Frequency Detector

The FDET module is a single channel frequency counter module with a galvanically isolated serial interface. It is the perfect choice for maintenance, testing, integration and troubleshooting applications that require maximum accuracy, channel isolation, and a high data throughput.     

Features

The FDET features the following components and properties:

• 16-bit precision signal detection and counting of cyclic signals
• Active input signal conditioning with filters and comparators
• I2C bus for sampling the current module temperature via the built-in LM 92 temperature sensor
• I2C EEPROM for writing module-specific data to memory (max. 2 kB) to be read and analyzed by an application
• 1 Watt thermal resistor for quickly obtaining operating temperature after power-on
• Heating is controlled either externally via pin #36 or internally via the programmable LM92 temperature sensor. When the module temperature reaches 80° C, the heating will be switched off automatically. The automatic switch-off temperature can be set to a different value via the temperature sensor IC.
• Serial interface (2 wire)
• Rugged metal case with a pin output layout according to the DIL 40 standard (reduced pin count)