Rosemount™ 222
Toroidal Flow Through Conductivity Sensors
Reference Manual
00809-0100-3222, Rev AA
September 2018
2
Safety Information
WARNING
HIGH PRESSURE AND TEMPERATURE HAZARD
Before removing the senosr, reduce the process pressure to 0 psig and cool down the process temperature.
Failure to reduce the pressure and temperature may cause serious injury to personnel.
CAUTION
EQUIPMENT DAMAGE
The wetted sensor materials may not be compatible with process composition and operating conditions. Application
compatibility is entirely your responsibility.
3
4
Reference Manual Contents
00809-0100-3222 September 2018
Contents
Chapter 1 Description and specifications ...................................................................................... 7
1.1 Description ..................................................................................................................................... 7
1.2 Unpacking and inspection ............................................................................................................... 7
1.3 Sensor specifications ....................................................................................................................... 7
1.4 Ordering information ...................................................................................................................... 8
Chapter 2 Install ......................................................................................................................... 11
2.1 Installing the sensor ...................................................................................................................... 11
Chapter 3 Wiring ........................................................................................................................ 15
3.1 Wiring the sensor .......................................................................................................................... 15
Chapter 4 Calibration .................................................................................................................. 19
4.1 Sensor calibration ......................................................................................................................... 19
Chapter 5 Troubleshooting ......................................................................................................... 21
5.1 Troubleshooting ........................................................................................................................... 21
Chapter 6 Accessories ................................................................................................................. 23
Chapter 7 Return of Materials ..................................................................................................... 25
Rosemount 222 Sensors 5
Contents Reference Manual
September 2018 00809-0100-3222
6 Reference Manual
Reference Manual Description and specifications
00809-0100-3222 September 2018
1 Description and specifications
1.1 Description
The Rosemount 222 toroidal flow through conductivity sensor measures conductivity in
highly conductive liquids up to 2 S/cm (2,000,000 μS/cm). A noninvasive flow through
design allows for in-line installations without any obstruction to sample and makes these
sensors ideal for use with viscous or fibrous liquids.
1.2 Unpacking and inspection
Complete the following steps when you unpack your instrument.
Procedure
1. Inspect the shipping container. If there is damage, contact the shipper immediately
for instructions.
2. Save the box.
3. If there is no apparent damage, unpack the container. If there is no apparent
damage, unpack the container and remove the sensor.
4. Ensure that all items shown on the packing list are present. If items are missing, If
items are missing, contact your local Customer Care representative
5. Save the shipping container and packaging.
1.3 Sensor specifications
Table 1-1: Sensor Specifications
Sensor specification Description
Wetted materials Teflon-lined carbon steel pipe, with carbon steel after
flanges; 316 stainless steel outer flange (option -21)
Process connection 1 in. 150 lb or 300 lb raised face threaded ANSI B16.5
flange
2 in. 150 lb or 300 lb raised face threaded ANSI B16.5
flange
Cable length 20 ft. (6.1 m)
Maximum cable length 100 ft. (30 m)
Cell constant (nominal) 1 in. diameter - 6/cm
2 in. diameter - 4/cm
Rosemount 222 Sensors 7
Description and specifications Reference Manual
September 2018 00809-0100-3222
Table 1-2: Temperature and Pressure
Flange Temperature range Maximum pressure
150 lb 5 to 182 °C (41 to 360 °F) 125 psig (963 kPa [abs])
300 lb 250 psig (1825 kPa [abs])
Table 1-3: Pressure (For CRN Registration Only)
Option Flange Diameter Maximum pressure
-01 150 lb 1 in. 125 psig (963 kPa [abs])
-02 2 in.
