OMEGA PRTXS, PRTXI User guide

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PRTXS model

PRTXI and PRTXS Series

RTD Temperature Transmitter with

IO-Link/Switch and 4 to 20 mA

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

omega.com [email protected]

Omega Engineering, Inc:

Tel: [phone]
e-mail: [email protected]

Fax: [phone]

800 Connecticut Ave. Suite 5N01, Norwalk, CT 06854, USA
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)

Omega Engineering,

Limited:

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Irlam Manchester M44 5BD

United Kingdom

Omega Engineering,

GmbH:

Daimlerstrasse 26 75392

Deckenpfronn Germany

2 | M5792

Table of Contents

Table of Contents ............................................................................................................................................. 3

1 Notes, Cautions, and Warnings .................................................................................................................. 4

1.1 Requirements for Personnel .............................................................................................................................4

1.2 Designated Use ................................................................................................................................................4

1.3 Operational Safety ...........................................................................................................................................4

1.4 Product Safety .................................................................................................................................................4

2 Specifications ............................................................................................................................................ 5

3 PRTX Hardware Overview .......................................................................................................................... 9

3.1 Installation Instructions .................................................................................................................................. 10

3.1.1 Orientation ......................................................................................................................................................... 11

3.1.2 Device Temperature Ranges .............................................................................................................................. 11

3.1.3 Cylindrical Threads ............................................................................................................................................. 11

3.1.4 Tapered Threads ................................................................................................................................................. 12

4 Electrical Connection ............................................................................................................................... 13

4.1 IO-Link Operating Mode ................................................................................................................................. 13

4.2 4 to 20 mA Operating Mode ........................................................................................................................... 14

5 System Integration .................................................................................................................................. 15

5.1 Device and Vendor Identification .................................................................................................................... 15

5.2 Process Data .................................................................................................................................................. 15

5.3 Reading and Writing Device Data .................................................................................................................... 16

5.3.1 Specific Device Data ........................................................................................................................................... 16

5.3.2 IO-Link Specific Device Data ............................................................................................................................... 19

5.3.3 System Commands ............................................................................................................................................. 19

6 Diagnostics and Troubleshooting ............................................................................................................. 20

6.1 Diagnostic Information via Communication Interface ...................................................................................... 20

6.2 Diagnostic Overview ....................................................................................................................................... 21

.2.1 Device Behavior During an Event Fault .............................................................................................................. 22

6

6.3 Diagnostic List ................................................................................................................................................ 23

6.4 Event Logbook ............................................................................................................................................... 23

7 Maintenance and Cleaning ...................................................................................................................... 23

7.1 Services ......................................................................................................................................................... 23

8 Certifications and Approvals .................................................................................................................... 24

3 | M5792

1 Notes, Cautions, and Warnings

If the equipment is used in a manner not specified in this manual, protection of the equipment may be impaired.

o not operate the equipment in flammable or explosive environments.

D

I

t is important to read and follow all precautions and instructions in this manual before operating or commissioning
this device as it contains important information relating to safety and EMC. Failure to follow all the safety precautions
may result in injury and/or damage to the equipment.

T

he following labels identify information that is especially important to note:

Note: Provides information that is important to successfully set up and use the PRTXI/PRTXS.

C

aution or Warning: Informs about the risk of electrical shock.

Caution, Warning, or Important: Informs of circumstances that can affect the functionality of the instruments and

must refer to accompanying documents.

1.1 Requirements for Personnel

Installation, commissioning, diagnostics, and maintenance must abide by the following requirements:

• Trained, qualified specialists must have relevant qualifications.

• Personnel must be authorized by the plant owner/operator.

• Personnel must be familiar with federal/national regulations.

• Before starting work, read and understand the instructions in the manual.

• Follow instructions and comply with basic conditions.

1.2 Designated Use

The device is a compact RTD temperature sensor for industrial temperature measurement. The manufacturer is
not liable for damage caused by improper or non-designated use.

1.3 Operational Safety

Modifications to the device: Unauthorized modifications to the device are not permitted and can lead to

Caution: Risk of injury!

• Operate the device only if it is in proper technical condition, free from errors and faults.

1.4 Product Safety

This measuring device is designed in accordance with safety requirements, has been tested, and shipped in a
condition in which it is safe to operate. It meets general safety standards and legal requirements. It also complies
with the EC directives listed in the EC Declaration of Conformity. The manufacturer confirms this by affixing the CE
mark to the device.

dangers to personnel and/or the device.

4 | M5792

2 Specifications

Fault

Description

Underranging

Linear drop from 4.0 to 3.8 mA.

Overranging

Linear increase from 20.0 to 20.5 mA.

≤ 3.6 mA (low) or ≥ 21 mA (high) can be selected. The high alarm setting can be set

of various control systems.

