Pyropress PYRP-2000ALW User manual

HAZARDOUS AREA TRANSMITTER MANUAL
SMART PRESSURE TRANSMITTERS
PYRP-2000ALW, PYRP-2000ALW SAFETY,
PYRP-2000ALW/IS, PYRP-2000ALW/L../IS
SMART PRESSURE DIFFERENTIAL TRANSMITTERS
PYRD-2000ALW, PYRD-2000ALW SAFETY, PYRD-2000GALW,
PYRD-2200ALW, PYRD-2000ALW/IS, PYRD-2200ALW/IS,
PYRD-2000GALW/IS, PYRD-2000ALW/L../IS,
PYRD-2200ALW/L../IS
SMART LEVEL PROBES
PYRD-2000YALW, PYRL-2000YALW/IS
MAN.PYRP.PYRD.EX.001
REV.A - FEBRUARY 2020
Pyropress Ltd, Bell Close, Plymouth, PL7 4JH. UK
tel. [phone]
www.pyropress.com e-mail: [email protected]

Symbols used
Symbol Description
Warning to proceed strictly in accordance with the information provided in
the documentation in order to ensure safety and full functionality of the
device.
Information particularly useful during device installation and operation.
Information particularly useful for Ex device installation and operation.
Information on disposal of used equipment.
BASIC REQUIREMENTS AND OPERATION SAFETY
The manufacturer shall not be liable for any damage resulting from
incorrect installation, failure to maintain the device in proper condition, or
device use other than intended.
Installation should be carried out by qualified staff having the required
authorization to install electrical and I&C equipment. The fitter is
responsible for performing the installation in accordance with this manual
and with the electromagnetic compatibility and safety regulations and
standards applicable to the type of installation.
If leakage in systems with I&C equipment occurs, pressurized medium
poses a threat to personnel. All safety and protection requirements must
be observed during transmitter installation, operation and inspections.
If a malfunction occurs, the device should be removed and returned for
repair to the manufacturer or a facility authorized by the manufacturer.
In order to minimize the risk of malfunction and associated risks to staff, do
not install or use the device in particularly adverse conditions, where the
following hazards occur:
Possible mechanical impacts, excessive shocks and vibration;
Excessive temperature fluctuation;
Water condensation, dust, icing.
Installations of this equipment should be made with particular care and in
accordance with standards and regulations applicable to this type of
installations.
Continuous development may result in changes to specification without prior notice. The latest
version can be found on the manufacturer's website: www.pyropress.com.

MAN.PYRP.PYRD.EX.001
Revision A.February 2020 3
TABLE OF CONTENTS
1.INTRODUCTION ........................................................................................... 5
2.SAFETY ........................................................................................................ 5
3.COMPLETE DELIVERY CHECKLIST .......................................................... 5
4.IDENTIFICATION MARKS............................................................................ 6
5.TRANSMITTER DESIGN .............................................................................. 6
6.ELECTROSTATIC HAZARDS...................................................................... 7
7.SPECIAL CONDITIONS OF USE ................................................................. 7
8.TRANSMITTER PROTECTION LEVEL (EPL) AND HAZARDOUS AREAS8
9.INTRINSICALLY-SAFE Exi TRANSMITTERS COVERED BY
CERTIFICATES KDB 20 ATEX 0016X AND IECEx KDB 20.0004X................. 9
9.1.Standards used for assessment..................................................................................9
9.2.Transmitter Ex certification designations according with certificates KDB 20 ATEX
0016X and IECEx KDB 20.0004X. ..............................................................................9
9.3.Minimum supply voltage............................................................................................10
9.4.Load resistance.........................................................................................................10
10.INTRINSICALLY-SAFE Exi TRANSMITTERS COVERED BY
CERTIFICATES FTZU 11 ATEX 0281X AND IECEX FTZU 15.0028X............ 10
10.1.Standards used for assessment......................................................... 10
10.2.Transmitter Ex certification designations according with certificates FTZU 11 ATEX
0281X and IECEx FTZU 15.0028X ...........................................................................10
10.3.Minimum supply voltage............................................................................................11
10.4.Load resistance.........................................................................................................11
11.PERMISSIBLE PARAMETERS OF Exi TRANSMITTERS......................... 11
11.1.Linear power supply example....................................................................................12
11.2.Trapezoidal power supply example...........................................................................12
11.3.Orthogonal power supply example............................................................................ 12
12.CONNECTING Exi TRANSMITTERS AND PROBES ................................ 13
13.FLAMEPROOF Exd TRANSMITTERS COVERED BY CERTIFICATES
KDB 20 ATEX 0016X AND IECEx KDB 20.0004X. ......................................... 14
13.1.Standards used for assessment................................................................................14
13.2.Transmitters Ex certification designations according with certificates KDB 20 ATEX
0016X and IECEx KDB 20.0004X. ............................................................................14
14.PERMISSIBLE PARAMETERS OF Exd TRANSMITTERS ....................... 15
14.1.Ambient temperature range and temperature classes .............................................. 15
14.2.Power supply, connection and operation of Exd transmitters....................................16
15.ADDITIONAL INFORMATION .................................................................... 21
15.1.Additional information................................................................................................21
15.2.History of revisions....................................................................................................21

