Endress+Hauser Cerabar PMP51B User manual

Products Solutions Services
Operating Instructions
Cerabar PMP51B
Process pressure measurement
PROFINET with Ethernet-APL
advanced physical layer
BA02228P/00/EN/02.23-00
71605806
2023-02-22
Valid as of version
01.00.zz (Device firmware)

Cerabar PMP51B PROFINET with Ethernet-APL
2 Endress+Hauser
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
• 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. The
Endress+Hauser sales organization will supply you with current information and updates
to these instructions.

Cerabar PMP51B PROFINET with Ethernet-APL Table of contents
Endress+Hauser 3
Table of contents
1 About this document ............... 5
1.1 Document function ..................... 5
1.2 Symbols ............................. 5
1.3 List of abbreviations ..................... 7
1.4 Documentation ........................ 7
1.5 Registered trademarks ................... 7
2 Basic safety instructions ............ 8
2.1 Requirements for the personnel ............ 8
2.2 Intended use .......................... 8
2.3 Workplace safety ....................... 8
2.4 Operational safety ...................... 8
2.5 Product safety ......................... 9
2.6 IT security ............................ 9
2.7 Device-specific IT security ................ 9
3 Product description ............... 11
3.1 Product design ....................... 11
4 Incoming acceptance and product
identification ..................... 14
4.1 Incoming acceptance ................... 14
4.2 Product identification ................... 14
4.3 Storage and transport .................. 15
5 Mounting ......................... 16
5.1 Mounting requirements ................. 16
5.2 Mounting the device ................... 18
5.3 Post-mounting check ................... 25
6 Electrical connection .............. 26
6.1 Connecting requirements ............... 26
6.2 Connecting the device .................. 26
6.3 Ensuring the degree of protection ......... 29
6.4 Post-connection check .................. 30
7 Operation options ................. 31
7.1 Overview of operation options ............ 31
7.2 Operating keys and DIP switches on the
electronic insert ....................... 31
7.3 Structure and function of the operating
menu .............................. 31
7.4 local display ......................... 31
7.5 Access to operating menu via web browser ... 33
7.6 Access to the operating menu via the
operating tool ........................ 37
8 System integration ................ 39
8.1 Overview of device description files ......... 39
8.2 Device master file (GSD) ................. 39
8.3 Cyclic data transmission ................ 41
8.4 System redundancy S2 .................. 43
9 Commissioning ................... 44
9.1 Preliminaries ........................ 44
9.2 Function check ....................... 44
9.3 Establishing a connection via FieldCare and
DeviceCare .......................... 44
9.4 Hardware settings ..................... 45
9.5 Configuring the communication parameters
via the software ...................... 45
9.6 Setting the operating language ........... 46
9.7 Configuring the device .................. 46
9.8 "Simulation" submenu ................... 49
9.9 Protecting settings from unauthorized
access .............................. 50
10 Operation ......................... 52
10.1 Reading off the device locking status ....... 52
10.2 Reading off measured values ............. 52
10.3 Adapting the device to process conditions .... 52
11 Diagnostics and troubleshooting ... 54
11.1 General troubleshooting ................. 54
11.2 Diagnostics information via LED ........... 56
11.3 Diagnostic information on local display ...... 57
11.4 Diagnostic information in the Web browser .. 57
11.5 Diagnostic list ........................ 58
11.6 Diagnostic list ........................ 60
11.7 Event logbook ........................ 63
11.8 Resetting the device .................... 64
11.9 Firmware history ...................... 65
12 Maintenance ...................... 67
12.1 Maintenance work ..................... 67
13 Repair ............................ 68
13.1 General information ................... 68
13.2 Spare parts .......................... 68
13.3 Return .............................. 69
13.4 Disposal ............................ 69
14 Accessories ....................... 70
14.1 Device-specific accessories ............... 70
14.2 Device Viewer ........................ 70
15 Technical data .................... 71
15.1 Output ............................. 71
15.2 Environment ......................... 73
15.3 Process ............................. 76

Table of contents Cerabar PMP51B PROFINET with Ethernet-APL
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Index .................................. 83

Cerabar PMP51B PROFINET with Ethernet-APL About this document
Endress+Hauser 5
1 About this document
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
1.2.1 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.
1.2.2 Electrical symbols
Ground connection:
Terminal for connection to the grounding system.
1.2.3 Symbols for certain types of information
Permitted:
Procedures, processes or actions that are permitted.
Forbidden:
Procedures, processes or actions that are forbidden.

