ET226 Drop Counter
A drop counter that features a reflective sensor that contains both an infra-red light emitting diode and a photo-transistor. As a drop passes the sensor, a TTL output signal is emitted. The drop counter connects directly to a DIN plug on an e-corder, providing a convenient way to measure and display titrant volume in relation to one or more solution parameters such as pH, conductance, or temperature.
Improves the speed and accuracy of a titration by eliminating the need to stop the addition of titrant exactly at the endpoint of a reaction. It is used in the EXP011 The pH Electrode and Potentiometric Titrations teaching note.
- Material: Chemically resistant DelrinTM
- Max count rate: 40 /sec
- Power: 9 V DC
- Output signal: TTL
- Pulse width: 25 ms