MAN.PYRP.PYRD.EX.001
4Revision A.February 2020
LIST OF DRAWINGS
Figure 1. Sample transmitter nameplate with common Exi and Exd designation ....................6
Figure 2. Transmitter installation in potentially explosive areas. .............................................8
Figure 3. Principle of power supply from a linear source.......................................................12
Figure 4. Principle of power supply from a trapezoidal source. .............................................12
Figure 5. Connecting Exi transmitters and probes ................................................................13
Figure 6. Connecting Exd transmitters and probes ...............................................................16
Figure 7. Installation of cable entries and blanking plugs ......................................................18
Figure 8. Flameproof joints of enclosure. ..............................................................................20
LIST OF TABLES
Table 1. Minimum supply voltage of and Exi transmitter with reference to certificates KDB ..
ATEX ….. and IECEx KDB …….. ..........................................................................................10
Table 2. Minimum supply voltage of and Exi transmitter with reference to certificates……..
FTZU 11 ATEX 0281X and IECEx FTZU 15.0028X...............................................................11
Table 3. Permissible input parameters of an Exi transmitter..................................................11
Table 4. Ambient temperature range and temperature classes for Exd transmitters .............15
Table 5. Maximum supply voltage for Exd transmitters .........................................................16
Table 6. List of equivalent cable entries.................................................................................18
Table 7. List of equivalent blinding plugs...............................................................................19
Table 8. List of flameproof joints in a flameproof enclosure...................................................20

MAN.PYRP.PYRD.EX.001
Revision A.February 2020
5
1. INTRODUCTION
This manual is only applicable to the PYRP-2000ALW, PYRP-2000ALW Safety,
PYRD–2000ALW, PYRD–2000ALW Safety, PYRD–2200ALW, PYRD-2000GALW and
PYRD–2000YALW series transmitters in Ex (explosion-proof), Exi (intrinsically safe), Exd
(flameproof), and both Exi and Exd variants. Ex information are included in the “Product
Certificate”.
The manual contains highly important information for intrinsically safe and flameproof
transmitters compliant with ATEX directive and IECEx requirements. If Ex certified transmitters
are installed, refer to this manual and also:
- MAN.PYRP.PYRD.SA.002 manual for PYRP-2000ALW Safety, PYRD-
2000ALW Safety series transmitters,
- MAN.PYRP.PYRD.EX.002 manual for PYRP-2000ALW, PYRD-2000ALW, PYRD–
2200ALW, PYRD-2000GALW and PYRD–2000YALW series transmitters with Exd
certification and dual Exi and Exd certification,
- MAN.PYRP.PYRD.EX.003 manual for PYRP-2000ALW/IS, PYRD-2000ALW/IS,
PYRD–2200ALW/IS, PYRD-2000GALW/IS and PYRD–2000YALW/IS series
transmitters with normal and Exi certification.
2. SAFETY
Read this manual carefully before installing, commissioning and operating the
transmitter.
Installation and maintenance should be carried out by qualified staff having the
required authorisation to install electrical and measuring devices.
The transmitter should used as intended within permissible parameters.
Power source must be disconnected before installing or removing the transmitter.
No repairs or alterations to the transducer electronic system are permitted. Only
the manufacturer or a facility authorised by the manufacturer may assess damages
and repair the device (if possible).
Do not use damaged instruments. In case of failure, the device must be
disconnected.
If the equipment is used in Ex zones, the technical requirements specified in this
manual and applicable local (national) regulations must be followed.
3. COMPLETE DELIVERY CHECKLIST
The user receives the following with the transmitter:
a) Declaration of Conformity.
b) Certificate copy (on request).
c) MAN.PYRP.PYRD.EX.001 hazardous area transmitter manual.
d) MAN.PYRP.PYRD.SA.002 user manual or MAN.PYRP.PYRD.EX.002 user manual or
MAN.PYRP.PYRD.EX.003 user manual.
Items are available at www.pyropress.com.