Measurement Range: -50 to 200°C (-58 to 392°F)
Output Signal

4 to 20 mA (Analog): 4 to 20 mA; measuring range -50 to 200°C (-58 to 392°F)
IO-Link (Digital): C/Q (IO-Link or switch output)

Note: For additional information regarding the IO-Link and 4 to 20 mA wiring, refer to Section 4 Electrical

Connection.

ailure Information

F

Failure information is generated if the measuring information is missing or not valid. The device displays the three
diagnostic messages with the highest priority.

In the IO-Link mode, the device transmits all failure information digitally.

n the 4 to 20 mA mode, the device transmits the failure information according to NAMUR NE43:

I

Failure (Sensor

Defective)

inearization/Transmission Behavior: Temperature – linear

L

P

ower Supply

Supply Voltage (IO-Link/4 to 20 mA): U

between 21.5 mA and 23 mA; providing the flexibility needed to meet the requirements

= 10 to 30 V DC, protected against reverse polarity. IO-Link communication is

b

guaranteed only if the supply voltage is at least 15 V. If the supply voltage is less
than 15 V, the device displays a diagnostic message and deactivates the switch
output.

Power Supply Failure: To meet electrical safety according to CAN/CSA-C22.2 No. 61010-1 or UL 61010-1, the device

may only be powered by a power supply unit with a limited energy electric circuit in accordance
with UL/EN/IEC 61010-1 chapter 9.4 or Class 2 according to UL 1310, "SELV or Class 2 circuit".

B

ehavior in the event of overvoltage (> 30 V): The device works continuously up to 35 V DC without

any damage. If the supply voltage is exceeded, the provided specifications can no longer be
guaranteed.

B

ehavior in the event of undervoltage:

If the supply voltage falls below the minimum value ~ 7 V, the device will switch off as if not supplied
with power.

ximum Current Consumption: ≤ 23 mA for 4 to 20 mA

Ma
Power-On Delay: 2 seconds

Overvoltage Protection: To protect against overvoltage in the power supply and signal/communication cables for the

RTD temperature sensor electronics, the use of a suitable surge arrester is recommended.

5 | M5792

Reference Operating Conditions

Measured Error (±)

Digital

D/A 2)

Maximum

Based on measured value

≤0.55 °C
(0.99 °F)

ME = ± (0.215 °C (0.387 °F) +

0.134% * (MV - LRV))

djustment Temperature (Ice Bath): 0°C (32°F) for sensor

A
Ambient Temperature: (25°C ± 3°C (77°F ± 5°F) for electronics
Supply Voltage: 24 V DC ± 10%
Relative Humidity: <95%

Maximum Measured Error: When in accordance with the reference operating conditions listed above,

the measured error data corresponds to ±2 σ (Gaussian distribution). The
data include non-linearities and repeatability.

Measured error (according to IEC 60751) in °C = 0.15 + 0.002 |T|

Note: |T| = Numerical value of the temperature in °C without regard to algebraic sign.

TD Temperature Sensor with Electronics

R

Standard Designation Measuring Range

1)

IEC 60751 Pt100 Cl. A –50 to +200 °C (–58 to +392 °F)

1) Measured Value transmitted via IO-Link.

2) Percentages based on the configured span of the analog output signal.

M

V = Measured value

LRV = Lower range value of relevant sensor

Total measured error of transmitter at current output = √(Measured error digital² + Measured error D/A²)

0.05 % (8 µA)

6 | M5792

Operating Influences: The measured error data corresponds to ± 2 ρσ (Gaussian distribution).

Ambient Temperature Influence (+-) per 1 °C (1.8

°F) Change

Based on measured

value 4)

Based on

measured value 4)

°F)

0.004 % * (MV -

°F)

Sample Calculations

0.215 °C (0.387 °F) + 0.134% x [200 °C (392 °F) - (–50 °C (–58 °F))]

Measured Error D/A

0.05 % x 200 °C (392 °F)

0.10 °C (0.18 °F)

Influence of Ambient

Temperature (Digital)

(35 - 25) x (0.004 % x 200 °C (392 °F)), min. 0.008 °C (0.014 °F)

Influence of Ambient

Temperature (D/A)

(35 - 25) x (0.003 % x 200 °C (392 °F))

Influence of Supply

Voltage (Digital)

(30 - 24) x (0.004 % x 200 °C (392 °F)), min. 0.008 °C (0.014 °F)

Influence of Supply

Voltage (D/A)

(30 - 24) x (0.003 % x 200°C (392°F))

Measured Error Digital

Value (IO-Link)

√(Measured error digital² + Influence of ambient temperature
(digital)² + Influence of supply voltage (digital)²

√(Measured error digital² + Measured error D/A² + Influence of

Influence of supply voltage (D/A)²

1 Month

3 Months

6 Months

1 Year

3 Years

5 Years

Digital output IO-Link

± 9 mK

± 15 mK

± 19 mK

± 23 mK

± 28 mK

± 31 mK

Standard Designation

1)

Digital

Maximum 3)

0.010 °C (0.018

IE

C 60751

1) Measured value transmitted via IO-Link.

