Emerson Rosemount 2110 User manual

Quick Start Guide
00825-0100-4029, Rev CC
March 2022
Rosemount™ 2110 Level Switch
Vibrating Fork

Contents
About this guide...........................................................................................................................3
Installation................................................................................................................................... 5
Prepare the electrical connections..............................................................................................10
Connect wiring and power up.....................................................................................................18
Product certifications................................................................................................................. 21
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2 Rosemount 2110 Level Switch

1 About this guide
This Quick Start Guide provides basic guidelines for the Rosemount 2110.
Refer to the Rosemount 2110 Reference Manual for more instructions. The
manual and this guide are also available electronically at
Emerson.com/Rosemount.
1.1 Safety messages
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.
Repair, e.g. substitution of components, etc. may jeopardize safety and is
under no circumstances allowed.
WARNING
Explosions could result in death or serious injury.
The level switch must only be installed and operated in non-hazardous
(ordinary) locations.
WARNING
Electrical shock could cause death or serious injury.
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.
Avoid contact with the leads and terminals. High voltage that may be
present on leads can cause electrical shock.
Ensure the wiring is suitable for the electrical current and the insulation is
suitable for the voltage, temperature, and environment.
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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.
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
Hot surfaces
The flange and process seal may be hot at high process temperatures. Allow
to cool before servicing.
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2 Installation
2.1 Fork alignment in a pipe installation
The fork is correctly aligned by positioning the groove or notch as indicated
(Figure 2-1).
Figure 2-1: Correct Fork Alignment for Pipe Installation
OK
A
B
A. Tri Clamp process connections have a circular notch
B. Threaded process connections have a groove
2.2 Fork alignment in a vessel (tank) installation
The fork is correctly aligned by positioning the groove or notch as indicated
(Figure 2-2).
Figure 2-2: Correct Fork Alignment for Vessel (Tank) Installation
OKOK
OK
OK OK
A
B
A. Tri Clamp process connections have a circular notch
B. Threaded process connections have a groove
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2.3 Mounting the threaded version
2.3.1 Threaded vessel (tank) or pipework connection
Procedure
1. Seal and protect the threads. Use anti-seize paste or PTFE tape
according to site procedures.
A gasket may be used as a sealant for BSPP (G) threaded connections.
2. Screw the level switch into the process connection.
Note
Tighten using the hexagon nut only.
Figure 2-3: Vertical Installation
A
A. Gasket for BSPP (G) threaded connection
Figure 2-4: Horizontal Installation
A
A. Gasket for BSPP (G) threaded connection
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2.3.2 Threaded flange connection
Procedure
1. Place the customer-supplied flange and gasket on the vessel (tank)
nozzle.
A
A. Gasket (customer supplied)
2. Tighten the bolts and nuts with sufficient torque for the flange and
gasket.
3. Seal and protect the threads. Use anti-seize paste or PTFE tape
according to site procedures.
A gasket may be used as a sealant for BSPP (G) threaded connections.
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4. Screw the level switch into the flange thread.
Note
Tighten using the hexagon nut only.
A
A. Gasket for BSPP (G) threaded connection
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2.4 Mounting the Tri Clamp version
Procedure
1. Lower the level switch into the flange face.
A
A. Seal (supplied with Tri Clamp)
2. Fit the Tri Clamp.
Note
The Tri Clamp and seal are supplied in an accessory kit that has to be
ordered separately. See the Rosemount 2110 Product Data Sheet for
ordering information.
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3 Prepare the electrical connections
3.1 Cable selection
Twisted-pairs and shielded wiring is recommended for environments with
high EMI (electromagnetic interference). Two wires can be safely connected
to each terminal screw. Maximum wire size is 15 AWG.
3.2 Cable glands/conduits
The cable gland is integrated in the four-position plug of the level switch. Do
not make any modifications to the level switch.
3.3 Electronics options
Figure 3-1: Direct Load Switching – Electronics Option Code 0
0V/N
+V/L
PE
Load
Table 3-1: Electrical Parameters – Electronics Option Code 0
Parameter Value
Load switching ac/dc
Direct load switching ac/dc
Maximum switched load 500 mA
Maximum peak load 5 A for 40 ms maximum
Minimum switched load 20 mA continuous
Voltage drop 6.5 V @ 24 Vdc or 5 V @ 240 Vac
Current draw (load off) < 3 mA continuous
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Figure 3-2: PNP Switching – Electronics Option Code 1
