Omega DP116-MF1, DP116-MC2, DP116-JF1, DP116-JF2, DP116-JC1 User Manual

http://www.omega.com

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®

User ’s Guide

DP116-RTD

MINIATURE PANEL

THERMOMETER

MADE

IN

USA

Servicing North America:

USA: One Omega Drive, P.O. Box 4047

ISO 9001 Cer

tified

Stamford, CT 06907-0047
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec) H7L 5A1
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA

¨

Customer Service: 1-800-622-2378 / 1-800-622-BEST

¨

Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN

¨

TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Mexico: Tel: (001) 800-TC-OMEGA

¨

FAX: [phone]

En Espan÷ol: [phone]-7803 e-mail: [e-mail]

Servicing Europe:

Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands

Tel: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic: RudŽ arm‡dy 1868, 733 01 Karvin‡ 8

Tel: [phone] FAX: [phone]
e-mail: [e-mail]

France: 9, rue Denis Papin, 78190 Trappes

Tel: [phone] FAX: [phone]
Toll Free in France: 0800406342
e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

Tel: [phone] FAX: [phone]
Toll Free in Germany: 0800 TC-OMEGA

¨

e-mail: [e-mail]

United Kingdom: One Omega Drive,

ISO 9002 Certified River Bend Technology Centre

Northbank, Irlam
Manchester M44 5EX United Kingdom
Tel: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800 488 488
e-mail: [e-mail]

OMEGAnet¨On-Line Service Internet e-mail

http://www.omega.com [e-mail]

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply.
OMEGA 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.
WARNING: These products are not designed for use in, and should not be used for, patient connected applications.

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

TABLE OF CONTENTS

SECTION PAGE

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii

Models Available . . . . . . . . . . . . . . . . . . . . . . . . .iii

Section 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.2 Safety Considerations . . . . . . . . . . . . . . . . . . . . .2

Section 2 About the Meter . . . . . . . . . . . . . . . . . . . . . . . . .3

2.1 Front of the Meter . . . . . . . . . . . . . . . . . . . . . . . .3

2.2 Back of the Meter . . . . . . . . . . . . . . . . . . . . . . . .4

2.3 Connector Description . . . . . . . . . . . . . . . . . . . . .4

Section 3 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . .5

3.1 Main Board Power Jumpers . . . . . . . . . . . . . . . .5

3.2 Changing the Meter Parameters . . . . . . . . . . . . .7

3.3 Installation and Panel Mounting . . . . . . . . . . . . .10

3.4 Sensor Input Connections . . . . . . . . . . . . . . . . .12

3.5 Analog Output Connections . . . . . . . . . . . . . . . .14

3.6 Display Hold Connections . . . . . . . . . . . . . . . . .15

3.7 Main Power Connections . . . . . . . . . . . . . . . . .16

3.8 Disassembly/Assembly . . . . . . . . . . . . . . . . . . .18

Section 4 Operation and Calibration . . . . . . . . . . . . . . . . .20

4.1 Equipment Required . . . . . . . . . . . . . . . . . . . . .20

4.2 Calibration Procedure . . . . . . . . . . . . . . . . . . . .21

Section 5 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .23

Section 6 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

i

ii

PREFACE

Manual Objectives: This manual shows you how to set up and
use the RTD Panel Thermometer.

This meter is an economical Miniature Temperature Panel
Thermometer featuring a large display with a linearized analog
output that is supplied as a standard feature.

Each of the models* can be converted by the user to display in
degrees Fahrenheit or Celsius between one degree and a tenth
degree resolution.

RTD is an abbreviation for resistive temperature detector. The
meter is designed to measure 100 ohm platinum resistance with

0.00385 temperature coefficient, also known as the European
curve. The RTD will change resistance with a change in
temperature. When using a 2-wire measurement configuration,
lead wire impedance can contribute significant error to the
temperature measurement. When using long lead wires a 3- or
4-wire measurement configuration is recommended.

The meter is available in platinum RTD with 2-, 3-, or 4-wire
connections. All of the models listed in Table 1-1 come
standard with red LEDs, and can be ordered with a green LED
display as an option. The part numbers would then end with
Ò-GR".

