Endress+Hauser RIA14 User manual

Products Solutions Services
Operating Instructions
RIA14
Loop-powered field indicator
BA00278R/09/EN/05.22-00
71615257
2022-11-21

Table of contents RIA14
2 Endress+Hauser
Table of contents
1 About this document ................ 3
1.1 Symbols .............................. 3
1.2 Documentation ........................ 4
2 Basic safety instructions ............ 5
2.1 Requirements for the personnel ............ 5
2.2 Intended use .......................... 5
2.3 Workplace safety ....................... 5
2.4 Operational safety ...................... 5
2.5 Product safety ......................... 6
2.6 IT security ............................ 6
3 Incoming acceptance and product
identification ....................... 6
3.1 Incoming acceptance .................... 6
3.2 Product identification .................... 7
3.3 Storage and transport ................... 7
3.4 Certificates and approvals ................ 7
4 Mounting .......................... 8
4.1 Mounting requirements .................. 8
4.2 Mounting the measuring device ............ 8
4.3 Post-installation check .................. 10
5 Electrical connection .............. 10
5.1 Connection requirements ................ 10
5.2 Connecting the device .................. 11
5.3 Ensuring the degree of protection .......... 12
5.4 Post-connection check .................. 12
6 Operation options ................. 13
6.1 Overview of operation options ............ 13
6.2 Access to the operating menu via operating
keys ............................... 13
6.3 Structure and function of the operating
menu .............................. 15
6.4 Access to the operating menu via the
operating tool ........................ 16
7 Commissioning .................... 17
7.1 Post-installation check .................. 17
7.2 Switching on the device ................. 18
7.3 Configuring the measuring device .......... 18
8 Diagnosis and troubleshooting ..... 22
8.1 General troubleshooting ................. 22
8.2 Diagnostic list ........................ 22
9 Maintenance ...................... 23
9.1 Cleaning ............................ 23
10 Repair ............................ 23
10.1 General information ................... 23
10.2 Spare parts .......................... 23
10.3 Return .............................. 25
10.4 Disposal ............................ 25
11 Accessories ....................... 25
11.1 Communication-specific accessories ........ 25
12 Technical data .................... 26
12.1 Input ............................... 26
12.2 Output ............................. 26
12.3 Power supply ......................... 27
12.4 Performance characteristics .............. 28
12.5 Mounting ........................... 28
12.6 Environment ......................... 28
12.7 Mechanical construction ................ 29
12.8 Human interface ...................... 30
12.9 Certificates and approvals ............... 32
12.10 Documentation ....................... 32

RIA14 About this document
Endress+Hauser 3
1 About this document
1.1 Symbols
1.1.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.1.2 Electrical symbols
Symbol Meaning
Direct current
Alternating current
Direct current and alternating current
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a
grounding system.
Potential equalization connection (PE: protective earth)
Ground terminals that must be connected to ground prior to establishing any other
connections.
The ground terminals are located on the interior and exterior of the device:
• Interior ground terminal: potential equalization is connected to the supply network.
• Exterior ground terminal: device is connected to the plant grounding system.
1.1.3 Symbols for certain types of information
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
A
Reference to page

