M&C TechGroup PMA 100-L Datasheet

PMA 100-L

Embracing Challenge

Oxygen Analyser Series PMA®

Version PMA 100-L
Microprocessor based,
19”-rack unit or table version

Special Features

Safe in operation

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High accuracy and reliability

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Physical measuring principle, linear

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measuring ranges

Fast response time

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Transducer unit temperature controlled

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at +55 °C

Solid 19" metal housing

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Large LCD- indicator with background

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lighting

Selectable time constant for noise

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damping if needed for unstable process
conditions

4 free selectable O2 measuring ranges,

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incl. zero suppression, lowest span 1%

Manual, automatic or remote range

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control

User friendly menu control correspond-

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ing to NAMUR recommendations

Isolated output signal 0/4-20mA

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4 congurable MIN. or MAX. oxygen

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level alarms

4 free congurable isolated binary

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inputs, for example: alarm conrmation,
measuring range control, autocal. start

Analogue signal memory during adjust-

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ing and calibration

Application

Due to the extremely fast response time of the
patented M&C magneto-dynamic measuring
cell with no stagnant volume as well as the
negligible cross sensitivity from other sample
gas components, the M&C oxygen-analyser
PMA 100-L has a wide variety of applications.
The analyser is a suitable and reliable instru­ment for monitoring oxygen concentrations
in various gas analytical process control appli­cations including flue gas measurements,
inert gas installations, fermentation processes
and laboratory process control installations.

Description

The M&C oxygen analyser PMA 100-L is a
temperature controlled instrument which has
been designed for continuous measurements
of oxygen concentrations in particle-free and
dry sample gas. The PMA 100-L is a reliable
and easy-to-operate instrument. It is built
into a housing for 19 inch rack mounting /
table version.

The transducer unit maintains a constant
operating temperature of 55 °C.

The programmable measuring ranges are dis­played on the LCD display. Sample gas con­nections as well as connectors for incoming
power supply and all output / input signals
are located at the rear side of the analyser. The
sample gas enters the analyser via an external
protective fine-filter. The required flow rate
can be adjusted at the flow meter with needle
valve, mounted on the front panel upstream
the M&C measuring cell and the flow cham­ber with flow alarm sensor. The internal tub­ing is made of PTFE and PVDF.

Measuring principle of M&C ox­ygen analyser

The PMA 100-L utilises the paramagnetic
principle of operation to measure oxygen
concentration. The analyser measures the
paramagnetic susceptibility of the oxygen
in the sample gas by means of the M&C
magneto-dynamic measuring cell. The physi­cal propertys which distinguishes oxygen
from other gases is its paramagnetism. It is
significantly higher comparing to other com­mon gases. This operation principle is one of
the most accurate and reliable procedures to
determine the oxygen concentration in a gas
mixture from 0 to 100 Vol.%.

The robust M&C cross-flow cell has no
stagnant volume. Advantages are the fast
response time, the flow rate up to 60 l/hr, the
small volume of 2 ml, the extremely low drift,
the absolute linearity and the negligible cross
sensitivity against other sample gas compo­nents. With a proper sample conditioning
and pressure, the M&C cell will never need
replacing.

Manual / automatic calibration

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3 code levels, access to 2 code levels

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only with release code

Flow alarm monitoring

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4 free congurable potential free relay

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contact outputs, for example: oxygen
level alarm

Technical specications and illustrations are without
obligation, subject to modications.10.99/01.07

M&C TechGroup Germany GmbH • Rehhecke 79 • 40885 Ratingen • Germany
[e-mail] • www.mc-techgroup.com • Fon [phone] • Fax [phone]

13.5

Gas flow diagram PMA 100-L

1. External fine filter

2. Flowmeter with needle valve

3. Oxygen measuring cell PMA

4. Flow alarm sensor

Dimensions

1 2

3

4

FLA

102

177 (4HE)

Dimensions in mm

1013 mbar

20,93 Vol% O

Select

O-Analyser

2

PMA 100

Enter

2

Front view

483 (84TE)

465

Alarm

MeasCal

440

Side view

341

50

10

7

13.5

M&C TechGroup Germany GmbH • Rehhecke 79 • 40885 Ratingen • Germany
[e-mail] • www.mc-techgroup.com • Fon [phone] • Fax [phone]