2) Percentages based on the configured span of the analog output signal.

3) Maximum measured error for the specified measuring range.

4) Deviations from maximum measured error possible due to rounding.

P

t100 Cl. A

MV = M

°F)

easured value

D/A 2) Digital 1) D/A 2)

0.004 % * (MV ­LRV), min.

0.008 °C (0.0144

0.003 % (0.48
µA)

Supply Voltage Influence (+-) per 1 V Change

3)

°F)

LRV), min.

0.008 °C (0.0144

aximum

M

0.010 °C (0.018

LRV = Lower range value of relevant sensor

Total measured error of transmitter at current output = √(Measured error digital² +
Measured error D/A²)

T

he following is a table of sample calculations with Pt100, measuring range -50 to +200 °C (-58 to +392°F), ambient

temperature +35 °C (+95 °F), and supply voltage 30 V:

0.003 % (0.48
µA)

Measured Error Digital

Measured Error Analog
Value (Current Output)

ong-Term Drift:

L

ambient temperature (digital)² + Influence of ambient
temperature (D/A)² + Influence of supply voltage (digital)² +

0.55 °C (0.99 °F)

0.08 °C (0.14 °F)

0.06 °C (0.11 °F)

0.05 °C (0.09 °F)

0.04 °C (0.07 °F)

0.56 °C (1.01 °F)

0.57 °C (1.03 °F)

Current output 4-20 mA ± 2.5 µA ± 4.3 µA ± 5.4 µA ± 6.4 µA ± 8.0 µA ± 8.8 µA

7 | M5792

Response Time T90: Test in water at 0.4 m/s (1.3 ft/s) according to IEC 60751; temperature changes in increments of

Design

t

10 K.

90

1/8” diameter probe 2 s

3/16” diameter probe 2 s

1/4” diameter probe 4 s

ironment

Env

Ambient Temperature Range: -40 to 85°C (-40 to 185°F)
Storage Temperature: -40 to 85°C (-40 to 185°F)
Operating Altitude: Up to 2000 m (6600 ft) above sea level
Climate Class: As per IEC/EN 60654-1, Class Dx
Degree of Protection: As per IEC/EN 60529 IP69

Shock and Vibration Resistance: The RTD temperature sensor meets the requirements of IEC

60751, which specifies shock and vibration resistance of 5 g in the
10 to 2000 Hz range.

Ele

ctromagnetic Compatibility (EMC): EMC in accordance with all the relevant requirements of the IEC/EN

61326 series and NAMUR Recommendation EMC (NE21). For details, refer to the
Declaration of Conformity.

• Maximum measured error under EMC tests: < 1 % of the span

• Interference immunity according to IEC/EN 61326 series, requirements for

industrial fields.

• Interference emission according to IEC/EN 61326 series, Class B equipment

IO-Li

nk

• Only the requirements of IEC/EN 61131-9 are met in IO-Link mode.

• The connection between the IO-Link master and RTD temperature sensor is established using an unshielded 3- wire

cable, maximum 20 m (65.6 ft) in length.

o 20 mA

4 t

• Electromagnetic compatibility in accordance with all the relevant requirements of the IEC/EN 61326 series and NAMUR

Recommendation EMC (NE21).

• With a connection cable length of 30 m (98.4 ft): always use a shielded cable.

• The use of twisted pair shielded connection cables is generally recommended.

ectrical Safety: Protection class III, Overvoltage category II, Pollution level 2

El

8 | M5792

3 PRTX Hardware Overview

Key

Description

1

Perpendicular to flow direction, installed at a minimum angle of 3° to ensure self-draining

2

Perpendicular to flow direction, installed at a minimum angle of 3° to ensure self-draining

3

On elbows

4

Inclined installation in pipes with a small nominal diameter

U

Immersion length

Key

Description

A

M12 threaded connector

B

Transmitter housing

C

Process connection

D

Sensor Probe

Figure 1: PRTX probe diagram

Figure 2: Installation visual diagram guide

9 | M5792

3.1 Installation Instructions

The immersion length of the RTD temperature sensor can considerably influence the accuracy of the device. If the
immersion length is too short, measurement errors can occur. When installing the device in a pipe, the immersion
length should penetrate halfway into the pipe diameter and ideally also be at least 15 times the diameter of the
probe. Installation examples include:

• Pipes

• Tanks

• Other plant components

roceed as follows to install the device:

P

Step 1: The permitted tightening torque of the process connections can be found in the specifications.

