Wilkerson Instrument DR4302 Series User manual

DR4302
DC INPUT
DUAL 4/20 mA OUTPUT
(SPLITTER)
ISOLATED TRANSMITTER
DIN RAIL MOUNT
DESCRIPTION
The DR4302 provides two
individually isolated DC current
outputsproportionaltoaDCvoltage
or current input. The input and
outputareranged at the factory, but
Zero and Span controls provide
±15% adjustability.
The DR4302 provides 3 way
isolationbetweeninput, output, and
power source.
The isolation makes the product
useful for measuring input signals
with high common mode voltages
and for breaking ground
connections to eliminate ground
loops. Itcan also be used forsignal
conversion and scaling as well.
Thescrew terminal blocksplug into
the case, which allows easy wiring
and removal of products.
All of the DR Series of products
provide transient protection to help
eliminatedamagefromlightningand
from other transients coupled onto
the power and signal leads by
system wiring.
INSTALLATION
The DR Series of products mount
onstandard35mmDINrails. Install
byhookingthetopofthecase’s latch
onto the top of the DIN rail. Then
push down on the case, letting it
pivot on the DIN rail. The bottom
slide of the mount will snap behind
the rail and secure the product.
Toremove,insertascrewdriver into
the hole on the metal latch on the
bottomofthe case, and pullthelatch
down until it allows the front of the
case to be lifted up.
WARRANTY
TheDR4302Seriesofproductscarry
alimited5yearwarranty.Intheevent
ofafailureduetodefectivematerialor
workmanship,theunitwillberepaired
orreplacedatnocharge.
CALIBRATION
The DR4302 is factory calibrated to the input and output noted on the
case side label. Terminal connections are shown on the front label.
To make field adjustments to the product:
1. Remove the circuit board from the case by squeezing the
2 locking tabs (see diagram below) and pulling the case
front, with the circuit board, out of the case.
2. Connect a calibrator to the input terminals.
3. Connect an accurate voltmeter or current meter to the
Output 1 terminals.
4. Apply power to the unit.
5. Set the input for its zero scale and adjust the Zero control for
zero scale output.
6. Set the input for its full scale and adjust the Span control for
full scale output.
7. Repeat once or twice until no further adjustment is required.
8. Repeat steps 3 through 7 for Output 2.
1 2

BANDWIDTH
-3db at 3 Hz
OUTPUT RIPPLE
(peak to peak)
<0.1% of span
ACCURACY
±0.1% of span
LINEARITY
±0.05% of span
COMMON MODE REJECTION
100 dB, DC to 60 Hz
ISOLATION,
OUTPUT/INPUT/POWER
>500 megohms
1000 VPeak
OPERATING TEMPERATURE
14°F to 158°F/-10°C to 70°C
TEMPERATURE STABILITY
±(0.01% of span)/°C max
POWER
21 to 28 VDC, 60 mA max
10 to 15 VDC, 120 mA max
SPECIFICATIONS
INPUT RANGE
Voltage
1/5 V, 0/10 V
Current
0/1 mA, 0/20 mA
4/20 mA, 10/50 mA
INPUT IMPEDANCE
Voltage
=> 170 kilohms
Current
Current Input Input Shunt
Value
OUTPUT
Current
4/20 mA
Compliance > 12 V Per Output
at 24 V Power
1000 OHM
100 OHM
124 OHM
20OHM
0/1 mA
0/20 mA
4/20 mA
10/50 mA
TWO-WIRE TRANSMITTER WIRING
In installations where isolation between the power supply and the input
terminals is not required, the DR Series power supply can also be used to
poweraTwo-WireTransmitter (see drawing below). If isolation isrequired,
aseparate power supply must be used to power the Two-Wire Transmitter.
CASE DIMENSIONS INCHES [mm]
Specifications Are Subject To Change Without Notice. © 2012 Wilkerson Instrument Co., Inc. DWG#W103853 8/12
34
1
PRESET
VOLTAGE
CURRENT
INPUT
BLOCK DIAGRAM AND PIN CONNNECTIONS
CURRENT
OUTPUT
1
MODULATOR
DEMODULATOR
1
2
+
+
+
&
SHIELD
INPUT
COMMON
INPUT
POWER
SUPPLY
OUTPUT 1
_
_
+
_
_
+
_
7DC
POWER
CURRENT
OUTPUT
2
DEMODULATOR
2
+
_
+
OUTPUT 2
_
8
3
4
5
6
ZERO ADJ.
SPAN ADJ.
SPAN ADJ.
ZERO ADJ.