Opal DT-9121 Manual de usuario
11
English OPERATING INSTRUCTION
VOLTAGE TESTER DT-9121
Safety
International Safety Symbols
Warning of a potential danger, comply with
instruction manual.
Caution! Dangerous voltage. Danger of
electrical shock.
Double insulation.
WARNINGS
In order to avoid electrical shock, the valid
safety and VDE regulations regarding
excessive contact voltages must receive
utmost attention, when working with voltages exceeding
120V (60V) DC or 50V (25V) rms AC. The values in brackets
are valid for limited ranges (as for example medicine and
agriculture).
Prior to measurement ensure that the test leads and the test
instrument are in perfect condition.
When using this instrument only the handles of the probes
may be touched – do not touch the probe tips.
This instrument may only be used within the ranges
specified and within low voltage systems up to 690V.
2
Prior to usage ensure perfect instrument function (e.g. on
known voltage source).
The voltage testers may no longer be used if one or several
functions fail or if no functionality is indicated.
Do not use this instrument under damp conditions.
Perfect display I sonly guaranteed within a temperature
range of -10 up to +55 , at relative humidity question℃℃
<85%.
If the operator’s safety cannot be guaranteed, the
instrument must be removed from service and protected
against use.
The safety can no longer be insured if the instrument
zShows obvious damage
zdoes not carry out the desired measurements
zhas been stored for too long under unfavorable conditions
zhas been subjected to mechanical stress during transport.
All relevant statutory regulations must be adhered to when using this
instrument.
Appropriate Usage
The instrument may only be used under those conditions and for
those purposes for which it was conceived. For this reason, in
particular the safety references, the technical data including
environmental conditions and the usage in dry environments must
be followed.
When modifying or changing the instrument, the operational safety
is no longer ensured.
The instrument may only be opened by an authorized service
technician, e.g. for fuse replacement.
3
4
Specifications
12,24,36,50,120,230,
400,690VDC
ACV
Frequency
range
50/60Hz
LED
voltage
range
12,24,36,50,120,230,
400,690VAC
Automatic
load (RCD)
yes
±12,24,36,50,120,230,
400,690VDC
Internal
basic load
approx.
2.1 W at
600V
LED
resolution
12,24,36,50,120,230,
400,690VAC
Peak
current
1s <0.2A
/ Is (5s) <
3.5mA
Tolerances -30% to 0% of reading Operation
time
ED =30s
Voltage
detection
automatic Recovery
time
10 min
Polarity
detection
full range LED on About 8V
AC/DC
Range
detection
automatic Response
time
< 0.1s
LED
Single-pole Phase
Test Continuity Test Rotary Field Indication
Voltage
range
100…69
0V AC
Resistan
ce range
<300k
Ω
Voltage
range (LEDs)
100…40
0V
ACV 50/60Hz Test 5μA Frequency 50/60Hz
5
Frequen
cy range current range
Overvolt
age
protecti
on
690VA
C/DC
Measuremen
t principle
double-p
ole and
contact
electrode
Pow
er
sup
ply
2x1.
5V
“AA
A”
Batt
eries
Power
consu
mptio
n
m
ax
.3
0
m
A/
ap
pr
ox
.
25
0
m
W
Tem
pera
ture
rang
e
-1
0
℃
u
p
to
+
5
5
℃
Hu
mi
dit
y
max.
85%
relati
ve
humi
dity
Over-
voltag
e
class
CA
TIII
-
100
0V
6
Voltage Tester Description
1. Handle test probe –
2. Instrument test probe +
3. measurement point illumination
4. LEDs for voltage display
5. LED for single-pole phase test
6. LED for “ ! ” warning voltage mode display
12
11
10
1
2
5
9
7
6
4
3
8
13
14 DC
AC
V
LR
~
7. LED for + DC voltage mode display
8. LED for – DC voltage mode display
9. LED for continuity
10. Self-test switch(Auto test)
11. Measurement point lighting Button
12. Battery case
13. LED for +DC voltage mode display
14. LED for -DC voltage mode display
(“13” LED add “14”LED for AC voltage mode display)
Explanations of Symbols
The voltage tester shows the following symbols:
7
DC DC voltage
AC AC voltage
Phase display from 100 to 600V ~ 50/60Hz
when used as a “single-pole” phase tester.
