DT4120 xx xx (PS)
20170324-V0
81
Limit outputs (optional)
Output type:
2 x SPST relays, Normally Off
Contact rating:
240 VAC / 30 VDC, 3 A
Refreshing time:
same as the display’s one
Hysteresis:
0
- ±30000 (adjustable)
Active analog output (optional)
Output type:
galvanic isolated DC current
Output ranges:
4-20 mA / 0-20 mA (scalable)
Characteristic: linear
Accuracy: 0.03%
@
Ta
=
23
˚
C ±2
˚
C,
(after 20 min warm up time)
Accuracy:
0.4% @ -20°C < Ta < +60
˚
C
Temperature-dependency: 75
ppm
/
˚
C
Burden:
max. 500 ohm
Overcurrent protection:
25 mA
Overvoltage protection:
75 V (normal polarity)
Reverse polarity: protected by 63 mA fuse
Isolation voltage:
0.5 kV
Passive analog output (optional)
Output type:
galvanic isolated DC current
Output ranges:
4-20 mA / 0-20 mA (scalable)
Characteristic: linear
Accuracy: 0.03%
@
Ta
=
23
˚
C ±2
˚
C,
(after 20 min warm up time)
0.4% @ -20°C < Ta < +60
˚
C
Temperature-dependency:: 75
ppm
/
˚
C
External power supply voltage for output: 4 V - 30 V
Overcurrent protection:
25 mA
Overvoltage protection:
75 V
Maximum loop resistance:
R
max
= (U - 4 V) / 0.02 A [ohm]
(U voltage of external power supply)
Minimum loop resistance:
U < 20 V not required
U > 20 V R
min
= (U - 20 V) / 0.02 A [ohm]
(U voltage of external power supply)
Isolation voltage:
0.5 kV
Summary of Contents for DT4120 PS Series
Page 1: ...DT4120 xx xx PS Temperature Resistance Potentiometer Meter Transmitter Operating Instructions...
Page 84: ...DT4120 xx xx PS 84 20170324 V0 10 2 Application example Analog output option...
Page 85: ...DT4120 xx xx PS 20170324 V0 85 RS232 communication interface option...
Page 86: ...DT4120 xx xx PS 86 20170324 V0 RS485 communication interface option...
Page 87: ...DT4120 xx xx PS 20170324 V0 87 RS485 bus topology...
Page 90: ...DT4120 xx xx PS 90 20170324 V0...
Page 91: ...DT4120 xx xx PS 20170324 V0 91...
Page 92: ......
