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User’s Manual DRF Series
INPUT SIGNAL for POTENTIOMETER
RANGES
0/100 %
0/50 %
0/25 %
0/12.5%
(minimum 8%)
Potentiometer value min 100Ohms
max 1MOhm
3 Wire System, 1 Vdc Excitation
INPUT SIGNAL in RESISTANCE
RANGES
0/10 KOhms
0/5 KOhms
0/3 KOhms
0/1.5 KOhms
(minimum 750 Ohms)
2 Wire System, 0.2 mA Excitation
OUTPUT SIGNAL in VDC
RANGES
0/10 Vdc
0/1 Vdc
Max Output
11Vdc approx.
Min Output
-1Vdc approx.
Min Load R
≥
1KOhm
OUTPUT SIGNAL in mA
RANGES
0/20mA (4/20mA)
Max Output
22mA approx.
Min Output
-1.5mA approx.
Max Load R
≤
400 Ohms
POWER SUPPLY
DC Power
24Vdc ±10%
AC Power
230Vac ±10% 50/60 Hz
115Vac ±10% 50/60 Hz
Consumption
<3.8VA
MECHANICAL DIMENSIONS
DC Units
22.5 x 93 x 110 mm
AC Units
37.0 x 93 x 110 mm
Weight DC
120 gr.
Weight AC
200 gr.
TECHNICAL DATA : Models DRF-POT and DRF-RES
Standard DIN rail mounting, as specified
on DIN46277 and DIN EN 50022
37.5 x 7.5 mm
(1.38 x 0.3 ´´)
GALVANIC ISOLATION LEVELS
DC Units
Input - Output
3.5 KV
(60 seconds)
Power-Input
3.5 KV
(60 seconds)
Power- Output 1 KV
(60 seconds)
AC Units
Input - Output
3.5 KV
(60 seconds)
Power- Input
3.5 KV
(60 seconds)
Power - Output 3.5 KV
(60 seconds)
All isolation levels are tested during a time
of 60 seconds, with current leaks <1mA
Note : Indicated isolation levels are also
sometimes named as STRENGTHENED
ISOLATION levels, for systems with
Polution Level 2
GENERAL SPECIFICATIONS
Accuracy
<0.2% F.S.
Optimized for
12 bit systems
Linearity
<0.1% F.S.
Thermal Drift
<250 ppm/ºC Tipical
Warm-Up Time 5 minutes
Response Time <70mS
(90% of signal)
Plug-In Screw Terminals
Maximum Wire Section 2.5 mm
2
Protection
IP-30
Temp.Operation from 0 to 60ºC
Temp.Storage
from -20 to +70ºC
MATERIALS
Box and Cover in Poliamide PA6 UL94
V-2 blue color
Terminals in Poliamide UL94 V-0
