Eclipse Eclipse MT-2017 Manual

99 Washington Street Melrose, MA 02176
Phone 781-665-1400 Toll Free 1-800-517-8431
MT-2017 Protective Function Analog Multimeter
User’s Manual
1st Edition, 2015
INTRODUCTION
This Multi-meter is an accurate, safe handheld meter that comes with robust protective holster alongside, built-in stand and hook-up design. MT-2017 is powered by batteries, offers accurate, reliable measurement of DC/AC Voltage, +/-DCV, DC Current, Resistance and Diode, LED, Transistor, Decibels, Continuity test and Capacitance with very high sensitivity quality movement. This meter is designed with double-sided glass-epoxy PCB, full overload & misused protection via two Fuses, Oxide Varactor & Diodes, as well as mirrored Aluminum dial plate. Ideal for indoor use in the laboratory, school, workshop, hobby and home applications.
SPECIFICATION
Safety Category: IEC61010-1, CAT II 1000V, CAT III 500V and
Pollution Degree 2. Common Environment: 23C5C, less than 75% RH. Operating temperature: 0C to 40C, 32 F to 104 F Storage temperature: -10 C to 50C, 14 F to 122F Operating Humidity Scope: less than 90% RH. Storage Humidity Scope: less than 80% RH. Dimensione: 171(W) x 108(D) x 37(H) MM Weight: 390g approx. (including batteries 3pcs) Accessories: One pair of test leads; Two Spare Fuses: 0.5A/250V & 10A/250V, Φ5x20mm
Test
Functions
DC V 0-0.1-2.5-10-50-
Null DCV ±-5V, ±25V 5% FSD.
AC V 0-10-50-250V
Range Accuracy Remarks
250 V-1000V
-1000V
3% FSD. 4% FSD.
For 1000V
4% FSD. 5% FSD.
1
Input Impedance: 20KΩ /V Overload Protection: Max. 1000V AC/DC BUT 0.1V/2.5V/10V 250V Max.
Input Impedance: 40KΩ /V Overload 1000V Max.
Input Impedance: 9KΩ /V Overload
For 1000V Protection: Max.
DC mA 0-0.05-2.5-25-25
X 1: 0.2 ~ 2KΩ
Capacitance (uF)
BATT Check 0 ~ 1.5V: GOOD
Transistor Check
LED, Diode via special hFE Approx. At Ω X 10 Range
0 mA, 10A
Midscale at 20Ω X 10: 2 ~ 20KΩ Midscale at 200Ω X 100: 20 ~ 200KΩ Midscale at 2000Ω X1K: 200~ 2MΩ Midscale at 0KΩ X10K: 2K ~20MΩ Midscale at 200KΩ C: 2,000uF Max.. Approx.
- ? – BAD 0 ~ 9V: GOOD
- ? – BAD
hFE: 0-1000 via special hFE socket
3% FSD. 4% FSD.
For 10A
4% of ARC of Scale Length
Value
5% of ARC of Scale Length
Approx. Value
1000V AC/DC But 10V/50V only 250V Max. Band width: 40 ~10K Hz Drop Voltage: 250 mV Overload protected by Fuses
0.5A/250V & 10A / 250V at 10A range, and Oxide Varactor.<250V AC/ DC(5s). Max. test time 15sec. for 10A. Overload protected by the Oxide Varactor & Fuse <250V AC/DC (5s).
Use the R x 1K range
Load Current: 270mA for 1.5V 25mA for 9V Overload protected by Fuse & Oxide Varactor .<250V AC/DC(5s). At Ω X 10 Range
2
Check socket Value Decibel -22 dB ~ + 62
Continuity Check
POWER Source
dB (0dB=1mW at 600Ω ) Beeper sounding under 200 Ohm
Internal Battery: R3P, AAA, 1.5V 2pcs, 6F22, NEDA1604, 9V 1pc
Approx. Value
Overload protected
At ACV ranges Via Test Leads
by Fuse & Oxide Varactor .<250V AC/DC(5s).
CALIBRATION
Ohms Zero Adjustor located at the right side of the panel. Adjust the meter pointer to the Zero mark on the right side of Ohm scale of the meter dial when the test leads are touched together. Mechanical Adjustor Screw: located right side below the center of the meter dial to set pointer to Zero mark at the left side of the scale. (-) Jack: Plug-in connector at the lower left on the panel for black, negative test lead. (+) Jack: Plug-in connector at the lower right on the panel for Red, positive test lead.
STAND & HOOK-UP
This meter can be used in any operating position. It has two rear support devices, i.e. the upper small bracket and the lower big tilt device. The upper one not only performs the light slanted position, but also hook-up the tester which makes it easier to place the tester and read the display when measuring. And the lower big tilt device can provide the steeper slant degree position easy for user’s reading too.
Hook-up
Upper Tilt
Device
Big Lower Tilt Device
3
OPERATING INSTRUCTIONS
CAUTION!
When making voltage or current measurements, develop the habit of turning off all power to the circuit under test. Connect the test leads at the desired points in the circuit, and then turn on the power while taking readings. Turn off the power before disconnecting the test leads from the circuit.
INTERNAL BATTERY CHECK
To check the battery condition, insert the black test lead into the
(-) jack. Set the range switch to the R X1 range position and short the ends of the two sides of the test leads. If the pointer can not be brought to the zero mark, replace the 1.5V cells or 9V cell. (See battery replacement.)
BEFORE OPERATING
1. Set the range switch to the proper position before making any measurement.
2. Never apply more voltage or current than the rated value in every position. When the voltage or current to be measured it not known,
3. always start with the highest range.