About this document Cerabar PMP51B PROFINET with Ethernet-APL
6 Endress+Hauser
Additional information:
Reference to documentation:
Reference to page:
Series of steps:
1.
,
2.
,
3.
Result of an individual step:
1.2.4 Symbols in graphics
Item numbers: 1, 2, 3 ...
Series of steps:
1.
,
2.
,
3.
Views: A, B, C, ...
1.2.5 Symbols on the device
Safety instructions:
Observe the safety instructions contained in the associated Operating Instructions.

Cerabar PMP51B PROFINET with Ethernet-APL About this document
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1.3 List of abbreviations
URL OPLMWP
LRL
0
p
LRV URV
1
2
3
4
A0029505
1 OPL: The OPL (overpressure limit = measuring cell overload limit) for the device 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. Pay attention to the pressure/temperature dependency.
2 The MWP (maximum working pressure) for the measuring cells 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. Pay attention to the pressure/temperature dependency. The MWP may be
applied at the device for an unlimited period of time. The MWP can be found on the nameplate.
3 The maximum measuring range corresponds to the span between the LRL and URL. This measuring range is
equivalent to the maximum calibratable/adjustable span.
4 The calibrated/adjusted span corresponds to the span between the LRV and URV. Factory setting: 0 to URL.
Other calibrated spans can be ordered as customized spans.
p Pressure
LRL Lower range limit
URL Upper range limit
LRV Lower range value
URV Upper range value
TD Turn down. Example - see the following section.
1.4 Documentation
All available documents can be downloaded using:
• the serial number of the device (see cover page for description) or
• the data matrix code of the device (see cover page for description) or
• the "Downloads" area of the website www.endress.com
1.4.1 Supplementary device-dependent documentation
Additional documents are supplied depending on the device version ordered: Always
comply strictly with the instructions in the supplementary documentation. The
supplementary documentation is an integral part of the device documentation.
1.5 Registered trademarks
PROFINET®
Registered trademark of the PROFIBUS User Organization, Karlsruhe, Germany

Basic safety instructions Cerabar PMP51B PROFINET with Ethernet-APL
8 Endress+Hauser
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 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)
‣Follow instructions and comply with 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 Intended use
The Cerabar is a pressure transmitter for measuring level and pressure.
2.2.1 Incorrect use
The manufacturer is not liable for damage caused by improper or non-intended 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 fluid-wetted materials, but does not accept any
warranty or liability.
2.3 Workplace safety
When working 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 only if it is in proper technical condition, free from errors and faults.
‣The operator is responsible for the interference-free operation of the device.
Modifications 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.
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 original spare parts and accessories from Endress+Hauser only.

Cerabar PMP51B PROFINET with Ethernet-APL Basic safety instructions
Endress+Hauser 9
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. explosion protection, pressure equipment safety):
‣Check the nameplate to verify if the device ordered can be put to its intended use in the
approval-related area.
‣Observe the specifications in the separate supplementary documentation that is an
integral part of these Instructions.
2.5 Product safety
This 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 EC
directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser
confirms this by affixing the CE mark to the device.
2.6 IT security
Endress+Hauser can only provide a warranty if the device is installed and used as
described in the Operating Instructions. The device is equipped with security mechanisms
to protect it against any inadvertent changes to the device settings. IT security measures in
line with operators' security standards and designed to provide additional protection for
the device and device data transfer must be implemented by the operators themselves.
2.7 Device-specific IT security
The device offers specific functions to support protective measures by the operator. These
functions can be configured by the user and guarantee greater in-operation safety if used
correctly. An overview of the most important functions is provided in the following section:
• Write protection via hardware write protection switch
• Access code to change the user role (applies for operation via Bluetooth, FieldCare,
DeviceCare, Asset Management Tools (e.g. AMS, PDM and web server)
Function/interface Factory setting Recommendation
Access code
(also applies for web server login or
FieldCare connection)
Not enabled
(0000)
Assign a customized access code during
commissioning.
Web server Enabled On an individual basis following risk assessment.
Service interface (CDI) Enabled On an individual basis following risk assessment.
Write protection via hardware write
protection switch
Not enabled On an individual basis following risk assessment.
2.7.1 Protecting access via a password
Different passwords are available to protect write access to the parameters of the device.
Protect write access to the parameters of the device via the local display, web browser or
operating tool (e.g. FieldCare, DeviceCare). Access authorization is clearly regulated
through the use of a user-specific access code.

