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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
T e isolated doubler/converter DAT 4631 B is able to measure and linearise t e standard RTDs and resistances wit 2 or 3 wires cable compensation .
In function of programming, t e measured values are converted in a current or voltage signal. T e device guarantees ig accuracy and performances
stability bot versus time and temperature.
T e programming is made by t e dip-switc located in t e window on t e side of t e enclosure. By means of dip-switc es it is possible to select t e input
type and range and t e output type wit out recalibrate t e device.
Moreover, by Personal Computer t e user can program all of t e device's parameters for is own necessity; t e configuration by PC allows to program
t e two outputs wit two independent settings. For all t e sensors it is possible to set t e cable compensation wit 2 or 3 wires.
Moreover it is available t e option of alarm for signal interruption (burn-out) t at allows to set t e output value as ig or low out of scale .
T e 1500 Vac galvanic isolation on all ways (input, outputs and power supply) eliminates t e effects of all ground loops eventually existing and allows t e
use of t e converter in eavy environmental conditions found in industrial applications.
T e DAT 4631 B is in compliance wit t e Directive 2004/108/EC on t e Electromagnetic Compatibility.
It is oused in a plastic enclosure of 12.5 mm t ickness suitable for DIN rail mounting in compliance wit EN-50022 and EN-50035 standards.
USER INSTRUCTIONS
T e converter must be powered by a direct voltage applied to t e terminals Q and R.
T e analog c annel measures t e value from t e sensor connected to t e terminals t e I, L and G and transmits t e output measures on t e terminals N
and M (OUT A) and t e terminals P and O (OUT B).
T e input and output connections must be made as s own in t e section "Connections".
It is possible to configure t e converter on field by dip-switc or Personal Computer as s own in t e section “ Programming ". T e configuration by dip-
switc es can be made also if t e device is powered (note: after t e configuration t e device takes some seconds to provide t e rig t 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-extinguis ing plastic
Mounting DIN rail in compliance
wit EN-50022 and
EN-50035
Weig t 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 t e 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 KΩ
S ort 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 Ω2000 Ω 50 Ω
Input Calibration (1)
RTD t e ig er of ±0.1% and ±0.2°C
Low Res. t e ig er of ±0.1% and ±0.15 Ω
Hig Res. t e ig er of ±0.2% and ± 1 Ω
RTD/RES
VmA
VmA
DC SUPPLY
OUTPUT A
+
INPUT
OUTPUT B
