JPH03104873U - - Google Patents
Info
- Publication number
- JPH03104873U JPH03104873U JP1060390U JP1060390U JPH03104873U JP H03104873 U JPH03104873 U JP H03104873U JP 1060390 U JP1060390 U JP 1060390U JP 1060390 U JP1060390 U JP 1060390U JP H03104873 U JPH03104873 U JP H03104873U
- Authority
- JP
- Japan
- Prior art keywords
- current
- section
- display
- detection
- circuit unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000004397 blinking Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Audible And Visible Signals (AREA)
- Emergency Alarm Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Description
第１図は本考案の一実施例である、負荷電流表
示器のブロツク図、第２図は同じく負荷電流表示
器の正面図及び側面図である。
１……検出部、２……負荷電流表示器本体、３
……定格切換スイツチ、４……変換回路部、５…
…比較回路部、６……表示駆動回路部、７……表
示部、８……警報駆動回路部、９……点滅回路部
、１０……電源回路部、１１，１１′……表示素
子、１２……ブザー、１３……ブザー入切りスイ
ツチ、１４……電源スイツチ。
FIG. 1 is a block diagram of a load current indicator, which is an embodiment of the present invention, and FIG. 2 is a front view and a side view of the load current indicator. 1...Detection unit, 2...Load current display main body, 3
...Rating changeover switch, 4...Conversion circuit section, 5...
... Comparison circuit section, 6 ... Display drive circuit section, 7 ... Display section, 8 ... Alarm drive circuit section, 9 ... Blinking circuit section, 10 ... Power supply circuit section, 11, 11' ... Display element, 12...buzzer, 13...buzzer on/off switch, 14...power switch.
Claims (1)
流制限器または配線用しや断器の定格電流に対応
して前記検出部の検出レベルを切換える定格切換
スイツチと、前記検出部の検出出力である交流電
流を直流電圧に変換する変換回路部と、前記直流
電圧を段階的に設定された複数の基準電圧と比較
する比較回路部と、該比較回路部の動作に対応し
て表示部を駆動部する表示駆動回路部と、現在の
負荷電流を段階的に表示する表示部と、該表示部
により設定電流以上の過負荷電流が表示される場
合に警報を発生する警報部とを具備した負荷電流
表示器。 a detection section that detects an alternating current flowing through the load; a rating changeover switch that switches the detection level of the detection section in accordance with the rated current of a current limiter or a wiring cutter; and a detection output of the detection section. A conversion circuit unit that converts an alternating current into a DC voltage, a comparison circuit unit that compares the DC voltage with a plurality of reference voltages set in stages, and a drive unit that drives a display unit in response to the operation of the comparison circuit unit. A display drive circuit section that displays the current load current in stages, and an alarm section that issues an alarm when the display section displays an overload current that is higher than the set current. display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1060390U JPH03104873U (en) | 1990-02-07 | 1990-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1060390U JPH03104873U (en) | 1990-02-07 | 1990-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03104873U true JPH03104873U (en) | 1991-10-30 |
Family
ID=31514160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1060390U Pending JPH03104873U (en) | 1990-02-07 | 1990-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03104873U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750067B2 (en) * | 1980-12-03 | 1982-10-25 | ||
| JPS6171B2 (en) * | 1982-01-14 | 1986-01-06 | Microbial Chem Res Found |
-
1990
- 1990-02-07 JP JP1060390U patent/JPH03104873U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750067B2 (en) * | 1980-12-03 | 1982-10-25 | ||
| JPS6171B2 (en) * | 1982-01-14 | 1986-01-06 | Microbial Chem Res Found |