Kern ABT 120-5DNM analytical balance 42 g / 0.00001 g and 120 g / 0.0001 g

The Kern ABT 120-5DNM is a multi-range analytical balance with a single-cell weighing system for weighing up to 120 g. Up to 42 g it reads to 0.00001 g (0.01 mg), above that up to 120 g to 0.0001 g. The balance automatically switches to the higher weighing range as the load increases and returns to the finer range once the load has been completely removed. The glass draught shield has three sliding doors, the housing is made of metal, and the LCD display features digits 14 mm high.

Two weighing ranges in one instrument

In the lower range, the ABT 120-5DNM weighs up to 42 g with a reproducibility of 0.00002 g and a linearity of ± 0.00003 g. In the upper range, the values are 0.0001 g, ± 0.0002 g and a maximum of 120 g. The stabilisation time is 10 s in the fine range and 4 s in the coarse range; at Kern, the values are listed in the order of the weighing ranges. This suits workstations where small portions in the milligram range and larger quantities alternate on the same balance.

Adjustment, formulating and documentation

The internal automatic adjustment adjusts the balance when the temperature changes by 0.5 °C or more and additionally every 4 h. This is not a calibration with a certificate; the certificate is available separately (see below). At the touch of a button, the balance prints out an adjustment report in GLP format. The balance identification number is four digits long, freely programmable and is shown on the report. When formulating, the balance automatically numbers the mixture components and outputs them with number and weight value; tare and print share one key. The Net-Total function adds up the weight values of the components and prints the total weight. The balance outputs value, date and time independently of a connected printer. After each standstill of the balance, it sends the data automatically to a PC or printer. An RS-232 interface is fitted as standard for this.

Additional functions

A high-stability mode and other filter settings are available as a dosing aid. Further functions are piece counting (minimum unit weight 1 mg under laboratory conditions, 10 mg under standard conditions), percentage determination, density determination for liquids and solids, and below-balance weighing. According to the data sheet, the hook for this is included in the scope of delivery. The units are g and ct; the stainless steel weighing pan has a diameter of 80 mm. The spirit level and adjustable feet are used for levelling.

Typical applications

• Laboratories: weighing in samples and standards in the milligram range
• Research: precision weighing with recorded adjustment status
• Quality control: weight checks with printout of value, date and time
• Universities: laboratory workstations where GLP-compliant adjustment reports are needed

For the ABT 120-5DNM, Kern specifies neither a verification value nor a conformity assessment under the NAWI Directive (2014/31/EU). Anyone who needs such a conformity assessment should ask for a model with this option.

Technical details

Calibration

A DAkkS calibration certificate (item no. 963-101) can be ordered separately. The confirmation of manufacturer specification (969-517) is only available in conjunction with the DAkkS calibration certificate.

Scope of delivery

• Kern ABT 120-5DNM analytical balance with stainless steel weighing pan (Ø 80 mm) and glass draught shield
• Working protective cover
• Hook for below-balance weighing
• Plug-in mains adaptor with country adaptors for EU, AUS, UK, US and CH

Warranty

According to Kern & Sohn, this device comes with a 3-year warranty. Kern grants 3 years on products with a list price of €500 or more and 2 years on products below that and on components; wear parts such as batteries and rechargeable batteries are excluded. Warranty repairs are carried out by Kern or by a Kern dealer.

Downloads

• Operating instructions Kern ABT (PDF)

Regulatory information

As an electrical device, the balance falls under the ElektroG. The manufacturer Kern & Sohn GmbH is registered under the WEEE registration number DE 80821200. How to return old appliances is described on the page Environment and disposal.

Individual requirements and procurement service

Working protective covers (ABT-A02S05, 5 pieces), ionisers (ABP-A01, YBI-01A), gemstone pan (AEJ-A05), density determination kit (YDB-03), anti-vibration table (YPS-03), anti-vibration plates (YPS-04, YPS-05), thermal printers (YKC-01, YKH-01), dot-matrix printer (YKG-01), needle printer (YKT-01), RS232 Bluetooth adapter (YKI-02), RS232 Ethernet converters (YKI-10, YKI-11), RS232 WLAN converter (YKI-12), RS-232 interface cable (770-926, ACS-A01) and RS232 to USB converter (AFH 13) are also available. Kern lists 315-107-103 as the Safety Set, with weights of 5 g (E2) and 100 g (E2). Enquiries are handled via our procurement service.