Via monte Nero, 40/B – 21049 TRADATE (VA) ITALY
Phone: +39 (0)331841070 Fax:+39 (0)331841950 - e-mail:
DAT 4631 B
DAT 4631 B
Isolated Doubler / Converter
for RTD and resistance
configurable by Dip-Switch or PC
FEATURES
- Configurable input for RTD and resistance
- Double output configurable in current or voltage
- Configurable by dip-switch or PC
- High accuracy
- On-field reconfigurable
- Galvanic isolation among the ways
- EMC compliant – CE mark
- Suitable for DIN rail mounting in compliance
with EN-50022 and EN-50035
GENERAL DESCRIPTION
The isolated doubler/converter DAT 4631 B is able to measure and linearise the standard RTDs and resistances with 2 or 3 wires cable compensation .
In function of programming, the measured values are converted in a current or voltage signal. The device guarantees high accuracy and performances
stability both versus time and temperature.
The programming is made by the dip-switch located in the window on the side of the enclosure. By means of dip-switches it is possible to select the input
type and range and the output type without recalibrate the device.
Moreover, by Personal Computer the user can program all of the device's parameters for his own necessity; the configuration by PC allows to program
the two outputs with two independent settings. For all the sensors it is possible to set the cable compensation with 2 or 3 wires.
Moreover it is available the option of alarm for signal interruption (burn-out) that allows to set the output value as high or low out of scale .
The 1500 Vac galvanic isolation on all ways (input, outputs and power supply) eliminates the effects of all ground loops eventually existing and allows the
use of the converter in heavy environmental conditions found in industrial applications.
The DAT 4631 B is in compliance with the Directive 2004/108/EC on the Electromagnetic Compatibility.
It is housed in a plastic enclosure of 12.5 mm thickness suitable for DIN rail mounting in compliance with EN-50022 and EN-50035 standards.
USER INSTRUCTIONS
The converter must be powered by a direct voltage applied to the terminals Q and R.
The analog channel measures the value from the sensor connected to the terminals the I, L and G and transmits the output measures on the terminals N
and M (OUT A) and the terminals P and O (OUT B).
The input and output connections must be made as shown in the section "Connections".
It is possible to configure the converter on field by dip-switch or Personal Computer as shown in the section “ Programming ". The configuration by dip-
switches can be made also if the device is powered (note: after the configuration the device takes some seconds to provide the right output measure ).
TECHNICAL SPECIFICATIONS (Typical at 25 °C and in nominal conditions)
Sensor excitation current
RTD,Res
500 uA
Line resistance influence
(1)
RTD 3 wires 0.05%/
Ω
(50
Ω
max balanced)
Linearity
(1)
RTD
± 0.1 % f.s.
Thermal drift
(1)
Full scale
± 0.01% / °C
Input type
Min
Max
Min.Span
TEMPERATURE AND HUMIDITY
Operative temperature
-20°C .. +60°C
Storage temperature -40°C.. +85°C
Humidity (not condensed)
0 .. 90 %
Output type
Min
Max
Min Span
HOUSING
Material Self-extinguishing plastic
Mounting DIN rail in compliance
with EN-50022 and
EN-50035
Weight
about 90 g.
Output calibration
Current
± 7 uA
Voltage
± 5 mV
Power supply voltage
18 .. 30 Vdc
Reverse polarity protection
60 Vdc max
EMC ( for industrial environments )
Immunity
EN 61000-6-2
Emission
EN 61000-6-4
Current consumption
Current output
55 mA max.
Voltage output
25 mA max.
Burn-out values
Max. output value
22 mA or 10.6 V
Min. output value
0 mA or -0.6 V
Current
0 mA
20 mA
4 mA
Voltage
0 V
10 V
1 V
(1)referred to the input Span (difference between max. and min.)
Response time
(10÷ 90%)
about
500 ms
Output load Resistance - Rload
Current output
< 500
Ω
Voltage output
> 10 K
Ω
Short circuit current 26 mA max.
ISOLATION
Among all ways
1500 Vac,
50 Hz, 1 min
POWER SUPPLY
INPUT
OUTPUT (2 CHANNELS)
RTD
(
2, 3 wires)
Pt100
-200°C
850°C
50°C
Pt1000
-85°C
185°C
30°C
Ni100
-60°C
180°C
50°C
Ni1000
-60°C
150°C
30°C
RES.
(2, 3 wires)
0
Ω
500
Ω
50
Ω
0
Ω
2000
Ω
50
Ω
Input Calibration
(1)
RTD
the higher of ±0.1% and ±0.2°C
Low Res. the higher of ±0.1% and ±0.15
Ω
High Res. the higher of ±0.2% and ± 1
Ω
RTD/RES
V
mA
V
mA
DC SUPPLY
OUTPUT A
+
-
INPUT
OUTPUT B
