M&C SP Series User manual

Gas Sample Probe Series SP®
SP3200V /.../HEX5-x.08,
SP3200 /.../RS/HEX5-x.08
II 3 GD
Instruction Manual
Version 1.00.04

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Dear customer,
Thank you for buying our product. In this manual you will find all necessary information about this
M&C product. The information in the manual is fast and easy to find, so you can start using your M&C
product right after you have read the manual.
If you have any question regarding the product or the application, please don’t hesitate to contact
M&C or your M&C authorized distributor. You will find all the addresses in the appendix of this instruc-
tion manual.
For additional information about our products, please go to M&C’s website www.mc-techgroup.com.
There you can find the data sheets and manuals of our products in German and English.
This instruction manual does not claim completeness and may be sub-
ject to technical modifications.
© 02/2021
M&C Techgroup
Germany GmbH. Reproduction of this doc-
ument or its content is not allowed without permission from
M&C.
SP
®is a registered trade mark.
Version: 1.00.04

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Contents
1General information ................................................................................................................ 5
2Declaration of conformity ....................................................................................................... 6
3Safety information................................................................................................................... 7
4Information for use in hazardous areas ..................................................................................... 8
5Warranty................................................................................................................................... 8
6Terms and signals used in this manual ...................................................................................... 9
7Application ............................................................................................................................. 11
8Description ............................................................................................................................. 11
8.1 SP3200V and SP3200 (combustible gases and dust): ....................................................... 11
9Options ................................................................................................................................... 14
9.1 Backflush unit type /RS......................................................................................................... 15
9.2 Option /R, /BB and /BBF for test gas feeding or backflushing via check valve R 1/4“, BB 3/8“ or
BBF 3/8“.............................................................................................................................. 15
9.3 Option /C/I test gas feeding via check valve behing the probe filter with pneumatic stop valve
of the probe outlet to the process......................................................................................... 16
9.4 Option 2-Way ball valve ....................................................................................................... 16
9.5 Option spun glass cartridge FW ............................................................................................ 16
9.6 Option /3VA test gas feeding and backflushing VIA 3/2-Way ball valve..................................... 17
9.7 Ball valve drive MS1 ............................................................................................................. 18
9.8 Option /2X second sample gas outlet on the probe ................................................................ 18
9.9 Option /PT100: ADditional PT100 with terminal box for external temperature control............... 18
9.10 Probe heating ..................................................................................................................... 18
10 Technical Data......................................................................................................................... 19
10.1 Maximum surface temperature of the gas sample probe:................................................... 22
11 Receipt of goods and storage .............................................................................................. 23
12 Preparations for installation................................................................................................. 24
13 Installation............................................................................................................................. 25
13.1 Connection of the sample line............................................................................................ 28
14 Electrical connection ............................................................................................................ 30
15 Starting-up............................................................................................................................. 31
16 Maintenance .......................................................................................................................... 31
16.1 Replacement of the filter element ...................................................................................... 32
16.2 Replacement of the preliminary filter.................................................................................. 33
16.3 Cleaning of the probe ........................................................................................................ 33
17 Shutdown............................................................................................................................... 33
18 Proper disposal of the device .............................................................................................. 33
19 Spare parts list ...................................................................................................................... 34
20 Annex..................................................................................................................................... 34
Figures
Figure 1 Probe SP3200(V) without options with preliminary filter V20......................................... 12
Figure 2 Schematic view of the options for backflush and test gas feeding ................................... 14
Figure 3 Function scheme of the option 3/2-way ball valve /3VA .................................................. 17
Figure 4 Schematic drawing of the filter housing cover ................................................................. 26
Figure 5 Removal of the filter housing cover ................................................................................. 27
Figure 6 SP3200 RS, HEX5-1.08.................................................................................................. 35
Figure 7 SP3200 RS, HEX5-2.08.................................................................................................. 36