Continuity test symbol
- Negative DC voltage display
+ Positive DC voltage display
Device for work to be performed with voltage
present
Battery replacement symbol
Operation
1. Function test / Self test
zTest the voltage tester on a known source.
zThe “!” LED will light on when there is a voltage over 50V,
even if the battery is low or if the battery has been removed.
zWarning: To avoid electric shock, disconnect the test leads
from any source of voltage before turn on the self-check
test function.
zWhen press “Auto test” button, all voltage LEDs (4) will
must be light on, and The continuity test’s LED (9) will light
on, buzzer sound. This shows the tester self-test was done.
2.Voltage Test
zConnect both test probes with power source.
zAs from a voltage of >12V the voltage tester switches on
automatically.
8
zThe voltage is displayed via LEDs.
zFor AC voltages the “AC“ LED is illuminated .
zFor DC voltages the “-DC or +DC“ LED is illuminated.
zThe instruments are equipped with an LED row comprising:
±12,24,36,50,120,400,690 For DC voltage; 12, 24, 36, 50,
120, 400 for AC voltage. the polarity of the voltage
displayed refers to the instrument test probe (+).
zDue to technical reasons the instrument cannot effectuate
an automatic switch-on for DC voltages within the range of
approx. 0V to –/+8V.
3. Single-pole phase Test
zThe single-pole phase test is only possible when batteries
are installed and in good condition.
zThe single-pole phase test starts at an AC voltage of
approx. 100V (pole >100V AC).
zWhen using single-pole phase tests to determine external
conductors the display function may be impaired under
certain conditions (e.g. for insulating body protective
equipment on insulation locations).
zThe single-pole phase testing is not appropriate to
determine whether a line is live or not. For this purpose, the
double-pole voltage test is always required.
zConnect both test probes with power source.
zThe LED (5) is illuminated in the display.
4. Continuity Test
The continuity test is only possible when batteries are installed and
in good condition. A signal sound is audible for continuity and the
LED for continuity LED (9) is illuminated.
9
5. Rotary Field Indication
The voltage testers are equipped with a double-pole rotary field
indicator.
The safety measures as mentioned in paragraph 2.0 have to be met.
The rotary phase indication is always active. The symbols R or L are
always displayed. However, the rotary direction can only be
determined within a three phase system. Here, the instrument
indicates the voltage between two external conductors.
Connect the instrument test probe with the supposed phase L2 and
the handle test probe with the supposed phase L1.
The voltage and the rotary field direction are displayed.
R signifies that the supposed phase L1 is the actual phase L1 and
the supposed phase L2 is the actual phase L2.
L signifies that the supposed phase L1 is the actual phase L2 and
the supposed phase L2 is the actual phase L1.
When re-testing with exchanged test probes the opposite symbol
has to be illuminated.
6. Measurement Point Illumination
Voltage testers are equipped with a measurement point illumination
feature. Thus, working under bad lighting conditions (e.g. division
switch cabinets) is made easier. Press button for measurement point
illumination (11) on instrument.
7. Maintenance
When using voltage testers in compliance with the instruction
manual, no particular maintenance is required. If functional errors
occur during normal operating, our service department will check
your instrument without delay.
10
8. Cleaning
Prior to cleaning, remove voltage test from all measurement circuits.
If the instruments are dirty after daily usage, it is advisable clean
them by using a damp cloth and a mild household detergent. Never
use acid detergents or dissolvents for cleaning.
After cleaning, do not use the voltage tester for a period of
approx. 5 hours.
9. Calibration Interval
the voltage testers must be calibrated periodically and checked by
our service department at regular intervals to ensure the specified
accuracy of measurement results. We recommend a calibration
interval of one year.
10. Battery Replacement
If no signal sound is audible when short-circuiting the test probes,
proceed with the battery replacement.
zCompletely disconnect voltage tester from the measurement
circuit.
zRemove discharged screw, battery cover and batteries.
zReplace by new batteries, 2pcs of “AAA” (UM4 R03) by
respecting correct polarity.
zClose the battery cover and re-screw the screw.
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