Omega Products DP409 Installation Manual
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A
y
DP409
DP434
DP409A
/
DP434A
I
and
Analog Melt Pressure Indicator
&
Digital Melt Pressure Indicator
459 ’
3
2
1
7
a
9
DP409/DP409A
0
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OMEGA? .. Your Source for
Process Measurement and Control
TEMPERATURE
&
&
M
0’
Wire: Thermocouple, RTD
&
M
Calibrators
M
Recorders, Controllers
0’
infrared Pyrometers
Ice Point References
Thermistor Probes, Connectors, Panels Themocoupie, RTD
&
Thermistor
&
Process Monitors
PRESSURE/STRAIN FORCE
0’
Transducers & Strain Gauges
&
I2
Load Cells
I2
Displacement Transducers
I2
instrumentation
Pressure Gauges
&
Accessories
FLOW/LEVEL
II?
Rotameters, Gas Mass Flowmeters
IZ?
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Ca
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&
pH
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Gf
[a
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0’
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[a
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Heating Cable
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Cartridge
0’
immersion & Band Heaters
I% Flexible Heaters
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TABLE OF CONTENTS
DP409
DP434
DP409
ANALOG MELT PRESSURE INDICATOR
DIGITAL MELT PRESSURE INDICATOR
ANALOG MELT PRESSURE INDICATOR
SECTION
SECTION 1 DESCRIPTION
SECTION 2 UNPACKING
3
SECTION
3.1
3.2
PARTS OF THE PRESSURE TRANSDUCER . . . . . . . . . . . 1
Front
Rear
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4 INSTALLATION
4.1
SECTION
5.1
5.2
5.3
installation Wiring
5
ADJUSTMENTS
Description .....................................................................................
Procedure
Adjustments
......................................................................................
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DP409A
-
PAGE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-
ZERO AND SPAN
Control
Setpoints
......................................
. . . . . . . . . . . . . . . . . . . . . . . .
1
1
1
2
3
3
5
5
5
6
SECTION 6 OPTION SWITCH
6.1
6.1.1
6.1.2 Calibration Shunt
6.1.3 Filter (Damping Circuit), Amp Board ..............................................
6.1.4
6.2
6.2.1
6.2.2
Amplifier Board on
Transducer
Recorder Output Select, Amp Board
Logic Option Board on
Setting of Control 1 and/or 2 Setpoints
Reset (Automatic/Manual), Logic Option Board
Sensitivity,
DP409/DP409A
Resistor,
SECTION 7 TROUBLESHOOTING
SECTION 6 SPECIFICATIONS
9
SECTION
OPTION WORKSHEETS AND SUMMARY
SElTlNGS
Board
Amp
Amp Board .........................................
DP409A
.....................................................
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
....................................
...............................................
...............................................
.............................................
..........................................
.......................... 10
. . . . . . . . . . . . . 12
6
6
7
7
8
8
8
8
10
11
TABLE OF CONTENTS (CONT ’D)
DP409
DP434
DP434
ANALOG MELT PRESSURE INDICATOR
DIGITAL MELT PRESSURE INDICATOR
DIGITAL MELT PRESSURE INDICATOR
SECTION
SECTION 10 DESCRIPTION
SECTION 11 UNPACKING
12
SECTION
12.1
12.2
Front
Rear
PARTS OF THE PRESSURE TRANSDUCER..
............................................................................................
.............................................................................................
........................................................
..........................................................
SECTION 13 INSTALLATION
13.1
SECTION
14.1
14.2
installation Wiring .........................................................................
14
ADJUSTMENTS
Description
Procedure
...................................................................................
....................................................................................
PAGE
.15
....
............................................
-
ZERO AND SPAN
.........
