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| 2F075 | Indication and recording devices for special purposes and tariff metering devices | |
| G01D3/00 -4/18 | ||
| G01D3/00-3/10 | AA | AA00 OBJECTIVE |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | AA10 | |
| . Compensation, correction, or adjustment | . . Compensation for the influence of interfering variables | . . . Temperature | . . . Pressure | . . . Noise | . . . Drift or variation over time | . . Zero adjustment | . . Time-span adjustment | . Checking or improvement reliability | ||||
| AA11 | AA12 | AA13 | AA14 | AA15 | ||||||||
| . Safety and protection of the device | . . Explosion-proofing | . . Thermal shielding | . . Electrostatic or magnetic shielding | . . Damage prevention and protection against exceeding the operational range | ||||||||
| BB | BB00 MEANS FOR CHANGING OR MODIFYING VARIABLE RULES |
BB01 | BB02 | BB03 | BB04 | BB05 | BB06 | BB08 | BB09 | BB10 | ||
| . Switching of range | . . Switching back to original range | . . Increase or decrease of predetermined values | . . Variable amplification factors | . . Automatic switching | . . Manual switching | . Linear rise of variable | . . Stair-step rise of variable | . . Logarithmic or exponential conversion | ||||
| CC | CC00 NULL METHODS |
CC01 | CC02 | CC03 | ||||||||
| . Zero-point detection means | . . Phase-comparison types | . . Voltage-comparison types | ||||||||||
| DD | DD00 INDICATORS OR RECORDERS FOR SWITCH OPERATION |
DD01 | DD02 | DD03 | DD04 | DD05 | DD06 | DD07 | DD09 | DD10 | ||
| . Non-mechanical switches | . . Optical switches | . . Magnetic switches | . Mechanical switches | . . Switches that are actuated by the rotation of the contact plate | . . Switches that are actuated by special gears or contact gears | . . Switches that are actuated by the movement of cams or levers | . Switches that are actuated by the movement of indication needles or pointers | . . Switches that are actuated by rotation | ||||
| EE | EE00 MEANS FOR COMPENSATION, CORRECTION, ADJUSTMENT, CHANGE, OR MODIFICATION |
EE01 | EE02 | EE03 | EE04 | EE05 | EE06 | EE07 | EE08 | EE09 | ||
| . Analogue means | . . Materials for mechanical correction or compensation | . . . Bimetals | . . Circuit correction, circuit compensation elements, and nonlinear elements | . . . Thermistors | . . . Diodes | . . . Transistors | . . . Resistors | . . . Capacitors | ||||
| EE11 | EE12 | EE13 | EE14 | EE15 | EE16 | EE17 | EE18 | |||||
| . Digital means | . . Counters | . . . Up-down counters (i.e., UD counters) | . . Memory circuits | . . . Read-only memory (ROM) or random access memory (RAM) | . . Calculation circuits | . . Analog-to-digital (A/D) or digital-to-analog (D/A) converters | . . Central processing unit (CPU) control | |||||
| FF | FF00 INDICATION AND OTHERS |
FF01 | FF02 | FF03 | FF04 | FF05 | FF06 | FF07 | FF08 | FF09 | FF10 | |
| . Display means | . . Optical indication | . . . Digital indication | . . Indication needles or pointers | . . . Scales | . . Indication by means of sound | . . Alarm indication | . . Indication of settings or range switching | . . Recorders | . Characteristic applications | |||
| G01D4/00-4/18 | GG | GG00 TARIFF COMPUTING AND MEASURING EQUIPMENT |
GG01 | GG02 | GG03 | GG04 | GG05 | GG06 | GG07 | GG08 | GG09 | GG10 |
| . Applications | . . Postage | . . Taxi meters | . . Flow rate meters | . . Weight meters | . . Electric power meters | . Indication and recording means | . . Indication needles and pointers | . . Optical indication | . . Printers and recorders | |||
| GG11 | GG12 | GG13 | GG14 | GG15 | GG16 | GG17 | ||||||
| . Tariff computing and measuring means | . . Mechanical means | . . Digital means | . . . Counters | . . . Calculating means | . . . Utilization of memory circuits (i.e., use of read-only memory (RAM) or random-access memory (ROM) | . . . Central processing unit (CPU) control |