1. Safety Instructions
This operation manual includes the user guidance and safety instru
-ction when using the tester, please read it before using.
Caution
● Before using the tester, please read and understand the operating
manual.
● Keep the operating manual properly, and let it easy to get it for
reference during the process of testing.
● When using the tester, user must follow the testing procedure as
mentioned in the operating manual.
● Carefully read the operating manual regarding the safety information.
● Strictly follow all the related safety instructions, otherwise it may
cause accidents or damage the tester.
Safety sign “ ” has three meaning in this manual, user has to pay
the attention to this sign “ ” for operation.
Danger-----identifies conditions and actions that most likely
pose severe or fatal hazard(s)
．
Warning---identifies conditions and actions that may pose
severe or fatal hazard(s)
Caution---identifies conditions and actions that may cause
minor injury or damage to the Tester.
Danger
● This test instrument is suitable for using under single phase
230V+10%-15%.(Operational Voltage Scope: 195 – 253 V)
● To avoid possible electric shock or personal inquiry, do not use
the test t instrument or test leads if they appear damaged or metal
part is exposed, or if test instrument is not operating properly.
If in doubt, please have the instrument serviced.
● Do not use your finger to touch on any testing cable during the
testing ..
● Remove the test leads away from the power after the testing
completes. Do not keep the test leads connected to the power
for a long time after the testing
Warning
● Do not open or disassemble the tester randomly during the
measurement, for the high voltage present into the unit may
endanger the user. If it needs service repairing, please contact
our after-sales services or our agents.
● If the test instrument appear abnormal ( for example, no completed
display, incorrect calculation, housing damage, noise issue during
the measurement etc….). please contact our after-sales services
or our agents.
● Do not use the tester if your hands are in wet.
Caution
● Ensure the test lead probe (use only the specified test leads from
UNI-T) insert into the corresponding port in order to provide a safe
before measurement. It is recommended not to use third arties
test plead probe on our tester.
● Do not expose the tester in extreme temperature and wet environment.
● Soft cloth and mild detergent should be used to clean the surface of
he tester. No abrasive and solvent should be used when servicing.
● Dry the tester before storing if it is wet.
This Tester has the follow signs,please pay attention to the content
when using
danger, warning, caution
double or reinforced insulation
Grounding
CE conforms to Standards of European Union
2. Features
●
Suitable for Use
on 230V/50Hz single-phase line (operating
voltage: 195~253V);
●
Adopts Micro-Processor Chip
to maintain high accuracy, reliability
and stability;
●
Wiring Check:
three –LED indication
When P-E and P-N green LED are on and red LED is off, the
wiring is correct; otherwise it indicates wrong wiring(reverse P
and N or bad grounding);
●
Phase Angle Selection:
The tests can be performed at positive
0 or negative 180 phase angle.
●
Over-Load Indication:
“OL mS” shows when trip time exceeds
Max. test time
●
Auto Data Hold:
The test results will be maintained for a while after
the tests finishes.
3. Technical Specifications
3.1 Measuring Range & Accuracy. (Temperature: 23±5
℃
; Humidity:
45%~75% RH; Altitude ≤2000m)
UT581:
Functions Voltage(AC) Trip Current( I
△
n
)
Trip Time
(MAX)
Accuracy
Trip Current
Trip Time
X 1/2
X 1
X 5
250mA
(Fast
Trip)
230V
(Tolerance:
-15%~+10%)
Frequency:
50Hz
250mA(Fixed)
10 / 20 / 30mA
500mA
10 / 20 / 30 /100 /
300 mA
10 / 20 / 30 /100 /
300 / 500mA
1000mS
1000mS
300mS
1000mS
40 mS
Tolerance:
-10%~0%
Tolerance:
0%~+ 10%
Tolerance:
0%~+ 10%
±0.6% rdg
±4dgt
UT582:
Functions Voltage(AC) Trip Current( I
△
n
)
Trip Time
(MAX)
Accuracy
Trip Current Trip Time
X 1/2
X 1
X 5
AUTO
RAMP
TEST
230V
(Tolerance:
-15%~+10%)
Frequency:
50Hz
10 / 20 / 30 /100
/ 300 / 500mA
10 / 20 / 30mA
500mA
10 / 20 / 30 /100 /
300 mA
10 / 20 / 30 /100 /
300 / 500mA
1000mS
1000mS
300mS
(RAMP
increase to
10%) I
△
n
from
20%~110%
300*10 mS
1000mS
Tolerance:
-10%~0%
Tolerance:
0%~+ 10%
Tolerance:
-10%~+10%
±0.6% rdg
±4dgt
3.2 Measuring Range (Functions)
×1/2--------------------Non-trip test, check RCD sensitivity
×1----------------------Measure trip time
×5----------------------Measure fast trip time at I
△
n×5 trip current
250mA----------------Measure trip time(for UT581only, Max. test
time up to 40ms)
AUTO RAMP Test---- Measure trip current(for UT582 only)
3.3 Application Standard:
IEC 61010-1 CAT III 300V, Pollution Degree 2.
IEC 61557-1,5
IEC 61010-2-31
●
Auto Ramp Test:
Test trip current and trip time simultaneously
(for UT582 only);
●
Power-Off Warning Indication:
The buzzer alarms after operating
for 3minutes;
●
Power Save and Environment-Friendly:
Powered directly by
tested circuit (Power 230V/50Hz) , no need to use battery;
●
Fused Protection
●
Double or Reinforced Insulation for safe design.
●
Fixed 250mA Fast Trip(Max.:40ms)(for UT581 only);
