Precision and reliability with the Mini-Max Rotary Corrector

This direct-mount electronic volume corrector is available for most popular rotary gas meters. The internal temperature probe and independent Redundant Electronic Index (REI) improve the precision and reliability. The Mini-Max Rotary Corrector easily adapts to Dresser LMMA & B3, Romet and Elster American Meter* B & C-body rotary meters.


The Mini-Max Rotary Corrector Features

  • Small, sturdy case and integral design (instrument drive not required)
  • High-performance, low-power microprocessor
  • Extended battery life and high audit trail memory capacity (40 days of daily or hourly)
  • Integrated volume, gas pressure and gas temperature sensors
  • Redundant Electronic Index (REI) for uncorrected volume backup
  • Available for Dresser, Romet and Elster American Meter* rotary meters
  • All electronic, no moving parts
  • Low power requirements
  • Pulse output channels included
  • Integral push button to activate the scroll list
  • Composite case, doesn’t rust or require painting

Mini-Max Rotary Corrector Specifications

Technical data
Maximum error at reference conditions including linearity, repeatability and hysteresis
Computation: ± 0.3% of corrected volume reading
Pressure Transducer: ± 0.4% of full scale
Temperature Sensor: ± 1.0° F (± 0.56° C)
Combined Computation, Pressure & Temperature: ± 0.5% of full scale
Ambient Temperature Effects
From -40 to 160°F (-40 to 70° C)25 PSIG
Computation: ±3% of corrected volume reading per 100°F (55.56°C)
Pressure Transducer: ±6% of full scale per 100°F
Temperature Sensor: No effect
Long Term Stability
Computation: ±3% of corrected volume reading per year
Pressure Transducer: ±5% of full scale per year
Temperature Sensor: ±0.4°F (0.22°C) per year
Environmental Conditions
Ambient Temperature: -40°F to 160°F (-40°C to 70°C)
Ambient Humidity: 0% to 100% non-condensing
Meter Adapter Plates
Dresser: LMMA & B3
Romet: RM1000 – RM38,000
Elster American: B-body & C-body
Integral mount
Input Voltage: +3.8 to +6.0 VDC
Battery Life: 4 years (w/4 D-cell alkaline battery pack at normal operating conditions)
Class 1, Zone 0, Group IIA or
Class 1, Zone 2, Group IIA
Class 1, Division 1, Group D or
Class 1, Division 2, Group D
5.6 lbs. (2.5kg) meter-mount version