.I9
15
15
15
16
17
17
19
19
SECTION
15.1
15.1.1
15.1.2
151.3
15.1.4
15.2
15.2.1
15.2.2
15.3
15.4
15.4.1
15.4.2
Amplifier Board
Transducer Sensitivity, Amp Board
Calibration Shunt Resistor
Filter (Damping Circuit), Amp Board
Recorder Output Select, Amp
Display and Logic Option Boards
Decimal Point, Display Board
Range Select, Logic Option
Adjust men ts
Logic Option Board on
Setting of Control 1 and/or 2 Setpoints
Reset (Automatic/Manual), Logic Option Board
15
OPTION SWITCH
DP434/DP434A
on
DP434A Control Setpoints
-
DP434A
SElTlNGS
...........................................................
Board
................................................
......................................................
&
Display Boards
....................................................
SECTION 16 TROUBLESHOOTING
SECTION
17 SPECIFICATIONS
........................................
.............................................
..............................................
...........................................
...........................................
........................................
.................................
......................
............................
....................................
...........................
SECTION 18 OPTION WORKSHEETS AND SUMMARY
ii
20
20
20
21
21
22
22
22
23
23
24
24
25
26
26
.28
SECTION 1 DESCRIPTION
DP409
The OMEGA
transducer power supply, indicator and signal conditioner. The
%
DIN standard size case of extruded aluminum protects against
RFI noise, heat dispersion and physical damage. The
is styled for ease of reading and incorporates an intematronal face.
Analog Melt Pressure Transducer is a combination
6”:
240 degree meter
DP409
DP409
EMI
and
The DP409 is designed for use with an OMEGA pressure transducer or any
4-169,
350 ohm wheatstone bridge strain
push-button allows for span adjustment w ile you adjust zero at zero
pressure. The complete electronic assembly can be removed and/or
replaced from the front panel for convenient service and option selection.
Options include dual setpoints and auxiliary outputs for recorders, remote
indicators or a computer interface. The dual
the letter “A”
shutdown sequence is initiated, thereb
prevent accidental shutdown, the act o
will not actuate the alarm relays.
(DP409A),
can be used to give a warning before an actual
age transducer. A calibration
%
setpoint
reducing or avoiding downtime. To
Y
setting of the
option, designated by
setpoint
or calibration
SECTION 2 UNPACKING
Remove the Packing List and verify that all equipment has been received.
there are any questions about the shipment, please call the OMEGA
Customer Service Department at l-800-622-2378 or (203) 359-l 660.
U
on receipt of shipment, inspect the container and equipment for any signs
P
damage. Take particular note of any evidence of rough handling in
o
transit. Immediately report any damage to the shipping agent.
NOTE
claims
The canter will not honor any
their examination. After examining and removing contents, save packing
material and carton in the event reshipment is necessary.
unless all shipping material is saved for
SECTION 3 PARTS OF THE MELT PRESSURE TRANSDUCER
3.1 FRONT
Figure 3-1 shows the front of the indicator.
If
Figure 3-1. Front
of the indicator
1
DP409
KEY
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
l/ 4
D IN
Enclosure.
Large Analog Display with
p ressu re and con tr o l
p ressu re to fu ll- sca le r ange .
Ca lib ra ti on
ad jus t span fo r ca li b ra ti on p ressu re o f tr ansduce r and to rese t con tr o l
a la rm s when con fi gu red fo r m anua l r ese t.
Selector/Reset Toggle Switch.
Span Potentiometer.
con junc ti on w it h ca li b ra ti on /r ese t s w it ch .
Ze ro Po ten ti o m e te r. U sed to ra ise /t owe r ze ro ca li b r a ti on po in t on
d isp lay .
Access
access to in te r na l D IP sw it ches .
Screw.
Control 2 Potentiometer.
se tpo in t.
Fa ; F ti
Con tr o l l/ Con tr o l 2 Se lec to r Togg le Sw it ch . Used to d isp lay and
ad jus t Con tr o l 1 and Con tr o l 2 se tpo in ts .
Ea ;n t;
2 A la rm Ind ica ti on LED . L igh ts when Con tr o l 2
1 A la rm Ind ica ti on LED . L igh ts when Con tr o l 1
O u te r case d im ens ions
240”
dial indication.
a la rm
se tpo in ts . Shows re la ti on o f ope r a ti ng
U sed to ra ise /l owe r ca li b ra ti on p r essu r e in
Unsc r ew to re m ove ind ica to r fr o m enc losu re to ga in
U sed to r a ise /lowe r Con tr o l 2 a la rm
Ind ica tes ope r a ting
U sed to d isp lay and
se tpo in t
se tpo in t
i s
i s
11
Con tr o l Po ten ti o m e te r. U sed to ra ise /t owe r Con tr o l 1 a la rm se tpo in t.
