CN202600013U - Novel multifunctional clamp meter dedicated to electric power - Google Patents
Novel multifunctional clamp meter dedicated to electric power Download PDFInfo
- Publication number
- CN202600013U CN202600013U CN 201220248161 CN201220248161U CN202600013U CN 202600013 U CN202600013 U CN 202600013U CN 201220248161 CN201220248161 CN 201220248161 CN 201220248161 U CN201220248161 U CN 201220248161U CN 202600013 U CN202600013 U CN 202600013U
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- Prior art keywords
- split
- core type
- main body
- illuminating lamp
- type meter
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- Expired - Fee Related
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Abstract
The utility model provides a novel multifunctional clamp meter special dedicated to electric power. The clamp meter comprises a main body, wherein a first lighting lamp is arranged at the front end of the main body, and a second lighting lamp is arranged at the tail end of the main body. With the first and the second lighting lamps respectively arranged at the front end and the tail end, an operator can see a jaw, as well as function keys and a function knob on an operation panel, and test parameter displayed on a display screen, very clearly for test operation in a dark place.
Description
Technical field
The utility model relates to split-core type meter, particularly relates to the multi-functional split-core type meter of a kind of electric power special new.
Background technology
In electron trade, often need use various testing tools and test some such as parameters such as resistance, electric capacity, electric current, voltage, diodes.A kind of alternating current-direct current split-core type meter that is is wherein arranged, and this split-core type meter has main body, and guidance panel is provided with function knob and function key; Body front end is provided with the jaw that is made up of binding clip one and binding clip two, and the main body side is provided with the trigger that is used to open jaw, and it is comparatively convenient that this split-core type meter uses; But part also comes with some shortcomings; For example, there is not illuminating lamp on the main body, when the user stretches into split-core type meter narrow and small place, space and carries out test jobs; Because insufficient light, operating personnel are difficult for seeing clearly the test parameter that shows on function key, function knob and the display screen on jaw, the guidance panel; When rather dark place tested, because without a licence obvious results fruit needs the human electric torch and throws light on to the tester, perhaps hand of tester was taken split-core type meter, and the adept torch of another hand is measured, and uses inconvenience, was not easy to tester's operation.
The utility model content
The purpose of the utility model provides the multi-functional split-core type meter of a kind of electric power special new, in order to solve the defective of above-mentioned prior art.
In order to achieve the above object; The technical scheme of the utility model is: the multi-functional split-core type meter of a kind of electric power special new, and it comprises main body, the front end of said main body is provided with first illuminating lamp; Its end is provided with second illuminating lamp, and said first illuminating lamp and second luminous lamp switch are arranged on the main body.
Further, said first illuminating lamp and second illuminating lamp are led light source.
Adopt technique scheme; The technique effect of the utility model has: because main body is provided with illuminating lamp; When operating personnel carried out test jobs at rather dark place, operating personnel can see the test parameter that shows on function key, function knob and the display screen on jaw, the guidance panel very easily clearly.
Below in conjunction with accompanying drawing and instance the utility model is further described.
Description of drawings
Fig. 1 is the utility model structural front view;
Wherein: 1, main body, 2, first illuminating lamp, 3, switch, 4, display screen, 5, the COM hole, 6, the function knob, 7, function key, 8, V Ω hole, 9, trigger, 10, binding clip one, 11, binding clip two, 12, jaw, 13, second illuminating lamp, 14, guidance panel.
Embodiment
As shown in Figure 1; A kind of test voltage, electric current, electric capacity, isoparametric Electronic Testing instrument of diode of being used for; It comprises main body 1; The front end of said main body 1 is provided with first illuminating lamp 2, and its end is provided with second illuminating lamp 13, and said first illuminating lamp 2 and second illuminating lamp, 13 switches 3 are arranged on the main body 1.Said guidance panel 14 is provided with function knob 6, function key 7, switch 3, display screen 4, COM hole 5 and V Ω hole 8.The front end of main body 1 is provided with the jaw 12 that is made up of binding clip 1 and binding clip 2 11, and main body 1 side is provided with the trigger 9 that is used to open jaw 12.Measuring DC voltage, alternating voltage, resistance, electric capacity, diode, inspection circuit on-off etc. insert V Ω hole 8 with red test pencil, and black meter pen inserts COM hole 5.When operating personnel carry out test jobs at rather dark place; Press the switch 3 that is arranged on the main body; First illuminating lamp 2 and second illuminating lamp 13 are lighted; Operating personnel can see the test parameter that shows on function key 7, function knob 6 and the display screen 4 on jaw 12, the guidance panel 14 very easily clearly, and first illuminating lamp 2 and second illuminating lamp 13 are led light source.