-05 300 lb 1 in. 200 psig (1480 kPa [abs])
-06 2 in. 250 psig (1825 kPa [abs])
-01-21 150 lb 1 in. 125 psig (963 kPa [abs])
Table 1-4: Weight/Shipping Weight (Weights are rounded up to the nearest 1 lb or 0.5 kg)
Flange Diameter Weight Shipping weight
150 lb 1 in. 11 lb (5.0 kg) 14 lb (6.5 kg)
300 lb 17 lb (8.0 kg) 20 lb (9.0 kg)
150 lb 2 in. 33 lb (15.0 kg). 37 lb (17.0 kg)
300 lb 35 lb (16.0 kg) 40 lb (18.0 kg)
1.4 Ordering information
Table 1-5: Rosemount™ 222 Flow Through Toroidal Conductivity Sensor Ordering
Information
Model Sensor type
222 Flow Through Toroidal Conductivity Sensor
(1)
Sizes
01 1 inch, 150 lb flange
02 2 inch, 150 lb flange
05 1 inch, 300 lb flange
06 2 inch, 300 lb flange
Flange option
20 No selection
21 316 stainless steel outer flange
Cable type
54 Standard integral cable
8 Reference Manual
(2)
(3)
Reference Manual Description and specifications
00809-0100-3222 September 2018
Table 1-5: Rosemount™ 222 Flow Through Toroidal Conductivity Sensor Ordering
Information (continued)
Typical Model Number: 222-01-_-54
(1) Grounding rings are required for proper operation if the outer flanges of the Rosemount 222
sensor are substituted by the customer with non-conductive flanges. Order SQ 7430 and consult
the factory for pricing.
(2) Only available with option -01.
(3) Cables can be extended using remote junction box PN 23550-00 and extension cable.
Rosemount 222 Sensors 9
Description and specifications Reference Manual
September 2018 00809-0100-3222
10 Reference Manual
Reference Manual
00809-0100-3222 September 2018
Install
2 Install
2.1 Installing the sensor
Prerequisites
First, decide whether the initial calibration will be done in the shop before installing the
sensor or in the process piping after installing the sensor. For information about in-shop
and in-process calibrations, refer to the Sensor calibration section.
Note
Install the sensor in a location where it is completely filled with process liquid. A vertical
pipe run with the flow from bottom to top is best.
Procedure
1. Remove the grounding strap from the outer flanges. See Figure 2-1.
Save the strap and all the hardware for reassembly.
2. Carefully remove the nuts, bolts, insulating bushings, and washers from the flanges.
Keep them safe.
3. Separate the flange sets and remove the flange gaskets. Keep them safe.
4. Install the outer flanges on the process piping as per dimensions noted in Figure 2-2
and Figure 2-3
Use pipe joint compound or pipe tape to ensure the connections do not leak.
5. Install a ½ in. FNPT thermowell in the process piping within 6 ft. (1.8 m) of the
sensor.
For best results place the thermowell as close as possible to the sensor.
6. Put the sensor between the process mating flanges with the flange gaskets inserted
between each set of flanges.
If the process piping is lined with a non-conductive material, a metal orifice plate
(contact ring) must be installed between the flanges. Consult the factory for more
information.
7. Align the bolt holes.
8. Insert an insulating sleeve in each bolt hole. See Figure 2-1.
9. Place a metal washer on each bolt, followed by an insulating washer.
Insert the bolt through the insulating sleeve.
10. Put an insulating washer followed a metal washer on each bolt.
Note
Before tightening the bolts (step 11), be sure the flange gaskets are installed
between the system piping and the sensor and that the insulating sleeves and
washers are in place. For the sensor to operate properly, there must no metal to
metal contact between the sensor and the process piping.
11. Screw a nut onto each bolt and tighten according to torque given in Table below.
Rosemount 222 Sensors 11
Install Reference Manual
September 2018 00809-0100-3222
Follow the torquing sequence shown in Figure 2-1.
Flange Torque
1 inch flange bolts 10 ft-lb (7.37 N-m)
2 inch flange bolts 25 ft-lb (18.43 N-m)
Note
Do not overtighten the bolts.
12. Connect the grounding strap between the two outer flanges using the screws and
washers removed in step 1.
If an orifice plate contact ring is being used, connect the shorting strap to the two
contact rings.
13. Install the temperature sensor in the thermowell. Use Teflon tape on the pipe
threads.