MAN.PYRP.PYRD.EX.001
6Revision A.February 2020
4. IDENTIFICATION MARKS.
Ex transmitters are delivered with a nameplate which contains data specified in section 6.2,
MAN.PYRP.PYRD.SA.002 or MAN.PYRP.PYRD.EX.002 or MAN.PYRP.PYRD.EX.003 and
also the following:
a) Designation of Ex design type, certificate number.
b) Parameter values, e.g. Ui, Ii, Ci, Li for Exi transmitters.
c) Year of manufacture.
d) “SA Version” inscription — isolated power supply for intrinsically safe transmitters with
overvoltage protection in which ground isolated power supply should be used.
Figure 1. Sample transmitter nameplate with common Exi and Exd designation
5. TRANSMITTER DESIGN
The basic transmitter components are: an enclosure in 316 (1.4401) stainless steel or
aluminum, measuring head where a pressure signal is converted to an electrical signal, and
an electronic module converting the signal from the head to an output signal. Transmitters in
aluminum enclosures are permitted for groups II and III, and transmitters in steel enclosures
are permitted for groups I, II and III.

MAN.PYRP.PYRD.EX.001
Revision A.February 2020 7
6. ELECTROSTATIC HAZARDS
The paint, plastic nameplate and diaphragm seals coated with PTFE form a non-conducting
layer applied on a conducting base of enclosure or diaphragm seals. Transmitters with this
design in a dust-explosion zone should be installed in a place where electrostatic charging is
impossible, in particular by contact with electrically charged dust falling off or blown from
neighbouring devices.
7. SPECIAL CONDITIONS OF USE
a) The maximum temperature of the external heating source cannot heat the transmitter
above the maximum declared ambient temperature.
b) Some gaps of flameproof joint are smaller and longer than those required in table 3 of EN
60079-1 (see Table 8).
c) In hazardous dust applications, transmitters with painted aluminum enclosures as well as
transmitters equipped with plastic nameplate and PTFE-coated diaphragm separator
components should be installed in way that prevents electrostatic charging specified in
accordance with point 6.
d) A diaphragm seal or similar with titanium components must be protected from mechanical
impacts.
e) An intrinsically safe transmitter version with surge arrester, marked on the nameplate as
“SA” does not meet the requirements of clause 10.3 of EN 60079-11 (500Vrms). The
device should be installed in accordance with point 12.
f) If a transmitter with a nameplate containing dual certified designs is used, the applied
protection type must be permanently marked on the nameplate before installation (see
Figure 1).
g) For a transmitter with a flameproof enclosure, the diaphragm should not be exposed to
damage during transmitter installation and operation. The transmitter diaphragm is made
of stainless steel, Hastelloy or tantalum and must not be exposed to contact with a
medium that may damage it.
h) Galvanically separated part of apparatus within the measuring head is electrically
connected to the enclosure. This should be taken into account when installing the
apparatus with remote measuring head and cable.

MAN.PYRP.PYRD.EX.001
8Revision A.February 2020
8. TRANSMITTER PROTECTION LEVEL (EPL) AND
HAZARDOUS AREAS
Ga/Gb (Da/Db) EPL protection level allows the transmitter to be installed in Zone 1 (21) or 2
(22), and the transmitter process connectors can connect to Zone 0 (20). Gb (Db) EPL
protection level allows the transmitter and process connector to be installed in Zone 1 (21) or
2 (22). Da EPL protection level allows the transmitter and process connector to be installed in
Zone 20 or 21. Transmitters for mining applications Mb should be turned off if explosion hazard
occurs.
Figure 2. Transmitter installation in potentially explosive areas.

