Rosemount™ 2130 Level Switch
Vibrating Fork
Safety Manual
00809-0500-4130, Rev AK
March 2022
Safety messages
NOTICE
Read this manual before working with the product. For personal and system safety, and for optimum product performance,
ensure you thoroughly understand the contents before installing, using, or maintaining this product.
For technical assistance, contacts are listed below:
Customer Central
Technical support, quoting, and order-related questions.
• United States - 1-800-999-9307 (7:00 am to 7:00 pm CST)
• Asia Pacific- 65 777 8211
North American Response Center
Equipment service needs.
• 1-800-654-7768 (24 hours a day — includes Canada)
• Outside of these areas, contact your local Emerson representative.
WARNING
Failure to follow safe installation and servicing guidelines could result in death or serious injury.
Ensure the level switch is installed by qualified personnel and in accordance with applicable code of practice.
Use the level switch only as specified in this manual. Failure to do so may impair the protection provided by the level switch.
The weight of a level switch with a heavy flange and extended fork length may exceed 37 lb. (18 kg). A risk assessment is required
before carrying, lifting, and installing the level switch.
WARNING
Explosions could result in death or serious injury.
Verify the operating atmosphere of the level switch is consistent with the appropriate hazardous locations certifications.
Before connecting a handheld communicator in an explosive atmosphere, ensure the instruments are installed in accordance with
intrinsically safe or non-incendive field wiring practices.
In explosion-proof/flameproof and non-incendive installations, do not remove the housing cover when power is applied to the
level switch.
The housing cover must be fully engaged to meet flameproof/explosion-proof requirements.
WARNING
Electrical shock could cause death or serious injury.
Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.
Ensure the power to the level switch is off, and the lines to any other external power source are disconnected or not powered while
wiring the level switch.
Ensure the wiring is suitable for the electrical current and the insulation is suitable for the voltage, temperature, and environment.
WARNING
Process leaks could result in death or serious injury.
Ensure the level switch is handled carefully. If the process seal is damaged, gas might escape from the vessel (tank) or pipe.
2
WARNING
Physical access
Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end users’ equipment. This could
be intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and fundamental to protecting your system. Restrict physical access
by unauthorized personnel to protect end users’ assets. This is true for all systems used within the facility.
CAUTION
The products described in this document are NOT designed for nuclear-qualified applications.
Using non-nuclear qualified products in applications that require nuclear-qualified hardware or products may cause inaccurate
readings.
For information on Rosemount nuclear-qualified products, contact your local Emerson Sales Representative.
CAUTION
Hot surfaces
The flange and process seal may be hot at high process temperatures. Allow to cool before servicing.
3
4
Safety Manual Contents
00809-0500-4130 March 2022
Contents
Chapter 1 Before you begin........................................................................................................7
1.1 About this document...................................................................................................................7
1.2 About this product.......................................................................................................................7
1.3 Related documents......................................................................................................................8
Chapter 2 Installation and commissioning..................................................................................9
2.1 Safety Instrumented System (SIS) certification............................................................................ 9
2.2 Safety-certified identification.......................................................................................................9
2.3 Installation.................................................................................................................................10
2.4 Configuration............................................................................................................................ 11
Chapter 3 Proof tests................................................................................................................13
3.1 Overview................................................................................................................................... 13
3.2 Comprehensive proof testing.................................................................................................... 16
3.3 Partial proof-testing...................................................................................................................18
Chapter 4 Operating constraints.............................................................................................. 21
4.1 Specifications............................................................................................................................ 21
4.2 Product repair............................................................................................................................22
Appendix A Terms and definitions...............................................................................................23
Rosemount 2130 Level Switch 5
Contents Safety Manual
March 2022 00809-0500-4130
6 Emerson.com/Rosemount
Safety Manual Before you begin
00809-0500-4130 March 2022
1 Before you begin
1.1 About this document
This document provides information about how to install, commission, and proof test a
Rosemount 2130 Level Switch to comply with Safety Instrumented Systems (SIS)
requirements.
Note
The following conditions must apply:
• The level switch has been installed correctly and completely according to the
instructions in the Reference Manual and Quick Start Guide.
