Omega DPL53 User guide

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DPL53 Digital Display

user manual

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DPL53

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M-3334 09/05

1.0: Index

Section Title Page

1.0 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

2.0 Safety Summary . . . . . . . . . . . . . . . . . . . . . . .2

3.0 Handling and Maintenance . . . . . . . . . . . . . .3

4.0 Installation into a panel . . . . . . . . . . . . . . . . .4

4.1 Installation Instructions . . . . . . . . . . . . . . . . . .4

4.2 Installation Dimensions . . . . . . . . . . . . . . . . .5

5.0 Using the Button Controls . . . . . . . . . . . . . . .6

6.0 Setup Options . . . . . . . . . . . . . . . . . . . . . . . .7

6.1 Transducer Connection to DPL53 . . . . . . . . .7

6.2 LDVT Sensitivity, Stroke Length, Excitation

Voltage and Frequency . . . . . . . . . . . . . . . . .8

6.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . .13

6.4 Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

7.0 Description of the DPL53 Functions . . . . . . .19

7.1 Configuring the Display . . . . . . . . . . . . . . . . .19

7.2 LVDT Configuration . . . . . . . . . . . . . . . . . . . .21

7.3 Null Position . . . . . . . . . . . . . . . . . . . . . . . . . .23

Section Title Page

7.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . .23

7.5 Scaling option . . . . . . . . . . . . . . . . . . . . . . . .24

7.6 Configuring Alarms . . . . . . . . . . . . . . . . . . . .24

7.7 Analogue Output . . . . . . . . . . . . . . . . . . . . . .27

7.8 Configuring Serial Communications . . . . . . .29

7.9 Status Logic Inputs . . . . . . . . . . . . . . . . . . . .30

7.10 Configuring Function Keys . . . . . . . . . . . . . .33

7.11 System Options . . . . . . . . . . . . . . . . . . . . . .34

8.0 RS232 Communications with DPL53 . . . . . .37

9.0 DPL53 Messages . . . . . . . . . . . . . . . . . . . . .46

9.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . .46

9.2 Alarm Messages . . . . . . . . . . . . . . . . . . . . . .47

Appendix A Control Panel Connections . . . . . . . . . .48

Appendix B DPL53 Menu Options . . . . . . . . . . . . . .49

Appendix C Product Specification . . . . . . . . . . . . . .51

Appendix D Memory Locations . . . . . . . . . . . . . . . . .52

1.0 Index

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M-3334 09/05DPL53

2.0: Safety Summary

Terms in this Handbook

WARNING statements identify conditions or

practices that could result in personal injury or loss

of life.

CAUTION statements identify conditions or practices

that could result in damage to the equipment or

other property.

Symbols in this manual

This symbol identifies where cautionary or other

safety related information is to be found.

WARNINGS:

Do not operate in an explosive atmosphere

To avoid explosion, do not operate this equipment in

an explosive atmosphere.

Installation and Removal

The DPL53 is designed for installation in an

enclosure which provides adequate precaution

against electric shock. Access to power terminals

should be restricted to authorised skilled personnel

only.

Application of supply voltages higher than those for

which the instrument is intended may compromise

safety and cause permanent damage.

NOTES:

This equipment contains no user serviceable parts

This equipment must be returned to your Omega

dealer for all servicing and repair.

2.0: Safety Summary

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M-3334 09/05DPL53

3.0: Handling and Maintenance

The DPL53 is a precision instrument and should be

handled with care.

The DPL53 is designed to be maintenance free.

Contacts with solvents should be avoided. Any attempt

to dismantle the DPL53 or the LVDT transducer will

invalidate the warranty.

There are no user accessible points.

3.0: Handling & Maintenance

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4.0: Installation into a Panel

4.1 Installation Instructions

Warnings

1. On installing or removing the DPL53 you must

be aware of any hazardous equipments or

materials in the vicinity. Make sure that any

equipment into which the DPL53 system is to

be installed is switched off and made safe.

2. All connections to the terminal should be made

using ferrules to give reliability and prevent

short circuits between adjacent terminals.

Cautions

1. Avoid installing the DPL53 close to switch gear,

contactors or motor starters.

2. Do not place signal and power supply wiring in

the same loom as the DPL53 wiring.

3. Use screened cables for all leads, with the

screen earthed at one end only.

Panel Mounting

• Ensure that there is sufficient space behind the

relevant instrument panel for the DPL53 and its

cabling (see section 4.2 for dimensions).

• Cut out the panel aperture to the dimensions shown.

• Slide the rubber seal over the unit, and push it

forward until it sits behind the front lip of the unit.

• Working from behind the panel, with the box fully

located, fit the side brackets to the studs and slide

them forward toward the panel until they lock into

place.

• Screw the brackets to the panel.

Caution

Do not overtighten the screws as this may

damage the case of the instrument.

4.0: Installation into a Panel

DPL53

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4.0: Installation into a Panel (Continued)

4.2 Installation Dimensions

4.0: Installation into a Panel

DPL53

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M-3334 09/05

5.0: Using the Button Controls

KEY TO BUTTONS:-

There are FOUR levels of button control

NEXT

DOWN

RESET

UP

ENTER

5.0: Using the Button Controls

DPL53

The complete chart showing all button indications is
shown in Appendix A.

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M-3334 09/05

6.0: Setup Options

6.1 Transducer Connection to DPL53

The DPL53 works with the range LVDT transducers from
Omega. Below are the details on how to connect the
transducer to the DPL53

6.0: Setup Options

DPL53

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M-3334 09/05

6.0: Setup Options

6.2 LVDT Sensitivity, Stroke Length, Excitation Voltage and Frequency

The process for LVDT sensitivity and stroke length depends on the availability of data.

A. If the sensitivity and stroke length are known (for example, supplied with the system on data sheets)

then the data is entered as shown in sub-menu A.

Sub-Menu A - If sensitivity and stroke length are known.

B. If the sensitivity and stroke length are unknown then the Auto-on option is selected as shown in sub-menu B.

6.0: Setup Options

DPL53

Sub-Menu B - If sensitivity and stroke length are unknown.

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6.0: Setup Options

6.2 Setting the LVDT Sensitivity, Stroke Length, Excitation Voltage and Frequency

With reference to “Using the Button Controls” (section 5) and to the full menu in Appendix B, proceed to set the

sensitivity, stroke length, excitation voltage and frequency as follows:-

Action Button Action Display Additional Display

Number Information

1. Press and hold for 5 seconds

2. Press three times

3. Press and release

4. Press and release

5. Press and release

If the sensitivity and stroke length are known.

