Common CMK-03 User manual

CMK-03 GAS VOLUME CONVERTER
OPERATING INSTRUCTION
Edition: CMK3 / 102U
Firmware version: 2.2.39-39-2.7.8
Lodz, June 2016
Technical specification and construction may change due to improvement. This publication serves as general information only, and all specifi-
cations are subject to confirmation by COMMON S.A.

COMMON S.A. OPERATING INSTRUCTION CMK-03
CONTENTS
1. INTRODUCTION 5
2. SAFETY AND OPERATION 5
2.1 Transportation 5
2.2 Storage 5
2.3 Periodical inspections 5
2.4 Warranty repairs 6
2.5 List of components and additional accessories 6
3. CONSTRUCTION 9
4. TECHNICAL DATA , CONDITIONS OF USAGE, MEASUREMENT INPUTS 10
4.1 Product code and version of execution 10
4.2 Technical data 12
4.3 Intrinsically safe parameters 17
5. ASSEMBLY AND INSTALLATION 19
5.1 Clamps and outputs 20
5.1.1 TUCHEL port 20
5.1.2 Internal clamps 21
5.2 Cables for intrinsically safe circuits 22
5.2.1 Requirements of cables 22
5.2.2 Parameters and cable types 22
5.3 Protective grounding 26
5.4 Connecting the temperature sensor 27
5.4.1 Connecting the thermometer to the volume converter 27
5.4.2 Connecting the thermometer to the piping 28
5.5 Connection the pressure sensor P1 and P2 29
5.6 Connection the external pressure CPC-03 converter 30
5.6.1 Mechanical installation 30
5.6.2 Electrical connection of CPC-03 30
5.7 Connecting the LF input to the gas meter 31
5.8 Mechanical installation of the CMK-03 —appendix 1 32
5.9 Battery 32
5.9.1 Main battery 32
5.9.2 Battery of LCD backlight 33
5.10 Conditions of safety usage 34
6. GAS VOLUME CORRECTION 34
6.1 Principles of operation 34
6.2 Algorithms 36
6.3 Bio-Gas configuration 37
7. ENERGY CONVERSION 38
8. METROLOGICAL MARKS, PROTECTION SEALS, NAME PLATES 39
8.1 Metrological marks –Seal 1 and Mark IV 39
8.2 Manufacturer protection seals –Seal 2 39
8.3 User protection seals –Seal 3 39
8.4 Marking of name plate 40
8.5 Diagram of sealing 41

COMMON S.A. OPERATING INSTRUCTION CMK-03
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8.6 Identification of software 43
9. MID ALARMS 43
9.1 Principle of operation and list of alarms 43
9.2 Signalling, authorization and alarm acknowledgement 45
9.3 Principle of operation in the Vbe emergency conditions 45
10. MID INTERFERENCES (CONFIGURATION CHANGES) 46
10.1 Principle of operation and list of parameters 46
10.2 Signalling, authentication and alarms acknowledgment 47
11. LOCAL SERVICE 47
11.1 LCD menu structure 47
11.1.1 Menu Measure 51
11.1.2 Menu Archive 53
11.1.3 Menu Clock 57
11.1.4 Menu Name plate 57
11.2 Menu Settings 57
11.2.1 Configuration after installation 57
11.2.2 Parameters settings –general information 58
11.2.3 Log in 59
11.2.4 Settings of COM Ports parameters 60
11.2.5 Registration 62
11.2.6 Gas meter 62
11.2.7 Measure 62
11.2.8 Limits and “gas guard” function 64
11.2.9 Gas 66
11.2.10 Simulation 67
11.2.11 Inputs IN 68
11.2.12 Outputs OUT 69
11.2.13 Control of odorizing unit, OUT1 output proportional to Vbs 70
11.2.14 LCD 71
11.2.15 Users 71
11.2.16 Clock 72
12. SETTINGS OF EXTENDED FUNCTIONALIETIES 73
12.1 Summary alarms 73
12.2 Control of the gas meter FF/LF constant error 73
12.3 Operating below Qmin of the gas meter –in range QmSTOP <–> QmMIN 74
12.4 LCD power supply 74
12.5 Reserve1 configuration in GAZ-MODEM 74
12.6 Activity time of OPTO-GAZ port 75
13. REMOTE CONTROL OF CMK-03, USERS, AUTHORIZATION 75
13.1 CCTool configurator 75
13.1.1 Connection by using COGUSB-03 76
13.1.2 Users and authorization 77
14. DATA REGISTRATION, READING AND CONFIRGURATION IN TELEMETRIC SYSTEMS 78
14.1 Registered data 78
14.1.1 Data registered with registration period and and daily registered data 79

