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Teledyne API M100E Analyzer Operation Manual Remote Operation and Advanced Features
159
Table 7-8: Status Output Pin Assignments
CONNECTOR
PIN
STATUS CONDITION (ON=CONDUCTING)
1
System Ok ON if no faults are present.
2
Conc Valid ON if concentration measurement is valid, OFF when invalid.
3
High Range ON if unit is in high range of any AUTO range mode.
4
Zero Cal ON whenever the instrument is in ZERO calibration mode.
5
Span Cal ON whenever the instrument is in SPAN calibration mode.
6
Diag Mode ON whenever the instrument is in DIAGNOSTIC mode.
7-8
Unused
D
Emitter Bus
The emitters of the transistors on pins 1-8 are bussed together. For
most applications, this pin should be connected to the circuit ground of
the receiving device.
+
Dc Power
+ 5 VDC source, 30 mA maximum (combined rating with Control
Inputs)
Digital Ground The ground from the analyzer’s internal, 5/±15 VDC power supply.
7.3.1.2. CONTROL INPUTS
Control inputs allow the user to remotely initiate ZERO and SPAN calibration modes are provided through a
10-pin connector labeled CONTROL IN on the analyzer’s rear panel. These are opto-isolated, digital inputs that
are activated when a 5 VDC signal from the “U” pin is connected to the respective input pin.
Table 7-9: 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.
B External Span Cal
Span calibration mode is activated. The mode field of the display will
read 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.
+ Internal +5v Supply
Internal source of +5V which can be used to activate inputs when
connected to pin U.
04515F DCN6048