Example: DP116-MF1-GR

Also, these meters can be ordered with different power
configurations. Refer to Table 1-3 for available choices.

*Refer to Table 1-1 for the complete listing of models available.

iii

MODELS AVAILABLE

TABLE 1-1

RTD MODELS AVAILABLE

The accuracies and ranges are listed in Section 5.

TABLE 1-2

Power Options Available

MODEL POWER

DP116-Mxx 115 Vac ±15%, 50/60 Hz

DP116-Mxx type-230 230 Vac ±15%, 50/60 Hz

DP116-Mxx type-9/26 9-26 Vdc @ 110mA max.

DP116-Mxx type-100 100 Vac ±15%, 50/60 Hz

DP116-Mxx type-24 24 Vac ±15%, 50/60 Hz

The following 3-1/2 digit mini RTD panel meters are
available and discussed in this OperatorÕs Manual.

MODEL TYPE ¡C or ¡F RESOLUTION

DP116-MF1 RTD F 1.0¡F
DP116-MF2 RTD F 0.1¡F
DP116-MC1 RTD C 1.0¡C
DP116-MC2 RTD C 0.1¡C

Note

☞

iv

TABLE 1-3

Other Models Available

The following 3-1/2 digit mini thermocouple panel
thermometers are discussed in a separate manual.

MODEL TYPE ¡C or ¡F RESOLUTION

DP116-JF1 J F 1.0¡F
DP116-JF2 J F 0.1¡F
DP116-JC1 J C 1.0¡C
DP116-JC2 J C 0.1¡C

DP116-KF1 K F 1.0¡F
DP116-KF2 K F 0.1¡F
DP116-KC1 K C 1.0¡C
DP116-KC2 K C 0.1¡C

DP116-TF1 T F 1.0¡F
DP116-TF2 T F 0.1¡F
DP116-TC1 T C 1.0¡C
DP116-TC2 T C 0.1¡C

DP116-EF1 E F 1.0¡F
DP116-EF2 E F 0.1¡F
DP116-EC1 E C 1.0¡C
DP116-EC2 E C 0.1¡C

v

NOTES, WARNINGS and CAUTIONS

Information that is especially important to note is identified by
these labels:

NOTE: provides you with information that is important
to successfully setup and use the Programmable
Digital Meter.

CAUTION or WARNING: tells you about the risk of
electric shock.

CAUTION, WARNING or IMPORTANT: tells you
of circumstances or practices that can effect the
meter's functionality and must refer to accompanying
documents.

Note

☞

vi

NOTES

1

SECTION 1 INTRODUCTION

1.1 UNPACKING

Remove the Packing List and verify that all equipment has been
received. If there are any questions about the shipment, use the
phone number for the Customer Service Department nearest
you.

Upon receipt of shipment, inspect the container and equipment
for any signs of damage. Take particular note of any evidence of
rough handling in transit. Immediately report any damage to the
shipping agent.

The carrier will not honor any claims unless all shipping
material is saved for their examination. After examining
and removing contents, save packing material and
carton in the event reshipment is necessary.

Verify that you received the following items in the shipping box:

QTY DESCRIPTION

1 Panel Thermometer with 3 small connectors plugged

into the rear of the meter.

1 OperatorÕs Manual

Note

☞

2

1.2 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 panel mount device protected in accordance with Class I
of EN 61010 (115/230 AC power connections). 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.

Note

☞

Note

☞

3

SECTION 2 ABOUT THE METER

2.1 Front of the Meter

Figure 2-1 shows the panel thermometer.

Figure 2-1. Panel Thermometer

Features:

Display:3 1/2 Digit, 7-Segment Red or Green LED

Full-size:14.2 mm (0.56") LED Display

Analog Output Standard

3/64 DIN Standard Panel Cutout

Removable Screw-Clamp Cable Connector

Display Hold Capability

4

2.2 Back of the Meter

Figure 2-2 illustrates the rear of the meter.

Figure 2-2. Rear View Showing P1, P2, P3 Locations

2.3 Connector Description

For RTD input wires, refer to Figure 3-3 thru 3-6.

