Absolute Process Instruments API 4003 G I Quick Start Manual - Page 2
Browse online or download pdf Quick Start Manual for Measuring Instruments Absolute Process Instruments API 4003 G I. Absolute Process Instruments API 4003 G I 2 pages. Potentiometer input to dc transmitters, isolated
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Installation and Setup
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.
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
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
Polarity must be observed for output wiring connections. If the
output does not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
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 4003 G I utilizes a stable 1 VDC source to
excite the potentiometer.
Potentiometer Input
Zero or low end of potentiometer
Potentiometer wiper arm
Full scale or high side of potentiometer
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 current output the module provides power to
the output loop unless option EXTSUP was ordered for a sinking
output requirement.
Module Power Terminals
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
0.165
1.295
[32.89]
[4.19]
Dia.
Terminal Location
6
5
4
3
1.06
[26.9]
8
7
1
2
7
8
1
2
Top View
1.61 [40.9]
0.98
0.312 [7.92]
[24.9]
API 008 8-Pin Socket
www.mod-tronic.com | [email protected] | 1-800-794-5883
Socket top
view
Key down
when
panel
mounting
Sourcing mA
output
20 V loop power
Voltage output
EXTSUP Option
Current
Sinking mA
Output
Terminal
4
5
6
(+1 VDC)
EXTSUP Option
Current
Sinking mA
Output
External
Power
Source
Terminal Location
5
4
6
3
2.11
[53.6]
2
7
8
1
Top View
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
API 008 FS 8-Pin Finger Safe Socket
Potentiometer Input
Potentiometer Full Scale
and Minimum may be
switched for reverse
output
6
5
4
3
AC or DC (–)
Module power
AC or DC
(+)
7
8
1
2
(+)
(–)
R
i
PLC, Display,
Recorder w.
mA Input
7
8
(+)
(–)
PLC, Display,
Recorder w.
Voltage Input
7
8
To maintain full isolation
(+)
(–)
avoid combining power
supplies in common with
Loop
output and unit power.
Power
Source
–
+
R
i
PLC, Display,
Recorder w.
mA Input
7
8
(+)
(–)
Externally powered device
Powered
that provides power to the
mA Device
current loop.
1.181 [30.00]
0.126
5
4
[3.20]
6
3
Dia.
2.559
[65.00]
7
2
8
1
1.496 [38.00]
Contacts: Nickel plated
brass, 10 Amps max.
Screws: M3, zinc
1.063
plated steel
[27.00]
Wiring: #14 AWG solid
or stranded
API 4003 G I
Calibration
The API 4003 G I comes from the factory calibrated to your
specifications. Field calibration is typically not required, how-
ever, Zero and Span potentiometers are available to fine-tune
the module output.
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
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
will return to normal.
The Test Cal. level is factory set to approximately 50% output.
Example: If you are checking a 4-20 mA current loop, when the
push button is held depressed, the output from the module will
be approximately 12 mA.
Operation
The API 4003 G I 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.