Hardy Process Solutions HI 1769-WS, Руководство по эксплуатации и установке

Страница: 11 / 82

Chapter 1 - Overview
1-3
can be used for a wide variety of process weighing
applications such as batching, blending, filling/dis-
pensing, check weighing, force measurement, level by
weight and weight rate monitoring. The analog to dig-
ital converter in the weigh module controller updates
one hundred (100) times per second and is capable of
8,388,608 counts of display resolution. This gives the
instrument the ability to tolerate large “dead” loads,
over sizing of load cells/sensors and still have suffi-
cient resolution to provide accurate weight measure-
ment and control. The module calibration is electronic
via C2 electronic calibration. C2 or Hard (Traditional
calibration with weights) is also available for those
not using Hardy C2 certified load sensors.
WAVERSAVER
®
Typically, mechanical noise (from machinery in a
plant environment) is present in forces larger than the
weight forces trying to be detected by the module.
The HI 1769-WS & HI 1769-2WS is fitted with
WAVERSAVER
®
technology which eliminates the
effects of vibratory forces present in all industrial
weight control and measurement applications. By
eliminating the factor of vibratory forces the module
is capable of identifying the actual weight data.
WAVERSAVER
®
can be configured to ignore noise
with frequencies as low as 0.25 Hz. One of five higher
additional cut off frequencies may be selected to pro-
vide a faster instrument response time. The default
factory configuration is 1.00 Hz vibration frequency
immunity.
C2
®
Calibration
C2 Second Generation Calibration enables a scale
system to be calibrated electronically without using
certified test weights which equals the systems load
capacity. A C2 weighing system consists of up to
eight (8) C2 load sensors, a junction box, interconnect
cable and an instrument with C2 capabilities as long
as power requirements don’t exceed specification. All
Hardy C2 certified load sensors contain digital infor-
mation detailing its unique performance characteris-
tics. The modules read the performance
characteristics of each individual load sensor and