FM-2D/K Frequency Converter
- Supports multiple pulse input types
- Scales outputs for forward/reverse flow
- Local volume/flow indication display
- Instant values via M‑Bus
- Retains data during power loss
Frequency converter and flow-totalization for commercial & industrial water meters
Sensus FM-2D/K is a microprocessor-controlled frequency converter with two pulse inputs for commercial and industrial water meters. It converts pulse frequency signals into a flow rate–proportional current output by linking two input pulses with flow direction signals.
The FM-2D/K frequency converter supports forward and reverse totalization, pulse and current outputs, and serial data communication, making it suitable for applications such as flow monitoring, dosing, automation, and limit value supervision. An integrated LCD provides local display of volume, instantaneous flow rate, and programming data, while M-Bus/MiniBus connectivity enables access to instant values.
Features
- Two freely programmable pulse inputs with flow direction processing.
- Freely scalable current output with direction identification (–20 mA to +20 mA).
- Separate relay outputs for forward and reverse volumes.
- Opto-coupler outputs for pulse, direction, or limit value signaling.
- Adjustable pulse divisor for pulse output.
- Galvanic isolation between supply, inputs, and outputs.
- Integrated LCD for volume, instantaneous flow rate, and programming data.
- M-Bus data connection for reading instant values.
- Wall-mounted or DIN rail installation.
- On-site programming via five-button interface.
Specifications
- Pulse inputs: Two pulse inputs with direction processing.
- Current output: ±20 mA or 0/4–20 mA, freely scalable.
- Pulse output: Adjustable pulse divisor.
- Communication: M-Bus / MiniBus serial data interface.
- Display: Integrated LCD for flow rate, volume, and programming data.