Basic safety instructions Cerabar PMP51B PROFINET with Ethernet-APL
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User-specific access code
Write access to the parameters of the device via the local display, web browser or
operating tool (e.g. FieldCare, DeviceCare) can be protected using the editable, user-
specific access code.
When the device is delivered, the device does not have an access code and is equivalent to
0000 (open).
General notes on the use of passwords
• During commissioning, change the access code that was used when the device was
delivered from the factory
• When defining and managing the access code, comply with the general rules for the
generation of a secure password
• The user is responsible for managing the access code and for using the code with due
care
• If the password is lost, see the "Resetting the device" section
2.7.2 Access via web server
Due to the integrated web server, the device can be operated and configured via a web
browser and PROFINET with Ethernet-APL. In addition to the measured values, device
status information is also displayed, allowing users to monitor the status of the device.
Furthermore the device data can be managed and the network parameters can be
configured.
Access to the network is required for the PROFINET with Ethernet-APL connection.
Supported functions
Data exchange between the operating unit (such as a notebook for example) and the
measuring device:
• Export parameter settings (PDF file, create documentation of the measuring point
configuration)
• Export the Heartbeat Technology verification report (PDF file, only available with the
"Heartbeat Verification" application package)
• Download driver (GSDML) for system integration
The web server is enabled when the device is delivered. The web server can be disabled via
the Web server functionality parameter if necessary (e.g. after commissioning).
The device and status information can be hidden on the login page. This prevents
unauthorized access to the information.
Detailed information on the device parameters:
"Description of device parameters" document

Cerabar PMP51B PROFINET with Ethernet-APL Product description
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3 Product description
3.1 Product design
3.1.1 Metallic membrane
Standard device (without diaphragm seal)
1
2
3
p
A0043089
1 Measuring element
2 Channel with fill fluid
3 Metallic membrane
p Pressure
The pressure deflects the metallic membrane of the measuring cell. 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.
Advantages:
• Can be used for high pressures
• High long-term stability
• High overload resistance
• Secondary containment for enhanced integrity
• Significantly reduced thermal effect e.g. compared to diaphragm seal systems with
capillaries

Product description Cerabar PMP51B PROFINET with Ethernet-APL
12 Endress+Hauser
Device with diaphragm seal
p
1
2
3
4
A0043583
1 Measuring element
2 Internal membrane
3 Channel with fill fluid
4 Metallic membrane
p Pressure
The pressure acts on the membrane of the diaphragm seal and is transferred to the
internal membrane by a fill fluid. The internal membrane is deflected. A fill fluid transfers
the pressure to the measuring element on which a resistance bridge is located. The
pressure-dependent change in the bridge output voltage is measured and evaluated.
Advantages:
• Depending on the version, can be used for pressures up to 400 bar (6 000 psi) and for
extreme process temperatures
• High long-term stability
• High overload resistance
• Standard device (without diaphragm seal): secondary containment for enhanced
integrity
Applications for diaphragm seals
Diaphragm seal systems are used if the process and the device need to be separated.
Diaphragm seal systems offer clear advantages in the following instances:
• In the case of extreme process temperatures - through the use of temperature isolators
or capillaries
• In the case of strong vibrations - decouple the process from the device by using a
capillary
• In the case of aggressive or corrosive media - through the use of high-durability
membrane materials
• In the case of media that crystallize or contain solids - through the choice of suitable
coatings
• In the case of heterogeneous and fibrous process media
• If extreme measuring point cleaning is necessary, or in the event of very damp mounting
locations
• For mounting locations that are difficult to access

Cerabar PMP51B PROFINET with Ethernet-APL Product description
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3.1.2 Level measurement (level, volume and mass)
Standard device (without diaphragm seal)
h = p
ρ g
h
A0038343
h Height (level)
p Pressure
ρ Density of the medium
g Gravitational acceleration
Device with diaphragm seal
h = p
ρ g
h
A0038342
 1 Sample illustration: diaphragm seal with capillary
h Height (level)
p Pressure
ρ Density of the medium
g Gravitational acceleration
Advantages:
• Volume and mass measurements in any vessel shape with a freely programmable
characteristic curve
• Has a wide range of uses, e.g.
• For foam formation
• In vessels with agitators or screen fittings
• For liquid gases

