MI N I- A T Co rre c t o r

The Standard In
Gas Volume Correction
A full-featured gas volume corrector with the ability
to accept upgrades for future needs.

The MINI-AT electronic corrector offers you the

standard for value and reliability that you have
come to expect from Mercury plus new features
with room to grow.

With the MINI-AT you get …

• The same quality, durability, accuracy and service you
get with all Mercury products
• Durable case, index, mounting bracket and
measurement components that provide years of
trouble-free service
• Great software your technicians already know or can
easily learn
• 4-year warranty

Plus you get a state-of-the-art main board offering

features gas companies have requested; for example:
• 140+ days of 10-item audit trail memory
• Flash memory upgrades (software file transfers to
upgrade firmware)
• 38.4K BPS maximum data transfer rate
• Choice of built-in modems
• 3+ years battery life
• Alarm and scheduled call-in capability

And the MINI-AT gives you room to grow

and adapt as your needs change. Some of the
expansion capabilities include:
• Second pressure transducer (for monitoring pressure)
• Modbus protocol (optional add-on board)
• 4-to-20 mA output (optional add-on board)
• High Frequency Input (HFI) for turbine and
ultrasonic meters
Mercury Instruments, Inc.
Mini-AT Specifications Input volume Memory
• Dual dry-reed switches—one pulse per each meter revolution • Audit Trail: 140+ days or hourly

• Uncorrected volume totalized on the mechanical index and displayed • Event Log: 500+ records
on LCD • Alarm Log: 200+ records
• Flash: Resident firmware (serially upgradable)
Input pressure 2
• E PROM: Resident pressure compensation
• Precision strain gauge pressure transducer coefficients and critical
compensated to minimize ambient temperature effects
calibration/configuration values
• Live LCD display of input pressure

• Standard transducer ranges:

Accuracy
Maximum error at reference conditions including linearity,
Pressure Ranges Transducer Type repeatability and hysteresis
(PSI) (BAR) • Computation: ± 0.1% of corrected volume
0-1 0.07 Gauge only reading

0-3 0.20 Gauge only • Pressure transducer: ± 0.25% of full scale

0-6 0.40 Gauge only • Temperature sensor: ± 0.5 F

0-15 1.00 Gauge only • Combined computation: ± 0.25% of full scale
(pressure & temperature)
0-30 2.00 Gauge or Absolute
0-60 4.00 Gauge or Absolute Ambient temperature effects
0-100 7.00 Gauge or Absolute From - 40 to 170 F (- 40 to 76.6 C)
0-300 20.00 Gauge or Absolute • Computation: ± 0.1% of corrected volume per 100 F
0-600 41.00 Gauge or Absolute • Pressure transducer: ± 0.3% of full scale per 100 F
0-1000 70.00 Gauge or Absolute
• Temperature sensor: No effect
0-1500 100.00 Gauge or Absolute
Long term stability
Input temperature • Computation: ± 0.1% of corrected volume per
• Highly stable solid-state temperature sensor in a sealed 1/4-in. year
diameter 9-in. long stainless steel probe with 6-ft armored
conductor and 1/2-in. NPT slip-along fitting to match • Pressure transducer: ± 0.3% of full scale per year
thermowell • Temperature sensor: ± 0.2% per year
• Range: - 40 to 170 F (-40 to 76.6 C)
Environmental conditions
• Live LCD display of input temperature • Ambient temperature: - 40 to 170 F (- 40 to 76.6 C)

Corrected volumee • Ambient humidity: 0 to 100% noncondensing

• Corrected to desired base pressure and base

temperature Enclosure
• Cast aluminum alloy, surface treated, baked enamel paint
• Corrected for supercompressibility (NX-19 or
AGA-8) • Lexan viewing window for uncorrected mechanical index and corrected
volume LCD index
• Selectable (metric and imperial) volume units
• Stainless steel door latch with padlock hasp
• Displayed continuously on 8-digit x 1/2-in. LCD • Mounting plate with gasket and bolts to accommodate most meters

Power Certifications
• 5.5 to 9.0 VDC • UL certified for Class I, Divisions 1 & 2, Group D
• Battery life: 3 years+ (with standard alkaline battery pack)
• CSA certified for Class I, Divisions 1 & 2, Group C & D

• On-board backup battery (3 AA alkaline cells)

Warranty 7" 6 7/8"

• Lithium, AC or solar (optional) • 4 years 2 1/2"

• LCD display of main battery voltage, backup battery voltage and M E R C U R Y

alarms 1 1/4"
10 7/8"
Output volume 1/4" NPT
FEMALE
For data collection systems PRESSURE
CONNECTION
• Jumper selectable two Form-A or
one Form-C pulse output 4"

• Jumper selectable pulse width 4 15/16" 4 3/8"

• Uncorrected mechanical switch
Mercury Instruments, Inc.
3940 Virginia Ave. • Cincinnati, Ohio 45227 USA 6 FEET
9"
Phone 513-272-1111 • Fax 513-272-0211 ARMOR

Web www.mercuryinstruments.com • e-mail info@mercuryinstruments.com

Quality precision instruments for the natural gas industry