CN208520983U - A kind of metering device on-site calibrator - Google Patents
A kind of metering device on-site calibrator Download PDFInfo
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- CN208520983U CN208520983U CN201820862549.5U CN201820862549U CN208520983U CN 208520983 U CN208520983 U CN 208520983U CN 201820862549 U CN201820862549 U CN 201820862549U CN 208520983 U CN208520983 U CN 208520983U
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- 230000005622 photoelectricity Effects 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 abstract description 8
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000012795 verification Methods 0.000 description 5
- 210000001367 artery Anatomy 0.000 description 4
- 210000003462 vein Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 241000270722 Crocodylidae Species 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a kind of metering device on-site calibrators.A kind of metering device on-site calibrator, including body, input equipment is provided on the body, show equipment, terminal region, rheotrope, attachment area, printing device, it is internally provided with controller, the input equipment is connect with controller, the display equipment is connect with controller, the printing device is connect with controller, the controller is by power supply power supply, the power supply connects 220v alternating current, the terminal region includes current clamp and pulse interface, the mountable photoelectricity connector of the pulse interface or electronic watch pulse wire terminal, the terminal region further includes firewire, zero line interface.Metering device accuracy is detected by two methods of actual measurement electricity Comparison Method and calibration pulse method.This instrumental function is complete, easy to use.Solve the problems such as in-site measurement is not intuitive, and wiring is complicated, the precision in situ metrology meter and circuit, internal fault, around more, the rapidly and accurately judgement that alters.
Description
Technical field
The utility model relates to a kind of testers, and in particular to a kind of metering device on-site calibrator.
Background technique
Metering device on-site calibrator is the tester for integrating electric parameter metering, metering device verification, wiring judgement
Device.The instrument with high precision, the voltage transformer and current transformer of high linearity, make instrument to the measurements of various parameters essence
Degree is very high, while can be directly accessed so that field connection is easy without turn-off current circuit equipped with split core type current transformer.
Existing metering device the problems such as there are on-site calibrator in-site measurement is not intuitive, and measurement result is inaccurate, and wiring is complicated.
Utility model content
The purpose of this utility model provides a kind of metering device field-checking aiming at defect of the existing technology
Instrument.
This equipment is to aim at the accuracy of on-line checking metering device and design, and passes through actual measurement electricity Comparison Method and standard arteries and veins
Rush two methods of the detection metering device accuracy of method.The features such as this instrumental function is complete, easy to use, aesthetic in appearance is online
The ideal instrument for detecting metering device can be used as thief-proof electrical inspection evidence obtaining specific purpose tool.1, this detection device is different from other inspections
Equipment has the function of active detecting, i.e., under user terminal no current mode, when no-load run, can still be detected.2, smart
Standard finds characteristic quantity, the operating conditions such as failure, exception or the artificial change destruction of corresponding metering device.By voltage, electric current, power,
The comparison of electricity measured value, simple operations can accurately determine with it is qualitative, and solve that in-site measurement is not intuitive, wiring complexity
Problem.
Its technical solution is: a kind of metering device on-site calibrator, including body, it is characterised in that: on the body
It is provided with input equipment, display equipment, terminal region, rheotrope, attachment area, printing device, is internally provided with controller,
The input equipment is connect with controller, and the display equipment is connect with controller, the printing device and controller
Connection, the controller connect 220v alternating current by power supply power supply, the power supply, and the terminal region includes current clamp and arteries and veins
Rush interface, the mountable photoelectricity connector of the pulse interface or electronic watch pulse wire terminal, the terminal region further include firewire,
Zero line interface.
Further, the rheotrope includes 0.5,1A, 1.5A, 2A, 2.5A gear.
Further, the terminal region is additionally provided with USB interface.
Further, the current clamp is 60A current clamp.
Further, the display equipment is 3.4 cun of LED colorful display screens.
Compared with prior art, have the advantage that design is reasonable, structure is simple, it is strong to do interference,
Quickly, precisely, it is easy to operate, it is practical.
Detailed description of the invention
Fig. 1 is the overall appearance figure of the utility model；
Fig. 2 is the circuit connection diagram of the utility model；
Fig. 3 is the utility model actual measurement electricity ratio to method of calibration connection figure；
Fig. 4 is the utility model current clamp verification through type single-phase measurement device connection figure；
Fig. 5 is the utility model current clamp verification mutual inductor access type metering device connection figure；
Fig. 6 is that the utility model current clamp verifies straight-through three-phase kilowatt-hour meter connection figure；
Fig. 7 is the utility model pulse interface wiring diagram；
Fig. 8 is utility model works schematic diagram.
Wherein, 1, body, 2, input equipment, 3, display equipment, 4, terminal region, 5, current selected switch, 6, attachment area, 7,
Printing device.