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Tables
Table 1 Sample tube for use with probe SP3200(V) ....................................................................... 12
Table 2 Possible filters and preliminary filters for use inside the probe ........................................... 13
Table 3 Extension tubes ................................................................................................................. 13
Table 4 Maximum surface temperatures for the use of heating HEX5-x.08..................................... 22
Table 5 Temperature classes for use of heating HEX5-x.08 ........................................................... 22
Table 6 Operating parameters ........................................................................................................ 25

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Head Office
M&C TechGroup Germany GmbH Rehhecke 79 40885 Ratingen Germany
Telephone: 02102 / 935 - 0
Fax: 02102 / 935 - 111
E - mail: [e-mail]
www.mc-techgroup.com
1 GENERAL INFORMATION
The product described in this instruction manual has been built and tested in our production facility.
All M&C products are packed to be shipped safely. To ensure the safe operation and to maintain the
safe condition, all instructions and regulations stated in this instruction manual need to be followed. This
instruction manual includes all information regarding proper transportation, storage, installation, opera-
tion and maintenance of this product by qualified personnel.
Follow all instructions and warnings closely.
Read this manual carefully before commissioning and operating the device. If you have any questions
regarding the product or the application, please don’t hesitate to contact M&C or your M&C authorized
distributor.

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2 DECLARATION OF CONFORMITY
CE - Certification
The product described in this operating manual complies with the following EU directives:
ATEX-Directive
The product described in this manual is produced in accordance with the EU directive for devices and
protection systems for appropriate use in hazardous areas 2014/34/EU appendix II. The respective type
of protection depends on the variant (see table 4).
EMV-Instruction
The requirements of the EU directive 2014/30/EU “Electromagnetic compatibility“ are met.
Low Voltage Directive
The requirement of the EU directive 2014/35/EU “Low Voltage Directive“ are met.
The compliance with this EU directive has been examined according to DIN EN 61010.
RoHS Directive
The requirements of the RoHS2 (‘Restriction of Hazardous Substances 2’) directive 2011/65/EU and its
annexes are met.
Declaration of conformity
The EU Declaration of conformity can be downloaded from the M&C homepage or directly requested
from M&C.

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3 SAFETY INFORMATION
Observe the following fundamental safety precautions when using the device:
•Read these operating instructions carefully before start-up and use of the device! The information and
warnings given in these operating instructions must be observed.
•Work on electrical equipment may only be carried out by qualified personnel in accordance with up-to-
date regulations.
•When erecting high-voltage power installations with rated voltages up to 1000 V, the requirements of VDE
0100 and its associated standards and regulations must be observed.
•For use of the device in hazardous areas, the relevant national and international standards and regulations
must be observed.
•The device must be connected to a mains supply with the same voltage as specified on the rating plate.
•Protection against contact with high electrical voltages:
The device must be safely isolated from the mains supply before it is opened. The same applies to any
connected external control circuits.
•Only use the device within the permissible temperature ranges.
•Check that the location of the device is weatherproof. Do not expose it directly to rain or liquids.
•Installation, maintenance, control and eventual repairs may only be carried out by authorized personnel.
Such work must be carried out in accordance with applicable rules and regulations.

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4INFORMATION FOR USE IN HAZARDOUS AREAS
Please see the identification of the individual variants in table 4.
Detailed information and a copy of the declaration of conformity are contained in the ap-
pendix to these operating instructions. The devices must be installed and used in accord-
ance with the conditions and installation instructions given in the EX-Certificate (see ap-
pendix). Only then, a safe operation in hazardous areas is guaranteed.
Any changes to the standard configuration with unspecified parts or parts not authorised
by M&C as well as repair or service work with unspecified parts leads to an immediate loss
of ex-certification.
- In case of any doubt, please contact directly M&C or your M&C franchise dealer.
5WARRANTY
In the event of a device failure, please contact M&C directly or your M&C franchise dealer.
The device is covered by a one-year warranty starting from the day of delivery according to our normal terms
and conditions of sale and assuming a technically correct use of the unit. Wearing parts are not covered by the
warranty. The warranty includes free repair at our factory or free replacement of the device which must be sent
to us carriage paid and correctly packed.