Connector Description Connector PIN #
(AC) Earth Ground P1 1
(AC) Neutral P1 2
(AC) Line P1 3
(DC) -DC Return P1 1
(DC) +DC P1 2
(DC) No Connection (Not used) P1 3
Display Hold (Active Low) P2 1
Analog Return P2 2
Analog Output P2 3
RTD Input -EXC P3 1
RTD Input Signal Lo P3 2
RTD Input Signal Hi P3 3
RTD Input +EXC P3 4

123 123

3412

P1 P2 P3

5

SECTION 3 GETTING STARTED

3.1 Main Board Power Jumpers

Caution: The meter has no power-on switch, so it will

be in operation as soon you apply power.

The meter can be configured to operate on 115VAC or
230VAC by the proper combination of the soldered wire
jumpers that are located on the printed circuit board.
The meter is set at the factory to be powered by the
voltage specified at the time of ordering. The same
transformer is used for either configuration, so all you
need to do is to select the jumpers as described in this
section.

Important: These changes must be performed by a
qualified technician.

To change the Factory preset jumpers, do the following
steps:

Disconnect the power from the unit before proceeding.

1. Remove the main board from the case. Refer to
Disassembly/Assembly Section 3.8.

2. Locate the solder jumpers W1, W2, and W3 (located
near the edge of the main board alongside the
transformer).

3. If your power requirement is 115 V ac, solder jumpers
W1 and W3 should be wired, but jumper W2 should
not. If your power requirement is 230 Vac, solder
jumper W2 should be wired, but jumpers W1 and W3
should not.

Note

☞

6

Voltage Jumper Pin Settings

Figure 3-1 shows the location of solder jumpers W1 through

W3.

Figure 3-1. Power Jumper Locations

AC VOLTAGE INSTALL REMOVE

115VAC W1, W3 W2
230VAC W2 W1, W3

P3

P2

P1

4
3
2
1

3
2
1

3
2
1

S2

(COMPONENT SIDE)

S3

TRANSFORMER

W1 W2 W3

S5

S4

ZERO

DISPLAY

SPAN

7

3.2 Changing the Meter Parameters

The proper combinations of jumper plugs S1, S2, S3, S4, and S5
inside the meter allow you to change various parameters of the
meter. These parameters include resolution, range, units, RTD
sensor configuration and sensor break configuration. You can
change the parameters by moving the plugs on one or several of
the jumper locations. Keep in mind that the meter is factory set
for 3-wire RTD, and for the upscale position.

Figure 3-2 shows the location of the jumper plugs S1 through S5.

Figure 3-2. Jumper Plugs S1 through S5

(COMPONENT SIDE)

P2

2

3

1

3

4

S2

S2 S3

S1

A

A

AAC

B

B

CD

E
F

GIH

S4 S5

S3

S4

S5

A

C

B

UNUSED PLUG POSITION

ZERO SPAN

S1

S

Z

2

P3

1

3
2
1

P1

ZERO

TRANSFORMER

W1 W2 W3

SPAN

DISPLAY

8

The following tables summarizes what parameters you can
change.

TABLE 3-1 Range Parameters

* Refer to Table 1-1, for complete models (preface section).

TABLE 3-2 2-, 3-, 4-Wire, Upscale, Downscale Configuration

3-Wire input connection is standard. For 2- or 4-Wire
remove S2-A and S3-I

Configuration S2 S3 S3

Upscale (Default) Downscale

2- or 4-wire RTD -- -- A, B, E, F C, D, G, H

3-Wire RTD A I A, B, E, F C, D, G, H

Option F/C Resolution Range S1 S4 S5

*-MF1 ¡F 1¡ -328 to + 1562¡F -- A A
*-MF2 ¡F 0.1¡ -199.9 to + 199.9¡F C -- C
*-MC1 ¡C 1¡ -200 to + 850¡C -- A B
*-MC2 ¡C 0.1¡ -199.9 to + 199.9¡C C -- B

Note

☞

9

Figure 3-3 gives an example of how to set S4 and S5 to configure
a MF1 meter option. There is a jumper plug across A on S4 and
another jumper plug across A on S5. B and C on S5 are not used.

