Rosemount Analytical 3800 Specifications

Rosemount™ 3800

Autoclavable and Steam Sterilizable pH Sensors

Product Data Sheet

June 2017

LIQ-PDS-3800

 Drift free reference - designed with silver-silver chloride reference electrode with gelled electrolyte and proprietary liquid junction.

 Sterilizations up to 140 °C - Improved GPHT glass technology increases high temperature stability.

 Fast, accurate and improved stability reliable measurements after sterilization cycles.

 Robust design - withstands multiple steam sterilization cycles.

 Individual quality certification with a list of materials for each sensor.

Rosemount 3800 Autoclavable and Steam Sterilizable pH Sensor

Overview

Features and Applications

Designed for accuracy and stability in a heat intensive
application. These pH sensors are optimized for autoclaving and
steam sterilization. Building on PERpH-X
technology, the Rosemount 3800 sensors exhibit unparalleled
stability after exposure to high temperature sterilization.

Rosemount 3800 sensors are available in three different
insertion lengths, 120 mm, 225 mm and 325 mm.

The Rosemount 3800 sensor has no integral temperature sensor
and is supplied with a coaxial S8 Pg 13.5 connector.

The PUR-sense reference electrode uses a silver chloride sensor
in combination with a new gelled potassium chloride electrolyte
to provide a stable reference potential through the single
proprietary ceramic reference junction.

Rosemount 3800 test data indicates the sensor drift is well
within 0.1pH (0.02-0.07 pH). The proven stability of the
Rosemount 3800 sensors translates into less maintenance and
more reliable measurements even after multi autoclaving cycles.
These sensors are at least two times more stable than any other
pH sensor in this challenging application.

June 2017

®

and AccuGlass®

Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Product Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 1 on page 3 shows the stability test results. The tests

were conducted in an autoclave at 125 °C for 45 minutes
followed by a simulated cell-culture process for eight
consecutive days. All pH sensors were calibrated in buffer
solution prior to drift measurements. Testing media for this test
was cell-culture or simulated perfusion culture process.

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Dimensional and Installation Drawings . . . . . . . . . . . . . . 5

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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www.Emerson.com/RosemountLiquidAnalysis

June 2017

Rosemount 3800 Autoclavable and Steam Sterilizable pH Sensor

Specifications

Figure 1. Drift performance graph

Vertical axis on the chart above is in Sensor Offset, mV. The vertical arrow on the chart, indicates time when autoclaving was carried
out. All pH-sensors were calibrated in buffer solution at time zero.

Table 1. Rosemount 3800 sensor specifications

Range

0 to 14 pH

Sensor type

Pur-sense 3800, GPHT glass with hemi bulb

Wetted materials

Glass, ceramic and EPDM O-ring USP VI

Temperature range

up to 221 °F (steam up to 284 °F) [up to 105 °C (steam up to 140 °C)]

Pressure range

max 6 bar at 105 °C [max 72 psig (600kPa) at 221 °F]

Reference junction

Single ceramic junction

Dimensions

12 mm OD, shaft length -01= 120 mm, -02 = 225 mm , -03 = 325 mm

Electrolyte

Gelled polymer

Cable connector

Coaxial S8

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