• The installation complies with all applicable safety requirements.
• The operator is trained in local and corporate safety standards.
1.2 About this product
The Rosemount 2130 Level Switch consists of a tuned fork with a driver and receiver
element, and integral interface electronics. The level detector is based on the principle
that the resonant frequency of a tuned fork changes when it is immersed in a liquid. The
frequency change is detected and used to switch an electrical output.
A range of output options are available to suit different applications.
Rosemount 2130 Level Switch 7
Before you begin Safety Manual
March 2022 00809-0500-4130
1.2.1 Application examples
The level switch indicates, by means of an electronic output, whether the level of a process
liquid is above, or below, a certain point (the switching point).
Figure 1-1: Example Application Overfill Protection
A. High and low alarm
B. Pump control
C. Overfill protection
1.3 Related documents
You can find all product documentation at Emerson.com/Rosemount.
For more information, see the following documents:
Table 1-1: Related Documentation
Document Document type
00809-0100-4130 Reference Manual
00813-0100-4130 Product Data Sheet
00825-0100-4130 Quick Start Guide
00825-0200-4130 Product Certifications
8 Emerson.com/Rosemount
Safety Manual Installation and commissioning
00809-0500-4130 March 2022
2 Installation and commissioning
2.1 Safety Instrumented System (SIS) certification
For safety instrumented systems usage, the electrical output is used as the primary safety
variable. It is configured to activate the alarm function if an error occurs. The Rosemount
2130 may be used in high level or low level safety related applications.
The measurement signal used by the logic solver must be the discrete levels set at the
instrument output used to indicate the sensor condition. A change in liquid level through
the switch point of the level switch results in the user configured state being set at the
output by the instrument.
For Model Codes P, L, N, M, and D- Dry or Wet, the Rosemount 2130 is IEC 61508 certified
to:
• Low demand: Type B element
• SIL 2 for random integrity @ HFT=0
• SIL 3 for random integrity @ HFT=1
• SIL 3 for systematic capability
2.2 Safety-certified identification
All Rosemount 2130 Level Switches must be identified as safety-certified before installing
into SIS systems. Table 2-1 lists the versions of the Rosemount 2130 Level Switches that
have been considered for the hardware assessment, to which this section applies.
• Models with the QT option code are IEC 61508 certified by an accredited 3rd party
agency for use in safety instrumented systems up to SIL 3. (For single use (1oo1)
capable up to SIL 2 and for redundant use (1oo2 or 2oo3) capable up to SIL 3.)
• Models with the QS option code are supplied with a manufacturer’s prior use certificate
of FMEDA data.
Rosemount 2130 Level Switch 9
Installation and commissioning Safety Manual
March 2022 00809-0500-4130
Table 2-1: Rosemount 2130 Series Safety-Certified Option Model Codes
Rosemount 2130 Level Switch
Hardware Model 2130 Z ZZ L Z ZZ Z ZZZZ QT. Dry=On, Wet=On
Model 2130 Z ZZ P Z ZZ Z ZZZZ QT. Dry=On, Wet=On
Model 2130 Z ZZ D Z ZZ Z ZZZZ QT. Dry=On, Wet=On
Model 2130 Z ZZ N Z ZZ Z ZZZZ QT. Dry=On, Wet=On
Model 2130 Z ZZ M Z ZZ Z ZZZZ QT. Dry=On, Wet=On
Note
Switches will be marked with “QS” or “QT” at the end of the
model number
Z - different options, see Product Data Sheet.
L - Direct load switching
P - PNP/PLC
D - Relay (DPCO)
N - NAMUR
M - 8/16 mA
Software/Firmware
D: 1.0.0 or higher
N: 2.10.0 or higher
P: 2.10.0 or higher
L: 2.10.0 or higher
M: 2.10.0 or higher
2.2.1 Identify a safety-certified transmitter
To identify a Rosemount 2130 Level Switch safety-certified transmitter:
Procedure
1. Verify the model code is suffixed with the QT or QS option code.
2. Verify a yellow tag is affixed to the outside of the level switch for option code QT.
2.3 Installation
The Rosemount 2130 Level Switch must be installed as described in the installation
section of the product Reference Manual.