About this document RIA14
4 Endress+Hauser
Symbol Meaning
Reference to graphic
Notice or individual step to be observed
1.
,
2.
,
3.
… Series of steps
Result of a step
Help in the event of a problem
Visual inspection
1.1.4 Symbols in graphics
Symbol Meaning Symbol Meaning
1, 2, 3,... Item numbers
1.
,
2.
,
3.
… Series of steps
A, B, C, ... Views A-A, B-B, C-C, ... Sections
-
Hazardous area
.
Safe area (non-hazardous area)
1.2 Documentation
For an overview of the scope of the associated Technical Documentation, refer to the
following:
•Device Viewer (www.endress.com/deviceviewer): Enter the serial number from the
nameplate
•Endress+Hauser Operations app: Enter serial number from nameplate or scan
matrix code on nameplate.
1.2.1 Document function
The following documentation may be available depending on the version ordered:
Document type Purpose and content of the document
Technical Information (TI) Planning aid for your device
The document contains all the technical data on the device and provides
an overview of the accessories and other products that can be ordered for
the device.
Brief Operating Instructions (KA) Guide that takes you quickly to the 1st measured value
The Brief Operating Instructions contain all the essential information
from incoming acceptance to initial commissioning.
Operating Instructions (BA) Your reference document
The Operating Instructions contain all the information that is required in
the various phases of the life cycle of the device: from product
identification, incoming acceptance and storage, to mounting,
connection, operation and commissioning through to troubleshooting,
maintenance and disposal.
Description of Device Parameters
(GP)
Reference for your parameters
The document provides a detailed explanation of each individual
parameter. The description is aimed at those who work with the device
over the entire life cycle and perform specific configurations.

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Document type Purpose and content of the document
Safety Instructions (XA) Depending on the approval, safety instructions for electrical equipment in
hazardous areas are also supplied with the device. The Safety Instructions
are an integral part of the Operating Instructions.
Information on the Safety Instructions (XA) relevant to the device is
provided on the nameplate.
Supplementary device-dependent
documentation (SD/FY)
Always comply strictly with the instructions in the relevant
supplementary documentation. The supplementary documentation is an
integral part of the device documentation.
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill
the following requirements:
‣Trained, qualified specialists must have a relevant qualification for this specific function
and task.
‣Are authorized by the plant owner/operator.
‣Are familiar with federal/national regulations.
‣Before starting work, read and understand the instructions in the manual and
supplementary documentation as well as the certificates (depending on the
application).
‣Follow instructions and comply with basic conditions.
The operating personnel must fulfill the following requirements:
‣Are instructed and authorized according to the requirements of the task by the facility's
owner-operator.
‣Follow the instructions in this manual.
2.2 Intended use
• The device is a configurable field indicator with one sensor input.
• It is designed for mounting in the field.
• The manufacturer accepts no liability for damages resulting from improper or non-
intended use.
• Safe operation is only guaranteed if the Operating Instructions are observed.
• Only operate the device in the permitted temperature range.
2.3 Workplace safety
When working on and with the device:
‣Wear the required personal protective equipment as per national regulations.
2.4 Operational safety
Damage to the device!
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for the interference-free operation of the device.

Incoming acceptance and product identification RIA14
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Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers!
‣If modifications are nevertheless required, consult with the manufacturer.
Repair
To ensure continued operational safety and reliability:
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to the repair of an electrical device.
‣Use only original spare parts and accessories.
2.5 Product safety
This measuring device is designed in accordance with good engineering practice to meet
state-of-the-art safety requirements, has been tested, and left the factory in a condition in
which it is safe to operate.
It meets general safety standards and legal requirements. It also complies with the EU
directives listed in the device-specific EU Declaration of Conformity. The manufacturer
confirms this by affixing the CE mark to the device.
2.6 IT security
Our warranty is valid only if the product is installed and used as described in the Operating
Instructions. The product is equipped with security mechanisms to protect it against any
inadvertent changes to the settings.
IT security measures, which provide additional protection for the product and associated
data transfer, must be implemented by the operators themselves in line with their security
standards.
3 Incoming acceptance and product
identification
3.1 Incoming acceptance
Proceed as follows on receipt of the device:
1. Check whether the packaging is intact.
2. If damage is discovered:
Report all damage immediately to the manufacturer.
3. Do not install damaged components, as the manufacturer cannot otherwise
guarantee the material resistance or compliance with the original safety
requirements, and can also not be held responsible for the consequences that may
result.
4. Compare the scope of delivery against the contents of your order.
5. Remove all the packaging material used for transportation.
6. Do the data on the nameplate match the ordering information on the delivery note?
7. Are the technical documentation and all other necessary documents provided, e.g.
certificates?
If one of the conditions is not satisfied, contact your Sales Center.

