Absolute Process Instruments IsoSplitter APD 3393 D Schnellstart-Handbuch - Seite 2

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Instructions
Precautions
WARNING! All wiring must be performed by a qualified electrician
or instrumentation engineer. See diagram for terminal designa-
tions and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Electrical Connections
See wiring diagrams at right. Observe polarity. If the output
does not function, check wiring and polarity.
*
Do not make any connections to unused terminals or use
them as wiring junctions for external devices. This may cause
permanent damage to the module!
Input and output ranges are factory pre-configured (at 24°C
±1°C). Use the front-mounted Zero and Span potentiometers
to calibrate the outputs.
Outputs
For milliamp output ranges determine if your devices provide
power to the current loop or if the loop must be powered by the
APD module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Channel 1 Output Device
– Terminal + Terminal
Measuring or recording device
accepts a voltage input.
Measuring/recording device accepts
a mA (current) input and the input is
unpowered or passive. APD module
provides the loop power.
Measuring or recording device
accepts a mA (current) input and
provides power to the current loop.
Channel 2 Output Device
– Terminal + Terminal
Measuring or recording device
accepts a voltage input.
Measuring/recording device accepts
a mA (current) input and the input is
unpowered or passive. APD module
provides the loop power.
Measuring or recording device
accepts a mA (current) input and
provides power to the current loop.
Potentiometer Input
The potentiometer must be connected to all three signal
input terminals as shown. 0-100% of the potentiometer
range must be used. A stable 1 VDC source is used to excite
the potentiometer. Voltage drop is measured across the
potentiometer, thus allowing any full-range potentiometer to
be used.
Potentiometer Input
Full scale or high side of potentiometer
Zero or low end of potentiometer
Potentiometer wiper arm
Module Power Terminals
Check label for module operating voltage to make sure
it matches available power. The power supplies are fuse
protected and the unit may be returned to API for fuse
replacement.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.
A
A
P
P
BSOLUTE
BSOLUTE
ROCESS
ROCESS
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and
position the lower spring clips
against the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate calibration source, provide an input to
the module equal to the minimum input required for the
application.
3. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when
the input signal is at its minimum. This will produce the
corresponding minimum output signal. For example: 4 mA
for a 4-20 mA output or –10 V for a ±10 V output.
4. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
3 (–)
4
(+)
provide adjustment for the 20 mA or high end of the signal.
5. Repeat adjustments for both output channels for maximum
accuracy.
3 (–)
4
(+20 V)
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
2 (–)
3
(+)
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
7 (–)
8
(+)
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test
7 (–)
8
(+20 V)
operation or a manual override. See wiring diagram at right.
Operation
The APD 3393 IsoSplitter
6 (–)
7
(+)
provides two optically isolated DC voltage or current outputs
that are linearly related to the input.
The green LoopTracker
that a signal is being sensed by the input circuitry of
the module. It also indicates the input signal strength by
changing in intensity as the process changes from minimum
to maximum.
If the LED fails to illuminate, or fails to change in intensity as
the process changes, check the module power or signal input
wiring.
Terminal
The two red LoopTracker output LEDs provide a visual
17
(+1 VDC)
indication that the output signals are functioning. They become
18 (–)
brighter as the input and each corresponding output change
from minimum to maximum.
19
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring. Note that it may be difficult to
see the LEDs under bright lighting conditions.
I
I
NSTRUMENTS
NSTRUMENTS
Upper Mount
Spring Clips
®
accepts a potentiometer input and
input LED provides a visual indication
®
1220 American Way Libertyville, IL 60048
Phone:
800-942-0315
Fax: 800-949-7502
APD 3393
Output 1
Output 2
1
2 3 4
2 3 4
5
Wire terminal
9 10
11 12
13 14
15 16
torque
0.5 to 0.6
Output Test 1 Output Test 2
Output Test 1 Output Test 2
Nm or
4.4 to 5.3
in-lbs
 * Do
not make
connections
to unused
terminals!
Input
17 18 19
20
no t us ed
no t us ed
25 26
Power
27
28
no t us ed
Voltage
Device 1
–
+
Voltage
Output
1
2
3
4
Ch. 1
mA output: determine if receiving device has a passive or powered
input. The module can be wired for a sinking or sourcing mA output.
* To avoid damage to the module, do not leave any unused
mA outputs disconnected. Use a 1000 Ohm 1/2 Watt resis-
tor across unused mA terminals.
mA
Device 1
R
i
*
+
–
Current
Loop
Loop
Sinking
Power
Power
Output
Source 1
Source 2
–
+
Module mA
output is
1
2
3
4
unpowered
Ch. 1
Passive
mA
Device 1
(2-wire)
*
Current
R
Sourcing
i
Output
–
+ 20V
Module
powers mA
1
2
3
4
output loop
Ch. 1
External
Contacts
for Test
Function
9
10
11 12
Channel 1
Output
Loop
Test Cal.
Tracker
Test
IsoSplitter
Span
Input
Loop
Zero
Tracker
APD 3393
Potentiometer to DC Isolated Signal Splitter
Transmitter
17
18
19
20
 * Do
not make
connections
to unused
terminals!
Cu 60/75°C
25
26
27
28
conductors
14 AWG
28 Power AC or DC –
max.
26 Earth Ground
25 Power AC or DC +
To maintain full isolation avoid combining power supplies in
common with inputs, outputs, or unit power.
api-usa.com
6 7 8
6 7 8
Voltage
Device 2
–
+
5
6
7
8
Ch. 2
mA
Device 2
R
i
+
–
–
+
5
6
7
8
Ch. 2
mA
Device 2
device
R
i
–
+ 20V
5
6
7
8
Ch. 2
13
14
15 16
Channel 2
Output
Loop
Test Cal.
Tracker
Test
®
Span
Zero
17 Full Scale*
18 Minimum*
19 Wiper Arm
*May be switched
for reverse output