Environmental conditions must not exceed the ratings in the specification section of the
Reference Manual. The level switch must be accessible for physical inspection.
10 Emerson.com/Rosemount
OOO
y
Ood
e
D
r
y
e
t
W
etO
n
M
ode
y
e
t
Dry On Wet On
Seconds Delay
0.3 0.3
3
30
10
1
3
30
10
1
C
OOO
y
Ood
e
D
r
y
e
t
W
etO
n
M
ode
y
e
t
Dry On Wet On
Seconds Delay
0.3 0.3
3
30
10
1
3
30
10
1
C
Safety Manual Installation and commissioning
00809-0500-4130 March 2022
2.4 Configuration
2.4.1 Self-check setting
The Rosemount 2130 Level Switch must be user-configured to operate in the Self-check
mode. This mode enables the internal diagnostic routines.
Self-check mode is indicated by the amber color of the LED on the electronics cassette.
SIS-certified 2130 Level Switches (dependent on model code) are shipped with this mode
pre-configured, but must be checked before first use, and periodically thereafter, as part
of the proof-test routine.
2.4.2 Output mode setting
The Rosemount 2130 Level Switch must be user-configured for an application so that the
output is ON in the Safe or Normal condition.
The response time (seconds delay) may be set to a convenient value to prevent trips that
are spurious i.e. not due to a real condition. Note that the Safety Response Time is the
greater of 10 seconds and the selected seconds delay using the switch setting.
Table 2-2: Output Mode Setting
Application Switch setting
High Level Alarm Dry=On
Low Level Alarm Wet=On
(Normal or Safe condition)
Rosemount 2130 Level Switch 11
Installation and commissioning Safety Manual
March 2022 00809-0500-4130
12 Emerson.com/Rosemount
Safety Manual Proof tests
00809-0500-4130 March 2022
3 Proof tests
3.1 Overview
The Rosemount 2130 must be tested at regular intervals to reveal faults which are
undetected by automatic diagnostics. It is the user's responsibility to choose the type of
testing and the frequency of these tests.
Results from periodic proof tests shall be recorded and periodically reviewed. If an error is
found in the safety functionality, the device shall be put out of operation and the process
shall be kept in a safe state by other measures.
Note
For a valid result, always perform the proof test on the product that will be stored in the
tank while the device is in operation.
3.1.1
Suggested proof tests
The following proof tests are suggested:
• (A) Comprehensive proof test
• (B) Partial proof test
Table 3-1 can be used as a guidance for selecting the appropriate proof test for Dry=On:
Table 3-1: Suggested Proof Tests - Dry=On
Proof test # Output Type and
Model Code Option
2-wire/
Direct-Load
8 and 16
A
mA
NAMUR N 93 2 FIT
PNP/PLC P 89 5 FIT
Relay D 97 3 FIT
2-wire/
Direct-Load
Proof test
coverage
(%) of DU
L
78 11 FIT
M
51 12 FIT
L
77 11 FIT
Remaining
dangerous,
undetected
failures
Test coverage Can be
Output
circuitry
Yes Yes Yes No
Measurement
electronics
Sensor
performed
remotely
8 and 16
B
Rosemount 2130 Level Switch 13
mA
NAMUR N 89 2 FIT
PNP/PLC P 85 7 FIT
Relay D 96 4 FIT
M
50 12 FIT
Yes Yes No No
Proof tests Safety Manual
March 2022 00809-0500-4130
Table 3-2 can be used as a guidance for selecting the appropriate proof test for Wet=On:
Table 3-2: Suggested Proof Tests - Wet=On
Proof test # Output Type and
Model Code Option
2-wire/
Direct-Load
8 and 16
A
B
mA
NAMUR N 95 2 FIT
PNP/PLC P 86 7 FIT
Relay D 98 3 FIT
2-wire/
Direct-Load
8 and 16
mA
NAMUR N 92 3 FIT
PNP/PLC P 81 10 FIT
Relay D 97 4 FIT
Related information
Proof test
coverage
(%) of DU
L
81 13 FIT
M
95 3 FIT
L
77 13 FIT
M
93 3 FIT
Remaining
dangerous,
undetected
failures
Test coverage Can be
Output
circuitry
Yes Yes Yes No
Yes Yes Yes No
Measurement
electronics
Sensor
performed
remotely
Comprehensive proof testing
Partial proof-testing
14 Emerson.com/Rosemount
Safety Manual Proof tests
00809-0500-4130 March 2022
3.1.2 Proof test interval
The time intervals for proof testing are defined by the SIL verification calculation (subject
to the PFD
appropriate proof test interval for the specific safety function based on equipment’s
reliability and required risk reduction for the specific SIF.
