MOX3 MediceL® Sensor

MOX3 Oxygen Sensor

Part Number: AA829-M10

Document Purpose
The purpose of this document is to present the performance specification of
the MOX3 oxygen gas sensor.

This document should be used in conjunction with the Operating Principles

(OP04) and the Product Safety Datasheet (PSDS 4).

The data provided in this document are valid at 20°C, 50% RH and 1013 mBar
for 3 months from the date of sensor manufacture.

Output signal can drift below the lower limit over time. For guidance on the
safe use of the sensor, please refer to the Operating Principles (OP04).

K E Y F E AT U R E S & B E N E F I T S

Meets the requirements Linear output from 13-month RoHS compliant

of ISO 80601-2-55 0 % to 100 % O2 warranty
 TECHNICAL SPECIFICATIONS Product Dimensions mm
MEASUREMENT N.B. All tolerances ±0.15 mm
Partial pressure unless otherwise stated
Operating Principle
electrochemical
9 mV to 13 mV
Output
in 210 mBar O2
Measurement Range 0 mBar to 1500 mBar O2
Response Time (T90)* <15 s (air to 100% O2)
Baseline Offset* <200 μV TOP
Linear 0% to 100% O2
Linearity (See Note1)

ELECTRICAL
Temperature <2% O2 equivalent
Compensation (0°C to 40°C) Ø10,0
10 kΩ minimum
External Load Resistor (See Important Note) Ø29,3
UK Data Socket AMP
Connector
(P/N 5520257-2)
M 16 x 1P
MECHANICAL
Housing Material White ABS
Weight 42 g (nominal)
6,5
Orientation Any
ENVIRONMENTAL
Typical Applications Critical care anesthesia
Operating Temperature
-20°C to +50°C
Range SIDE
Operating Pressure Range 0.5 Bar to 2.0 Bar 36,8
0% to 99% RH non-
Operating Humidity Range
condensing
LIFETIME
12,1
Long-Term Ouput Drift in
< 5% signal loss/year
100% O2
Recommended Storage -10°C to +40°C
Temperature (Short excursions to +50°C allowed)

Expected Operating Life: Ø 20,0

@ 20°C 1.5 x 106 % O2 hours
@ 40°C 0.8 x 106 % O2 hours
Packaging Sealed blister
13 months from date of
despatch BOTTOM
Standard Warranty (This amounts to a variation of
condition 1 of our standard terms
and conditions which otherwise
apply)

*Specifications are based on measurements made

with cylinder gases using a flow rate of 100 mls min-1
and are valid at 20°C, 50% RH and 1013 mBar, using
recommended circuitry. Performance characteristics Important Note: Connection should be made via recommended mating parts only.
outline the performance of sensors supplied within the Soldering to the sensor will damage it and invalidate the warranty.
first 3 months. Output signal can drift
below the lower limit over time. For further information on the external load resistance and connection to the
recommended mating part, please see Operating Principle OP-04 or contact us.
Note 1: Use of a regression coefficient shows a best fit
straight line better than 0.9995 when measured through All performance data is based on measurements made with cylinder gases using
the four data points from testing with 100% N2, 21% O2, a flow rate of 100 mls/min. Conditions at 20°C, 50% RH and 1013 mBar. For sensor
60% O2, and 100% O2. performance data under other conditions, please contact us.

Performance characteristics outline the performance of sensors supplied within the

first 3 months. Output signal can drift below the lower limit over time.

2
Poisoning
Sensors are designed for operation in a wide range of environments and harsh conditions. However, it is
important that exposure to high concentrations of solvent vapours is avoided, both during storage, fitting
into instruments and operation.

When using sensors with printed circuit boards (PCBs), degreasing agents should be used before the
sensor is fitted. Do not glue directly on or near the sensor as the solvent may cause crazing of the plastic.

Intended Use
These sensors are designed to be used to monitor the partial pressure of oxygen in anaesthesia (not
including xenon), critical care, neonatal incubators, and general oxygen monitors.

Stabilisation Time
Allow at least 15 minutes to stabilise in the instrument before calibration or refer to manufacturers
instructions.

Cleaning and Sterilisation

In case of contamination the sensor may be cleaned with distilled water and allowed to dry naturally.
The sensor is not suitable for sterilisation by steam or exposure to chemicals such as ethylene oxide or
hydrogen peroxide.

Calibration Interval
These sensors are designed to have minimal drift over their useful lifetime. For maximum accuracy
however they should be calibrated before each use.

If the Sensor is Dropped

If a sensor is dropped, then it should be placed in quarantine for 24 hours and a follow-up check made by
a 2 point calibration.

Mechanical Installation
When installing the sensor, it must only be screwed in hand-tight and a gas tight seal ensured. Spanners
and similar mechanical aids may not be used, as excessive force may damage the sensor thread.

RFI/EMI Susceptibility
MediceLs contain metal and may be susceptible to RFI or EMI. They are not suitable for use in MRI
environments. For further information please contact us.

Certifications

0123

3
Cross Sensitivity
The table below shows how MOX3 MediceLs respond when tested with the gas mixtures listed in
ISO 80601-2-55.

Test Gas % O2 Error

50% He / 50% O2 < 1%
60% N2O / 40% O2 < 1%
2% Halothane / 40% O2 / 30% N20 / 5% CO2 / Bal N2 < 1.5%
2% Enflurane / 40% O2 / 30% N20 / 5% CO2 / Bal N2 < 1.5%
2% Isoflurane / 40% O2 / 30% N2 0 / 5% CO2 / Bal N2 < 1.5%

MOX Adaptor (15 mm Taper)

MOX3 Sensors are supplied with and adaptor that can be fitted to the sensor thread and used to direct
gas flow to the sensor.

0
Ø 14.67-.1

Ø 10.0
INTERNAL ‘O’ Ring
35.5 +- 0.3
8.8

19 A/F

Ø 20.8

SAFETY NOTE
This sensor is designed to be used in safety-critical applications. To ensure that the sensor and/or instrument in
which it is used, are operating properly, it is a requirement that the function of the device is confirmed by exposure
to target gas (bump check) before each use of the sensor and/or instrument. Failure to carry out such tests may
jeopardise the safety of people and property.

Every effort has been made to ensure the accuracy of this document at the time of printing. In accordance with the company’s policy of
continued product improvement, the manufacturer reserves the right to make product changes without notice. The products are always
subject to a programme of improvement and testing which may result in some changes in the characteristics quoted. As the products
may be used by the client in circumstances beyond the knowledge and control of the manufacturer, we cannot give any warranty as to the
relevance of these particulars to an application. The manufacturer warrants goods of its manufacture as being free of defective materials
and faulty workmanship. The manufacturer’s standard product warranty applies unless agreed to otherwise by the manufacturer in writing;
please refer to your order acknowledgment or consult your local sales office for specific warranty details. If warranted goods are
returned to the manufacturer during the period of coverage, the manufacturer will repair or replace, at its option, without charge those
items it finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those
of merchantability and fitness for a particular purpose. In no event shall the manufacturer be liable for consequential, special, or indirect
damages. Though the manufacturer provides application assistance personally, or through our literature and website, it is up to the
customer to determine the suitability of the product in the application.

MOX3 Datasheet ECN 4794 | Issue 5 | 04/19

© 2019