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Faq (Frequently Asked Questions)

What is IP rating?

The IP Code (or International Protection Rating, sometimes also interpreted as Ingress Protection Rating) consists of the letters IP followed by two digits and an optional letter. As defined in international standard IEC 60529, it classifies the degrees of protection provided against the intrusion of solid objects (including body parts like hands and fingers), dust, accidental contact, and water in electrical enclosures


What are the differences between LED, LCD and VFD displays?

Light Emitting Diode (LED) and Vacuum Fluorescent Display (VFD) display types are recommended for indoor applications, identifiable by digits that light up over a dark background. For most applications in sunlight we suggest a Liquid Crystal Display (LCD), which is identifiable by black digits over a gray (or backlit) background.


What type of display is best with DC power?

A Liquid Crystal Display (LCD) is best in this case. It will consume substantially less power and lengthen battery life.


What type of load cells would work best with washdown applications?

A hermetically sealed stainless steel load cell provides the best protection from both water ingress and corrosion.


What is the difference between hermetically sealed and welded seal load cell?

A load cell that is classified as hermetically sealed has both a welded seal and additional hermetic sealing in the cable entry area. Welded seal load cells are not protected in the cable entry area


How far does RS-232 travel?

Because of sensitivity to noise, RS232 is not recommended for applications requireing more than 50feet of travel.


What is an analog output and where is it used?

A continuous variable voltage (0-10V) or current (4-20ma) output that tracks the weight applied to the scale. Analog outputs are commonly used to communicate with a PLC


What is the major benefit of 20ma?

20ma current is less susceptible to noise and will travel greater distances than RS-232


What do EMI and FRI stand for?

These are two types of interference. Electro Magnetic Interference (EMI) comes from industrial type equipment with large coils or motors. Radio Frequency Interference (RFI) comes from transmitting devices such as radios and cell phones.


What is Class III application?

Handbook 44 separates weighing devices into five accuracy classes according to number and value of scale divisions--I, II, III, IIIL, and IIII with class I having the highest precision. Class III implies all commercial (Legal-for-Trade) weighing devices including jewelry scales, postal scales and weighbridge/ truck scale.


What type of thermal printing application will cause the print head to be replaced more often?

Direct Thermal printers will wear more quickly because there is nothing to separate the print head from the paper, causing more friction and wear on the head. Thermal transfer models have a ribbon between the print head and the paper to act as a buffer.


What is a dumb printer?

A device that prints exactly what is received with no ability to manipulate or format the data.