Figure 3-3. Example of How to Set Meter Option MF1

(jumpers S4 and S5)

SENSOR BREAK PROTECTION:

The proper combination of jumpers on S3 will determine the
direction in which the display and analog output will go if the
RTD sensor breaks (upscale or downscale). The meter is factory
set to upscale break protection. If the sensor breaks, the display
and analog signal will increment (upscale) and the 3 least
significant digits will then go blank. If you require downscale
break protection, refer to Table 3-2 to change the S3 jumper
configuration.

S4 S5

B

A

JUMPER PLUG

COVERING BOTH PINS

AC

JUMPER PLUG

COVERING

TWO PINS

OVER "A"

10

Section 3.3 Installation and Panel Mounting

Figure 3-4 shows the panel cutout dimensions, the dimensions

for the panel thickness, and the mounting clamp for mounting
the unit in a panel. Connections will be done after

mounting the unit.

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

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

3. Insert the meter into the panel cutout and reinstall the
mounting clamp to the bottom of the meter case from the
rear of the panel.

4. Re-install the mounting screws to secure the meter in the
panel. Do not over-tighten the screws.

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

11

Figure 3-4. Installation Information

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

Z

S1

MOUNTING
SCREW HOLES

CLAMP

CLAMP

SCREWS

S

R 0.06 [1.5]

4 PLCS

PANEL THICKNESS

0.25 [6.4] MAX

0.03 [0.8] MIN

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

PANEL CUTOUT

PANEL CUTOUT

CASE

LENS

MOUNTING CLAMP

MOUNTING SCREW (2)

12

3.4 Sensor Input Connections

The RTD sensor (see Figure 3-5), can be wired in three
different ways. They are 2-, 3-, and 4-wire configurations. The
meter is factory set internally to a 3-wire setup. If you wish to
change it, refer to Table 3-2.

2-Wire RTD:

Externally wire the P3 connector according to Figure 3-6.
Keep in mind that you will need to jumper pins 1 and 2 on P3
together, and jumper pins 3 and 4 on P3 together. Use 24 AWG
wire. The black lead goes to Pin 1 or 2 and the red lead goes to
Pin 3 or 4.

3-Wire RTD:

Externally wire the P3 connector according to Figure 3-7. Pin
4 on the P3 connector is not used.

4-Wire RTD:
Externally wire the P3 connector according to Figure 3-8.

Figure 3-5. RTD P3 Connector

See Figure 2-2 for the location of the P3 connector.

1

2

3

4

Screws

underneath

13

3.4 Sensor Input Connections (Continued)

Figure 3-6. 2-Wire RTD Wiring

Figure 3-7. 3-Wire RTD Wiring

Figure 3-8. 4-Wire RTD Wiring

Refer to Table 3-1 and Table 3-2 for internal jumper
settings.

* Wire colors are for OMEGA RTD wiring only.

P3

RED*

BLACK*

RED*
BLACK*

BLACK*

METER

METER

+ Excitation
Signal Hi
Signal Lo

- Excitation

4
3
2
1

P3

NOT USED

+ Excitation
Signal Hi
Signal Lo

- Excitation

4
3
2
1

RTD

RTD

P3

RED* (+Excitation)
RED* (Signal Hi)

BLACK* (Signal Lo)
BLACK* (-Excitation)

METER

+ Excitation
Signal Hi
Signal Lo

- Excitation

4
3
2
1

Note

☞

RTD

14

3.5 Analog Output Connections

The analog output is a linearized millivolt signal that is equivalent
to the displayed temperature. It comes as a standard feature
with every unit. The resolution of the analog output is no greater
than the resolution of the display.

The analog output is a non-isolated signal.

To access the analog signal, attach copper wire to the 3-pin
female connector that is supplied with the meter. Refer to
Figure 3-9 for wiring instructions. Plug the female connector
into the P2 (male) connector at the rear of the meter.

Figure 2-2 shows the location of the P2 connector on the
meter. Note that this connector shares a common return with the
ÒDisplay Hold" function.

Figure 3-9. Analog Output Connections (P2)

Note

☞

Output

mV

RETURN

+

–

1

2

3

Screws

underneath

15

3.6 Display Hold Connections

The ÒDisplay Hold" function can be used to freeze the display.
Connect a single pole, single throw (SPST) switch between pins
1 and 2 on the P2 connector. The display will stop updating when
this switch is on. When this switch is off, the display will update
itself 2.5 times per second.