Press and release : Go to action number 6

If the sensitivity and stroke length are unknown

Press and release Note: Toggles

Press and release between On and OFF setting

6.0: Setup Options

Press and release

Press and release : Go to action number 18

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6.0: Setup Options

6.2 Setting the LVDT Sensitivity, Stroke Length, Excitation Voltage and Frequency cont’d

To change the setting to a different Sensitivity, (for example, a transducer, at 200 mV/V/mm).

Action Button Action Display Additional Display

Number Information

6. Press and release

7. Press and release

8. Press and release Example figure only
(with right hand figure flashing

9. Press and release four times moves flashing figure to the left

10. Press and release two times reduces flashing number from 4 to 2

11. Press and release once decimal point flashes

12. Press and release once moves the decimal point one place to the
right

13. Press and release once

14. Press and release

15. Press and release default stroke setting

16. Repeat actions 11 to 14 to input the transducer stroke length setting.

6.0: Setup Options

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M-3334 09/05DPL53

6.0: Setup Options

6.2 Setting the LVDT Sensitivity, Stroke Length, Excitation Voltage and Frequency cont’d

Action Button Action Display Additional Display

Number Information

17. Press and release

Excitation Voltage

18. Press and release

19. Press and release The two options are 3V AC and 5V AC

The default is 3V. To obtain 5V

press

20. Press and release

Excitation Frequency

21. Press and release

22. Press and release The two options are 2.5KHz and 5KHz

The default is 2.5KHz. To obtain 5KHz

press

6.0: Setup Options

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M-3334 09/05DPL53

6.0: Setup Options

6.2 Setting the LVDT Sensitivity, Stroke Length, Excitation Voltage and Frequency cont’d

Action Button Action Display Additional Display

Number Information

Return to Level 1

23. Press and release

24. Press and release

25. Press and release three times Returns to main display

6.0: Setup Options

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M-3334 09/05DPL53

6.0: Setup Options

6.3 Calibration

Calibration is the registering of the LVDT transducer

minimum and maximum displacement position into the

DPL53 display unit.

Before proceeding with the calibration, leave the power

on for 30 minutes.

The procedure given is for an example of a step gauge,

with low and high settings of 0.00 mm and 10.0 mm

respectively.

With reference to the Indicator Chart in Section 5 and

Appendix B, calibrate the LVDT transducer as in the

following table.

6.0: Setup Options

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6.0: Setup Options

6.3 Calibration cont’d

Action Button/ Action Display Additional Display
Number Step gauge Information

1. Press and hold for 5 seconds

2. Press three times

3. Press and release

4. Press and release 3 times

5. Press and release

6 Step gauge Set to zero (page 15)

7 Press and release for three seconds then

8 Step gauge Set to high point (eg; 10 mm) for three seconds then

(page 15)

9 Press and release twice returns to main display

6.0: Setup Options

DPL53

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6.0: Setup Options

6.3 Calibration cont’d

6.0: Setup Options

DPL53

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M-3334 09/05

6.0: Setup Options

6.3 Calibration cont’d

Calibration Error Codes

The instrument has detected an error

during calibration caused by the

output of the LVDT being greater than the maximum

positive input level of the instrument at the specified

sensitivity.

The instrument has detected an error

during calibration caused by the

output of the LVDT being lower than the specified

sensitivity.

The instrument measured the same

output from the LVDT at both

calibration points. (High = Low).

6.0: Setup Options

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M-3334 09/05DPL53

6.0: Setup Options

6.4 Scaling

Scaling is to set the display to show the correct

displacement for your LVDT, the LOW and HIGH display

values need to be defined. The procedure given is for

an example of scaling of between a minimum of 95 mm

and a maximum of 105 mm.

Action Button/ Action Display Additional Display
Number Micrometer Information

1 Press and hold for 5 seconds

2 Press three times

3 Press and release once

4 Press and release four times

5 Press and release once

6 Press and release once

assumed example with right hand number flashing

To set the lower figure (for example 95)

With reference to the Indicator Chart shown in Section 5

(Using Button Controls) and Appendix B, scale the

LVDT transducer as in the example table below:-

7 Press and release four times moves flashing number to the left

6.0: Setup Options

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M-3334 09/05DPL53

6.0: Setup Options

6.4 Scaling cont’d

Action Button/ Action Display Additional Display

Number Micrometer Information

8 Press and release eight times increases the flashing number from 1 to 9

9 Press and release four times moves flashing number to second left

10 Press and release five times increases flashing number from 0 to 5

11 Press and release ‘n’ times until decimal point flashes

12 Press and release once moves decimal point one place to the right

13 Press and release once

To set the upper figure (for example 105)

14 Press and release once

15 Press and release once

16 Press the buttons in a similar

manner to actions 7 to 13 to obtain

17 Press and release once

18 Press and release 3 times returns to main display

6.0: Setup Options

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M-3334 09/05DPL53

7.0: Description of the DPL53 Functions

This chapter describes the functions which the DPL53 can carry out. Each section is headed with Level 2 menu option
(Refer to 5.0 Using the Button Controls).

7.1 Configuring the Display

Display Function

Decimal Point Position

Display Update Rate

Display Filtering

Least Significant Digit Zero

7.0 Description of DPL53 Functions

DPL53

Description

Allows the position of the decimal point to be fixed or
auto ranging. The decimal point may be fixed to give 0,
1, 2, 3 or 4 digits after the decimal point. The default is
1 decimal point.

Allows the update rate of the display to be set from
every 0.1 seconds to 0.5 seconds. The options are 2, 4
or 10Hz, the default setting is 2Hz.

Used to set up filtering of displayed values. The time
constant of the filter entered in seconds. The default
value is zero (no display filtering).

When set to ON the right hand digit only displays zero
during normal running. The default is OFF.

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7.0: Description of the DPL53 Functions

7.1 Configuring the Display. cont’d

Display Function

Display Negative Numbers

Leading Zero Suppression

Brilliance

Font

Test

7.0 Description of DPL53 Functions

DPL53

Description

Allows the display of negative numbers to be enabled
(ON) or disabled (OFF). The default setting is negative
numbers ON.

Allows leading zeros to be displayed. When ON the
leading zeros are not displayed. The default is ON.

Allows the brightness of the display to be adjusted in
the range 1 to 4. The default setting is 4 (highest
intensity setting).

One of two fonts for the display of numerals may be
selected to allow compatibility with some older
instruments. The default font is 1.

Performs a display test which illuminates all display
digits and segments (8.8.8.8.8.) when the enter button
is pressed.