Incoming acceptance and product identification Cerabar PMP51B PROFINET with Ethernet-APL
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4 Incoming acceptance and product
identification
4.1 Incoming acceptance
DELIVERY NOTE
1 = 2
A0016870
• Is the order code on the delivery note (1) identical to the order code on the product
sticker (2)?
• Are the goods undamaged?
• Do the data on the nameplate correspond to the order specifications and the delivery
note?
• Is the documentation available?
• If required (see nameplate): are the Safety Instructions (XA) provided?
If you can answer "no" to any of these questions, please contact Endress+Hauser.
4.1.1 Scope of delivery
The scope of delivery comprises:
• Device
• Optional accessories
Accompanying documentation:
• Brief Operating Instructions
• Final inspection report
• Additional Safety Instructions for devices with approvals (e.g. ATEX, IECEx, NEPSI, etc.)
• Optional: factory calibration form, test certificates
The Operating Instructions are available on the Internet at:
www.endress.com → Download
4.2 Product identification
The following options are available for identification of the device:
• Nameplate specifications
• Order code with breakdown of the device features on the delivery note
• Enter the serial numbers from the nameplates in Device Viewer
(www.endress.com/deviceviewer): all the information about the device is displayed.
4.2.1 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Place of manufacture: See nameplate.

Cerabar PMP51B PROFINET with Ethernet-APL Incoming acceptance and product identification
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4.2.2 Nameplate
Different nameplates are used depending on the device version.
The nameplates contain the following information:
• Manufacturer name and device name
• Address of the certificate holder and country of manufacture
• Order code and serial number
• Technical data
• Approval-specific information
Compare the data on the nameplate with your order.
4.3 Storage and transport
4.3.1 Storage conditions
• Use the original packaging
• Store the device in clean and dry conditions and protect from damage caused by shocks
Storage temperature range
See Technical Information.
4.3.2 Transporting the product to the measuring point
LWARNING
Incorrect transport!
Housing and membrane may become damaged, and there is a risk of injury!
‣Transport the device to the measuring point in the original packaging.
LWARNING
Incorrect transport!
Capillaries may become damaged, and there is a risk of injury!
‣Do not use capillaries as a carrying aid for the diaphragm seals.

Mounting Cerabar PMP51B PROFINET with Ethernet-APL
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5 Mounting
5.1 Mounting requirements
5.1.1 General instructions
• Do not clean or touch the membrane with hard and/or pointed objects.
• Do not remove the protection on the membrane until just before installation.
Always firmly tighten the housing cover and the cable entries.
1. Counter-tighten the cable entries.
2. Tighten the coupling nut.
5.1.2 Installation instructions
• The standard devices (without diaphragm seals) are mounted according to the same
guidelines as pressure gauges (DIN EN837-2)
• To ensure optimal readability of the local display, adjust the housing and local display
• Endress+Hauser offers a mounting bracket to mount the device on pipes or walls
• Use flushing rings for flanges, flange seals and pancake seals if buildup or clogging can
be expected at the membrane
• The flushing ring is clamped between the process connection and the flange, flange
seal or pancake seal
• Material buildup in front of the membrane is flushed away, and the pressure chamber
is vented, via the two lateral flushing holes
• When measuring in media containing solids (e.g. dirty liquids), installing separators and
drain valves is useful for capturing and removing sediment
• Using a valve manifold allows for easy commissioning, installation and maintenance
without interrupting the process
• When mounting the device, establishing the electrical connection and during operation:
prevent the penetration of moisture into the housing
• Point the cable and plug downwards as much as possible to prevent moisture from
entering (e.g. rainwater or condensation)
5.1.3 Installation instructions for thread
• Device with G 1 ½" thread:
Place the flat seal on the sealing surface of the process connection
Avoid additional strain on the membrane: do not seal the thread with hemp or similar
materials
• Device with NPT thread:
• Wrap Teflon tape around the thread to seal it
• Tighten the device at the hexagon bolt only; do not turn it by the housing
• When screwing in, do not overtighten the thread; tighten the NPT thread to the
required depth according to the standard
• For the following process connections, a tightening torque of max. 40 Nm (29.50 lbf ft)
is specified:
• Thread ISO228 G ½" with flush membrane
• Thread DIN13 M20 x 1.5 with flush membrane
• NPT 3/4" with flush membrane

