User Manual / 使用說明書 / 使用说明书
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30R
LIMITE D
WARRAN TY
YEAR S
RU
EN
TC
SC
JP
AC/DC Clamp Multimeter
КЛЕЩИ-МУЛЬТИМЕТР ПЕРЕМЕННОГО/
ПОСТОЯННОГО ТОКА
Read First
!
!Safety Information
• Individual protective equipment must be used if
hazardous live parts in the installation where measure
ment is to be carried out could be accessible.
• The barrier on the JAW is indicating the limit of safe
access of the hand-held part, do not over the barrier
when in normal use.
• Do not use a flexible current sensor if the inner
contrasting color of the insulation of the flexible cord is
visible.
• If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the
equipment may be impaired.
• To avoid false readings that can lead to electric shock
and injury, replace battery as soon as low battery
indicator blinks.
• Do not use Meter around explosive gas or vapor.
• Remove test lead from Meter before opening the battery
door or Meter case.
• Use caution with voltages above 30 Vac rms, 42 Vac
peak, or 60 Vdc. These voltages pose a shock hazard.
• Probe assemblies to be used for MAINS measurements
shall be RATED as appropriate for MEASUREMENT
CATEGORY III or IV according to IEC 61010-031 and
shall have a voltage RATING of at least the voltage of
the circuit to be measured.
30R EN
1
Caution
• Disconnect the test leads from the test points before
changing the position of the function rotary switch.
• Never connect a source of voltage with the function
rotary switch in resistance, diode, continuity, and
capacitance position.
• Do not expose Meter to extremes in temperature of high
humidity.
Symbols as marked on the meter and
Instruction manual
Risk of electric shock
See instruction manual
DC measurement
Equipment protected by double or reinforced
insulation
Battery
Earth
AC measurement
Conforms to EU directives
Application around and removal from hazardous live
conductors is permitted
Do not discard this product or throw away.
Both direct and alternating current
!
30R EN
2
INTRODUCTION
30R EN
1-1 Unpacking and Inspection
Upon removing your new Digital Clamp Multimeter from its
packing, you should have the following items:
1. Digital Clamp Multimeter.
2. Test lead set (one black, one red).
3. Carrying case.
4. Instruction manual.
5. Battery.
1-2 Front Panel
Refer to Figure 1 and to the following numbered steps to
familiarize yourself with the meter’s front panel controls
and connectors.
1. Digital Display — The digital display has a 3 3/4 digit
LCD readout (maximum reading 3999) plus decimal
point , AC, DC, AUTO, HOLD, MAX , and unit
annunciators.
2. Input Terminal — The black test leads is always
connected to the “COM” input terminal and red test lead is
always connected to the “V-Ω” input terminal when
measuring ACV or DCV or RESISTOR or CONTINUITY.
3. Drop-Proof Wrist Strap — Prevents the instrument
from slipping off the hand while in use.
4. Function Switch — This slide switch is used to select
V, V, A, A, Ω , function.
5. / MAX Switch — This switch has two modes one is
data hold the other is maximum hold .
Sliding the function switch to power on , this switch will
work in data hold mode. Pressing the / MAX Switch
then slide the function switch from power off to power on ,
this switch will work in maximum hold mode.
Data hold mode — This mode is used to hold measured
value for all functions , push this switch then AUTO
annunciator is displayed, Conversions are made but the
display is not updated.
3
Warning
!
30R EN
Maximum hold mode — This mode is used to hold the
maximum measured value for all functions.
Press this switch the "MAX" annunciator turns on then
enters the maximum hold mode.
Press this switch again to restart recording. Press this
switch more than 1 seconds to exit the maximum hold
mode.
6. ZERO Switch —This switch is used to ZERO the
reading on display.
7. Ω / / AC / DC Selection Switch — Push the " Ω /
/ AC / DC " switch alternately to measure AC voltage or
DC voltage in the " V " function or to measure AC
current or DC current in the " A " function or to measure
resistor or continuity in " Ω " function.
8. Trigger — Press the lever to open the transformer
jaws. When the pressure on the lever is released , the
jaws will close again.
9. Hand Guard — Designed to protect user for safety.
10. Transformer Jaws — Designed to pick up the AC/DC
current flowing through the conductor.
When connecting the test leads to the DUT (Device Under
Test) connect the common test leads before connecting
the live test leads; When removing the test leads, remove
the live test leads before removing the common test leads.
4
30R EN
Figure 1
SPECIFICATIONS
2-1 General Specifications
Display : 3 3/4 Digital Liquid Crystal Display (LCD) with a
maximum reading of 3999.