Step 2: The process connection and compression fitting must comply with the maximum specified process

pressure.

Step 3: Make sure that the device is installed and secured before applying the process pressure.

Step 4: Adjust the tightening torque of the thermowell to the process conditions.
Step 5: It may be necessary to calculate the static and dynamic tightening torque.

I

n the case of pipes with a small nominal diameter, the tip of the RTD temperature sensor should be inserted deep

enough into the process so that it extends past the pipe axis; Installation at an angle (4) may be another solution.
When determining the immersion length or installation depth, parameters of the RTD temperature sensor and of
the medium to be measured, such as flow velocity and process pressure, must be considered.

N

ote: The requirements of the EHEDG and the 3-A Sanitary Standard must be adhered to.

• Installation instructions EHEDG/cleanability: Lt ≤ (Dt-dt)

• Installation instructions 3-A/cleanability: Lt ≤ 2(Dt-dt)

• EHEDG certified installation requires the use of special gaskets as described in the EHEDG position

paper “Easy cleanable pipe couplings and process connections” Version 5, June 2019

he following actions must be taken if a sealing ring (O-ring) or seal fails:

T

S

tep 1: The RTD temperature sensor must be removed.
Step 2: The thread and the O-ring joint/sealing surface must be cleaned.
Step 3: The sealing ring or seal must be replaced.
Step 4: Proper cleaning of the device must be performed after installation.

I

n the case of weld-in connections, exercise the necessary degree of care when performing the welding work on

the process side:

tep 1: Use suitable welding material.

S
Step 2: Flush-weld or weld with welding radius ≥ 3.2 mm (0.13 in).
Step 3: Avoid crevices, folds or gaps.
Step 4: Ensure the surface is honed and polished, Ra ≤ 0.76 µm (30 µin).

he installed sensor is suitable for cleaning in place. Cleaning is performed together with the pipe or tank. In the

T
case of internal tank fixtures using process connection nozzles, it is important to ensure that the cleaning assembly
directly sprays this area so that it is cleaned properly.

10 | M5792

3.1.1 Orientation

G ¼”

61 Nm (45 ft/lbs)

G 3/8”

75 Nm (55 ft/lbs)

G ½”

G ¼”

CSW-1/4

G 3/8”

CSW-3/8

G ½”

CSW-1/2

No restrictions. However, the process must be able to self-drain. If there is an opening to detect leaks at the
process connection, the opening must be at the lowest possible point.

3.1.2 Device Temperature Ranges

The device generates a diagnostic message S825 if unfavorable device conditions are reached, such as high
process temperature, high ambient temperature, or electronics too close to the process. The device
generates diagnostic message F001 or Failure Current if the device temperature exceeds the recommended
temperature.

A

mbient Temperature Range: -40 to 85°C (-40 to 185°F) The RTD temperature sensor electronics must be

protected against temperatures over 85°C (185°F)

rocess Temperature Range: -50 to 200°C (-58 to 392°F)

P

3.1.3 Cylindrical Threads

Note: Seals must be used for cylindrical G threads.

Process Connection Tightening Torque [Nm]

81 Nm (60 ft/lbs)

f new sealing washers are required, they can be purchased from Omega Engineering in the following sizes:

I

Process Connection Omega Part Number

11 | M5792

3.1.4 Tapered Threads

¼” NPT

Hand-tighten, then, 2-3 full turns

⅜” NPT

Hand-tighten, then, 2-3 full turns

½” NPT

The operator must verify if additional sealing is necessary in the case of NPT threads or other tapered
threads.

Process Connection Tightening Torque [Nm]

Hand-tighten, then, 2-3 full turns

Figure 3: Tapered thread measurement guide

12 | M5792

4 Electrical Connection

Pin

Description

1

+ Power supply 15 to 30 V DC

2

Not used

3

- Power supply 0 V DC

4

C/Q (IO-Link or switch output)

The Omega PRTX offers two operating modes. Refer to the wiring diagrams below outlining the two different options.

Important: Do not overtighten the M12 plug, as this may damage the device. The maximum torque of the M12

knurl is 0.4 Nm. The indicated degree of protection is ensured if the M12x1 cable connector meets the
required degree of tightness.

