CHK Power Quality Pty Ltd, User Manual – Miro Power Quality Logger and Analyser, 15 August 2016
Website: www.chkpowerquality.com.au; Enquiries: sales@chkpowerquality.com.au; Page 175
Address: Unit 1, 3 Tollis Place, Seven Hills, NSW 2147, Sydney, Australia; ABN: 53 169 840 831; Telephone: +61 2 8283 6945;
Fax: +61 2 8212 8105; Website: www.chkpowerquality.com.au
7 Support services
7.1 Operational information
If you have questions regarding the operation of the Miro PQ25/35/45 instrument or the
Citrus software and not covered by this user manual then please contact our Technical
Services Manager.
7.2 Firmware and software upgrades
The Miro PQ25/35/45 is a complex instrument which utilises embedded firmware and PC
based software (Citrus). CHK Power Quality Pty Ltd occasionally release firmware upgrades
for the Miro PQ25/35/45 and new versions of Citrus. It is recommended to download and
install the latest updates.
The current version of firmware and software for the Miro is available for downloading from
our downloads page at http://www.chkpowerquality.com.au/downloads/
Users who have electronically registered with CHK Power Quality Pty Ltd will be notified of
firmware upgrades and new versions of Citrus.
7.3 Technical sales and assistance
The Miro PQ25/35/45 instrument is designed and manufactured by CHK Power Quality Pty
Ltd and is currently located at Unit 102, 25 Angas Street, Meadowbank, NSW, 2114,
Australia. Please see our website for up-to-date contact information.
If you are experiencing any technical issues, or require any assistance with the proper use or
application of this instrument, please contact our Technical Services Manager.
7.4 Calibration
We recommend that the Miro instrument be recalibrated every twelve (12) months.
Please note that only CHK Power Quality Pty Ltd has the know-how to recalibrate the Miro
instrument. Other institutions can only provide a calibration check. Therefore the Miro
instrument must be returned to CHK Power Quality Pty Ltd for recalibration.
7.4.1 Acceptance testing
Notes for customers who intend to verify the calibration accuracy of the Miro instrument.
7.4.1.1 Voltage calibrators
The Miro can draw up to 15VA on phase A which equates to approximately 65mA at 230V.
Voltage calibrators are designed to source much lower currents, in the vicinity of less than
10mA to maintain their accuracy and voltage stability.
Operating the calibrator outside its intended operating limits by loading it with 15VA will most
likely affect the calibrator as follows:
Operation outside of specification;
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