Polarity Indication : Automatic polarity indicated.
Over range Indication : “OL” indicated.
Low Battery Indication : “<“ is displayed when the
battery voltage drops below operating voltage.
Measuring Rate : 2 times/second normal.
Position Error : +/- 1% of reading.
Type of Sensing : Hall effect sensing for AC and DC
current.
Shook Proof : 4 feet drop to hardwood on concrete floor
Power Requirement : Alkaline AAA size 1.5V x 2
Battery Life : Alkaline 100 hours.
Maximum Jaw Opening : 25mm.
5
30R EN
Max/Conductor Size : 22 mm diameter.
Temperature Coefficient : 0.15 x ( spec.Acc’y ) / °C <
18°C or > 28°C .
Size : 66 mm (W) x 192 mm (L) x 27 mm (H) .
Weight : 205 grams (including battery)
Accessories : Test leads, battery, manual and carrying
case.
2-2 Environmental Conditions
Indoor use.
Maximum Altitude : 2000 Meter.
Installation Category : EN 61010-1, EN61010-2-032,
EN61010-2-033 CAT. II 600V, CAT. III 300V
Pollution Degree : 2
Operating Temperature : 0°C to 30°C (80% RH), 30°C
to 40°C ( 75% RH), 40°C to 50°C (45% RH).
Storage Temperature : -20°C to 60°C .
EMC : EN61326-1
CAT Application field
2-3 Electrical Specifications
Accuracy is ± (% reading + number of digits) at 23°C ±
5°C at less than 80% R.H.
Accuracy is specified for a period of one year after
calibration.
The circuits are not connected to mains.
The circuits are directly connected to Low-voltage installation.
The building installation.
The source of the Low-voltage installation.
6
30R EN
Input Impedance : 10MΩ // less than 100pF.
* Less than 30 digital rolling.
LCD display 0 count when the reading 1mV
AC Conversion Type :
AC conversions are ac-coupled, true rms responding,
calibrated to the rms value of a
sine wave input . Accuracies are given for sine wave at full
scale. For distorted signals,
add the following Crest Factor corrections:
For Crest Factor of 1.4 to 2.0, add 1.0% to accuracy.
For Crest Factor of 2.0 to 2.5, add 2.5% to accuracy.
For Crest Factor of 2.5 to 3.0, add 4.0% to accuracy.
(2) DC Voltage : Auto-ranging
Input Impedance : 10MΩ.
(3) Resistance Auto-ranging
Range Resolution Accuracy Over voltage
protection
400.0mV 100µV ±(2.0% rdg + 5dgt) 50Hz~60Hz *
600V rms
4.000V 1mV ±(1.5% rdg + 5dgt) 40Hz~300Hz
40.00V 10mV
±(1.5% rdg + 5dgt) 40Hz~500Hz
400.0V 100mV
600V 1V
Range Resolution Accuracy Over voltage
protection
400.0mV 100μV ±(0.5% rdg + 5 dgt)
600V rms
4.000V 1mV
40.00V 10mV ±(0.5% rdg + 2 dgt)
400.0V 100mV
600V 1V
Range Resolution Accuracy Overload
Protection
400.0Ω 100mΩ ±(1.2% rdg + 6 dgt) *1
40.00MΩ 10KΩ ±(2.5% rdg + 5dgt) *1 *3
600V rms
4.000KΩ 1Ω
40.00KΩ 10Ω
±(0.9% rdg +3 dgt) *2
±(1.2% rdg + 3 dgt) *2
400.0KΩ 100Ω
4.000MΩ 1KΩ
(1) AC Voltage : Auto-ranging
7
30R EN
* 1 : The reading maybe rolling 6 digits when the
reading is close to full scale.
* 2 : The reading maybe rolling 3 digits when the
reading is close to full scale.
* 3 : The response time is approximate 20 seconds.
* Put a low resistor in the input terminal before slide the
sliding function switch to resistor and continuity function
maybe cause a buzzer sound.
(4) Continuity
Built-in buzzer sound when measured resistance is less
than 30Ω and sound off when measured resistance is
more than > 300Ω .
Between 30Ω to 300Ω the buzzer maybe sound or off
either.
(5) DCA : Auto-ranging
For DCA & ACA :
1. Temperature Coefficient :
0.2 x (Spec.Acc'y) / °C < 20 °C or > 26°C .