4.1 IO-Link Operating Mode

Figure 3: IO-Link wiring diagram

Switching Capacity

• 1x PNP switch output

• Switch state ON Ia ≤ 200 mA; switch state OFF Ia ≤ 10 µA

• Switch cycles > 10,000,000

• Voltage drop PNP ≤ 2 V

• Overload protection

• Automatic load testing of switching current

• If a current of over 220 mA flows in the ON switch state, the device switches to a safe state

• Diagnostic message Overload at switch output

• Switch functions

• Hysteresis or window function

• NC contact or NO contact

• No pull-down resistor is integrated in the device for the switch output

13 | M5792

4.2 4 to 20 mA Operating Mode

Pin

Description

1

+ Power supply 10 to 30 V DC

2

- Power supply 0 V DC

3

Not used

4

Not used

Configurable Sensor Input Damping

0 to 120 s

Factory Default Setting

0 s

Figure 4: 4 to 20 mA wiring diagram

Load: R

inearization/Transmission Behavior: Temperature – Linear

L

D

amping:

b max

= (U

– 10 V) / 0.023 A (current output)

b max

Figure 5: Maximum allowable load resistance

14 | M5792

5 System Integration

Device ID

8585472

Vendor ID

1590

Byte 3

Byte 4

15

14

13

12

11

10 9 8 7 6 5 4 3 2 1 0

sint8

Enum4

Bool

Measured value

status

Switch

state

Process Value

Values

Meaning

The transmitted measured value must be

0.1)

Byte 1

Byte 2

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

Temperature (with one decimal place)

5.1 Device and Vendor Identification

5.2 Process Data

When the PRTX is in Digital Mode, the state of the switch output and the temperature value are transmitted in
the form of process data via IO-Link. The signal is initially transmitted in the SIO-Mode (Standard IO-Mode).
Digital IO-Link communication starts as soon as the IO-Link master sends the Wake-Up command.

• In SIO mode, the switch output is switched at pin 4 of the M12 connector. In the IO-Link communication
mode, this pin is reserved for communication.

• The measuring device's process data are transmitted cyclically in 32-bit batches.

sint16

Scale (-1)

–32000 to +32000

Temperature

Scale -1

32764 = No measurement data

- 32760 = Out of range (-)

32760 = Out of range (+)

Temperature value with one decimal place
Example: a transmitted value of 123
corresponds to a measured temperature
value of 12.3 °C

Process value if no valid measured value is
available

Process value if the measured value is
below the lower limit value

Process value if the measured value is
above the upper limit value

multiplied by 10 exp (Scale) (times 10-1 or

15 | M5792

Process value

Values

Meaning

value

0 = Bad

Measured value cannot be used

1 = Uncertain

Measured value can only be used to a

outside the permitted range (S825)

Measured value can only be used to a

measured variable is active (C485)

3 = Good

Measured value is good

Measured value without limit value
violation

1 = Low limited

Limit value violation at lower end

2 = High limited

Limit value violation at upper end

0 = Off

Switch output opened

1 = On

Switch output closed

Index

(dec)

Index
(hex)

Size

(byte)

Data

Storage

Application

Specific Tag

Order Code

1054

0x041E

20

String

r/- – –

–

Extended

Order Code

32 = °C

35 = K

Damping

7271

0x1C67

1

UInteger8

r/w

0 s

0 to 120 s

Yes

–10 to +10 °C

(–18 to +18 °F)

Window normally

Hysteresis normally

Hysteresis normally

Off (0x80EC)

Measured

status [bit 4 - 3]

2 = Manual/Fixed

0 = Not limited

Measured value

status

[bit 2- 1]

3 = Constant Measured value is set to a constant value

Switch output

[bit 0]

5.3 Reading and Writing Device Data

Device data are always exchanged acyclically and at the request of the IO-Link master via the ISDU communication
channel. The IO-Link master can read the following parameter values or device conditions:

5.3.1 Specific Device Data

The default values apply to parameters which are not ordered with customer-specific settings.

limited extent, e.g.: device temperature is

limited extent, e.g.: simulation of the

Identifier

Unit 5121 0x1401 1 UInteger8 r/w 32

Sensor Offset 3082 0x0C0A 4 Float r/w 0 °C (32 °F)

Operating

Mode Switch

Data Type Access Default Value Value Range

24 0x0018 32 String r/w – – Yes

259 0x0103 60 String r/- – – –

33 = °F

open (0x0CFF)
Window normally

2050 0x0802 2 UInteger16 r/w

Hysteresis

normally open

(0x0C9C)

closed (0x0C96)

open (0x0C9C)

closed (0x0C99)

Yes

Yes

Yes

16 | M5792

Identifier

Index

(dec)

Index
(hex)

Size

(byte)

Data

Storage

Switch Point

Value

Switchback
Point Value

2052

0x0804

4

Float

r/w

90 °C (194 °F)

-1E+20 to 1E+20

Yes

Switch Delay

2053

0x0805

1

UInteger8

r/w

0 s

0 to 99 s

Yes

Switchback

Delay

20 mA Value

8219

0x201B

4

Float

r/w

200 °C (392 °F)

