Please note: we work continuously to improve the performance of our products – all specifications are subject to change without notice.

Let Galvanic’s GasMicro Electronic Volume Corrector look after you!Reduce your maintenance and calibration costs with Galvanic’s GasMicro electronic volume corrector, approved for 12 years of calibration-free operation by Measurement Canada in custody-transfer applications. The GasMicro instrument brings you long-term measurement stability and accuracy – and peace of mind. Merely install it and leave it! No post-installation calibration required. Mea-surement accuracy is maintained over the operational life of the instrument.

©2015 Galvanic Applied Sciences, Inc.ANG5217 | June 2015

GASMICRO SPECIFICATIONS

PERFORMANCE

Accuracy @ 25°C (77° F)

Corrected volume: +/- 0.05% of readingPressure: +/- 0.05% of readingTemperature: +/- 0.14°C (+/- 0.25°F)

Accuracy over -40°C to 65°C (-40°F to

149°F)

Corrected volume: +/- 0.2% of readingPressure: +/- 0.2% of readingTemperature: +/- 0.5°C (+/- 0.9°F)

Initial Reverifi cation Period (Measurement

Canada)

12 years

ENVIRONMENT

Ambient temperature -40°C to 65°C (-40°F to 149°F)

Dimensions 195 mm W x 310 mm H x 135 mm D (7.7" W x 12.2" H x 5.3" D)

Weight 4.5 kg (10 lbs)

UTILITIES

Power & consumption

Battery operated (6 D-cell)4-year battery life

COMMUNICATIONS

Digital Outputs Modbus RS232, dial-up and wireless modem

Pulse Ouputs 2

APPROVALS & CERTIFICATIONS

CSA, Class 1 Division 1, Groups C,DMeasurement Canada for Custody Transfer

Application Insight:GasMicro Electronic Volume Corrector

Electronic Volume Correction in NG Custody Transfer & Distribution Applications

www.galvanic.com+1 403.252.8470

info@galvanic.com

Whether you are on the sending or receiving end of the natural gas distribution system, you want to be assured that the actual value of the transported gas is assessed correctly. While that requires a precise measurement of Btu content, it is just as important to determine the actual volume of gas delivered.

The GasMicro instrument by Galvanic Applied Sciences provides the functionality of three in-struments – an electric volume corrector (EVC), electronic pressure recorder (EPR), and a data logger – in one, rugged hardware/software package. With its versatile, user-friendly soft-ware, high performance, and advanced fea-tures, it is the most economical choice for cus-tody-transfer applications on the market today.

Electronic Volume Correction in NG Custody Transfer & Distribution ApplicationsNatural gas meters, such as turbine or rotary meters, only measure the volume of gas flowing through them. The meter reports an uncorrected volume of natural gas as determined by the physical volume of the meter. However, because NG is compressible, the volume varies as a result of live pressure and tempera-ture changes occurring in the pipeline. An electronic volume corrector is needed to fully compensate for these variations to accurately calculate the true vol-ume of NG flowing through the meter.

NATURAL GAS

PROCESSING PLANTS

# 8

GASMICRO SELECTED SPECIFICATIONSFunctions Provided Electronic volume corrector (EVC)

Electronic pressure & temperature recorderThree-channel data logger

Accuracy @25° CCorrected Volume

PressureTemperature

±0.05% of reading±0.05% of reading±0.05% of reading

Maximum Error Over Ambiant Temperature Range -40° to 65°Corrected Volume

PressureTemperature

±0.2% of reading±0.2% of reading±0.2% of reading

Pressure Transducer Ranges

15, 30, 60, 100, 200, 300, 500, 1,000 & 2,000 (psia or psig)Exceeds 250:1 turndown, compatible with standard, differential, or linear transducers

Galvanic’s GasMicro instrument is a three-in-one measurement device ideally suit-ed for all custody-transfer applications since it complies with both AGA7 & AGA8, which takes super-compressibility into ac-count.

Unlike turbine or rotary meters, when gas flows through the flow meter, the GasMicro instru-ment takes the meter’s electronic signal output and uses it to calculate the corrected volume, according to AGA7 and AGA8. These data are logged and stored in memory for record keeping, and ultimately, for data distribution.

The diagram below shows a typical gas-distri-bution system and the locations (A-D) where a Galvanic GasMicro instrument would provide a cost-effective solution to assure that customers receive the precise amount of natural gas they expect, and distribution companies bill appropriately.

Ideal Gas LawAn ideal gas can be characterized by three state variables: absolute pres-sure, volume, and absolute tempera-ture. The relationship among them is called the Ideal Gas Law. According to the law, PV=nRTWhere: P=pressureV = volumen = number of moles R = universal gas constantT = temperature.When the constants are removed, the relationship becomes:

PV ∝ Tor

V ∝ T/P

Typical Natural Gas Distribution System

A

B

C

D

Points A through D show ideal placement of the Galvanic GasMicro instrument

= Distribution Station

Local Distribution

Small-Industrial Distribution

The most economical electronic volume correc-tor on the market today, the GasMicro instru-ment enables precise billing for custody transfer. It will provide years maintenance-free service, delivering accurate and auditable records:

~ Measurement Canada-approved for custody trans-fer with 12-year initial re-verification for pressure and temperature

~ User-friendly GasMicro IMACS® Windows® PC soft-ware with point-&-click/drop-&-drag functionality for easy local or remote configuration

~ Fully configurable Modbus (Enron RTU) & three levels of password protection for optimal security

~ Automated options include: automated meter reading/reporting & configurable alarms capable of initiating automatic dial-out alarm or email notifications

~ AGA 7 & AGA 8 volume-correction calculation methods

~ Instrument mount with integrated pulse generator for turbine, rotary, dia-phragm or positive-displacement meter with optional remote mounting of the pulse generator GasMicro index with integral pulse generator

~ Pulse outputs for controlling odorant or other process devices

~ Reverse flow and rocking-detection compensation

~ Long battery life with redundant sup-plies using alkaline or lithium batteries

~ Solar power or external 110VAC – 12VDC switching supply available

~ Rugged design with industrial com-ponents and four-year comprehensive warranty

~ Redundant mechanical backup measurement for continuous measure-ment – even with electronic failure!

www.galvanic.com ⎜info@galvanic.com ⎜toll-free:+1.866.252.8470 ⎜+1.403.252.8470