Specific embodiment
A kind of metering device on-site calibrator, including body 1, it is characterised in that: be provided with input on the body 1 and set
Standby 2, display equipment 3, terminal region 4, rheotrope 5, attachment area 6, printing device 7, are internally provided with controller, described
Input equipment 2 is connect with controller, and the display equipment 3 is connect with controller, and the printing device 7 and controller connect
It connects, for the controller by power supply power supply, the power supply connects 220v alternating current, and the terminal region 4 includes current clamp and arteries and veins
Interface, the mountable photoelectricity connector of the pulse interface or electronic watch pulse wire terminal are rushed, the terminal region 4 further includes firewire
And zero line interface, the firewire and zero line interface are in parallel with voltage sample circuit, and the firewire and current sampling circuit are logical
The connection of overcurrent mutual inductor, the current sampling circuit and voltage sample circuit are connect by A/D conversion module with controller；
The rheotrope 5 includes 0.5,1A, 1.5A, 2A, 2.5A gear；The terminal region is additionally provided with USB interface；It is described
Current clamp be 60A current clamp；The display equipment 3 is 3.4 cun of LED colorful display screens.
Referring to Fig. 3, actual measurement electricity ratio is to method of calibration (being suitable for ammeter no current state)
The connecting bar of pressure-wire firewire (red), zero curve (black) is inserted into the voltage of metering device on-site calibrator respectively
L red port and black N-port；2. other end red line clamping connection enters single-phase measurement device outlet end, black zero curve accesses ammeter
Zero line side is 4..Straight-through three-phase metering mechanism is respectively connected to current outlet end a, b, c, N, selects lower switch.
Referring to Fig. 4, current clamp verifies through type single-phase measurement device (having current status suitable for ammeter)
The voltage that the connecting bar of voltage firewire (red), zero curve (black) is inserted into metering device on-site calibrator respectively is defeated
Enter the red port L and black port N of socket；Other end red line clamping connection enters ammeter firewire outlet terminal (the i.e. terminal of ammeter
2.), black zero curve accesses ammeter zero line side (i.e. the terminal of ammeter 3. or 4.)；By the corresponding pincers of current clamp plug inserting instrument
Table jack, the split-core type meter other end are caught in route primary current.
Referring to Fig. 5, current clamp verifies mutual inductor access type metering device
The voltage that the connecting bar of voltage firewire (red), zero curve (black) is inserted into metering device on-site calibrator respectively is defeated
Enter the red port U and black port N of socket；Other end red wire clamp be respectively connected to ammeter hot voltage input terminal (a, b,
C), black zero curve access ammeter zero line side (N)；By the corresponding split-core type meter jack of current clamp plug inserting instrument, the split-core type meter other end
It is caught in ammeter current output terminal or line current mutual inductor secondary side, pays attention to current direction (polarity and current clamp polarity palpus one
It causes).
Referring to Fig. 6, current clamp verifies straight-through three-phase kilowatt-hour meter
The connecting bar of voltage firewire, zero curve is inserted into the red end of metering device on-site calibrator voltage input socket respectively
Mouth L and black port N；Other end red line accesses ammeter firewire outlet terminal (i.e. ammeter a, b, c), and black zero curve accesses ammeter
Zero line side (i.e. ammeter N)；By the corresponding split-core type meter jack of current clamp plug inserting instrument, the split-core type meter other end is caught in ammeter outlet
Side.
Instrument working power is that AC measurment terminal is directly powered and battery is powered.
In-site measurement terminal is directly powered (AC85V -400V, 50Hz), after apparatus measures terminate voltage signal, instrument
Directly booting enters working condition.
Lithium battery power supply: 4000mAh lithium battery built in instrument, in the case where no external power supply, battery power supply can connect
Continuous work 8 hours.When charging the battery, two plug in power supply lines are accessed into instrument L/N voltage port, commercial power socket is accessed in other end,
Instrument Auto Power On charges the battery and (can press * key and close screen), and observation shows IIIII when battery capacity simulation bar, and
It and is to have been filled with electricity when not flashing.Instrument detects 60 seconds without having good luck, closing backlight without button operation under charged state, presses by other
Key operation, which can wake up, opens backlight (except switch key and M key).
Printer working power: two slotting supply mains are accessed instrument L/N voltage end by instrument PT terminal working condition
Mouthful, printer can work.
When battery is powered, after being switched on by instrument switch machine key, related interfaces can be checked, under no current operating mode
It not can be carried out the work such as load output, printing, current clamp can be used to measure current signal, measure ammeter inlet-outlet line current data.
If without any button operation in 2 minutes, system is by automatic shutdown.
No current operating mode, it is necessary to access the scene L/N voltage signal.
When L/N or city are electrically accessed, if load did not start, after external power supply disconnects, system is by automatic shutdown.
Working time electric fan locks working time (battery power supply)
0 minute 0-2 minute
2 minutes 2-4 minutes
3 minutes 4-6 minutes
4 minutes 6-8 minutes
5 minutes 8-10 minutes
Fan is pinned switch key 10 seconds or more during locking the working time, when buzzer continuous alarm, is unclamped again
Switch key, can forced shutdown.
Printer must access L/N or when city is electrically accessed can work.
