Emerson Rosemount 2088 User manual

Quick Start Guide
00825-0100-4690, Rev GD
February 2019
Rosemount™ 2088, 2090P, and 2090F
Pressure Transmitters
with 4–20 mA HART® and 1–5 Vdc HART
Low Power Protocol

Contents
Mount the transmitter................................... 3
Set the jumpers..............................................7
Connect the wiring and power....................... 9
Verify configuration..................................... 12
Trim the transmitter.................................... 14
Safety instrumented systems.......................16
Product Certifications.................................. 19
Rosemount 2088 and 2090 Declaration of
Conformity.................................................. 40
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2 Rosemount 2088, 2090P, and 2090F Pressure Transmitters

1 Mount the transmitter
1.1 Rosemount™ 2088
Mount directly to the impulse line without using an additional mounting
bracket or mount directly to a wall, panel, or two-inch pipe using an optional
mounting bracket.
1.2 Rosemount™ 2090P
Mount directly to the process pipe using an existing weld spud, or have a
skilled welder install a new weld spud using a TIG welder. Refer to Reference
Manual for complete welding instructions. Improper installation may result in
weld spud distortion. Recommended mounting in upright or horizontal
position to allow proper draining of vent.
1.3 Rosemount™ 2090F
Mount directly to the process pipe using a standard sanitary fitting (either a
1.5- or 2-in. Tri Clamp connection). Recommended mounting in upright or
horizontal position to allow proper draining of vent.
Figure 1-1: Transmitter Direct Mounting
Do not apply torque directly to the electronics housing. To avoid damage,
apply torque only to the hex-shaped process connection.
Rosemount
2088
Rosemount 2090P Rosemount
2090F
A. ½–14 NPT female process connection
B. Vessel wall
C. Weld spud
D. O-ring
E. 1½- or 2-in. Tri Clamp connection
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Figure 1-2: Panel and Pipe Mounting
Panel mount Pipe mount
1.4 Liquid flow applications
Transmitter mounting procedure for liquid flow applications.
Procedure
1. Place taps to the side of the line.
2. Mount beside or below the taps.
Example
1.5 Gas flow applications
Transmitter mounting procedure for gas flow applications.
Procedure
1. Place taps in the top or side of the line.
2. Mount level or above the taps.
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Example
1.6 Steam flow applications
Transmitter mounting procedure for steam flow applications.
Procedure
1. Place taps to the side of the line.
2. Mount beside or below the taps.
3. Fill impulse lines with water.
Example
1.7 Environmental seal for housing
Thread sealing (PTFE) tape or paste on male threads of conduit is required to
provide a water/dust tight conduit seal and meets requirements of NEMA®
Type 4X, IP66, and IP68. Consult factory if other Ingress Protection ratings are
required. For M20 threads, install conduit plugs to full thread engagement or
until mechanical resistance is met.
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1.8 Gage transmitter orientation
The low side pressure port (atmospheric reference) on the gage transmitters
with aluminum housings are located in the neck of the transmitter, behind the
housing. The vent path is 360° around the transmitter between the housing
and sensor. (See Figure 1-3.)
Keep the vent path free of any obstruction, including but not limited to paint,
dust, and lubrication by mounting the transmitter so that the process can
drain away.
Figure 1-3: Gage Low Side Pressure Port
A
A. Low side pressure port (atmospheric reference)
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2 Set the jumpers
If alarm and security jumpers are not installed, the transmitter will operate
normally with the default alarm condition alarm high and the security off.
Procedure
1. If the transmitter is installed, secure the loop, and remove power.
2. Remove the housing cover opposite the field terminal side. Do not
remove the instrument cover in explosive atmospheres when the
circuit is live.
3. Ensure full contact with terminal block screw and washer. When using
a direct wiring method, wrap wire clockwise to ensure it is in place
when tightening the terminal block screw.
Note
The use of a pin or a ferrule wire terminal is not recommended as the
connection may be more susceptible to loosening over time or under
vibration.
4. Reposition the jumper. Avoid contact with the leads and the terminals.
See Figure 2-1 for the location of the jumper and the ON and OFF
positions.
5. Reattach the transmitter cover. The cover must be fully engaged to
comply with explosion-proof requirements.