To access the ÒDisplay Hold" function, attach copper wire to the
3-pin female connector that is supplied with the meter. Refer to
Figure 3-10 for wiring instructions. This connector shares a
common return with the Analog Output. Plug the female
connector into the P2 connector at the rear of the meter.

Figure 2-2 shows the location of the P2 connector on the meter.

Figure 3-10. Display Hold Connections

Switch

Display Hold

RETURN

1

P2

2

3

Screws

underneath

16

3.7 Main Power Connections

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.

Refer to Section 3-2 to convert from one
configuration to another

To connect power to the unit, attach wires from the ~AC power
cord to the orange 3-pin female connector that is supplied with
the meter. Refer to Figure 3-11 for wiring instructions. Plug the
female connector into the orange P1 (male) connector at the
rear of the meter.

Figure 2Ð2 shows the location of P1 on the meter.

Figure 3-11.

~

AC Connector Wiring (P1)

Note

☞

EARTH

NEUTRAL

LINE

GREEN WIRE

SWITCH

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

FUSE

©

N
L

1

2

Screws

underneath

P1

ORANGE

3

CONNECTOR

17

DC WIRING

The meter can be configured at the factory to operate on a 9Ð26
VDC non-isolated power. The DC voltage option is specified at
the time of ordering. See Table 1-3 for model number listing.
An AC powered meter cannot be converted to a DC powered
meter or vice versa.

To connect power to the unit, attach the DC power wires to the
orange 3-pin female connector that is supplied with the meter.
Refer to Figure 3-12 for wiring instructions. Plug the female
connector into the orange P1 (male) connector at the rear of the
meter.

Figure 2-2 shows the location of P1 on the meter.

Figure 3-12.=DC Power Connector Wiring (P1)

No Connection N/C

+ DC

External
Power Supply

– DC

P1

1

2

ORANGE
CONNECTOR

3

Screws

underneath

18

3.8 Disassembly/Assembly

You must go through the following steps in order to
remove the printed circuit board from the case if you want
to change from 115VAC to 230VAC (or vice versa) or to
change from Fahrenheit to Celsius (or vice versa). These
changes must be performed by a qualified technician in
order to avoid damage to the unit.

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!

1. Remove power and all wire connections from the unit.

2. Unplug the three connectors (P1, P2, and P3) from the
back of the meter. Grasp them firmly on the top and
bottom of the connector and pull. Figure 3-13 shows
the location of the three connectors.

3. Remove the lens, mounting screws, and mounting clamp
from the unit as described in steps 1 and 2 in Section 3.
Slide the unit out of the panel (if it is installed in a panel).

4. The printed circuit board is held in place by a tab and
notch system located next to the P1 connector, pin 1
(refer to Figure 3-13). The tab is on the case and the
notch is on the edge of the PC Board. Hold the meter with
the display facing away from you. Gently pry the tab (on
the back corner of the case) out with the edge of your
finger, while pushing the back of the PC Board out
through the front of the meter. The PC Board will slide out
the front, free from the case.

Note

☞

19

Figure 3-13. Removing the PC Board from the Case

When re-installing the printed circuit board:

1. Hold the case (with the two mounting holes facing upwards
and to the right side of the case) in the left hand.

2. Hold the printed circuit board with the components showing
(soldered side down) in the right hand.

3. Slip the component board into the case and slide in as far
as it will go. You will also have to release the tab at the rear
on the other side of the case (turn case over) to allow the
board to fit all the way inside the case.

4. Go through steps 3 thru 5 in Section 3.3 in order to
re-install the mounting clamp, screws, and lens.

PULL TAB HERE

PC BOARD

PUSH HERE

123 123

3412

P1 P2 P3

20

SECTION 4 OPERATION AND CALIBRATION

Important: These changes must be performed by a

qualified technician.

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!

1. Wire the meter according to the wiring section. This
includes power, thermocouple and analog signal
connections.

2. Apply power to the meter and the display will show the
temperature of the probe.

The meter is shipped from the factory calibrated to the accuracy
as specified. No re-calibration is necessary. In the event that
there is a desire to check the calibration, the following procedure
is given.

