Measuring and Inspection Equipment

Stocked item: delivered in 1–2 working days in Ho Chi Minh City, Binh Duong and Dong Nai; free delivery for orders from VND 20,000,000; defective items exchanged within 7 days. Shipping & return policy

Product code: MEASURE · Specification: Measuring and inspection equipment (electronic scales, magnifiers, calipers, barcode scanners)

Measuring & Inspection Equipment

Common specifications: bench clamp magnifier, thermo-hygrometer, 150 mm caliper.
Delivery: stocked items are delivered in 24–48 hours (Ho Chi Minh City, Binh Duong, Dong Nai); scales and printers 5–7 days; availability confirmed with the quotation.

Scales: 0.01 g precision balances (component counting, weighing solder paste), 30/60/150 kg bench scales (warehouse), dial scales. Viewing: 5D/8D bench clamp magnifiers with LED ring light, head-mounted magnifiers, 7–45× stereo microscopes for solder joints, hand-held magnifiers. Mechanical measurement: 150/200/300 mm digital calipers, micrometers, dial indicators, granite bases, gauges, master pins (Mitutoyo/Insize). Environment: cleanroom thermo-hygrometers, temperature pens, wood moisture meters, clarity meters. Electrical: multimeters, clamp meters, LCR meters. Barcode: Zebra/Honeywell corded/cordless scanners, Brother/Zebra label printers, component counters.

Group Model / specification
Scales Ohaus/Shinko 0.01 g × 500 g; bench scales 30–150 kg; dial scale 30 kg
Magnifiers / microscopes Bench clamp 5D/8D LED; head-mounted; stereo microscope 7–45×
Mechanical measurement Calipers 150–300 mm; micrometer 0–25; dial indicator 0.01; granite base 300×300
Environment Wall-mounted/desktop thermo-hygrometers; temperature pens; wood moisture meters
Electrical Kyoritsu/Hioki multimeters; clamp meters; LCR
Barcode Zebra DS2208, Honeywell 1250g; TSC/Zebra printers; reel counters

MOQ 1; calibration supplied on request.

FAQ
– What dioptre magnifier do I need? — 5D (2.25×) for long sessions; 8D (3×) for inspecting small solder joints.
– Do the scales come with a calibration certificate? — Yes, PRIMEAG arranges 12-month calibration on your behalf.

Magnifiers: what is the difference between “D” and “×”?

The “D” (dioptre) is the optical power of the lens. Nominal magnification is calculated with the formula M = D/4 + 1, based on a conventional near point of the eye of 25 cm. Therefore:

Dioptre Nominal magnification Used for
3D 1.75× Reading labels, prolonged visual inspection
5D 2.25× Visual inspection, assembly for many hours
8D 3× Inspecting small solder joints

Actual magnification depends on where the lens is held and on the user’s eyes. The stronger a simple magnifier, the narrower the field of view and the greater the edge distortion; when a stable magnification above about 10× is needed (IC leads, cracks), switch to a stereo microscope.

Calipers: how accurate are they really?

  • A typical 150 mm digital caliper has a resolution of 0.01 mm but an accuracy of about ±0.02 mm; longer calipers are less accurate — about ±0.03 mm for 100–200 mm and ±0.04 mm for 200–300 mm. Do not confuse the decimal places on the display with accuracy.
  • Four measuring modes: outside (large jaws), inside (small jaws), depth (depth rod), step (end face of the caliper).
  • Measuring force affects the result: squeezing too hard gives a smaller reading, too lightly a larger one. Micrometers have a ratchet that limits the force, so they repeat better.
  • Check the zero before measuring: close the jaws, wipe them clean, set to 0. A caliper that has been dropped or knocked may no longer return to zero — it must be sent for calibration or repair.
  • Digital calipers are sensitive to oil, coolant and dust; mechanical (vernier) calipers are robust and need no battery but are harder to read.

Electronic scales: what causes errors

  • Draughts and airflow: 0.01 g balances are affected by air-conditioning and fans — use a draught shield and do not place them under an air outlet.
  • Temperature: the item being weighed must be at room temperature; hot items create convection currents, cold items collect condensation and cause errors.
  • Static electricity: plastic cups, PS trays and reels build up charge that creates an attractive force with the scale — the reading keeps jumping. Use metal trays, ESD trays, or an ionizer (code EI) to neutralise before weighing.
  • Vibration, uneven surfaces: the scale must be levelled with its bubble level and placed on a rigid surface.
  • Electronic scales must be recalibrated at the place of installation, because gravitational acceleration varies with location; after that, check periodically with traceable reference weights.

Calibration and legal verification

  • Quality management systems (ISO 9001, IATF 16949) require measuring equipment used for product acceptance to have traceable calibration to national/international standards, a status label and records.
  • In Vietnam, scales used for trade and for the handover of goods are subject to legal verification under metrology law (check against the current list of measuring instruments requiring verification); scales used internally (component counting, process checks) are usually calibrated at intervals set by the plant itself — typically 12 months.
  • Between calibrations, run quick daily/weekly checks with reference weights, gauge blocks and master pins, and record them in a log.

Using measuring equipment in ESD areas

  • The plastic housings of digital calipers, barcode scanners and scales are insulators. Do not place them close to bare components; in highly sensitive areas choose equipment with ESD housings or use an ionizer.
  • Barcode scanners and label printers placed on an ESD bench should have properly earthed power cords.

Common mistakes

  • Treating resolution as accuracy.
  • Not re-zeroing; measuring parts that still have burrs or are oily.
  • Weighing goods in charged plastic trays or under an air-conditioning outlet.
  • Still using equipment that is overdue for calibration to make pass/fail decisions.

Technical references

Price: from 180,000 VND (excl. 8% VAT).

REQUEST A QUOTE: send the quantity and specifications you need — PRIMEAG quotes within 30 minutes.

Hotline/Zalo +84 906 108 292 · info@primeag.vn

Written by the PRIMEAG engineering team.

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Updated: 2026-10-24

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