KIVA

Ohaus Scout SKX222 portable scale, with plate Ø120mm The OHAUS Scout scale, with its large backlit L (more)CD display and integrated educational software, is the ideal tool for use in the classroom. It offers premium quality overload protection, fast stabilization times, increased range, more connection options and stackable design - the most advanced learning weighing experience. Applications Weighing, density determination, weighing of moles Screen Liquid crystal display (LCD) with backlight Operation AC adapter (included) or 4 AA batteries (not included) Communication RS232, USB host, USB device, Ethernet or Bluetooth ™ (available as an accessory) Construction ABS housing, stainless steel pan, ABS draft shield (1mg model only), bottom weigh hook, transport lock, manual calibration lock switch, security slot Characteristics of the project Stability indicator, stackable design with storage lid included (excluding 1 mg model), mechanical and software overload / underload protection, low battery indicator, automatic shutdown, automatic tare, span calibration mass included on models with capacity up to 620 g Applications integrated in the scale: - Weighing: allows you to calculate the weight of the samples in the selected unit of measurement. - Density determination: calculation of the density of solids or liquids. Thanks to the integrated weigh below hook, it is possible to carry out tests for the specific gravity of objects that cannot be placed on the weighing pan. - Molar concentration: calculation of the mass of a sample and automatic conversion into the molar concentration.

RADWAG-manufactured AVK-1000 automatic vacuum mass comparator is intended for national metrological  (more)institutes that transfer and maintain the national reference mass standard of 1 kg. The comparator is intended for weighing mass standards and silicone spheres of 100 mm diameter. It enables comparison of up to 6 prototypes of max 1kg mass. The repeatability of the process is of 0.3 µg and readability of d = 0.1 µg. A specially designed vacuum chamber enables carrying out measurements in a vacuum of 10-6 mbar capacity or in atmosphere containing noble gases. AVK-1000 is equipped with suspended weighing pan that eliminates eccentricity errors. Standard version of the mass comparator features thermo-hygro-barometer for testing ambient conditions with great accuracy: pressure of 0.001hPa, humidity of 0.01% and temperature of 0.001 °C. The comparator is also equipped with high quality vacuum gauge. The AVK-1000 vacuum mass comparator can be equipped with the LOAD LOCK system for carrying mass standards. The system enables switching or adding artefacts without changing the atmosphere inside the main chamber. With the use of a special chamber for mass standards switching the whole process is 90% shorter. During mass standards replacement carried out without the use of the LOAD LOCK system, the air enters the main chamber of the mass comparator. After each opening of the chamber it is necessary to pump the air out in order to obtain required vacuum value. The vacuum mass comparator needs approx. 48 hours in order to obtain vacuum that ensures measurement repeatability. The LOAD LOCK is equipped with a high-efficiency pump system, the time of pumping the air out in order to enable opening of the valve of the main chamber is significantly shortened. The stabilization of the main chamber after replacing/adding the mass standard and closing the valve connecting the main chamber and the LOAD LOCK system takes 5 hours. The high-quality vacuum gauges enable monitoring and comparing the vacuum value in order to determine the moment when opening the valve again and replacing the mass standard is available. A specially designed viewfinder enables monitoring of the process. The LOAD LOCK enables switching objects of dimensions adapted to the AVK-1000 mass comparator: cylindrical mass standards of 22-95 mm diameter and silicone spheres of 40-100 mm diameter. Supplementing the AVK-1000 vacuum mass comparator with LOAD LOCK system significantly improves the comparison performance.

Ohaus SHRK04DG Rocking ShakerThe OhausSHRK04DG Digital Rocking Shaker is ideal for cell culture work (more) and is designedto be used in a variety of environmental conditions.The SHRK04DGis designed for use in a range of lab applications in a variety ofenvironmental conditions. Rocking Shakers provide a seesaw-like motion. Themicroprocessor-controlled digital models include a non-slip mat, and mostmodels are available with a stacking tray option.Microprocessorcontrol allows for electronic tilt angle adjustment in 1° increments for tiltand 1 rpm for speed.Digitalmodels are equipped with LED displays and touchpad controls for speed, tiltangle and time. Timer displays elapsed time or when programmed to a set time,will turn off when time reaches zero.Speed rampingfeature slowly increases speed to desired setpoint to avoid splashing.Audible/visual signals activate when the system detects an obstruction or trayoverload. INCLUDED: The Ohaus SHRK04DG Rocking Shaker includes: - Non-Skid Rubber Mat - Power Cord - Operator's Guide - Manufacturer's Documentation - 2 Year Manufacturer's Warranty