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3.2 Product identification
The following options are available for identification of the device:
• Nameplate specifications
• Enter the serial number from the nameplate in the Device Viewer
(www.endress.com/deviceviewer): all the information about the device and an overview
of the Technical Documentation supplied with the device are displayed.
• Enter the serial number on the nameplate into the Endress+Hauser Operations App or
scan the 2-D matrix code (QR code) on the nameplate with the Endress+Hauser
Operations App: all the information about the device and the technical documentation
pertaining to the device is displayed.
3.2.1 Nameplate
The right device?
The nameplate provides you with the following information on the device:
• Manufacturer identification, device designation
• Order code
• Extended order code
• Serial number
• Tag name (TAG)
• Technical values: supply voltage, current consumption, ambient temperature,
communication-specific data (optional)
• Degree of protection
• Approvals with symbols
‣Compare the information on the nameplate with the order.
3.2.2 Name and address of manufacturer
Name of manufacturer: Endress+Hauser Wetzer GmbH + Co. KG
Address of manufacturer: Obere Wank 1, D-87484 Nesselwang or www.endress.com
3.3 Storage and transport
Storage temperature: –40 to +80 °C (–40 to +176 °F)
Maximum relative humidity: < 95 % as per IEC 60068-2-30
Pack the device for storage and transportation in such a way that it is reliably
protected against impact and external influences. The original packaging offers the
best protection.
Avoid the following environmental influences during storage:
• Direct sunlight
• Proximity to hot objects
• Mechanical vibration
• Aggressive media
3.4 Certificates and approvals
Current certificates and approvals for the product are available at www.endress.com on the
relevant product page:
1. Select the product using the filters and search field.
2. Open the product page.
3. Select Downloads.

Mounting RIA14
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3.4.1 UL approval
More information under UL Product iq™, search for keyword "E225237")
4 Mounting
4.1 Mounting requirements
The device is designed for use in the field.
The orientation is determined by the legibility of the display.
Operating temperature range:
• –40 to +80 °C (–40 to +176 °F)
• –20 to +80 °C (–4 to +176 °F) when using the open collector output
Operating the device in the upper temperature limit range decreases the operating life
of the display.
The display may react slowly at temperatures < –20 °C (–4 °F).
At temperatures < –30 °C (–22 °F) the readability of the display can no longer be
guaranteed.
Altitude Up to 2 000 m (6 561.7 ft) above sea level
Overvoltage category Overvoltage category II
Pollution degree Pollution degree 2
4.1.1 Dimensions
The dimensions of the device are provided in the "Technical data" section of the Operating
Instructions.
132 (5.2)
135 (5.3)
112 (4.4)
166 (6.5)
106 (4.2) 121 (4.8)
121 (4.8)
!6.4
(0.25)
A0011152
 1 Device dimensions; specified in mm (in)
4.1.2 Mounting location
Information about the conditions (such as the ambient temperature, degree of protection,
climate class, etc.) that must be present at the mounting location so that the device can be
mounted correctly is provided in the "Technical data" section.
4.2 Mounting the measuring device
The device can either be mounted directly on the wall or mounted on a pipe using the
optional mounting kit →  9.

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The backlit display can be mounted in four different positions →  8.
It is essential that you clean and lubricate the thread prior to mounting.
4.2.1 Turning the display
Pos. 1
2
3
1
4
1.
2.
90°
90° 90°
Pos. 2 Pos. 3 Pos. 4
3.
A0023724
 2 Field indicator, 4 display positions, can be fitted in 90° steps
The display can be turned in 90° steps.
1. Remove the cover clamp (1) and the housing cover (2).
2. Remove the display (3) from the electronics unit (4).
3. Turn the display to the desired position and then attach it to the electronics unit.
4. Clean the thread in the housing cover and housing base and lubricate if necessary.
(Recommended lubricant: Klüber Syntheso Glep 1)
5. Screw the housing cover (2) and O-ring together and fit the cover clamp (1) back on.
4.2.2 Direct wall mounting
Procedure for direct wall mounting of the device:
1. Drill 2 holes (see dimensions, →  1,  8)
2. Attach the device to the wall with 2 screws ⌀5 mm (0.2 in).
4.2.3 Pipe mounting
The mounting bracket is suitable for pipes with a diameter of 38 to 84 mm (1.5 to 3.3 in).