MAN.PYRP.PYRD.EX.001
Revision A.February 2020
9
9. INTRINSICALLY-SAFE Exi TRANSMITTERS COVERED BY
CERTIFICATES KDB 20 ATEX 0016X AND IECEx KDB
20.0004X.
9.1. Standards used for assessment
The transmitters are manufactured in compliance with the following standards:
EN 60079-0:2012+A11:2013 (IEC 60079-0:2011 ed. 6.0)
EN 60079-11:2012 (IEC 60079-11:2011 ed. 6.0).
9.2. Transmitter Ex certification designations according with
certificates KDB 20 ATEX 0016X and IECEx KDB 20.0004X.
ATEX:
II 1/2G Ex ia IIC T4/T5 Ga/Gb
II 1D Ex ia IIIC T105ºC Da
I M1 Ex ia I Ma (for the version with 1.4401 (316) steel enclosure)
KDB 20 ATEX 0016X
IECEx:
Ex ia IIC T4/T5 Ga/Gb
Ex ia IIIC T105ºC Da
Ex ia I Ma (for the version with 1.4401 (316) steel enclosure)
IECEx KDB 20.0004X
As standard, the transmitters are manufactured for explosive gas atmospheres.
A customer can also order a transmitter for explosive dust atmospheres and for
mining applications.
Transmitters with common Exi and Exd designation, as presented in Figure 1,
become intrinsically safe transmitters when Exi field is permanently marked.

MAN.PYRP.PYRD.EX.001
10 Revision A.February 2020
9.3. Minimum supply voltage
Table 1. Minimum supply voltage of an Exi transmitter according with certificates
KDB 20 ATEX 0016X and IECEx KDB 20.0004X.
Minimum supply voltage for
transmitters with backli
g
ht off
Minimum supply voltage for
transmitters with backli
g
ht on *
)
11.5 V 14.5 V
*) Backlight can only be turned on at transmitter manufacturing
sta
g
e
9.4. Load resistance
a) For a linear power supply from a barrier
𝑅 󰇟Ω󰇠 𝑈 11.5 𝑉󰇛𝑅∗0.02066 𝐴󰇜
0.02066 𝐴
b) For power supply from a trapezoidal or orthogonal source.
𝑅 󰇟Ω󰇠 𝑈 11.5 𝑉
0.02066 𝐴
Rw – barrier resistance;
Uapp – minimum voltage of the barrier used
10. INTRINSICALLY-SAFE Exi TRANSMITTERS COVERED BY
CERTIFICATES FTZU 11 ATEX 0281X AND IECEX FTZU
15.0028X
10.1. Standards used for assessment
The transmitters are manufactured in compliance with the following standards:
EN 60079-0:2012+A11:2013 (IEC 60079-0:2011 ed. 6.0)
EN 60079-11:2012 (IEC 60079-11:2011 ed. 6.0).
10.2. Transmitter Ex certification designations according with
certificates FTZU 11 ATEX 0281X and IECEx FTZU 15.0028X
ATEX:
II 1/2G Ex ia IIC T4/T5 Ga/Gb
II 1/2G Ex ia IIB T4/T5 Ga/Gb (version with PTFE-shielded cable)
II 1D Ex ia IIIC T105ºC Da
I M1 Ex ia I Ma (for the version with 1.4401 (316) steel enclosure)
FTZU 11 ATEX 0281X
IECEx:
Ex ia IIC T4/T5 Ga/Gb
Ex ia IIB T4/T5 Ga/Gb (version with PTFE-shielded cable)
Ex ia IIIC T105ºC Da
Ex ia I Ma (for the version with 1.4401 (316) steel enclosure)
IECEx FTZU 15.0028X

