Kaise SK-7830 Instruction Manual

LOW CURRENT
DC CLAMP METER
INSTRUCTION MANUAL
SK-7830
FOR SAFETY MEASUREMENTS!!
To prevent an electrical shock hazard to the operator and/or
damage to the instrument, read this instruction manual carefully
before using the Clamp Meter. WARNINGS with the symbol
on the Clamp Meter and this instruction manual are highly
important.
Important Symbols
The symbol listed in IEC 61010-1 and ISO 3864 means
"Caution (refer to instruction manual)".
WARNING : The symbol in this manual advises the user
of an electrical shock hazard that could result in serious
injury or even death.
CAUTION : The symbol in this manual advises the user of
an electrical shock hazard that could cause injury or
material damages.
INTRODUCTION
Thank you for purchasing KAISE "MODEL SK-7830 LOW
CURRENT DC CLAMP METER". To obtain the maximum
performance of this instrument, read this Instruction Manual
carefully, and take safe measurement.
1. UNPACKING AND INSPECTIONS
Inspect the instrument and acessories for transport damage. If
there is any damage or missing items, ask your local dealer for
replacement.
Confirm that the following items are contained in the package.
1. Digital Clamp Meter 1pce.
2. Carrying Case (1011) 1pce.
3. Batteries (1.5V R6P) 2pcs.
4. Instruction Manual 1pce.
2. SPECIFICATIONS
2-1. GENERAL SPECIFICATIONS
1. DISPLAY (LCD)
a. Numerical Display : 4000 count, Maximum reading 4050,
12mm high
, −, 〜, mA, A, mV, V, Ω, kΩ, MΩ,
b. Units and Symbols :
Hz, kHz, %, nF, μF,
, , DH, DIFF,
PH, MAX, MIN, APO, BAT, AUTO, LPF
and decimal point.
⊿ conversion
2. OPERATING PRINCIPLE : Σ
3. SAMPLING RATE : 64 times / second(Display : 1time/second)
4. RANGE SELECTION : Manual-ranging(4000mA),
Auto-ranging(40A/200A)
5. POLARITY : Auto-Polarity ("ー" indication in minus)
6. OVERLOAD INDICATION : "OL" indication blinks
7. BATTERY WARNING : "BAT" indication at approx. 2.3V or less
1
8. DISPLAY HOLD : Hold indicating values by DH Key
9. ZERO-ADJUSTMENT (DIFFERENCE MEASUREMENT) :
Adjust LCD into 0±1 digit and/or start Difference Measurement by
0 ADJ Key.
(DIFF)
10. AUTO POWER OFF : Power turns off automatically after a lapse
of following minutes.
a. 4000mA range : Approx. 5 minutes
b. 40A/200A range : Approx. 10 minutes
11. OVERLOAD PROTECTION : 400A AC/DC rms for 1 minute
(50/60Hz)
12. DIELECTRIC STRENGTH : 3.54kV AC, 50Hz sine wave, for 1
minute (between iron core and case)
13. OPERATABLE TEMPERATURE & HUMIDITY :
0℃ to 40℃, 80%RH or lower in non-condensing.
14. STORAGE TEMPERATURE & HUMIDITY :
-20℃ to 60℃, 70%RH or lower in non-condensing.
15. TEMPERATURE COEFFICIENT : Accuracy in 23℃±5℃×0.1/℃
16. SAFETY LEVEL : CE Marking approved (IEC-61010-1, CAT Ⅲ
300V, CATⅠ600V and EMC Test passed.)
17. POWER SUPPLY : 1.5V R6P (AA) batteries ×2
18. POWER CONSUMPTION : 26mA max.
19. CONTINUOUS OPERATING TIME : Approx. 60 hours (Alkaline
cell), Approx. 30 hours (Manganese cell) (in 40A/200A range, 0A
input)
20. CONDUCTOR DIAMETER : φ20mm max.
21. DIMENSIONS & WEIGHT : 203(H)×61(W)×30(D)mm,
Approx. 230g (including batteries)
22. ACCESSORIES : 1011 Carrying Case, 1.5V R6P (AA) batteries
×2, Instruction Manual
2-2. MEASUREMENT SPECIFICATIONS
(23℃±5℃、＜80％RH in non-condensing)
1. DC CURRENT ( mA, A)
*Accuracy after zero adjustment
Max.Input
Accuracy Resolution
Range
Current
±1.5％rdg±5dgt (from 5mA)
4000mA 1mA 4000mA DC
40.00A 10mA
(0 to 100A)±1.5％rdg±5dgt
200A DC
(101 to 200A)±3.0％rdg±5dgt 100mA
200.0A
Overload Protection : 400A AC/DC rms (for 1 minute) (50/60Hz)
Range Selection : Manual-ranging / Auto-ranging
3. SAFETY PRECAUTIONS
Correct knowledge of electric measurements is essential to avoid
unexpected danger such as operator's injury or damage to the
instrument. Read carefully and observe the following precautions for
safety measurements.
3-1. WARNINGS
WARNING 1. Checks of Clamp Meter Body
Before measurement, confirm the body of this instrument has no
cracks or any other damages. Dust, grease and moisture must be
removed.
WARNING 2. Warning for High Power Line Measurements
High Power Line (High Energy Circuits) such as Distribution
Transformers, Bus Bars and Large Motors are very dangerous. For
safety of high power line measurement, do not touch the live line and
keep enough distance.
