1 Introduction
The C520 is a precision digital indicator. The C530 is a precision digital weight transmitter. Both use a
sigma-delta analog-to-digital (A/D) converter to ensure extremely fast and accurate weight readings. This
advanced technology allows the C520 and C530 to be configured for up to 100,000 divisions with up to 100
A/D conversions per second. The units have extended sensitivity adjustment which can handle scales with
outputs 0.2-5.0mV/V for full range. The design is optimized to deliver precision performance on scale bases
delivering above 0.5mV/V at display resolutions of up to 10000 divisions in single range mode, or 5000 divisions
in dual range mode.
Throughout this document the two devices will be referred to as the C500 series.
The C520 digital weight indicator has a green six digit 14 segment LED display with additional indication of
weighing status. Each digit is 14mm high. The instrument has 8 setpoints with status display on the front
panel. The C530 digital weight transmitter has no display, but can be accessed by the C500 series viewer PC
software.
The C500 series can either operate from mains AC supply (86-260VAC 48-62Hz) or from stable DC supplies
(12-24VDC).
The setup and calibration are digital, with a non-volatile security store for all setup parameters. The built-in
clock can be used to date-stamp printouts. There is an NVRAM store to ensure day to day operating settings
(zero, tare, date/time, etc) are retained when power is removed.
The C520 and C530 have the following interfaces as standard:
Infrared communications port for easy configuration.
USB slave
USB host
Ethernet
RS232 and RS485 (C520 only)
Two optional accessory modules can be fitted to the indicator. These provide additional hardware interface
features such as:
AC power input
Additional serial ports for RS232 and RS485
Inputs and outputs
Analog outputs
1 C500-600-2.0.3
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