4.1 EQUIPMENT REQUIRED

¥ Meter
¥ a small screwdriver
¥ a precision resistance source in 0.01¡

resolution or ÒDecade Box".

21

4.2 CALIBRATION PROCEDURE

1. Remove the front lens. Connect power to the meter,
observing proper wiring procedures.

2. Connect the precision resistance source to the P3
connector observing proper wiring configuration.
For 3Ðwire connections, use pins 1, 2, 3, and 4. Refer
to Figures 4-1 through 4-3.

3. Apply resistance input as indicated in Table 4-1.

4. Adjust either the ZERO or SPAN potentiometer as
shown in Figure 4-4.

5. After adjusting the post, go back and verify both
temperature readings. Repeat step 4 as required.

Refer to Table 3-1 and Table 3-2 for internal jumper
settings.

Figure 4-1. 2-Wire Configuration

Figure 4-2. 3-Wire Configuration

Note

☞

P3
+ Excitation
Signal Hi
Signal Lo

- Excitation

P3
+ Excitation
Signal Hi
Signal Lo

- Excitation

4
3
2
1

RED
BLACK

JUMPER WIRE
(24 AWG)

RED

BLACK

NOT USED

4
3
2
1

RED
BLACK

BLACK

RED
BLACK

PRECISION
RESISTANCE
SOURCE

PRECISION
RESISTANCE
SOURCE

22

Figure 4-3. 4-Wire Configuration

TABLE 4-1

CALIBRATION VALUES WHEN YOU ARE USING

RESISTANCE SOURCE

* Refer to Table 1-1, for complete models (preface section).

Figure 4-4. Calibration Potentiometers

MODEL RESISTANCE METER POT TO
OPTION READING DISPLAY ADJUST

*-MF1 93.01 00¡F ZERO

375.51 1472¡F SPAN

*-MF2 93.01 00.0¡F ZERO

134.70 194.0¡F SPAN

*-MC1 100 00¡C ZERO

375.51 800¡C SPAN

*-MC2 100.0¡C 00¡C ZERO

174.0¡C 195.0¡C SPAN

P3
+ Excitation
Signal Hi
Signal Lo

- Excitation

RED

4

RED

3

BLACK

2

BLACK

1

RED
BLACK

PRECISION
RESISTANCE
SOURCE

ZERO SPAN

23

SECTION 5 SPECIFICATIONS

INPUT TYPE:

RTD:....................................................100-ohm platinum with alpha of 0.00385

Calibration:.............................................................................IEC 751 (IPTS-68)

Configuration:...................................................2-, 3-, or 4-wire RTD connection

Polarity: ....................................................................................................Bipolar

Zero: ...........................................................................Adjustable ±20¡C (±36¡F)

Zero Tempco : ...................................................................±0/05 degree/degree

Sensor-wire Resistance Tempco Effect per Conductor:

2-wire: ...........................................................20 mdeg/½/degree, up to 3.8 ½

3-wire: ............................................................50µdeg/½/degree, up to 100 ½

4-wire: ...........................................................5.0µdeg/½/degree, up to 100 ½

Sensor-excitation Current: .......................................................................0.5 mA

Sensor-break Indication:.............................................Meter displays overrange

(three least significant digits blank)

Overvoltage Protection: .............................................................................25 Vp

NOISE REJECTION

NMR , SIG HI to SIG LO:.........................................................70 dB, 50/60 Hz

CMR , Analog RTN to PWR GND: ....................................120 dB, DC to 60 Hz

CMV , Analog RTN to PWR GND: ........................Dielectric strength to 1500 V

transient per 260 Volt rms or DC working voltage.

