此款密度儀應用了最新的技術和創新的方案,因而DR842是一款復合型密度儀,可以在非常有競爭力的價格上達到從前無法得到的性能。 微控制器可以保證低能量消耗,每次充電可以測量超過20000次。 14位計算器可以保證異常精確的測量,密度讀數精確到小數點后三位,網點百分比讀數精確到小數點后一位。 光學系統符合ISO CD 14981 標準,使用9個LED光源(每色三個),完全去除了老一代密度儀由于濾色鏡和白熾燈快速老化而引起的典型問題。 不管是通過已鑒定的校正片來校正還是使用密度儀的其他模式,DR842的校正過程都是非常快速和簡單的。
功能 1:在白紙上歸零(設定白場) 2:自動顏色選擇 3:密度和密度差 4:灰平衡 5:網點面積百分比 6:自動模式(同時測量密度和網點面積)
7:測量密度可精確到小數點后三位
技術規格 測量面積直徑: 3.5毫米 光譜響應: E光譜(窄帶)或T光譜(寬帶) 測量范圍: 0-2.5D(密度) 0-100.0(網點面積百分比) 重復精度/線性度: ±0.010D(密度) ±0.5(網點面積百分比) 不同儀器間精度: ±0.020D(密度) 顯示屏: LCD,兩行,每行8位 預熱時間: 不需預熱 操作溫度范圍: 5℃-40℃ 每次充電可測: 20000次 電池: 鎳-鎘充電電池 重量: 360克 尺寸: 125*67*48毫米
標準配件: 包裝盒、充電器、校正卡 RS232數據線,操作手冊
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Mini densitometer using the latest technology and extremely innovative solutions, resulting in performances never before available in such a competitively priced and compact instrument. The micro-controller ensures a low energy consumption to give more than 20.000 measurements per charge. The converter with 14 BITS produces measurements of exceptional precision and repeatability - density readings up to 3 decimal points and dot percentage readings to 1 decimal point. The optical system meets the ISO CD 14981 standard using a light source of 9 LEDS (3 of each colour), completely eliminating problems caused by the rapid ageing of the filters and of incandescent lamps, typical of densitometers of the past generation. The calibration procedure for the DR842 is very quick and simple, either calibrating on a certified reference tablet or on other models of densitometers. FUNCTIONS Zeroing on the white paper. Auto colour select. Density and difference of density. Grey balance. Percent dot area. Automatic. Possibility to display 3 decimal points for measurements in density. SPECIFICATIONS Measuring area diameter: 3,5 mm. (on request 2 mm.) Spectral response: equivalent to status E (narrow band) or to status T (wide band) Measuring range: 0 - 2,5 D (density) 0 - 100,0 (percent dot area) Repeatability, linearity: ± 0,010 D (density) ± 0,5 (percent dot area) Interinstrument agreement: ± 0,020 D (density) Display: LCD, 2 lines of 8 characters Warm-up time: none Operating temperature range: 5°C - 40°C Battery: rechargeable NiCd Measurements per charge: 20.000 Weight: 360 gr. Dimensions: 125 x 67 x 48 mm. STANDARD ACCESSORIES Carrying case, AC adapter-charger, calibration tablet, RS232 serial interface, operation manual. OPTIONS Polarising filter. AVAILABLE MODELS DR842 E narrow band spectral response without polarising filter. DR842 EP narrow band spectral response with polarising filter. DR842 T wide band spectral response without polarising filter. DR842 TP wide band spectral response with polarising filter. |