Figure 3-4: status output connector – Teledyne 6200E - Sulfides Analyzer User Manual
Page 25
Model 6200E Instruction Manual
Getting Started
M6200E Rev: A1
25
C
o
nn
ect
t
o In
ternal
G
rou
nd of
M
o
n
itor
in
g
STATUS
1 2 3 4 5 6 7 8 D
+
SY
STE
M
O
K
H
IG
H RA
NG
E
CONC
V
AL
ID
ZE
RO C
A
L
SPA
N CA
L
DI
AGNOS
T
IC
MODE
Figure 3-4: Status Output Connector
NOTE
Most PLC’s have internal provisions for limiting the current the input will draw. When
connecting to a unit that does not have this feature, external resistors must be used to
limit the current through the individual transistor outputs to ≤50mA (120 Ω for 5V
supply).
Table 3-2: Status Output Signals
REAR PANEL
LABEL
STATUS
DEFINITION
CONDITION
1
SYSTEM OK
ON if no faults are present.
2
CONC VALID
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.
3
HIGH RANGE ON if unit is in high range of the AUTO Range Mode
4
ZERO CAL
ON whenever the instrument’s ZERO point is being calibrated.
5
SPAN CAL
ON whenever the instrument’s SPAN point is being calibrated.
6
DIAG MODE
ON whenever the instrument is in DIAGNOSTIC mode
7 - 8
SPARE
D
EMITTER BUS The emitters of the transistors on pins 1-8 are bussed together.
SPARE
+
DC POWER
+ 5 VDC, 300 mA source (combined rating with Control Output, if used).
Digital
Ground
The ground level from the analyzer’s internal DC power supplies