MSA PrimaX I User manual

Operating Manual
PrimaX
Gas Transmitter
Order No. 10115083/03

MSA AUER GmbH
Thiemannstrasse 1
D-12059 Berlin
Germany
© MSA AUER GmbH. All rights reserved

Declaration of ConformityMSA
PrimaX
GB 3
Declaration of Conformity
The manufacturer or his in the community established authorized representative
MSA AUER GmbH
Thiemannstraße 1
D-12059 Berlin
declares that the productPrimaX I, PrimaX P
based on the EC-Type Examination Certificate: BVS 10 ATEX E009 X
complies with the ATEX directive 94/9/EC, Annex III. Quality Assurance Notification
complying with Annex IV of the ATEX Directive 94/9/EC has been issued by DEKRA
EXAM in Bochum, Notified Body number: 0158.
Standards: EN 60079-0:2009, EN 60079-1:2007, EN 60079-11:2007,
EN 60079-26:2007, EC 60079-31:2009, EN 61241-11:2006
EN 60079-29-1:2007, EN 50104:2010, EN 50271:2010
The product is in conformance with the directive 2004/108/EC, (EMC):
EN 50270:2006 Type 2, EN 61000 - 6 - 3:2007
MSA AUER GmbH
Dr. Axel Schubert
Manager R&D Instruments
& Approvals INT-T
Berlin, January 2014

MSA
Contents
PrimaX
4GB
Contents
1 Safety Regulations ................................................................................................. 6
1.1 Correct Use .................................................................................................. 6
1.2 Liability Information ....................................................................................... 6
1.3 Safety and Precautionary Measures to be Adopted ..................................... 7
1.4 MSA Permanent Instrument Warranty .......................................................... 9
2 Description ........................................................................................................... 10
2.1 Identifying the Unit ...................................................................................... 10
2.2 Overview ..................................................................................................... 10
3 Installation ............................................................................................................ 12
3.1 Mechanical Installation ............................................................................... 13
3.2 Electrical Installation ................................................................................... 15
4 Operation .............................................................................................................. 18
4.1 Startup ........................................................................................................ 19
4.2 Menu Sequence ......................................................................................... 20
4.3 Calibration .................................................................................................. 21
4.4 Maintenance and Info ................................................................................. 24
4.5 Password .................................................................................................... 28
4.6 Changeable Parameters ............................................................................. 28
4.7 Optional HART Module and Relay ............................................................. 29
5 Maintenance ......................................................................................................... 35
5.1 Changing the Sensors ................................................................................ 35
6 Technical Data ...................................................................................................... 37
6.1 Specifications ............................................................................................. 37
6.2 Cable Lengths and Cross-sections ............................................................. 38
6.3 Performance Specifications ........................................................................ 39
6.4 List of Detectable Gases ............................................................................ 39

ContentsMSA
PrimaX
GB 5
6.5 Sensor Response to Interferants ................................................................ 42
6.6 PrimaX P List of Combustible Gases and Vapours
detectable with Catalytic Sensor Part No. 10112716 ................................. 44
7 Approvals ............................................................................................................. 48
7.1 Marking, Certificates and Approvals
According to the Directive 94/9/EC (ATEX) ................................................ 48
7.2 Marking and Certificates according to IECEx ............................................. 52
7.3 Special conditions for the safe use
according to ATEX and SIL applications .................................................... 55
7.4 Safety Relevant Parameters ....................................................................... 58
8 Accessories .......................................................................................................... 60
8.1 Calibration Cap ........................................................................................... 60
8.2 Sensor Gard ............................................................................................... 60
8.3 Remote Calibration ..................................................................................... 61
8.4 Flow Through Adapter ................................................................................ 63
8.5 Duct Mounting Kit ....................................................................................... 64
8.6 Pipe Mounting Kit ....................................................................................... 65
8.7 Sensor Tag ................................................................................................. 66
8.8 Sunshield .................................................................................................... 67
8.9 Universal HART Cable ............................................................................... 67
9 Spare Parts ........................................................................................................... 68
10 Appendix ............................................................................................................... 70
10.1 Output States .............................................................................................. 70
10.2 Calibration Faults ........................................................................................ 71
10.3 Error Codes ................................................................................................ 72
10.4 Timeout ....................................................................................................... 72
10.5 Mechanical Installation ............................................................................... 73
10.6 Wiring Diagrams ......................................................................................... 76