Electrical connection RIA14
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1
2
3
1.
2.
3.
A0011258
 3 Pipe mounting of the device with mounting bracket
1 Mounting plate
2 Mounting bracket
3 2 M6 nuts
1. Applies to pipes with a diameter of 38 to 56 mm (1.5 to 2.2 in).
Attach the mounting bracket to the pipe.
2. Push the mounting plate onto the mounting bracket.
3. Fit the device on the mounting bracket with the two nuts (M6) supplied. The
mounting plate is not necessary for pipes with a diameter of
56 to 84 mm (2.2 to 3.3 in).
4.3 Post-installation check
Perform the following checks after mounting the device:
Device condition and specifications Notes
Is the measuring device damaged? Visual inspection
Is the seal undamaged? Visual inspection
Is the device fixed securely to the wall or mounting plate? -
Is the housing cover firmly mounted? -
Does the device match the measuring point specifications (ambient temperature,
measuring range etc.)?
See "Technical data" section
5 Electrical connection
5.1 Connection requirements
For information on the connection data, see the "Technical data" section.
NOTICE
Destruction or malfunction of parts of the electronics
‣ ESD - Electrostatic discharge. Protect the terminals from electrostatic discharge.
LCAUTION
Destruction of parts of the electronics
‣Switch off the power supply before installing and connecting the device.

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Endress+Hauser 11
NOTICE
Loss of Ex approval if connected incorrectly
‣When connecting Ex-certified devices, please take special note of the instructions and
connection schematics in the Ex-specific supplement to these Operating Instructions.
First open the housing of the device.
1.
2.
3.
4.
5.
A0011259
 4 Open the housing of the field indicator
5.2 Connecting the device
3
21+
-
loop power
supply
active
passive
Open Collector
loop power
supply
A0051890
 5 Terminal assignment of the field indicator
Terminal Terminal assignment Input and output
+ Measuring signal (+) 4 to 20 mA Signal input
- Measuring signal (-) 4 to 20 mA Signal input

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Terminal Terminal assignment Input and output
1 Terminal for further instruments Support terminal
2 Digital limit switch (collector) Switch output
3 Digital limit switch (emitter) Switch output
Both the terminal assignment and the connection values of the device correspond to those
of the Ex-version. The device is only designed for operation in a 4 to 20 mA measuring
circuit. There must be potential equalization along the circuits (within and outside the
hazardous area).
5.3 Ensuring the degree of protection
The devices meet all the requirements of IP67. It is absolutely essential to comply with the
following points to ensure this protection is guaranteed after mounting or servicing the
device:
• The housing seal must be clean and undamaged when inserted into the groove. The seal
must be cleaned, dried or replaced if necessary.
• The cables used for connection must have the specified outer diameter (e.g., M20 x 1.5,
cable diameter 8 to 12 mm (0.3 to 0.47 in)).
• Route the cable in a loop before cable entry (→  6,  12). This means that any
moisture that may form cannot enter the gland. Mount the measuring device so that the
cable entries are not facing upwards.
• Replace unused cable entries with dummy plugs.
• Do not remove the grommet used from the cable entry.
• The housing cover and the cable entry must be firmly tightened.
A0011260
 6 Connection tips to retain IP67 protection
5.4 Post-connection check
Perform the following checks after electrical installation:
Device condition and specifications Note
Are cables or the device damaged? Visual inspection
Electrical connection Note
Is the cable type route completely isolated? No loops and cross-overs? -
Are the mounted cables strain-relieved? -
Is the terminal assignment correct? Compare the connection diagram of terminal block. →  5,  11
Are all the screws firmly tightened? Visual inspection