Impulse sampling wiring explanation
There are two types of modes for impulse sampling: photoelectricity sampling and pulse ends sub-sampling
For rotating disc type metering device because it does not have electrical energy pulse output terminal, metering device can be turned with photoelectric sampler
The turnning circle of disk is converted to pulse signal, specific as follows:
1. by photoelectric sampler plug inserting instrument electrical energy pulse input socket；
2. photoelectric sampler is adsorbed on metering device, lighting distance is adjusted to effective range, by photoelectric sampler three
A red daylighting lamp impinges upon metering device center of turntable position, and black mark passes through ammeter center on device turntable to be batched
When, the every flashing of signal lamp is primary, indicates correctly to collect light one pulse at this time.It is adopted as photometer head is adjusted in flicker free
Angular or lighting distance.Adjusting knob adjustable light signal power improves sampling sensitivity.
Photoelectricity sampling mode shares 2 kinds, is switched over by switch bar:
Mechanical table schema: bright three, photoelectric sampler back side red light is collection machinery rotating disc type ammeter mode；
Electronics table schema: three, photoelectric sampler back side red light goes out to acquire electronic electricity meter mode；
Pulse input (verification electronic electricity meter)
The pulsing yellow of pulse input can be entered and clamp the high-end and low side of electronic watch pulse output respectively with black GND；
Another 6-pin socket for being connected to instrument of pulse input.
Note: pulse signal power supply is 5V signal, forbids to touch the above signal of voltage terminal 5V, otherwise can damage instrument
Device centainly pays attention to when asking wiring.
It,, should be far from other current-carrying conductors and magnetic field in addition to measured wire especially in tested electric current very little when in-site measurement
Interference source, such as power transformer；
Electric current split-core type meter should ensure that current direction is correct in sampling, i.e., current direction is flowed into from colored marking side "+", ash
Colour code knows the outflow of end "-".
The capable of emitting calibration pulse signal of tester, in this instrument of measurement verification, by pulse output line inserting instrument pulse
Other end green pulse is gone out and black GND crocodile clip is connected to the pulse input terminal of standard scale by socket, red VCC for it is spare+
5V power supply.
Tester can issue electric energy arteries and veins to standard scale after access voltage and electric current clamp signal in the case where there is current working mode
Rush signal.
This instrument is all automatic measurement, is directly read after access voltage, electric current, pulse signal without the i.e. settable parameter of conversion
Take every electrical parameter.
The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model
Embodiment should not be considered as limiting the scope of the present invention.It is all to become according to equalization made by the scope of the utility model
Change and improve etc., it shall still fall within the scope of this patent.
Claims (5)
1. a kind of metering device on-site calibrator, including body (1), it is characterised in that: be provided with input on the body (1)
Equipment (2), display equipment (3), terminal region (4), rheotrope (5), attachment area (6), printing device (7), inside setting
There is controller, the input equipment (2) is connect with controller, and the display equipment (3) is connect with controller, and described beats
Printing apparatus (7) is connect with controller, and the controller connects 220v alternating current, the end by power supply power supply, the power supply
Sub-district (4) includes current clamp and pulse interface, the mountable photoelectricity connector of the pulse interface or electronic watch pulse wire terminal, institute
The terminal region (4) stated further includes firewire and zero line interface, and the firewire and zero line interface are in parallel with voltage sample circuit, described
Firewire connect with current sampling circuit by current transformer, the current sampling circuit and voltage sample circuit pass through A/
D conversion module is connect with controller.
2. a kind of metering device on-site calibrator according to claim 1, it is characterised in that: the rheotrope
Including 0.5,1A, 1.5A, 2A, 2.5A gear.
3. a kind of metering device on-site calibrator according to claim 1, it is characterised in that: the terminal region is additionally provided with
USB interface.
4. a kind of metering device on-site calibrator according to claim 1, it is characterised in that: the current clamp is 60A
Current clamp.
5. a kind of metering device on-site calibrator according to claim 1, it is characterised in that: the display equipment is
3.4 cun of LED colorful display screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820862549.5U CN208520983U (en) | 2018-06-05 | 2018-06-05 | A kind of metering device on-site calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820862549.5U CN208520983U (en) | 2018-06-05 | 2018-06-05 | A kind of metering device on-site calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520983U true CN208520983U (en) | 2019-02-19 |
Family
ID=65324771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820862549.5U Expired - Fee Related CN208520983U (en) | 2018-06-05 | 2018-06-05 | A kind of metering device on-site calibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520983U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568392A (en) * | 2018-06-05 | 2019-12-13 | 北京科奥德耐技术发展有限公司 | An on-site calibrator for metering devices |
| CN110764045A (en) * | 2019-11-26 | 2020-02-07 | 国网四川省电力公司电力科学研究院 | Verification system and verification method for digital metering of intelligent substation |
-
2018
- 2018-06-05 CN CN201820862549.5U patent/CN208520983U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568392A (en) * | 2018-06-05 | 2019-12-13 | 北京科奥德耐技术发展有限公司 | An on-site calibrator for metering devices |
| CN110764045A (en) * | 2019-11-26 | 2020-02-07 | 国网四川省电力公司电力科学研究院 | Verification system and verification method for digital metering of intelligent substation |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |