The Smith Meter MMRT is a battery-powered, explosion-proof combination totalizer and rate meter. It has an eight-digit non-resettable accumulated totalizer and an eight-digit resettable batch totalizer, and a magnet-operated reed switch toggles the display to flow rate. A programmable scaler and decimal point show totals and rate in any engineering units. It mounts on PRIME 4 meters, PD meters with transmitters, turbine meters and mass meters.
Key specifications
Totalizers: 8-digit non-resettable plus 8-digit resettable batch total; flow rate on demand
Power: Internal 3 V lithium battery, life expectancy 3+ years
Low-speed input: Contact closure to DC common, 0-20 Hz
High-speed input: Voltage source (current sourcing sensor, or sinking sensor with supplied pull-up), 0-10 kHz
Scaling: Programmable scaler and decimal point for any engineering units
Housing / approvals: Explosion-proof; CE compliant
How to specify / order
Meter: PRIME 4, PD meter with transmitter, turbine, MV turbine or mass meter (model and size)
Input type: Low-speed contact closure or high-speed pulse, and the transmitter/pickup used
Scaling: Pulses per unit and display units/decimals
Mounting: Meter-mounted or remote
For new projects with 4-20 mA or pulse output needs, see the MMRT-II. FMS confirms the MMRT part number with the factory.
Pricing and lead time are quoted per configuration. Send the model code (or your application details), product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Smith Meter bulletin SS09040; confirm current data with the factory before ordering.
Smith Meter (formerly FMC Technologies / TechnipFMC Measurement Solutions), now manufactured by Guidant. Flow Measurement Services supplies and services Smith Meter equipment.