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Electrical connection Note
Is the cable gland sealed tight? Visual inspection
Is the housing cover firmly tightened? Visual inspection
6 Operation options
6.1 Overview of operation options
6.1.1 Display
2
1a 1b
1
3
4
5
6
A0011157
 7 LC display of the field indicator (backlit, fitted in steps of 90 °)
1 Bar graph display
1a Mark for underranging
1b Mark for overranging
2 Measured value display, digit height 20.5 mm (0.8 in)
3 14-segment display for units and messages
4 "Programming locked'' symbol
5 Unit "%"
6 "Fault" warning icon
6.2 Access to the operating menu via operating keys
NOTICE
Loss of explosion protection when housing is open
‣Parameter configuration must take place outside of the hazardous area.
A0011261
 8 Operating keys of the field indicator ("-", "+", "E")
The display must remain connected to the electronics unit during configuration.

Operation options RIA14
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1. Remove the housing cover
2. Remove the display
3. The operating keys on the device are accessible.
4. Configure the device via the operating keys.
5. Position the display at the desired angle.
6.2.1 Navigation
The operating panels are divided into 2 levels.
Menu: Various menu items can be selected in the menu level. The individual menu items
are a summary of the associated operating functions.
Operating function: An operating function can be viewed as a summary of operating
parameters. The operating functions perform the actual operation or configuration of the
device.
Operating keys:
"E" key: Enter the programming menu if the "E" key is pressed for longer than 3 seconds.
• Select operating functions.
• Apply values.
• If the "E" key is pressed for longer than 3 seconds, the display returns directly to the
Home position. You are first asked if the data entered until now should be saved.
• Save data entered.
"+ / -" selection keys:
• Select the menus.
• Configure parameters and numerical values.
• Once the operating function has been selected, the "+" or "-" keys are used to enter the
value or change the setting.
If the keys are pressed for longer, the numbers change with increasing speed.
For the "program name" and "program version" operating items, the display is scrolled
horizontally when the "+" or "-" keys are pressed as these items (7-digit) cannot be
shown completely in the 14-segment display.
6.2.2 Programming in the operating menu
E
E
E
E
E E E
7.
6.
5.
1.
2.
3.
4.
+
_
+
_
+
_
E
E
> 3 s
_
+
> 3 s
Menu
Operating function
A0051891
 9 Programming the field indicator
1. Enter the operating menu

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Endress+Hauser 15
2. Select the menu with "+" or "-"
3. Select the operating function
4. Enter parameters in editing mode (enter/select data with "+" or "-" and apply with "E")
5. Jump to the home position directly. You are first asked if the data entered until now
should be saved.
6. Exit the menu using "+ / - ". You are asked whether the data entered should be saved.
7. Confirm whether data should be saved. Select yes/no with the "+" or "-" operating key
and confirm with "E".
6.3 Structure and function of the operating menu
Menu Operating function Operating function Operating function
Parameter Default/
selection
Parameter Default/
selection
Parameter Default/
selection
Analog input
INPUT
Curve
CURV
Signal damping
DAMP
Decimal point for
measured value
DI DP
Linear LINAR 0 to 99 s 0 99.999 3 DEC
Squared SQRT 999.99 2 DEC
9 999.9 1 DEC
99 999 0 DEC
Measured value
scaling4 mA
DI LO
Measured value
scaling20 mA
DI HI
Measured value offset
OFFST
–
19 999 to 99
999
0.0 –
19 999 to 99
999
100.0 –
19 999 to 99
999
0.0
Display
DISPL
Dimension
DIM
Dimension 1)
DTEXT
None
%
Any
NO
%
TEXT
XXXXX
Limit
LIMIT
Measuring mode
MODE
Threshold
SETP
Off OFF –
19 999 to 99
999
0.0
Min. safety
with alarm
MIN
Max. safety
with alarm
MAX
Alarm ALARM
Hysteresis
HYST
Delay
DELY
–
19 999 to 99
999
0.0 0 to 99 s 0.0
Operating
parameters
PARAM
Operator code
CODE
Program name
PNAME
Firmware version
FWVER
0 to 9 999 0
NAMUR
NAMUR
NAMUR 3.6 2)
N_360
NAMUR 3.80 2)
N_380

