Endress+Hauser Ceraphant PTP31B, Ceraphant PTP33B Operating Instructions Manual

E
Products Solutions Services
Operating Instructions
Ceraphant PTP31B, PTP33B
Process pressure measurement Pressure switch for safe measurement and monitoring of absolute and gauge pressure
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer
Endress+Hauser Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555
• Make sure the document is stored in a safe place such that it is always available when working on or with the device.
• To avoid danger to individuals or the facility, read the "Basic safety instructions" section carefully, as well as all other safety instructions in the document that are specific to working procedures.
• The manufacturer reserves the right to modify technical data without prior notice. Your Endress+Hauser distributor will supply you with current information and updates to these Instructions.
2 Endress+Hauser

Table of contents

Table of contents
1 Document information .............. 5
1.1 Document function ..................... 5
1.2 Symbols used .......................... 5
1.3 Documentation ........................ 6
1.4 Terms and abbreviations ................. 7
1.5 Turn down calculation ................... 8
2 Basic safety instructions ............ 9
2.1 Requirements concerning the staff .......... 9
2.2 Designated use ........................ 9
2.3 Workplace safety ...................... 10
2.4 Operational safety ..................... 10
2.5 Product safety ........................ 10
3 Product description ................ 11
3.1 Product design ........................ 11
3.2 Function ............................ 11
4 Incoming acceptance and product
identification ..................... 12
4.1 Incoming acceptance ................... 12
4.2 Product identification ................... 13
4.3 Storage and transport .................. 13
5 Installation ....................... 15
5.1 Mounting dimensions .................. 15
5.2 Installation conditions .................. 15
5.3 Influence of the installation position ........ 15
5.4 Mounting location ..................... 16
5.5 Post-installation check .................. 18
6 Electrical connection .............. 19
6.1 Connecting the measuring unit ............ 19
6.2 Relay switching capacity ................. 20
6.3 Connection conditions .................. 21
6.4 Connection data ....................... 21
6.5 Post-connection check .................. 21
7 Operation options ................. 22
7.1 Operation with an operating menu ......... 22
7.2 Structure of the operating menu ........... 22
7.3 Operation with local display .............. 22
7.4 General value adjustment and rejection of
illegal entries ......................... 23
7.5 Navigation and selection from list ......... 23
7.6 Locking and unlocking operation .......... 24
7.7 Navigation examples ................... 26
7.8 Status LEDs .......................... 26
7.9 Resetting to factory settings (reset) ........ 26
8 Commissioning .................... 27
8.1 Function check ....................... 27
8.2 Enabling configuration/operation .......... 27
8.3 Commissioning with an operating menu ..... 27
8.4 Configuring pressure measurement (only for
devices with a current output) ............ 27
8.5 Performing position adjustment ........... 29
8.6 Configuring process monitoring ........... 32
8.7 Functions of switch output ............... 32
8.8 Current output ........................ 35
8.9 Application examples ................... 37
8.10 Configuring the local display ............. 37
8.11 Protecting settings from unauthorized
access .............................. 38
9 Diagnostics and troubleshooting ... 39
9.1 Troubleshooting ...................... 39
9.2 Diagnostic events ...................... 40
9.3 Behavior of the device in the event of a
fault ............................... 42
9.4 Response of output to errors .............. 42
9.5 Behavior of the device in the event of a
voltage drop ......................... 43
9.6 Behavior of the device in the event of an
incorrect entry ....................... 43
9.7 Disposal ............................ 43
10 Maintenance ...................... 44
10.1 Exterior cleaning ...................... 44
11 Repair ............................ 45
11.1 General notes ........................ 45
11.2 Return .............................. 45
12 Overview of the operating menu .... 46
13 Description of device parameters ... 49
13.1 Switch output 1 and switch output 2 ........ 49
13.2 Current output ........................ 53
13.3 EF menu (extended functions) ............ 54
13.4 DIAG menu (diagnosis) ................. 64
14 Accessories ....................... 66
14.1 Weld-in adapter ...................... 66
14.2 Process adapter M24 ................... 66
14.3 M12 plug connectors ................... 67
15 Technical data .................... 68
15.1 Input ............................... 68
15.2 Output ............................. 70
Endress+Hauser 3
Table of contents
15.3 Performance characteristics of metallic
process isolating diaphragm .............. 73
15.4 Environment ......................... 75
15.5 Process ............................. 76
Index .................................. 77
4 Endress+Hauser
Ceraphant PTP31B, PTP33B Document information
DANGER
WARNING
CAUTION
NOTICE

1 Document information

1.1 Document function

These Operating Instructions contain all the information that is required in 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.

