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Getting Started
3.4.6. CONNECTING THE CONTROL INPUTS
CONTROL IN
A
B
C
D
Local Power Connections
INPUT #
STATUS DEFINITION
A
REMOTE ZERO CAL
B
REMOTE SPAN CAL
C
REMOTE LO SPAN CAL
D
REMOTE RANGE HI
E
SPARE
F
SPARE
Digital Ground
U
External Power input
+
5 VDC output
38
Control Inputs are used to remotely activate the zero and span calibration modes. Locate
the 10-pin connector labeled CONTROL IN on the analyzer's rear panel.
There are two methods for energizing the control inputs. The internal +5V available
from the pin labeled "+" is the most convenient method. However, if full isolation is
required, an external 5 VDC power supply should be used.
+
E
F
U
Figure 3-10:
Table 3-7: Control Input Signals
The analyzer is placed in Zero Calibration mode. The mode field of
the display will read ZERO CAL R.
The analyzer is placed in Span Calibration mode. The mode field of
the display will read SPAN CAL R.
The analyzer is placed in low span calibration mode as part of
performing a low span (midpoint) calibration. The mode field of the
display will read LO CAL R.
The analyzer is placed into high range when configured for dual
ranges..
The ground level from the analyzer's internal DC power supplies
(same as chassis ground).
Input pin for +5 VDC required to activate pins A - F.
Internally generated 5V DC power. To activate inputs A - F, place a
jumper between this pin and the "U" pin. The maximum amperage
through this port is 300 mA (combined with the analog output supply,
if used).
Teledyne API - Model T200H/T200M Operation Manual
A
B
C
-
External Power Connections
Control Input Connector
ON CONDITION
CONTROL IN
+
D
E
F
U
5 VDC Power
Supply
+
07270D DCN7141
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