+V
0V
PLC
PE
Table 3-2: Electrical Parameters – Electronics Option Code 1
Parameter Value
PNP output dc
PNP for PLC/SPS connection dc
Maximum switched load 500 mA
Maximum peak load 5 A for 40 ms maximum
Voltage drop < 3 V
Supply current 3 mA nominal
Output current (load off) < 0.5 mA
3.4 Power supply
The Direct Load electronics operate on 21 - 264 Vdc or 21 - 264 Vac (50/60
Hz) at the level switch terminals.
The PNP electronics operate on 18 - 60 Vdc at the level switch terminals.
3.5 Mode selection
Table 3-3 and Table 3-4 show how the mode selection is determined from
the wiring connections. Modes are “Dry on, high level alarm” and “Wet on,
low level alarm”.
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Figure 3-3: Wiring Connections Orientation
1
3
2
AB
A. Orientation cut-out
B. PE (ground)
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Table 3-3: Mode Selection By Customer Wiring – Electronics Option Code 0
Mode: dry on, high level alarm Mode: wet on, low level alarm
R
N (21-264 Vac, 50/60 Hz)L1
0 V (21-264 Vdc)+V
2A
(T)
1
3
R
N (21-264 Vac, 50/60 Hz)L1
0 V (21-264 Vdc)+V
2A
(T)
1
2
R = external load (must be wired)
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Table 3-4: Mode Selection By Customer Wiring – Electronics Option Code 1
Mode: dry on, high level alarm Mode: wet on, low level alarm
R
PLC input
(18-60 Vdc)0 V +V
2A
(T)
1
2
3
R
PLC input
(18-60 Vdc)
0 V
+V
2A
(T)
1
2
3
R = external load
3.6 Functions
Table 3-5 shows the switched electrical outputs from the PNP and Direct
Load electronics for each mode selection.
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Table 3-5: Functions
Mode: dry on, high level alarm Mode: wet on, low level alarm
PLC (positive output)
0 V
+V
PLC
Sig
∆U
<3V
L
123
+ -I/P
PLC
L
<100µA
123
+ -I/P
PLC
∆U
<3V
L
132
+ -I/P
PLC
L
<100µA
132
+ -I/P
PLC
PNP dc
0 V
+V
R
IL
V
123
+V 0 V
∆U
<3V
<100µA
L
123
+V 0 V
123
+V 0 V
∆U
<3V
123
+V 0 V
<100µA
L
Load switching ac/dc
V
L /+V
R
IL
∆U
<12 V
0 V
N
+V
L1
13
<3 mA
0 V
N
+V
L1
13
∆U
<12 V
0 V
N
+V
L1
12
<3 mA
0 V
N
+V
L1
12
LED
LED on
continuously
LED flashes every
second
LED on
continuously
LED flashes every
second
Electrical load
= Load on
= Load off
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Note
For direct load switching, a DPST (Double Pole, Single Throw) (on/off) switch
must also be fitted for safe disconnection of the power supply. Fit the DPST
switch as near to the Rosemount 2110 as possible, keeping the switch free
of obstructions. Label the switch to indicate it is the supply disconnection
device for the Rosemount 2110.
3.6.1 Relay connection warning (for direct load switching)
The Rosemount 2110 requires a minimum current of 3 mA, which continues
to flow when it is ‘off’. When selecting a relay to wire in series with the
Rosemount 2110, the drop-out voltage of the relay must be greater than the
voltage generated across the relay coil when 3 mA flows through it.
3.7 Grounding
Make sure grounding is done according to national and local electrical
codes. Failure to do so may impair the protection provided by the
equipment.
3.7.1 Signal cable shield grounding at power supply end
Make sure the instrument cable shield is:
•Trimmed close and insulated from touching the housing.
•Continuously connected throughout the segment.
•Connected to a good earth ground at the power supply end.
Figure 3-4: Signal Cable Shield Grounding at Power Supply End
B
B
C C
D
A
A. Trim shield and insulate
B. Minimize distance
C. Trim shield
D. Connect shield back to the power supply ground
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3.7.2 Signal cable shield grounding at instrument end
Make sure the instrument cable shield is:
•Trimmed close and insulated at the power supply end.
•Continuously connected throughout the segment.
•Connected to the potential earth (ground) terminal at the instrument
end.
Figure 3-5: Signal Cable Shield Grounding at Instrument End
B
B
C C
A
D
A. Trim shield and insulate
B. Minimize distance
C. Trim shield
D. Connect shield ground at instrument end
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4 Connect wiring and power up
The Rosemount 2110 meets IP66 and IP67 weatherproof ratings when
correctly assembled with the supplied connector and suitable cable. Ensure
seals are in place to maintain the weatherproof ratings.
Procedure
1. Verify the power supply is disconnected.
2. Remove the plug cover and cable gland.
Keep the fixing screw and screw seal safe.
A
A. Fixing screw and screw seal
3. Pull the cable through the cable gland.
Cable diameter: 0.24 to 0.31 in. (6 to 8 mm)
A
A. PG9 cable gland provided
4. Connect the cable wires.
Table 3-3 and Table 3-4 show the wiring connections for each
electronics option.
5. Ensure proper grounding.
6. Re-fit the plug cover and tighten the cable gland.
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a) The plug cover can be re-fitted in any one of four positions.
A
B
A. Fork alignment indicator
B. Optional plug positions
b) Ensure the cable gland is pointing downwards or sideways.
OK OK
c) Secure the plug cover with the plug screw and washer, and
tighten cable gland.
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Quick Start Guide 19

d) If possible, arrange the wiring with a drip loop.
7. Connect the power supply when ready to apply power.
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