1.2 Symbols used

1.2.1 Safety symbols

Symbol Meaning
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.
NOTE!
This symbol contains information on procedures and other facts which do not result in personal injury.

1.2.2 Electrical symbols

Symbol Meaning Symbol Meaning
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding system.

1.2.3 Tool symbols

Symbol Meaning
Open-ended wrench
A0011222

1.2.4 Symbols for certain types of information

Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Endress+Hauser 5
Document information Ceraphant PTP31B, PTP33B
A
,…,
1.
2.
3.
,…,
1.
2.
3.
Symbol Meaning
Reference to documentation
Reference to page
Reference to graphic
Series of steps
Result of a step
Visual inspection

1.2.5 Symbols in graphics

Symbol Meaning
1, 2, 3 ... Item numbers
Series of steps
A, B, C, ... Views

1.3 Documentation

The document types listed are available: In the Download Area of the Endress+Hauser Internet site: www.endress.com → Download

1.3.1 Technical Information (TI): planning aid for your device

PTP31B: TI01130P
PTP33B: TI01246P
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.

1.3.2 Brief Operating Instructions (KA): getting the 1st measured value quickly

KA01163P:
The Brief Operating Instructions contain all the essential information from incoming acceptance to initial commissioning.
6 Endress+Hauser
Ceraphant PTP31B, PTP33B Document information
URL OPLMWP
LRL
0
p
LRV
URV
1
2
3
4

1.4 Terms and abbreviations

A0029505
Item Term/
abbreviation
1 OPL The OPL (over pressure limit = sensor overload limit) for the measuring device
2 MWP The MWP (maximum working pressure) for the sensors depends on the lowest-
3 Maximum sensor
measuring range
4 Calibrated/adjusted
span
p - Pressure
- LRL Lower range limit
- URL Upper range limit
- LRV Lower range value
- URV Upper range value
- TD (turn down) Turn down
Explanation
depends on the lowest-rated element, with regard to pressure, of the selected components, i.e. the process connection has to be taken into consideration in addition to the measuring cell. Also observe pressure-temperature dependency. For the relevant standards and additional notes, see the "Pressure specifications" section →  76 . The OPL may only be applied for a limited period of time.
rated element, with regard to pressure, of the selected components, i.e. the process connection has to be taken into consideration in addition to the measuring cell. Also observe pressure-temperature dependency. For the relevant standards and additional notes, see the "Pressure specifications" section →  76 . The MWP may be applied at the device for an unlimited period. The MWP can also be found on the nameplate.
Span between LRL and URL This sensor measuring range is equivalent to the maximum calibratable/adjustable span.
Span between LRV and URV Factory setting: 0 to URL Other calibrated spans can be ordered as customized spans.
Example - see the following section.
Endress+Hauser 7
Document information Ceraphant PTP31B, PTP33B
LRV
URLURV
LRL
1 = 2
3

1.5 Turn down calculation

A0029545
1 Calibrated/adjusted span 2 Zero point-based span 3 URL sensor
Example
• Sensor:10 bar (150 psi)
• Upper range value (URL) = 10 bar (150 psi)
Turn down (TD):
• Calibrated/adjusted span: 0 to 5 bar (0 to 75 psi)
• Lower range value (LRV) = 0 bar (0 psi)
• Upper range value (URV) = 5 bar (75 psi)
TD =
URL
|URV - LRV|
10 bar (150 psi)
TD =
|5 bar (75 psi) - 0 bar (0 psi)|
In this example, the TD is 2:1. This span is based on the zero point.
= 2
8 Endress+Hauser
Ceraphant PTP31B, PTP33B Basic safety instructions

2 Basic safety instructions

2.1 Requirements concerning the staff

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 beginning work, the specialist staff must have read and understood the
instructions in the Operating Instructions and supplementary documentation as well as in the certificates (depending on the application) Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
Being instructed and authorized according to the requirements of the task by the
facility's owner-operator Following the instructions in these Operating Instructions

2.2 Designated use

2.2.1 Application and media

The Ceraphant is a pressure switch for measuring and monitoring absolute and gauge pressure in industrial systems. The process-wetted materials of the measuring device must have an adequate level of resistance to the media.
The measuring device may be used for the following measurements (process variables)
• in compliance with the limit values specified under "Technical data"
• in compliance with the conditions that are listed in this manual.
Measured process variable
Gauge pressure or absolute pressure
Calculated process variable
Pressure

2.2.2 Incorrect use

The manufacturer is not liable for damage caused by improper or non-designated use.
Verification for borderline cases:
For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistance
in verifying the corrosion resistance of process-wetted materials, but does not accept any warranty or liability.