–50000 to +50000 °C

Yes

Current

4 mA

Current

20 mA

0 = Low alarm

2 = High alarm

Failure

Current

Operating

Time

Alarm Delay

6147

0x1803

1

UInteger8

r/w

2 s

1 to 5 s

Yes

0: Device is OK

4: Failure

Detailed

Device Status

In accordance with
IO-Link specification

Actual

Diagnostic 1

Actual

Diagnostic 2

Actual

Diagnostic 3

Previous

Diagnostics 1

Previous

Diagnostics 2

Timestamp 2

6205

0x183D

4

UInteger32

r/-

–

–

–

Previous

Diagnostics 3

Timestamp 3

6206

0x183E

4

UInteger32

r/-

–

–

–

Data Type Access Default Value Value Range

2051 0x0803 4 Float r/w 100 °C (212 °F) -1E+20 to 1E+20 Yes

2054 0x0806 1 UInteger8 r/w 0 s 0 to 99 s Yes

4 mA Value 8218 0x201A 4 Float r/w -50 °C (-58 °F) –50000 to +50000 °C Yes

Trimming

Trimming

8213 0x2015 4 Float r/w 4.00 mA 3.85 to 4.15 mA Yes

8212 0x2014 4 Float r/w 20.00 mA 19.85 to 20.15 mA Yes

Failure Mode 8234 0x202A 1 UInteger8 r/w 0 = Low alarm

8232 0x2028 4 Float r/w 22.5 mA 21.5 to 23 mA Yes

6148 0x1804 4 UInteger32 r/- – – Yes

Device Status 36 0x0024 1 UInteger8 r/- –

37 0x0025 36 OctetString r/- –

6184 0x1828 2 UInteger16 r/- – – –

1: Maintenance

required
2: Out of specification
3: Functional check

Yes

–

–

Timestamp 1 6204 0x183C 4 UInteger32 r/- – – –

6186 0x182A 2 UInteger16 r/- – – –

6188 0x182C 2 UInteger16 r/- – – –

6214 0x1846 2 UInteger16 r/- – – –

6216 0x1848 2 UInteger16 r/- – – –

6218 0x184A 2 UInteger16 r/- – – –

17 | M5792

Identifier

Index

(dec)

Index
(hex)

Size

(byte)

Data

Storage

Previous

Diagnostics 4

Timestamp 4

6207

0x183F

4

UInteger32

r/-

–

–

–

Previous

Diagnostics 5

Timestamp 5

6208

0x1840

4

UInteger32

r/-

–

–

–

Current

Simulation

Current

Value

Sensor

Simulation

0 = Off
1 = On

Sensor

Value

0 = Disabled

33006 = On

Sensor Min

Value

Sensor Max

Value

Device

Temperature

Device

Min

Device Temp

Max

MDC

Descriptor

Data Type Access Default Value Value Range

6220 0x184C 2 UInteger16 r/- – – –

6222 0x184E 2 UInteger16 r/- – – –

Output

Output

Simulation

Simulation

Switch Output

Simulation

8210 0x2012 2 UInteger16 r/w 33004 = Off

33004 = Off
33005 = On

8211 0x2013 4 Float r/w 3.58 mA 3.58 to 23 mA –

3109 0x0C25 1 UInteger8 r/w 0 = Off

3104 0x0C20 4 Float r/w 0 °C (32 °F) -1E+20 to 1E+20 °C –

2056 0x0808 2 UInteger16 r/w 0 = Disabled

33004 = Off

3081 0x0C09 4 Float r/- – – –

3080 0x0C08 4 Float r/- – – –

4096 0x1000 4 Float r/- – – –

–

–

–

Temperature

4107 0x100B 4 Float r/- – – –

4106 0x100A 4 Float r/- – – –

16512 0x4080 11 Record r/- – – –

18 | M5792

5.3.2 IO-Link Specific Device Data

Identifier

Index (dec)

Index (hex)

Size (byte)

Data Type

Access

Default Value

Serial Number

21

0x0015

16

String

r/- – Product ID

19

0x0013

32

String

r/-

PRTXI-PRTXS

Product Text

20

0x0014

32

String

r/-

PRTXI-PRTXS

Vendor Name

16

0x0010

32

String

r/-

Omega Engineering

Vendor Text

17

0x0011

32

String

r/-

Sensing Incredible Things

Hardware Version

22

0x0016

8

String

r/-

–

Firmware version

23

0x0017

8

String

r/-

–

Value

(dec)

Value

(hex)

Reset factory settings

130

0x82

Activate parametrization lock

160

0xA0

Deactivate parametrization lock

161

0xA1

Reset sensor min/max values

162

0xA2

IO-Link 1.1 system test command 240

240

0xF0

IO-Link 1.1 system test command 241

241

0xF1

IO-Link 1.1 system test command 242

242

0xF2

IO-Link 1.1 system test command 243

243

0xF3

Product Name 18 0x0012 32 String r/- PRTX RTD Temperature Sensor

Device Access Locks 12 0x000C 2 Record r/w –

5.3.2.1 IO-Link Configuration

IO-Link functions and device-specific parameters are configured through the device’s IO-Link
communication. IO-Link devices are typically configured using the automation system. The PRTX
supports IO-Link Data Storage.