COMMON S.A. OPERATING INSTRUCTION CMK-03
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14.1.2 Events 81
14.2 Reading and configuration in the telemetric systems 82
15. ENVIRONMENTAL PROTECTION 83
15.1 Packaging waste 83
15.2 Disposal of used batteries and devices after life-time 83
16. HISTORY OF THE DOCUMENTATION CHANGES 84
17. NOTES 84

COMMON S.A. OPERATING INSTRUCTION CMK-03
5
1. INTRODUCTION
The CMK-03 Gas Volume Converter is a Type 1 converter (according to EN12405-1 + A2:2010) which fully meets
the requirements of the MID Directive.
2. SAFETY AND OPERATION
The following warning marks are used in this manual:
ATEX Directive requirements (intrinsic safety)
installation and usage
MID Directive requirements
Packaging Regulations requirements (used accumulators and
devices after their life time).
recyclable packages
The installation and connection of the CMK-03 requires to follow according to recommendations of this operating
instruction. The device should be used according with the regulation and rules of the explosion hazard safety.
The CMK-03 can be installed and operate in explosion hazard zone 1 or 2. The device can
cooperate with the intrinsically safe circuits on security level “ia”or “ib”. The subgroup
conformity of the potentially gas mixture has to be maintained with the subgroup of device
circuits (IIA or IIB) and temperature T4 class.
The CMK-03 can be connect to the intrinsically safe circuits of other devices, only ac-
cordingly to the safety rules of usage which are contained in the certificates and manu-
facturer instructions of this devices. The conformity of the intrinsically safe parameters
has to be maintained for connected devices.
2.1 Transportation
The transportation should be carried out in the original packaging, which secures the device against the mechani-
cal damage and assure a proper level of protection.
2.2 Storage
The elements of the CMK-03 should be storage in the original package in room with temperature from -20°C till
+60°C and humidity which does not exceeding 80%, without vapour and chemically active compounds.
2.3 Periodic inspections
The CMK-03 is dedicated to installation and operation in the explosion hazard zones. To be sure that device and
the installation system allows for safety usage, it is necessary to implement a regular periodical inspections or
assure a continuous supervision by the qualified personnel. The proper services should be carried out in every
necessary case.
The detailed guidelines regarding to the control frequency and control level can be found in the standard EN
60079-14:2008.
The devices with "X" sign in the certificate number have a special condition of usage, which are precisely de-
scribed in the certificate documentation.

COMMON S.A. OPERATING INSTRUCTION CMK-03
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2.4 Warranty repairs
The manufacturer or a recommended authorized workshops should perform warranty re-
pairs of the CMK-03. The method of usage after warranty repairs and post-warranty repairs,
should be consistent with the regulations of the country where the device is installed.
The CMK-03 should be disassembled from the operating point in case of doubt regarding the correctness of
instrument indications. The device should be pass to the appropriate laboratory for checking and verification. The
checking may be carried out by means of control instruments without damage or removing the manufacturer's
protection seals.
WARNING !
The removing or damage of manufacturer protection seal means the loss of guarantee
and loss of intrinsically safe characteristic.
2.5 List of components and additional accessories
List of components:
CMK-03 Gas Volume Converter operating instruction
guarantee card
initial verification certificate (if there is present a mark of the initial verification)
gasket of pressure connection M12 thread (type O-ring, dimensions 9,3x2,4mm)
transporting cover of the pressure converter (plug P1, P2)
cable glands plugs in dimension 6mm and 8mm
sealed, protective covers for the PT1000, LF and HF clamps
Table 2.1 Additional Accessories
NR
additional accessories, set name: example drawing
1
cable sleeves for finishing the wires assembled on clamps:
size 0,25mm2/ 8-10mm- 100 pcs.
size 0,34mm2/ 8-10mm- 100 pcs.
size 0,5mm2/ 8-10mm- 100 pcs.
size 0,75mm2/ 8-10mm- 100 pcs.
2
Assembly set through the holes in the housing
Part name
Quantity
bolt (cylinder type) M5x45
4
washer M5
4
nut M5
4
see part 5.8.1

