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Grid Test Chart

Grid Test Chart Instructions Operating Manual Grid Test Chart PDF
This Grid Test Chart Instrument are Certified with
certify
1 Years Warranty (Additional support period of 3 years)

NJ-10-100A is designed for operational adjustment and control of TV cameras. It consists of circles permitting rough visual appraisal of scan linearity, grid lines serving the purpose of adjusting registration and wedges serving the purpose of resolution appraisal.

A grid structure consisting of 23 horizontal and 35 vertical lines is arranged on a white background. 3 grid lines each divide the outer 3 grid rows in the middle. The width of the grid lines is 0.15% of the picture width. The large circular line has a diameter of 83 1/3% of the picture height, the 5 small circular lines have a diameter of 25% of the picture height.

4 resolution wedges are arranged in the large circle at angles of 0°, 45°, 90°, and 135° corresponding to signal frequencies of 2-10 MHz. (The marking ends at 8 MHz and 600 lines).

UTILIZATION

  • The test chart is designed for operational adjustment and control of TV cameras.
  • The circles permit rough visual appraisal of scan linearity.
  • The grid lines serve the purpose of adjusting registration.
  • The wedges serve the purpose of resolution appraisal.

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  • huawei
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FAQs About  Geometric Test Charts

Make sure the light sources are calibrated, keep extraneous light sources away, have the correct viewing angles, and handle the samples in a clean and uniform manner.


The accuracy of colors is determined by comparing the values of the colors (L*a*b*) of a sample with a standard reference sample using tools such as spectrophotometers. The variation is measured as ΔE. The smaller the value of ΔE, the more accurate, the nearer to the target color.


Standard models are available in a range of sizes, starting from small desktop units which are roughly the size of 60 x 40 x 40 cm, and extending to larger units which are about 120 x 60 x 80 cm based on what you need them for.


Look for dirty or fingerprinted glass along the optical path, recalibrate with standards, and check the set-up for outside light so that it is controlled. If the problems still exist, please reach out to the helpdesk or book a service with your professional service.

For professional paint matching (decorative, automotive, industrial, metallic/pearlescent), these are the top-performing spectrophotometers from 3nh — optimized for formulation, batch consistency, metamerism control, and field/shop matching:


1. 3nh YS6060 Premium Benchtop (Best Lab & Formulation)

  • d/8° sphere, SCI/SCE, UV control (360–780nm)

  • ΔE*ab ≤ 0.015, IIA ≤ 0.2 — ultra-precise for R&D

  • Multi-apertures (Φ4/8/15/25.4mm)

  • Transmission + reflection modes

  • Best for: Paint lab formulation, fluorescent pigments, color standardization

2. 3nh TS7700 Portable (Best On-Site / Production)

  • d/8° (SCI/SCE), ΔE*ab ≤ 0.02

  • Large Φ20mm aperture — averages texture/sheen

  • Fast, handheld, rugged

  • Best for: Paint store counters, job-site matching, production QC

3. 3nh MS3008 Multi-Angle (Metallic / Pearlescent Paints)

  • 8-angle measurement (15°/25°/45°/75°/110° + others)Threenh

  • For flip-flop, sparkle, pearlescent, metallic coatings

  • High stability for special-effect finishes

  • Best for: Automotive paint, powder coatings, metallic pigments, High-end industrial coatings, automotive OEM

4. 3nh YS3010 / YS3060 (Mid-Range Portable)

  • d/8°, SCI/SCE, UV adjustable

  • Interchangeable apertures (Φ4/8mm)

  • Bluetooth + USB

  • Best for: General paint store matching, routine QC

Short Best Recommendations

  • Lab formulation / R&D: 3nh YS6060

  • Portable on-site / paint store: 3nh TS7700

  • Metallic / pearlescent paint: 3nh MS3008

  • Entry-level portable: 3nh YS3010


All deliver stable spectral data, minimal metamerism, and perfect batch-to-batch consistency — critical for paint matching.


Threenh Technology with excellent after sale service, Generally, Our Spectrophotometer instrument warranty is one years(Additional support period of 3 years). Within the warranty period, we can offer technique support and parts to parts change, necessarily, our engineers may go to your place for better support. Our instrument have professional After-sales Dept, if you have any technical problem or question with our goods welcome to contact us.

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