The insertion length is adjustable from 1.4 to 4.0 inches (36 to 102 mm). The
temperature sensing zone, which extends 1.3 inches (33 mm) from tip of the
sensor, must be inside the thermowell
Figure 2-1: Rosemount 222 Toroidal Conductivity Sensor/Assembly Installation
12 Reference Manual
Reference Manual Install
00809-0100-3222 September 2018
Figure 2-2: Rosemount 222 Dimensional Drawings - Option -01 and -02
Rosemount 222 Sensors 13
Install Reference Manual
September 2018 00809-0100-3222
Figure 2-3: Rosemount 222 Dimensional Drawings - Option -05 and -06
14 Reference Manual
Reference Manual
00809-0100-3222 September 2018
Wiring
3 Wiring
3.1 Wiring the sensor
Keep sensor wiring away from AC conductors and high current demanding equipment. Do
not cut the cable.
NOTICE
For additional wiring information on this product, please refer to the Liquid Transmitter
Wiring Diagrams.
Figure 3-1: Wire Functions
Figure 3-2: Rosemount 222 Sensor Wiring to Rosemount 1056 and 56 Transmitters
Rosemount 222 Sensors 15
Wiring Reference Manual
September 2018 00809-0100-3222
Figure 3-3: Rosemount 222 Sensor Wiring to Rosemount 1066 Transmitter
16 Reference Manual
Reference Manual Wiring
00809-0100-3222 September 2018
Figure 3-4: Rosemount 222 Sensor Wiring to Rosemount 5081 Transmitter
Rosemount 222 Sensors 17
Wiring Reference Manual
September 2018 00809-0100-3222
Figure 3-5: Wiring Sensor Through a Remote Junction Box
Wire cable point to point. For wiring at the transmitter end, refer to the appropriate
transmitter wiring diagram.
Figure 3-6: Remote Junction Box (PN 23550-00)
18 Reference Manual
Reference Manual
00809-0100-3222 September 2018
Calibration
4 Calibration
4.1 Sensor calibration
The nominal cell constant of the 1 in. diameter sensor is 6/cm and the nominal cell
constant of the 2 in. diameter sensor is 4/cm. The error in the cell constant is about ±10%,
so conductivity readings made using the nominal cell constant will have an error of at least
±10%.
For higher accuracy the sensor must be calibrated. The sensor can be calibrated using a
standard solution or a previously calibrated sensor and transmitter. Calibration against a
standard solution requires that the sensor and outer flanges be removed from the process
piping. Generally it is a useful method only when the sensor is first installed. Otherwise,
the sensor should be calibrated in place against a referee sensor and transmitter.
To calibrate against a standard solution, screw a short length of metal pipe into one of the
outer flanges and cap the open end of the pipe. Stand the sensor on the capped end and
fill it with standard to the level of the upper surface of the second outer flange. Be sure the
shorting strap is connected to both flanges.
Adjust the analyzer reading to match the known conductivity of the standard. Do not
place a temperature sensor or any object inside the conductivity sensor during calibration.
Doing so will alter the measured conductivity and introduce an error in the measurement.
Once the sensor has been installed in the process piping, removing it for calibration is
impractical. In this case, calibrate the sensor against a referee sensor and transmitter,
ideally while both sensors are simultaneously measuring the same process liquid. If this is
not practical, calibrate the sensor against the results of a measurement made on a grab
sample.
For more detailed information on calibration methods, please reference application data
sheet ADS-43-025 available on the Emerson Liquid Analysis website
Rosemount 222 Sensors 19
Calibration Reference Manual
September 2018 00809-0100-3222
20 Reference Manual
Reference Manual Troubleshooting
00809-0100-3222 September 2018
5 Troubleshooting
5.1 Troubleshooting
Figure 5-1: Disconnect Wires From Transmitter Before Measuring Resistance
Table 5-1: Resistance vs. Temperature for Temperature Compensation (PT-100 RTD)
Temperature Resistance
10 °C (50 °F) 103.9 Ω
20 °C (68 °F) 107.8 Ω
25 °C (77 °F) 109.7 Ω
30 °C (86 °F) 111.7 Ω
40 °C (104 °F) 115.5 Ω
50 °C (122 °F) 119.4 Ω
5.1.1 Checking the toroid operation
Use the following procedure to check the operation of the toroids.
Procedure
1. Disconnect the shorting strap from one of the outer flanges.
The conductivity reading will drop to zero.
2. Pass a short piece of heavy gauge wire through the space between the toroid
assembly and the pipe.