MSA
Safety Regulations
PrimaX
6GB
1 Safety Regulations
1.1 Correct Use
The PrimaX Gas Transmitters are fixed gas transmitters for measuring toxic or
combustible gases and for monitoring oxygen deficiency, excess or inerting. They
are suitable for outdoor and indoor applications without limitations, e.g. offshore in-
dustry, chemical and petrochemical industry, water and sewage industry. The sig-
nal of the transmitter can be used in combination with MSA control units for further
actions in safety or non safety applications, e. g. MSA SUPREMA, Gasgard XL,
9010/9020.
The two versions of the gas transmitter are delivered either in a flameproof or in a
intrinsically safe enclosure. The electrical parts and interfaces have the same basic
functionality.
It is imperative that this operating manual be read and observed when using the
product. In particular, the safety instructions, as well as the information for the use
and operation of the product, must be carefully read and observed. Furthermore,
the national regulations applicable in the user's country must be taken into account
for a safe use.
Alternative use, or use outside this specification will be considered as non-compli-
ance. This also applies especially to unauthorised alterations to the product and to
commissioning work that has not been carried out by MSA or authorised persons.
1.2 Liability Information
MSA accepts no liability in cases where the product has been used inappropriately
or not as intended. The selection and use of the product are the exclusive respon-
sibility of the individual operator.
Product liability claims, warranties also as guarantees made by MSA with respect
totheproductarevoided, ifit isnot used,serviced or maintained inaccordancewith
the instructions in this manual.
Danger!
This product is supporting life and health. Inappropriate use, mainte-
nance or servicing may affect the function of the device and thereby se-
riously compromise the user's life.
Before use the product operability must be verified. The product must
not be used if the function test is unsuccessful, it is damaged, a compe-
tent servicing/maintenance has not been made, genuine MSA spare
parts have not been used.

Safety RegulationsMSA
PrimaX
GB 7
1.3 Safety and Precautionary Measures to be Adopted
- Thedevicedescribedin thismanual mustbe installed, operated andmaintained
in strict accordance with their labels, cautions, instructions, and within the limi-
tations stated.
- The device is designed to detect gases or vapours in air.
- If a device with a combustible sensor is exposed to vibrations, calibration shall
be done in sufficient short intervals until it is verified that the device is not affect-
ed by the vibration stress.
- Do not mount the sensing head in direct sunlight as this could cause overheat-
ing of the sensor.
- The device must be installed with the sensor inlet pointing downwards to avoid
clogging of the gas inlet by particles or liquids.
- Electrochemical sensors are sealed units which contain a corrosive electrolyte.
Should a sensor develop leakage, it must be immediately removed from service
and disposed of properly. Caution must be exercised so that the electrolyte
does not contact skin, clothing or circuitry otherwise personal injury [burns] and/
or equipment damage may result.
- The only absolute method to ensure proper overall operation of the device is to
check it with a known concentration of the gas for which it has been calibrated.
Consequently, calibration checks must be included as part of the routine inspec-
tion of the system.
- As with all devices of these types, high levels of, or long exposure to, certain
compounds in the tested atmosphere could contaminate the sensor. In atmos-
pheres where the device may be exposed to such materials, calibration must be
performed frequently to ensure that the operation is dependable and display in-
dications are accurate.
- The device must not be painted. If painting is done in an area where a device is
located, care must be exercised to ensure that paint is not deposited on the sin-
tered metal flashback arrestor in the gas sensor inlet, if so equipped. Such paint
deposits would interfere with the gas diffusion process.
- Use only genuine MSA replacement parts when performing any maintenance
procedures provided in this manual. Failure to do so may seriously impair instru-
mentperformance.Repairoralterationofthedevice,beyondthe scopeofthese
Attention!
The following safety instructions must be observed implicitly.Onlyin this
waycan the safety andhealth of theindividual operators,and thecorrect
functioning of the instrument, be guaranteed.

