i
EP Monitor Specifications
Internal Circuit and Wiring Specifications
Tr
4
Tr
1
Tr
3
Tr
2
External connection
example
Connect to each EP sensor, and set
Internal circuit
(Brown) SW4
(Black) 0V
0V
RXD
TXD
RTS
CTS
(Yellow) SW3
(Green) SW2
(White) SW1
(Red)
+
V
Color of lead wire
Load
Load
Z
D2
Z
D3
Z
D1
D
24V
DC
±
10
%
+
−
50mA MAX
50mA MAX
50mA MAX
50mA MAX
Load
Z
D4
Load
EP Monitor
(Yellow/red)
+
24V
(Gray/red) ALM
(Yellow/black) 0V
(White/red) SA
EP Sensor
1ch
SER
EP Sensor
2ch
SER
SER
EP Sensor
3ch
EP Sensor
4ch
Power and switch
output cable
Communication
cable
Note: Power supply, switch, and
communication cable
DTY-EPP-CC-
□
L
is available.
SER
Main circuit
Main circuit
Main circuit
Main circuit
(Yellow/red)
+
24V
(Gray/red) ALM
(Yellow/black) 0V
(White/red) SA
(Yellow/red)
+
24V
(Gray/red) ALM
(Yellow/black) 0V
(White/red) SA
(Yellow/red)
+
24V
(Gray/red) ALM
(Yellow/black) 0V
(White/red) SA
Main circuit
Note
Note: When the cable is extended, be aware that voltage will drop due to resistance in the cable.
Key to codes
D:
Reverse current protection diode for power supply
Z
D1
〜
Z
D4
:
Zener diode for surge voltage absorption
Tr
1
〜
Tr
4
:
NPN output transistor
Model
Item
Voltage
Current
Sensor input
Switch output
Electric potential display
Switch output check display
Input channel check display
Setting key switch
Communication I/F
Operating temperature range
Operating humidity range
Storage temperature range
Case material
Outer dimensions
Mass
Accessories
Number of inputs
Voltage range
Maximum applied voltage
Number of outputs
Method
Applied voltage
Current
Voltage drop
DTY-EPU
24VDC
±
10%
100mA MAX
Note 1
4 channels
1
〜
5VDC
5.3V
4
NPN open collector
30VDC MAX
50mA MAX
0.3V MAX/At 5mA
7-segment LED 4 digits, Unit: kV (with decimal point)
Note 2
Red LED 4 pcs.
Green LED 4 pcs.
Pushbutton type, 3 keys (UP, DOWN, MODE)
Conformity with RS232C
–10
〜
50°C [14
〜
122°F]
35
〜
80%RH
–20
〜
80°C [–4
〜
176°F]
PBT
40(W)mm
×
40(H)mm
×
32(D)mm
Approximately 45g [1.59oz.]
Mini clamp wire mount plug 4 pcs.
Notes: 1. At EP Sensor in unconnected state
2. When in the ion balance monitor mode, the unit is V (no decimal point).
Summary of Contents for DTY-EPS Series
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