Absolute Process Instruments DuoPak APD 2010 D Посібник - Сторінка 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.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do 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.
Outputs
For milliamp 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.
Device for Output Channel 1
Measuring/recording device accepts a
voltage input.
Measuring/recording
device
has
an unpowered or passive mA input.
APD module provides the loop power.
Measuring/recording device has a mA
input and powers the current loop.
Device for Output Channel 2
Measuring/recording device accepts a
voltage input.
Measuring/recording
device
has
an unpowered or passive mA input.
APD module provides the loop power.
Measuring/recording device has a mA
input and powers the current loop.
Input 1, Temperature
The sensor type and temperature range are factory configured.
See the model/serial number label for sensor type and range.
Temprature Input Ch. 1
Term.
17
Two wire RTD or thermistor
Signal –
17
Three wire RTD
Signal –
Input 2, DC
For milliamp 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.
DC Input Channel 2
Sensor or transmitter with a voltage
output.
Transmitter with a mA output that pow-
ers the current loop. Typically a 3 or
4-wire device.
Transmitter with an unpowered mA
output. Typically a 2-wire device. APD
module provides loop power.
Module Power Terminals
Check label for module operating voltage to make sure it
matches available power. The power supplies are fuse protect-
ed 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.
BSOLUTE
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.
1. Tilt front of module down and posi-
tion 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,
Terminal Terminal
adjust the Zero potentiometer for the exact minimum output
3 (–)
4
(+)
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. Example: for 4-20 mA
3 (–)
4
(+20 V)
output, the Zero control will provide adjustment for the 4 mA
or low end of the signal.
2 (–)
3
(+)
4. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
Terminal Terminal
only be adjusted when the input signal is at its maximum.
7 (–)
8
(+)
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.
7 (–)
8
(+20 V)
5. Repeat adjustments for both output channels for maximum
accuracy.
6 (–)
7
(+)
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.
Term.
Term.
Each Test Cal. potentiometer is factory set to approximately
Jumper
19
50% output. Each can be adjusted to set the test output from
18 & 19
Signal
+
0 to 100% of the output span. Press and hold the Test button
18
19
and adjust the corresponding Test Cal. potentiometer for the
Exc.
Signal
+
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2010 accepts one RTD or thermistor input and one DC
voltage or current input and provides two optically isolated DC
Terminal Terminal
voltage or current outputs that are linearly related to the inputs.
Green LoopTracker
21(–)
23
(+)
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
21 (–)
23
(+)
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as
the process changes, check the module power or signal input
23 (–) 22
(+15 V)
wiring. Note that it may be difficult to see the LEDs under bright
lighting conditions.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
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.
ROCESS NSTRUMENTS, Inc.
Upper Mount
Spring Clips
input LEDs provide a visual indication that
®
1220 American Way Libertyville, IL 60048
800-942-0315
Phone:
APD 2010
Voltage
Device 1
–
+
Voltage
Output
1
2
3
4
Ch. 1
mA
Device 1
R
i
+
–
Loop
Loop
Power
Power
Source 1
Source 2
–
+
Current
Sinking
1
2
3
4
Output
Ch. 1
mA
Device 1
R
i
–
+ 20V
Current
Sourcing
Output
1
2
3
4
Ch. 1
External
Contacts
for Test
Function
9
10
11 12
Channel 1
Output
Loop
Test Cal.
Tracker
Test
Span
Input
Loop
Zero
Tracker
APD 2010
Channel 1
RTD to DC
Isolated Transmitter
17
18
19
20
Ch. 1
Current Sourcing Input
3-Wire Input
17
18
19
20
Source 2
Ch. 1
+
2-Wire Input
Jumper 18 & 19
Current Sinking Input
To maintain
full isolation
avoid com-
bining power
supplies in
common with
inputs, out-
puts, or unit
power.
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 +
API maintains a constant effort to upgrade and improve its prod-
ucts. Specifications are subject to change without notice. Consult
factory for your specific requirements.
api-usa.com
Fax: 800-949-7502
Voltage
Device 2
–
+
5
6
7
8
Ch. 2
mA
Device 2
R
i
+
–
–
+
5
6
7
8
Ch. 2
mA
Device 2
R
i
–
+ 20V
5
6
7
8
Ch. 2
13
14
15 16
®
Channel 2
Output
Loop
Test Cal.
Tracker
Test
Span
Input
Loop
Zero
Tracker
Channel 2
DC to DC
Isolated Transmitter
21
22
23
24
+15V
–
R
i
mA
Xmtr 2
Ch. 2
21
22
23
24
+
–
Loop
Power
–
R
i
mA
Xmtr 2
Ch. 2
21
22
23
24
–
+
Voltage
Xmtr 2
Ch. 2
Voltage Input