COMMON S.A. OPERATING INSTRUCTION CMK-03
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3
Assembly set: O-Type, flat handles
Part name
Quantity
O-Type, flat handle
4
bolt (cylinder type) M5x40
4
bolt (cylinder type) M5x12
4
washer M5
4
nut M5
4
see part 5.8.2
4
Assembly set: L-Type, flat handles, the replacement
of the CMK-02
Part name
Quantity
L-Type, flat handle
4
bolt (cylinder type) M5x40
4
bolt (cylinder type) M5x12
4
washer M5
4
nut M5
4
see part 5.8.3
5
Assembly set with the universal hangers
Part name
Quantity
left hanger universal set
1
right hanger universal set
1
universal strip of pipe holder
2
bolt M8x16
4
washer M8
4
nut M8
4
see part 5.8.4
6
Assembly set with the pipe holders
Part name
Quantity
DN50
DN80
pipe holder M8 x 61 (2")
2
-
pipe holder M8 x 89 (3")
-
2
connector of pipe holder ŁC8.61
2
-
connector of pipe holder ŁC10.89
-
2
washer M8
4
4
nut M8
4
4
see part 5.8.5
7
Assembly set with the pipe clamp
Part name
Quantity
DN100
DN150
DN200
clamping ring with bolt
DN100
2
-
-
clamping ring with bolt
DN150
-
2
-
clamping ring with bolt
DN200
-
-
2
base of band clip DN100
2
-
-
base of band clip DN150-200
-
2
-
base of band clip DN150-200
-
-
2
bolt M8x16
4
4
4
washer M8
4
4
4
nut M8
4
4
4
see part 5.8.5

COMMON S.A. OPERATING INSTRUCTION CMK-03
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8
Assembly set with the band clips
Part name
Quantity
DN250
DN300
band clip with lock
2
2
base of band clip DN250-300
2
2
bolt M8x16
4
4
washer M8
4
4
nut M8
4
4
see part 5.8.5
9
Assembly set with bars mounted into collar
Part name
Quantity
assembly bars into collar
2
bolt (cylinder) M5x45
2
washer M5
2
nut M5
2
bolt (cylinder type) M5x12 (assembly of the
CKMT valve)
2
see part 5.8.6
10
grounding clamp elements: plate + spring washer + bolt (available in
the CMK-03 set; spare part)
11
The assembly set of thermometer in the thermowell; the set is
adapted to sealing by the cord –bolt nut, washer, seal
see part 5.4.2
12
The tightening nut M12x1,5 of the pressure measurement pipe,
sleeve, pulse pipe.
The length and material (cooper or acid-resistant stainless steel)
have to be indicate by the order.
13
The CKMT three way manometrical valve.
The detailed information are contained in the service manual and
the technical documentation of this device —available on the web
site: www.common.pl
14
The CPC-03 Pressure Converter
The selected information about converter are described in the Table
4.5 —“The measuring converters of the CMK-03".
The detailed information are contained in the service manual and
the technical documentation of this device —available on the web
site: www.common.pl

