Simtronics MultiXplo User manual

Operating Manual
NOSP15759-Rev 10
MultiXplo / MultiTox Detectors
DM-TX6-X (Catalytic)
DM-TT6-K (Catharometer)

MultiXplo / MultiTox Page 2 / 60 NOSP15759-Rev 10
Copyright

March 2020 by Oldham Simtronics S.A.S.
All rights reserved. No reproduction of all or part of this document, in any
form, is permitted without the written consent of Oldham Simtronics S.A.S.
All of the information that is provided in this document is accurate to the best
of our knowledge.
As a result of continuous research and development, the specifications of this
product may be changed without prior notice.
Oldham Simtronics S.A.S.
Rue Orfila
C.S. 20417
F – 62027 ARRAS

MultiXplo / MultiTox Page 3 / 60 NOSP15759-Rev 10
Limitation of Liability
The Company OLDHAM SIMTRONICS A.S., hereinafter referred to as “OLDHAM
SIMTRONICS” throughout this document, shall not be held responsible for any damage to
the equipment or for any physical injury or death resulting in whole or in part from the
inappropriate use or installation of the equipment, non-compliance with any and all
instructions, warnings, standards and/or regulations in force.
No business, person or legal entity may assume responsibility on behalf of OLDHAM
SIMTRONICS, even though they may be involved in the sale of OLDHAM SIMTRONICS
products.
OLDHAM SIMTRONICS shall not be responsible for any direct or indirect damage, or any
direct or indirect consequence, resulting from the sale and use of any of its products
UNLESS SUCH PRODUCTS HAVE BEEN SELECTED BY OLDHAM SIMTRONICS
ACCORDING TO THE APPLICATION.
Ownership clauses
The drawings, specifications, and information herein contain confidential information that
is the property of OLDHAM SIMTRONICS.
This information shall not, either in whole or in part, by physical, electronic, or any other
means whatsoever, be reproduced, copied, divulged, translated, or used as the basis for
the manufacture or sale of OLDHAM SIMTRONICS equipment, or for any other reason
without the prior consent of OLDHAM SIMTRONICS.
Warning
This is not a contractual document. In the best interest of its customers and with the aim
of improving performance, OLDHAM SIMTRONICS reserves the right to alter the technical
features of its equipment without prior notice.
READ THESE INSTRUCTIONS CAREFULLY BEFORE THE FIRST USAGE: these
instructions should be read by all persons who have or will have responsibility for the use,
maintenance, or repair of the instrument.
This instrument shall only be deemed to be in conformance with the published
performance if used, maintained, and repaired in accordance with the instructions of
OLDHAM SIMTRONICS by OLDHAM SIMTRONICS personnel or by personnel authorized by
OLDHAM SIMTRONICS.
This device has been designed to use in industrial environment, this product may cause
radio interference in which case the user may be required to take adequate measures.
Important Information
The modification of the material and the use of parts of an unspecified origin shall entail
the cancellation of any form of warranty.
The use of the unit has been projected for the applications specified in the technical
characteristics. Exceeding the indicated values cannot in any case be authorized.
OLDHAM SIMTRONICS recommends regular testing of fixed gas detection installations
(read Chapter 7.2).
Before any intervention on detector, please read the EN 60079-29-2 standard.

MultiXplo / MultiTox Page 4 / 60 NOSP15759-Rev 10
Warranty
Under normal conditions of use and on return to the factory, MultiTox detectors carry a 1-
year warranty excluding accessories such as tilt mount, weather protection, etc.
Destruction of the equipment
European Union (and EEA) only. This symbol indicates that, in conformity with
directive DEEE (2002/96/CE) and according to local regulations, this product may not
be discarded together with household waste.
It must be disposed of in a collection area that is set aside for this purpose, for example at a
site that is officially designated for the recycling of electrical and electronic equipment (EEE)
or a point of exchange for authorized products in the event of the acquisition of a new product
of the same type as before.

