Honeywell SC1000 Manual Do Utilizador
SC Series Instruction Manual page 97
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12
Chapter 12
High-Level Input Channel
12.1 Features
The High-Level Input channel provides a DC supply voltage to and accepts volt-
age or current signals from amplified transducers such as pressure transducers,
load cells and DC-DC LVDTs. These signals are digitized, converted into engi-
neering units, and placed into the track, peak and valley data values of the chan-
nel. Setup and calibration of the channel is made manually through the SETUP
menu mode. Signature Calibration is not available with amplified transducers.
age or current signals from amplified transducers such as pressure transducers,
load cells and DC-DC LVDTs. These signals are digitized, converted into engi-
neering units, and placed into the track, peak and valley data values of the chan-
nel. Setup and calibration of the channel is made manually through the SETUP
menu mode. Signature Calibration is not available with amplified transducers.
The analog-to-digital converter input circuit features adjustable digital, low-pass
filtering, 12- to 18-bit resolution (depending on the filter setting) and has several
different input ranges. These many ranges allow ±50,000 count resolution (at the
slowest filter setting) across a wide variety of input ranges.
filtering, 12- to 18-bit resolution (depending on the filter setting) and has several
different input ranges. These many ranges allow ±50,000 count resolution (at the
slowest filter setting) across a wide variety of input ranges.
A combination of SETUP menu items and hardware jumpers are used to config-
ure the excitation supply output voltage (+28 VDC, ±15 VDC, +15 VDC or +12
VDC), the input type (voltage or current) and input reference (differential or single
ended).
ure the excitation supply output voltage (+28 VDC, ±15 VDC, +15 VDC or +12
VDC), the input type (voltage or current) and input reference (differential or single
ended).
Two methods of calibrating the High-Level Input channel to the transducer are
available: known-load calibration and shunt calibration. The benefits of each are
discussed in “CALIBRATION TYPE Menu Item” on page 113.
available: known-load calibration and shunt calibration. The benefits of each are
discussed in “CALIBRATION TYPE Menu Item” on page 113.
Two rear panel control inputs can be field-configured for such functions as remote
tare, disabling peak/valley detection and clearing the peak/valley values. A volt-
age or current digital-to-analog output is also provided.
tare, disabling peak/valley detection and clearing the peak/valley values. A volt-
age or current digital-to-analog output is also provided.