Example
Figure 2-1: Rosemount 2088 Transmitter Electronics Board
Without LCD display With LCD display
Low power without LCD display Low power with LCD display
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A. Alarm
B. Security
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3 Connect the wiring and power
Use the following steps to wire the transmitter:
Procedure
1. Remove the housing cover on the side marked field terminals.
2. Connect the positive lead to the “PWR/COMM+” terminal, and the
negative lead to the “–” terminal.
3. Ensure proper grounding. It is important that the instrument cable
shield:
•Be trimmed close and insulated from touching the transmitter
housing
•Be connected to the next shield if cable is routed through a
junction box
•Be connected to a good earth ground at the power supply end
Note
Installation of the transient protection terminal block does not provide
transient protection unless the Rosemount 2088 case is properly
grounded.
Note
Do not connect the powered signal wiring to the test terminals. Power
could damage the test diode in the test connection. Twisted pair cable
yields best results. For high EMI/RFI environments, shielded twisted
pair cable should be used. Use 24 AWG or larger wire and do not
exceed 5,000 ft. (1,500 m).
4. Plug and seal unused conduit connections.
5. If applicable, install wiring with a drip loop. Arrange the drip loop
so the bottom is lower than the conduit connections and the
transmitter housing.
6. Replace the housing cover.
Figure 3-1 and Figure 3-2 show wiring connections necessary to power
a Rosemount 2088 Transmitter and enable communications with a
hand-held Field Communicator:
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Example
Figure 3-1: Bench Hook-up Wiring Diagrams (4–20 mA Transmitters)
A. RL ≥ 250Ω
B. 24 Vdc supply
C. Current meter
Figure 3-2: Field Wiring for Rosemount 2088 — Low Power Option Code N
A. Voltmeter
B. Power supply
3.1 Power supply
The dc power supply (Option S: 10.5–42.4 V and Option N: 6–14 V) should
provide power with less than two percent ripple. The total resistance load is
the sum of the resistance of the signal leads and the load resistance of the
controller, indicator, and related pieces. The resistance of intrinsic safety
barriers, if used, must be included.
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Figure 3-3: Maximum Loop Resistance = 43.5 × (Power Supply Voltage –
10.5)
The Field Communicator requires a minimum loop resistance of 250Ω for
communication.
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4 Verify configuration
A check (✓) indicates the basic configuration parameters. At minimum, these
parameters should be verified as part of the configuration and startup
procedure.
Function HART Fast Key sequence
Analog Output Alarm 1, 4, 3, 2, 4
Burst Mode Control 1, 4, 3, 3, 3
Burst Option 1, 4, 3, 3, 4
Calibration 1, 2, 3
✓Damping 1, 3, 5
Date 1, 3, 4, 1
Descriptor 1, 3, 4, 2
Digital To Analog Trim (4–20 mA Output) 1, 2, 3, 2, 1
Disable Local Span/Zero Adjustment 1, 4, 4, 1, 7
Field Device Info 1, 4, 4, 1
Keypad Input 1, 2, 3, 1, 1
Loop Test 1, 2, 2
Lower Range Value 4, 1
Lower Sensor Trim 1, 2, 3, 3, 2
Message 1, 3, 4, 3
Meter Type 1, 3, 6, 1
Number of Requested Preambles 1, 4, 3, 3, 2
Output Trim 1, 2, 3, 2
Percent Range 1, 1, 2
Poll Address 1, 4, 3, 3, 1
✓Range Values 1, 3, 3
Rerange 1, 2, 3, 1
Scaled D/A Trim (4–20 mA Output) 1, 2, 3, 2, 2
Self Test (Transmitter) 1, 2, 1, 1
Sensor Info 1, 4, 4, 2
Sensor Trim (Full Trim) 1, 2, 3, 3
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Function HART Fast Key sequence
Sensor Trim Points 1, 2, 3, 3, 5
Status 1, 2, 1, 2
✓Tag 1, 3, 1
Transmitter Security (Write Protect) 1, 3, 4, 4
✓Units (Process Variable) 1, 3, 2
Upper Range Value 5, 2
Upper Sensor Trim 1, 2, 3, 3, 3
Zero Trim 1, 2, 3, 3, 1
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5 Trim the transmitter
Note
Transmitters are shipped fully calibrated per request or by the factory default
of full scale (span = upper range limit).
5.1 Zero trim
A zero trim is a single-point adjustment used for compensating mounting
position effects. If zero offset is less than 3 percent of true zero, follow the
Using the Field Communicator instructions below. If zero offset is greater than
3 percent of true zero, follow the Using the transmitter zero adjustment
button instructions below to rerange.
