EP 0453302 A1 19911023 - Diagnostic equipment.
Title (en)
Diagnostic equipment.
Title (de)
Diagnosegerät.
Title (fr)
Appareil diagnostique.
Publication
Application
Priority
GB 9008788 A 19900419
Abstract (en)
Diagnostic equipment more particularly to indentify faults in refrigeration equipment is described. The equipment comprises a diagnostic sensor unit (10) including a microprocessor module (21) comprising a microprocessor (22), a ROM (23), a RAM (24), an EEPROM (25), a system clock (26), an analogue to digital converter (ADC) (27) and a digital interface (28) powered by an independent power supply to the equipment being monitored. A plurality of inputs is connected to locations in the refigerated equipment and a display e.g. a liquid crystal display, is provided to indicate the status of the equipment. The input from the locations is learnt by the microprocessor (22) and any change in the input from these locations is compared with the learnt inputs and significant changes are indicated as faults on the display. <IMAGE>
IPC 1-7
IPC 8 full level
F25B 49/00 (2006.01); F25D 29/00 (2006.01); G08B 23/00 (2006.01)
CPC (source: EP)
F25B 49/005 (2013.01); F25D 29/008 (2013.01); G08B 23/00 (2013.01); F24F 11/52 (2017.12)
Citation (search report)
- [X] FR 2589561 A1 19870507 - FROILABO [FR]
- [X] EP 0254253 A2 19880127 - NIPPON DENSO CO [JP]
- [X] GB 2064818 A 19810617
- [Y] FR 2582430 A1 19861128 - EURAM UMPI LTD [GB]
- [Y] WO 8703988 A1 19870702 - MONITRONIX LTD [AU]
- [A] WO 8802527 A1 19880407 - SHEPHERD INTELL SYST INC [US]
- [A] US 4653280 A 19870331 - HANSEN JOHN C [US], et al
- [A] US 4660386 A 19870428 - HANSEN JOHN C [US], et al
- [A] EP 0351833 A2 19900124 - MITSUBISHI HEAVY IND LTD [JP], et al
- [A] FR 2628558 A1 19890915 - SCL SECURITY COMPUTER LINE SRL [IT]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 91303518 A 19910419; GB 9008788 A 19900419