Справочник Пользователя для Teledyne Camera Accessories T100
Teledyne API - T100 UV Fluorescence SO2 Analyzer
Remote Operation of the Analyzer
177
Table 8-2: Control Input Pin Assignments
INPUT STATUS
CONDITION
WHEN
ENABLED
A External
Zero
Cal
Zero calibration mode is activated. The mode field of the display will read
ZERO CAL R.
ZERO CAL R.
B External
Span
Cal
Span calibration mode is activated. The mode field of the display will read
SPAN CAL R.
SPAN CAL R.
C
Unused
D
Unused
E
Unused
F
Unused
Digital Ground
Provided to ground an external device (e.g., recorder).
U
DC Power For Input
Pull Ups
Input for +5 VDC required to activate inputs A - F. This voltage can be taken
from an external source or from the “+” pin.
from an external source or from the “+” pin.
+
Internal +5v Supply
Internal source of +5V which can be used to activate inputs when connected
to pin U.
to pin U.
There are two methods to activate control inputs. The internal +5V available from the
“+” pin is the most convenient method (Figure 8-2). However, to ensure that these
inputs are truly isolated, a separate, external 5 VDC power supply should be used
(Figure 8-3).
“+” pin is the most convenient method (Figure 8-2). However, to ensure that these
inputs are truly isolated, a separate, external 5 VDC power supply should be used
(Figure 8-3).
CONTROL IN
A B C D E F U
+
SP
A
N
ZER
O
Figure 8-2: Control Inputs with Local 5 V Power Supply
06807C DCN6650