5.3.3 System Commands

Identifier

Reset device temperature min/max values 163 0xA3

19 | M5792

6 Diagnostics and Troubleshooting

Error

Possible Cause

Solution

Supply voltage does not match the
value indicated in the specifications.

The polarity of the supply voltage is
wrong.

Correct the polarity of the
supply voltage.

The device has been incorrectly
configured.

Check and correct the
parameter configuration.

The device has been incorrectly
connected.

Incorrect device orientation.

Install the device correctly.

Heat dissipation over the measuring
point.

Observe the installed length of
the sensor.

Communication cable is not
connected.

Communication cable is incorrectly
attached to the IO-Link master.

No transmission of process
data

Correct errors that are
displayed as a diagnostic event.

Alphabetic

Character

F

Operating error

An operating error has occurred.

The device is in service mode (e.g. during a
simulation).

The device is being operated outside its
technical
cleaning processes).

Maintenance

required

Maintenance is required.

Follow these instructions to resolve general troubleshooting issues.

Device is not responding.

Apply correct voltage.

Device measures incorrectly.

No communication

There is an error in the device.

6.

1 Diagnostic Information via Communication Interface

The Device Status parameter shows the event category of the active diagnostic message with the highest priority.

e status signals provide information on the state of the device by categorizing the cause of the diagnostic

Th
information. The status signals are categorized according to NAMUR Recommendation NE 107:

F = Failure,
C = Function Check
S = Out of Specification
M = Maintenance Required

Check the pin assignment.

Check wiring and cables.

Event Category Meaning

C Service mode

S

M

Out of

specification

specifications (e.g. during warm-up or

20 | M5792

6.2 Diagnostic Overview

IO-Link

Qualifier

IO-Link

Code

The sensor is defective

sensor short-circuit)

1: Check sensor.

conditions.

IO-Link

Notification

Factory reset

active

Factory reset is active,
please wait.

Initialization

active

Initialization active,
please wait.

Simulation of the

active

IO-Link

Warning

Current output

simulation active

Simulation of the
current output is active

/IO-Link

Warning

Switch output

simulation active

Simulation of the
switch output is active

Current range is invalid

difference between

greater than or equal to
10°C.

Switch points are

switchback point.

IO-Link

Warning

Supply voltage

too low

Increase supply
voltage.

1: Increase load

3: Replace device.

of the electronics out of

1: Check ambient

temperature.

Diagnostic

Message

Diagnostic

Behavior

Event

Event

Event Text Reason Corrective Measure

F001 Alarm IO-Link Error 0x1817 Device failure Device fault

F004 Alarm IO-Link Error 0x1818 Sensor defective

S047 Warning

C401 Warning

IO-Link

Warning

0x1819

0x181F

Sensor limit

reached

C402 - - -

C485 Warning

C491 Warning

C494 Warning

IO-Link

Warning

0x181A

0x181B

0x181C

Process variable

simulation active

(e.g.: sensor failure or

Sensor limit has been
reached

Factory reset is active

Initialization is active

process variable is

1: Restart the device.
2: Replace device.

Replace device.

2: Check process

Deactivate simulation.

Deactivate simulation.

Deactivate simulation.

F537 Alarm IO-Link Error 0x181D

S801 Warning

0x181E

S804 1) Alarm - -

S825 Warning

IO-Link

Warning

0x1812

Configuration

invalid

Overload at

switch output

Operating

temperature

The
the 4mA value and
20mA value must be

invalid. The switch
point must be greater
than or equal to the

Supply voltage too low

Overload at the switch
output

Operating temperature

specification

1: Check device
configuration.

2: U

pload and
download new
configuration.

resistance at switch
output.
2: Check the output.

temperature.
2: Check process

21 | M5792

Diagnostic

IO-Link

Code

Message

S844 2) Warning - -

1) Diagnostic only possible in SIO mode

2) Diagnostic only possible in the 4 to 20 mA mode

Diagnostic

Behavior

IO-Link

Event Qualifier

Event

Event Text Reason Corrective Measure

Process value out
of specification

6.2.1 Device Behavior During an Event Fault

The diagnostic behavior of the device differs depending on the selected operating mode. Regardless of the
operating mode, all the diagnostic messages are saved in the event logbook, where they can be accessed as
required.