ACCURACY at 25¡C

Range for rated accuracy:

MC1/MF1:...................................................-200¡ to +850¡C (-328¡ to +1562¡F)

Maximum Error: ......................................................±1.5¡C (±2.7¡F) ±1 count

MC2/MF2:.........................................-199.9¡ to +199.9¡C (-199.9¡ to +199.9¡F)

Maximum Error: ......................................................±0.5¡C (±0.5¡F) ±1 count

Resolution: ....................................0.1¡C, 0.1¡F, 1¡C or 1¡F (jumper-selectable)

Span Tempco : .................................................................±0.02% of reading/¡C

Full-Scale Step Response: .................................................................. 1 second

Warmup to Rated Accuracy:............................................................. 30 minutes

ANALOG OUTPUT (linearized)

Voltage: ..............................................................................................1mV/count

Calibration Error:

MC1/MF1:............................ ±1% of reading ± 1.5 mV on ¡C, ±2.7mV on ¡F

MC2/MF2: .............................................................. ±1% of reading ± 0.5 mV

Source Resistance: ...................................................................................100 ½

ANALOG TO DIGITAL CONVERSION

Technique: .................................................................Dual-slope, average value

Signal Integration Period: ........................................................................100 ms

Read Rate: ..................................................................................................2.5/s

24

DISPLAY

Type:..........................................................................................7-segment, LED

Height: .......................................................................................0.56" (14.2 mm)

Symbols:..................................................................................................-1.8.8.8

Overrange Indication:....................................Three least-significant digits blank

Colors: .........................................................................................Red - standard

Green - optional

DIGITAL INPUTS

Hold:......................................................................TTL or 5V CMOS compatible

ENVIRONMENTAL

Operating Temperature: ...............................................0¡ to 60¡C(32¡ to 140¡F)

Storage Temperature: .............................................-40¡ to 85¡C (-40¡ to 185¡F)

Relative Humidity: ..............................................95% at 40¡C (non-condensing)

MECHANICAL DIMENSIONS

Bezel: .......................................................................0.94" x 2.83" (24 x 72 mm)

Depth Behind the Bezel: .....................................4.72" (120 mm) w/ connectors

Panel Cutout: .................................................0.87"H x 2.68" W (22.2 x 68 mm)

Weight: .............................................................................7 ounces (200 grams)

Panel Thickness.........................................................minimum: 0.03" (0.76mm)

maximum: 0.25" (6.25mm)

Case Material: ......................................................94V-1 UL-rated thermoplastic

POWER

AC Frequency: ......................................................................................50/60 Hz

Max. Power: .................................................................................2.4 watts max.

AC Voltage: ................................................................115Vac ±15% 25mA max.

230Vac ±15% 14mA max.
100Vac ±15% 30mA max.
24Vac ±15% 127mA max.

DC Voltage:..........................................................................9-26 Vdc @ 110mA

External Fuse Protection needed:...................................32mA, 115Vac/230Vac

UL Slow-blow (per single unit) 40mA, 100Vac

160mA, 24Vac

125mA, 9-26Vdc

Installation Category: .................................................................. I per EN61010

Equipment Class:.........................................................................I per EN61010

Pollution Degree: ........................................................................2 per EN61010

Refer to the Glossary in Section 6.

0.945 [24.00]

Figure 5-1 Dimensions

25

0.197
[5.00]

4.134

[105.00]

4.60

[116.8]

2.835

[72.00]

0.858 [21.80]

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

R 0.06 [1.5]

4 PLCS

PANEL THICKNESS

0.25 [6.4] MAX

0.03 [0.8] MIN

2.661

[67.60]

TOP VIEWSIDE VIEW

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

PANEL CUTOUT

26

SECTION 6 GLOSSARY

COMMON MODE REJECTION (CMR)

- a measure of the affect
of a voltage on the indicated display. It is the ratio of the common
mode voltage to the measured voltage due to a common mode
voltage.

COMMON MODE VOLTAGE (CMV) - the average of the voltage
applied to both wires of a two wire or differential input.

NORMAL MODE REJECTION (NMR) - a measure of the
rejection of unwanted signal due to a voltage applied between
the wires of a two wire or differential input (shown as normal
mode voltage). NMR is the ratio of the normal mode voltage to
the measured voltage due to the normal mode voltage.

TEMPCO - abbreviation for temperature coefficient. It is the
effect of changes in ambient temperature on a particular
parameter, such as zero or span settings.

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.
OMEGAÕs 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 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, 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-WARRANTY 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 1999 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.

USASA

MADE

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11317ML-98 Rev. A M1195/0899