Omega Products DPF51 User Manual

AC POWER WIRING

Connect the ac main power connections as shown below.

WARNING: Do not connect ac power to your meter until you
have completed all input and output connections. Failure to
do so may result in injury! This device must only be installed
electrically by specially trained electrician with
corresponding qualifications. The main power input to the
unit as well as the AC input signal to be measured must
agree with the wiring instruction.

The meter is factory set to the power specified by the customer at the
time of ordering. The voltage is printed on the label under Input
power.

To connect power to the unit, attach wires, as shown from the ~AC
power cord to the orange 3-pin female connector that is supplied with
the meter. Plug the female connector into the orange P1 (male)
connector at the rear of the meter.

DC POWER WIRING

The meter can be
configured at the
factory to operate on DC
non-isolated power. The
DC voltage option is
specified at the time of
ordering. An AC powered meter
cannot be converted to a DC
powered meter or vice versa.

To connect power to the unit, attach wires, as shown, to the orange
3-pin female connector that is supplied with the meter. Plug the female
connector into the orange P1 (male) connector at the rear of the
meter.

SIGNAL INPUT WIRING DPF52

SIGNAL INPUT WIRING DPF51

POWER AND SIGNAL INPUT

~

AC POWER = DC POWER

P1 DPF52

DPF51 & DPF53

DPF51 & DPF53

1 SIG HI (+S) SIG HI (+S) SIG HI (+S)
2 SIG LO (-S) SIG LO (-S) SIG LO (-S)
3 + Exc Hold Hold
4 - Exc Digital Return Digital Return

5 AC Earth GND (©) AC Earth GND (ý ) -DC (-)
6 AC Neutral (N) AC Neutral (N) + DC (+)
7 AC Line (L) AC Line (L) No Connection (N/C)

TOP VIEWSIDE VIEW

0.858 [21.80]

2.661

[67.60]

4.60

[116.8]

4.134

[105.00]

0.197
[5.00]

0.945 [24.00]

2.835

[72.00]

S3

S2

A

A

A

B

B

CCD

DE

S2

S3

S4

S4

SIGNAL

DISPLAY

SPAN

ZERO

POWER

W1W2 W3

1
2
3
4
5
6
7

RANGE SELECTION

DIMENSIONS

Voltage operation was configured per customer order. 115 and
230 Vac operation use the same transformer and may be reversed
with simple wiring installation.

Disconnect power before attempting to convert or remove the
unit.

You must remove the printed circuit board from the case in order to
change from 115 Vac to 230 Vac (and vice versa). These changes
must be performed by a qualified technician in order to avoid damage
to the unit and avoid personal electric shock.

INSTALLATION

1. Unpack and verify that all equipment has been received. If there
are any questions about the shipment, contact the service
department nearest you.

2. Cut or punch a hole in the panel where you want the meter to go.

3. Remove the lens by inserting a paper clip or small flat screwdriver
into the rounded corner of the lens and lift out.

4. Remove the two mounting screws from both sides of display. Pry
both sides of the mounting clamp out and down to remove it from
the case.

5. Insert the meter into the panel cutout and reinstall the mounting
clamp from the rear.

6. Reinstall the mounting screws to secure the meter into the panel.
Do not overtighten the screws.

7. Pop the lens back in, making sure the dull side of the lens faces
towards you.

TRANSFORMER # AC VOLTAGE INSTALL REMOVE

48131 115 Vac W1, W3 W2
48131 230 Vac W2 W1, W3

ELECTRICAL CONNECTIONS

SAFETY CONSIDERATIONS

This device is marked with the international Caution symbol. It is important to
read this manual before installing or commissioning this device as it contains
important information relating to Safety and EMC (Electromagnetic Compatibility).

Unpacking & Inspection

Unpack the instrument and inspect for obvious shipping damage. Do not attempt
to operate the unit if damage is found.