2. Operating Temperature : 0°C to 30°C ( 80%RH) ,
30°C to 40°C ( 75%RH)
Range Resolution Accuracy Over voltage
protection
0~40.00A 10mA ±(1.5% rdg + 2 dgt)
400A rms
40.0A~200.0A 100mA
200.0A~300.0A 100mA ±(2.0% rdg + 2 dgt)
8
30R EN
(6) ACA : Auto-ranging
LCD display 0 count when the reading 0.1A
AC Conversion Type :
AC conversions are ac-coupled, true rms responding,
calibrated to the rms value of a sine
wave input . Accuracies are given for sine wave at full
scale. For distorted signals, add the
following Crest Factor corrections :
For Crest Factor of 1.4 to 2.0, add 1.0% to accuracy.
For Crest Factor of 2.0 to 2.5, add 2.5% to accuracy.
For Crest Factor of 2.5 to 3.0, add 4.0% to accuracy.
(7) Maximum Hold
7-1 In maximum hold function the accuracy is changed as
following. Original Accuracy + 10 digitals/ change steps of
range .
For example :
At First , the maximum hold reading on display is 100.0mV
on 400.0mV range. f a voltage vibration changes the
maximum hold reading to 120.0V. The change steps of
range are 3 steps ( 400.0mV to 4.000V to 40.00V to
400.0V) so the accuracy is needed to add 3 steps x 10
digitals / change steps of range = 30 digits.
7-2 On maximum hold mode the accuracy of resistance is
specified from 400.0Ω to 400.0kΩ range only.
(8) Auto Power Off
The meter will automatically shut itself off after
approximately 30 minutes without operation.
Range Resolution Accuracy Over voltage
protection
0 ~ 4.00A 10mA
±(1.0% rdg + 5 dgt)
400A r.m.s.
Frequency
Response
50Hz~60Hz
40Hz~1KHz
4.00A~40.00A 10mA
40.0A~200.0A 100mA
±(1.5% rdg + 3 dgt)
200.0A~300.0A 100mA ±(3.0% rdg + 3 dgt)
0~4.00A ±(2.0% rdg + 7 dgt)
4.00A~40.00A
10mA
40.0A~200.0A 100mA
±(2.5% rdg + 5 dgt)
200.0A~300.0A 100mA ±(5.0% rdg + 5 dgt)
9
30R EN
OPERATION
This instrument has been designed and tested in
accordance with IEC 61010, Safety Requirements for
Electronic Measuring Apparatus and has been supplied in
a safe condition. This instruction manual contains some
Information and warnings which have to be followed by
the user to ensure safe operation and to retain the
instrument in safe condition.
3-1 Preparation and Caution before
Measurement
1. If the meter is used near equipment that generates
electro-magnetic interference, the display may be
unstable or indicate incorrect measurement values.
2. Make sure that the battery is properly connected.
3. The instrument should only be operated between 0°C
50°C and at less than 80% R.H. except current
function is operated between 0°C 40°C .
4. Do not use or store this instrument in a high tempera
ture or high humidity environment and do not store the
unit in direct sunlight.
5. Do not replace battery with power on condition.
6. If the unit is not to be used for a long period of time ,
remove the battery.
7. Do not forget to turn off after use.
8. Maximum rated voltage to earth for voltage
measurement terminals is 600V CAT.II , 300V CAT. III
THIS INSTRUMENT MUST NOT BE USED ON
UNINSULATED CONDUCTORS AT A VOLTAGE
GREATER THAN 600V AC/DC.
!
!
10
30R EN
Figure 2
3-2 AC/DC Current Measurement
1. Set the slide switch at " A " position.
2. Open Spring-loaded clamp by pressing trigger on left
side of meter.
3. Position clamp around wire or conductor and release
clamp trigger smoothly , do not release quickly, make
sure that the clamp is entirely closed. Position the
conductors at the center of the clamp jaws for accurate
measurement . The clamp must be positioned around
only one conductors of a circuit.
If the clamp is placed around two or more current-carry
ing conductors , the meter reading will be FALSE.
4. For DC measurement , the reading is positive value
when the current flows from the upper side to the lower
side of the instrument as Fig. 2.
5. Using the zero switch to zero the reading. Due to the
high sensitivity of the clamp meter, must zero in the
same direction as in measurement to avoid interference
by external magnetic field. (see Fig.3)
11
30R EN
3-3 AC/DC Voltage Measurement
1. Set the slide switch at " V " position.
2. Connect the black test lead to the "COM" terminal on
the bottom of the meter and the red test lead to the
" V-Ω" terminal . You can now place the test probes on
the conductors to make the measurement.
