Precautions
WARNING! All wiring must be performed by a qualified electri-
cian or instrumentation engineer. See diagram for terminal des-
ignations 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.
Range Selection
See model/serial number label for any applicable options or
custom ranges. Select ranges before installation.
See table below for module output range settings. From the
table, find the switch setting that matches your output range.
Make sure to set the V—I switch for voltage or current output
respectively.
Socket and Mounting
The module installation requires a protective panel or enclosure.
Use API 008 or finger-safe API 008 FS socket.
The socket clips to a standard 35 mm DIN rail or can be
attached to a flat surface using the two mounting holes.
Electrical Connections
See model/serial number label for module power requirements,
and any applicable options or custom ranges.
Polarity must be observed for input and out output wiring con-
nections. If the output does not function, check switch settings
and wiring polarity.
Signal Input Terminals
The potentiometer must be connected to all three signal input
terminals as shown. 0-100% of the potentiometer range must
be used. The API 4008 G utilizes a stable 1 VDC source to
excite the potentiometer.
Installation and Setup
API 4008 G
Signal Output Terminals
Polarity must be observed when connecting the signal output to
the load. The positive connection (+) is connected to terminal 7
and the negative (–) is connected to terminal 8.
Note that with a mA current output the module provides power
to the output loop.
For ranges that fall between the listed ranges use the next
highest setting and trim the output signal with the zero and
span potentiometers.
Module Power
Check model/serial number label for module operating voltage
to make sure it matches available power.
AC power is connected to terminals 1 and 3.
For DC powered modules, polarity MUST be observed.
Positive (+) is wired to terminal 1
Negative (–) is wired to terminal 3
Calibration
After the API 4008 G range switches are set, and the module is
installed and powered, top-mounted Zero and Span potentiom-
eters are available to fine-tune the module output.
Note: Perform the following calibration procedure any time
switch settings are changed.
1. Apply power to the module and allow a minimum 20 minute
warm up time.
2. Set the input potentiometer to its minimum value to provide
a minimum input to the module.
3. Connect an accurate measurement device to the module
output. Adjust the module’s Zero potentiometer for the
exact minimum output desired. The Zero control should
only be adjusted when the input signal is at its minimum
to produce the corresponding minimum output signal. For
example: 4 mA for a 4-20 mA output or –10 V for a ±10V
output.
4. Set the input potentiometer at its maximum, and then
adjust the module’s 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 cor-
responding maximum output signal. Example: for 4-20 mA
output signal, 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 pushed to provide a fixed output when
depressed. This will drive the device on the output side of the
loop (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.
It can be adjusted to vary the output signal from 0 to 100%
of the calibrated output range. When released, the output will
return to normal.
Turn the multi-turn Test Range potentiometer while holding
the Test Switch depressed until the desired output test level
is reached.
Operation
The API 4008 G utilizes a stable 1 VDC source to excite the
potentiometer. This voltage is stabilized against the potentiom-
eter resistance value variations over the entire operating range.
The resulting potentiometer wiper voltage is amplified and
passed through an optical coupler to the output stage where it
is scaled to the desired output range.
The green LoopTracker
®
input LED provides a visual indication
that a signal is being sensed by the input circuitry of the mod-
ule. 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.
8
7
(–)
(+)
PLC, Display,
Recorder w.
Voltage Input
Voltage output
AC or DC (–)
Module power
AC or DC
(+)
Socket top
view
2
1
8
7
3
4
5
6
(–)
(+)
Sourcing mA
output
20 V loop power
PLC, Display,
Recorder w.
mA Input
R
i
Key down
when
panel
mounting
6
Full Scale
5
Wiper Arm
4
Minimum
Potentiometer Input
Potentiometer Full Scale
and Minimum may be
switched for reverse
output
Voltage Output
A B
Current Output
A B
0-1 VDC
V 0
0-2 mA
I 0
0-2 VDC
V 8
0-4 mA
I 8
0-4 VDC
V 1
0-8 mA
I 1
0-5 VDC
V 9
0-10 mA
I 9
0-8 VDC
V 2
0-16 mA
I 2
0-10 VDC
V 3
0-20 mA
I 3
1-5 VDC
V 6
2-10 mA
I 6
2-10 VDC
V 7
4-20 mA
I 7
±5 VDC
V 4
±10 VDC
V 5
API 008 FS
8-Pin Finger Safe Socket
1.063
[27.00]
2.559
[65.00]
0.126
[3.20]
Dia.
1.181 [30.00]
0.220 [5.60]
8
7
6
5
4
1
2
3
1.496 [38.00]
Contacts: Nickel plated
brass, 10 Amps max.
Screws: M3, zinc
plated steel
Wiring: #14 AWG solid
or stranded
Top View
Terminal Location
8
7
6
5
4
1
2
3
API 008
8-Pin Socket
0.165
[4.19]
Dia.
1.06
[26.9]
2
1
3
4
5
6
7
8
0.312 [7.92]
0.98
[24.9]
1.295
[32.89]
1.61 [40.9]
Contacts: Nickel plated
brass, 10 Amps max.
Screws: 6-32 x 1/4", zinc
plated steel
Wiring: #12 to #22 AWG
solid or stranded, or 1/4"
or 5/16" spade lug
2.11
[53.6]
Terminal Location
Top View
8
7
6
5
4
1
2
3
0
5
1
6
4
2
9
7
3
8
A
4008 G
B
Output
Select
I V
Output
Range
Potentiometer Input
Terminal
Zero or low end of potentiometer
4
Potentiometer wiper arm
5
Full scale or high side of potentiometer
6
(
+1 VDC)
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 lead and 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
www.mod-tronic.com | [email protected] | 1-800-794-5883