The proof tests must be performed more frequently than or as frequently as specified in
the SIL verification calculation, in order to maintain the required safety integrity of the
overall SIF.
). The SIL verification calculation is an analytical method to calculate an
AVG
3.1.3 Tools required
• Voltage or current meter, depending on output type
• Power supply
• Safety logic solver
Rosemount 2130 Level Switch 15
Proof tests
March 2022 00809-0500-4130
Safety Manual
3.2 Comprehensive proof testing
The comprehensive proof-test performs a complete test of the system elements. The
sensor, measuring electronics and output stage are all checked by virtue of changing of
the sensor condition and observation of the output.
According to the standard IEC 61508-2, proof-tests shall be undertaken to reveal
dangerous faults which are undetected by diagnostic tests. This means that it is necessary
to specify how dangerous undetected faults which have been noted during the Failure
Modes, Effects, and Diagnostic Analysis can be detected during proof-testing.
Related information
Suggested proof tests
3.2.1
3.2.2
Impact on SIF and process
In order to achieve the product safe state, the sensor must be either removed from or
immersed in the process medium, depending on the operating mode. The process cannot
be allowed to operate whilst the proof test is being performed.
Perform comprehensive proof test Low Level Alarm
Procedure
1. Inspect the accessible parts of the level detector for any leaks or damage.
2. Bypass the safety function and take appropriate action to avoid a false trip.
3. Verify the Mode Switch is set to the required mode of operation.
4. Disable any filling mechanism and drain the vessel to force the switch to the fail-safe
state and confirm that the Safe State was achieved and within the correct time as
indicated by the setting of the Mode Switch.
CAUTION
Independent precautions must be taken to ensure that no hazard can result from
this operation.
5. Reinstate the filling mechanism so that the vessel refills and confirm that the
normal operating state of the switch was achieved.
6. Remove the safety function bypass and otherwise restore normal operation.
3.2.3
16 Emerson.com/Rosemount
Perform comprehensive proof test High Level Alarm
Procedure
1. Inspect the accessible parts of the level detector for any leaks or damage.
2. Bypass the safety function and take appropriate action to avoid a false trip.
3. Verify the Mode Switch is set to the required mode of operation.
Safety Manual Proof tests
00809-0500-4130 March 2022
4. Disable any drain mechanism and fill the vessel to force the switch to the fail-safe
state and confirm that the Safe State was achieved and within the correct time as
indicated by the setting of the Mode Switch.
CAUTION
Independent precautions must be taken to ensure that no hazard can result from
this operation.
5. Reinstate the drain mechanism so that the vessel refills and confirm that the normal
operating state of the switch was achieved.
6. Remove the safety function bypass and otherwise restore normal operation.
3.2.4 Duration of comprehensive proof-test
The comprehensive proof-test takes several hours to perform with all safety measures
being followed.
Rosemount 2130 Level Switch 17
Proof tests
March 2022 00809-0500-4130
Safety Manual
3.3 Partial proof-testing
The level switch has the ability of performing a partial proof-test. This test has reduced
diagnostic coverage compared with the comprehensive proof-test, in that it is limited to
exercising the output and measurement electronics only.
The partial proof-test presents the following benefits:
• Provides a percentage of the comprehensive proof-test coverage, enabling the unit to
be tested and its effective PFD to be reduced by this percentage at the time of the test.
