Rosemount Analytical 402, 402VP Specifications
Rosemount™ 402 and 402VP
Contacting Conductivity Sensors
Product Data Sheet
June 2017
LIQ-PDS-402
Reliable conductivity measurements for your process
With Rosemount 402 and 402VP contacting conductivity sensors, you will be able to accurately measure electrolytic conductivity in a
broad range of applications from high purity water to clean cooling water. The Rosemount 402 and 402VP contacting conductivity
sensors are ideal for use in clean, non-corrosive liquid having conductivity less than 20,000 μS/cm.
Rosemount 402/402VP Contacting Conductivity Sensors
Overview
Minimize Start-up and Installation Time
A factory-measured cell constant ensures out-of-the-box
accuracy and no initial calibration requirements.
Available in cell constants of 0.01, 0.1, and 1.0/cm.
Meet Your Process Mounting Needs
The sensors are designed to be retracted through a 1¼ in. ball
valve assembly (sold separately).
Sensors may be removed from process piping without having
to shutdown or drain the line.
Offered with Variopol (VP6) quick disconnect fitting.
June 2017
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
A Robust Two-electrode Design
The sensors have concentric titanium electrodes separated by
a PEEK insulator.
An EPDM O-ring seals the internal parts of the sensor from the
process liquid.
Maximum operating temperature up to 100 °C.
Maximum pressure rating up to 200 psig.
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Engineering Specifications . . . . . . . . . . . . . . . . . . . . . . . .11
www.Emerson.com/RosemountLiquidAnalysis
June 2017
Rosemount 402/402VP Contacting Conductivity Sensors
Ordering Information
The Rosemount 402 Contacting Conductivity sensor is intended to measure
electrolytic conductivity in clean water applications. These sensors can be configured
with either a 0.01/cm, 0.1/cm, or 1.0/cm to accommodate varying levels of
conductivity. The sensors are available with either an integral cable connection (402)
or Variopol (VP6) connector (402VP). Variopol cables sold separately (see accessories).
Additional Information
Specifications: see “Specifications” on page 5
Dimensional drawings: see “Dimensional Drawings” on page 7
Accessories: see “Accessories” on page 10
Engineering Specifications: see “Engineering Specifications” on page 11
Table 1. Rosemount 402 Contacting Conductivity Sensor ordering information
Model Sensor type
402 Contacting Conductivity Sensor
Cell constant
11 0.01/cm
12 0.1/cm
13 1.0/cm
Temperature compensation
_ Pt-1000
54 Pt-100
55 10K Ohm TC
(1)
Option 1
_ No selection
31 Retraction assembly kit
(2)
Option 2
_ No selection
60 Integral junction box
(3)
Option 3
_ No selection
61 Sensor cable terminated for use with sensor junction box
(3)
Typical Model Number: 402-11-_-60-61
1. Recommended for use with Rosemount transmitters 1056, 56, 1057, 1066, and 5081.
2. Assembly contains nipple, ball valve, and retraction body.
3. Interconnecting cable between the junction box and transmitter must be purchased as a separate item.
www.Emerson.com/RosemountLiquidAnalysis
3
Rosemount 402/402VP Contacting Conductivity Sensors
Table 2. Rosemount 402VP Contacting Conductivity Sensor with Variopol cable connection
ordering information
Model Sensor type
402VP Contacting Conductivity Sensor
Cell constant
11 0.01/cm
12 0.1/cm
13 1.0/cm
Temperature compensation
_ Pt-1000
54 Pt-100
55 10K Ohm TC
Options
_ No selection
31 Retraction assembly kit
(1)
(2)
June 2017
Typical Model Number: 402VP-11-_-31
1. Recommended for use with Rosemount transmitters 1056, 56, 1057, 1066 and 5081,
2. Assembly contains nipple, ball valve, and retraction body.
4
www.Emerson.com/RosemountLiquidAnalysis
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