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6TERMS AND SIGNALS USED IN THIS MANUAL
Danger
The ‘Danger’ warning sign indicates that death, serious injury and/or
significant material damage will be the consequence, if the appropri-
ate precautions should not be taken.
Warning
The ‘Warning’ warning sign indicates that death, serious injury or
damage to property may occur if the relevant precautionary
measures are not observed.
Caution
The ’Caution’ warning sign indicates that slight personal injury can
occur if the appropriate safety precautions are not observed.
Caution
’Caution‘ indicates that damage to property can occur if the appro-
priate safety precautions are not observed.
Attention
‘Attention’ indicates that an unintended result or situation can occur
if the corresponding information is not taken into account.
Note
‘Note’ indicates important information relating to the product or high-
lights parts of the documentation for special attention.
Qualified personnel
‘Qualified personnel’ are experts who are familiar with the installa-
tion, comm
issioning, maintenance, and operation of these types of
products. The following knowledge is at least required for the work:
•Instructed person in EX-protection
•Trained person in the electrotechnical field
•Detailed knowledge of the manual and the applicable safety reg-
ulations
‘Ex‘ indicates important information about the product or about the
corresp
onding parts in the instruction manual, relating to usage in
potentially explosive atmospheres.
High voltages!
Protect yourself and others against damages which might be caused
by high voltages.
Hot surface!
Contact may cause burn! Do not touch!

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Corrosive!
These substances destroy living tissue and equipment upon contact.
Do not breathe vapors; avoid contact with skin and eyes.
Wear protective gloves!
Working with chemicals, sharp objects or extremely high tempera-
tures requires wearing protective gloves.
Wear safety glasses!
Protect your eyes while working with c
hemicals or sharp objects.
Wear safety glasses to avoid getting something in your eyes.
Wear protective clothes!
Working with chemicals, sharp objects or extremely high tempera-
tures requires wearing protective clothes.

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7APPLICATION
The probes of type SP3200V.. and SP3200.. are used for continuous gas sampling in dust-laden processes or
processes with high temperatures (according to table 5, chapter 10) or high gas moisture. The modular con-
struction of the probes and the variety of possible options guarantee optimum adaptation of the probes to
complex process and environmental conditions.
The probes of the type SP3200V.. and SP3200.. are available in both unheated and electrically heated version.
The probes must not be used for sampling of gases or gas mixtures that could be
explosive, even in absence of air or which change safety-relevant material proper-
ties.
The gases or gas mixtures must also not contain any solid particles that could gen-
erate ignitable friction or percussion sparks in combination with the materials of
the probe.
It is not allowed that during operation potential sources of ignition (e.g. smoulder-
ing or burning particles, glowing embers, foreign objects) are brought into the gas
sample probe.
8DESCRIPTION
The probes type SP3200(V).. have been designed for easy use, long life and uncomplicated service and
maintenance.
The internal filter element can be replaced without the need of tools or dismounting of the sample line. After
having removed the internal filter element, both the filter chamber and the sample tube can be cleaned easily.
8.1 SP3200V AND SP3200 (COMBUSTIBLE GASES AND DUST):
The gas sample probes type SP3200V.. and SP3200.. are suitable for the sampling of gases and installation in
hazardous areas of zone 2 or 22 (combustible gases and dust). The only difference between both types is the
sealing material of the filter housing. Version SP3200 has got a filter housing sealing out of graphite for special
types which are heated above 185°C. Version SP3200V has got filter housing seals of Viton for special types
which are heated below or up to 185°C. The probe housing and all options are suitable for use in hazardous
areas of zone 2 or 22 (combustible gases and dust). Please read the identification in table 4.
The probe SP3200(V).. must not be used for gas sampling in zone 0/1.
The filter system of type SP3200(V).. is suitable for dusts of a fineness of up to 2 µm.