• Test can be performed “in-process” and takes less than one minute to complete.
• Provides capability to prolong comprehensive testing to align with standard plant
maintenance schedules.
• May give the user the flexibility to schedule the comprehensive proof-testing Interval
to fit with a site's scheduled plan.
The suggested partial proof-test for the Rosemount™ 2130 Level Switch exercises the
signal processing and output, but does not test the sensor.
3.3.1
3.3.2
Related information
Suggested proof tests
Impact on SIF and process
The process cannot be allowed to operate whilst the proof-test is being performed.
Perform partial proof test
Procedure
1. Inspect the accessible parts of the level detector for any leaks or damage.
2. Bypass the safety function and take appropriate action to avoid a false trip.
3. Verify the Mode Switch is set to the required mode of operation.
4. Apply a bar magnet to the Magnetic Test Point to force the switch to the fail-safe
state and confirm that the Safe State was achieved within two seconds.
CAUTION
Independent precautions must be taken to ensure that no hazard can result from
this operation.
5. Remove the bar magnet from the Magnetic Test Point and confirm that after 1s the
normal operating state of the switch was achieved.
6. Remove the safety function bypass and otherwise restore normal operation.
18 Emerson.com/Rosemount
Safety Manual Proof tests
00809-0500-4130 March 2022
3.3.3 Duration of partial proof-test
The partial proof-test takes less than an hour to perform with all safety measures being
followed.
Rosemount 2130 Level Switch 19
Proof tests Safety Manual
March 2022 00809-0500-4130
20 Emerson.com/Rosemount
Safety Manual Operating constraints
00809-0500-4130 March 2022
4 Operating constraints
4.1 Specifications
The Rosemount 2130 must be operated according to the functional and performance
specifications provided in the Rosemount 2130 Product Data Sheet.
4.1.1 Failure rate data
The FMEDA report includes failure rate data, assessment details, and assumptions
regarding failure rate analysis.
4.1.2
Transmitter response time
The safety response time for all output types is the greater of 10 seconds or the selected
seconds delay using the switch setting.
Table 4-1: Transmitter response time
Output Type and
Model Code Option
2-wire/
Direct-Load
8 and 16 mA M 11 to 36 Vdc < 3.7 mA
NAMUR N 7 to 9 Vdc 1.0 mA
PNP/PLC P 20 to 60Vdc < 100 μA
Relay D 20 to 60 Vdc
(1) Logic solver trip levels should be set higher than these values in order to ensure reliable trips.
(2) The transmitter response time is the greater of 10 seconds or the configured seconds delay using
the switch setting.
(3) Operating (switching) point measured from lowest point of fork when liquid is water.
(4) Operating (switching) point measured from lowest point of fork when liquid is not water.
Supply
voltage
L 20 to 264 Vac
20 to 60 Vdc
20 to 264 Vdc
Safety alarm
levels
(leakage
currents)
6 mA
N/A
(1)
Transmitter
response
(2)
time
10 s
minimum
Switch point
(water)
11 to 15 mm 0 to 30 mm
(3)
Switch point
(other
(4)
liquid)
4.1.3
Rosemount 2130 Level Switch 21
Diagnostic test interval
All diagnostic checks complete to entirety within one hour (< 60 min).
Operating constraints Safety Manual
March 2022 00809-0500-4130
4.1.4 Useful lifetime
Based on general field failure data and manufacturers component data, a useful lifetime of
approximately 10 years is expected for the Rosemount 2130 Level Switch at an ambient
temperature of 55 °C.
This decreases by a factor of two for every increase of 10 °C, and increases by a factor of
two for every decrease of 10 °C.
4.2 Product repair
Repair procedures in the Rosemount 2130 Level Switch Reference Manual must be
followed.
In case of malfunction of the system or SIF, the Rosemount 2130 Level Switch shall be put
out of operation and the process shall be kept in a safe state by other measures.
Emerson must be informed when the Rosemount 2130 is required to be replaced due to
failure. The occurred failure shall be documented and reported to Emerson using the
contact details on the back page of this functional safety manual. This is an important part
of the Emerson SIS management process.