2.2.3 Residual risks

When in operation, the housing may reach a temperature close to the process temperature.
Danger of burns from contact with surfaces!
For elevated process temperatures, ensure protection against contact to prevent burns.
Endress+Hauser 9
Basic safety instructions Ceraphant PTP31B, PTP33B

2.3 Workplace safety

For work on and with the device:
Wear the required personal protective equipment according to federal/national
regulations. Switch off the supply voltage before connecting the device.

2.4 Operational safety

Risk of injury!
Operate the device in proper technical condition and fail-safe condition only.
The operator is responsible for interference-free operation of the device.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable dangers.
If, despite this, modifications are required, consult with Endress+Hauser.
Hazardous area
To eliminate the risk of danger to persons or the facility when the device is used in the approval-related area (e.g. pressure equipment safety):
Check the nameplate to verify if the device ordered can be put to its intended use in the
approval-related area.

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. Endress+Hauser confirms this by affixing the CE mark to the device.
10 Endress+Hauser
Ceraphant PTP31B, PTP33B Product description
A B C
D
E
D
E

3 Product description

3.1 Product design

Overview Item Description
A Valve plug
B Cable
C M12 plug
Housing cap made of plastic
A0022015
D
Housing
E
Process connection (sample illustration)
A0027215
A0027227

3.2 Function

3.2.1 Calculating the pressure

Devices with metallic process isolating diaphragm
The process pressure deflects the metal process isolating diaphragm of the sensor and a fill fluid transfers the pressure to a Wheatstone bridge (semiconductor technology). The pressure-dependent change in the bridge output voltage is measured and evaluated.
Endress+Hauser 11

Incoming acceptance and product identification Ceraphant PTP31B, PTP33B

DELIVERY NOTE
1 = 2
E
E
DELIVERYNOTE
E
4 Incoming acceptance and product
identification

4.1 Incoming acceptance

A0028673
A0016870
Is the order code on the delivery note (1) identical to the order code on the product sticker (2)?
A0028673
A0028673
A0022099
A0022101
Are the goods undamaged?
A0022104
Do the data on the nameplate correspond to the order specifications and the delivery note?
12 Endress+Hauser
Ceraphant PTP31B, PTP33B Incoming acceptance and product identification
Ser. no.:
Ord. cd.:
Ext. ord. cd.:
D-79689 Maulburg
Made in Germany,
Ceraphant
5
1 2
3 4
Date:
TAG:
A0028673
A0022106
Is the documentation available? If required (see nameplate): Are the safety instructions (XA) present?
If one of these conditions does not apply, please contact your Endress+Hauser sales office.

4.2 Product identification

The following options are available for identification of the measuring device:
• Nameplate specifications
• Order code with breakdown of the device features on the delivery note
• Enter serial numbers from nameplates in W@M Device Viewer (www.endress.com/deviceviewer): All information about the measuring device is displayed.
For an overview of the technical documentation provided, enter the serial number from the nameplates in the W@M Device Viewer (www.endress.com/deviceviewer)

4.2.1 Nameplate

1 Manufacturer's address 2 Device name 3 Order number 4 Serial number 5 Extended order number

4.3 Storage and transport

4.3.1 Storage conditions

A0030101
Use original packaging.
Store the measuring device in clean and dry conditions and protect from damage caused by shocks (EN 837-2).
Storage temperature range
–40 to +85 °C (–40 to +185 °F)
Endress+Hauser 13
Incoming acceptance and product identification Ceraphant PTP31B, PTP33B

4.3.2 Transporting the product to the measuring point

WARNING
L
Incorrect transport!
Housing and diaphragm may become damaged, and there is a risk of injury!
Transport the measuring device to the measuring point in its original packaging or by
the process connection.
14 Endress+Hauser
Ceraphant PTP31B, PTP33B Installation
1
1
1
1
C
A
B

5 Installation

5.1 Mounting dimensions

For dimensions, see the "Mechanical construction" section in the Technical Information.