WARNING 3. Maximum Input Observance
Do not measure any current that might exceed the specified
maximum input values.
WARNING 4. Safety Line
Safety Line
Do not put your fingers over the
safety line while current
measurement. (Refer to fig.1)
2
3-2. GENERAL WARNINGS AND CAUTIONS
Children and the persons who do not have enough
WARNING 1.
knowledge about electric measurements must not
use this instrument.
Do not measure the electricity naked or barefooted to
WARNING 2.
protect yourself from electrical shock hazard.
CAUTION 1. Do not polish the case or attempt to clean it with any
cleansing fluid like gasoline or benzine. If necessary,
use silicon oil or antistatic fluid.
CAUTION 2. Avoid the clamp meter from hard mechanical shock or
vibration, high temperature and strong magnetic field.
Remove the batteries when the clamp meter is out of
CAUTION 3.
use for a long time. The exhausted batteries might
leak electrolyte and corrode the inside.
Do not measure AC high-frequency current. Clamp
CAUTION 4.
head becomes heated and could damage the
instrument.
1 : Do not make a measurement
temperature difference. In case that the clamp meter
moved into high temperature place from low
temperature, turn the power on and leave it for a
while to get it used to the surrounded temperature.
2 : When measurement, open clamp head 15mm or
wider and close it softly. Detach fingers from trigger
after clamping a conductor.
4. NAME ILLUSTRATION
DH Key
(
0 ADJ Key
(DIFF)
Safety Line
4000mA
DH
0 ADJ
( DIFF )
CATⅢ
1sec<
300V
CATⅠ OFF 40A / 200A
600V
MAX 200A
L OW C U R R EN T DC C L AM P M ET ER
Clamp Head Trigger
4-1. LCD
AUTO DH PH DIFF MAX MIN
BAT LPF
kMΩ
ｎ
μ
Hz Ｆ
％mVA
APO
: Lights up in auto-ranging measurement
AUTO
: Low battery warning
BAT
− :
Lights up at minus
: Lights up in DC current measurement
: Auto power off indication
APO
:
DH Lights up in display hold function
:
DIFF Lights up in zero-adjustment and difference
measurement
: Lights up in current measurement
mA, A
4-2. Clamp Head
Clamp on a single conductor to measure DC current.
NOTE : Unable to measure if several conductors are clamped.
4-3. Safety Line
The line to protect yourself against electrical shock hazard. Do not
put your fingers over this line while current measurement.
4-4. FUNCTION Switch
Turns the power on and selects measurement functions. After
measurement, turn it to "OFF".
fig.1
3
4-5. DH Key : Display Hold
Holds indicating measurement values. ("DH" lights up)
To cancel it : Press DH key again.
4-6. 0 ADJ Key :
(DIFF)
Zero-Adjustment : Press this key for 1 second or more when
zero-point adjustment is necessary. LCD indications are adjusted
into 0±1 digit.
Difference Measurement : Press this key for 1 second or more
while measurement. Convert a measurement value into zero and
indicate the relative values.
To cancel it : Press 0 ADJ
4-7. Trigger
Opens and closes the clamp head. When measurement, open
clamp head 15mm or wider and close it softly. Detach fingers from
trigger after clamping a conductor.
under large
5. MEASUREMENT PROCEDURES
5-1. PREPARATION FOR USE
1. INSTRUCTION MANUAL
Read INSTRUCTION MANUAL carefully to understand the
specification and functions correctly. 「3. SAFETY PRECAUTIONS」
is higly important for safety measurement.
2. BATTERY
Before using this instrument, install 2 of 1.5V R6P (AA) batteries
refering to 「6-1. BATTERY REPLACEMENT」. Replace them in
the same way when "BAT" lights up on LCD.
FUNCTION Switch
3. OVERLOAD INDICATION
"OL" lights up on LCD if measurement value exceeds maximum
S K -7 8 3 0
indicatable value of each measurement range (4050 digits or 2050
digits).
4. AUTO POWER OFF
Power turns off automatically after approx. 5 minutes (4000mA
range) or after approx. 10 minutes (40A/200A range) of last
LCD
FUNCTION Switch operation to conserve battery life. (Small-
current-consumption remains. After measurement, be sure to set
fig.2
FUNCTION Switch to "OFF".)
To cancel it (40A/200A range only) : Hold down DH Key and set
FUNCTION Switch from "OFF" to "40A/200A". Auto power off is
canceled and "APO" disappears from LCD.
NOTE : Auto power off cannot be canceled in 4000mA range.
5. POWER-ON INITIALIZE
Automatic zero-adjustment function to adjust LCD indications into
0±1 digit when powered on.
NOTE : INITIALIZE does not work properly if some inputs are
applied.
NOTE : Do not touch trigger when turning on the power.
INITIALIZE does not work correctly if any pressure is
applied to trigger or clamp head is opened.
6. SYMBOL MARK
The following symbol marks shown on the instrument and
instruction manual are listed in IEC 61010-1 and ISO 3864.
Caution (refer to instruction manual.)
Caution for current-applied dangerous conductor
Direct Current (DC)
Double Insulation
CE Marking Conformity
Key for 1 second or more.
(DIFF)
4