The Rosemount 2130 is repairable by major component replacement. All failures detected
by the device diagnostics or by the proof test must be reported. Feedback can be
submitted electronically at Go.EmersonAutomation.com/Contact-Us (Contact Us).
22 Emerson.com/Rosemount
Safety Manual Terms and definitions
00809-0500-4130 March 2022
A Terms and definitions
λ
DU
λ
DD
λ
SU
λ
SD
Diagnostic test
interval
Element
FIT
FMEDA
HART® protocol
HFT
High demand
mode
Low demand
mode
Dangerous Undetected failure rate
Dangerous Detected failure rate
Safe Undetected failure rate
Safe Detected failure rate
The time from when a dangerous failure/condition occurs until the
device has set the safety related output in a safe state (total time
required for fault detection and fault reaction).
Term defined by IEC 61508 as “part of a subsystem comprising a
single component or any group of components that performs one or
more element safety functions”
Failure In Time per billion hours
Failure Modes, Effects and Diagnostic Analysis
Highway Addressable Remote Transducer
Hardware Fault Tolerance
The safety function is only performed on demand, in order to transfer
the EUC (Equipment Under Control) into a specified safe state, and
where the frequency of demands is greater than one per year (IEC
61508-4).
The safety function is only performed on demand, in order to transfer
the EUC into a specified safe state, and where the frequency of
demands is no greater than one per year (IEC 61508-4).
PFD
AVG
PFH
Proof test
coverage factor
Safety deviation
Rosemount 2130 Level Switch 23
Average Probability of Failure on Demand
Probability of dangerous Failure per Hour: the term "probability" is
misleading, as IEC 61508 defines a rate.
The effectiveness of a proof test is described using the coverage
factor which specifies the share of detected dangerous undetected
failures (λDU). The coverage factor is an indication of a proof test’s
effectiveness to detect dangerous undetected faults.
The maximum allowed deflection of the safety output due to a failure
within the device (expressed as a percentage of span).
Any failure causing the device output to change less than the Safety
Deviation is considered as a "No Effect" failure. All failures causing the
device output to change more than the Safety Deviation and with the
device output still within the active range (non-alarm state) are
considered dangerous failures.
Terms and definitions Safety Manual
March 2022 00809-0500-4130
Note
The Safety Deviation is independent of the normal performance
specification or any additional application specific measurement
error.
SIF
SIL
SIS
Systematic
capability
Transmitter
response time
Type B device
Useful lifetime
Safety Instrumented Function
Safety Integrity Level – a discrete level (one out of four) for specifying
the safety integrity requirements of the safety instrumented
functions to be allocated to the safety instrumented systems. SIL 4
has the highest level of safety integrity, and SIL 1 has the lowest level.
Safety Instrumented System – an instrumented system used to
implement one or more safety instrumented functions. An SIS is
composed of any combination of sensors, logic solvers, and final
elements.
A measure (expressed on a scale of SC 1 to SC 4) of the confidence
that the systematic safety integrity of an element meets the
requirements of the specified SIL, in respect of the specified element
safety function, when the element is applied in accordance with the
instructions specified in the compliant item safety manual for the
element.
The time from a step change in the process until transmitter output
reaches 90% of its final steady state value (step response time as per
IEC 61298-2).
Complex device using controllers or programmable logic, as defined
by the standard IEC 61508.
Reliability engineering term that describes the operational time
interval where the failure rate of a device is relatively constant. It is
not a term which covers product obsolescence, warranty, or other
commercial issues.
The useful lifetime is highly dependent on the element itself and its
operating conditions (IEC 61508-2).
24 Emerson.com/Rosemount
Safety Manual
00809-0500-4130 March 2022
Rosemount 2130 Level Switch 25
00809-0500-4130
Rev. AK
2022
For more information:
©
2022 Emerson. All rights reserved.
Emerson.com
Emerson Terms and Conditions of Sale are available upon
request. The Emerson logo is a trademark and service mark of
Emerson Electric Co. Rosemount is a mark of one of the
Emerson family of companies. All other marks are the property
of their respective owners.
Loading...