3. Pushing the AC/DC switch to select AC mode or DC
mode.
Figure 3
12
30R EN
3-4 Resistance Measurement
1. Set the slide switch at " Ω " position.
2. Connect the black test lead to the "COM" terminal and
red lead to the " V-Ω" terminal.
3. Verify that the power to the circuit under test is off.
Connect test leads to the circuit to make the measure
ment.
4. Pushing the Ω / switch to select Resistance mode or
Continuity mode.
5. At mode, Built - in buzzer sounds if the resistance of
the circuit under test is less than 50Ω.
MAINTENANCE
WARNING : TO AVOID ELECTRICAL SHOCKS
REMOVE TEST LEADS FROM INSTRUMENT BEFORE
OPENING THE COVER.
4-1 General Maintenance
1. Repairs or servicing not covered in this manual should
only be performed by qualified personal.
2. Periodically wipe the case with a dry cloth and
detergent do not use abrasives or solvents.
4-2 Battery Installation or Replacement
The meter is powered by two 1.5V alkaline battery. Refer
to Fig. 4 and use the following procedure to replace the
battery.
1. Disconnect the test leads and turn the meter off.
Remove the test leads from the front terminals.
2. Remove the battery cover of case bottom from the
instrument by removing the screw and then lifting off
battery cover.
3. Lift the battery from the battery box.
4. Reinsert the battery into the battery box.
5. Replace the battery cover and reinstall the screw.
!
13
Limited Warranty
This meter is warranted to the original purchaser against
defects in material and workmanship for 3 years from the
date of purchase. During this warranty period,
Manufacturer will, at its option, replace or repair the
defective unit, subject to verification of the defect or
malfunction.
This warranty does not cover fuses, disposable batteries,
or damage from abuse, neglect, accident, unauthorized
repair, alteration, contamination, or abnormal conditions of
operation or handling.
Any implied warranties arising out of the sale of this
product, including but not limited to implied warranties of
merchantability and fitness for a particular purpose, are
limited to the above. The manufacturer shall not be liable
for loss of use of the instrument or other incidental or
consequential damages, expenses, or economic loss, or
for any claim or claims for such damage, expense or
economic loss. Some states or countries laws vary, so the
above limitations or exclusions may not apply to you.
30R EN
Figure 4
Battery CoverScrew
Battery
14
請務必閱讀
!
!安全性資訊
•若在欲進行量測的安裝過程中可能會接觸危險帶電零件，
必須使用個人防護裝備。
•鉗頭的擋板限制手握部位不得超過安全使用量程，因此請
勿在正常使用下超過擋板。
•如果撓性電源線絕緣層的內部對比色可見的話，請勿使用
彈性電流感測器。
•若未以製造商指定的方式使用設備，設備的保護作用可能
會降低。
•為避免讀表錯誤進而導致觸電和受傷，請在低電量圖示開
始閃爍時更換電池。
•請勿在爆炸性氣體或蒸氣周遭使用儀表。
•開啟電池蓋或儀表外殼前，請 先從儀表取下測試棒。
•電壓達到 30 Vac rms 、42 Vac 峰值或 60 Vdc 以上時，請
謹慎使用，因為會引發觸電危險。
•根據 IEC 61010-031 的規定，用於電源量測的探針配件應
達到第三或第四量測類別等級，且其額定電壓應至少達到
待量測電路的電壓。
儀表上和說明書內的標誌
觸電風險
請參閱說明書
DC 量測
雙重或加強絕緣保護的設備
電池
接地
AC 量測
符合歐盟指令
可在危險帶電導體周遭使用及從其移開
請勿隨意丟棄本產品。
直流和交流電流
!