MAN.PYRP.PYRD.EX.001
Revision A.February 2020
11
As standard, the transmitters are manufactured for explosive gas atmospheres. A
customer can also order a transmitter for explosive dust atmospheres and for mining
applications.
10.3. Minimum supply voltage
Table 2. Minimum supply voltage of an Exi transmitter according with certificates
FTZU 11 ATEX 0281X and IECEx KDB 15.0028X
Minimum suppl
y
volta
g
e
10.5 V
10.4. Load resistance
a) For a linear power supply from a barrier
𝑅 󰇟Ω󰇠 𝑈 10.5 𝑉󰇛𝑅∗0.022 𝐴󰇜
0.022 𝐴
b) For power supply from a trapezoidal or orthogonal source.
𝑅 󰇟Ω󰇠 𝑈 10.5 𝑉
0.022 𝐴
Rw – barrier resistance;
Uapp – minimum voltage of the barrier used
11. PERMISSIBLE PARAMETERS OF Exi TRANSMITTERS
Table 3. Permissible input parameters of an Exi transmitter
Linear power
suppl
y
Orthogonal power supply Trapezoidal power suppl
y
Ui = 30 V Ui = 24 V Ui = 24 V Ui = 24 V, UQ=48 V
Ii = 0.1
A
Ii = 0.025
A
Ii = 0.05
A
Ii = 0.05
A
Pi = 0.75 W Pi = 0.6 W Pi = 1.2 W Pi = 0.7 W
Ci = 2.5 nF Ci = 2.5 nF Ci = 2.5 nF Ci = 2.5 nF
Li = 18 µH Li = 18 µH Li = 18 µH Li = 18 µH
-40⁰C≤Ta≤+80⁰C (T5) -40⁰C≤Ta≤+80⁰C (T5) -40⁰C≤Ta≤+80⁰C (T4) -40⁰C≤Ta≤+80⁰C (T5)
The transmitters should be powered via approved intrinsically safe barriers / galvanic
isolators. The parameters of their outputs to the hazardous area should not exceed the
limit power supply parameters for the below specified transmitters.

MAN.PYRP.PYRD.EX.001
12 Revision A.February 2020
11.1. Linear power supply example
For example, linear power supply is provided by a typical barrier with the following
parameters
Uo = 28V; Io = 0.1A; Po = 0.7W; Rw = 280.
Figure 3. Principle of power supply from a linear source.
11.2. Trapezoidal power supply example
Uo = 24V; Io = 50mA; Po = 0.7W
An example of trapezoidal power supply is shown in Figure 4 .
Figure 4. Principle of power supply from a trapezoidal source.
If U

, UQ, I0, P0have the following relations:
P
U∗I
4
If U1/2UUQ, I0, P0have the following relations:
P
U󰇛UU󰇜
R
Resistance Rw:
RU
I
11.3. Orthogonal power supply example
Uo = 24 V Io = 25 mA Po = 0.6 W
Uo = 24 V Io = 50 mA Po = 1.2 W
Orthogonal power supply means that the voltage of an intrinsically safe power adapter does
not change until the current limiter is activated.
The level of protection of orthogonal power supply adapters is usually “ib”. A transmitter
supplied from such power adapter is usually an “ib” intrinsically safe device.
transmitte
r
transmitte
r
Io
Ui Uo
Q
I Rw
U
Q
Ii

MAN.PYRP.PYRD.EX.001
Revision A.February 2020 13
An example of power supply in practice:
A stabilized power adapter with Uo = 24 V, “ib” protection level and current limited to
Io = 25 mA.
12. CONNECTING Exi TRANSMITTERS AND PROBES
The transmitter and other devices in the measuring loop should be connected in
accordance with the current Intrinsically Safe equipment installation regulations and the
conditions for use in designated hazardous areas.
Failure to observe the above can increase the risk of explosion and the resulting hazard
to people and property.
Figure 5. Connecting Exi transmitters and probes
The transmitter is equipped with an additional communication resistor RD=240Ω.
<SIGNAL -> and <TEST -> terminals are short-circuited in factory. RDresistor is used
when transmitter local communication is required and the Ro < 240 Ω. <SIGNAL ->
and <TEST -> terminals must be open-circuited then.
If the medium temperature can exceed Ta=80°C, elements, such as diaphragm seals,
siphon tubes, etc., should be used. The transmitter operating temperature Tp must
meet the Tp≤Ta condition.
The electrical system for connecting transmitters should meet installation requirements
of applicable standards.
No repairs or alterations to the transmitter electrical system are permitted. Only the
manufacturer or a facility authorised by the manufacturer may assess damage and
repair the device (if possible).