When using the split-core type meter measuring voltage that the utility model provides, choose suitable range, if measuring DC voltage; Function knob 6 is rotated to DC voltage retaining V-(DCV),, function knob 6 is rotated to alternating voltage retaining V ~ (ACV) if measure alternating voltage; Red test pencil is inserted V Ω hole 8, and black meter pen inserts COM hole 5, and circuit measuring voltage is advanced in parallel connection then; If it is much that unclear tested voltage has, then to select maximum range to measure.Measure and needn't consider both positive and negative polarity galvanic the time, measure instead because digital watch, is measured direct current signal unlike pointer gauge, indicator is counter to be beaten, and digital watch is only understood displaying symbol, explains that signal is to get into from black meter pen.
When the split-core type meter that uses the utility model to provide is measured electric current, red test pencil is inserted V Ω hole 8, black meter pen inserts COM hole 5.With measuring electric current in red test pencil and the black meter pen string inlet wire road,, explain to surpass range if display screen 4 shows 1A; Need to increase range and measure, when measuring big electric current, must note the time; The correct measurement time should be at 10S-15S, if long-time the measurement, because electric current retaining constantan or copper-manganese shunt resistance; The overheated change in resistance that causes causes measuring error.
When using the split-core type meter measuring resistance that the utility model provides, at first function knob 6 is rotated to power block and select suitable range, if it is much not know that the measured resistance resistance has; Then should select maximum range, then red test pencil inserted V Ω hole 8, black meter pen inserts COM hole 5; Be connected on the two ends of resistance, resistance does not have both positive and negative polarity, shows 1 Ω if find display screen 4 in measuring; Then to use highest gear to measure one time, show that this resistance is still 1 Ω, this resistive-open then is described if use highest gear to measure display screen 4; If display screen 4 shows that resistance is 001 Ω in measuring, explain that this resistance inside is breakdown, in the time of measuring resistance; At first need first short circuit test pencil to measure the resistance value of test pencil line, generally at 0.1-0.3 Ω, resistance can not surpass 0.5 Ω; If resistance surpasses 0.5 Ω, explanation causes owing to the split-core type meter supply voltage is on the low side, perhaps is exactly that cutterhead contacts loosening causing with circuit board; Do not remove to hold the test pencil metal section and part when measuring,, cause measuring error in order to avoid introduce human body resistance with hand.
When using the split-core type meter measuring diode that the utility model provides, function knob 6 is rotated to the diode retaining, the open-circuit voltage in digital watch diode retaining V Ω hole 8 and COM hole 5 is about 2.8V; Red test pencil is inserted V Ω hole 8, and black meter pen inserts COM hole 5, and red test pencil is connect diode cathode; Black meter pen connects negative pole, measuring diode forward resistance value, otherwise the back resistance value of measuring diode; Because the anodal positively charged of red test pencil contact internal cell in digital watch, and black meter pen contact internal cell negative pole is electronegative, just in time opposite with pointer gauge; The red test pencil contact of power block internal cell negative pole in pointer gauge, black meter pen contact internal cell is anodal.If the forward resistance value is 300 Ω-600 Ω, the back resistance value surpasses 1000 Ω, explains that then diode is intact; If display screen 4 shows that forward and back resistance value are 1 Ω; Diode open-circuit is described, if display screen 4 shows that forward and back resistance value are 001 Ω, explain that diode is breakdown; If forward and back resistance value difference are few, explain that then diode quality is relatively poor.