MultiXplo / MultiTox Page 5 / 60 NOSP15759-Rev 10
1. ProdUct description ............................................................................................................ 7
1.1. Application Fields ........................................................................................................ 7
1.2. DM-TX6-X..................................................................................................................... 7
1.3. DM-TT6-K .................................................................................................................... 8
1.4. Technical specifications .............................................................................................. 8
1.5. Detection Cartridge ................................................................................................... 10
1.6. Communication interfaces ........................................................................................ 10
1.7. Product Code ............................................................................................................. 12
2. Technical features ............................................................................................................ 15
3. Performances ................................................................................................................... 17
4. Installation ........................................................................................................................ 19
4.1. Positioning ................................................................................................................. 19
4.2. Assembly ................................................................................................................... 20
4.3. Electric connection .................................................................................................... 22
4.4. Detection cartridge.................................................................................................... 30
5. Commissioning ................................................................................................................. 31
5.1. Visual inspection........................................................................................................ 31
5.2. Power-up ................................................................................................................... 31
5.3. Operational tests ....................................................................................................... 31
6. Operation........................................................................................................................... 33
6.1. Environmental conditions.......................................................................................... 33
6.2. Inhibition .................................................................................................................... 33
6.3. Signal current loop .................................................................................................... 34
6.4. Alarm indication (LED)............................................................................................... 34
6.5. Wireless communication tool TLU600....................................................................... 34
6.6. Information menu [INFO]........................................................................................... 37
6.7. Adjustment menu [ADJT]........................................................................................... 38
6.8. The maintenance menu [MAIN]................................................................................. 43
6.9. Ambiguity function in combustible gas detector smart sensors .............................. 44
7. Maintenance...................................................................................................................... 45
7.1. Power off / opening of housing.................................................................................. 45
7.2. Periodic maintenance................................................................................................ 45
7.3. List of main faults...................................................................................................... 46
7.4. Replacing the cartridge ............................................................................................. 47
7.5. Replacing the complete detector .............................................................................. 47
8. ATEX / IECEx Marking ....................................................................................................... 49
9. Accessories and spare parts............................................................................................. 50
9.1. Spare parts ................................................................................................................ 50
9.2. Accessories................................................................................................................ 51

MultiXplo / MultiTox Page 6 / 60 NOSP15759-Rev 10
9.3. Gas table codes & range table codes ........................................................................ 53
10. Conformity certificate.................................................................................................... 56

MultiXplo / MultiTox Page 7 / 60 NOSP15759-Rev 10
1. PRODUCT DESCRIPTION
The DM-TX6-X is designed to monitor explosions hazard induced by the presence of
flammable gases or vapours (hydrogen, hydrocarbons, alcohol, etc…).
The DM-TT6-K is designed to monitor the gas concentration in %vol. induced by the presence
of some special gases or vapours (hydrogen, helium, carbon dioxide, etc…).
The detector can be connected directly to a large range of traditional controllers or
Programmable Logic Controllers (PLC).
The DM-TX6-X and the DM-TT6-K may be fully configured using the portable communication
terminal (TLU600) in ATEX areas, providing flexibility to the user.
These detectors can be configured also using the Hart portable terminal TLH700 (in option).
The MultiXplo and MultiTox are also available for use in an addressable network system with
distributed intelligence, SYNTEL. For more information, please refer to the Syntel module
interface operating manual.
1.1. Application Fields
The DM-TX6-X and the DM-TT6-K are suitable for indoor and outdoor uses and offer a fast
response time. Typical applications include:
•Storage and use of combustible/flammable gases and
vapours(DM-TX6-X),
•Monitoring of processes with flammable products
•Hydrogen detection in inert atmosphere and in high
concentration (DM-TT6-K),
•Chemical and petrochemical plants
•Pharmaceutical industry
•LNG/LPG
•Oil and gas facilities
1.2. DM-TX6-X
The detectors are calibrated on 100% LEL (Lower Explosive Limit) of a particular gas or
vapour.
The DM-TX6-X is a MultiXplo detector based on a transducer with thermo-catalytic oxidation,
which requires oxygen to function properly.
In the event of a long period without oxygen, the measurement will no longer be
representative of the concentration of gases or vapours.
The characteristics of the device can also be altered by the presence of certain catalyst
poisons such as silicone fumes, vapours of organometallic compounds and, to some extent
by halogenated compounds.