4. If meter indication is in the lower half of the scale and falls w
ithin the range
lower range for greatest accuracy.
5. If the meter won’t work at all, check the fuse located on the PCB. If it’s blown, replace it. (See fuse replacement.)
6. Avoid placing the meter where extreme shock or continuous vibration is enco damp places. Although very rugged, the meter is a sensitive measuring device and should be handled carefully & properly.
7. Do not check resistance, transistor, diode, LED, or capacitance when live voltage or current input across the circuit.
8. When the meter is not in use, keep the selector switch to the
of a lower scale, reset selector switch to the
untered and do not store in excessively
hot or
4
“OFF” range position, this provides direct short across meter movement for minimum needle bounce when transporting meter.
9. If you should accidentally apply excessive voltage or current on a certain range, disconnect the leads from the circuit as quickly as possible, check instrument operation on that range by applying peoper input. If the meter does not operate properly, check fuse. If it is blown replace it. (See fuse replacement.)
OPERATION PROCEDURES
DC Voltage Measurement
WARNING: USE EXTREME CARE WHEN MAKING MEASUREMENTS FOR HIGH VOLTAGE. DO NOT TOUCH TERMINAL OR PROBE ENDS.
1. Set the selector switch to the appropriate DCV range to be
used.
2. Connect the BLACK test lead to the “-COM” jack and the RED
test lead to the “+” jack.
3.
If you know the polarity of the circ black probe to the negative side.
4. If you don’t know the polarity, connect the probes to opposite
sides of the circuit and watch the pointer. If it goes to the left, reverse the probes. The RED probe will be connected to the positive.
5. Check the needle position and the get the reading on V.A scale.
uit to be tested, connect the
Null DCV (Central Zero) Measurement
At these two ranges, it can automatically judge the polarity of circuit as the pointer can move to the center line and become a Null meter.
1. Set the selector switch to the DCV ±5V or 25V range.
Connect the B
2.
test lead to the Red “+” jack.
LACK test lead to the “-
5
COM” jack and the RED
3. Set the Zero adjustor to place the pointer exactly to the
Central Zero position
4. Connect the test leads across the circuit or load under
measurement.
Take the readings on the Red dial Null DCV scale.
5. NOTE: If the needle failed to be set at Central Zero position
power of 9V battery may be weak and should be replaced by new one for normal working.
AC Voltage Measurement
WARNING: USE EXTREME CARE WHEN MAKING
MEASUREMENTS FOR HIGH VOLTAGE. DO NOT TOUCH TERMINAL OR PROBE ENDS!
1. Set the selector switch to the appropriate ACV range to be used
and connect the test leads across the circuit or load under measurement. (Polarity of the test probes is unimportant on ACV test.) Connect the BLACK test lead to the “-COM” jack and the RED
2.
test lead to the“+” jack.
3. Check the needle position and the get the reading on V.A
DC Current Measurement
WARNING: DO NOT APPLY VOLTAGE TO MEASURING
TERMINAL WHILE RANGE SWITCH IS IN CURRENT POSITION. DO NOT ATTEMPT TO MEASURE AC CURRENT.
1. Set the selector switch to the appropriate DC mA range to be
used and connect the test leads in series with the circuit or the load under measurement. If the pointer deflects to the lef reverse the probes.
2. Connect the BLACK test lead to the “-COM” jack and the RED
test lead to the Red “+” jack for Current at/less than 0.25A. For large current max. 10A, move the red test lead to the Red “10A” jack.
if need.
, the
scale.
t,
6
3. Check the needle position and the get the reading on V.A scale.
Note: Excessive current input across mA range will blow the fuse that must be replaced by a same fuse rating 0.5A/250V or 10A/250V. The max. testing time once must be not more than 15sec. and pause 5min. for next time at big current load. The Maximum terminal voltage drop is 250mV except for the 10A range.
Note: If connected incorrectly with the voltage at these ranges, quickly remove the test leads from the circuit as to avoid damage to this tester. (This tester can afford the voltage <250V DC/AC rms. for the period of 5 seconds max.)
Resistance Measurement
WARNING: DO NOT APPLY VOLTAGE TO MEASURING
TERMINAL WHILE RANGE SWITCH IS IN OHM POSITION.
1. Set the selector switch to the appropriate range to be used.
Connect the BLACK test lead to the “-COM” jack and the RED
2.
test lead to the Red “+” jack. Short the leads by touching the probes together. Pointer should
3.
read zero at the right hand end of the upper most scale, if it doesn’t, use the Ohm adjust knob on the right hand of the panel to line up the pointer with zero. (If pointer can’t be brought to zero, replace battery.)
4. Connect the test leads across the resistance to be measured.
5. Take reading on the top “” scale and multiply it by the
multiplication factor indicated by the selector switch.
6. If there is little or no pointer movement from the left side of the
scale, reset the selector switch to higher range. The effective reading scope on an Ohm meter scale is within the area of between 25 degree of Arc left side to the Midscale and 25 degree right side to the Midscale.
Note: If connected incorrectly with the voltage, quickly remove
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the test leads from the circuit as to avoid damage to this tester. (This tester can afford the voltage <250V DC/AC rms. for the period of 5 seconds max.) Diode Measurement
1. Set the selector switch to the appropriate range to be used.
NOTE: To test the diode while current below 0.060 mA at X 10K range; current below 0.15 mA at X 1K range; current below 1.5 mA at X 100 range; current below 15 mA at X 10 range; current below 150 mA at X 1 range.
