Kern ADB 100-4 analytical balance, 120 g / 0.0001 g, external adjustment

The Kern ADB is an analytical balance with a plastic housing, electromagnetic force compensation and a glass draught shield with three sliding doors. There are three models to choose from. The ADB 100-4 weighs up to 120 g, the ADB 200-4 up to 220 g, both with a readability of 0.0001 g (0.1 mg). The ADB 600-C3 is a carat balance with a weighing range of 600 ct and a readability of 0.001 ct. All three models are adjusted using an external weight and feature a standard RS-232 interface.

Three models, two weighing units

The ADB 100-4 and ADB 200-4 differ in their weighing range and stabilisation time: according to the data sheet, the ADB 100-4 takes 4 s, whilst the ADB 200-4 takes 3 s. Both models also display carats. On the ADB 100-4, the carat display ranges up to 600 ct with a readability of 0.001 ct; on the ADB 200-4, it ranges up to 1,100 ct with a readability of 0.0005 ct. The ADB 600-C3 is designed for carats and therefore has a flatter housing: 210 mm high instead of 330 mm, a weighing chamber measuring 170 x 160 x 110 mm instead of 170 x 160 x 205 mm, and a net weight of approximately 3.8 kg instead of 4.4 kg. Kern specifies gemstones as the items to be weighed for this model.

External adjustment using the CAL programme

Accuracy is set using the CAL adjustment programme with an external test weight. The weight is not included in the scope of delivery and is available separately. According to the data sheet, Kern recommends, for the ADB 100-4 and the ADB 600-C3, 120 g of class E2, and for the ADB 200-4, 200 g of class E2. This does not replace a calibration certificate, which is available separately (see below). The spirit level and adjustable feet are used for levelling.

Glass draught shield and set-up

The glass draught shield has three sliding doors for access to the item being weighed. Its internal dimensions are 170 x 160 x 205 mm; for the ADB 600-C3, they are 170 x 160 x 110 mm. The stainless steel weighing pan has a diameter of 90 mm. The permissible range is 10 °C to 30 °C and 20 % to 85 % humidity. According to the operating instructions, the balance should warm up for 8 h before the first weighing. To protect against vibrations at the installation site, Kern offers the YPS-03 anti-vibration table and two anti-vibration plates; to protect against electrostatic charge, it offers ionisers.

Piece counting, units and display

The balances count parts with a unit weight of 1 mg or more under laboratory conditions and 10 mg or more under standard conditions. Percentage determination and a standby function are also available. The counting resolution under laboratory conditions is 120,000 (ADB 100-4) and 220,000 (ADB 200-4). The available units are g, ct, lb and oz; the ADB 200-4 also displays PCS and %. The backlit LCD has 16 mm high digits and is operated via six buttons.

ADB or ADJ

In addition to the ADB, Kern offers the ADJ series, comprising the ADJ 100-4 and ADJ 600-C3 models, which adjust automatically using an internal weight. The ADB requires an external test weight for this. If you prefer automatic adjustment, take a look at the ADJ series.

Typical applications

• Educational institutions: operation via six buttons
• Laboratory applications: weighing up to 120 g or 220 g to 0.1 mg (ADB 100-4, ADB 200-4)
• Quality control: counting small parts and determining percentages
• Gemstones: weighing in carats to 0.001 ct (ADB 600-C3)

The ADB 100-4 is suitable for weighing up to 120 g, whilst the ADB 200-4 covers up to 220 g. The ADB 600-C3 is suitable when weighing in carats and the display is to operate in ct from the outset.

Models at a glance

Technical details

These values apply to all models. Deviating values are given in the model table.

Scope of delivery

• Kern ADB analytical balance with stainless steel weighing pan (Ø 90 mm) and glass draught shield
• Power supply with country adaptors for EU, UK and US

The scope of delivery does not include a test weight, but it is available separately.

Calibration

A DAkkS calibration certificate can be ordered separately (item no. 963-101). The confirmation of manufacturer specification (969-517) is only available in conjunction with the DAkkS calibration certificate. Kern does not specify a conformity assessment under the NAWI Directive (2014/31/EU) for any of the three models.

Warranty

According to Kern & Sohn, these devices come 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 ADB (PDF)

Regulatory information

As electrical devices, the balances fall 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

Test weights, ionisers (ABP-A01, YBI-01A), anti-vibration table (YPS-03), anti-vibration plates (YPS-04, YPS-05), thermal printer (YKC-01), needle printer (YKT-01), RS232 Bluetooth adapter (YKI-02), RS232 Ethernet converters (YKI-10, YKI-11), RS232 WLAN converter (YKI-12) and the RS-232 interface cable (MLB-A05) are also available. For the ADB 100-4 and ADB 600-C3, Kern also lists the RS232 to USB converter (AFH 13) and the Safety Set 315-107-103 with the weights 5 g (E2) and 100 g (E2); for the ADB 200-4, the Safety Set 315-108-104 with 10 g (E2) and 200 g (E2) and the test weight 317-08 (200 g, E2). Enquiries are handled via our procurement service.