MAN.PYRP.PYRD.EX.001
14 Revision A.February 2020
“Version SA” transmitters should be supplied from devices equipped with a galvanically
isolated power supply. If a galvanically isolated power supply is not available, the
transmitter or metal parts connected to it should be properly grounded, for instance
with equipotential wiring or an equipotential bonding between the transmitter and the
negative pole of power supply barrier.
The transmitter enclosure has two entries (one with blanking plug) in either M20x1.5
or 1/2 NPT threads. Transmitters with common Exi and Exd designation, as presented
in Figure 1, become intrinsically safe transmitters when Exi field is permanently
marked. If such transmitter is delivered without a cable gland, the customer is obliged
to install a cable gland with at least IP66 protection and operation temperature range
suitable for the installation site. In transmitters used in dust explosion zones, the cable
glands installed by the customer should be certified and have a designation proper to
dust zones where the transmitters are used.
13. FLAMEPROOF Exd TRANSMITTERS COVERED BY
CERTIFICATES KDB 20 ATEX 0016X AND IECEx KDB
20.0004X.
13.1. Standards used for assessment
The transmitters are manufactured in compliance with the following standards:
EN 60079-0:2012+A11:2013 (IEC 60079-0:2011 ed. 6.0)
EN 60079-11:2012 (IEC 60079-11:2011 ed. 6.0)
EN 60079-1:2014 (IEC 60079-1:2014 ed. 7.0)
EN 60079-31:2014 (IEC 60079-31:2013 ed. 2.0)
EN 60079-26:2015 (IEC 60079-26:2014 ed. 3.0)
13.2. Transmitters Ex certification designations according with
certificates KDB 20 ATEX 0016X and IECEx KDB 20.0004X.
ATEX:
II 1/2G Ex ia/db IIC T6/T5 Ga/Gb
II 1/2D Ex ia/tb IIIC T105ºC Da/Db
I M2 Ex db ia I Mb (for the version with 1.4401 (316) steel enclosure)
KDB 20 ATEX 0016X
II 2G Ex ia/db IIC T6/T5 Gb
II 2D Ex ia/tb IIIC T105ºC Db
I M2 Ex db ia I Mb (for the version with 1.4401 (316) steel enclosure)
KDB 20 ATEX 0016X

MAN.PYRP.PYRD.EX.001
Revision A.February 2020
15
IECEx:
Ex ia/db IIC T6/T5 Ga/Gb
Ex ia/tb IIIC T105ºC Da/Db
Ex db ia I Mb (for the version with 1.4401 (316) steel enclosure)
IECEx KDB 20.0004X
Ex ia/db IIC T6/T5 Gb
Ex ia/tb IIIC T105ºC Db
Ex db ia I Mb (for the version with 1.4401 (316) steel enclosure)
IECEx KDB 20.0004X
Transmitters with common Exi and Exd designation, as presented in Figure 1,
become flameproof transmitters when Exd field is permanently marked.
14. PERMISSIBLE PARAMETERS OF Exd TRANSMITTERS
14.1. Ambient temperature range and temperature classes
Table 4. Ambient temperature range and temperature classes for Exd transmitters
Operating temperature range Temperature class and
maximum surface temperature
Ambient
temperature
Process
temperature
-40ºC ≤T
a
≤40ºC -40ºC ÷ 40ºC T6/T105ºC
-40ºC ≤T
a
≤75ºC -40ºC ÷ 75ºC T5/T105ºC
If the medium temperature can exceed Ta
max
, elements, such as diaphragm seals,
siphon tubes, etc., should be used. The transmitter operating temperature Tp must
meet the Tp≤Ta
max
condition.