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After the filtration, i.e. at the outlet of the gas sample probe, the sample gas is free of dust. This means that in
the absence of explosive sample gas downstream analysers can be used without any special protective
measures.
The following figure shows the basic version of the gas sample probe SP3200(V) with prefilter.
Figure 1 Probe SP3200(V) without options with preliminary filter V20
Warning
SP3200V / SP3200:
In case the gas-dust mixture to be examined must be classified as potentially explo-
sive because it contains combustible gases, only downstream devices (flowmeters,
analysers) with corresponding identification according to directive 2014/34/EU
must be used. Suitable explosion isolation with a flame arrestor must be established.
Any downstream units are not covered by this operating manual.
Warning
For
sampling with probe SP3200(V) from explosion zone 2
sample tubes or pre-
filters and extension tubes can be choosen from tables 1 – 3 below.
For sampling with probe SP3200(V) from explosion zone 22 a pre-filter has to be
choosen from table 2 below. Additional extension tubes from table 3 can be
choosen.
Sample tube
Type
Part
No.
Max. temper-
ature
°C
Material
Tube / Connection
part
Length
mm
Length
„L max“
mm
Connec-
tion
thread
„G“
Tube ø
o/i
[mm]
Connection
ø o
[mm]
SP2000/SS
20S9065
600
Stainl. steel 1.4571
1000
2500
G 3/4“a
25/22
37
SP2000/SS-Vm
20S9067
600
Stainl. steel 1.4571
1000
2500
G 3/4“a
25/06
37
SP2000/HC
20S9090
900
Hastelloy®x
1000
2500
G 3/4“a
25/22
37
SP2000/KA
20S9080
1300
Kanthal®/1.4571
1000
1500
G 3/4“a
27/20
37
SP2000/IN
20S9077
1100
Inconel
1000
2500
G 3/4“a
25/22
37
Table 1 Sample tube for use with probe SP3200(V)

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Type Part No. Material
Dimension
[mm]
Filter porosity[
µ
m]
Filter in the probe:
S-3 SS150
90F0126
1.4404
150 x 30
2
S-2K150
90S0020
Ceramic Aerolith
150 x 30
2
Option spun glass cartridge FW
Filter FW (spun glass) 93S2083
Spun glass, high tempera-
ture resistant
Preliminary filters to be selected:
SP2000ST/V20-T 20S9315
PTFE needled felt (anti-
static)
450 x 40 3
SP2000ST/V20-0
20S9105
1.4404
200 x 50
3
SP2000ST/V20-0/HC
20S9115
Hastelloy®x
200 x 50
3
SP2000ST/V20-1
20S9145
1.4404
500 x 60
3
SP2000ST/V20-1/HC
20S9155
Hastelloy
®
x
500 x 60
3
SP2000ST/V20-1/HC 0,5µm
20S9156
Hastelloy®x
500 x 60
0,5
SP2000ST/V20-3
20S9300
1.4404
1000/300 x 31
3
Table 2 Possible filters and preliminary filters for use inside the probe
The preliminary filters can be extended with the following extension tubes.
Extension [mm] with volume displacer
Part No.
500
20S9165
1000
20S9170
1500
20S9175
Table 3 Extension tubes

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9OPTIONS
The following options are suitable for use in hazardous areas. Please read the identification for the respective
zone in table 4.
Warning
When selecting options, attention must be paid to the operating parameters.
Figure 2 Schematic view of the options for backflush and test gas feeding
Entnahm esonde
Sample Probe
Entnahm esonde
Sample Probe
Op tion VA
Meßgasausgang
Sample out
Meßgasausgang
Sample out
Op tion 2X
Entnahm esonde
Sample Probe
Meßgasausgang
Sample out
Meßgasausgang
Sample out
Entnahm esonde
Sample Probe
Entnahm esonde
Sample Probe
Entnahm esonde
Sample Probe
Meßgasausgang
Sample out
Prüfgas/Rüc kspülung
Cal. gas/ pure gas
Op tion
R / BB
CCFOption
Meßgasausgang
Sample out
Prüfgas/Rüc kspülung
Cal. gas/ pure gas
Op tion
BBF
CCOption
Meßgasausgang
Sample out
Prü f g a s
Cal. gas
Op tion
C/I
i - Lu f t
I-Air
Entnahm esonde
Sample Probe
Op tion
RS
Meßgasausgang
Sample out
Rüc kspülung
Pu re g a s
Entnahm esonde
Sample Probe
Op tion
3VA
Meßgasausgang
Sample out
Prüfgas oder Rüc kspülung
Cal. gas or pure gas

