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 removing
or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un électricien
ou ingénieur en instrumentation qualifié. Voir le diagramme 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.
Electrical Connections
See wiring diagrams. Observe 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!
Ranges
APD 4300 I/O ranges are set at the factory and must be speci-
fied when ordering. Listed below are commonly ordered input
and output ranges. Consult factory for other available ranges or
special ranges. See the model/serial number label for module
information, options, and I/O range information.
Input
Polarity must be observed when connecting the signal input.
For a transmitter with a current output, determine if it provides
power to the current loop or if it must be powered by the APD mod-
ule. Use a multi-meter to check for voltage at the transmitter output
terminals. Typical voltage may be in the range of 9 to 24 VDC. In
this case, wire the device to terminals 9 and 11.
Output
Polarity must be observed when connecting the signal output.
If your device requires a current input, determine if it provides
power to the current loop or if it must be powered by the APD mod-
ule. Use a multi-meter to check for voltage at the input terminals.
Typical voltage may be in the range of 9 to 24 VDC. In this case,
wire the device to terminals 2 and 4.
Module Power Terminals
Check model/serial number label for module operating voltage to
make sure it matches available power.
When using DC power, either polarity is acceptable, but for con-
sistency with similar API products, positive (+) can be wired to
terminal 13 and negative (–) can be wired to terminal 16.
The power supplies are fuse protected and the unit may be
returned to API for fuse replacement.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective enclo-
sure 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 downward and position against DIN rail.
2. Clip lower mount to bottom edge of DIN rail.
3. Push front of module upward until upper mount snaps into
place.
Removal
1. Push up on the bottom back of the 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
Input and output ranges as specified on your order are factory
pre-configured (at 24°C ±1°C). Front-mounted, Zero and Span
potentiometers can be used to calibrate the output to compensate
for load and lead variations.
1. Apply power to the module and allow a minimum 20 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 ±10V output.
4. Next, set the input at maximum, 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 provide
adjustment for the 20 mA or high end of the signal.
5. Repeat adjustments for maximum accuracy.
Output Test Function
The test button may be used to drive the device on the output (a
panel meter, chart recorder, etc.) with a known good signal that
can be used as a system diagnostic aid during initial start-up or
during troubleshooting.
When depressed it will drive the output with a known good signal.
When released, the output will return to normal.
You can also enable the test function by connecting an external
switch or button to terminals 5 and 6. This can be used as a
remotely operated manual override to set the output at a fixed
value regardless of the input signal.
The Test Cal. potentiometer can be used to set the test output to
the desired level. It is factory set to provide approximately 50%
output. It is adjustable from 0 to 100% of the output span. Press
and hold the Test button and adjust the Test Cal. potentiometer
for the desired output level. When released, the output will return
to normal.
Operation
The APD 4300 is factory configured to your exact input and output
requirements. The input is filtered, either amplified or attenuated
as required, then passed through to the output stage.
The green LoopTracker
®
input LED provides a visual indication
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.
Note that it may be difficult to see the LEDs under bright lighting
conditions.
The red LoopTracker output LED provides a visual indication
that the output signal is functioning. It becomes brighter as the
input and the corresponding output change from minimum to
maximum.
For current outputs, 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.
Installation and Setup
APD 4300
Common Voltage Inputs
0-100 mV
1-5 V
±200 mV
0-200 mV
0-10 V
±500 mV
0-500 mV
0-20 V
±1 V
0-1 V
0-50 V
±2 V
0-2 V
0-100 V
±5 V
0-5 V
±100 mV
±10 V
Common Current Inputs
0-1 mA
0-20 mA
0-100 mA
0-10 mA
4-20 mA
0-200 mA
0-16 mA
10-50 mA
0-500 mA
Common Voltage Outputs
0-1 V
1-5 V
±5 V
0-5 V
0-10 V
±10 V
Common Current Outputs
0-20 mA
0-16 mA
4-20 mA
Type of Input Device
– Terminal + Terminal
Sensor or transmitter w. voltage output.
9 (
–)
11
(
+)
Transmitter with a mA (current) output
that provides power to the current
loop. Typically a 3 or 4-wire device.
9 (
–)
11
(
+)
Transmitter with mA (current) output that
is unpowered. Typically a 2-wire device.
APD module provides loop power.
11 (
–)
10
(
+15 VDC)
Device Connected to Output
– Te Terminal
Measuring or recording device accepts
a voltage input.
3 (
–)
4
(
+)
Measuring/recording device accepts a
mA (current) input and the input is
unpowered or passive. APD module
provides the loop power.
3 (
–)
4
(+20 V)
Measuring or recording device accepts
a mA (current) input and provides
power to the current loop.
2 (
–)
3
(
+)
6
5
7
8
External Contact
for Test Function
Voltage Output
–
+
Voltage
Device
2
1
3
4
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
APD 4300
DC to DC
Isolated Transmitter
Loop
Tracker
To maintain full isolation avoid com-
bining power supplies in common
with inputs, outputs, or unit power.
13 Power AC or DC +
14
Earth Ground
16 Power AC or DC –
14
13
15
16
Cu 60/75°C
conductors
14 AWG max.
api-usa.com
1220 American Way Libertyville, IL 60048
Phone:
800-942-0315
Fax: 800-949-7502
A
A
BSOLUTE
BSOLUTE
P
P
ROCESS
ROCESS
I
I
NSTRUMENTS
NSTRUMENTS
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
Current Sinking Output
2
1
3
4
–
+
+
–
Loop
Power
Source
+
–
4-20 mA
Device
R
i
Module mA output is
unpowered
–
+ 20V
mA
Device
R
i
2
1
3
4
Current Sourcing Output
Module powers
mA output loop
mA output: determine if receiving device has a pas-
sive or powered input. The module can be wired for
a sinking or sourcing mA output.
10
9
11
12
–
+
Voltage Input
Voltage
Xmtr
Current Sinking Input
+
–
–
+
–
+
Loop
Power
Source
mA
Xmtr
R
i
10
9
11
12
Module mA input is
unpowered
mA
Xmtr
R
i
10
9
11
12
+15V
–
Current Sourcing Input
Module powers mA input loop
mA input: determine if transmitter has a passive
or powered output. The module can be wired for
a sinking or sourcing mA input.
1
2 3 4
5 6
7 8
9 10 11
12
13 14
15
16
Input
Output Test
Output
Power
Wire terminal
torque
0.5 to 0.6 Nm or
4.4 to 5.3 in-lbs
* Do not
make connec-
tions to unused
terminals!
* Do not make connections
to unused terminals!