Operation options RIA14
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Menu Operating function Operating function Operating function
Parameter Default/
selection
Parameter Default/
selection
Parameter Default/
selection
Standard dEF 0 to NAMUR
20.5
3.60 NAMUR 3.6
to NAMUR
20.5
3.80
User entry Edit
NAMUR 20.5 2)
N2050
NAMUR 21.0 2)
N2100
Test
TEST
NAMUR
3.80 to
NAMUR
21.0
20.5 20.5 to
25 mA
21.0 Off OFF
Open collect. OUT
Display DISP
Service
SERV
Service code
SCODE
Parameter reset 3)
PRSET
---- Yes YES
No NO
1) Only if DIM = TEXT
2) Only if NAMUR = Edit
3) Can only be performed by service staff
6.4 Access to the operating menu via the operating tool
6.4.1 Configuration via interface & PC configuration software
FieldCare Device Setup
LWARNING
Loss of explosion protection when housing is open
‣The device must be configured outside the hazardous area.
During configuration with FieldCare, the device may assume undefined statuses! This may
result in the undefined switching of outputs and relays.
To configure the device using the FieldCare Device Setup software, connect the device to
your PC. You need a special interface adapter for this purpose: the Commubox FXA291.
The 4-pin connector of the interface cable must be plugged into the corresponding socket
in the device and the USB connector must be plugged into a free USB port on the PC.

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Connecting the device
3
USB
1 2
A0051931
 10 Configuring the field indicator using an interface adapter
1 PC configuration software
2 Configuration kit USB box
3 Field indicator
When you connect the device, the device DTM (Device Type Manager) is not automatically
loaded in FieldCare, so you need to add the device manually.
Online configuration of parameters is not possible for the RIA14/16.
1. First add the Comm-DTM "PCP (Readwin) TXU10/FXA291" to an empty project.
2. In the Comm-DTM settings, set the baud rate to 2400 baud and select the COM port
used.
3. Add the device DTM "RIA14/16/Vx.xx.xx" to the project using the "Add device..."
function.
4. Continue with device configuration in accordance with these Operating Instructions.
The complete Setup menu, i.e. all of the parameters listed in these Operating
Instructions, can also be found in the FieldCareDevice Setup.
In general, it is possible to overwrite parameters with the FieldCare PC software and
the appropriate device DTM even if access protection is active. If access protection by
means of a code should be extended to the software, this function should be activated
in the extended device setup.
7 Commissioning
7.1 Post-installation check
Make sure that all installation and connection checks have been carried out before putting
the device into operation.
NOTICE
‣Before commissioning the device, make sure that the supply voltage matches the
voltage specifications on the nameplate. Failure to perform these checks may result in
damage to the device caused by the incorrect supply voltage.

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7.2 Switching on the device
Switch on the supply voltage. During device initialization, all segments in the display are
displayed for approx. 1 second.
7.3 Configuring the measuring device
Description of the operating functions
The following table shows the menus available for the field indicator. These are explained in
detail in the sections that follow.
Function As shown on the display
Data processing INPUT
Display DISPL
Limit values LIMIT
Other settings PARAM
Service level SERV
7.3.1 Data processing (INPUT)
Input range
INPUT → CURVE → Options: Linear (LINAR) or square root (SQRT)
The input range is a 4 to 20 mA signal. Select the type of input signal here (linear or
square).
Damping
INPUT → DAMP → Options: 0-99 (0 = no damping).
• Measured value damping can be set between 0 to 99 s .
• Only whole numbers can be entered.
• The factory setting is 0 (no damping).
Measured value scaling
Designation Description
Measured value
decimal point 'DI DP'
Indicates the number of decimal places (places after the decimal point) for the
numerical display of the measuring range
• Selection range 0-3 decimal places
• Default: 1 decimal place
If the number of decimal places is increased, the value for all the dependent operating
parameters must be recalculated based on the formula New value = Old value *
10(DPnew-DPold). If the value of one of the dependent operating parameters is < -19999
or > 99999, the number of decimal places cannot be increased and error message
C561 is shown on the display.
Measured value 0 % 'DI
LO'
Indicates the display value for the 4 mA value.
• Value range –19 999 to 99 999
• Default: 0.0

