LOG for repair.
7
V. Display and Controls
1. Test Probe (-) L1
2. Test Probe (+) L2
3. LED’s for voltage indication
4. LED for single - pole test
5. Right & Left LED, phase rotation indication
6. LED for continuity
7. LCD for voltage display (only DL6790)
8. Contact electrode for double-pole test of
phase rotation and single-pole test
9. Torch button on the back
10. Positive LED
11. Negative LED
12. Battery Compartment

DL6780/90 Operating Manual
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2. AC Voltage Indication
8
Always hold the test probes by the handles
behind the nger guards. Observe all the safety
notices at all times.
An audible tone is present when an AC voltage
and a negative DC voltage are indicated.
The maximum switch on time is 30 s. When this
time has elapsed, you must wait 10 minutes
before retesting.
Connect probes to the voltage source observing
the polarity of the test probes, L2 is the positive
probe, L1 is the negative probe.
For AC voltage the value is indicated on the
LEDs (3) and on the LCD display (DL6790 only).
The + and - LEDs are illuminated and buzzer is
audible.

DL6780/90 Operating Manual
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3. DC Voltage Indication
For DC voltage measurement, connect probe
L2 to the positive terminal and L1 to the negative
terminal. The voltage is displayed on the LEDs
and the LCD display (DL6790 only). The positive
LED (10) is illuminated. If the polarity is reversed
the buzzer will sound. The negative LED (11) will
be illuminated.
9

DL6780/90 Operating Manual
Di-LOG
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4. Single Pole Voltage Indication
Perform a function test prior to this test.
This unit can be used as a single pole voltage
indicator when the batteries are inserted.
The single pole test is intended only as a quick
check. The circuit must be checked again for the
presence of voltage using the two-pole method.
Connect test probe L2 to the voltage source and
keep nger on the contact electrode (8). If an AC
voltage above 100 V is present the LED (4) is
illuminated and the buzzer sounds.
The single pole test can be negatively a󰀨ected
by unfavourable conditions such as electrostatic
eld, good insulation etc.
10

DL6780/90 Operating Manual
Di-LOG
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5. Continuity Test
The continuity test is only possible when batteries
are inserted and in good condition.
Ensure the circuit under test is not live.
Connect test probes L1 and L2 to the circuit. The
continuity LED (6) will illuminate and the buzzer
will sound.
The unit will indicate continuity below 400K ohm.
6. Phase Rotation Indication
11

DL6780/90 Operating Manual
Di-LOG
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Perform a function test prior to this test.
This unit can determine the phase rotation within
a three phase supply.
Connect test probe L2 to the supposed phase
2 and the test probe L1 to the supposed phase
1. If the R LED illuminates the phases are in the
correct sequence 1 to 2.
Connect test probe L2 to the supposed phase 3
and test probe L1 to the supposed phase2. If the
R LED illuminates the phases are in the correct
sequence 2 to 3.
Connect test probe L2 to the supposed phase
1 and the test probe L1 to the supposed phase
3. If the R LED illuminates the phases are in the
correct sequence 3 to 1.
During phase rotation test touch the contact
electrode.
If the L LED illuminates, then the phase sequence
is anti-clockwise.
6. Phase Rotation Indication (continued)
12

DL6780/90 Operating Manual
Di-LOG
...measurably better
7. Maintenance
Do not attempt to repair this unit . There are no
user
serviceable items in this unit. Never attempt to
open the casing apart from the battery cover.
Do not use the instrument if there is any physical
damage to the case or test leads.
The outside of the unit can be cleaned with a soft
damp cloth only.
Do not use abrasive or chemical cleaning agents.
8. Battery Replacement
Turn the battery cover by 90 degrees anti clock-
wise.
Remove the cover and take out spent batteries.
Replace with 2 o󰀨 1.5 V AAA (LR03) batteries,
checking the correct polarity.
Replace the battery cover and turn by 90⁰ clock-
wise.
Discharged batteries should be disposed of
responsibly and with compliance with current
recycling and disposal regulations.
The recommended calibration interval for the
DL6780/DL6790 is 12 months.
9. Calibration
13

DL6780/90 Operating Manual
Di-LOG
...measurably better
Di-LOG instruments are subject to stringent quality
controls. If in the course of normal daily use a
fault occurs we provide a 24 month warranty (only
valid with proof of purchase). Faults in manufacture
and material defects will be rectied by us free
of charge, provided the instrument has not been
tampered with and returned to us unopened.
Damage due to dropping, abuse or misuse are not
covered by the warranty.
Product Support
[email protected]
Di-LOG Ltd
Unit 28 Wheel Forge Way
Tra󰀨ord Park
Manchester M17 1EH
UK
Tel:[phone]
Email: [email protected]
Website: www.dilog.co.uk
14
10. Accessories
Spares & Optional Accessories
TIP780 Replacement GS38 shrouds for probe
tip.
CP1190 CombiVolt Carry Pouch.
PU690 690V Proving Unit for proving voltage.
CCDLPK Combined carry pouch for PU690.
Proving Unit and CombiVolt Voltage
Indicator.
11. 24 Month Warranty