MultiXplo / MultiTox Page 8 / 60 NOSP15759-Rev 10
1.3. DM-TT6-K
The DM-TT6-K is a MultiTox detector, based on catharometric transducer. Its measurement
range is usually expressed in terms of %vol. relative to a particular gas (for example 5 %vol.
H2, 5 %vol. He...).
The DM-TT6-K measurement principle is based on the heat exchange between a heated
filament and a "cold" separation. The effectiveness of the exchange between those two
elements depends, in particular, of the thermal conductivity value of the mixture which
separate them.
This measurement principle is very stable, and able to operate with high gas concentrations.
In this configuration, the presence of oxygen is not essential, and catalytic poisoning is not an
issue.
1.4. Technical specifications
Each detector is constructed as follows:
•A wall-mounted support secured by two screws, allows assembly of a cable gland
(M20) (optional) and up to three plugs.
•An explosion-proof housing (epoxy coated aluminium or 316 SS) containing:
•A set of tropicalized electronic cards
•An infrared communication head, located on the detector’s housing. It
allows communication with the remote control (TLU600).
•A colour coded cartridge. Yellow for Combustible Gas Detector with thermo-catalytic
cells (DM-TX6-X) and brown for catharometers (DM-TT6-K). The cartridge is located
in the lower part of the detector, and it is connected to the detector body by an open
ring leaving the label visible.

MultiXplo / MultiTox Page 9 / 60 NOSP15759-Rev 10
Figure 1 : Layout Drawing
(Congestion see Figure 2 )

MultiXplo / MultiTox Page 10 / 60 NOSP15759-Rev 10
1.5. Detection Cartridge
Detection Cartridges are explosion proof designed.
They are common to all Oldham Simtronics MultiXplo and MultiTox-K products in order to
reduce the number of spare parts.
•DM-RX6-X and DM-RT6-K: Network versions for Syntel loop,
•DM-TX6-X and DM-TT6-K: « Telecapteur » versions,
For combustible gas detector’s cartridges, if the difference between the storage temperature
and the operating temperature does not exceed 20°C, the nominal characteristics are
obtained after a few minutes. Otherwise, wait for the balancing thermal unit, about half an
hour.
Catharometer cartridges (cartridges K) need to be in thermal balance with their environment
to provide nominal performance. Thus, when the cartridges have been unpowered more than
half-an-hour, a warm-up time is required when power is restored. The duration of warm-up
is usually range from ½ hour to 4 hours, depending on the temperature difference between
the cartridge and the ambient temperature.
The cartridge temperature information is available on the TLU.
The cartridge must not be unplugged when the detector is powered.
1.6. Communication interfaces
1.6.1. Wireless Configuration Tool
Information and status of the detector are available via the wireless configuration tool
TLU600.
Configuration and tests are performed using this wireless configuration tool (IrDA protocol).
This tool is common for all Oldham Simtronics MultiFlame, MultiXplo
and MultiTox products.
The TLU600 provides access to devices, which would otherwise
require major logistic operations for maintenance or for
configuration (calibration …).
For more details, please refer to the wireless configuration tool
operating manual.

MultiXplo / MultiTox Page 11 / 60 NOSP15759-Rev 10
1.6.2. HART communication
The HART communication authorizes an addressing of
devices, allowing the communication in read/write mode.
It consists in getting connection on the current loop on which
the numerical data are superimposed.
Most of the HART terminal can read these information and
send commands
The use of a DD (Device Descriptor) facilitates the interface
Man-Device. It can be uploaded on our website.
The HART output is an option. It is available only on the devices equipped with an
electronic type C, in HART configuration (H):DGi-**7-****-**H-**-***-*-C-*
OLDHAM SIMTRONICS devices under HART protocol enable the use
of all the functions available with the TLU600 via the HART terminal.
See the document D1401002 for the using of Hart terminal TLH700 (the
Detector Device Descriptor must be downloaded).

