The Smith Meter MMRT-II is a dual-line, explosion-proof pulse-input rate meter and totalizer for TechnipFMC meters with electronic outputs. It gives a local non-resettable total, resettable total and flow rate, plus a scaled 4-20 mA output and two pulse or alarm outputs. SafeTouch through-glass buttons allow programming and totalizer reset in the hazardous area without opening the cover, with password protection.
Key specifications
Compatible transmitters: PEX-P, turbine pickup, turbine preamplifier, UPT, E transmitter, LR-LNC, HR-LNC, PPS, PST
Inputs: Pulse, open collector, NPN/PNP, TTL, switch contact, opto-isolated (to 20 kHz), square wave (to 64 kHz) or magnetic pickup sine wave (20 mVp-p, to 6 kHz)
Outputs: Isolated 4-20 mA for rate, total or grand total (±0.05% span); two isolated open-collector outputs to 5 kHz for pulse, quadrature, retransmit or alarms
Display: 5-digit top and 7-digit bottom LCD with white backlight; 13-digit totalizer with overflow; 0-6 decimals; programmable K-factor
Power: 3.6 V lithium battery (up to about 7.5 years) or 9-30 VDC, 2.2 W max
Approvals: FM and CSA Class I Div 1 Groups B, C, D (and Class II/III); ATEX and IECEx Ex d IIC T6 Gb; Type 4X, IP66/IP68
Environment / housing: -40 to 167 °F; die-cast aluminum with glass window, epoxy coated; three 3/4" NPT entries; 5 lb
How to specify / order
Meter and transmitter: Meter model and the transmitter or pickup type providing the pulse signal
K-factor and units: Pulses per unit volume and the engineering units/decimals to display
Power: Internal battery only, or external 9-30 VDC
Outputs needed: 4-20 mA (rate, total or grand total) and pulse/alarm outputs
Accessories: Optional programming cable
The bulletin gives no position-by-position model code; FMS confirms the ordering 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 SS09045; 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.