Thermo Scientific 5030i SHARP, Инструкция по эксплуатации

Страница: 278 / 403

System Description
Electronics
8-6 Model 5030 i SHARP Instruction Manual Thermo Fisher Scientific
Signals are gathered from the low-level processors once per second, and
then processed by the high-level processor to produce the final
measurement values. The one-second accumulated counts are accumulated
and reported for the user-specified averaging time. If this averaging time is
greater than ten seconds, the measurement is still reported every 10
seconds. The one-second average of the other analog inputs are reported
directly (no additional signal conditioning is performed by the high-level
processor).
The front panel display, serial and Ethernet data ports, and analog outputs
are the means of communicating the results of the above calculations. The
front panel display presents the concentrations simultaneously. The display
is updated every 1-10 seconds, depending on the averaging time.
The analog output ranges are user selectable via firmware. The analog
outputs are defaulted based on the measurement range. Negative
concentrations can be represented as long as they are within -5% of full-
scale. The zero and span values may be set by the user to any desired value.
All electronics operate from a universal switching supply, which is capable
of auto-sensing the input voltage and working over the all specified ranges.
External pumps and heaters all operate on 110 VAC. An optional
transformer is required if operating on the 210-250 range.
An on/off switch controls all power to the analyzer and is accessible on the
front panel.
The motherboard contains the main processor, power supplies, and a sub-
processor, and serves as the communication hub for the instrument. The
motherboard receives operator inputs from the front panel function keys
and/or over I/O connections on the rear panel. The motherboard sends
commands to the other boards to control the functions of the instrument
and to collect measurement and diagnostic information. The motherboard
outputs instrument status and measurement data to the graphics display
and to the rear-panel I/O. The motherboard also contains I/O circuitry and
the associated connector to monitor external digital status lines and to
output analog voltages that represent the measurement data. Connectors
located on the motherboard include:
Monitoring Signals
Output
Communication
Electronics
Motherboard