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M-3334 09/05

7.0: Description of the DPL53 Functions

7.2 LVDT Configuration

Before any calibration or scaling operations are performed some operating parameters related to the use of the
particular LVDT need to be set. These parameters are all set up from the input menu

Display Function

Automatic Gain Selection

Sensitivity

Stroke

7.0 Description of DPL53 Functions

Description

Allows the instrument to set its gain automatically by
determining the sensitivity of the attached LVDT during
Calibration. The options are Automatic Gain Selection
Enabled (ON) or disabled (OFF), this is the default
state.
Note: When the AUTO option is set to ON. The sesitivity
and stroke options will not be accessible.

Value is entered to allow the gain of the measurement
input of the instrument to be determined from the
specified sensitivity of the LVDT. Details of the
sensitivity of your LVDT should be in the documentation
supplied.

Allows the stroke of the LVDT to be entered as a value
directly in mm. In order to determine the appropriate
gain setting. The default stroke setting is 100.0mm.

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M-3334 09/05DPL53

7.0: Description of the DPL53 Functions

7.2 LVDT Configuration cont’d

Display Function

Excitation Voltage

Excitation Frequency

Description

Selects the correct output voltage for excitation for the
LVDT. The appropriate voltage to use will be specified
in the LVDT documentation. There are two options 3V
AC and 5V AC (rms.), the default setting is 3V.

Sets the correct excitation frequency as specified in the
LVDT documentation. The options are 2.5KHz or 5KHz.
The default is 2.5KHz.

7.0 Description of DPL53 Functions

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7.0: Description of the DPL53 Functions

7.3 Null Position
This function allows the user to locate the midpoint of the LVDT’s measurement range (Null Point).

Display Function

Null Position

7.4 Calibration

This menu option is described in more detail in Section 6.3 Calibration.

Display Function

Low Input

Wait

High Input

High=Low

7.0 Description of DPL53 Functions

Description

The value will be displayed ‘FLASHING’. The closer the
value to zero, the nearer the LVDT is to its ‘NULL
POSITION’.

Description

Allows unit to calibrate to the minimum displacement
position of the LVDT.

While the low and high input positions are being
calibrated, ‘wait’ is displayed.

When wait elapses ‘high input’ is displayed and the
LVDT is set to its maximum displacement position.

The instrument measured the same output from the
LVDT at both calibration points.

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M-3334 09/05DPL53

7.0: Description of the DPL53 Functions

7.5 Scaling Option

This menu option is described in more detail in Section 6.4 Scaling.

Display Function

Description

Low (Zero) Display

High Scale Display

7.6 to Configuring Alarms

There are four Alarms; each can be configured separately. All Alarms default to OFF. Note 1: Only relay outputs can be
activated by the Alarms. Note 2: The alarms are not affected by the analogue output.

Display Function

Alarm Type

Setpoint

7.0 Description of DPL53 Functions

DPL53

The minimum displacement display which corresponds
to the Low calibration point ( L - i P). Default is zero.

The maximum displacement display which corresponds
to the High calibration point ( H - i P ). Default is 100.0.

Description

Options are none (OFF), high, low and deviation. Alarm
1 and 3 default to high and Alarm 2 and 4 default to low.

There are four setpoints, one for each of the four
alarms. Each set point may be set to any value within
the display range of the instrument i.e. -19999 to 99999.
The default setpoints are 99999 for Alarm 1 and Alarm 3
and -19999 for Alarm 2 and Alarm 4.

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M-3334 09/05

7.0: Description of the DPL53 Functions

7.6 to cont’d

Display Function

Deviation Setpoints

Latching

Output

7.0 Description of DPL53 Functions

DPL53

Description

This allows the difference between the alarm setpoint
and the high and low deviation levels to be defined. The
default setting for both is zero. These menu options are
only displayed (and valid) when the alarm type is set to
deviation.

All alarms may be set to latched (ON) or non-latched
(OFF). When alarms are set to latched then the alarm
indication and any associated output will remain in the
active state even when the alarm condition has cleared.
Latched alarms must be acknowledged to clear
indications and outputs to their inactive (non-alarms)
states. To acknowledge an alarm; either press the UP
and DOWN arrow keys together or configure one of the
two status inputs as an alarm acknowledge (ACK). The
default setting is OFF (non-latching). The alarm
condition must be cleared before the alarm can be
acknowledged.

Allows you to specify which output is activated when the
alarm condition is valid. The dual relay options are OP­1 (Relay 1) or OP-2 (Relay 2).

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7.0: Description of the DPL53 Functions

7.6 to cont’d

Display Function

Delay

Hysteresis

Front Panel Edit

Message Display

7.0 Description of DPL53 Functions

DPL53

Description

Allow the on and off delay times for each of the alarms
to be defined. The on delay defines the time that the
alarm condition must be present before the alarm is
activated. The off delay defines the time, that the alarm
condition is cleared before the alarm is deactivated.
The default setting for both the on and off delay is zero.

Define the difference between the set point and the
point at which the alarm is activated or deactivated.
The on and off Hysteresis may be specified separately
above and below the setpoint.

When this facility is ON the operator may access the
alarm setpoints from the front panel by pressing the
DOWN arrow key and without having to enter the
configuration menus. The default is ON.

This parameter allows you to define whether alarm
messages are displayed (ON) or not (OFF). The default
setting is ON.

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M-3334 09/05

7.0: Description of the DPL53 Functions

7.7 Analogue Output

Display Function

Linked Setpoints

(Alarm menu 3 and 4 only)

Output Type

Signal Source

Low Scaling Point

7.0 Description of DPL53 Functions

DPL53

Description

This allows you to link setpoint 3 to setpoint 1, and
setpoint 4 to setpoint 2. When setpoints are linked,
setpoint 1 will automatically change to setpoint 3 values.
Changing setpoint 2 will change setpoint 4. The default
is OFF (No setpoint linking).

Allows the output to be set to 0-10V, 0-20mA or 4-20mA.
The default setting is 4-20mA.

Defines the source of the values to be output. The
source can be selected from the display value (inPt),
maximum or peak value (High), minimum value (LOU),
average value (Av) or a value received from the
communications interface (Conn). The default is inPt.

Defines the display value at which the output will reach
its minimum level ie: 4mA (4-20mA), 0mA (0-20mA) or
0V (0-10V) dependent on analogue output type selected
above. The default value is 0%.

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M-3334 09/05

7.0: Description of the DPL53 Functions

7.7 Analogue Output cont’d

Display Function

High Scaling Point

Damping

7.0 Description of DPL53 Functions

DPL53

Description

Defines the display value at which the output will reach
its maximum level ie: 20mA (0 or 4-20mA) or 10V (0­10V) dependent on analogue output type selected
above. The default value is 100%.