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General safety instructions for back flushing and feeding of calibration gas
Warning
A backflushing gas suitable for the sampling point must be selected for backflushing.
The backflushing pressure / calibration gas pressure must
always be higher than the
process pressure. This minimum pressure must be monitored with a press switch at the
inlet side of the accumulator or the check valve. If the flush gas pressure drops below
the process pressure, the backflushing solenoid valve must not be operated.
The maximum permissible pressures of 6 bar abs. must not be exceeded (see technical
data).
Do not choose back flush intervals longer than 3 seconds because in case of strong
pollution of the pre-filter pressure inside the probe would be rising and this would lead
to a discharging towards the analyzer via th
e patented pressure control valve in the
outlet of the probe due to a defined leak rate of this valve.
At sampling points with inerting, backflushing must be performed with corresponding
inert gas. It must be ensured that the inert gas does not introduce oxygen or combus-
tible gases into the system.
9.1 BACKFLUSH UNIT TYPE /RS
The backflush unit type /RS consists of a pressure relief valve, solenoid valve, accumulator and patented pres-
sure control valve in the probe outlet.
The cyclical operation of the solenoid valve and monitoring of the backflushing pressure must be effected
externally. The electrical connection of the solenoid valve must be made in an Ex e connection box. An addi-
tional solenoid valve in the sample gas outlet of the probe is not necessary because the patented pressure
control valve shuts the probe outlet during back purging in order to protect the downstream analysis against
the pressure push of the back purge.
9.2 OPTION /R, /BB AND /BBF FOR TEST GAS FEEDING OR BACKFLUSHING VIA CHECK VALVE R 1/4“,
BB 3/8“ OR BBF 3/8“
For back purging of the probe tube or the preliminary filter, flush gas is fed via the check valve. Hereby, it is
recommended to separate the downstream analysing system from the probe in order to avoid pressure pushes
to the system (Option /I). The opening pressure of the check valve is 0,7 bar. The flush gas or calibration gas
pressure should be higher than 0,7 bar.
Options /R and /BB are for backflush of the inside space of the probe and the preliminary filter, the option BBF
is for backflush of the probe filter and the preliminary filter.
Note
In order to avoid the cooling down of the inside probe, it is recommended
to effect the
backflush in short intervals of < 1 s.

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During the feeding of test gas, the analyse system remains connected. The quantity of test gas should be at
least 25 % higher than the quantity of sample gas which is taken in by the analysing system, thus avoiding a
mixture with the test gas. For processes with overpressure, this kind of feeding the test gas is not recom-
mended. In this case, you should use an integrated ball valve in the inlet of the probe as stop valve.
In principle, you need only a small quantity of test gas for probes with an integrated ball valve, because the
probe is separated from the process when the ball valve is activated so that there is no danger of a mixture
with the process gas.
In case of manual operation, please turn the turning handle to the right side until the limit stop in order to shut
off the probe.
Note
In case of low pressure operation, please take into consideration that as from 300 mbar
secondary air will be taken in via the non-closed check valve.
9.3 OPTION /C/I TEST GAS FEEDING VIA CHECK VALVE BEHING THE PROBE FILTER WITH PNEUMATIC
STOP VALVE OF THE PROBE OUTLET TO THE PROCESS
By activating the pneumatic stop valve with compressed air, the measuring gas way behind the probe filter is
shut off. Now, you can feed test gas via the check valve to the sample gas outlet of the probe without any loss.
9.4 OPTION 2-WAY BALL VALVE
For any service work, eg. changing of the filter element or cleaning works, the stop valve in the probe inlet is
actuated from outside with the turning handle. This becomes necessary eg. in case of overpressure in the pro-
cess or in case of toxic gas components.
Warning
In case of toxic gas components, please backflush the probe after shut off and before
opening!
9.5 OPTION SPUN GLASS CARTRIDGE FW
With the FW option, the filter element is omitted; instead of the filter element, a spun glass cartridge is
mounted on the filter housing lid. This spun glass cartridge is filled with a high temperature resistant spun
glass. The option FW is used at sample points with risk of quickly blocking filter surfaces due to tar or sticky
substances.
The use of standard filter elements S-3SS150 or S-2K150 is not possible with option FW.