3. Connect the ends of the wire to a resistance decade box.
4. Turn off temperature correction in the transmitter.
Rosemount 222 Sensors 21
Troubleshooting Reference Manual
September 2018 00809-0100-3222
If raw conductivity is available as a temperature compensation selection, choose
raw.
If raw is not available, choose manual temperature correction and set the
temperature to 25 °C (77 °F).
5. Adjust the resistance to the values shown in the table below. See Table 5-2.
The conductivity reading displayed by the transmitter should be close to the values
shown.
Table 5-2: Resistance Values
Resistance 1-inch sensor K = 6/cm 2-inch sensor K = 4/cm
100 Ω 60 mS/cm 40 mS/cm
200 Ω 30 mS/cm 20 mS/cm
The toroids are working properly if increasing the resistance by a factor of two
causes the displayed conductivity to decrease by a factor of two.
22 Reference Manual
Reference Manual
00809-0100-3222 September 2018
Accessories
6 Accessories
Part number Description
2001492 Stainless steel tag (must specify marking)
23550-00 Remote junction box without preamplifier
23294-00 Interconnecting extension cable, unshielded, prepped (for use with
remote junction box)
23294-05 Interconnecting extension cable, shielded, prepped (for use with remote
junction box)
9200276 Interconnecting extension cable, shielded, unprepped (for use with
remote junction box)
2002557 Insulation kit, 1 in. 150 lb flange, 2 sets *
2002558 Insulation kit, 1 in. 300 lb flange, 2 sets *
2002559 Insulation kit, 2 in. 150 lb flange, 2 sets *
2002560 Insulation kit, 2 in. 300 lb flange, 2 sets *
8950101 Pt-100 RTD assembly
* Each insulation kit contains two flange gaskets and sufficient insulating sleeves,
insulating washers, and stainless steel washers to replace both flange seals of one sensor.
The kit does not contain flange bolts or nuts.
Rosemount 222 Sensors 23
Accessories Reference Manual
September 2018 00809-0100-3222
24 Reference Manual
Reference Manual Return of Materials
00809-0100-3222 September 2018
7 Return of Materials
For repair and warranty inquiries, please contact Rosemount Customer Care to obtain a
Return Material Authorization (RMA) number. Drain the sensor of fluids before shipping it
back to Rosemount.
Rosemount 222 Sensors 25
00809-0100-3222
Rev. AA
2018
GLOBAL HEADQUARTERS
Emerson Automation Solutions
6021 Innovation Blvd
Shakopee, MN 55379, USA
+1 800 999 9307 or +1 952 906 8888
F +1 952 949 7001
liquid.csc@emerson.com
EUROPE
Emerson Automation Solutions
Neuhofstrasse 19a P.O. Box 1046
CH-6340 Baar
Switzerland
T + 41 (0) 41 768 6111
F + 41 (0) 41 768 6300
liquid.csc@emerson.com
Linkedin.com/company/Emerson-Automation-Solutions
twitter.com/rosemount_news
Facebook.com/Rosemount
youtube.com/RosemountMeasurement
google.com/+RosemountMeasurement
AnalyticExpert.com
NORTH AMERICA
Emerson Automation Solutions
8200 Market Blvd
Chanhassen, MN 55317
Toll Free +1 800 999 9307
F +1 952 949 7001
liquid.csc@emerson.com
MIDDLE EAST AND AFRICA
Emerson Automation Solutions
Emerson FZE
Jebel Ali Free Zone
Dubai, United Arab Emirates, P.O. Box 17033
T +971 4 811 8100
F +971 4 886 5465
liquid.csc@emerson.com
©
2017 Rosemount. All rights reserved.
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. The contents of this publication are presented for information
purposes only, and, while effort has been made to ensure their accuracy, they are not to
be construed as warranties or guarantees, expressed or implied, regarding the products or
services described herein or their use or applicability. All sales are governed by our terms
and conditions, which are available on request. We reserve the right to modify or improve
the designs or specifications of our products at any time without notice.
ASIA-PACIFIC
Emerson Automation Solutions
1 Pandan Crescent
Singapore 128461
Singapore
T +65 777 8211
F +65 777 0947
liquid.csc@emerson.com
Loading...