MultiXplo / MultiTox Page 12 / 60 NOSP15759-Rev 10
1.7. Product Code
Product codes are created from functional codes: DM-T*6-****-***-**-***-*-*-*
Detector type
T
X
6
30
DG
-X
X
H
-X
0
-00J
-0
-C
-0
C**
Compact Sensor
T**
Télécaptor
R**
Network version
S**
Replacement cell
X**
Accessories
Families
*T*
Toxic
*V*
Flame
*X*
Flammable gas
*0*
None
Version
**6
BT606 housing
**7
BT10 housing
Gas type
**
Refer to gas matrix
Measurement range
**
Refer to gas matrix
Type
XV
UVIR2
XT
IR3
XW
UV
Detection range
A0
Standard range
B0
Long range
Input Type
0**
Not used or flame
DGi-TT7-E/O & DMi-TT6-E/O
E**
Electrochemical
DG-TT7-S / DM-TT6-S
S**
Semi-conductor
K**
Catharometer
X**
Catalytic
M**
MECH
R**
TOR input
C**
Current input 0/22 mA
I**
Infrared
W**
½ Wheatstone bridge
Variant
*A*
Aluminium
*X*
SS316
Output Interface
**M
1-2 mA protocol
**A
0-22mA protocol (fault signalling in 0-4mA range)
**E
4-20 mA protocol (Common fault signal 2 mA)
**H
4 – 20 mA / 0-22 mA configurable & HART protocol
**C
4 – 20 mA / 0-22 mA configurable
**W
Wheatstone
**L
LON
**X
4 – 24 mA for compact explosimeter (magnet)

MultiXplo / MultiTox Page 13 / 60 NOSP15759-Rev 10
T
X
6
30
DG
-X
X
H
-X
0
-00J
-0
-C
-0
Cartridges
0*
No cartridge or not specified or flame
DGi-TT7-O / Dmi-TT6-O
M*
Electrochemical type M
G*
Electrochemical type G
Dgi-TT7-E / Dmi-TT6-E / DGi-TT7-O / Dmi-TT6-O
Y*
Electrochemical type Y
N*
Electrochemical type N
DG-TT7-X / DM-TT6-X
X*
Catalytic
DG-TT7-S / DM-TT6-S
S*
Semi-conductor (general designation for semiconductor type G)
F*
Semi-conductor type 30 (previously SF) since 2015
C*
Semi-conductor type 31 since 2015
DG-TT7-K / DM-TT6-K
K*
Catharometer
Half Wheatstone bridge probes
E*
EX05, EX09 (external)
L*
SX202-06
T*
SX202-10
U*
SX202-14
V*
SX202-17
H*
MTHX-S
J*
MTHX ( / , E, N, NE)
W*
SD122
DG-TT7-I / DM-TT6-I
D*
Infrared type D
P*
Infrared type P
Semicond.Sensor type & special configurations
*0
Not specified or standard
DG-TT7-S / DM-TT6-S
*A
20
*B
23
*C
24
*D
25
*E
27
*F
30 (become obsolete to release *R association)
Options
*K
SD122 (EK)
*M
Special version MarED (TX6 and TV6 in type A only)
*NSpecial version with ALRM LED not memorized (not in
compliance with EN 54-10) (flame version only)
*R
With relay board for HW type D (gas)
*T
MTHX-S (ET)
*X
SX202 (EX)
Customized versions
*1
Customized EPR (special follow up, SP4M20)
(DM and DMi only)
*2
Configuration
000
Standard
**A
Absolutely no grease
**B
Special version MarED (old code)
(TX6 and TV6 in type A only)
**C
Not EN 54-10 compliant version (not latched
ALRM LED) (type A only)
**D
IRDA cap instead of display
**E
0V not connected to housing ground on Tox
type C
**F
TCM02 instead of IRDA cap
**G Hydrocentrifugon paint (nuclear applications)
**H
Special paint : light grey (10A03 according to
« British standards 4800/5252 »)
**J
Special paint : red (RAL 3001)
**K
Machining of additional cable gland input
*L*
Paint thickness > 200 µm(ATEX versionIIB)

MultiXplo / MultiTox Page 14 / 60 NOSP15759-Rev 10
Language
0
Fr / GB
F
French
E
English
P
Portuguese
C
Chinese
Hardware version
A
Type 63
B
Type 65
C
Type 67 (HART)
D
Type 69 (magnet)
Software version
0
Standard