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Designation Description
Measured value 100 %
'DI HI'
Indicates the display value for the 20 mA value.
• Value range –19 999 to 99 999
• Default: 100.0
Measured value offset
'OFFST'
Used to correct the display measured value. The offset is added to the measured value.
• Value range –19 999 to 99 999
• Default: 0.0
Measured value 0 % and 100 % should not be identical. However, the 0 % measured
value can be larger than the 100 % measured value (invert).
7.3.2 Display (DISPL)
Dimension
DIM → Options: NO, °C, K, °F, % or TEXT
You can choose one of the measurement units permanently stored in the display (°C, K, °F,
%). Alternatively, you can configure a unit of your choice on the 14-segment display
(TEXT).
The character set consists of the following characters: Characters A-Z, abcdhijlmnoruvwy,
the digits 0-9 and the special characters: - + * / ( ).
Configuring the editable unit (DTEXT)
DIM → DTEXT → Enter a unit that can be edited as required
To configure the editable unit, all 5 points on the 14-segment display must be configured.
Press the E key to edit the next letter. Accept the set unit with "E".
1.
2.
3.
4.
5.
E
E E E E
E
+/- +/- +/- +/- +/-
Esc
Esc Esc Esc
Esc
A0051908
Configuring the editable unit
1. Press the E key to select the desired operating function.
2. Press the E key to select the next point of the 5-digit 14-segment display.
3. Press the + or - key to select the next/previous character for the point selected.
4. If you press the +/- keys simultaneously, data entry is aborted and the operating
function is displayed.
5. When you confirm the fifth position of the display with E, the entry is accepted and
you switch to the operating function.

Commissioning RIA14
20 Endress+Hauser
7.3.3 Limit values (LIMIT)
In the event of a limit value violation and a fault, the OC output is de-energized in
accordance with the closed circuit current principle.
If a limit value violation MIN (lower limit) occurs, ’LIMIN’ is displayed in the 14-segment
display. If a limit value violation MAX (upper limit) occurs, ’LIMAX’ is displayed.
Operating mode
LIMIT → MODE → Options OFF, MIN, MAX, ALARM
Use this function to select limit value and fault monitoring.
Options for selection: MIN, MAX, ALARM or OFF
• MIN = lower limit value
• MAX = upper limit value
• ALARM = in the event of a device fault
• Default: OFF = no limit value or fault monitoring
Switching threshold
LIMIT → SETP → Options –19 999 to 99 999
Measured value at which a change in the switching status occurs
• Value range: –19 999 to 99 999
• Default 0
Hysteresis
LIMIT → HYST → Options –19 999 to 99 999
Use this function to enter the hysteresis for the switching threshold at minimum/
maximum safety.
• Value range: –19 999 to 99 999
• Default 0
Delay
LIMIT → DELY → Options 0 to 99 s
Setting of the response delay (in seconds) of the limit value event after reaching the
switching threshold.
• Value range: 0 to 99 s
• Default 0
7.3.4 Other settings (PARAM)
User code - Locking
PARAM → CODE → User code entry
The device can be locked to protect the processes against unauthorized and undesired
interference. The device parameters are protected by a 4-digit user code and cannot be
altered without entering the code.
User code: Once assigned, a user code can only be altered if the old code is entered to
enable the device. The new code can then be set.
• Value range: 0 to 9 999
• Default 0