Output damping defines the time constant in seconds
for damping the output. This parameter is used to limit
the rate of change of the output and may be adjusted in
the range 0 to 999 seconds. The default is 0.

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7.0: Description of the DPL53 Functions

7.8 Configuring Serial Communications

The DPL53 can communicate with a master device via an RS232 interface. For more detailed information refer to 8.0
RS 232 Communication.

Display Function

Instrument Address

Baud Rate

Protection

Parity

Stop Bits

Transmit Delay

7.0 Description of DPL53 Functions

DPL53

Description

Defines the instrument address when using the
instrument in a multidrop system. The range of valid
addresses is 1 - 247. The default is 1.

Allows the baud rate to be selected. The options are
1200, 2400, 4800 and 9600. The default is 9600.

Allows the instrument parameter settings to be
protected against change from the serial interface (write
protection ON). The default is OFF.

Defines parity for all communications. The options are
even, odd or no parity. The default is Even.

Defines the number of stop bits, 1 or 2.
The default is 1.

Add a delay, in milliseconds, before the DPL53
responds to any received commands.

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7.0: Description of the DPL53 Functions

7.9 Status Logic Inputs

The DPL53 provides two status (logic) inputs which can be assigned to perform one or more functions when activated.
All functions are started when there is a low on the status input i.e. placing a short across the input (from a switch or
relay). The calibration function is started when there is a transition from in-active to active state on the input.

Display Function

Alarm Acknowledge

Alarm Disable

Displays

Reset

7.0 Description of DPL53 Functions

DPL53

Description

Clears all latched alarms which are no longer in an
alarm condition. The default is OFF.

Disables all alarms when the status inputs is active.
The default is OFF.

Allows any one of the following to be displayed whilst
the status input is active: Lamp test, the average, low
or high values, or display hold. When the status input is
inactive the normal measured value is displayed. The
default for this is NONE.

This resets the High (peak), Low (minimum) and
Average values to the current measured value. The
default for this option is OFF.

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7.0: Description of the DPL53 Functions

7.9 Status Logic Inputs cont’d

Display Function

Front Panel Keypad Disable

Analogue Output Hold

Auto Fast Calibration

Zeroing

Tare

7.0 Description of DPL53 Functions

DPL53

Description

Disables the front panel keys, the default state is OFF.

This allows the analogue output to be held at a (Frozen)
level. The default state is OFF.

This is used to initiate the automatic calibration process.
The process is started when the status input is
activated. The default for this option is OFF.

This sets the measured and displayed values to Zero
(0.000) permanently (or until the instrument is
defaulted), removing any offset errors from the system.

This tares the measured value subtracting a fixed
amount from all subsequent measurements. The
default is ON.

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7.0: Description of the DPL53 Functions

7.9 Status Logic Inputs cont’d

Display Function

Status Message Display

7.0 Description of DPL53 Functions

DPL53

Description

This enables or disables the display of messages
related to the status input function. When ON
messages are displayed alternately with value being
displayed ie: if the unit is displaying the high value, then
the high value is displayed flashing with the message
‘HiGH’. This indicates to the user that the current input
value was not being displayed. The default is ON.

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M-3334 09/05

7.0: Description of the DPL53 Functions

7.10 Configuring Function Keys

There are 2 function keys which can be configured. Function Key 1 and Function Key 2 . The following
functions may be assigned to either or both keys unless stated.

Display Function

Reset

Auto Fast Calibration

Tare

7.0 Description of DPL53 Functions

DPL53

Description

If ON, the function button will reset the High (Maximum),
Low (minimum) and Average values to the current
measured value. The default is OFF.

When ON then the function key 1 or 2 will initiate the
automatic calibration process. When pressed the
display will flash the message ‘CAL’. The key must be
pressed again whilst the display is flashing to perform
the function. The default state is OFF.

Tares the measured value, subtracting a fixed amount
from all subsequent measurements. The value
subtracted is the current value when the key is pressed.
When the function is assigned to a function key,
pressing the key once will activate the tare (relative
displacement) measurement. Pressing the key again
while tare is active will deactivate the function. Default
is ON.

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M-3334 09/05

7.0: Description of the DPL53 Functions

7.10 Configuring Function Keys cont’d

Display Function

Zeroing

Displays

7.0 Description of DPL53 Functions

DPL53

Description

This sets the measured and displayed values to Zero
(0.000) permanently (or until the instrument is defaulted
or calibrated), removing any offset errors from the
system. When assigned to a function key pressing the
key once will cause the DPL53 to display ‘ZEro’
flashing. To perform the ‘Zero’ the function key must
be pressed again, to confirm the operation, (the display
will flash for approximately 5 seconds). Once
confirmed, the ‘Zero’ will be performed immediately.
The default is OFF.

Allows any one of the following to be displayed whilst
the Function key is pressed: Lamp test, the average,
low or high values, or display hold. When the key is
released normal display is returned. The default is
NONE (no display function).

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M-3334 09/05

7.0: Description of the DPL53 Functions

7.11 System Options

Display Function

Password

Averaging Time

Default

7.0 Description of DPL53 Functions

DPL53

Description

Enter any value between 1 and 99999. When enabled
the configuration menu cannot be accessed without first
entering the password number. The default value is 0.
(No Password).

This average value is not a true arithmetic average. The
default is 1 (second).

Allows the unit to reset back to its factory default
settings. Select ON to default the instrument. It will
automatically revert to OFF when the instrument is
defaulted.

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M-3334 09/05

7.0: Description of the DPL53 Functions

7.11 System Options cont’d

Display Function

Time-out

Reset

Type

Version

7.0 Description of DPL53 Functions

DPL53

Description

This defines the time that the unit will remain in
configuration mode when there is no key activity. If
there are no key presses within the specified time
period the unit will return to normal operation. the
default time-out is 60 seconds and is adjustable
between 30 to 300 seconds. This is disabled during the
Calibration sequence.

Allows the unit to be reset. The reset process, when
activated, will display Wait and start the sequence. The
unit will reset back to its factory default settings, and go
through the power-up sequence.

Shows the type of readout ie: DPL53.

Shows the version of the DPL53.

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M-3334 09/05

8.0: RS232 Communications with DPL53

8.1 Overview

This language has been developed for communication

between the DPL53 and the master device via an RS232

communications interface. The master device could be

a computer, which would be able to read from and write

to, memory locations within the DPL53.

There are two types of memory locations, analogue and

logic. Analogue memory locations can be set to any

value within a specified range. Logic locations can be

set to either ON or OFF. A full list of the memory

location within the DPL53 are listed in Appendix D.

