质量保证：小数点之后，数字密度计记录多达五位数字，可以精确测量水溶液的密度，相对密度或浓度。
Thanks to a micro-mechanical measuring cell, theKruess OptronicDS7400和DS7500型号仅需要80 µL的样品体积。内置的Peltier恒温器可确保精确的温度控制和可重复性。
The DS7800 and DS7900 models use the proven flexural resonator (oscillating U-tube) concept. Here, too, a Peltier thermostat has been integrated. The higher sample volume of 2 ml allows a higher viscosity measuring range.
An enclosed air-drying unit and a flexible-tube pump for sample introduction (manual introduction is also possible) extend the usability of the devices.
An intuitive-to-use touch screen makes set-up easy, and costly training is avoided. An internal SQL database manages the measurement results. These can be forwarded directly to the PC in HTML or Excel via RS-232, USB and Ethernet interfaces.
设备在日常条件下的稳健性，价格大大低于正常行业利率，可以实现具有成本效益和持久的质量控制。