Emerson Rosemount 225 Quick Start Guide
00825-0100-3225, Rev AA
Rosemount™ 225
Toroidal Conductivity Sensors
Quick Start Guide
May 2020
Quick Start Guide May 2020
Safety information
WARNING
High pressure and temperature hazard
Failure to reduce the pressure and temperature may cause serious injury to personnel.
Before removing the sensor, reduce the process pressure to 0 psig and cool down the process
temperature.
CAUTION
Equipment damage
The wetted sensor materials may not be compatible with process composition and operating
conditions.
Application compatibility is entirely the operator's responsibility.
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.
Contents
Description and specifications......................................................................................................3
Install........................................................................................................................................... 5
Calibration................................................................................................................................. 15
Maintaining and troubleshooting............................................................................................... 22
Accessories................................................................................................................................ 28
Return of materials.....................................................................................................................29
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May 2020 Quick Start Guide
1 Description and specifications
1.1 Toroidal conductivity sensors
Rosemount 225 Toroidal Conductivity Sensors are intended to be used in
many pharmaceutical and food and beverage applications where a sanitary
design is required. These corrosion and fouling resistant sensors are ideal for
measuring the concentration of CIP solutions, detecting product/water
interfaces, checking product quality, and monitoring eluents in
chromatographic separations.
1.2 Specifications
Cell constant (nominal):
Minimum conductivity:
Maximum conductivity:
Process connection:
Conformance to 3-A
sanitary standards:
Compliance with FDA
food contact
requirements:
Compliance with USP
Class VI:
Standard cable length:
Maximum cable length:
Weight/shipping weight:
2.7/cm
200 µS/cm (15 µS/cm when used with
Rosemount 1056 and 56 transmitters)
2 S/cm
2-in. Tri Clamp
Sensors with option -07 meet 3-A sanitary
standards for sensors and sensor fittings and
connections used on milk and milk products
equipment (74-06).
Sensors with option -07 are molded from
PEEK that meet 21CF177.2415.
Sensors with option -08 are molded from
PEEK that meet USP Class VI requirements
20 ft. (6.1 m)
200 ft. (61 m), up to 100 ft. (30 m) is
standard.
2 lb./3 lb. (1.0 kg/1.5 kg)
Quick Start Guide 3
Quick Start Guide May 2020
Table 1-1: Maximum Temperature and Pressure
Body
material
option
03 Glass-filled PEEK 230 °F (110 °C) 200 psig (1480
07 Unfilled PEEK (meets
08 Unfilled PEEK (meets
09 Unfilled Tefzel 230 °F (110 °C)
Wetted materials Maximum
temperature
266 °F (130 °C)
21CFR177.2415 and 3A
standard 74-06)
USP Class VI standards)
Maximum
pressure
kpa[abs])
4 Emerson.com/Rosemount
May 2020 Quick Start Guide
2 Install
2.1 Unpack and inspect
Procedure
1. Inspect the shipping container(s). If there is damage, contact the
shipper immediately for instructions.
2. If there is no apparent damage, unpack the container(s).
3. Ensure that all items shown on the packing list are present.
If items are missing, contact your local Customer Care representative
4. Save the shipping container and packaging.
They can be used to return the instrument to the factory in case of
damage.
2.2 Install the sensor
Prerequisites
1. 2-in. Tri Clamp
2. 2-in. type 1 gasket
3. 2-in. tank ferrule or tee
The sensor may be installed in either a tank or pipe using a customersupplied Tri Clamp and tee assembly. Keep at least 1 in (25 cm) between the
sensor and the pipe wall. If clearance is too small, calibrate the sensor in
place. Ensure that the sensor is completely submerged in liquid.
Quick Start Guide 5
Quick Start Guide May 2020
Figure 2-1: Rosemount 225 dimensional drawing
A. Swagelok® connector 316 stainless steel
B. Cap 316 stainless steel
C. Inner diameter
D. Outer diameter
E. Molded housing
Procedure
1. Mount the sensor in the pipe.
2. Mount the sensor in a vertical pipe run with flow from top to bottom.
If the sensor must be mounted in a horizontal pipe run, orient the
sensor in the 3 o'clock or 9 o'clock position.
3. Ensure that the sensor is completely submerged in liquid to the
flange.
2.3
6 Emerson.com/Rosemount
Wire the sensor
Keep sensor wiring away from ac conductors and high current demanding
equipment. Do not cut the cable.
May 2020 Quick Start Guide
NOTICE
For additional wiring information on this product, refer to Emerson.com/
Rosemount-Liquid-Analysis-Wiring.
Figure 2-2: Wire Functions
A. Green: receive
B. Black: receive common
C. White: drive
D. Black: drive common
E. Green: resistance temperature device (RTD) in
F. White: RTD sense
G. Clear: RTD common
H. Clear: shield
I. Black: RTD return
J. Clear: outer shield
Quick Start Guide 7
Quick Start Guide May 2020
Figure 2-3: Wiring Diagram Connecting Rosemount 225-54 Sensor to
Rosemount 1056 and 56 Transmitters
A. Clear
B. White
C. Green
D. Black
E. RTD return
F. RTD sense
G. RTD in
H. RTD shield
I. Receive common
J. Receive
K. Receive shield
L. Outer shield
M. Drive shield
N. Drive
O. Drive common
8 Emerson.com/Rosemount
May 2020 Quick Start Guide
Figure 2-4: Wiring Diagram Connecting Rosemount 225-56 to
Rosemount 1056 and 56 Transmitters
A. Black
B. White
C. Green
D. Clear
E. RTD return
F. RTD sense
G. RTD in
H. RTD shield
I. Receive common
J. Receive
K. Receive shield
L. Outer shield
M. Drive shield
N. Drive
O. Drive common
Quick Start Guide 9
Quick Start Guide May 2020
Figure 2-5: Wiring Diagram Connecting Rosemount 225-54 Sensor to
Rosemount 1066 Transmitter
A. RTD return
B. RTD sense
C. RTD in
D. RTD shield
E. Green
F. White
G. Clear
H. Black
I. Receive B
J. Receive A
K. Receive shield
L. Drive B
M. Drive A
N. Drive shield
10 Emerson.com/Rosemount
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