Memory Locations.

8.2 DPL53 Connections to RS232 communication

The connections required to interface the DPL53 to a

RS232 interface are shown below.

RS232 connection to a Master device (Computer).

8.0: R232 Communications with DPL53

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M-3334 09/05DPL53

8.0: RS232 Communications with DPL53

A screened twisted pair cable should be used for all

applications requiring cable lengths greater than 3m.

The screen of the cable should be connected to the

Frame Ground or Ground connection of the Master

device.

Several DPL53's can be connected to a computer, each

DPL53 with its own identification number.

8.3 DPL53 Settings for RS232 communication

The default setting for the DPL53 are as follows:

Parameter Default Settings

Communications Address 1

Baud Rate 9600

Write Protect Off

Parity Even

Stop Bits 1 Bit

Note: The data length for the RS232 is set to 7 bits and

can not be changed.

The parameters Communications address, Baud rate,

Write Protect, Parity and Stop Bits can be changed.

Refer to section 7.8 Configuring Serial Communications.

8.0: R232 Communications with DPL53

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M-3334 09/05DPL53

8.0: RS232 Communications with DPL53

APPLICATION NOTE:

Simple connection between DPL53 Digital Display and

Master device. (Computer).

Connection between DPL53 Digital Display and Master

device. (Computer).

(Using NO flow control between Master device (i.e.

PC)).

8.0: R232 Communications with DPL53

(Setting Master device which has flow control signals).

39

M-3334 09/05DPL53

8.0: RS232 Communications with DPL53

8.4 General format of commands

[address] is the communications address of the

All commands sent to the DPL53 must be written in

upper case.

[command] is a DPL53 command.

The syntax for a command to the DPL53 is as follows:

[location] is the DPL53 internal analogue or logic

;E_[address]_[command]_[location]_[data]<CR><LF>

DPL53, in the range 1 to 247.

location.

where:

; must start every command. If there is a ";" in the

middle of a command, the DPL53 will ignore

everything before the ";". You can abandon a

command by typing ";" at the end of it.

E is optional. This will cause the DPL53 to echo the

command before responding.

_ indicates a SPACE.

8.0: R232 Communications with DPL53

[data] for read commands (RA and RL) this

parameter specifies how many analogue or

logic locations are to be read. For write

commands (SA and SL), defines how many

to be written to the specified analogue or

logic location.

<CR> is a carriage return.

<LR> is a line feed.

40

M-3334 09/05DPL53

8.0: RS232 Communications with DPL53

8.5 Commands

8.5.1 RA command

Description.

Read an analogue location within the DPL53.

Example Command. ;E_001_RA_2_1<CR><LF>

Part Description

;E starts the message and requests the

DPL53 to echo the command before

replying.

001 is the communications address of the

DPL53.

RA_2_1 is the command to read the value from

1 analogue location 2.

<CR><LF> marks the end of the command.

Reply.

;E_001_RA_2_1_+123.45<CR><LF>

Part Description

;E_001_RA_2_1 is the echo of the original command.

+123.45 is the value from location 2.

8.0: R232 Communications with DPL53

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M-3334 09/05DPL53

8.0: RS232 Communications with DPL53

8.5.2 SA Command

Description.

Set an analogue location within the DPL53.

Example Command. ;001_SA_63_100<CR><LF>

Part Description

;001 is the communications address of the

DPL53.

SA_63_100 is the command to set the value of

analogue location 63 to 100.

<CR><LF> marks the end of the command.

Reply. OK<CR><LF>

Part Description

; due to there being no ;E, the echo of

the original command.

OK message reply from DPL53, saying

message was received and understood.

8.0: R232 Communications with DPL53

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M-3334 09/05DPL53

8.0: RS232 Communications with DPL53

8.5.3 RL Command

Description.

Read the state of a logic location within the DPL53.

Example Command. ;E_001_RL_48_1<CR><LF>

Part Description

;E starts the message and requests the

DPL53 to echo the command before

replying.

001 is the communications address of the

DPL53.

RL_48_1 is the command to read the values from

location 48.

<CR><LF> marks the end of the command.

Reply. ;E_001_RL_48_1_ON<CR><LF>

Part Description

;E_001_RL_48_1 is the echo of the original command.

ON is the value from location 48.

8.0: R232 Communications with DPL53

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M-3334 09/05DPL53

8.0: RS232 Communications with DPL53

8.5.4 SL Command

Description.

Sets the state of a logic location within the DPL53.

Example Command. ;001_SL_140_ON<CR><LF>

Part Description

;001 is the communications address of the

DPL53.

SL_140_ON is the command to set the logic

locations state to ON at location 140.

<CR><LF> marks the end of the command.

Reply. OK<CR><LF>

Part Description

; due to there being no ;E, the echo of

the original command.

OK message reply from DPL53, saying

message was received and understood.

8.0: R232 Communications with DPL53

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M-3334 09/05DPL53

8.0: RS232 Communications with DPL53

8.6 Error Messages

If the command is incorrect, the DPL53 returns a # followed by an error code. The error codes are as follows.

Error Code Meaning Example/Explanation

1 Invalid message ;E_001_RS_31_3<CR><LF>

"RS" is not a valid command.

2 Invalid/Read only location ;E_001_SL_33ON<CR><LF>

Logic location 33 is read only location.

3 Non existent location ;E_001_RA_310_1<CR><LF>

Analogue location 310 does not exist.

4 Invalid value ;E_001_RA_21_ON<CR><LF>

ON is not a valid value for analogue location 21.

5 Unaccepted value The DPL53 is inside a Configuration Menu.

6 Instrument error The DPL53 is not operating correctly.

7 Reserved location ;E_001_SA_91_100<CR><LF>

Analogue location 92 is a reserved location.

8 Too many data requests The DPL53 is still busy dealing with previous commands.

9 Too many arguments ;E_001_RA_SA_31_3<CR><LF>

There are two commands present, "RA" and "SA".

8.0: R232 Communications with DPL53

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M-3334 09/05DPL53

9.0: DPL53 Messages

9.1 Error Messages

These messages indicate that an error has

been detected in one of the instruments internal

memory areas as part of power up self test sequence.

The instrument has detected a problem

with the sensor resulting in an open circuit input, this

may be caused by a break in one of the leads from the

transducer or a fault in one of the transducer elements.

This indicates that the instrument has

detected a fault in its measurement circuitry.

The instrument has detected a problem or

error in its non volatile memory resulting in a loss of

calibration data.

Note: For any of the above error messages return the

instrument to the supplier.

