Sfere DGN175 U - Page 5

Features of the inputs
DGN
175 U
DGN
175 T
DGN
175 M
Types
of inputs
Measure range adjustable
from:
Permanent
overload
Intrinsic
error
Input
impedance


mA 
-22 to +22mA
±100mA
< ±0.05%
of the MR
Drop 0.9V
m ax.


mV (1)
-110 to +110mV
±1V
 1 M


V
-1.1 to +1.1 V
±50V


-11 to +11V


-165 to +165 V
±300V


-300 to +300V


Thermocouples (1)
Standard IEC 581
J
K
B
R
S
T
E
N
L
W or G
W3 or D
W5 or C
°C
-160/1200
-270/1370
200/1820
-50/1770
-50/1770
-270/410
-120/1000
0/1300
-150/910
1000/230
0
0/2480
0/2300
°F
-256/2192
-454/2498
392/3308
-58/3218
-58/3218
-454/770
-184/1832
-32/2372
-238/1670
1832 / 4172
32/4496
32/4172
-
(3)
<±0.1%
of the MR, or
30µV typical
(60µV max.)
 1 M


Pt100  sensor (1) (2) 
Standard IEC 751
(DIN 43760)
°C
-200/850
°F
-328/1562
-
<±0.1%
of the MR
Current
250µA


Ni 100 sensor (1) (2)
-60/260
-76/500
-


Differential measures from 2
sensors Pt100Ω
2-wire Standard IEC 751 (1)
-200/270
-328/518
-

Resistive sensors
Calibers 0-400  and 0-10 k   
<±0.1%
of the MR
Max. current
250µA

Potentiometer
from 100  to 10 k   
Max. voltage
100mV


Supply for 2 or
3-wire sensor
24 VDC ±15% with protection from short-circuits.
25 mA max.


Special linearisation up
to 20 points
On inputs: mV, V, mA. resistive sensors and potentiometer


Extraction of the square root
On mV, V or mA inputs
(1) Sensor break detection
mA input (if down scale ≥ 3,5 mA
Other inputs: a 12 µA pulsed current allows the detection
of line or sensor break.
(2) Wiring in 2, 3 or 4 wire possible.
The influence of the line resistance (0<Rl<25Ω) is
included in the announced intrinsic error (wiring in 3 or 4
wire).
(3) Efficiency of the CJC (-20°C to 60°C)
Internal CJC: ± 1°C ± 0.03°C/°C
MR: Measure Range
Dérive thermique < 150 ppm / °C
p4