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PMA1000/PMA1000L | 1.00.00
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6.4 Gas connections and pin assignment diagram
P_IN
1
P_OUT
2
SM 2
X6
X7
X10
X2
IO 2
X10
X11
X6
X9
X20
X21
X22
X7
+ -
+
1 2
0/4…20mA
500
Ω
isolated
mA
High side switches (HSS)
Short-circuit proof
24V DC / 0,5A
1 2 3 4 5 6 7 8
- + - + - + -
HSS1 HSS2 HSS3 HSS4
IO 5
X10
X11
X6
X9
X50
X51
X52
X7
Gas
Electronics
CAN
CAN
24V
24V
SE2
SE3
SE1
RS1= Alarm
RS2= Cal. Mode
HSS1 = range 2
HSS2 = range 3
HSS3 = Lim 1
HSS4 = Lim 2
HSS1 = Sample/Test gas
HSS2 = Valve Test gas 1
HSS3 = Valve Test gas 2
HSS4 = Valve Test gas 3
3 1 2 6 4 5
RS1
RS2
2x 24V / 2A
RS1 = sample Pump On/O
ff
RS2 = Calibra
ti
on Error
Not used
Sample
Gas IN
Sample
Gas OUT
Measuring range
feedback signal
Operating parameters
Status signal
Pressure
compensa
ti
on
AutoCal Valves
Automated Calibra
ti
on
(AutoCal, PMA1000 only)
Pump Control
AutoCal Status
High side switches (HSS)
Short-circuit proof
24V DC / 0,5A
1 2 3 4 5 6 7 8
+ - + - + - + -
HSS1 HSS2 HSS3 HSS4
3 1 2 6 4 5
RS1
RS2
2x 24V / 2A
Analog Output
P_IN sensor pressure
∆
_P used for
fl
ow signal
Power 100-240V, 50-60Hz
RJ45 Modbus TCP/IP
USB
Not used
X1
X2
X3
X4
Fig. 11: Gas connections and pin assignment diagram
Note
The HSS-outputs for the AutoCal valves are only available for the
PMA1000 analyzer.
The pin assignment diagram and the status signal RS1 use the following definitions:
Electronics:
HSS1…4
High-Side-outputs 1…4 (voltage level 0/24V, 500mA to connect
magnetic valves or coupling relays directly)
RS
Relays (potential-free relay output, max. 24V/2A)
P_IN
Pressure sensor input (measures the pressure compensation during
operation)
P_OUT
Pressure sensor input (measures the pressure compensation during
operation)
∆P
Pressure difference between P_IN and P_OUT