主要规格及技术指标

"Light source: long-life tungsten deuterium lamp;
Monochromator: Low stray light Czerny-Turner monochromator design, 1200 grating lines/mm;
3. Double choppers to ensure that the energy of the reference light path and the sample light path are consistent, and the background influence can be accurately deducted;
4. Detector: a single high-sensitivity R928 photomultiplier tube, completely eliminates the problem of the sensitivity mismatch of the two detectors or the inconsistent attenuation speed;
5. Bandwidth: within the range of 0.2～4.0nm, the interval of 0.1nm can be adjusted automatically;
6. Wavelength range: 190～900nm;
7. Wavelength accuracy: ±0.2nm;
8. Wavelength repeatability: <0.08nm;
9. Photometric accuracy: ±0.003A (use NIST930 filter at 1.0Abs);
10. Luminosity repeatability: <0.0008A (1A NIST 930D filter)
11. Stray light: Cary300: <0.0005%T (220nm, 10g/L NaI ASTM method);
12. Noise: Cary300: <0.00006%T (0A, 500nm);
13. Baseline smoothness: ±0.001Abs;
14. Stability: <0.0003A/h (500nm, preheating 2h);
光源：长寿命氘灯钨灯；
单色器：低杂散光Czerny-Turner单色器设计，光栅刻线1200条/mm；
3.双斩波器，确保参比光路和样品光路能量一致，精确扣除背景影响；
4.检测器：单个高灵敏度R928光电倍增管，完全消除两个检测器灵敏度不匹配或者衰减速度快慢不一致的问题；
5.带宽：0.2～4.0nm范围内，0.1nm间隔自动调节；
6.波长范围：190～900nm；
7.波长准确度：±0.2nm；
8.波长重复性：<0.08nm；
9. 光度精度：±0.003A(使用NIST930 滤光片在1.0Abs )；
10.光度重复性：<0.0008A(1A NIST 930D滤光片）
11.杂散光：Cary300：<0.0005%T（220nm,10g/L NaI ASTM方法）；
12.噪 声：Cary300：<0.00006%T（0A,500nm）；
13.基线平滑度：±0.001Abs；
14.稳定性：<0.0003A/h（500nm，预热2h）；"

主要功能及特色

1. The dual beam, ratio recording system, and Czerny-Turner monochromator ensure ultra-low noise, ultra-low stray light and excellent wavelength accuracy.
2. All optical components are coated with quartz to prevent contamination and damage to the surface.
3. The optical system is strictly sealed to reduce stray light and noise while protecting optical components.
4. The bandwidth is 0.2～4nm, and the 0.1nm step length is automatically adjusted to ensure the excellent wavelength resolution of the instrument.
5. Using photomultiplier tube as detector, low noise and high sensitivity.
6. The double chopper ensures that the sample and reference beams are focused on the same point of the detector, and the sample and reference optical path are accurately calibrated, thus ensuring the high precision of measurement.
7. Excellent linear range, Cary100 absorbance linear range reaches 3.7Abs, Cary300 has a front monochromator, absorbance linear range reaches 5.0Abs, high absorbance samples are directly measured without dilution.
8. The large sample room is convenient for changing accessories and measuring large-size items.
9. Using SMT circuit technology, the electromagnetic interference is very small, so that the instrument has very low noise.
1.双光束、比例记录式系统、Czerny-Turner单色器，确保仪器超低噪声、超低杂散光和优异的波长准确度。
2.所有光学元件均采用石英涂层，防止表面受到污染损坏。
3.光学系统严格密封，减少杂散光降低噪声同时保护光学元件。
4.带宽0.2～4nm，0.1nm步长自动调节，确保仪器优异的波长分辨率。
5.采用光电倍增管作为检测器，噪声低，灵敏度高。
6.双斩波器保证样品和参比光束聚焦在检测器的同一点，精确校正样品和参比光路，从而保证了测量的高精度。
7.出色的线性范围，Cary100吸光度线性范围达到3.7Abs，Cary300带有前置单色器，吸光度线性范围达到5.0Abs，高吸光度样品直接测量，无需稀释。
8.宽大的样品室，便于更换附件和测量大尺寸物品。
9.采用SMT电路技术，电磁干扰极小，使得仪器具有极低的噪声。

主要附件及配置

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