2. For IF (forward current) test, put the BLACK test lead to the
“-COM” jack and the RED test lead to the Red “+” jack. And then connect the Black probe to the Positive terminal of the Diode, the Red probe to the Negative terminal of the Diode. For IR (reverse current) test, reverse the connection.
3. Read the value IF or IR of the diode on the LI scale.
4. Read the linear (forward voltage) VF of the diode on the LV
scale.
Continuity Test
WARNING: DO NOT APPLY VOLTAGE TO MEASURING
TERMINAL WHILE RANGE SWITCH IS IN OHM POSITION.
Set the selector switch to the BUZZ range. Connect the test leads to two points of circuit. If the resistance is lower than 200 Ohm approx., the Beeper sounds. Note: Battery voltage is sufficient for Buzzer operation as long as the Zero Ohm pointer can be adjusted to the Zero scale place.
Note: If connected incorrectly with the voltage, quickly remove the test leads from the circuit as to avoid damage to this tester.. (This tester can afford the voltage <250V DC/AC rms. for the period of 5 seconds max.)
8
Transistor hFE and LED Test
1. Set the selector switch to the R X 10 range.
FOR Measuring Transistor hFE
2. Take note the type of transistor “PNP” or “NPN” and then insert
the transistor terminals of the Emitter, Base and Collector separately into the proper holes of the socket on the front panel.
3. Read the approximate hFE Value directly at the hFE scale.
Note: Current 10μA. VCE 2.8V.
When the Base terminal cut, the value of Leak is Iceo for
4.
Transistor. FOR Measuring LED: Insert the transistor terminals directly into the “+” and And then check if the LED under testing is lighting.
Battery Check
1. This meter comes with two separate battery check ranges to test
either DC 1.5V or 9V batteries. Set the selector switch to the appropriate BATT range to be
2.
used.
3. Connect the BLACK test lead to the “-COM” jack and the RED
test lead to the Red “+” jack.
4.
Connect the Red test lead to the positive end of battery a Black one to the negative end of the battery to be measured.
5. Take reading on the “BATT” scale and check it good or bad as
per which portion indicated. (Note: the mark section of “?” shows that the battery may be starting to decay.)
Note: If connected incorrectly with the voltage, quickly remove the test leads from the circuit and can avoid the damage to this tester. (This tester can afford the voltage <250V DC/AC rms. for the period of 5 seconds max.)
“-” holes of the socket on the front pane
l.
nd the
9
Decibels Measurement
1. Set the selector switch to AC 10V range.
2. Connect the BLACK test lead to the “-COM” jack and the RED
test lead to the Red “+” jack.
3. Connect the test leads to the measuring circuit specially in
series with a 0.047μF/400V Metalized Polyester Capacitor. And then read the bottom Red dB scale.
4. For more dB scope, change the selector switch to the others
of ACV ranges and make the same actions. Add the appropriate number of dB scale reading as noted on the chart below. NOTE: For absolute dB measurements, circuit im must be 600 Ohm. 0 dB = 1mw dissipated in a 600 Ohm impedance (equivalent to 0.755V across 600 Ohm)
ACV RANGE ADD dB Number 50 14 250 28 1000 40
tance Measurement
Capaci WARNING: DO NOT APPLY VOLTAGE TO MEASURING TERMINAL WHILE MAKING ANY CAPACITANCE MEASUREMENTS. BEFORE TESTING ANY CAPACITORS, DISCHARGE THE CAPACITOR COMPLETELY.
1) Set the selector switch to the C (R X1K) ran
2) Connect the BLACK test lead to the “-COM” jack and the RED test lead to the Red “+” jack.
3) Connect the test leads to the capacitor to be measured (Note the polarity of capacitor).
4) Watch the needle deflection to the right topside, and read the Red C2000uF scale on the Dial.
pedance
ge.
10
TROUBLESHOOTING
Nevertheless, problems or malfunctions may occur. For this reason, the following is a description of how you can eliminate possible malfunctions yourself:
Error Possible cause
The multimeter does not work.
No measurements possible via V/mA socket. No measurements possible via 10A socket. No change in measured values.
Faulty measuring results are displayed.
Are the batteries exhausted? Check the state of the batteries and the fuse 0.5A.
Is the fuse defective? Check the fuse
0.5A (fuse replacement)
Is the fuse defective? Check the fuse 10A (fuse replacement)
Have you selected the right measuring sockets? Is the measuring range/mode correct (AC/DC)? Has null balancing of the display or a 0 Ohm calibration for the resistance measurement been carried out? Is the batteries not properly assembled in?
11
MAINTENANCE Replacement for Battery and/or Fuse should only be done after the test leads have been disconnected and POWER OFF.
1. Battery Replacement
- 1.5V Battery (Pls. see the Picture below for reference)
1). This tester uses 2pcs AAA size 1.5V batteries which are located under the lower battery cover together with the big tilt device on the lower part of the rear case.
2).Note the condition of the batteries using the procedure described above, if the battery needs to be replaced, turn the lock by 90°degree and take off the cover of the battery cabinet together with the big tilt device on the rear case.
3). Remove the spent batteries and replace them with a battery of the same type. Observing polarity as indicated battery polarity marking on the bottom of the battery compartments.
4). Replace the battery cover and turn the lock by 90°degree
again to tighten the battery cover.
- 9V Battery (Pls. see the Picture below for reference)
1). This tester uses One 9V battery which is located under the upper battery cover together with the tilt-Hookup device on the upper part of the rear case.
