Teledyne T100, Инструкция по эксплуатации, Страница: 91 / 404

Teledyne ML - T100 UV Fluorescence SO2 Analyzer Operating Instructions
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4.6. SETUP
– RNGE: ANALOG OUTPUT REPORTING RANGE
CONFIGURATION
4.6.1. AVAILABLE ANALOG OUTPUT SIGNALS
The analyzer has three active analog output signals, accessible through a connector on
the rear panel.
Test output
ANALOG OUT
A1 A2 A3 A4
+ - + - + - + -
SO
2
concentration
outputs
HIGH range when
DUAL mode is selected
(not used in
standard
configuration)
LOW range when
DUAL mode is selected
Figure 4-9: SETUP
– Analog Output Connector
All three outputs can be configured either at the factory or by the user for full scale
outputs of 0.1 VDC, 1VDC, 5VDC or 10VDC. Additionally
A1 and A2 may be
equipped with optional 0-20 mA DC current loop drivers and configured for any current
output within that range (e.g. 0-20, 2-20, 4-20, etc.). The user may also adjust the signal
level and scaling of the actual output voltage or current to match the input requirements
of the recorder or data logger (Refer to Section 6.9.4.3 and 6.9.4.5).
In its basic configuration, the A1 and A2 channels of the T100 output a signal that is
proportional to the SO
2
concentration of the sample gas. Several operating modes are
available which allow:

Single range mode ( SNGL Mode, refer to Section 6.7.4): Both outputs are slaved together
and will represent the same concentration span (e.g. 0-50 ppm); however their electronic
signal levels may be configured for different ranges (e.g. 0-10 VDC vs. 0-.1 VDC – Refer to
Section 6.9.4).

Dual range mode( DUAL mode, refer to Section 6.7.5): The two outputs can to configured
for separate and independent units of measure and measurement spans as well as separate
electronic signal levels.

Auto range mode ( AUTO mode, refer to Section 6.7.6) gives the analyzer the ability to
automatically switch the A1 and A2 analog outputs between two ranges (low and high)
dynamically as the concentration value fluctuates.
EXAMPLE:
A1
OUTPUT: Output Signal = 0-5 VDC representing 0-1000 ppm concentration values
A2 OUTPUT: Output Signal = 0
– 10 VDC representing 0-500 ppm concentration values.
A3 OUTPUT: Test channel; e.g., PMT signal = 0-5V
Output A4 is not available on the T100 Analyzer in standard configuration.