WTC 200 Precision Balance

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Product code: WL-210-0004

CE - Information about conformity of a product with European Union regulations that concern the product. Marking the product with CE sign makes the manufacturer responsible for the product to meet requirements of general safety regulations determined by CE marking directives.

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Functions

Plus/Minus Control

Control of sample's mass carried out with reference to specified MIN and MAX thresholds. The weight is considered to be correct if it is comprised within threshold values. A graphic visualisation of weighing result is displayed in a form of a bar graph.

Percent Weighing

Percent Weighing function is used for comparision of measured products with mass standard. Mass of a mass standard may be a numeric value taken from a database or it may be determined through a measurement process. Each measured product is compared to mass standard, mass of which is presumed as a model 100% ideal mass. For products weighing less than the mass standard, obtained results are lower than 100%, for products weighing more, the obtained results are greatly exceeded.

Parts counting

Function using mass measurement for determination of measured items quantity. Mass of a single item is required for this process. It may be either estimated through weighment or taken from a database. For items counting the following algorithm is used: all items mass / single item mass = quantity. Function operation is supperted by a mechanism of Automatic Correction of Accuracy. This allows to update single item mass in course of the process. To a certain extend Automatic Correction of Accuracy eliminates error which may be a result of different mass values of seemingly alike single elements. For industry solutions items counting may be simultaneously carried out with checkweighing and dosing thus industry solutions feature audio signalling base informing that specified number of items has been weighed. It is possible to apply weighing systems using few platfroms of different MAX capacities and different accuracies.

Peak hold

Function registering the greatest temporary indication occurring in course of the weighing process. It is most often used in medical scales in order to hold the measurement indication.

GLP Procedures

Diagnostic function allowing to objectively document performed measurements. GLP procedures may be either presented in a short report form or extended one.

ALIBI Memory

"ALIBI" memory enables saving and storing up to 100000 measurements. Measurements are saved automatically upon each pressing of the key. There is no need for any additional operations or changing settings.
The following data related with the measurements is saved: measurement date; measurement time; result (mass); tare value; operator carrying out the measurement (logged in); product name.
The software saves the measurement in a so called loop, i.e. when the measurement no. 100001 is saved, the measurement 1 gets automatically deleted from the memory.
Measurements saved to balance memory cannot be deleted.
You can preview and print out the data saved to the ALIBI database.

WTC precision balances enable fast and accurate determination of mass in laboratory. The devices are equipped with an internal battery which allows their operation in places where there is no access to the mains. The balance features a stainless steel weighing pan, and a backlit LCD guaranteeing clear weighing result presentation. Communication interfaces: RS232, USB type A, USB type B. The interfaces enable cooperation with peripheral devices, e.g. printer, computer, USB flash drive. The WTC balances feature real-time clock and ALIBI memory.

Maximum capacity [Max]	200 g
Readability [d]	0.001 g
Tare range	-200 g
Repeatability	0.002 g
Linearity	±0.004 g
Stabilization time	2 s
Adjustment	external
Display	LCD (backlit)
Protection class	IP 43
Communication interface	RS232, USB-A, USB-B, Wi-Fi^® (option)
Power supply	100 ÷ 240 V AC 50 / 60 Hz and battery
Power consumption max.	6 W
Operation time on batteries	15 h (average time)
Operating temperature	+15 ÷ +30 °C
Weighing pan dimensions	ø100 mm
Packaging dimensions	330×230×140 mm
Net weight	1.3 kg
Gross weight	2 kg

Repeatability is expressed as a standard deviation from 10 cycles of mass standard weighing.
Stabilization time depends on the ambient conditions and the dynamics of weighing pan loading; specified for FAST profile.