9.0: DPL53 Messages

DPL53

The measured value is too large positively

to be displayed, or is above the specified input range.

The measured value is too low negatively

to be displayed, or is below the specified minimum

input for the selected range.

Note: For any of the above messages check instrument

settings.

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M-3334 09/05

9.0: DPL53 Messages

9.2 Alarm Messages

Alarm messages will be displayed alternately with the
normal display only one alarm message will be
displayed at any time.

Low alarm has been triggered on the indicated alarm.

eg: LoA3 = Low Alarm, Alarm 3.

High alarm has been triggered on the indicated alarm.

Deviation type alarm has been triggered on the

indicated alarm at the low deviation setpoint.

eg: Lod4 = Low Deviation Alarm, Alarm 4.

Deviation type alarm has been triggered on the

indicated alarm at the high deviation setpoint.

9.0: DPL53 Messages

DPL53

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M-3334 09/05

Appendix A: Control Panel Connections

Terminal No alarm

1 Relay 1 - Common
2 Relay 1 - Normally Open
3 Relay 1 - Normally Closed
4 Relay 2 - Common
5 Relay 2 - Normally Open
6 Relay 2 - Normally Closed
7 O/P DC
8 LVDT Primary

9 LVDT Primary
10 RS232 Tx
11 RS232 Gnd
12 RS232 Rx
13 N/C
14 Status (Logic) Input 2
15 Status (Logic) Input 1
16 Status Input Common (GND)
17 Power Input Neutral (-)
18 Power Input Live (+)
19 High Speed Analogue Output ­20 High Speed Analogue Output +
21 N/C
22 N/C
23 N/C
24 N/C
25 LVDT Secondary
26 LVDT Secondary

Appendix A: Connections

48

M-3334 09/05DPL53

Appendix B: DPL53 Menu Options (Part 1)

Appendix B:DPL53 Menu Options

DPL53

49

M-3334 09/05

Appendix B: DPL53 Menu Options (Part 2)

Appendix B:DPL53 Menu Options

50

M-3334 09/05DPL53

Appendix C: Specification for DPL53

Excitation

Voltage 3V AC rms. or 5V AC rms.

selectable
Frequency 2.5kHz or 5kHz selectable
Temperature drill (amplitude) <100ppm/°C

(frequency) <100ppm/°C

High Speed Analogue O/P

Output ±10V maximum
Response Output filter -3dB @ 125Hz

Analogue Output

Ranges 0-10V, 0-20mA or 4-20mA

selectable
Accuracy 0.2% of span
Temperature drift <100ppm/°C
Response 100% within 400mS
Resolution 0.05% (5mV or 0.01mA)

Supply 90 - 265V AC

50 - 60Hz
20VA max.

Operating Conditions

Ambient Temperature Storage -10°C to 70°C

(14° to 158°F)

Operating 10°C to 50°C

(50° to 122°F)

Humidity 10% to 95% Non-condensing

Input

ADC High precision Sigma Delta
Input range 0.05V rms. - 5V rms.
Resolution 18bit
Non Linearity <0.02%
Temperature drift <50PPM 1°C

(<50PPM 33.8°F)
Stability <0.01% FSO after 15 minutes
Input Impedance 100kW
Common mode rejection >150dB
Series mode rejection >70dB @ 50/60Hz

Appendix B:Specification for DPL53

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M-3334 09/05DPL53

Appendix D: Memory locations

A.1 Analogue Memory Locations.

(RW) = Read / Write (RO) = Read Only
(WO) = Write Only

Easy Recall

0 (RO) Instrument Type e.g. DPL53
1 (RO) Measured Value, Unfiltered
2 (RO) Display Value, Filtered
3 (WO) Comms Display Value

Factory info

4 (RO) Factory Options
5 (RO) Number of Relays o/p fitted
6 Reserved
7 (RO) First Four digits of Serial

(datecode)e.g.0398
8 (RO) Last Four digits of Serial code
9 (RO) Firmware version (Format 99.99 or 9.99)

10 (RO) Firmware creation date (Year)
11 (RO) Firmware creation date (Month)
12 (RO) Firmware creation date (Day)
13 (RO) Firmware creation date (Hour)
14 (RO) Firmware creation date (Minute)

15 (RO) Firmware creation date (Second)
16 (WO) Comms display value
17 (RO) Stack Percentage used

Factory Test

18 (RO) reason for reset: 0=power 1=cop2=com

3-13=error 14=syst/com
19 (RO) memory Leak record: 255=no error
20 (RO) MCU portA - analog o/p v/I selection, load

cell gain applied
21 (RO) MCU portD
22 (RO) MCU portE - keys and status inputs
23 (RO) MCU portG - relay/ttl outputs
24 (RO) raw load cell input mV/V
25 Reserved
26 Reserved
27 (RO) channel A as a 0..1 ratio of span
28 (RO) channel B as a 0..1 ratio of span
29 (RO) zero offset applied when activated by Zero

function key/autozero
30 (RO) tare offset applied when activated by Tare

function key
31 (RO) null value: %FSD distance from null point
32 (RO) timer. Incremented every 20mS. Rolls over

at 32767 to 0

Appendix D: Memory locations

52

M-3334 09/05DPL53

Appendix D: Memory locations

Realtime

33 (RO) analogue level on status1 (default 0 to

5000mV)

34 (RO) analogue level on status2 (default 0 to

5000mV)
35 (RO) Low Value
36 (RO) High Value
37 (RO) Average Value
38 (RO) unfiltered measured value
39 (RO) filtered displayed value
40 Reserved

ê

50 Reserved

Display setup

51 Reserved
52 Reserved
53 (RW) sorc:display source:

0=inpt,1=high,2=low,3=av,4=comm
54 (RW) dp: digits to right of decimal point; 0 to 4

or 5=auto

55 (RW) rate: display update

rate;0=2Hz,1=4Hz,2=10Hz

56 (RW) filt: display filter time; 0 to 999 sec (will be

0.0 to 99.9s)
57 (RW) bril: display Brilliance; 0 to 3, 3=brightest
58 Reserved

ê

61 Reserved

Input Setup

62 Reserved
63 (RW) sen: sensitivity mV/V/length_of_unit
64 (RW) stroke: in the same units of length used in

sensitivity

65 (RO) gain: load cell i/p GAIN;

0=x,1=x5,2=x10,3=x100

66 Reserved

ê

71 Reserved

Appendix D: Memory locations

53

M-3334 09/05DPL53

Appendix D: Memory locations

Scaling - for load cell input

72 Reserved (for user linearisation points)
73 (RW) Ldsp: Low Cal point display value (in units

of weight)
74 (RW) L-iP: Low Cal Point input value in mV/V
75 (RW) Hdsp: High Cal point display value (in

units of weight)
76 (RW) H-iP: High Cal point input value in mV/V

77 - 99 Reserved ( for User linearisation Cal. Points)