5.1.1 Using the Field Communicator
Fast Keys 1, 2, 3, 3, 1
Procedure
1. Vent the transmitter and connect Field Communicator.
2. At the menu, input the HART Fast Key sequence.
3. Follow the commands to perform a zero trim.
5.1.2 Using the transmitter zero adjustment button
Procedure
1. Loosen the certifications label screw and rotate the label to expose the
zero adjustment button.
2. Apply the desired pressure for the 4 mA output.
3. Set the 4 mA point by pressing the zero button for two seconds. Verify
that the output is 4 mA. The optional LCD display will show “ZERO
PASS”.
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Example
A. Zero adjustment button
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6 Safety instrumented systems
The following section applies to Rosemount 2088 Transmitters used in SIS
applications.
Note
Transmitter output is not safety-rated during the following: configuration
changes, multidrop, loop test. Alternative means should be used to ensure
process safety during transmitter configuration and maintenance activities.
6.1 Installation
No special installation is required in addition to the standard installation
practices outlined in this document. Always ensure a proper seal by installing
the electronics housing cover(s) so that metal contacts metal.
The loop must be designed so the terminal voltage does not drop below 10.5
Vdc when the transmitter output is 22.5 mA.
Position the security switch to the “ON” position to prevent accidental or
deliberate change of configuration data during normal operation.
6.2 Configuration
Use any HART-compliant master to communicate with and verify
configuration of the Rosemount 2088.
User-selected damping will affect the transmitters ability to respond to
changes in the applied process. The damping value + response time must not
exceed the loop requirements.
Note
DCS or safety logic solver must be configured to match transmitter
configuration. Figure 6-1 identifies the two alarm levels available and their
operation values. Position the alarm switch to the required HI or LO alarm
position.
Figure 6-1: Alarm Levels
Rosemount alarm level
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Namur alarm level
A. Transmitter Failure, hardware alarm in LO position.
B. Transmitter Failure, hardware alarm in HI position.
Note
Some detected faults are indicated on the analog output at a level above high
alarm regardless of the alarm switch selection.
6.3 Operation and maintenance
6.3.1 Proof test and inspection
The following proof tests are recommended. Proof test results and corrective
actions taken must be documented at Emerson.com/Rosemount/Safety in
the event that an error is found in the safety functionality.
Use Table 7-1 to perform a Loop Test, Analog Output Trim, or Sensor Trim.
See the Rosemount 2088 Reference Manual for additional information.
6.3.2 Proof test
This proof test will detect 92 percent of DU failures not detected by the
Rosemount 2088 automatic diagnostics.
Procedure
1. Bypass the safety PLC and take appropriate action to avoid a false trip.
2. Send a HART command to the transmitter to go to the high alarm
current output and verify that the analog current reaches that value.(1)
3. Send a HART command to the transmitter to go to the low alarm
current output and verify that the analog current reaches that value.(2)
4. Perform a minimum two-point sensor calibration check using the 4-20
mA range points as the calibration points and verify that the mA
output corresponds to the pressure input value.(3)
5. Restore loop to full operation.
(1) This tests for compliance voltage problems such as a low loop power supply voltage
or increased wiring resistance. This also tests for other possible failures.
(2) This tests for possible quiescent current related failures.
(3) If the two-point calibration is performed with electrical instrumentation, this proof
test will not detect any failures of the sensor.
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6. Remove the bypass and otherwise restore normal operation.
6.3.3 Product repair
All failures detected by the transmitter diagnostics or by the proof-test must
be reported. Feedback can be submitted electronically at Emerson.com/
Rosemount/Safety.
The Rosemount 2088 is repairable by major component replacement. Follow
the instructions in the Rosemount 2088 Reference Manual for additional
information.
6.4 Reference
6.4.1 Specifications
The Rosemount 2088 must be operated in accordance to the functional and
performance specifications provided in the Rosemount 2088 Reference
Manual.
6.4.2 Failure rate data
The FMEDA report includes failure rates. This report is available at
Emerson.com/Rosemount.
6.4.3 2088 safety failure values
Safety accuracy: 2.0% Safety response time: 1.5 sec
Note
A 2% variation of the transmitter mA output is allowed before a safety trip.