MAN.PYRP.PYRD.EX.001
16 Revision A.February 2020
14.2. Power supply, connection and operation of Exd transmitters
Connect the transmitter according to the wiring diagram (Figure 6). The transmitter
electrical connections in potentially explosive zones should be made by personnel
having necessary knowledge and experience. The transmitters should be properly
grounded by means of a grounding terminal. If the transmitter has metal contact with
grounding structural elements or piping, separate transmitter grounding is not
necessary.
The transmitter and equipment in the transmitter measurement loop must be
connected in compliance with the relevant Ex installation standards and conditions for
application in explosion risk zones. If these rules are not followed, explosion may occur
and personnel may be exposed to danger.
Figure 6. Connecting Exd transmitters and probes
The transmitters should be supplied with maximum voltage specified in the table below
(24 VDC rating) from transformer power supplies or other devices providing at least
enhanced isolation between primary and secondary winding in which voltages cannot
exceed 250 VAC. It is responsibility of the user to provide power supply compliant with
the requirements above.
Table 5. Maximum supply voltage for Exd transmitters
Maximum supply voltage
PYRP-2000ALW Safety,
PYRD-2000ALW Safety
PYRP-2000ALW, PYRD-2000ALW,
PYRD-2200ALW, PYRD-2000GALW,
PYRD-2000YALW
36 VDC 55 VDC
In a hazardous area, do not remove the cover of the transmitter, or connect to the
terminals or change the position of local indicator (display) without first electrically
isolating the transmitter.

MAN.PYRP.PYRD.EX.001
Revision A.February 2020 17
For transmitter calibration or check outside a hazardous area, a communicating device
can be connected to <SIGNAL +> and <TEST +> terminals.
The transmitter is equipped with a communication resistor RD= 240 Ω, which is short-
circuited at <SIGNAL -> and <TEST -> terminals in factory. RDresistor is used when
transmitter local communication is required and the Ro < 240 Ω. <SIGNAL -> and
<TEST -> terminals must be open-circuited then.
The cover locking security & sealing is shown in MAN.PYRP.PYRD.SA.002 or
MAN.PYRP.PYRD.EX.002 or MAN.PYRP.PYRD.EX.003 user manuals.
No repairs or alterations to the transmitter enclosure elements and electrical system
are permitted. Only the manufacturer or a facility authorised by the manufacturer may
assess damages and repair the device (if possible).
Due to the type of enclosure material (light alloy with high aluminum content), the user
is obliged to ensure that in the transmitter installation site its enclosure cannot be
impacted and, consequently, damaged.
The transmitter enclosure has two cable entries (one with blanking plug) in either
M20x1.5 or 1/2 NPT threads. After consultation with the manufacturer, the user can
purchase a transmitter with a cable gland or purchase the missing cable gland
separately. As standard, the transmitter is delivered to the customer without cable
gland installed. In cable gland locations, a transport plug can be installed. In such case,
the transport plug should be removed and appropriate cable gland fitted (Figure 7)
before the transmitter is installed. It is responsibility of the user to install a certified
cable gland compliant with the list of equivalent cable glands in Table 6. List of
equivalent cable entriesAs a blanking plug, a plug supplied with the transmitter or a
certified blinding plug compliant with the list of equivalent blinding plugs in Table 7 can
be used. It is permitted to install other types of certified cable entries and blanking
plugs with marking Exd IIC Gb, Extb IIIC Db and Exd I Mb with at least IP66 protection
and -40°C...75°C temperature range.
Apply LOCTITE 577 on the 1/2 NPT thread of cable gland before installation.
When connecting, make sure that the cable type and diameter is suitable for the cable
gland used and temperature at the installation site.