2).Note the condition of the battery using the procedure described above, if the battery needs to be replaced, remove the screw and open the upper cover of the battery cabinet on the rear case.
3). Take off the spent 9V battery and replace them with a battery of the same type. Observing polarity as indicated battery polarity marking on the bottom of the battery compartment.
4). Replace the battery cabinet cover and tighten the screw.
2. Fuse Replacement(Pls. see the Picture below for reference)
1). When the fuse needs replacement, use only UL-Listed
0.5A/250V fuse or 10A/250V fuse identical in physical size to the original type Φ5 x 20 mm.
12
2). Open the big lower tilt device on the rear case and then turn the lock by 90°degree and take off the cover of the battery cabinet together with the big tilt device.
3). The old fuses inside their holders located on the PCB can be visible and access to be removed. Then take off the melt fuses and install the new fuses into their original places.
The 0.5A/250V fuse is at the left side and 10A/250V fuse at
the right side.
4). Replace the battery cover and turn the lock by 90°degree
again to tighten the lower battery cover. NOTE: 2pcs stand-by fuses are provided and located beside the batteries under the lower battery cover with rating marked below the fuses.
Lock for lower 1.5V Battery Cover
Lower 1.5V Battery Cabinet inside and Fuses Layout
9V
Screw
Hole
Battery
13
MT-2017 指針型防誤測三用電錶
操作使用說明書
特點: 本機是指針式,防誤測全保護,斜立型三用電錶(附晶體 LED 座,短 路蜂鳴及 10A 檔,及鍍金表筆)。具有以下基本特點和參數如下:
- 斜立型,兩個可調後蓋支撐架。上部支架可拉出後,向上轉動 90 度, 壓下可固定; 並附帶掛鈎設計(支撐架向上轉動 180 度伸出後蓋, 以便懸掛)。下部大支撐架可拉出以更大角度斜立。
- 後蓋下部特別設置了 1.5V 電池倉和用鎖扣固定的電池蓋,以非常 方便用戶拆卸和更換電池及保險管。
- 配置玻璃釺維環氧樹脂鍍金盤雙面電路板,日系電池,通過 CE 認證。
- 檔位切換簧片採用彈簧寶石軸承及二極體雙向限幅電路
- 具有全面的防誤測超載保護電路及速斷型保險絲多重保護
- 具有緊湊的兩側軟性防滑減振保護套
- 可測直流電壓和中間零位正負直流電壓,直流電流(最大 10A),交 流電壓,電阻,電晶體,二極體,LED,電池,短路蜂鳴, 和電容 (2000uF Max.) 等.
- 輸入阻抗:DC20Kohm /VAC 9Kohm/V
- 直流電壓:0.1/2.5/10/50/250/1000V 六檔
- 中間零位正負直流電壓:±5V/25V 兩檔
- 直流電流:50μA/2.5m/25m/250mA/10A 五檔
- 交流電壓:10/50/250/1000V 四檔
- 電 阻:1/10/100/1K/10K 四檔
- 電 池:1.5/9V
- 電 容:CRX1K),Max. 2,000 uF;
- 標準環境條件:23C5C, 濕度< 75% RH
- 工作環境範圍:0C ~ 40C, 濕度< 90% RH
- 儲存條件:-10C ~ 50C, 濕度< 80% RH
- 電錶外形尺寸:171(長)x 108(寬)x 37(高)mm
- 電錶重量:390 克(包括電池)
二檔
14
規格表:
測試功能 檔位 準確度 說明
直流電壓
DCV
正負直流電壓 Null DCV
交流電壓 ACV
直流電流
DCA
電阻
電 容
0-0.1-2.5-10-50-25
0-1000V
DC ±5V/±25V ±5% FSD.(滿刻度)
0-10-50-250V-100
0V
0-0.05-2.5-25-250
mA, 10A
X1:0.2~2K (中值:20)
X10:2~20K (中值:200)
X100:20~200K (中值:2000)
X1K:200~2M (中值:20K)
X10K:2K~20M (中值:200K)
C:2,000uF 最大值 參考值 使用 Rx1K 檔
±3%FSD(滿刻度)
±4%FSD(1000V )
±4%FSD(滿刻度)
±5%FSD(1000V
檔) 頻率範圍:
40~10KHz
±3%FSD(滿刻度) ±4%FSD(10A )
±4%ofARC(弧長)
Capacitance
電池測量 BATT Check
0~1.5V:GOOD
-?-BAD
0~9V:GOOD-?-BA
D
參考值
三極管檢測 hFE: 0-1000 參考值 使用 Ω×10
LED, Diode Check
參考值 使用 ×10
輸入阻抗:20K/V 超載:Max 1000V 但在 0.1V/2.5V/10V 各 檔,250V Max.
輸入阻抗:40K/V; 超載:Max.250V
輸入阻抗:9K/V 超載:Max.1000V 10V/50V 檔,250V Max.
