Service device for air-conditioning systems
First Claim
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1. A service device for air-conditioning systems, comprising:
- an electronically controllable display;
a display controller connected to the electronically controllable display and configured to control the electronically controllable display;
a housing;
a high-pressure port comprising an associated valve;
a low-pressure port comprising an associated valve;
a service port;
a pressure sensor port on a low-pressure side;
a pressure sensor port on a high-pressure side;
an electronic evaluation unit; and
a port by which the evaluation unit is connectable to external temperature probes, a port for an external vacuum sensor, or both, whereinthe electronic evaluation unit is provided with and fed by an energy storing device, connected to keys, configured to be connected to internal pressure sensors that are tightly connected to the pressure-sensor ports, and comprises a data memory, andthe display controller further configured to cause the electronically controllable display to;
show successively detected measured values for at least one pressure detected by the service device on the electronically controllable display in an analog representation as a virtual pointer instrument in order to output the measured values in analog as pointer values, or in analog as pointer values and as digital numerical values at the same time,change the analog representation on the virtual pointer instrument upon a change in the successively detected measured values,show the determined measured values on the electronically controllable display in analog and dynamically in relation to final values, anddisplayed vapor pressure temperatures are calculated in accordance with a selected refrigerant and a measured pressure.
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Abstract
A service or maintenance device is provided by which the maintenance work to be done on air-conditioning systems is made easier. An internal measuring system for the evaluation and display of measured data may have a display control means configured to optionally show measured values in a dynamic analog scale type in parallel to a numerical value, and to allow a comparison with a set memory marking.
20 Citations
16 Claims
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1. A service device for air-conditioning systems, comprising:
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an electronically controllable display; a display controller connected to the electronically controllable display and configured to control the electronically controllable display; a housing; a high-pressure port comprising an associated valve; a low-pressure port comprising an associated valve; a service port; a pressure sensor port on a low-pressure side; a pressure sensor port on a high-pressure side; an electronic evaluation unit; and a port by which the evaluation unit is connectable to external temperature probes, a port for an external vacuum sensor, or both, wherein the electronic evaluation unit is provided with and fed by an energy storing device, connected to keys, configured to be connected to internal pressure sensors that are tightly connected to the pressure-sensor ports, and comprises a data memory, and the display controller further configured to cause the electronically controllable display to; show successively detected measured values for at least one pressure detected by the service device on the electronically controllable display in an analog representation as a virtual pointer instrument in order to output the measured values in analog as pointer values, or in analog as pointer values and as digital numerical values at the same time, change the analog representation on the virtual pointer instrument upon a change in the successively detected measured values, show the determined measured values on the electronically controllable display in analog and dynamically in relation to final values, and displayed vapor pressure temperatures are calculated in accordance with a selected refrigerant and a measured pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus, comprising:
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an electronically controllable display; a display controller connected to the electronically controllable display and configured to control the electronically controllable display; a housing; a high-pressure port comprising an associated valve; a low-pressure port comprising an associated valve; a service port; a pressure sensor port on a low-pressure side; a pressure sensor port on a high-pressure side; an electronic evaluation unit; and a port by which the evaluation unit is connectable to external temperature probes, a port for an external vacuum sensor, or both, wherein the electronic evaluation unit is provided with and fed by an energy storing device, connected to keys, configured to be connected to internal pressure sensors that are tightly connected to the pressure-sensor ports, and comprises a data memory, the display controller further configured to cause the electronically controllable display to; show successively detected measured pressure values detected by the apparatus on the electronically controllable display in an analog representation for low-pressure and high-pressure ranges of an air-conditioning system as a virtual pointer instrument in order to output the measured values in analog as pointer values, or in analog as pointer values and as digital numerical values at the same time, show the determined measured values on the electronically controllable display in analog and dynamically in relation to final values, and display vapor pressure temperatures calculated in accordance with a selected refrigerant and a measured pressure. - View Dependent Claims (15)
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16. An apparatus, comprising:
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an electronically controllable display; a display controller connected to the electronically controllable display and configured to control the electronically controllable display; a housing; a high-pressure port comprising an associated valve; a low-pressure port comprising an associated valve; a service port; a pressure sensor port on a low-pressure side; a pressure sensor port on a high-pressure side; an electronic evaluation unit; and a port by which the evaluation unit is connectable to external temperature probes, a port for an external vacuum sensor, or both, wherein the electronic evaluation unit is provided with and fed by an energy storing device, connected to keys, configured to be connected to internal pressure sensors that are tightly connected to the pressure-sensor ports, and comprises a data memory, the display controller further configured to cause the electronically controllable display to; show a virtual pointer instrument providing an analog representation for low-pressure and high-pressure side scales of an air-conditioning system, show successively detected measured pressure values for at least one pressure detected by the apparatus on the virtual pointer instrument as a low-pressure side scale and a high-pressure side scale in order to output the measured values in analog as pointer values, or in analog as pointer values and as digital numerical values at the same time, change the analog representation on the low-pressure side scale, the high-pressure side scale, or both, upon a change in the successively detected measured values, show the determined measured values on the electronically controllable display in analog and dynamically in relation to final values, and display vapor pressure temperatures calculated in accordance with a selected refrigerant and a measured pressure.
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Specification