MultiXplo / MultiTox Page 15 / 60 NOSP15759-Rev 10
2. TECHNICAL FEATURES
GENERAL
Type Gas detector
DM-TX6-X MultiXplo (catalytic gas detector)
DM-TT6-K MultiTox (catharometer gas detector)
DM-RX6 or DM-RT6 Network detector
Calibration Factory set, recommended test every 6 months
OUTPUT SIGNALS
4-20mA loop signal Type active (source) maximum load impedance 700Ω
« 4-20mA » format 4-20mA with one fault level
- 0% full scale 4 mA
- 100% full scale 20 mA
- 105% full scale 20.8 mA
- Ambiguity function 21.7 mA (DM-TX6-X)
- Fault or inhibition 2 mA
« 0-22mA » format 4-20mA with several fault levels, for PLC and some recent
control units
- 0% full scale 4 mA
- 100% full scale 20 mA
- >105% full scale 20.8 mA
- Ambiguity function 21.7mA (DM-TX6-X)
- Inhibition 3.4 mA
- Fault measure 2.6 mA
- Device fault (HW/SW) 2.0 mA
Output relays 2 x configurable relays max 1A / 30V AC/DC
ELECTRICAL
Power supply 24VDC, (18 – 28 V DC versions DM-T#6)
(18 – 30 V DC versions DM-R#6)
Consumption 1,5 W typical, 5 W maximum 1
2.2 W typical, 5W maximum for a network detector
Wiring 0,5mm² (20AWG)-1,5mm² (16AWG).
MTBF 164 000h (Version DM-T#6) out of the sensing element)
1Typical power: voltage 24 Vdc, current 4 mA, 1 relay activated
Maximum power: voltage 30 Vdc, current 22 mA, 2 relays activated

MultiXplo / MultiTox Page 16 / 60 NOSP15759-Rev 10
ENVIRONNEMENT
Storage temperature 5°C to +30°C (2 years in « clean » atmosphere)
Temperature range -20°C to +60°C
Pressure 1013 Hpa ± 10%
Humidity 95% RH (non-condensable)
Protection IP66
RFI/EMI (DM-TX6-X) EN 50270
IEC 60092-504, IEC 60533 and EN60945 (version config 00B)
Warm-up time (DM-TX6-X) < 100 sec
Stabilisation time (DM-TX6-X) < 190 sec
PERFORMANCE (DM-TX6-X)
European EN 60079-29-1
EXPLOSION PROOF HOUSING
Material stainless steel 316 L or epoxy coated aluminium
Weight 2.3kg (5.1 Lbs) (Aluminium)
4 kg (14.3 Lbs.) (Stainless steel)
ATEX/IECEx Please refer to § 8
Dimensions
Figure 2: Outline drawing

MultiXplo / MultiTox Page 17 / 60 NOSP15759-Rev 10
3. PERFORMANCES
Expected life time in standard conditions:
•>5 years for DM-TX6-X
•>10 years for DM-TT6-K
This lifetime can be reduced in case of exposure to dusty environments.
For catalytic version, some compounds are known to poison sensors. These
include, organometallic, silicone and some halogenated compounds
PERFORMANCES
DM-TX6-X
DM-TT6-K
CH
4
H
2
C
4
H
10
H
2
CO
2
He
Ranges
100 %
L.E.L.
(5.0 %vol)
100 % L.E.L.
(4.0 %vol)
100 % L.E.L.
(1.86 %vol)
5%vol
20%vol
100%vol
20%vol
5% vol
20% vol
100% vol
Relative sensitivity
1.70

1.70

1.00

τ(0-90%) (sec)

< 15
< 10
< 20
< 10
< 30
< 10
Zero point stability < 3 < 3 < 3 < 3 < 3 < 3
Sensitivity drift

< 3
< 3
< 3
< 3
< 3
< 3
T° range (°C)

-20 / +65
-20 / +65
-20 / +65
-20 / +65
-20 / +65
-20 / +65
Temperature Zero drift

< 2
< 2
< 2
< 3
< 5
< 3
Temperature sensitivity
drift
< 3
< 3
< 3
< 3
< 5
< 3
Linearity