MSA
Safety Regulations
PrimaX
8GB
maintenance instructions or by anyone other than an authorised MSA service
personnel, could cause the product to fail to perform as designed.
- The device is designed for applications in hazardous areas under atmospheric
conditions.
- For correct measurements, the combustible gas sensors require an oxygen
concentration greater than 10 Vol%. Oxygen enriched atmospheres, greater
then 21 Vol%, can affect the measurement and the electrical safety of the de-
vice.
- The response time of the device will be increased by significant dust deposits
on the Sensor. Checks for dust deposits must be done at regular intervals.
- Catalytic combustible gas sensors may produce low or zero response to com-
bustible gas after exposure to substances as Silicon, Silane, Silicate, Halide
and compounds containing Fluorine, Chlorine, Iodine or Bromine.
- Catalytic sensor: After exposure of gas above the measuring range, the sensor
has to be immediately calibrated / adjusted, independent of the calibration in-
terval. In the case of an adjustment the sensitivity of the sensor has to be re-
checked again after 24 hours.
- In case of very high flammable concentrations >100%LEL the device is able to
lock all outputs [LOC]. This function shall be used for standalone applications
according to ATEX requirements.
- Catalytic sensor:If the PrimaX isoperated in combination with a control unit and
[LOC] is deactivated on the PrimaX, the control unit has to ensure the latching
after the measuring range was exceeded.
- Catalyticsensor:Before areset ofanover range[LOC]indicationis doneitshall
be verified that the gas concentration is below full scale.
- Toxic gases: If the measuring range is exceeded, sensor life time can be re-
duced or the sensor might need a recovery phase.
- Used sensors have to be disposed of in an environmentally compatible way.
- At signal underrange between -1.25 % and -10 % of the measuring range the
4 - 20 mA output is set to 3,8 mA. At signal underrange of more than -10 % of
the measuring range the 4 - 20 mA output is set to the error state (2 mA). To

Safety RegulationsMSA
PrimaX
GB 9
avoid a delayed alarm activation, a calibration should be done when the output
current is set to 3,8 mA and "LO" is shown on the display persistently.
- The lowest range which is suitable for the alarm thresholds should be selected
for toxic gases.
- To compensate for possible deviations during measurement of flammable gas-
es a calibration factor of 1.05 has to be applied when using the CalGard for re-
mote calibration (see chapter 8.3)
1.4 MSA Permanent Instrument Warranty
Warranty
Seller warrants that this product will be free from mechanical defect or faulty work-
manship for
- Gas Transmitter: eighteen [18] months from date of shipment or one [1] year
from installation, whichever occurs first;
- Oxygen,ToxicorCatalyticCombustible Sensor:eighteen[18]months fromdate
of shipping or one [1] year from installation, whichever occurs first.
This warranty is applicable provided the product is maintained and used in accord-
ance with Seller's instructions and/or recommendations. This warranty does not ap-
ply to expendable or consumable parts, whose normal life expectancy is less than
one [1] year.
The Seller shall be released from all obligations under this warranty in the event re-
pairs or modifications are made by persons other than its own or authorized service
personnel or if the warranty claim results from physical abuse or misuse of the prod-
uct.No agent, employee or representative oftheSellerhasany authorityto bind the
Seller to any affirmation, representation or warranty concerning the goods sold un-
der this contract. Seller makes no warranty concerning components or accessories
not manufactured by the Seller, but will pass onto the Purchaser all warranties of
manufacturers of such components.