This instrument is a DIN rail mount device. Installation of this instrument should
be done by Qualified personnel. In order to ensure safe operation, the following
instructions should be followed.

This instrument has no power-on switch. An external switch or circuit-breaker shall be
included in the building installation as a disconnecting device. It shall be marked to indicate
this function, and it shall be in close proximity to the equipment within easy reach of the
operator. The switch or circuit-breaker shall not interrupt the Protective Conductor (Earth
wire), and it shall meet the relevant requirements of IEC 947Ð1 and IEC 947-3 (International
Electrotechnical Commission). The switch shall not be incorporated in the mains supply cord.

Furthermore, to provide protection against excessive energy being drawn from the mains
supply in case of a fault in the equipment, an overcurrent protection device shall be installed.

¥ The Protective Conductor must be connected for safety reasons. Check

that the power cable has the proper Earth wire, and it is properly connected. It is
not safe to operate this unit without the Protective Conductor Terminal
connected.

¥ Do not exceed voltage rating on the label located on the top of the instrument

housing.
¥ Always disconnect power before changing signal and power connections.
¥ Do not use this instrument on a work bench without its case for safety reasons.
¥ Do not operate this instrument in flammable or explosive atmospheres.
¥ Do not expose this instrument to rain or moisture.
¥ Unit mounting should allow for adequate ventilation to ensure instrument does

not exceed operating temperature rating.
¥ Use electrical wires with adequate size to handle mechanical strain and power

requirements. Install without exposing bare wire outside the connector to

minimize electrical shock hazards.

EMC Considerations

¥ Whenever EMC is an issue, always use shielded cables.
¥ Never run signal and power wires in the same conduit.
¥ Use signal wire connections with twisted-pair cables.
¥ Install Ferrite Bead(s) on signal wires close to the instrument if EMC problems

persist.

CALIBRATION / DPF51 & DPF52

1. Apply the minimum current or voltage to the signal input.
Adjust the zero pot for the minimum display reading ±1 count.

2. Apply the maximum current or voltage to the signal input.
Adjust the span pot for the maximum display reading ±1 count.

3. Repeat steps 1 and 2 until ±1 count desired reading. Reinstall the
lens.

PULL TAB HERE

PC BOARD

PUSH BOARD ASS'Y FROM HERE

REMOVING BOARD FROM CASE

5

6

7

– DC

Screws

underneath

+ DC

No Connection N/C

P1

ORANGE
CONNECTOR

External
Power
Supply

1

2

Screws

underneath

3

4

P1

+ EXC

– EXC

Sig Hi

Sig Lo

+

Current

Transmitter

–

FUSE

GREEN WIRE

EARTH

Screws

underneath

ORANGE
CONNECTOR

P1

N
L

5

6

7

SWITCH

LINE

NEUTRAL

Check for proper Earth grounding in the
power distribution system (single phase).

WIRINGPANEL CUTOUT

REAR OF CASE

All dimensions are in inches [millimeters].

CALIBRATION / DPF53

1. Apply a voltage equivalent to 95% of the range selected to the
signal input.

2. Adjust the span pot for a reading of 1900 ±1 count.

3. Reinstall the lens.

S1

S1

S

Z

A

C

B

ZERO SPAN

Decimal

Point S1

1.999 A

19.99 B

199.9 C
1999 Store jumper

above A

CURRENT / VOLTAGE INPUT (DPF51 & DPF52)

S3

4-20 mA D, E

0-0.2 V dc E

1-5 V dc A

0-10 V dc B

0-100 V dc C

VOLTAGE INPUT RANGE (DPF53) S3

±199.9 mV dc -

±1.999 V dc A
±19.99 V dc B
±199.9 V dc C

EXCITATION VOLTAGE (DPF52) S2 S4

10 V, (standard internal reference) B, D A
24 V, (standard internal reference) B, D -

10 V, (reference based on excitation voltage) A, C A

LENS

CASE

MOUNTING CLAMP

MOUNTING SCREW (2)