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9.6 OPTION /3VA TEST GAS FEEDING AND BACKFLUSHING VIA 3/2-WAY BALL VALVE
With the 3/2-way ball valve, you can execute both functions „backflushing“ and „test gas feeding“ one after
the other. Only one operation each may be automated via the pneumatic actuation.
This kind of gas feeding provides the advantage that during backflushing the downstream analyse system is
automatically separated from the probe respectively, the probe is automatically separated from the process
during test gas feeding. For that reason, you need a lower quantity of test gas as no mixture with the process
gas may occur.
For the measuring operation, the ball valve must be put into the central position.
For backflushing, the ball valve must be put into the corresponding position. This means in case of manual
operation to turn the handle from the central position to the left side as far as it will go.
For the test gas feeding, the ball valve must be turned to the right side as far as it will go.
For the measuring operation, return the ball valve into the neutral position.
Figure 3 Function scheme of the option 3/2-way ball valve /3VA
Ball valve position
Measuring
Ball valve position
Blow back
Ball valve position
Test gas

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9.7 BALL VALVE DRIVE MS1
The following drives are available:
Pneumatic drive with spring return type MS/ NC or NO
Hereby 2 operating conditions can be realised:
a. Using a shut off ball valve VA the conditions:
"Open=measuring" and "shut".
b. Using a 3/2-way ball valve 3VA either the conditions:
"Open=measuring" and "blow back" or
"Open=measuring" and "test gas feeding"
Type MS-C for test gas feeding and type MS-B for blow back.
When placing the order specify, if the ball valve is
NC, (shut without control air), or
NO, (open without control air). Standard = NC
9.8 OPTION /2X SECOND SAMPLE GAS OUTLET ON THE PROBE
With this option, the probe has got two sample gas outlets ¼“ NPT female.
9.9 OPTION /PT100: ADDITIONAL PT100 WITH TERMINAL BOX FOR EXTERNAL TEMPERATURE CON-
TROL
Additional PT100 (2-wire) with separate terminal box mounted on the probe.
The mounted cable gland fits for cable diameters 7 - 12 mm.
9.10 PROBE HEATING
The probe heating type HEX5-x.08 is suitable for temperature ranges of 85 – 185 °C. It consists of a heating
plate with heating cartridges and a control electronic.
For the heater type HEX5.1.08, the control electronic is mounted onto the probe. This means a range of the
ambient temperature for the probe of 0 – 50 °C.
The probe heating type HEX5.2.08 is designed for an external mounting of the control unit (in Ex zone 2). For
the electrical connection, a terminal box is mounted on the probe which means an ambient temperature range
of 0 – 70 °C. The externally mounted control unit can be used within an ambient temperature range of 0 –
50 °C.
Technical data may be taken from the separate operating manual HEX5-x.08.