Technical specications and illustrations are without
obligation, subject to modications. 10.99/01.07

Technical Data

Version PMA 100-L microprocessor based oxygen analyser in 19"-housing

Part No. 03A3100 : PMA 100-L power supply 230V 50Hz, 4-20mA; 03A3100a = 115V 60Hz

Measuring ranges 4 linear measuring ranges free selectable, lowest span 1%,

basis selection* 0-1, 0-10, 0-25 and 0-100 vol. O2.
manual, automatic or remote range control and range indication is possible

Indication two line 16-sign LCD display, resolution 0,01vol.%O2, continuous O2 indication and call off

Text illustration optional in
English, French or German

Output signals selection: isolated 0-20, 2-20, 4-20*, 4-20,5mA for the selected range, max. load 500Ω.i

Relay outputs free configurable 4 potential free relay contacts NO, contact rating max. 48VDC, 500mA, 15W

Binary outputs 24VDC, max. 400mA

Binary inputs free configurable potential free, 4x 12-24VDC, max. 20mA or internal supply voltage 12 VDC

Flow alarm thermo-conductive sensor, mounted downstream O2-measuring cell

Status alarm for min. flow alarm, O2-transducer temperature < 50 °C, central processing unit failurer: LED indication and potenti-

Alarm contact for exceed/remain measuring range, truncate calibration, external alarm, alternatively oxygen level alarms: LED

Response time for 90% FSD < 3 seconds at 60 Nl/hr air

Accuracy after calibration deviation ± 1% of 2-100% span, ± 2% of 1% span

Reproducibility deviation < 1% of span

Influence of ambient temperature no influence up to 50 °C

Influence of barometric- or
process pressure

Influence of sample gas flow variation in gas flow between 0-60 Nl/hr air will cause a difference of < 0,1 vol.% O

Sample gas inlet pressure 0,01 up to 0,6 bar g, (PMA 100-L requires positive pressure for adequate flow rate, no pump inside)

Sample gas outlet pressure recommendation: discharge freely into atmosphere; however max. 0,6 to 1,6 bar abs.

Flow rate of sample gas 25-60 Nl/hr air

Temperature of sample gas -10 °C up to +50 °C dry gas

O2-transducer temperature fixed at +55 °C

Ambient temperature -10 °C up to +50 °C

Storage temperature -20 °C up to +60 °C, relative humidity 0-90% RH

Power supply internal power unit for 230VAC standard or 115VAC available (a) +/- 10%, 40-60Hz, 35VA

Electrical connections mains supply: 3-pole chassis plug with 2 m cable; signals: 4x Sub-D plug

Materials in contact with sample gas Platinum, Epoxy resin, glass, FPM, Stainless Steel 316Ti, PTFE, PVDF

Sample gas connection 1/8" NPT internal thread*, option with tube connector DN 4/6 /PVDF available,

Protection / electrical standard IP 40 EN 60529 / EN 61010

Housing / front colour 19 inch rack mounting with front handles / grey RAL 7032

Dimension / weight height 4U, width 84HP, depth 350 mm + approx. 60 mm installation space / approx. 11 kg

*standard

O2-transducer temperature, mA-signal, measuring range, time, date, failure-/alarm information

al free contact output, NO, max. 48VDC, 500mA, 15W and mA-output indication - example 22mA

indication and potential free contact output, NO, max. 48VDC, 500mA, 15W

no influence within the range of 0,6 up to 1,6bar abs. with integrated pressure compensation

2

Part No. 05V1045

W A R N I N G ! I M P O R T A N T !

An external fine filter must always be used at the gas inlet of the analyser. Depending
on the composition of the sample gas, it may be necessary to use a sample conditio­ning system. Without precautions, the analyser is only suitable for measuring of non­hazardous gases or gasmixtures in non-hazardous areas.

Technical specications and illustrations are without
obligation, subject to modications. 10.99/01.07

M&C TechGroup Germany GmbH • Rehhecke 79 • 40885 Ratingen • Germany
[e-mail] • www.mc-techgroup.com • Fon [phone] • Fax [phone]

13.5