Analog Scaling setup

Sta1 Sta2

100 101 (RW) high cal point scaled level

(0_5000) default=5000 (for mV)

102 103 (RW) low cal point scaled level

(0_5000) default=0 (for mV)

104 105 (RW) high cal point input level (0 to

255) default=255 (255=5V)

106 107 Low cal point input level (0 to 255)

0=default (0=0V)
108 Reserved
109 Reserved

Alarm Number

1 2 3 4

110 125 140 155 (RW) type: 0=high 1-=low

2=dev 3=none

111 126 141 156 (RW) sp: septpoint -19999 to

99999

112 127 142 157 (RW) devh: deviation above

sp -19999 to 99999

113 128 143 158 (RW) devL: deviation below

sp -19999 to 99999

114 129 144 159 (RW) ondL: on delay 0 to

9999 s

115 130 145 160 (RW) ofdL: off delay 0 to

9999 s

116 131 146 161 (RW) onhy: on hysteresis -

19999 to 99999

117 132 147 162 (RW) ofhy: off hysteresis -

19999 to 99999

118 133 148 163 Reserved

ê ê ê ê

124 139 154 169 Reserved

Appendix D: Memory locations

54

M-3334 09/05DPL53

Appendix D: Memory locations

Analog Output setup

170 (RW) type: 0=0_10V 1=0_20mA (Low_high cal

point)default=2

171 (RW) sorc: 0=inpt 1=high 2=low 3=av

4=comm(a175) default=0

172 (RW) low: display value corresp.to low aout cal

point. Default=0

173 (RW) high: display value corresp.to high aout

cal point. Default=100

174 (RW) Damp: damping filter 0_999 s (to be: 0.0 to

99.9) default=0

175 (RW) REALTIME source of analog o/p when

type=4(=comm(a175))

176 Reserved

ê

181 Reserved
182 (RO) addr: instrument address 1_247 default=1
183 (RO) baud: baud rate 0=1200 1=2400 2=4800

3=9600 default=3

184 (RO) prty: Parity 0=odd 1=even 2=none default

= 1

185 Reserved

ê

196 Reserved

Status Input Number

1 2

197 201 (RW) disp: 0=none 1=hold 2=low

3=high 4=av 6=Ltst default=0

198 202 Reserved

ê ê

200 204 Reserved

205 Reserved

Function Key Action setup

1 2

206 210 (RW) disp: 0=none 1=hold 2=low

3=high 4=av 5=Ltst

207 211 Reserved

ê ê

209 213 Reserved

214 (RW) Avti: Period in seconds over which

average is taken default=1

215 (RW) tout: keypad inactivity timeout to Conf

mode exit default=60

216 Reserved

ê

Appendix D: Memory locations

55

M-3334 09/05DPL53

Appendix D: Memory locations

218 Reserved

Relay/TTL O/p - setup

219 221 223 225 (RW) puls:dely 0.1 to 4.9

secs default=0.5s

220 222 224 226 Reserved

D.2. Logic Memory Locations.

(RW) = Read / Write (RO) = Read Only
(WO) = Write Only

Factory Info

0 (RO) Config. Status: ON=in Config. Mode
1 (RO) Calibration Mode: ON=in Calibration Mode
2 (RO) Calibrated: ON=Calibration done or

defaulted

3 Reserved

ê

5 Reserved

Realtime Info

6 (RO) function key1 (leftmost) state:

ON=Pressed

7 (RO) funtion key2 (rightmost) state:

ON=Pressed
8 (RO) status input1 state: ON=connected
9 (RO) status input2 state: ON=connected

10 (RO) alarm1 state: ON=activated
11 (RO) alarm2 state: ON=activated
12 (RO) alarm3 state: ON=activated
13 (RO) alarm4 state: ON=activated
14 (RO) output1 relay state: ON=closed/activated
15 (RO) output2 relay state: ON=closed/activated
16 (RO) output3 relay state: ON=closed/activated
17 (RO) output4 relay state: ON=closed/activated
18 Reserved

ê

23 Reserved
24 (RO) calibration in progress: ON=busy

Appendix D: Memory locations

56

M-3334 09/05DPL53

Appendix D: Memory locations

Runtime Control

25 (RW) ON=Do FastCal. Repeat when clear while

L24 ON.
26 (RW) ON=Alarm Acknowledge
27 (RW) ON=Reset high, Low,av,control SP's, Pick

SP's
28 (RW) ON=Reset High display value only
29 (RW) ON=Reset Low display value only
30 (RW) ON=Reset Average display value only
31 (RW) ON=Perform Zero
32 (RW) ON=Undo Zero
33 (RW) ON=Perform Tare
34 (RW) ON=Un-Tare
35 Reserved

ê

41 Reserved

Scaling Control

42 (RW) ON=read L-iP (reads OFF when done -see

also L44)
43 (RW) ON=read H-iP (reads OFF when done -

see also L44)

44 (RW) ON=re-scale. Do when L-iP, H-iP,Hdsp and

Ldsp are ALL as required
45 Reserved (for User linearisation)
46 Reserved

Display setup

47 (RW) font:ON=Display font2, OFF=Display font1

default=OFF
48 (RW) 0sup: ON=Leading zeros blank

OFF=Leading zeros on default=ON
49 (RW) Lsd0: ON=Least signif. digit 0

OFF=normal default=OFF
50 (RW) neg: ON=neg display enable OFF=neg

values show 0 default=ON
51 Reserved

ê

54 Reserved

Input Setup

55 (RW) Hz: excitation frequency OFF=2.5kHz,

On=10kHz default=OFF
56 (RW) rms: excitation voltage OFF=1V, ON=3V

default=OFF

Appendix D: Memory locations

57

M-3334 09/05DPL53

Appendix D: Memory locations

57 (RW) Auto: ON=autogain on OFF=autogain off

default=OFF

58 (RW) ON=calculate new gain now based on

new L-iP &/or H-iP
59 Reserved
60 Reserved

Alarm setup

Al-1 Al-2 Al-3 Al-4 Function

61 71 81 91 (RW) O/P:1---: ON=relay O/p1

set by alarm Default=OFF

62 72 82 92 (RW) O/P:-2--: ON=relay O/p1

set by alarm Default=OFF
63 73 83 93 Reserved
64 74 84 94 Reserved
65 75 85 95 (RW) LtcH: ON=Latching