壓降:250mV 超載保護:0.5A/250V 保險絲管;在 10A 檔,超 載保護:F10A/250V, 大電 流測試時間最多 15 秒。
超載:最高 AC/DC250V, 最低 DC/AC50V 超載最大測試時間 5 秒。
負載電流:270mA(1.5V 電 池), 25mA(9V 電池) 超載:最高 AC/DV250V, 最低 DC/AC 50V, 超載最大測試時間 5 秒。
15
Continuity Check
內部電源
200 歐姆左右以
內,蜂鳴器會響。
1.5V5 號電池:2 節, 6F22.9V 矩形電 池:1 節
超載:最 高 AC/DC 250V, 最低 DC/AC 50V 超載最 大測試時間 5 秒。
指針防誤測斜立型三用電錶指針閱讀參考表
測試
Te st
電阻(歐姆) Resistance()
直流電壓
(伏特)
DC Volt(V)
正負直流電壓(伏特)
Null DC Volt(V)
直流電流
(安培)
DC Current(A)
交流電壓
(伏特)
AC Volt(V)
hFE ×10 IC/IB ×1
量程檔位 Range Position
×1 ×10 ×100 ×1K ×10K
DC 0.1V
2.5V 10V 50V 250V 1000V
DC ±5V ±25V DC 50μA
2.5mA 25mA 250mA 10A
AC 10V
50V 250V 1000V
指標刻度讀數 Scale to read
×1
10 250 10 50 250 10
-5-0-+5
-25-0-+25 50 250 250 250 10
10V
50 250 10
倍數 Multiplied
×10 ×100 ×1000 ×10000 ×0.01 ×0.01 ×1 ×1 ×1 ×100 ×1 ×1 ×1 ×0.01 ×0.1 ×1 ×1 ×1 ×1 ×1 ×100
16
二極體 Diode
×10K
×1K ×100 ×10 ×1
μA×1
μA×10 μA×100
mA×1 mA×10
測量注意事項:
1. 指針調零 調整零位調整器,使指針和左側的零位對齊,不必每次測量前都
調,但是在開始測量之前,指標都必須確認指標在零位上。
2. 測試棒的連接 紅色棒插“+”插孔,黑色棒插入“-COM”插孔。
3. 電錶內部電池檢查
將表棒按以上規定方式接入好,再將檔位旋鈕轉到 Rx10 檔位。
然後,將表棒的兩端短路連接。這時,檢查指針是否正常回歸零 位。若不能,則電池電力不足,應要更換新電池。
4. 量程的選擇
選擇測量檔位時,旋鈕上的“三角形”記號對準規定的適當量程。
測量工作程式:
1. 直流電壓:
用於測量電池、放大器電路、通訊設備電源、電子管和電晶體電 路偏 壓的直流電壓。6 個檔位元中的每一個檔位元標記,分別表 示該檔的最大電壓示值。
(※不確定之直流電壓,應從最大值依序向下調整量測)
2. 中值零位正負直流電壓:(不可測量任何交流電壓!)
本功能專用檢測電子電路的正負電平。通過表棒接入電路,可直
接查看刻度讀數。
注意:在此檔位時,可用歐姆電調零將指針設置在中間位置。若
無法調到中值零位,則有可能是 9V 電池電量不足。請檢查 電池。
3. 交流電壓:
用於測量商業交流電壓、交流電源電路、交流放大信號級等。4 個 檔位元中的每一個檔位元標記,分別表示該檔的最大電壓示值.(※ 不確定之交流電壓,應從最大值依序向下調整量測)
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4. 直流電流:(不可測量任何交流電流或電壓!)
用於測量直流電源控制裝置的電流消耗、電晶體電路的工作電流 等。5 個檔位元中的每一個檔位元標記,分別表示該檔的最大電流 示值。 (※不確定之直流電流,應從最大值依序向下調整量測) 注意:當在 10A 檔測試大電流時,單次測試時間不能超過 15 秒。 而且兩次測試間隔時間不少於 5 分鐘。 本機具有防誤測保護電路。可短時(5 秒內)承受低於 AC/DC 250V 的電壓衝擊,僅爆保險絲。
5. 電阻:(※此功能不能測試帶電壓電路)
測量電阻值和測試線路和線路間的連通性。5 個檔中的每一個檔
位元標記,分別表示該檔乘數。(K X1000)
注意:本機在電阻檔具有防誤測保護電路。可短時(5 秒內)承
受低於 AC/DC 250V 的電壓衝擊,僅爆保險絲。
6. 連通性測試(Buzz) (※此功能不能測試帶電壓電路)
將量程選擇旋鈕置於 Buzz 檔, 當被測電路<200ohm, 蜂鳴器鳴叫。 注意:本機在檔位元具有防誤測保護電路。可短時(5 秒內)承
受低於 AC/DC 250V 的電壓衝擊,僅爆保險絲。
7. 電池測試:(※電池能用於小的晶體管收音機,但不能用作裝的電 源。)
好電池:指針停留在綠色(GOOD)範 圍 內。電 量 不 足:指 針 停 在 “?”
