Hardy HI 1756-2WS - Manual (Page 11)

Chapter 1 - Overview
1-3
WAVERSAVER
®
During the measurement of small weight changes, the
affects of mechanical vibration and noise from the
operating environment can introduce substantial inter-
ference. WAVERSAVER factors out vibration, noise,
and other interference-related signals from the load
cell so the rate controller can better decipher 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 Traditional calibration uses certified test weights.
C2® Electronic Calibration allows a scale to be cali-
brated without the need for test weights. It can be ini-
tiated by pressing “THE BUTTON
®
” located in the
front of the module, or via ladder logic.
A C2 weighing system consists of up to eight C2 load
sensors, a junction box, interconnect cable, and an
instrument with C2 capabilities (e.g., the HI 1756).
Each Hardy Instruments C2-certified load sensor out-
puts digital information used for the calibration. The
modules reads the sensor outputs and detects the num-
ber of active sensors. It then calibrates the scale based
on the load sensor’s output plus a user-supplied refer-
ence point value (from 0 to any known weight on the
scale).
IT
®
I NTEGRATED T ECHNICIAN
™
is a system diagnostics
utility which, in conjunction with an HI 215IT series
IT junction box, continuously monitors the excitation
circuit (with up to 4 load sensors) for possible mal-
functions. IT reads individual load sensor voltages
and weights and isolates individual system compo-
nents for quick and easy troubleshooting.
Excitation Monitor Continuously monitors a system’s excitation current
to check for open or shorted load sensors or damaged
or broken excitation wire(s), including the wires