6.2.1.1 IO-Link

The device displays warnings and faults via IO-Link. All the device warnings and faults are for
information purposes only and do not have a safety function. The errors diagnosed by the device are
displayed via IO-Link in accordance with NE107. A distinction must be made between the following
types of diagnostic behavior:

Wa

rning

The device continues measuring in the event of warning-type diagnostic behavior. The output signal is
not affected (exception: simulation of the process variable is active).

Process value is outside
the specification

1: Check process
value.
2: Check application.
3: Check sensor.

A

larm

• The device does not continue measuring if this type of error occurs. The output signal adopts its
fault state value in the event of an error.

• The PDValid Flag indicates that the process data are invalid.

• The fault state is displayed via IO-Link.

6

.2.1.2 Switch output

Warning

The switch output remains in the state defined by the switch points.

larm

A

The switch output changes to the open state.

6.2.1.3 4 to 20 mA

Warning

The current output is not affected.

A

larm

The current output adopts the configured failure current.

Note: The behavior of the output in the event of a failure is regulated in accordance with NAMUR NE43.

• The failure current can be set.

• The selected failure current is used for all errors.

22 | M5792

6.3 Diagnostic List

Service

Description

Standard Calibration Points for CAL-3

Probe Diameter

0.125 in

(3.18 mm)

0.188 in

(4.76 mm)

0.250 in

(6.35 mm)

0°C (32°F)

100°C (212°F

100°C (212°F)

200°C (392°F)

If three or more diagnostic events are pending simultaneously, only the 3 diagnostic messages with the highest
priority are shown in the diagnostic list. The status signal dictates the priority in which the diagnostic messages are
displayed. The following order of priority applies: F, C, S, M. If two or more diagnostic events with the same status
signal are active simultaneously, the numerical order of the event number dictates the order of priority in which
the events are displayed, e.g. F042 appears before F044 and before S044.

6.4 Event Logbook

The diagnostic messages are shown in chronological order in the event logbook. Additionally, a timestamp is saved
with every diagnostic message. This timestamp is determined by the operating time counter.

7 Maintenance and Cleaning

The device must be cleaned whenever necessary. Cleaning can also be done when the device is installed. When
cleaning the device, care must be taken to ensure that it is not damaged.

Important: Avoid damage to the device and the system. Pay attention to the specific IP code when cleaning.

7.1 Services

Calibration

alibration: Factory calibration is available upon request. Customers may request Cal-3 for standard 3-point

C

calibration, or Cal-4 for user-specified temperature points. All calibrations are NIST traceable.

RTD elements may drift depending on the application. Regular recalibration to verify accuracy is
recommended. The calibration can be performed by Omega Engineering.

Probe Type Probe Length Minimum

< 178 mm (7”)

RTD

≥ 178 mm (7”)

50°C (122°F)

150°C (302°F)

23 | M5792

8 Certifications and Approvals

CE Mark: The product meets the requirements of the harmonized European standards. As such, it complies with the

legal specifications of the EC directives. The manufacturer confirms successful testing of the product by
affixing the CE-mark.

UKCA Mark: The product meets the requirements of UK designated standards. As such, is complies with the

specifications of relevant UK legislations. The manufacturer confirms successful testing of the product by
affixing the UKCA mark.

oHS: The measuring system complies with EU Directive 2011/65/EU (RoHS 2) and 2015/863 of the European

R

Parliament on the restriction of use of certain hazardous substances in electrical and electronic equipment.

M

TBF: For the transmitter: 327 years, according to Siemens Standard SN29500

ygienic Standard (Applies to Sanitary Models Only):

H

• 3-A Authorization No. 1519, 3-A Sanitary Standard 74-07. Sensors and Sensor Fittings and Connections.

• EHEDG Certified, Certificated No. EHEDG-C2200048

Other Standards and Guidelines:

• Degree of protection provided by enclosures (IP code) according to IEC 60529

• Safety requirements for electrical equipment for measurement, control and laboratory use according to IEC 61010-

1

• Industrial platinum resistance RTD temperature sensor in accordance with IEC 60751

• Electromagnetic compatibility (EMC requirements) IEC/EN 61326 series

• NAMUR International user association of automation technology in process industries (www.namur.de)

• NE21 - Electromagnetic Compatibility (EMC) of Industrial Process and Laboratory Control Equipment.

• NE43 - Standardization of the Signal Level for the Failure Information of Digital Transmitters.

• Electromagnetic compatibility (EMC) according to IO-Link Specification IEC 61131-09

24 | M5792

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’s 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 in which wear is not warranted, include but are 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 the
company 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 “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 WARRANTY 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 trademark of OMEGA ENGINEERING, INC.
© Copyright 2019 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,
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.

consult

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

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M5792/1222