Cerabar PMP51B PROFINET with Ethernet-APL Mounting
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5.1.4 Installation instructions for devices with diaphragm seals
NOTICE
Improper handling!
Damage to the device!
‣The diaphragm seal and pressure transmitter form a closed, calibrated system which
has been filled with diaphragm seal fill fluid. Never open any of the holes for fill fluid.
‣Ensure strain relief to prevent the capillary from bending (bending radius ≥
100 mm (3.94 in)).
‣Do not use capillaries as a carrying aid for the diaphragm seals.
‣Observe the application limits of the fill fluid.
General information
In the case of devices with diaphragm seals and capillaries, the zero point shift caused by
the hydrostatic pressure of the filling liquid column in the capillaries must be taken into
account when selecting the measuring cell. If a measuring cell with a small measuring
range is selected, a position adjustment can cause the measuring cell to go over range
(position adjustment due to zero point offset, caused by the orientation of the fill fluid
liquid column). Perform zero adjustment if necessary.
For devices with a capillary, use a suitable bracket (mounting bracket) for mounting.
When mounting, sufficient strain relief must be provided for the capillary to prevent the
capillary from bending (capillary bending radius ≥ 100 mm (3.94 in)).
Mount the capillary so that it is vibration-free (in order to avoid additional pressure
fluctuations).
Do not mount capillaries in the vicinity of heating or cooling lines and protect them
against direct sunlight.
More detailed installation instructions are provided in the Applicator
"Sizing Diaphragm Seal".
5.1.5 Orientation
NOTICE
Damage to the device!
If a heated device is cooled during a cleaning process (e.g. by cold water), a vacuum
develops for a short time. As a result of this, moisture can enter the measuring cell via the
pressure compensation element (1).
‣Mount the device as follows.
1
1
11
A0038723

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• Keep the pressure compensation element (1) free from contamination
• A position-dependent zero point shift (when the vessel is empty the measured value
does not display zero) can be corrected
• Diaphragm seals also shift the zero point, depending on the installation position
• The use of shutoff devices and/or water pocket pipes is recommended for mounting
• The orientation depends on the measuring application
5.2 Mounting the device
5.2.1 Pressure measurement in gases
1
2
A0038730
1 Device
2 Shutoff device
Mount the device with the shutoff device above the tapping point so that any condensate
can flow into the process.
5.2.2 Pressure measurement in steam
1
2
3
4
1
2
A0038731
1 Device
2 Shutoff device
3 U-shaped siphon
4 O-shaped siphon
Observe the maximum permitted ambient temperature of the transmitter!
Mounting:
• Ideally, mount the device with the O-shaped siphon below the tapping point
The device may also be mounted above the tapping point
• Fill the siphon with liquid before commissioning

Cerabar PMP51B PROFINET with Ethernet-APL Mounting
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Advantages of using siphons:
• Protects the measuring device from hot, pressurized media due to the formation and
collection of condensate
• Attenuation of water hammer
• The defined water column only causes minimal (negligible) measured errors and
minimal (negligible) thermal effects on the device
For technical data (e.g. materials, dimensions or order numbers), see the accessory
document SD01553P.
5.2.3 Pressure measurement in liquids
1
2
A0038732
1 Device
2 Shutoff device
Mount the device with the shutoff device below or at the same level as the tapping point.
5.2.4 Level measurement
A0038733
• Always mount 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
• At a point in the tank which could be affected by pressure pulses from the agitator
• Mount the device downstream from a shutoff device: the calibration and function check
can be carried out more easily
5.2.5 Thermal insulation with diaphragm seal directly mounted
The device may only be insulated up to a certain height. The maximum permitted
insulation height is indicated on the device and applies to an insulation material with a
heat conductivity ≤ 0.04 W/(m x K) and to the maximum permitted ambient and process

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temperature. The data were determined under the most critical application "quiescent air".
Maximum permitted insulation height, indicated here on a device with a flange:
A
B
1 2
A0020474
A Ambient temperature
B Process temperature
1 Maximum permitted insulation height
2 Insulation material
5.2.6 Mounting with a "Compact" diaphragm seal type
Tp
Ta
−100−148
−50−58
032
50122
100212
150302
200392
[°C]
[°F]
[°C][°F]
−60
−76
−40
−40
−20
−4
0
32
20
68
40
104
60
140
80
176
100
212
TT
pp
T T
a a
A0040383
TaAmbient temperature at transmitter
TpMaximum process temperature
TaTp
+85 °C (+185 °F) –70 to +120 °C (–94 to +248 °F)
+60 °C (+140 °F) –70 to +160 °C (–94 to +320 °F)
–20 °C (–4 °F) –70 to +160 °C (–94 to +320 °F)
–50 °C (–58 °F) 0 to +160 °C (+32 to +320 °F)