Table 3-7: Status Output Signals - Teledyne t100 Operation Manual

Getting Started

Table 3-7: Status Output Signals

REAR PANEL STATUS
LABEL DEFINITION
1 SYSTEM OK
2 CONC VALID
3 HIGH RANGE
4 ZERO CAL
5
SPAN CAL
6 DIAG MODE
7&8
D
EMITTER BUS
+
DC POWER
Digital Ground
3.3.1.6. CONNECTING THE CONTROL INPUTS
42
ON if no faults are present.
OFF any time the HOLD OFF feature is active, such as during calibration or when
other faults exist possibly invalidating the current concentration measurement
(example: sample flow rate is outside of acceptable limits).
ON if concentration measurement is valid.
ON if unit is in high range of either the DUAL or Auto range modes.
ON whenever the instrument's ZERO point is being calibrated.
ON whenever the instrument's SPAN point is being calibrated.
ON whenever the instrument is in DIAGNOSTIC mode
The emitters of the transistors on pins 1-8 are bussed together.
+ 5 VDC, 300 mA source (combined rating with Control Output, if used).
The ground level from the analyzer's internal DC power supplies
If you wish to use the analyzer to remotely activate the zero and span calibration modes,
several digital control inputs are provided through a 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 (Figure 3-10, left). However, if
full isolation is required, an external 5 VDC power supply should be used (Figure 3-10,
right).
Teledyne API - T100 UV Fluorescence SO
CONDITION
SPARE
SPARE
Analyzer
2
06807F DCN7335