< 3
< 1
< 3
< 2
< 2
< 2
Repeatability

< 1
< 1
< 1
< 1
< 1
< 1
Service life (years)

>5
>5
>5
10
10
10
Relative humidity
(% RH)
0 – 95 % without condensation
15 - 95 % without condensation
Pressure range
Pa±10%
Cross sensitivity
All inflammable compounds

All gases with either very high or very low
thermal conductivity
Poisons
Silicon compounds, certain halogen
compounds, and some organometallic
compounds.
None
Effect of O
2
–enriched
or
depleted atmospheres
15 % O
2
min.
10 % O
2
min.
15 % O
2
min.
None
Warm-up or biasing time

90 secs
120 secs

MultiXplo / MultiTox Page 18 / 60 NOSP15759-Rev 10
Measured at 50 % LEL of the considered gas
In % full scale
On the range: -10°C to +40°C.
(In years) Expected values based on “typical” site operating conditions without poison or
corrosive compounds.
Lifetime can significantly vary (better or worse) depending on real site conditions.
Measure is available but full performances may require longer time. (See Chapter 2).
As soon as a gas or vapour is flammable, it is may be sensed by the combustible gas
detector.
Sensitivity (regarding LEL range) and the response time depend on the compound. Basically,
as the molecule size increase, the response time increase and the sensitivity decrease.
Table below gives some examples of cross sensitivity:
Detector CH4H2C4H10
Injected gas
CH
4
H
2
C
4
H
10
CH
4
H
2
C
4
H
10
CH
4
H
2
C
4
H
10
Cross sensitivity*
1
0.95
1.7
1.06
1
1.7
0.57
0.54
1
τ
(0-90%) (sec)
<15
<10
<20
<15
<10
<20
<15
<10
<20
If CH4 (50% LEL) is injected on a H2 detector, the concentration displayed will be 47.2%
(50/1.06)*
For external probe versions, temperature range is limited to -20 / +60 °C
Under conditions of natural diffusion and available on any of the outputs of the device
(HART, 4-20mA, ...).

MultiXplo / MultiTox Page 19 / 60 NOSP15759-Rev 10
4. INSTALLATION
Detectors described in this manual are safety instruments intended to be installed in
explosive atmospheres and have been designed in compliance with standards EN60079-0
and EN60079-1, EN 60079-29-1, CEI 60079-0 and CEI 60079-1.
Intervention in some sites may be subject to restrictions that we invite you to
follow for your own safety and those of others.
4.1. Positioning
The detector must be positioned as close as possible to sources of potential leakage, taking
into account airflows (e.g. upper and lower ventilation). The height is determined by the
density of the gas to detect.
Generally speaking, a detector will not be placed in front of an air inlet that brings clean air
This height may be adjust to take into account the specific conditions which may interfere on
the risk level (gas density, ambient temperature…)
There are no limit positions of the detector however it is recommended to position
the detector vertically (ie with the cartridge pointing downwards).
Air velocity limits: 6 m/s.

MultiXplo / MultiTox Page 20 / 60 NOSP15759-Rev 10
4.2. Assembly
Use two 6 mm diameter screws to secure the support.
It is highly recommended to install the support with cable-gland downward in order to avoid
water infiltrations. In case of horizontal position, it is advised to make one or two loops with
the cable at the entry of the cable-gland.
When mounting the cable gland (optional), if no tightening torque is specified by the
manufacturer, consider than a tightening torque of 20N.m +/-10% is the most suitable.
On stainless steel housings, plugs are sealed with Loctite. If the plugs are moved or
removed, it must be sealed again, using Loctite or equivalent.
On aluminium housings, plugs are equipped with seals.
Figure 3: Drilling dimensions for support fixing.
4.2.1. Detector’s assembly
Check the presence of the O-ring on the explosion proof seal, make sure that it is correctly
greased and has no visible damage.
Plug the connectors to the base, as described in paragraph “Electric connection”.
Fit the main housing on the base, placing the excess of cable in the base.
Make sure to correctly tighten the 2 fixing screws once the correct position has
been obtained.
Figure 4 : Housing orientation