Laboratory Paper Brightness Color Meter
- Model NO.: PN-48B
- Load Way: Electronic Load
- Display: Touch Screen
- Power Source: AC220V
- Video in Youtube: HTTP://Youtu.Be/Cauz8ew5hhg
- Transport Package: Wood Case, Free-Fumigation
- Origin: Hangzhou, Zhejiang
- Type: Material Testing Machine
- Loading Method: Dynamic Load
- Weight: 0-100Kg
- Standards: ISO 2469, ISO 2470, ISO 2471
- Trademark: PNSHAR
- Specification: ISO
- HS Code: 90248000
1. INTRODUCTION:
This is brightness color meter.
Brightness color meter is mainly used to test the whiteness of diversified objects such as paper and board, pulps and chemical fiber, textile, plastic, ceramic, enamel, fecula, salt, white cerement, porcelain clay and French chalk, etc. It can also be used to test the optical performance of sheet materials, for example, opacity test.
2. APPLICATIONS:
Paper, Board, Pulps, Chemical fiber, Textile, Plastic, Ceramic, Enamel, Fecula, Salt, White cerement, Porcelain clay and French chalk etc.
3. STANDARDS:
ISO 2469, ISO 2470, ISO 2471, GB/T 7933, GB/T 7974, GB/T 8940.2, GB/T 1840, GB/T 2913, GB/T 13025.2, GB/T, 1543, ISO 2471, GB/T 10339, GB/T 5950 Etc.
4. FEATURES:
1). Measure the Blue Reflectance Factor (R457) of samples. Blue Reflectance Factor is so called "Blue Whiteness" or "ISO Brightness".
2). Analyze the sample to find out whether it contains any fluorescent brightener. If so, measure the fluorescent whiteness further, namely whitening rate.
3). Measure the opacity, transparency, light scattering coefficient and light absorbing coefficient.
| NO. | ITEM | SPECIFICATION |
| 1 | This instrument complies with GB3978-83; Standard illuminator and illuminating--viewing conditions. | |
| 2 | Simulate D65 illuminator to illuminate. Adopt d/o illuminating--viewing geometrical coanditions. Diameter of the diffusion sphere is 150mm and diameter of the testing hole is 25mm. | |
| 3 | Light absorber is provided to eliminate the effect of specular reflection. Peak wavelength of spectral power distribution of R457 whiteness optical system is 457nm and its half-width is 44nm. | |
| 4 | Measure and display the whiteness, Fluorescent whiteness (whitening rate) and opacity (%) etc. digitally. | |
| 5 | Indication error: | 0.50% |
| 6 | Sample size: | Test plate diameter should not be less than 30mm while sample thickness should not exceed 40mm. |
| 7 | Power supply: | 160V-260V, 50Hz, 0.3A |
| 8 | Measure time: | 3s |
| 9 | Working condition: | Temp.0-40oC, relative humidity<85%. |
| 10 | Size and weight: | L×W×H=365×260×425mm, 11kg |
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Cooling capacity 20kW-50kW
Characteristics:
1. Structure: Panels and base frame are made from galvanized steel protected with polyester powder painting to ensure total resistance to atmospheric agents.
2. Compressor: Hermetic scroll type compressor, equipped with the crankcase heater and thermal protection with thermal overload cut-out and crankcase heater mounted on rubber vibration isolators.
3. Axial fan: External rotor type axial fans, equipped with single phase direct drive motors, low noise 6 poles, protection level IP54, provided with a protective outlet grille.
4. Evaporator: High efficiency and low pressure drop stainless steel (AISI 316) water exchangers, with anti-freeze heating element (option) and differential pressure switch, factory insulated with flexible close cell material
5. Condenser Coils are consisting of seamless copper tubes mechanically expanded into blue hydrophilic aluminum fins, 100% fully quality tested; sub cooling circuit to prevent freezing at the base (optional); protected with metal grill.
6. Desuperheater: High efficiency stainless steel brazed plate heat exchanger, factory insulated with flexible close cell material(optional).
7. Refrigerant circuit: Copper tube connection with charge valve, filter, sight glass, gas-liquid separator, thermostatic expansion valve, low pressure switch with automatic reset, high pressure switch with manual reset. The heat pump unit is completed also with 4-way valve, liquid receiver and one way valve.
8. Water circuit: Built with air vent valve, water drain connection, and female-threaded hydraulic connectors. Water pump (8kW-30kW), differential pressure switch. Expansion tank (8kW-30kW)
9. Electric panel: Compressor contactor, Compressor protection breaker, Fan motor protection breaker, Control circuit protection breaker, Phase sequence relay (only for 3-phase), Programmable microprocessor controller
10. Optional: Additional electric heater embedded in the coils for defrosting in low temperature ambient. It must be factory installed; Stainless steel covering; Remote condenser; Tube in tube heat exchanger; Water circuit electric heater.
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