What the utility model adopted is digital split-core type meter, and digital split-core type meter is an instantaneous sample formula instrument.It adopts every 0.3S to get once appearance to show measurement result, and each sometimes sampling result is very close, and incomplete same, and it is just convenient not as pointer-type to read the result.The general inside of pointer-type split-core type meter does not have amplifier, so internal resistance is less.Digital split-core type meter is because discharge circuit has been adopted in inside, and internal resistance can be done very greatly, often at 1M Ω or bigger.(promptly can obtain higher sensitivity).This makes can be littler to the influence of circuit-under-test, and measuring accuracy is higher.The pointer-type split-core type meter is less owing to internal resistance, and adopts discrete component to constitute the shunting bleeder circuit more.So frequency characteristic is uneven (digital relatively), and the frequency characteristic of pointer split-core type meter is better relatively.Pointer-type split-core type meter inner structure is simple, so cost is lower, function is less, safeguards that simply the overcurrent-overvoltage ability is stronger.Circuit such as multiple vibration, amplification, frequency division protection have been adopted in digital split-core type meter inside, so function is more.Such as measuring temperature, frequency (a lower scope), electric capacity, inductance etc.So digital split-core type meter is because inner structure uses integrated circuit overload capacity relatively poor more, (some can self shifter now, protection etc. automatically, but use complicated), generally also be difficult for after the damage repairing.Digital split-core type meter output voltage lower (being no more than 1V usually).Test inconvenience (like controllable silicon, light emitting diode etc.) for the special element of some voltage characteristics.Pointer-type split-core type meter output voltage is higher, electric current is bigger, can test controllable silicon, light emitting diode etc. easily.
The split-core type meter that the utility model provides in use, the voltage of test line will be lower than the rated voltage of split-core type meter.When measuring the electric current of high-tension line, wear insulating glove, wear insulated shoes, stand on the insulating mat.Jaw 12 wants tight close can not chargedly change range.Before measuring resistance, circuit under test must be discharged fully, and isolates fully with power circuit.If test pen or power supply adaptor breakage need to change power supply, must change the test pen and the power supply adaptor of same model, identical electrical specification.Power indicator shows when electric energy exhausts, does not use split-core type meter.If do not use split-core type meter for a long time, deposit after please battery being taken out.In high temperature, high humidity, inflammable, explosive and strong-electromagnetic field environment, do not deposit or use split-core type meter.Please use wet cloth or detersive to clean the split-core type meter shell, please don't use rubber or solvent.When split-core type meter is moist, please deposit after the first drying.
What should explain at last is; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (2)
1. multi-functional split-core type meter of electric power special new; It comprises main body (1); It is characterized in that: the front end of said main body (1) is provided with first illuminating lamp (2); Its end is provided with second illuminating lamp (13), and said first illuminating lamp (2) and second illuminating lamp (13) switch (3) are arranged on the main body (1).
2. the multi-functional split-core type meter of electric power special new according to claim 1 is characterized in that: said first illuminating lamp (2) and second illuminating lamp (13) are led light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248161 CN202600013U (en) | 2012-05-30 | 2012-05-30 | Novel multifunctional clamp meter dedicated to electric power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248161 CN202600013U (en) | 2012-05-30 | 2012-05-30 | Novel multifunctional clamp meter dedicated to electric power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600013U true CN202600013U (en) | 2012-12-12 |
Family
ID=47317544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220248161 Expired - Fee Related CN202600013U (en) | 2012-05-30 | 2012-05-30 | Novel multifunctional clamp meter dedicated to electric power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932628A (en) * | 2017-03-15 | 2017-07-07 | 国家电网公司 | Portable multi-function electric power testing equipment |
| CN112162135A (en) * | 2020-09-17 | 2021-01-01 | 广东电网有限责任公司梅州供电局 | Clamp type meter |
-
2012
- 2012-05-30 CN CN 201220248161 patent/CN202600013U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932628A (en) * | 2017-03-15 | 2017-07-07 | 国家电网公司 | Portable multi-function electric power testing equipment |
| CN112162135A (en) * | 2020-09-17 | 2021-01-01 | 广东电网有限责任公司梅州供电局 | Clamp type meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130530 |