3 .2 REAR
F igu re 3 -2 shows the rea r o f t he ind ica to r. Sec ti on 4 .1 g ives the desc ri p ti on
o f t he te rm ina ls loca ted on the rea r.
-
COM
NO
oNma-
Figure
NC
+
3 -2 .
AC 110 220CASE
4-20 OUT NEU
+SlG-SlG+EX-
Rear of the Indicator
DP409
SECTION 4 INSTALLATION
DP409
The
metal structure. High heat or humid locations should be avoided. The outer
case is designed for a
slide the unit through the opening until it is flush against the front panel.
Slide the two bars through the slots on the side of the unit until they are tight
against the back of the panel. Secure bars with the two screws provided.
would normally be mounted in a control panel or other sheet
l/4
DIN panel cutout. Refer to Figure 4-1. To mount,
THE
DP409/DP409A
REQUIRES AT
-EAST
SPACE
6%” OF FREE
BEHIND THE
CUT-OUT
DIMENSIONS
T
3.62”
91.95
mm
PANEL. REFER TO
FIGURE
8-l FOR
THE SIDE VIEW.
Figure 4-1. Cutout Dimensions
4.1 INSTALLATION
Compliance with local and national codes is recommended. Wiring should
be double checked before applying power. Power and signal leads should
be run separately, if possible, to prevent electrical interference. The
recorder output, except for the
‘+”
and
the
‘+” and
to the
WIRING
“R”
(4-20mA output) option, is connected to
y-n
Recorder Output Terminals. The
“-”
terminals
marked
“4-20
OUT ”.
(4-20mA
“R”
output) is wired
3
Figure 4-2 shows the rear of the indicator and the table following explains
the terminals.
-
i
NO COM NC +
4-20 OUT
AC 110 220CASE
GND
1
NO COM NC
@
Control 2 Relay
Control 2 Relay
Control 2 Relay
4-20mA
4-20mA
Power Supply
Power Supply
Power Supply
Recorder Output
Recorder Output
-
AC neutral
-
11 OV AC input
-
220V AC input
RECORDER
@
OUTPUT
-
+ TRANSDUCER
‘1
u
‘1
11
‘1
+SIG-SIG+EX-EX
0
0.
Figure 4-2. Rear Terminal Assembly
DESCRIPTION
-
normally open
-
common
-
normally closed
-
positive (+) signal
(-)
-
negative
signal
Case Ground
Calibration Switch
Calibration Switch
4
-
for use with internal shunt transducers
-
for use with internal shunt transducers
CONTINUED ON NEXT PAGE
Control 1 Relay
TS
-
normally open
DESCRIPTION
lDWFR
left
to
nbhtl
DP409
Control 1 Relay
Control 1 Relay
Voltage Recorder Output
Voltage Recorder Output
Transducer
Transducer
Transducer
Transducer
SECTION 5 ADJUSTMENTS
5.1
DESCRIPTION
All Wheatstone bridge type strain gages have some zero imbalance. This
small error can be
potentiometer on the front panel. The zero should only be reset when zero
pressure is being applied to the transducer. The zero adjustment changes
the offset or starting point for the indicator to correspond to zero pressure on
the transducer. The span adjustment changes the gain or slope of the
amplifier to match the output curve of the transducer. A
or dead-weight tester can be used to check calibration.
then be adjusted to give the desired output at a particular pressure. Most
transducers are calibrated against an external shunt resistor. This shunt
resistor simulates an actual pressure input value. The value is normally
marked on the transducer itself. It would look like this: 30.1 k ohms, 8123
PSIG. This means that if an external resistor of 30.1 k ohms resistance
were placed between the excitation positive (+) wire and signal positive (+)
wire an input si nal equivalent to 8123
signal positive +) and the signal negative
PROCEDURE
5.2
-
common
-
normally closed
(-)
-
negative
-
positive (+) signal
-
positive (+) signal connection (green)
(-)
-
negative
-
positive (+) excitation (red)
-
negative
?