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10 TECHNICAL DATA
Gas sample probe type
SP3200V (up to 185 °C)
SP3200 (more than 185 °C)
Part No.
20S5705
20S5700
Weather protection shield
Yes
Filter housing material
Stainless steel 316/316Ti
Sealing materials
Graphite, FKM
Graphite
Probe flange sealing material
Graphite
Pre-filter/sample tubes
Optional, see data sheet 2.17 and 2.14
Sample pressure max.
0.5 - 6 bar
Ambient temperature
-20 °C to max. 200 °C [-4 to max. 392 °F] depending on the temperature class
Permissible process gas temperature
Depending on the temperature class, however max. 200 °C [392 °F]at the probe en-
try
Filter chamber volume
120 cm3
Filter element, porosity
F-3SS150= stainless steel*, 3 µmS-2K150= ceramic**, 2 µm
Sample gas outlet connection
1x 1/4“ NPT i for max. 8 mm-tube connectors
Connection gas outlet at option RS
6 mm Swagelok®connector
Mounting flange
DN 65 PN 6, Form B, SS316Ti* >DN or ANSI possible**
Weight
7 kg
Option heating type HEX5
HEX5-1.08
HEX5-2.08
Part No.
20S9650(a)
20S9655(a)
Temperature controller
Integrated (on the probe)
Externally
Mounting controller
In the Ex-zone 2 and 22
Control
Electronic
Power supply
240 V 50/60 Hz max. 800 W, alternatively 120 V, 50/60 Hz max. 830 W
Electrical connection
Cable gland, terminal range 6 – 12 mm, terminals max. 4 mm2
Marking
II 3 G Ex nA nC nL IIC T5 to T2,
II 3 D Ex tD A22 IP65 T75°C to T235°C
Class I, Division 2, Groups A/B/C/D, T5 - T2B
Temperature controller
II3G Ex nA nC nL IIC T5 to T2
II3D Ex tD A22 IP65 T75°C to T235°C
Class I, Div. 2, Groups A/B/C/D T5 – T2B
Admissible medium temperature on the
probe inlet
The admissible medium temperature is limited by the materials used (< 200 °C [392
°F]) and by the maximum admissible surface temperatures as shown in table 4.
Power
Max. 800 W (240 V), max. 830 W (120 V)
Case protection
IP65, EN 60529
Operating temperature
0 to max. 230 °C [32 to max. 446 °F] according to T-class, pls. indicate with order.
Ambient temperature
0 to +50 °C [32 to 122 °F]
Controller: 0 to +50 °C [32 to 122 °F],
heating terminal box: -20 to +70 °C [-4 to
158 °F],
with back purge unit: -20 to 55 °C [-4 to
131 °F]

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Low temperature alarm contact
−5 °C to T
SET
,capacity 250 V 3 A AC, 0.25 A DC, 1 contact NO, dry contacts
Excess temperature limiter
+5°C to TSET, manual reset
Option back purge unit type RS
RS
Part No.
20S5560(a)
Power supply
230 V 50/60 Hz 9 W or 115 V 50/60 Hz 9 W (a)
Electrical connection
Cable 3 x 1 mm2
Marking
II 3GD T4
Connection
G 1/2”i at the buffer vessel
Max. back purge pressure
6 bar abs.
Volume buffer vessel
2 liters
Ambient temperature
-20 to 55 °C [-4 to 131 °F]
Option 2-way-ball valve in the probe en-
trance
/VA
Part No.
20S9050
Operating temperature
-20 up to 185°C [-4 up to 365 °F]
Option 2/3-way-ball valve in the probe
entrance
/3VA
Part No.
20S9325
Backflush/Test gas connection
6 mm tube
Operating temperature
-20 up to +185 °C [-4 up to 365 °F]
…
Option pneum. drive for ball valve /VA o. /3VA
MS1
Part No.
20S9055
Connection control air
G1/4” i
Pressure control air
5 - 10 bar
Option valve for blowback or calibration gas
1/4”
/R
Part No.
20S9045
Opening pressure
> 0.7 bar
Connection
6 mm tube
Maximum blow back pressure
6 bar abs.
Maximum operating temperature
+185 °C [365 °F]
Option high performance blow back valve
/BB
/BBF
Part No.
20S9008
20S9006
Way of blow back gas
Via filter chamber
Via probe filter element
Check valve
High performance check valve 3/8”
Opening pressure
> 0.7 bar
Connection
8 mm tube
Maximum blow back pressure
6 bar abs.
Maximum operating temperature
185 °C [365 °F]