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Working principle & Introduction: The model 710A is newly developed to meet the needs of Chinese market on the base of Germany Hengstler product. It adopts highly-integrated chip components with small space usage and strong counting ability and conducts high-frequency counting under the drive of voltage pulse, a proximity switch, a photoelectrical switch, a shaft encoder or a mechanical contact switch. This counter can be reset both by the front panel and by the external electrical signal, simple for use. Its unique internal memorizer can keep the data for ten years without batteries during power failure or power off. The 6-bit red nixie tube (LED) display is high in definition, easy to be identified and hard to be impacted by temperature and light, and applicable to interrupted zero restoration counting, such as statistics counting, mechanical revolution, currency counting, flow counting, and group counting in packaging, textile, mechanical and dying industries. |
Product Series and Relevant Technical Parameters: | Model | 711A-P-DC | 711A-P-AC | 711A-N-DC | 711A-N-AC | | Display | 6-bit red LED display Text height 7mm | | Voltage (fluctuation range: ±10%) | DC: 12 V～24V | AC: 165 V～265V | DC: 12 V～24V | AC :165 V～265V | | Power | 2W | | Data Retention | 10 years | | Input impedance | 22kΩ | | Threshold voltage | High level ≥8 V, low level≤2 V | | Limit voltage | ±40V | | Counting (reset) signal frequency | 30Hz or 5kHz, can be set by the programmable switch | | Counting signal trigger mode | Positive edge | Positive edge | Negative edge | Negative edge | | Minimum pulse width | 17ms or 100μs, can be set by the programmable switch | | Signal output mode | Relay output | | Signal output time | Min. 50ms, the middle about 1s, can be set in steady state | | Load capacity | 50VA, max. voltage AC:250V; DC:30V, max. current: 2A | | Duty cycle | 1:1 | | Protection level | Level 2 | | Front panel protection | IP54, DIN40050 | | Back panel protection | IP00, DIN40050 | | | Level 2 (IEC801) | | Operating temperature | -10℃~+50℃ | | Storage temperature | -20℃~+70℃ | Product installation & dimension diagram:  |
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