Default=OFF
66 76 86 96 (RW) Edit: ON=Panel Key edit

enabled Default=OFF
67 77 87 97 (RW) disp: ON=Warning

Message Default=ON
68 78 Reserved

88 98 (RW) L-SP: ON=Linked to

Alarm minus 2 default=OFF

69 79 89 99 Reserved
70 80 90 100 Reserved

Comms setup

101 (RW) ON=7 digits values from instrument

OFF=5 digits Default=OFF

102 (RW) Prot: ON=all analog/logic locations write

protected Default=OFF
103 (RO) StoP: ON=2 stop bits OFF=1 stop bit
104 Reserved

ê

111 Reserved

Status Input setup

112 125 (RW) tAre: ON=tare display

Default=OFF

113 126 (RW) Ack: ON=acknowledge all latched

alarms Default=OFF
114 127 (RW) Adbl: ON=disable alarms
115 128 (RW) rSEt: ON=reset

high/low/av/Control SP's Default=OFF

Appendix D: Memory locations

58

M-3334 09/05DPL53

Appendix D: Memory locations

116 129 (RW) Lock: ON=disable front panel keys

Default=OFF

117 130 (RW) hOLd: ON=hold the analogue

output value Default=OFF

118 131 (RW) ZerO: ON=zero display

Default=OFF

119 132 (RW) disP: ON=show STA? Display

Default=OFF

120 133 (RW) CAL: ON=begin fast cal (need>1

Activation Default=OFF

121 134 Reserved

ê ê

124 137 Reserved

Function Key Setup

1 (?) 2 (*) Function

138 146 (RW) rSEt: ON=reset

high/low/av/Control SP's default=OFF
139 147 (RW) tARe: ON=tare display
140 148 (RW) ZerO: ON=zero display
141 149 (RW) CAL: ON=do fastcal (need more

than 1 activation) default=OFF
142 150 Reserved

ê ê

145 153 Reserved

System setup

154 (RW) dFLt: ON=default instrument setup
155 (RW) rSEt: ON=Reset instrument (as on power

up)

156 Reserved

ê

159 Reserved

Relay Output Setup

160 165 170 175 (RW) tYPE: ON=true

OFF=false(inverted)
Default=ON

161 166 171 176 (RW) PulS.EnAb: ON=pulsed

OFF=normal Default=OFF
162 167 172 177 Reserved
163 168 173 178 Reserved
164 169 174 179 Reserved

Appendix D: Memory locations

59

M-3334 09/05DPL53

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and
workmanship for a period of 13 months from date of purchase. OMEGA Warranty adds
an additional one (1) month grace period to the normal one (1) year product
warranty to cover handling and shipping time. This ensures that OMEGA’s customers
receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s
Customer Service Department will issue an Authorized Return (AR) number immediately
upon phone or written request. Upon examination by OMEGA, if the unit is found to be
defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not
apply to defects resulting from any action of the purchaser, including but not limited to
mishandling, improper interfacing, operation outside of design limits, improper repair, or
unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having
been tampered with or shows evidence of having been damaged as a result of excessive
corrosion; or current, heat, moisture or vibration; improper specification; misapplication;
misuse or other operating conditions outside of OMEGA’s control. Components which
wear are not warranted, including but not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes
liability for any damages that result from the use of its products in accordance with
information provided by OMEGA, either verbal or written. OMEGA warrants only that the
parts manufactured by it will be as specified and free of defects. OMEGA MAKES NO
OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER,
EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES
INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The
remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA
with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the
component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be
used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear
installation or activity; or (2) in medical applications or used on humans. Should any
Product(s) be used in or with any nuclear installation or activity, medical application,
used on humans, or misused in any way, OMEGA assumes no responsibility as set
forth in our basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will
indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever
arising out of the use of the Product(s) in such a manner.

RETURN REQUESTS / INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service
Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER
MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S
CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS).
The assigned AR number should then be marked on the outside of the return package
and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper
packaging to prevent breakage in transit.

FOR W

ARRANTY RETURNS, please
have the following information available
BEFORE contacting OMEGA:

1. Purchase Order number under

which the product was
PURCHASED,

2. Model and serial number of the

product under warranty, and

3. Repair instructions and/or specific

problems relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an
improvement is possible. This affords our customers the latest in technology and
engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.

© Copyright 1998 OMEGA ENGINEERING, INC. All rights reserved. This document
may not be copied, photocopied, reproduced, translated, or reduced to any electronic
medium or machine-readable form, in whole or in part, without the prior written consent
of OMEGA ENGINEERING, INC.

FOR NON-WARRANTY REPAIRS,
consult OMEGA for current repair
charges. Have the following information
available BEFORE contacting OMEGA:

1. Purchase Order number to cover
the

COST of the repair,

2. Model and serial number of the

product, and

3. Repair instructions and/or specific

problems relative to the product.

DPL53

M-3334 09/05

Where Do I Find Everything I Need for

Process Measurement and Control?

TEMPERATURE

q

Thermocouple, RTD & Thermistor Probes, Connectors,

Panels & Assemblies

q

Wire: Thermocouple, RTD & Thermistor

q

Calibrators & Ice Point References

q

Recorders, Controllers & Process Monitors

q

Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

q

Transducers & Strain Gauges

q

Load Cells & Pressure Gauges

q

Displacement Transducers

q

Instrumentation & Accessories

OMEGA…Of Course!

DATA ACQUISITION

q

Data Acquisition & Engineering Software

q

Communications-Based Acquisition Systems

q

Plug-in Cards for Apple, IBM & Compatibles

q

Datalogging Systems

q

Recorders, Printers & Plotters

HEATERS

q

Heating Cable

q

Cartridge & Strip Heaters

q

Immersion & Band Heaters

q

Flexible Heaters

q

Laboratory Heaters

FLOW/LEVEL

q

Rotameters, Gas Mass Flowmeters & Flow Computers

q

Air Velocity Indicators

q

Turbine/Paddlewheel Systems

q

Totalizers & Batch Controllers

pH/CONDUCTIVITY

q

pH Electrodes, Testers & Accessories

q

Benchtop/Laboratory Meters

q

Controllers, Calibrators, Simulators & Pumps

q

Industrial pH & Conductivity Equipment

DPL53

ENVIRONMENTAL
MONITORING AND CONTROL

q

Metering & Control Instrumentation

q

Refractometers

q

Pumps & Tubing

q

Air, Soil & Water Monitors

q

Industrial Water & Wastewater Treatment

q

pH, Conductivity & Dissolved Oxygen Instruments

M-3334 09/05