Dimensions
(mm [in.])
●
MSU
MSU-232
No communication/RS-232C communication specification
●
MSU-485
RS-485 communication specification
5 [0.197]
30 [1.181]
32 [1.260]
8.3 [0.327]
27.6 [1.087]
2.65 [0.104]
Address setting (0 to F)
Note 1
Sensor connector
RS-485 communication connector
Power, switch output connector
Power, switch output,
(RS-232C communication) connector
Sensor connector
M2.6 × 6 (Depth 6 [0.236])
40 [1.575]
40 [1.575]
MSU
kPa
mL/min
L/min
1
2
3
4
SW
CH
C B
789
A
45
6
0123
DE
F
MSU
kPa
mL/min
L/min
1
2
3
4
SW
CH
OUT4 OUT3 OUT2
N.C
.
N.C
.
TXD RXD 0V
OUT1 0V +V
11 10 9 8 7 6 5 4 3 2 1
1ch 2ch 3ch 4ch
SENSOR 1
+V
IN
0V
ANLG
4
3
2
Enlarged diagram of wiring labels
* The label above shows the
MSU-232.
For the MSU (no
communications), 7 to 9 are
N.C.
* Only NPN type is UL
compliant.
Note 1: The diagram shows when the address is 0.
5 [0.197]
30 [1.181]
32 [1.260]
8.3 [0.327]
27.6 [1.087]
2.65 [0.104]
Address setting (0 to F)
Note 1
Sensor connector
RS-485 communication connector
Power, switch output connector
Power, switch output,
(RS-232C communication) connector
Sensor connector
M2.6 × 6 (Depth 6 [0.236])
40 [1.575]
40 [1.575]
MSU
kPa
mL/min
L/min
1
2
3
4
SW
CH
C B
789
A
45
6
0123
DE
F
MSU
kPa
mL/min
L/min
1
2
3
4
SW
CH
Enlarged diagram of wiring labels
1ch 2ch 3ch 4ch
RS485
1 2 3 4 5 6
+V 0V OUT1 OUT2 OUT3 OUT4
RS485
3
2
1
B(-)
A(+)
0V
RS485
1
+V
IN
0V
ANLG
4
3
2
SENSOR
* Only NPN type is UL
compliant.
10