5.2 Installation conditions

• No moisture may enter the housing when installing or operating the device, or when establishing the electrical connection.
• Do not clean or touch process isolating diaphragms with hard and/or pointed objects.
• Do not remove the protector on the process isolating diaphragm until just before installation.
• Always firmly tighten the cable entry.
• Point the cable and connector downwards where possible to prevent moisture from entering (e.g. rain or condensation water).
• Protect the housing from impact
• The following instruction applies for devices with a gauge pressure sensor and M12 plug or valve plug:
NOTICE
If a heated device is cooled during the cleaning process (e.g. by cold water), a vacuum develops for a short time, whereby moisture can penetrate the sensor through the pressure compensation element (1).
Device could be destroyed!
In this case, mount the device with the pressure compensation element (1) pointing
diagonally downwards where possible or to the side.
A0022252

5.3 Influence of the installation position

Any orientation is possible. However, the orientation may cause a zero point shift i.e. the measured value does not show zero when the vessel is empty or partially full.
A0024708
Process isolating diaphragm axis is horizontal (A)
Calibration position, no effect Up to +4 mbar (+0.058 psi) Up to –4 mbar (–0.058 psi)
Process isolating diaphragm pointing upwards (B)
Process isolating diaphragm pointing downwards (C)
A position-dependent zero shift can be corrected on the device .
Endress+Hauser 15
Installation Ceraphant PTP31B, PTP33B
1
2
1
1
2
2
3
4

5.4 Mounting location

5.4.1 Pressure measurement

Functional testing can be carried out more easily if you mount the device downstream from a shutoff device.
Pressure measurement in gases
Mount the device with shutoff device above the tapping point so that any condensate can flow into the process.
A0025920
1 Device 2 Shutoff device
Pressure measurement in vapors
For pressure measurement in vapors, use a siphon. The siphon reduces the temperature to almost ambient temperature. Preferably mount the device with the shutoff device and siphon below the tapping point.
Advantage:
• defined water column causes only minor/negligible measuring errors and
• only minor/negligible heat effects on the device.
Mounting above the tapping point is also permitted.
Note the max. permitted ambient temperature of the transmitter!
Take the influence of the hydrostatic water column into consideration.
A0025921
1 Device
16 Endress+Hauser
2 Shutoff device 3 Siphon 4 Siphon
Ceraphant PTP31B, PTP33B Installation
1
2
3
Pressure measurement in liquids
Mount the device with a shutoff device and siphon below or at the same height as the tapping point.
Advantage:
• defined water column causes only minor/negligible measuring errors and
• air bubbles can be released to the process.
Take the influence of the hydrostatic water column into consideration.
1 Device 2 Shutoff device 3 Siphon

5.4.2 Level measurement

• Always install the device below the lowest measuring point.
• Do not install the device at the following positions: – In the filling curtain – In the tank outlet – In the suction area of a pump – Or at a point in the tank which could be affected by pressure pulses from the agitator.
• Functional testing can be carried out more easily if you mount the device downstream from a shutoff device.
A0025922
Endress+Hauser 17
A0025923
Installation Ceraphant PTP31B, PTP33B

5.5 Post-installation check

 Is the device undamaged (visual inspection)?
Does the device conform to the measuring point specifications?
For example:
• Process temperature
• Process pressure
• Ambient temperature range
• Measuring range
 Are the measuring point identification and labeling correct (visual inspection)?
 Is the device adequately protected from precipitation and direct sunlight?
 Are the securing screws tightened securely?
 Does the pressure compensation element point downwards at an angle or to the side?
 To prevent the penetration of moisture: are the connecting cables/plugs pointing downwards?
18 Endress+Hauser
Ceraphant PTP31B, PTP33B Electrical connection
L–
L+
0.63A
2
1
3
4
R1
R1
"
L–
L+
1
2
3
4
0.63A
L–
L+
1
2a
3 4 2b
R1
"
(a)
0.63A