PANEL CUTOUT

2.677 +0.028/-.000
[68.00 +0.70/-0.00]

R 0.06 [1.5]

4 PLCS

0.874 +.012/-.000
[22.20 +0.30/-0.00]

PANEL THICKNESS

0.25 [6.4] MAX

0.03 [0.8] MIN

3412

567

P1

Hold

Digital Return

1

2

Screws

underneath

3

P1

4

Current

OR

Voltage

–

+

~

–

Switch

+

DC Current

DC Voltage

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 OMEGAÕs customers receive
maximum coverage on each product.

If the unit should malfunction, it must be returned to the factory for evaluation. OMEGAÕs
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 being damaged as a result of excessive corrosion; or current, heat,
moisture or vibration; improper specification; misapplication; misuse or other operating
conditions outside of OMEGAÕs 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 if 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, EXPRESSED 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 ÒBasic ComponentÓ 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 OMEGAÕS 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. P.O. 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.

FOR NON-W

ARRANTY REPAIRS, consult
OMEGA for current repair charges. Have the
following information available BEFORE
contacting OMEGA:

1. P.O. number to cover the COST of the repair,

2. Model and serial number of product, and

3. Repair instructions and/or specific problems

relative to the product.

OMEGAÕs 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 2001 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 prior written consent of OMEGA ENGINEERING, INC.

USA

MADE

IN

SPECIFICATIONS (continued)

REQUIRED EXTERNAL FUSE PROTECTION

24Vac 160mA, UL Slow-Blow or IEC 127-2/111 Time-lag
100/115Vac 40mA, UL Slow-Blow or IEC 127-2/111 Time-lag
230Vac 20mA, UL Slow-Blow or IEC 127-2/111 Time-lag

ELECTRICAL SAFETY CLASSIFICATION

Installation Category CAT I per EN61010-1
Pollution Degree 2 per EN61010-1
Class of Equipment I per EN61010-1

TRANSMITTER EXCITATION SUPPLY / DPF52

Output voltage Selected for 10 or 24 V dc
Output current, max 30 mA @ 10 V, 20 mA @ 24 V
Line regulation ±0.01% / V of ac power
Load regulation ±0.5%
Tempco ±0.02% / ¡C
Ripple at 50/60 Hz ±0.01%

DISPLAY

Type 3

1

/2 digit, 7-segment, red or green LED
Height 14.2 mm (0.56 in.)
Symbols -1.8.8.8
Overrange Indication Three least-significant digits blank

ENVIRONMENTAL

Operating temperature
DPF52 0¡C to 50¡C (32¡F to 122¡F)
Operating temperature
DPF51 & DPF53 0¡C to 60¡C (32¡F to 140¡F)
Storage temperature -40¡C to +85¡C (-40¡F to 185¡F)
Relative humidity 95% at 40¼C (104¡F) (non-condensing)

MECHANICAL

Case type 3/64 DIN (2472-100)
Bezel 24 x 72 mm (0.94 x 2.83 in)
Panel cutout

3

/64 DIN 22.2 x 68 mm (0.87 x 2.68 in)

Panel Thickness 0.8 mm (0.03 in) min.

6.4 mm (0.25 in) max.
Depth behind bezel,
with connector 120 mm (4.72 in)
Weight 200 g (7 oz)
Case material 94V-1 UL-rated thermoplastic

MODEL DPF50

3 1/2 DIGIT MINI-SIZE PROCESS METER (DPF51)

PROCESS WITH ISOLATED EXCITATION (DPF52)

DC VOLTAGE INPUT (DPF53)

SPECIFICATIONS

ANALOG INPUT / DPF51 & DPF52

Range 4-20 mA 0-0.2 V 1-5 V 0-10 V 0-100 V
Input resistance 13 ½ 1 M½ 1 M½ 1 M½ 1 M½
Bias current 50 pA 50 pA 10 pA 5 pA 1 pA
Maximum input 55 mA 250 Vp 250 Vp 250 Vp 250 Vp