COMMON S.A. OPERATING INSTRUCTION CMK-03
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15
The CZAK-03 Communication and Signal Barrier
The detailed information are contained in the manual instruction and
the technical documentation of this device —available on the web
site www.common.pl
16
Optical communications interface COGUSB-03.
Detailed information contains manual instruction and technical doc-
umentation of the device available on web site: www.common.pl
17
The female, TUCHEL contact, C091D Type (to the COM1 trans-
mission port)
3. CONSTRUCTION
The CMK-03 Gas Volume Converter is a measuring and accounting instrument which fulfills the requirements of
MID Directive. The device is dedicated to operate on the measuring and reducing & measuring gas stations. It
can be used with any of the gas meter (turbine, rotor or ultrasonic) which provides information about measured
volume in the pulses.
The CMK-03 is a battery power supplied instrument with possibility to operate on the external power supply. The
installed batteries provide continuous and service less data registration for a minimum 6 years.
The CMK-03 is a volume converter of the gas Type 1. This is complete measurement system, equipped in the
pressure converters, the temperature converters, the input of pulses/volume of the meter and the algorithms for
converting the measured volume of gas to the basic conditions.
The construction of the CMK-03 has an additional inputs and outputs, which allow for a usage to the technological
purpose and to the control and measurement processes. The inputs and outputs are listed below:
control inputs LFb and LFc
Encoder input,
HF transmitter input in NAMUR standard
double ExtCPC input for external technological CPC-03 converters,
double-state, signal outputs OUT
double-state, signal inputs IN
input IN in NAMUR standard
The data reading and also the CMK-03 power supply are carried out by using three independent communication
ports in the RS-GAZ2 standard: COM1 ("Tuchel/OPTO-gas"), and COM2 and COM3.
The housing is made from the aluminum what assure durability, resistance and a high level of waterproofness —
IP66/67. The opening of the cover is a hinge with the limiter what allows for easy access to the wire clamps and
the battery unit.
The LCD display with keyboard, the port OPTO-GAZ port and the RS-GAZ2 (TUCHEL) port are located in the
device cover. There are maximum two pressure converters P1 and P2 which are built in the housing base.
The P1 Converter occurs also as an external version which is constant connected via a cable with the CMK-03.
The metal cable glands are located in the base of the housing. They are adapted for the shielded cables. This
solution raises the resistance of the device electrical circuits against the electromagnetic interference.

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The CMK-03 is equipped in the LCD display with graphical-text menu. The LCD is readable in the entire tempera-
ture range. The display backlight is supported by the additional battery which is independent of the converter
main battery.
The protection level of housing will be preserved if the conditions will be filled as listed
below:
appropriate diameters of the connection cables
correct tightening of the cable gland,
proper positioning of the gaskets and tightening of the housing cover
4. TECHNICAL DATA, USAGE CONDITIONS, MEASUREMENT INPUTS
4.1 Product code and version of the execution
Table 4.1 Code of product and versions

COMMON S.A. OPERATING INSTRUCTION CMK-03
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Table 4.2 The spare parts list
NR.
PART DESCRIPTION:
TYPE:
EXAMPLE DRAWING
1
Main battery
BAT-03 manufactured by
COMMON S.A.
2
LCD backlight battery
SL-760 Xtra manufactured by
Tadiran
Table 4.3 The examples of the CMK-03 available variants
EXAMPLES OF THE CMK-03 VARIANTS
CMK-03/x/12/-/-/0512/….
CMK-03/x/12/x/12/0512/….
CMK-03/x/e12/x/12/0512/….

COMMON S.A. OPERATING INSTRUCTION CMK-03
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4.2 Technical parameters
Table 4.4 The technical parameters
MARKINGS
meteorological markings and MID certifi-
cate number
1450 PL-MI002-1450CQ0001
Explosion proof construction
II 2G Ex iaIIB T4 Gb
markings and ATEX certificate number
1453 KDB 14ATEX0102X
conformity with norms and directives
94/9/WE ATEX:
PN-EN 60079-0:2013-03 + A11:2014-03 (EN 60079-0:2012/A11:2013 [IDT])
PN-EN 60079-11:2012 (EN 60079-11:2012 [IDT])
2004/22/WE (MID):
PN-EN 12405-1+A2:2010 (EN 12405-1:2005+A2:2010 [IDT])
energy calculation:
PN-EN 12405-2:2012 (EN 12405-2:2012 [IDT])
2004/108/WE (EMC):
PN-EN 12405-1+A2:2010 (EN 12405-1:2005+A2:2010 [IDT])
PN-EN 55016-2-3: 2010 + A1: 2010 (EN 55016-2-3: 2010 + A1: 2010)
PN-EN 55011:2012 (EN 55011:2009, EN 55011:2009/A1:2010)
OPERATING CONDITION
ambient temperature
(-25°C +55 °C)
relative humidity
max 95% In temp. 55°C, possibility of condensation of water vapor
electromagnetic environmental condi-
tions
class E2 (class of protection)
mechanical environmental conditions
class M2
environmental conditions
class O –for inside and outside room installation
HOUSING
metal
aluminum cast –pressure method
the protection level of the housing
IP66/67
dimensions (total, without terminals)
height - 190 mm, width - 170mm, depth - 70 mm
front, elevation, keyboard, display
polycarbonate or polyester 185 x 165 mm
7 keys
Graphic, backlight display 240x128
closing
cover with housings gasket on hinge. Closed with 4 cylinder bolts 4mm
grounding
clamp for ground connection stainless steel, max. cable cross-section
16mm2, cylinder bolt key size 3mm
weight
2,4kg

