WLC and WTC Series - precision balances

Technical specifications

Maximum capacity: 200 g to 120 kg, depending on the series and model
Readability: 0.001 g to 2 g, depending on the selected configuration
Three product groups: compact WTC balances, WLC C/2 models with automatic internal adjustment and higher-capacity WLC balances
Internal rechargeable battery for weighing without continuous access to mains power
Functions include parts counting, percent weighing, totalizing and plus/minus control; selected models also support under-pan weighing, GLP procedures and ALIBI memory

Model comparison overview

WTC Precision Balances

Maximum capacity: 200 g to 3100 g
Readability: 0.001 g to 0.1 g
Compact models for laboratory and production weighing
GLP reporting procedures and ALIBI memory
Four capacity and readability configurations are available

WLC C/2 Precision Balances

Maximum capacity: 0.6 kg to 6 kg
Readability: 0.01 g to 0.1 g
Automatic internal adjustment
Available with 128 × 128 mm or 195 × 195 mm weighing pans
Selected models are available in standard and IO configurations

WLC Precision Balances

Maximum capacity: 1 kg to 120 kg
Readability: 0.01 g to 2 g
Broad choice of single-range and dual-range models
Different platform sizes for compact loads and larger objects
Under-pan weighing is supported with a dedicated hook

The WLC and WTC series covers a wide range of precision weighing requirements, from compact laboratory measurements to larger loads encountered in production and warehouse environments. The family combines multiple capacity, readability and weighing-pan configurations, allowing the balance to be selected according to the required measuring range and sample size.

Energy-efficient electronics and an internal rechargeable battery enable operation away from a permanent power connection. The balances are therefore suitable for fixed workstations as well as locations where mains access is limited. Their stainless steel weighing pans and backlit LCD displays support routine operation, straightforward cleaning and clear result reading.

Key Features and Benefits

Wide capacity and readability range

The product family includes compact models for small loads as well as higher-capacity balances for larger objects. WTC models cover capacities from 200 g to 3100 g with readability from 0.001 g to 0.1 g. WLC C/2 models provide capacities from 0.6 kg to 6 kg, while the broader WLC range extends from 1 kg to 120 kg with readability from 0.01 g to 2 g.

This range allows the user to select a model according to both the required resolution and the physical size or mass of the weighed material. Selected WLC models offer dual weighing ranges, providing different readability values within a single balance configuration.

Battery-powered mobile operation

The internal rechargeable battery allows the balances to operate without continuous connection to the mains. Together with energy-efficient electronics and the LCD display, this supports weighing at mobile workstations, in warehouses, production areas and other locations where a fixed electrical connection may not be readily available.

The display indicates the battery status, helping the operator monitor the available operating time during mobile use.

Stainless steel weighing pan and LCD display

The weighing pans are made of stainless steel, providing a corrosion-resistant weighing surface that is suitable for contact with moist objects and easier to clean after routine operation.

The backlit LCD display presents weighing results clearly and remains readable from different viewing angles. Its energy-efficient design also contributes to extended battery-powered operation.

Routine weighing and control functions

The balances provide functions for common laboratory and production tasks. Parts counting determines the number of items from their total mass and a known single-item mass. The Automatic Correction of Accuracy mechanism can update the average item mass during counting.

Percent weighing compares the measured sample with a reference mass defined as 100%, while totalizing adds successive weighing results. Plus/minus control evaluates the measured mass against predefined minimum and maximum thresholds and presents the result graphically.

Peak hold records the highest temporary indication occurring during a weighing process. Available functions depend on the selected model and configuration.

Data storage and documentation

WTC balances support GLP procedures for documenting completed measurements in short or extended reports. Their ALIBI memory stores up to 100 000 weighing records automatically.

Stored information includes the measurement date and time, weighing result, tare value, logged-in operator and product name. Records can be previewed and printed, while measurements stored in the ALIBI database cannot be manually deleted.

Selected WLC configurations also include ALIBI memory for secure storage of weighing records and a real-time clock that maintains accurate time independently of the external power supply.

Communication interfaces

Selected WLC configurations provide two RS232 interfaces together with USB-A and USB-B ports. These interfaces enable connection of compatible peripheral equipment such as a printer, computer, USB flash drive or additional display.

Selected balances can also cooperate with the THBR 2.0 system for monitoring ambient conditions.

Under-pan weighing

WLC balances support under-pan weighing with a dedicated hook. This configuration allows the load to be suspended below the balance and is suitable for objects with non-standard shapes or dimensions, as well as materials that generate a magnetic field.

Model selection guide

For small samples requiring the finest readability: consider the WTC 200, which combines a maximum capacity of 200 g with a readability of 0.001 g.
For compact routine laboratory or production weighing: select a WTC model according to the required capacity between 200 g and 3100 g. WTC balances also provide GLP procedures and ALIBI data storage.
For capacities up to 6 kg with automatic internal adjustment: consider the WLC C/2 range. Models are available with readability of 0.01 g or 0.1 g.
For larger loads or a larger weighing surface: consider the standard WLC range, which includes capacities up to 120 kg and different platform sizes.
For suspended or unusually shaped loads: select a compatible WLC model and use the dedicated under-pan weighing hook.
For mobile weighing away from mains power: all three product groups provide an internal rechargeable battery; the final model can therefore be selected primarily according to capacity, readability and pan size.

Applications

Routine mass determination in laboratories
Weighing in production areas and industrial facilities
Warehouse weighing and parts counting
Mobile weighing where access to mains power is limited
Percent weighing and comparison with a reference mass
Totalizing the masses of multiple components
Plus/minus control against predefined mass thresholds
Under-pan weighing of non-standard or magnetic loads with compatible WLC models
Measurement documentation using GLP procedures and ALIBI memory with WTC balances

Optional technical data

WTC weighing pans: Ø 100 mm or 128 × 128 mm, depending on the model
WLC C/2 weighing pans: 128 × 128 mm or 195 × 195 mm
WLC weighing pans: multiple sizes are available, including 195 × 195 mm and 300 × 300 mm platforms
Display: backlit LCD
Weighing-pan material: stainless steel
Selected WLC communication interfaces: 2× RS232, USB-A and USB-B
Additional features: real-time clock and cooperation with the THBR 2.0 ambient conditions monitoring system on supported configurations