尚可使用範圍內。 壞電池:指標 注意:本機在檔位元具有防誤測保護電路。可短時(5 秒內)承
8. dB 測試:
本機測量 dB 值時,要接入表棒並串接一個 0.047μF/400V 電解電 容,然後檢視電錶讀數。 測量在 10V 檔上進行,可直接讀取 dB 刻度(-10dB~+22dB)。 測量在 50V 檔上進行時,刻度讀值要加 14dB,才是實際 dB 值。 測量在 250V 檔上進行時,刻度讀值要加 28dB。 測量在 1000V 檔上進行時,刻度讀值要加 40dB。
停在紅色(BAD)區域。
受低於 AC/DC 250V 的電壓衝擊,僅爆保險絲。
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例如,在 1000V 檔上最大可測 dB 值是 22+40=62dB
9. hFE(直流放大倍數)和發光二極體(LED)測試:
將量程選擇旋鈕置於“OHM”檔上之 X10 hFE 測試: (1) 調節 0 調整器使指針和零位對齊-將電晶體的三個管腳直接
插入面板上的 hFE 端座。 (※注意區分電晶體的類別“PNP”“NPN”) (2) hFE 刻度讀出顯示值,所讀之值是 IC/IB,即被測體的直流
放大倍數。
LED 測試:
(1) LED 的兩個腳按正負極性直接插入面板上的 LED “+”,“-”
兩個端座。 (2) 檢查 LED 是否正常發光。
10. 二極體測試: (1) 將量程選擇旋鈕置於“”檔上有選擇的量程位置,X10K 用於
0~60μ A 測試,X1K 用於 0~150μ A,X100 用於 0~1.5m A X10 0~15mAX1 用於 0~150mA 測試。
(2)
將電錶與二極體連接測 IF(正向電流),將電錶的“COM”端與
二極體陽極相連,“+”端與二極體陰極相連,對於 IR(反向電 流)測試連接方法和 IF 相反。
(3) LI 刻度線讀出 IF 或 IR (4) 在測試 IF IR 同時在 LV 刻度上,讀出二極體正向(反向)電壓。
11. 電容測試:
注意:檢測前,須將電容放電並將電錶調零。(※此功能不能測 試帶電壓電路)
a.將電錶量程選擇旋鈕置於“x1k”檔。 b.用表棒連接電容,並注意“+”,“-”極性。
c.觀察指標偏轉最大時,電錶刻度板上紅色 C 刻度。
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常見問題故障及處理 若用戶在使用中,發現本機出現一些普通常見問題故障,可參照下表 自行進行分析處理:
問題和故障 原因和處置 指針無反應,不動 表棒是否接觸良好? 內部保險管是否
燒斷? 內部電池是否正確裝好,並接觸到位? (參閱有關電池和保險管更換說明)
指針指示異常 檔位量程是否選擇正確? 交流和直流
模式是否使用正確? 內部電池是否電量不足?(參閱有關電 錶內部電池檢查說明)
指針無法正常歸零位 內部電池是否接觸良好?是否電量不
足?(參閱有關電錶內部電池檢查說明) 內部機芯處的遊絲是否並圈?可試用力 將本機甩動幾下或在手中拍擊幾下後, 看是否恢復正常。
DC10A 檔不能工作 表棒是否接觸良好,正確接入?
內部 10A 保險管是否裝好或燒斷? (參閱有關保險管更換說明)
日常維修
維修更換電錶內部電池和保險絲管時,必須將表棒從電錶上移調,並 切斷電源。
1). 1.5V 電池更換:(參閱下圖)
打開電錶後面的下部大支撐架,將下部的電池倉後蓋的鎖扣旋轉 90
度,既可將電池倉後蓋連支撐架卸下,然後從電池座中拿出不好的 電池。再將新的同規格電池放入原位,並注意電池的正負極性。然 後,蓋上後蓋並將鎖扣旋轉 90 度而鎖住。
2). 9V 電池更換:(參閱下圖) 打開電錶的上部電池倉後蓋,從電池座中拿出不好的電池。再將新的
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同規格電池放入原位,並注意電池的正負極性,然後,蓋上後蓋並擰 緊螺釘。
3). 保險絲管更換:(參閱下圖) 打開電錶後面的下部大支撐架,將下部的電池倉後蓋的鎖扣旋轉 90 度,既可將電池倉後蓋連支撐架卸下。 即可看到電路板上的兩個並 列保險管(左邊的為 0.5A/250V, 右邊為 10A/250V), 從保險絲座中拿 出不好的保險絲管。再將新保險絲管(0.5A/250V 10A/250V, Φ5*20mm)換上 。必須用同規格 UL 認證的保險絲管。 然後,蓋上 後蓋並將鎖扣旋轉 90 度而鎖住。
(本電錶的下部電池倉的左右兩邊一般各設有 1 個備用保險絲管)。
9V 電池
螺絲孔
1.5V 電池蓋鎖扣
1.5V 電池倉和保險管位置
位置
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MT-2017 型防误测三用
操作使用
: 本机是指式,防误测全保,斜立型三用表(附晶体 LED 座,短 路蜂鸣及 10A 档,及金表笔)。具有以下基本特点和参数如下:
- 斜立型,两个架。上部支架可拉出后,向上转动 90 度,
下可固定; 并附带挂钩设计(支撑架向上转动 180 度伸出后盖,
以便挂)。下部大支架可拉出以更大角度斜立。
- 下部特别设置了 1.5V 和用扣固定的,以非常
方便用拆卸和更换电池及保管。
- 配置玻璃钎维环盘双路板
- 位切簧片采用承及二极管向限幅
- 具有全面的防误测护电路及速型保险丝多重保
- 具有紧凑两侧软性防滑振保
- 直流电压和中零位正直流电压,直流 流( 最 大 10A),交 电压阻,晶体管,二极管,LED池,短路蜂鸣, (2000uF Max.) 等.