signal connection (white)
(-)
excitation (black)
-
ZERO AND SPAN
vrrtually
eliminated by using the zero adjustment
signal
PSIG
will be simulated between the
(-)
wires.
ressure standard
P
he
span would
The following is a typical adjustment procedure:
ALL CALIBRATION ADJUSTMENTS
TRANSDUCERS UNDER NO LOAD AND AT OPERATING TEMPERATURE.
1.
Power the instrument.
2.
With zero pressure on the transducer, adjust the zero potentiometer to
obtain a zero reading.
3.
Push and hold the calibration selector switch to the left while adjusting
the span potentiometer until the correct calibration pressure is
obtained.
4.
Release the calibration switch and recheck the zero reading. If
incorrect, repeat Steps 2 through 4.
SHOULD BE PERFORMED WITH THE
DP409
5.
The electrical zero may be checked any time the transducer is at zero
pressure. This may be necessary after heat-up to correct any thermal
zero shift of the transducer.
NOTE
DO NOT CHANGE THE SPAN CALIBRATION WHEN THERE IS
PRESSURE ON THE TRANSDUCER. IF THIS IS DONE, THE
PRESSURE READING MAY
BE IN ERROR.
DP409A
-
5.3 ADJUSTMENTS
DP409A
The
one relay to trigger an auxiliary alarm, corrective action can be taken before
mandatory shut-down is reached. The second relay circuit can then be used
for mandatory shut-down.
CONTROL 1
1.
Push and hold the control selector switch to the right.
2.
Adjust the Control 1 potentiometer until the desired control pressure is
displayed on the indicator.
3.
Release the selector toggle switch.
CONTROL 2
1.
Push and hold the control selector switch to the right.
2.
Adjust the Control 2 potentiometer until the desired control pressure is
displayed on the indicator.
3.
Release the selector toggle switch.
SECTION 6 OPTION SWITCH SETTINGS
6.1 AMPLIFIER BOARD ON
Figure 6-1 shows the location of DS4 and DS5 on the Amplifier Board.
provides two separate setpoints circuits and relays. By using
CONTROL SETPOINTS
DP409/DP409A
El
pmm l
DS5
I
m l
DS4
I
III
b
I
f-
Figure 6-1. Amplifier Board
6
DP409
.l
Transducer Sensitivity
6.1
Controlled by Switch 2 of
Dued
ble:
Therefore, Switch 1 is ON for Filter ON and Switch 2 is ON for
and all the rest are OFF. Refer to the figure below.
or&~,&
(mV/V)
Filter
DS5
6.1.2 Calibration Shunt Resistor Switch
com&le
DS5-->
DS5-->
DS5-->
Controlled by Switch 3 of
Controlled by Switch 4 of
Controlled by Switch 5 of
*
.
Dvnrsco
ale
A.
All switches are in the OFF position.
Switch DS5 (on Amplifier Board)
PI
-
mV/V
~2.5
DS5-->
ON: Transducer
shunt
DS5
200 k Cal
54.9 k Cal
30.1 k Cal
ca
Refer to the figure below.
ON
oum
less than
1
Filter
<2.5rnVN
2
3 200 k ohm
54.9kohm
4
5 30.1 k ohm
(on Amplifier Board)
..
DS5
~2.5
-
OFFmVN
3
5
mVN
~2.5
(OMEGA)
mVN.
i%~
;
o;pgq
3011
5
k ohm (OMEGA)
1 2 3 4 5
n Shunt Calibration Resistor 30.1 k
Therefore, Switch 5 is ON for 30.1 k ohm. Refer to the figure below.
DS5
111~1~1111~~11111111~~~~~~~~
I
Caj
DOWN:
IS CON POSITION IS UP -- OFF POSITION
111~11111~1111111111llllllll
7
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