Trip values in the DCS or safety logic solver should be derated by 2%.
Safety response time: 1.5 sec
6.4.4 Product life
50 years – based on worst case component wear-out mechanisms – not based
on wear-out process wetted materials.
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7 Product Certifications
7.1 Rosemount™ 2088
Mount directly to the impulse line without using an additional mounting
bracket or mount directly to a wall, panel, or two-inch pipe using an optional
mounting bracket.
7.1.1 European Directive Information
A copy of the EU Declaration of Conformity can be found at the end of the
Quick Start Guide. The most recent revision of the EU Declaration of
Conformity can be found at Emerson.com/Rosemount.
7.1.2 Ordinary Location Certification
As standard, the transmitter has been examined and tested to determine that
the design meets the basic electrical, mechanical, and fire protection
requirements by a nationally recognized test laboratory (NRTL) as accredited
by the Federal Occupational Safety and Health Administration (OSHA).
7.1.3 North America
E5 USA Explosionproof (XP) and Dust-Ignitionproof (DIP)
Certificate: 1V2A8.AE
Standards: FM Class 3600 – 2011, FM, Class 3615 – 2006, FM Class 3616 –
2011, FM Class 3810 – 2005, ANSI/NEMA 250 – 1991
Markings: XP CL I, DIV 1, GP B, C, D; DIP CL II, DIV 1, GP E, F, G; CL III; T5(–
40 °C ≤ Ta ≤ +85 °C); Factory Sealed; Type 4X
I5 USA Safety (IS) and Nonincendive (NI)
Certificate: 0V9A7.AX
Standards: FM Class 3600 – 1998, FM Class 3610 – 2010, FM Class 3611 –
2004, FM Class 3810 – 1989
Markings: IS CL I, DIV 1, GP A, B, C, D; CL II, DIV 1, GP E, F, G; Class III; DIV 1
when connected per Rosemount drawing 02088-1018; NI CL 1,
DIV 2, GP A, B, C, D; T4(–40 °C ≤ Ta ≤ +70 °C); Type 4x
Special Condition for Safe Use (X):
1. The Rosemount 2088 Transmitter with the transient terminal block
(Option code T1) will not pass the 500 Vrms dielectric strength test
and this must be taken into account during installation.
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C6 Canada Explosionproof, Intrinsic Safety and Division 2, Dust-
Ignitionproof
Certificate: 1015441
Standards: CAN/CSA C22.2 No. 0-M91 (R2001), CSA Std C22.2 No.
25-1966, CSA Std C22.2 No. 30-M1986, CAN/CSA-C22.2 No.
94-M91, CSA Std C22.2 No. 142-M1987, CAN/CSA-C22.2 No.
157-92, CSA Std C22.2 No. 213-M1987, ANSI-
ISA-12.27.01-2003
Markings: Explosionproof for Class I, Division 1, Groups B,C and D; Dust-
Ignitionproof Class II, Division 1, Groups E, F, G; Class III
Division 1; Intrinsically Safe Class I, Division 1 Groups A, B, C, D
when connected in accordance with Rosemount drawing
02088-1024, Temperature Code T3C; Class I Division 2 Groups
A, B, C and D; Type 4X; Factory Sealed; Single Seal
7.1.4 Europe
ED ATEX Flameproof
Certificate: KEMA97ATEX2378X
Standards: EN60079-0:2012 + A11:2013, EN60079-1:2014,
EN60079-26:2015
Markings: II 1/2 G Ex db IIC T6....T4, Ga/Gb, T6(–60 °C ≤ Ta ≤ +70 °C),
T4/T5(–60 °C ≤ Ta ≤ +80 °C)
Special Conditions for Safe Use (X):
1. This device contains a thin wall diaphragm. Installation, maintenance
and use shall take into account the environmental conditions to which
the diaphragm will be subjected. The manufacturer’s instructions for
installation and maintenance shall be followed in detail to assure
safety during its expected lifetime.
2. Flameproof joints are not intended for repair.
3. Non-standard paint options may cause risk from electrostatic
discharge. Avoid installations that could cause electrostatic build-up
on painted surfaces, and only clean the painted surfaces with a damp
cloth. If paint is ordered through a special option code, contact the
manufacturer for more information.
I1 ATEX Intrinsic Safety
Certificate: BAS00ATEX1166X
Standards: EN60079-0:2012 + A11:2013, EN60079-11:2012
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