- 入阻抗:DC20Kohm /VAC 9Kohm/V
- 直流电压0.1/2.5/10/50/250/1000V 六檔
- 零位
- 直流流:50μA/2.5m/25m/250mA/10A 五檔
- 交流电压10/50/250/1000V 四檔
- 阻:1/10/100/1K/10K 四檔
- 池:1.5/9V 二檔
- 容:CRX1K),Max. 2,000 uF;
- 件:23C5C, 湿< 75% RH
- 工作境范:0C ~ 40C, 湿< 90% RH
- 件:-10C ~ 50C, 湿< 80% RH
- 表外
- 表重量:390 克(包括池)
直流电压±5V/25V
形尺寸:171x 108x 37(高)mm
,日系电池,通CE 认证。
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格表:
测试功能 檔位 准确度
直流电压
DCV
直流电压 Null DCV
交流电压 ACV
直流
DCA
0-0.1-2.5-10-50-25
0-1000V
DC ±5V/±25V ±5% FSD.(刻度)
0-10-50-250V-100
0V
0-0.05-2.5-25-250
mA, 10A
X1:0.2~2K (中值:20)
X10:2~20K (中值:200)
X100:20~200K (中值:2000)
X1K:200~2M (中值:20K)
X10K:2K~20M (中值:200K) C:2,000uF 最大值考值 使用 Rx1K 檔
±3%FSD(刻度)
±4%FSD(1000V )
±4%FSD(刻度)
±5%FSD(1000V )
率范
40~10KHz
±3%FSD(刻度) ±4%FSD(10A )
±4%ofARC()
Capacitance
BATT Check
0~1.5V:GOOD
-?-BAD
0~9V:GOOD-?-BA
D
考值
三极管检测 hFE: 0-1000 参考值 使用 Ω×10
LED, Diode Check
考值 使用 ×10
入阻抗:20K/V Max 1000V 但在 0.1V/2.5V/10V 各檔,
250V Max.
入阻抗:40K/V; Max.250V
入阻抗:9K/V Max.1000V 10V/50V 檔,250V Max.
降:250mV 0.5A/250V 险丝管;在 10A 檔,超 F10A/250V, 大测试时间最多 15 秒。
:最高 AC/DC250V, 最低 DC/AC50V 最大测试时间 5 秒。
负载电流:270mA(1.5V 池), 25mA(9V 池) 超:最高 AC/DV250V, 最低 DC/AC 50V, 超最大测试时间 5 秒。
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Continuity Check
200 歐姆左右以
会响
:最高 AC/DC 250V, 最低 DC/AC 50V 最 大测试时间 5 秒。
1.5V5 号电池:2 6F22.9V 矩形池: 1
误测斜立型三用表指针阅读参考表
测试
Te st
阻(歐姆) Resistance()
直流电压
(伏特)
DC Volt(V)
直流电压(伏特)
Null DC Volt(V)
直流
(安培)
DC Current(A)
交流电压
(伏特)
AC Volt(V)
hFE ×10 IC/IB ×1
量程檔位 Range Position
×1 ×10 ×100 ×1K ×10K
DC 0.1V
2.5V 10V 50V 250V 1000V
DC ±5V ±25V DC 50μA
2.5mA 25mA 250mA 10A
AC 10V
50V 250V 1000V
刻度读数 Scale to read
×1
10 250 10 50 250 10
-5-0-+5
-25-0-+25 50 250 250 250 10
10V
50 250 10
Multiplied
×10 ×100 ×1000 ×10000 ×0.01 ×0.01 ×1 ×1 ×1 ×100 ×1 ×1 ×1 ×0.01 ×0.1 ×1 ×1 ×1 ×1 ×1 ×100
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二极管 Diode
×10K
×1K ×100 ×10 ×1
μA×1
μA×10 μA×100
mA×1 mA×10
量注意事
1. 针调 整零位整器,使指和左的零位对齐,不必每次量前都
,但是在量之前,指都必在零位上。
2. 测试棒的 色棒插“+”插孔,黑色棒插入“-COM”插孔。
5.
表棒按以上定方式接入好,再将档位旋钮转Rx10 檔位。
然后,将表棒的两端短路连接。这时,检查指针是否正常回归零 位。若不能,则电力不足,要更池。
6. 量程的选择
选择测,旋上的“三角
”记号对定的适量程。
量工作程序:
1. 直流电压:
用于测量电池、放大器路、通讯设备电源、子管和晶体管 路偏 压的直流电压。6 文件位中的每一个文件位标记,分别表文件的最大电压示值。
(※不确定之直流电压应从最大值依序向下整量)
2. 中值零位正直流电压:(不可量任何交流电压!)
本功能检测电路的正负电平。通表棒接入路,可直
接查看刻度读数
注意:在
,可用歐姆电调针设置在中位置。若到中值零位,则有可能是 9V 量不足。请检池。
3. 交流电压: 用于量商业交流电压、交流电源电路、交流放大信号级等。4 个 文件位中的每一文件位标记,分表示文件的最大电压示 值.(※不确定之交流电压应从最大值依序向下整量测)
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4. 直流流:(不可量任何交流流或电压!)
用于量直流源控制置的流消耗、晶体管路的工作电流 等。5 个文件位中的每一个文件位标记,分别表示该文件的最大电 流示值。
(
不确定之直流流,应从最大值依序向下整量测) 注意:当在 10A 档测试测试时间不能超15 秒。 而且两次测试间隔时间不少于 5 分 本机具有防误测保护电路。可短时(5 )承受低于 AC/DC 250V电压冲击爆保险丝
5. 阻:( 阻值和测试线路和线通性。5 个文件中的每一
注意:本机在阻文件具有防误测护电路。可短5
6. 通性测试(Buzz) ( 量程选择置于 Buzz 文件,测电路<200ohm, 叫。 注意:本机在文件位具有防误测护电路。可短5 )承
7. 测试:(
池:指停留在绿色(GOOD)范围内量不足:指停在“?”