6 Electrical connection

6.1 Connecting the measuring unit

6.1.1 Terminal assignment

WARNING
L
Risk of injury from the uncontrolled activation of processes!
Switch off the supply voltage before connecting the device.
Make sure that downstream processes are not started unintentionally.
WARNING
L
Limitation of electrical safety due to incorrect connection!
In accordance with IEC/EN61010 a separate circuit breaker must be provided for the
device . The device must be operated with a 630 mA fine-wire fuse (slow-blow).
Protective circuits against reverse polarity are integrated.
NOTICE
Damage to analog input of PLC resulting from incorrect connection
Do not connect the active PNP switch output of the device to the 4 to 20 mA input of a
PLC.
Connect the device in the following order:
1. Check whether the supply voltage matches the supply voltage indicated on the nameplate.
2. Connect device in accordance with the following diagram.
Switch on supply voltage.
For devices with a cable connection: do not close reference air hose (see (a) in the following drawings)! Protect reference air hose against penetration by water/condensate.
1 x PNP switch output R1
M12 plug Valve plug Cable
A0029268
A0023271
A0022801
1 brown = L+ 2a black = switch output 1 2b white = not assigned 3 blue = L­4 green/yellow = ground (a) reference air hose
Endress+Hauser 19
Electrical connection Ceraphant PTP31B, PTP33B
L–
L+
2
1
3
4
R1
R2
0.63A
L–
L+
1
2b
2a
3 4
R2
(a)
0.63A
R1
"
L–
L+
2
1
3
4
R1
0.63A
L–
L+
1
2b
2a
3 4
(a)
0.63A
R1
"
2 x PNP switch outputs R1 and R2
M12 plug Valve plug Cable
-
A0023248
A0023282
1 brown = L+ 2a black = switch output 1 2b white = switch output 2 3 blue = L­4 green/yellow = ground (a) reference air hose
1 x PNP switch output R1 with additional analog output 4 to 20 mA (active)
M12 plug Valve plug Cable
-
A0023249
1 brown = L+ 2a black = switch output 1 2b white = analog output 4 to 20 mA 3 blue = L­4 green/yellow = ground (a) reference air hose

6.1.2 Supply voltage

Supply voltage: 10 to 30 V DC

6.1.3 Current consumption and alarm signal

Intrinsic power consumption Alarm current (for devices with analog output)
≤ 60 mA ≥21 mA (factory setting)

6.2 Relay switching capacity

• Switch state ON: Ia ≤ 250 mA; switch state OFF: Ia ≤1 mA
• Switch cycles: >10,000,000
• Voltage drop PNP: ≤2 V
• Overload protection: Automatic load testing of switching current; – Max. capacitance load: 14 μF at max. supply voltage (without resistive load) – Max. cycle duration: 0.5 s; min. ton: 4 ms – Periodic disconnection from protective circuit in the event of overcurrent (f = 2 Hz) and
"F804" display
A0030519
20 Endress+Hauser
Ceraphant PTP31B, PTP33B Electrical connection
[ ]W
20 30
10
0
1022
587
152
U [V]
1
2
R
R
L
L
max
max
£
-U 6.5V
23mA
B
B

6.3 Connection conditions

6.3.1 Cable specification

For valve plug: < 1.5 mm2 (16 AWG) and Ø3.5 to 6.5 mm (0.14 to 0.26 in)

6.4 Connection data

6.4.1 Load (for devices with analog output)

The maximum load resistance depends on the terminal voltage and is calculated according to the following formula:
1 Power supply 10 to 30 V DC 2 R
UBSupply voltage
maximum load resistance
Lmax
When excessively high load:
• Output of the fault current and display of " S803 "
• Periodic review whether error condition may be left

6.5 Post-connection check

 Is the device or cable undamaged (visual check)?
 Do the cables comply with the requirements ?
 Do the cables have adequate strain relief?
 Are all the cable glands installed, firmly tightened and leak-tight?
 Does the supply voltage match the specifications on the nameplate?
 Is the terminal assignment correct ?
 If required: Has protective ground connection been established ?
If supply voltage is present, is the device ready for operation and do values appear on the display module or
is the green LED lit on the electronic insert?
A0031107
Endress+Hauser 21
Operation options Ceraphant PTP31B, PTP33B

7 Operation options

7.1 Operation with an operating menu

7.1.1 Operating concept

Operation with an operating menu is based on an operation concept with "user roles" .
User role Meaning
Operator (display level)
Maintenance (user level)
Operators are responsible for the devices during normal "operation". This is usually limited to reading process values either directly at the device or in a control room. Should an error occur, these users simple forward the information on the errors but do not intervene themselves.
Service engineers usually work with the devices in the phases following device commissioning. They are primarily involved in maintenance and troubleshooting activities for which simple settings have to be made at the device. Technicians work with the devices over the entire life cycle of the product. Thus, commissioning and advanced settings and configurations are some of the tasks they have to carry out.