MAN.PYRP.PYRD.EX.001
18 Revision A.February 2020
Figure 7. Installation of cable entries and blanking plugs
Table 6. List of equivalent cable entries
Cable entr
y
t
y
pe Manufacture
r
Thread Desi
g
nation IP Certificate no.
501/423 Hawke
International
M20x1.5
(
1/2” NPT
)
Exd IIC Gb
Extb IIIC Db 67 CML 19ATEX1167X
501/421 Hawke
International
M20x1.5
(
1/2” NPT
)
Exd IIC Gb
Extb IIIC Db 67 CML 19ATEX1167X
ICG 623 Hawke
International
M20x1.5
(
1/2” NPT
)
Exd IIC Gb
Extb IIIC Db 67 Baseefa 06ATEX0058X
501/453/RAC Hawke
International
M20x1.5
(
1/2” NPT
)
Exd IIC Gb
Extb IIIC Db 67 CML 19ATEX1167X
501/453/Universal Hawke
International
M20x1.5
(
1/2” NPT
)
Exd IIC Gb
Extb IIIC Db 67 CML 18ATEX1268X
ICG/653/Universal Hawke
International
M20x1.5
(1/2” NPT)
Exdb IIC Gb
Extb IIIC Db 67 CML
18ATEX1268X
ICG/653/Universal/L Hawke
International
M20x1.5
(
1/2” NPT
)
Exd IIC Gb
Extb IIIC Db 67 CML 18ATEX1268X
A2F, A2FRC CMP-
Products
M20x1.5
(
1/2” NPT
)
Exd IIC Gb
Exta IIIC Da 67 CML 18ATEX1321X
SS2K CMP-
Products
M20x1.5
(
1/2” NPT
)
Exd IIC Gb
Exta IIIC Da 67 CML 18ATEX1321X
E1FW, E2FW CMP-
Products
M20x1.5
(1/2” NPT)
Exd IIC Gb
Exta IIIC Da
Exd I Mb
67 CML
18ATEX1324X
PX2K, PXSS2K,
PX2KX
CMP-
Products
M20x1.5
(1/2” NPT)
Exdb IIC Gb
Exta IIIC Da
Exdb I Mb
67 CML18ATEX1325
X

MAN.PYRP.PYRD.EX.001
Revision A.February 2020 19
Table 7. List of equivalent blanking plugs
Plu
g
t
y
pe Manufacture
r
Thread Desi
g
nation IP Certificate no.
475 Hawke
International
M20x1.5
(1/2” NPT)
Exd IIC Gb
Extb IIIC Da
Exd I Mb
67 Baseefa
10ATEX0262X
477 Hawke
International
M20x1.5
(1/2” NPT)
Exd IIC Gb
Extb IIIC Da
Exd I Mb
67 Baseefa
10ATEX0262X
747, 757 and 767 CMP-Products M20x1.5
(1/2” NPT)
Exd IIC Gb
Exta IIIC Da
Exd I Mb
67 CML 18ATEX1320X
Use a shielded or unshielded, non-reinforced cable with compact structure and circular
cross-section in an non-hygroscopic sheath made of an elastomer, e.g. YKSLY 2*1,
YnTKSYekw 1*2*1, LIYCY 2*1.
If a cable of different design has to be used, it should be agreed on with the transmitter
manufacturer in order to choose a suitable cable gland or individually purchase a cable
gland suited to the cable used. The list of equivalent cable entries is given above
(Table 6). The cables should be protected from damage by routing them in cable trays,
conduits, cable ladders, and secured by using fixed mounts, etc.
When periodic inspections are performed, the cover tightness, cable entry and cable
wiring into the cable entry should be checked. Visually check the enclosure and cable
for mechanical damage, and the nameplate for legibility. The diaphragm should also
be included in periodic inspections. It should have no signs of damage. It is
recommended to apply acid-free petroleum jelly on threads during maintenance.

MAN.PYRP.PYRD.EX.001
20 Revision A.February 2020
Figure 8. Flameproof joints of enclosure.
Table 8. List of flameproof joints in a flameproof enclosure
No
Length of joint
(min. actual)
L
[mm]
Diamete
r
D-d
[mm]
Quantity
of joint
Comments
(min. values acc. to
EN 60079-1)
D
[mm]
d
[mm]
L4 13.2 ᴓ15+0,027 ᴓ15

.



. 0.097 2 length of joint min.12,5
L5 12 M72x1.
5
M72x1.
5 2 min. 5 meshing turns
L6 9 M20x1.
5
M20x1.
5 2 min. 5 meshing turns
L7 12.7 1/2 NPT 1/2 NPT 2 min. 5 meshing turns on
each surface
L8 10 1 Bonded joint,
len
g
th of
j
oint min.10
The diaphragm should not be exposed to damage during transmitter installation and
operation. The transmitter diaphragm is made of stainless steel or Hastelloy and must
not be exposed to contact with a medium that may damage it.
The general rules of connecting and operating an Exd transmitter should be compliant
with the rules and standards applicable to devices in a flameproof enclosure:
EN 60079-14 – Electrical devices in explosive atmospheres. Part 14: Electrical
installations in risk areas (other than mines).
EN 60079-17 – Electrical devices in explosive atmospheres. Part 17: Electrical
installations inspection and maintenance in risk areas (other than mines).