توضیحات

Whiteness Meter

1. Instructions

It is applicable in measuring the whiteness of the textile printing and dyeing, paint and coatings, chemical building materials, paper, cardboard, plastic products, white cement, enamel, porcelain clay, talc, starch, flour, salt, detergents, cosmetics and other objects, etc.

2. Features:

• Small and light, real easy to be carried and used.
• One 1.5V alkaline Battery can be used for almost 60 hours and 10000 readings.
• Start and Measure, no waiting.
• Long-term stable light source needs no replacing for ever.

3. Parameters:

• Projection Degree: 45/0
• Measurement range: 0～9
• Whiteness display：bluewhitenessR457
• Light source: D65
• Accuracy: 1.5%
• Repetition: 0.2 Power: 1.5vAA
• Measurement aperture: 12×26mm
• Dimension: 114×32×64mm
• Weight : 300g

4. Operation:

• Power On: Presses down the switch pressed key, the display monitor appears the reading.
• Calibration: Open the standard board box, places the instrument survey mouth the standard board. The instrument must put locates in the frame. Turning the Calibrate knob and causes the display monitors the reading to conform to the standard board value.
• Measurement: Put the instrument onto the object, then the reading that display screen shows whiteness value.
• Power Off:
  1. Long push the switch.
  2. The instrument will power off in three minutes automatically.
  3. Notice:
• Avoid direct sunlight should be used, otherwise affect measurement accuracy.
• Measurement of the surface samples, if there is no distinction or transverse, longitudinal uniform texture, can be selected at different places and different angle measured multiple times, and the average value for its whiteness
• The transparent characteristics of objects, such as paper, cloth, and a variety of fiber products to take some layer overlap, so that it does not light.
• If the measurement of powder and granular samples please send the samples into the powder box, must be filled with. Then the glass plate presses it into a plane, and then measuring instrument. After measuring instrument bottom surface must be clean. It is just a simple measurement method, may affect the measurement repeatability. For accurate measurement of press sampler with constant pressure powder. Order it separately.

6. Maintenance

• Standard plate instrument with a belt should be kept clean, do not use your fingers touch the surface, such as surface stains, will cause the instrument error and increase the reading is not accurate, use lens paper or cotton swab dipped in a little anhydrous alcohol wipe.
• Instrument when in use, please put in the measured object surface, avoid in the measurement of powder sample time, cause lens pollution. The instrument does not use, please put in the instrument portable box.
• The instrument design of battery usage rate high, when the battery is used to 0.9V the following, instrument readings began to decline, the instrument display on the upper right corner under electric lights, warning the operator has run out of battery power, the battery needs to be replaced. Open the battery cover instrument left, remove the old batteries, replace a new battery, anode toward the inside, positive towards the outside, on the cover of the battery compartment cover, will be able to use the instrument.
• Do not usefake battery, may cause the liquid flow, damage to the machine.

7. Guarantee

• If users have any question. Please contact our company in time.
• As following situations general will pay (about material fee, labor cost and delivery fee).
  • Exceed guarantee term.
  • Abnormality used, include man-made attaint, high temp, high press, humidification, battery liquid. (Please choose the good quality battery.
  • The other reason like use the apparatus go against the Manual.
  • Package List

  • Whiteness Meter

  • Standard board box

    Plastic package

  • User manual

  • Certificate of quality

  • Lens cloth

  • Paper Box