30R TC
15
介紹
30R TC
1-1 拆封檢查
拆封全新的數位萬用電流鉤表後，應附有以下品項：
1. 數位萬用電流鉤表。
2. 測試棒組（一黑一紅）。
3. 攜帶盒。
4. 說明書。
5. 電 池。
1-2 正面面板
請參閱圖 1，並到下列編號步驟掌握儀表正面面板的控制項
和接頭。
1. 數位螢幕 — 數位螢幕有 3 3/4 位數的 LCD 讀出值（最大
讀數 3999）加上小數點、AC 、DC 、AUTO、HOLD、MAX、
和單位信號器。
2. 輸入端子 — 量測 ACV 或 DCV 或電阻或導通性
時，黑色測試棒永遠連到「COM」輸入端子，而紅色測試棒永
遠連到「V-Ω」輸入端子。
3. 防摔腕帶 — 防止儀器在使用時從手上滑落。
4. 功能開關 — 此開關用於選擇 V 、V 、A 、A 、 Ω 、
功 能。
5. / 最大值 (MAX) 開關 — 此開關有兩種模式，一種是保
留資料，另一種是保留最大值。
將功能開關滑動到開機，此開關就會以資料保留模式運作。
按下 / 最大值 (MAX) 開關，然後將功能開關從開機滑動
到關機，此開關就會以最大值保留模式運作。
資料保留模式 — 此模式用於保留所有功能的量測
值，按下此開關，接著就會顯示自動信號器，建立對話但顯示
內容不會更新。
注意
• 切換功能旋轉開關的位置時，請先將測試棒從測試點移開。
• 切勿將電壓源連接設定在電阻、二極體、導通性和電容位置
的功能旋轉開關。
• 請勿在高濕度環境中將儀表暴露在極端溫度下。
16
警告
!
30R TC
最大值保留模式 — 此模式用於保留所有功能量測到的最大
值。
按下此開關，「最大值 (MAX)」信號器就會開啟，然後進入最
大值保留模式。
再次按下此開關，重新開始記錄。按下此開關超過 1 秒，以 結
束最大值保留模式。
6. 歸零 (ZERO) 開關 — 此開關用於歸零螢幕上的讀數。
7. Ω / / AC / DC 選擇開關 — 另外按下「Ω / / AC / DC」
開 關，量 測「 V 」功能中的AC電壓或DC電壓，或量測「A 」
功能中的 AC 電流或 DC 電流或「Ω 」功能中的導通性。
8. 觸發器 — 按下手柄打開變壓器鉗頭。放掉手柄上的壓力
時，鉗頭就會再度關閉。
9. 護手擋板 — 設計用於保護使用者的安全。
10. 變壓器鉗頭 — 設計用於拾取流經導體的 AC/DC 電 流。
將測試棒連接到 DUT（被測件）時，請在連接帶電測試棒前先
連接共用測試棒。將測試棒移開時，先移開帶電測試棒，再移
開共用測試棒。
17
30R TC
圖 1
規格
2-1 基本規格
顯示螢幕：3 3/4 位數液晶顯示螢幕 (LCD)，最大讀數 3999。
極性指示：自動極性指示。
超壓顯示：顯 示「 OL」。
低電量顯示：顯 示「 <」時，代表電池電壓低於操作電壓
量測速率：正常為每秒 2 次。
位置誤差：讀數的 +/-1%。
感測的類型：適用於 AC 和 DC 電流的霍爾效應感測
防衝擊：4 英尺硬木和水泥地防摔
電力需求：鹼性電池 AAA 1.5V x 2
電池壽命：鹼性電池 100 小 時。
最大鉗頭打開尺寸：25mm
18
30R TC
最大導體尺寸：直徑 22mm。
溫度係數：0.15 x（指定準確度）/ °C< 18°C 或 > 28°C
尺 寸：66 mm（寬）x 192 mm（長）x 27 mm（高）。
重 量：205 克（含電池）
配 件：測試棒、電池、說明書和攜帶盒。
2-2 環境條件
室內使用。
最高海拔：2000 公 尺。
安裝類別：EN 61010-1，EN61010-2-032，EN61010-2-033
CAT. II 600V，CAT. III 300V
汙染等級：2
操作溫度：0°C 至 30°C (≦80% RH)，30°C 至 40°C (≦
75% RH)，40°C 至 50°C (≦45% RH)。
存放溫度：-20°C 到 60°C。
EMC：EN61326-1
2-3 電氣規格
Ⅰ電路未連接市電。
直接連接到低電壓設備的電路。
Ⅱ
Ⅲ建築設備。
Ⅳ低電壓設備電源。
量程 解析度 準確度 過電壓保護
400.0mV 100µV
±(2.0% 讀數 + 5 位數) 50Hz~60Hz *
600V rms
4.000V 1mV ±(1.5% 讀數 + 5 位數) 40Hz~300Hz
40.00V 10mV
±(1.5% 讀數 + 5 位數) 40Hz~500Hz
400.0V 100mV
600V 1V
(1) AC電壓：自動量程
CAT 應用領域
在 23°C ± 5°C 且相對濕度低於 80% R.H. 環境下的準確度
為 ±(% 讀數 + 位數)。
以一年為周期進行重新校準後，測試準確度。
19
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