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THE HOUSING OF THE CPC-03e EXTERNAL CONVERTER
(variant with external p1, look at the Table 4.3)
metal
acid-resistant stainless steel
protection level of housing
IP66/67
dimension (total)
total length 90 mm, diameter 38mm
connection with CMK-03 volume con-
verter
factory mounted permanent connection. Cable length –2,5m.
POWER SUPPLY
main internal
2 sets of battery type: BAT-03 manufactured by COMMON S.A. (execution
KOD(7)=S).
life time of battery set –minimum 5 years in typical operating conditions
(detailed information –part 5.9.2)
internal for LCD backlight
SL-760 Xtra Or TL-5903 manufactured by Tadiran
external
CZAK-03 power supply unit with NAMUR which output assures EX circuit
separation / manufactured by COMMON S.A.
other power supply unit with input parameters (Un = 57,14V ; In=65mA) by
maintaining intrinsically safe parameters.
Intrinsically safe parameters –Table 4.13
resistance of the electric insulation
500V AC
WARNING!
The input circuit on the COM2 and COM3 ports contain the protective, overvoltage safe-
ty elements which secure the electrical terminals on the level approx. 90 V towards
housing.
Table 4.5 The measuring converters
P1 PRESSURE CONVERTER
(parameter under metrological control)
converter type
built-in sensor or sensor on the cable ended with thread (code 2 / Table 4.1)
terminal type
M12 x1,5 (others variants on the special order)
GAS PRESSURE MEASUREMENT RANGES FOR P1 CONVERTER
(code 1 / Table 4.1)
absolute pressure converters
3A 0,5 3 bar abs
6A 0,9 6 bar abs
17A 2,5 17 bar abs
40A 6 40 bar abs
70A 10 70 bar abs
P2 PRESSURE CONVERTER
converter type
built-in sensor ended with the M12 X 1.5 thread (code 4 / Table 4.1)
terminal type
M12 X 1.5 (others variants on the special order)
GAS PRESSURE MEASUREMENT RANGES FOR P2 CONVERTER
(code 3 / Table 4.1)
absolute pressure converters
gauge pressure converters
3A 0,5 3 bar abs
6A 0,9 6 bar abs
17A 2,5 17 bar abs
40A 6 40 bar abs
70A 10 70 bar abs
G10 0 10 kPa G
G17 0 17 kPa G
1G 0 100 kPa G
6G 0 600 kPa G
16G 400 1600 kPa G
63G 1400 6300 kPa G
t —TEMPERATURE CONVERTER
(parameter under metrological control)
converter type
built-in converter with attached PT1000 resistance thermometer class 2/3A ( ± 0,1oC)
CTA4 Type manufactured by COMMON S.A.
The thermometer is permanent connected with the volume converter via a cable. The
thermometer is marked with a serial number. The serial number is readable on the LCD
(code 5 / Table 4.1)
The connection clamps of the thermometer are secured with the sealed cover by the
user or manufacturer.
measuring range of gas tem-
perature
-25°C +65°C
thermometer cable length
to 10 m (code 5 / Table 4.1)