7.2 Structure of the operating menu

The menu structure has been implemented according to VDMA 24574-1 and complemented by Endress+Hauser-specific menu items.
User role Submenu Meaning/use
Operator (display level)
Maintenance (user level)
Display/operat. Display of measured values, fault and information messages
Parameters on the topmost menu level.
EF The submenu "EF" contains additional parameters which allow more
DIAG Contains all the parameters that are needed to detect and analyze
Contains all the parameters that are needed to commission measuring operations. A wide range of parameters, which can be used to configure a typical application, is available at the start. After making settings for all these parameters, the measuring operation should be completely configured in the majority of cases.
accurate configuration of the measurement, conversion of the measured value and scaling of the output signal.
operating errors.
For an overview of the entire operating menu, see the →  46

7.3 Operation with local display

7.3.1 Overview

A 1-line liquid crystal display (LCD) is used for display and operation. The local display shows measured values, fault messages and information messages and therefore supports the user through each operating step.
The display is fixed to the housing and the values can be rotated electronically by 180° (see parameter description for "DRO" →  62). This ensures optimum readability of the local display and allows the device to be mounted upside down also.
During measuring operation, the display shows measured values, fault messages and notice messages. In addition, it is possible to switch to menu mode via the operating keys.
22 Endress+Hauser
Ceraphant PTP31B, PTP33B Operation options
2
E
54
3
1
A0022121
1 Operating keys 2 Status LED 3 Switch output LEDs 4 Measured value 5 Unit

7.4 General value adjustment and rejection of illegal entries

Parameter (not numerical value) is flashing: parameter can be adjusted or selected.
When adjusting a numerical value: the numerical value does not flash. The first digit of the numerical value starts to flash only when the  key is pressed by way of confirmation. Enter the desired value with the  or  key and press the  key to confirm. Following confirmation, the data are recorded directly and are active. – Entry is OK: value is accepted and shown for one second on the display against a white
background.
– Entry is not OK: the message "FAIL" appears for one second on the display against a red
background. The value entered is rejected. In the event of an incorrect setting which effects the TD, an diagnostic message is issued.

7.5 Navigation and selection from list

The capacitive operating keys are used for navigation in the operating menu and to select an option from a picklist.
Operating key(s) Meaning
• Navigate downwards in the picklist
A0017879
A0017880
A0017881
Simultaneously ESC functions:
and
A0017879
• Edit the numerical values and characters within a function
• Navigate upwards in the picklist
• Edit the numerical values and characters within a function
• Confirm entry
• Jump to the next item
• Selection of a menu item and activation of edit mode
• The key lock function (KYL) is accessed by pressing the key for longer than 2 seconds
• Exit edit mode for a parameter without saving the changed value.
• You are in a menu at a selection level. Each time you press the keys simultaneously, you
A0017880
go up a level in the menu.
• Long ESC: press the keys for longer than 2 seconds
Endress+Hauser 23
Operation options Ceraphant PTP31B, PTP33B

7.6 Locking and unlocking operation

The device features
• Automatic key locking
• Parameter settings lock.
Key locking is indicated on the local display by "E > 2".
Locking of the parameter settings is indicated as soon as an attempt is made to change a parameter.

7.6.1 Disabling the key lock

The keys are locked automatically if the device remains at the topmost menu level (display of pressure measurement value) for 60 seconds.
Call up the key lock function (KYL)
1. Press the  key for at least 2 seconds and then release it
2. By confirming with  "ON" is displayed
3. Use  and  to toggle between "ON" and "OFF"
4. Key locking is disabled as soon as  is pressed to confirm "OFF"
The display changes to the main value level (topmost menu level) if the  key is pressed briefly. The display changes to the key locking if the  key is pressed for at least 2 seconds.
If in the case of "KYL", "ON" or "OFF", more than 10 seconds elapse without a key being pressed, you return to the topmost menu level with active key locking.
The function can be accessed anytime outside the main measured value display and within the operating menu, i.e. if the  key is pressed for at least 2 seconds key locking can be performed anytime at any menu item. Locking is effective immediately. If you quit the context menu, you will return to the same point from which key locking was selected.

7.6.2 Locking parameter settings

COD locking code
Navigation EF → ADM → COD
Description A code can be entered to protect parameter settings against unauthorized and unwanted
access.
Selection
Factory setting 0000
To lock: Enter a number ¹ the LCK release code (value range: 1 to 9999).

7.6.3 Unlocking parameter settings

If parameters are locked, the word "LCK" appears on the local display as soon as an attempt is made to change a parameter.
LCK unlocking code
24 Endress+Hauser
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