![](http://datasheet.mmic.net.cn/300000/K3NR-NB1C_datasheet_16194549/K3NR-NB1C_7.png)
Frequency/Rate Meter
K3NR
K-135
P
i
Output Units
18
19
20
21
22
23
24
25
26
18
19
20
21
22
23
24
25
26
18
19
20
21
22
23
24
25
26
18
19
20
21
22
23
24
25
26
K31-C1: Relay (3 Outputs)
Outputs (5 A max. at 250 VAC)
H
PASS
L
K31-C2: Relay (5 Outputs)
Outputs (5 A max. at 250 VAC)
K31-C5: Relay (5 Outputs)
Outputs (5 A max. at 250 VAC)
HH
PASS
L
LL
H
HH
PASS
L
H
LL
K31-T1: Transistor (NPN Open Collector)
Outputs (50 mA max. at 24 VDC)
HH
H
PASS
L
LL
COM
+
18
19
20
21
22
23
24
25
26
18
19
20
21
22
23
24
25
26
10
0
10
1
10
2
10
3
10
4
4 8
10
4
1 2 4 8 1 2 4 8 1 2 4 8 1 2 4 8
1 2
20
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
p
(
)
HH
H
PASS
L
LL
COM
Outputs (50 mA max. at 24 VDC)
HH
H
PASS
L
LL
COM
COMMON
D
D
R
C
R
M
M
H
R
P
H
H
P
L
L
C
K31-L1, L2, L3,-L4, -L5, -L6, -L7, -L8, -L9,
-L10: Linear
(Terminals 21 to 26 are provided only on K31-L4,
-L5, -L6, -L9, -L10.)
L1, L4: 4 to 20 mA
L2, L5: 1 to 5 V
L3, L6: 1 mV/10 digit
L7, L9: 0 to 5 VDC
L8, L10: 0 to 10 VDC
Note:
With K31-L4/-L5/-L6/-L9/-L10 models, terminals 19
and 26 are connected internally.
S
R
S
14
1
2
3
4
5
6
7
8
9 10 11 12 13
15 16 17 18 19 20 21 22 23 24 25
K31-FLK1: RS-232C
+
19
18
20
21
22
23
24
25
26
R
S
R
S
S
RS-422
6
2
3
4
5
7
8 9
6
1
2
3
4
5
7
8 9
1
K31-FLK2, -FLK5: RS-485
(Terminals 21 to 26 are provided only on K31-FLK5.)
HH
H
PASS
L
LL
COM
RS-485
Terminator
ON
OFF
Outputs (50 mA max. at 24 VDC)
K31-FLK3, -FLK6: RS-422
(The right connector is provided only on K31-FLK6)
ON
OFF
K31-FLK4: RS-232C + Transistor (NPN Open Collector)
RS-232C
L
H
L
C
H
P
Terminator
D-sub 37P Connectors for BCD output (attachment)
Plug: XM2A-3701
Hood: XM2S-3711
D-sub 25P connectors for RS-232C output (K31-FLK1) (order
separately)
Plug: XM2A-2501
Hood: XM2S-2511
D-sub 9P connectors for RS-422 output (K31-FLK3 and K31-
FLK6) (order separately)
Plug: XM2A-0901
Hood: XM2S-0911
D-sub 9P connectors for RS-232C output (K31-FLK4) (order
separately)
Plug: XM2D-0901
Hood: XM2D-0911
Output NPN Tr.
(50 mA max. at 24 VDC)
Output NPN Tr.
(50 mA max. at 24 VDC)
L
H
P
H
9
4
3
2
1
8
7 6
5
L
R
S
S
C
9
4
3
2
1
8
7 6
5