MSA
Description
PrimaX
10 GB
2 Description
2.1 Identifying the Unit
Fig. 1 PrimaX Gas Transmitter
PrimaX P
ThePrimaXP isa gastransmitter with analuminiumenclosure.This isa flameproof
version for the detection of combustible or toxic gases or oxygen.
PrimaX I
ThePrimaXI isa gastransmitter witha plasticenclosure. Itis available asa general
purpose version [not intended for hazardous area] or intrinsically safe version. Both
versions are designed for a detection of toxic gases or oxygen.
2.2 Overview
The device is factory-calibrated and delivered ready for installation. Each device is
configured and calibrated for only one specific gas or vapour.
PrimaX P PrimaX I
flameproof version general purpose version, or
intrinsically safe version

DescriptionMSA
PrimaX
GB 11
The enclosures vary depending on the particular version. The electrical parts and
interfaces have the same basic functionality.
The device has:
- a quick and easy pluggable sensor,
- a four digit liquid crystal display [LCD],
- a key pad with a cover
- a detachable backplate for installation on a wall or on a pipe
The device operate with a 4 – 20 mA output signal and an IP 67 ingress protection.
Fig. 2 Exploded View [PrimaX P]
1 Terminal for power connection 6 Sensor
2 Keypad with cover 7 red LED [PrimaX P only]
3 Connector for factory use 8 yellow LED [PrimaX P only]
4 Display 9 green LED [PrimaX P only]
5 bayonet joint with interlock 10 Identification plate
1
2
3
7
8
9
4
6
5
10

MSA
Installation
PrimaX
12 GB
Sensors
The device operates with a 4 – 20 mA output signal.
As an optional feature additional modules are available for these configurations of
PrimaX transmitter:
For more information on the HART module chapter 4.7.
3 Installation
The device should be installed where gas leaks are expected. The installation po-
sition depends on the gas density, either in the upper area of the room under the
ceiling for gases lighter than air or close to the ground for gases heavier than air.
Also consider how air movement may affect the ability of the device to detect gas.
The display on the front of the instrument must always be clearly visible, the view
must not be obstructed.
Description PrimaX P PrimaX I
Detection of toxic gases X X
Detection of oxygen X X
Detection of combustible gases X
Modules PrimaX P PrimaX I
HART module X X
HART + Relays module X -
HART+ Relays module
with galvanically isolated analogue output X-
Before beginning the installation, check that the delivered components
are complete and correct, referring to the shipping documents and the
sticker on the shipment carton.
When preparing the assembly, make sure that the mounting arrange-
ment is correct for the particular device.

InstallationMSA
PrimaX
GB 13
3.1 Mechanical Installation
Preparation
To install the device, first remove the backplate.
Undo Screws
(1) Unscrew the device.
Remove Device
(2) Remove the device from the backplate
by lifting up the lower edge as shown.

MSA
Installation
PrimaX
14 GB
Wall or Pipe Mounting
For pipe mounting a pipe mounting kit is necessary [chapter 8.6].
Install the Backplate
(1) Use the two keyhole slots for attaching
themountingplatetothewall.Use 6mm
diameter screws and suitable plugs.
(2) For a wall installation use the backplate
asa template fordrillingthe holesfor the
two fixing screws, for a pipe installation
use the pipe clip.
(3) Attach the backplate to the wall or the
pipe clip with M6 x 20 screws.
The hitch should point away from the
wall or pipe.
The straight edge of the backplate
should be at the bottom.
Attach the Device to the Backplate
(4) Attach the device to the top of the back-
plate.
(5) Fold down the device, till it is closed to
the backplate.
Fasten Device
(6) Screw the device to the backplate.

InstallationMSA
PrimaX
GB 15
3.2 Electrical Installation
Instructions for Electrical Connection
- Shielded cable for measuring devices is recommended.
- Always observe maximum cable lengths and cross-sections [chapter 6.2].
- Water or impurities can penetrate the instrument through the cable. In hazar-
dous areas, it is recommended to install the cable in a loop just before entry into
the instrument or to slightly bend it to prevent water from entering.
Electrical Connection - PrimaX P
Terminal PrimaX P
Attention!
The device must be installed only in compliance with the applicable
regulations, otherwise the safe operation of the instrument is not
guaranteed.
The power supply is defined as 24 VDC. If the input supply voltage at
the terminal of the transmitter is less than 10 V, the device will shut
down. The 24 V power supply shall fulfill the requirements for a
PELV/SELV of EN 60950.
Operating the PrimaX I version in hazardous areas requires an
intrinsically safe power supply.
Fig. 3 Terminal PrimaX P [3-wire sensor] Fig. 4 Terminal PrimaX P [4-wire sensor]
1 Power supply [+], 24 V DC 1 Power supply [+], 24 V DC
20VDC 20VDC
3 4 – 20 mA [Signal] 3 4 – 20 mA [Signal]
4 empty 4 Isolated ground
1 2 3 4
1 2 3 4