池:指停在(BAD)域。 注意:本机在文件位具有防误测护电路。可短5 )承
8. dB 测试
此功能不能测试带电压电路)
文件位标记,分别表示该文件乘数。(K X1000)
承受低于 AC/DC 250V 的电压冲击爆保险丝
此功能不能测试带电压电路)
受低于 AC/DC 250V 的电压冲击爆保险丝
电池能用于小的晶体管收音机,但不能用作
源。)
尚可使用范围内
受低于 AC/DC 250V 的电压冲击爆保险丝
本机测量 dB 值时,要接入表棒并串接一个 0.047μF/400V 电解电 容,然后检视电读数
量在 10V 行,量在 50V ,刻度值要加 14dB,才是实际 dB 值。量在 250V ,刻度值要加 28dB。 量在 1000V ,刻度值要加 40dB。
可直接取 dB 刻度(-10dB~+22dB)
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例如,在 1000V 上最大可测 dB 值是 22+40=62dB
9. hFE(直流放大倍数)光二极管(LED)测试 量程选择置于“OHM”檔上之 X10 hFE 测试 (3) 调节 0 整器使指和零位对齐-将晶体管的三直接
插入面板上的 hFE 端座。
(
注意分晶体管的类别“PNP”“NPN”)
(4) hFE 刻度读出示值,所读之值是 IC/IB,即 被 体的直流
放大倍数。
LED 测试
(3) LED 两个脚按正极性直接插入面板上的 LED “+”,“-”
两个端座。
(4) LED 是否正常光。
10. 二极管测试
(5) 量程选择置于”档上有选择的量程位置,X10K 用于
0~60μ A 测试X1K 用于 0~150μ AX100 用于 0~1.5m A X10 0~15mAX1 用于 0~150mA 测试
(6) 将电表与二极管IF(正向流),将电表的“COM”端与
二极管极相连,“+”端与二极管极相连,对于 IR(反向 流)测试连接方法
(7) LI 刻度线读IF 或 IR (8) 测试 IF IR 在 LV 刻度上,出二极管正向(反向)电压
11. 测试
注意:检测前,须将电容放将电零。( 试带电压电路)
a.将电表量程选择置于“x1k”檔。 b.用表棒容,并注意“+”,“-”极性。
c.察指最大表刻度板上色 C 刻度。
IF 相反。
此功能不能
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见问题故障及理 若用户在使用中,发现本机出现一些普通常见问题故障,可参照下表 自行行分析理:
问题和故障 原因和置 指针无,不 表棒是否接触良好? 部保管是否
烧断池是否正确好,并接触到位?
参阅关电池和保管更换说明)
指示异常 位量程是否选择正确? 交流和直流
模式是否使用正确? 池是否量不足?(参阅关电明)
针无法正常零位内部电池是否接触良好?是否电量不
足?(参阅有关电表内部电池检查说明)
部机芯的游是否并圈?可用力本机甩几下或在手中拍几下后,
看是否恢复正常。
DC10A 檔不能工作 表棒是否接触良好,正确接入?
10A 管是否好或烧断? (参阅管更换说明)
日常
修更换电池和保险丝,必 须将表棒从电表上移,并 切断电源。
1). 1.5V 池更:(参阅图)
开电表后面的下部大支架,下部的扣旋90
度,既可将电盖连架卸下,然后从电池座中拿出不好的池。再新的同池放入原位,并注意池的正极性。然
后,上后将锁扣旋转 90 度而住。
2). 9V 池更:(参阅图)
开电表的上部从电池座中拿出不好的池。再新的
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池放入原位,并注意池的正极性,然后,上后拧 紧
3). 保险丝管更:(参阅)
开电表后面的下部大支架,下部的扣旋转 90 度,既可将电盖连架卸下。 即可看到路板上的两个并 列保管(左为 0.5A/250V, 边为 10A/250V), 从险丝座中拿 出不好的保险丝管。再新保险丝管(0.5A/250V 10A/250VΦ5*20mm换上。必用同UL 认证的保险丝管。 然后,盖上将锁扣旋转 90 度而住。
(本表的下部的左右两边一般各1 个备用保险丝管)。
9V 电池
螺丝孔
位置
1.5V 电池盖锁扣
1.5V 电池仓和保险管位置
29
购买日期 公司名
联络电话 电 联络地址
品型 MT-2017-C
区产品保固卡
店章
在正常使
耗材、消耗品)。
品保固卡需上店章、日期章,其保固效力始生效。 本卡妥善保存,如需修服务时出示本卡以为证明。 保固期后,属调整、保或是修性之服酌收修工
时费用。若有零件需更零件
品保固
保固期限,如有下列情者,修中心得酌收材料成本或修
费(由本公司修人判定):
对产品表面的损伤,包括外或刮痕
因事故、火化、其他危害,或自然灾难所造成的
非服证内容:
机件本体外之消耗品:如池...等消耗品
机件本体之外之附配件:如耳机源供器,记忆
三.期限之修或服务,未更零件,依公司保固
修政策酌收服务费。 服务电话: 0755 83692415 / 83692986 /83246594 / 83247554 务传: 0755 83692143
用情下,自原购买日起 12 月免费维修保(不含
用、疏忽、不
修改产品或者任何其他超出预期使用范围的原因所造成的
害。
卡,CD 等附配件。
测试,未开产品修理,
30
寶工實業股份有限公司
PROKIT’S INDUSTRIES CO., LTD
©2015 Prokit’s Industries Co., LTD. All rights re
2015001(C)
99 Washington Street Melrose, MA 02176
Phone
781-665-1400 Toll Free 1-800-517-8431
31
served
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