Digital ALMEMO D7 Measuring Connector for Pt100 Temperature Sensor
Technical Data and Functions ALMEMO D7 Measuring Connector
| • The digital ALMEMO D7 measuring connector uses its own integrated A/D converter. It provides a high-level resolution of 0.01 K across the entire measuring range up to 850 °C. Linearization of the Pt100 characteristic is calculated error-free in compliance with DIN IEC 751 (not an approximation). | • The measuring rate is determined entirely and exclusively by the integrated A/D converter. On the ALMEMO V7 measuring instrument all D7 measuring connectors operate in parallel at their own measuring rate. The measuring instrument‘s very short scan cycle is determined by the measuring rates of the D7 measuring connectors - irrespective of their number. |
| • The overall accuracy of the measuring operation is unaffected by the presence of an ALMEMO V7 display device / data logger. The whole measuring chain, comprising e.g. a Pt100 sensor and the connected ALMEMO D7 measuring connector, can be calibrated end-to-end. Calibration can be performed with greater accuracy by subjecting the Pt100 sensor to a process of multi-point adjustment. | • Sensor identification can be programmed with designations up to 20 characters in length. |
Technical Data ALMEMO D7 Measuring Connector
| Sensor type | Pt100, 4 conductors | Accuracy | 0.07 K +2 digits |
| Measuring input | Electrically interconnected with the power supply (ALMEMO device ground) | Nominal Temperature | +22 °C ±2 K |
| Measuring range | -200 to +850 °C | Temperature Drift | 0.003 % / K (30 ppm) (resistance) |
| Resolution | 0.01 K | Operative Range | -10 to +60 °C / 10 to 90 % RH (non-condensing) |
| Conversion rate | 10 mops | Supply Voltage | from 6 V up. from ALMEMO® device (sensor supply voltage) |
| Measuring current Pt100 | Approx. 1 mA | Current consumption | Approx. 9 mA |
| Linearization | Calculated error-free (not an approximation) |
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