MSA
Installation
PrimaX
16 GB
PrimaX P
(1) Unscrew the interlock between cover and bayonet joint of sensor.
(2) Unscrew the aluminium lid of the enclosure.
(3) Unplug the 4-way terminal block.
It is located behind a plastic cover above the display.
(4) Unscrew clamping nut at the cable gland.
(5) Put clamping nut on the cable
(6) Insert cable for connection into the device.
(7) Connect cable to terminal.
Use a shielded cable with 3 wires for the 3-wire sensor
Use a shielded cable with 4 wires for the 4-wire sensor
(8) Tighten cable gland clamping nut, check that cable cannot move within the ca-
ble gland.
(9) Replace enclosure lid and secure the interlock.
Fig. 5 3-wire/4-wire connection - PrimaX P
Power supply [+] 24 V DC
0 V DC [-]
4–20mA[Signal]
isolated ground

InstallationMSA
PrimaX
GB 17
Electrical Connection - PrimaX I
Terminal PrimaX I
Fig. 6 Terminal PrimaX I
PrimaX I
(1) Remove plastic cover.
It is bolted with 4 screws.
(2) Remove the 2-way terminal block.
It is located behind a plastic cover above the display.
(3) Unscrew clamping nut at the cable gland.
(4) Put clamping nut on the cable
(5) Insert cable for connection into the device.
(6) Connect cable to terminal.
Use a 2-wire shielded cable.
(7) Tighten cable gland clamping nut, check that cable cannot move within the ca-
ble gland.
(8) Replace plastic cover, tighten the screws and secure the interlock.
1 Power supply [+], 24 V DC
2 4 – 20 mA [Signal]
Fig. 7 2-wire connection - PrimaX I
Power supply [+]
4–20mA[Signal]
1 2

MSA
Operation
PrimaX
18 GB
4 Operation
Fig. 8 Display overview
The device is factory-calibrated and delivered ready for installation.
Each device is configured and calibrated for only one specific gas or va-
pour.
1 Measuring value/Menu//Text dimensions 5 Calibration
2 Units 6 Alive signal [flashing]
3 LOC, alarm indication [optional] 7 Maintenance
4 Signal for an active communication
12
65
3
7
4

OperationMSA
PrimaX
GB 19
4.1 Startup
During startup a self-test is performed and the output signal is set to the service cur-
rent [default 3.0 mA]. The following information is displayed:
Display Test
The display shows all segments.
Note: The PrimaX P also shows all LEDs and afterwards the yellow LED is flash-
ing during the startup procedure.
Software Version
The display shows the firmware version.
Sensor
The display shows the configured type of sensor operating with each individual de-
tector, e.g.: COMB [combustible], CO, H2S.
Range
The display shows the measuring range predefined for the gas detector, e.g.:
100% LEL.
Countdown
The countdown for sensor stability is displayed.
Normal Operation
After countdown, the gas concentration [ppm, Vol%, % LEL, % UEG, mg/m3] is
displayed. The heart symbol flashes to indicate alive status.

MSA
Operation
PrimaX
20 GB
4.2 Menu Sequence
Fig. 9 Keypad - operating buttons
To navigate in the menu sequence, 4 buttons are available.
In general:
(1) Press ENTER button to get access to the menu sequence.
(2) Press UP or DOWN button till
the desired menu is displayed.
(3) Press ENTER button to
get access to the menu,
(4) Press ESC button to cancel the process.
The following table lists the menu items. Detailed descriptions can be found in the
chapters 4.3, 4.4 and 4.5.
1 ESC button 3 ENTER button
2 UP button 4 DOWN button
1
4
2
3