BS Single Point Platform Scale

Six models, one logic: reading the series

In the BS series each model is defined by a capacity pair, an interval pair and two or three platform sizes. Read these three together and the right model usually suggests itself:

• 30/60 kg, 10/20 g, 35 × 40 or 40 × 50 cm: small cartons, samples, parts and recipe weighing. This model has the finest interval in the series.
• 60/150 kg, 20/50 g, 35 × 40 cm to 50 × 60 cm: courier benches, e-commerce parcels and medium-sized cartons.
• 150/300 kg, 50/100 g, 50 × 60 cm to 70 × 80 cm: sacks, drums, crates and wholesale sales.
• 300/600 kg, 100/200 g, 60 × 80 cm to 80 × 90 cm: heavy sacks, barrels and crate weighing inside the warehouse.
• 600/1000 kg and 600/1500 kg, 200/500 g, 90 × 110 or 120 × 120 cm: heavy loads on the floor, placed by hand or in a controlled way.

The first figure in the capacity pair is the limit of the lower range. On the 60/150 kg model, for example, parcels up to 60 kg are read in 20 g steps and those between 60 kg and 150 kg in 50 g steps. Since most parcels on a courier bench weigh between a few kilograms and a few tens of kilograms, almost all of them are weighed in the fine range in this use.

BS or a four-cell floor scale?

The upper BS models and the lower CP and TP models in the heavy-duty group come close to each other in capacity. The choice depends less on capacity than on how the load arrives and how big the platform must be.

The BS is designed for work where an operator sets each item down by hand or lowers it from a hand trolley in a controlled way. With its simple single-cell construction it is easy to install, practical to move and fits comfortably on or just in front of a bench. The platform tops out at 120 × 120 cm, the size offered on the two largest models.

If loads are set down by forklift, pallets will be wheeled onto the platform on a pallet truck, or a platform larger than 120 × 120 cm is needed, a four-cell floor scale suits the job better. As a rough rule: if a person can lift the item into place or brings it on a hand trolley, think BS; if a forklift or pallet truck comes in, think CP, TP or U-type.

Checkweighing and piece counting on the packing line

The checkweighing function on the BS indicator works as a direct quality tool on hand-packing lines. The operator sets a lower and an upper limit around the target weight. If a pack placed on the platform falls below the band the display shows LO, within it OK and above it HI, with a buzzer. For 25 kg sacks, for example, setting a band of 24.90–25.15 kg means an under-filled sack is noticed before the operator closes it.

For piece counting, the unit weight is taught to the indicator: a few parts are weighed as a sample, and once the full box is placed the indicator gives the count. For items that take time to count one by one, such as screws, seals, small castings or packaging materials, it cuts a stock count from minutes to seconds. How reliable the count is depends on the parts being close in weight and on weighing a large enough sample.

Daily use and indicator details

The 24-bit analogue-to-digital converter in the indicator turns the signal from the single cell into a digital value at high resolution. Power-on zero tracking takes the empty platform as zero each time the scale is switched on; small drifts that build up during the day are cleared with manual zeroing. Tare can be keyed in, taken automatically or taken with a key while the container is on the platform.

Power can come from the internal rechargeable battery or a 220 V supply. Auto power-off and power protection stop the battery running down when the scale is idle. Units can be switched between kilograms, pounds and litres; the RS 232 link is used to print tickets and labels and send weighing records to a computer. The platform has a double chassis and an electrostatic oven-baked finish; its overload-resistant design is intended to protect the cell if a load above capacity is put on by mistake.