Reg. No CK 91/03521/23

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MEMBERS: R.K. Holloway  P.Newton

Postal:  PO Box 73892, Fairland, 2030, South Africa

VAT Reg. No: 4740121910

Physical: Drostdy Street, Cleveland, Johannesburg

TEL: (+27  011) 622 5448

E-mail:   qualitec@global.co.za

FAX: (+27  011) 622 7493

Web: www.qualitec.co.za


Designed for measurement of convergence in mines.


Operating principle: -

The instrument, which is portable, measures convergence between pairs of reference points.

The spring Vernier is a tool for checking changes in measurement, when compared to previous readings. Accuracy is 0.2mm or better with a trained operator.


Features: -

  1. Simple, reliable and easy to read.
  2. Can be operated by one person.
  3. Measurement to 3 Metres, when used with measuring chains.
  4. Intended for relative measurements only. Temperature may change measurements.
  5. Non-corrosive materials used, (anodised aluminium and stainless steel).
  6. Presented in a PVC carry case.
  7. Vernier list price R4728, 00 plus VAT (valid until End May 2017)
  8. Carry case priced at R844, 00 plus VAT (valid until End May 2017)
  9. 2 m long measuring chain priced at R1100, 00 plus VAT ( valid until End May 2017)


(1) Carry case   (2) Spring Vernier   (3) Measuring chain

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