ANALOG INPUT / DPF53

Range ±199.9 mV ±1.999 V ±19.99 V ±199.9 V
Input resistance 1 G½ 1.1 M½ 1.0 M½ 1.0 M½
Bias current 50 pA 5 pA 1 pA 1 pA
Maximum input 130 Vp 250 Vp 250 Vp 250 Vp

NOISE REJECTION

NMR, sig hi to sig lo 56 dB, 50/60 Hz
CMR, sig lo to pwr gnd 120 dB, DC to 60 Hz
CMV, sig lo to pwr gnd Dielectric strength to 1500V transient

per 260 Volt RMS or DC working
voltage.

CMV,

sig lo to dig return

(DPF53)

0 Volts

ACCURACY AT 25¡C / DISPLAY

Maximum error ±0.05% of reading ±1 count
Display range ±1999
Span adjustment

(DPF51 & DPF52)

0-2000 counts
Span tempco ±0.02% of reading/¡C
Zero adjustment

(DPF51 & DPF52)

-1500 to +500 counts with zero input

Zero tempco

(DPF51 & DPF52)

±0.01% of offset ±0.2 counts/¡C
Full-scale step response 1 second
Warmup 30 minutes
Reading rate 2.5 / second
Overrange indication Three least-significant digits blank

POWER OPTIONS / DPF52

Voltage 115/230 Vac ±15%
Frequency 50-60Hz
Power 3.3W max.
ÒVoltage optionsÓ with same
power and frequency.

Ò-100VÓ 100Vac ±15% (36mA max.)

Ò-24VACÓ 24Vac ±10% (145mA max.)

POWER OPTIONS / DPF51 & DPF53

Voltage 115/230 Vac ±15%
Frequency 50-60Hz
Power 2.3W max.
ÒVoltage optionsÓ with same
power and frequency.
AC Ò-100VÓ 100Vac ±15% (36mA max.)

Ò-24VACÓ 24Vac ±10% (133mA max.)
DC* Ò-7/32Ó 7-32 Vdc (100mA max.)*

Ò-5VDCÓ 5 Vdc (75mA max.)*

* External Supply must meet safety Agency Approval for safety DC

output. (Equipment CLASS I/II, CAT I min., Double Insulation

AVAILABLE MODELS

DESC

RIPTION PART #

Field selectable for 4-20 mA, 0-199.9 mV dc, DPF51
1-5 V dc, 0-10 V dc, 0-100 V dc input

DPF51 with sensor excitation output DPF52
Field Selectable for ranges ± 1999.9 mV DPF53

±1.999 V, ±19.999 V, ±199.9 V

ADD-ON OPTIONS PART #

230 V ac Input Power Add suffix Ò-230VÓ
100 V ac Input Power Add suffix Ò-100VÓ
24 V ac Input Power Add suffix Ò-24VACÓ
5 V dc (DPF51) Add suffix Ò-5VDCÓ
7-32 V dc (DPF51) Add suffix Ò-7/32Ó
Green LED display (instead of Red) Add suffix Ò-GRÓ
25 x 75 mm bezel adaptor Add suffix Ò-DPF50-AÓ

Ordering Example: DPF51-230V (DPF51 unit w/ 230 Vac)

M971/0401 11033ML-97 B

WARNING: These products are not designed for use in, and should not be used for, patient- connected
applications.

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OEMGA is
constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add
the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.

TRADEMARK NOTICE:

®

, omega.com®, are Trademarks of OMEGA

ENGINEERING, INC.

®

This device is marked with the international caution symbol. It is important to read the Setup
Guide before installing or commissioning this device, as the guide contains important information
relating to safety and EMC.

®

®

OMEGAnet¨ On-Line Service

www.omega.com

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