JPS6488250A - Particle analyzer - Google Patents
Particle analyzerInfo
- Publication number
- JPS6488250A JPS6488250A JP62246292A JP24629287A JPS6488250A JP S6488250 A JPS6488250 A JP S6488250A JP 62246292 A JP62246292 A JP 62246292A JP 24629287 A JP24629287 A JP 24629287A JP S6488250 A JPS6488250 A JP S6488250A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- value
- sheath liquid
- sensor
- pressure value
- 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
- 239000002245 particle Substances 0.000 title 1
- 239000007788 liquid Substances 0.000 abstract 5
- 238000012423 maintenance Methods 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 1
Abstract
PURPOSE:To properly perform maintenance and control by storing the pressure value given by a pressure control system and comparing the same with the pressure value applied during measurement by the pressure control system to detect the reduction of a sheath liquid and detecting the clogging of a filter from the pressure value of the pressure control system. CONSTITUTION:The sheath tube in a sheath liquid container 5 is guided to a nozzle 11 through an impurity removing filter 8 and a pressure sensor 9. The set pressure from the outside and the output of the sensor 9 are inputted to a control circuit 17 for controlling the output of the sensor 9 to a set value and the circuit 17 controls the pressure of the sensor 9 to constant value through an electric regulator 3 for a sheath liquid. The initial pressure value when the container 5 is filled with the sheath liquid is stored and, from the difference between said value and the pressure value during measurement, the reduction of the sheath liquid is discriminated and, when the pressure value exceeds an alarm value by the advance of the clogging of the filter 8, clogging is judged. Therefore, maintenance and control can be easily performed.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246292A JPS6488250A (en) | 1987-09-30 | 1987-09-30 | Particle analyzer |
US07/990,922 US5245318A (en) | 1987-07-24 | 1992-12-15 | Particle analyzing apparatus having pressure control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246292A JPS6488250A (en) | 1987-09-30 | 1987-09-30 | Particle analyzer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6488250A true JPS6488250A (en) | 1989-04-03 |
Family
ID=17146379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62246292A Pending JPS6488250A (en) | 1987-07-24 | 1987-09-30 | Particle analyzer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6488250A (en) |
-
1987
- 1987-09-30 JP JP62246292A patent/JPS6488250A/en active Pending
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