COMMON S.A. OPERATING INSTRUCTION CMK-03
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outer diameter of the
thermowell
6mm
CPC-03 DIGITAL CONVERTERS (EXTERNAL, SWITCHABLE)
FOR THE P3, P4 PRESSURE MEASUREMENT
converter type
The external CPC-03 digital pressure converters manufactured by COMMON S.A. (or-
dered separately)
terminal type
M20 X 1.5 thread (others variants on the special order according to the CPC-03 instruc-
tion
level of housing protection
IP 66/67
operating temperature
-25 oC to +55 oC
relative humidity
max 95% in temp 55°C
supply
external from the ExtCPC clamps
GAS PRESSURE MEASUREMENT RANGES OF THE P3, P4 CONVERTERS
absolute pressure converter
gauge pressure converters
3A 0,5 3 bar abs
6A 0,9 6 bar abs
17A 2,5 17 bar abs
40A 6 40 bar abs
70A 10 70 bar abs
G10 0 10 kPa G
G17 0 17 kPa G
1G 0 100 kPa G
6G 0 600 kPa G
16G 400 1600 kPa G
63G 1400 6300 kPa G
Table 4.6 Inputs and Outputs
LF PULSE INPUTS
(parameter under metrological control)
DESCRIPTION
LF pulse input from the index head of gas meter
parameters
maximum frequency 2 Hz,
minimum pulse durations –200ms,
compatibility with:
reed relay transmitter,
electronic, potential–free contact (open-collector, open-drain),
Wiegand type transmitter
resistance of the closed state < 50k,
resistance of the open state > 500 k
pulse value
0,01 ; 0,1 ; 1; 10 m3/imp
LFb, LFc, HF PULSE INPUTS
LFb
double-state input. The control circuit (LFbreak)
LFc
double-state input. The programmable function: counting, directional
HF
high frequency pulses input of the HF sensor. The NAMUR interface. Fmax=5kHz.
WARNING! the external power supply +8,2V is required to the COM3 port.
INx SIGNAL INPUTS
IN1,
IN2,
IN3,
IN4,
IN5,
IN6.
double-state inputs
compatibility with
reed relay transmitter,
electronic, potential–free contact (open-collector),
Wiegand type transmitter.
IN5 and IN6 are software set as a switchable to the operation as a double-state input or NAMUR
standard.
WARNING! The operating mode in the NAMUR standard requires the external power supply
+8,2V to the COM3 port
OUTx SIGNAL OUTPUTS
OUT1,
OUT2,
OUT3,
OUT4.
signaling double-state outputs –open collector. (Ui=10V, Ii=0,3A)
programmable, released by the control function or by the alarm.
Possible operating modes:
OUT2 –steering output of the odorizing unit
OUT2 –frequency output proportional to the selected parameter
OUT3 –representation of the LF input signal
OUT3 –representation of the HF input signal
ENC INPUTS
The input compatible with the CWSL–NType Encoder digital encoder manufactured by COMMON S.A.

COMMON S.A. OPERATING INSTRUCTION CMK-03
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ExtCPC INPUTS
There is a dual input dedicated to the connection for maximum two of the external CPC-03 digital pressure converters.
The input assures the power supply for P3 and P4 converters and digital data transmission to the CMK-03 (also in the bat-
tery supply working mode).
Table 4.7 Measuring counters
COUNTERS
(under metrological control)
Vm [m3] - volume counter in measuring condi-
tions
capacity and total precision
11.2 significant place
display format on the LCD
11.2 significant place
Vb [m3] - volume counter in base conditions
capacity and total precision
11.8 significant place
display format on LCD
11.3 significant place
Vbe [m3] - volume counter in emergency condi-
tions
capacity and total precision
11.8 significant place
display format on LCD
11.3 significant place
OTHER COUNTERS
E [kWh] –energy counter
Ee [kWh] –energy counter in emergency condi-
tions
capacity and total precision
11.8 significant place
LCD displaying format
11.3 significant place
Vbs [m3]= Vb + Vbe
summary counter of the base volume
capacity and total precision
11.8 significant place
LCD displaying format
11.3 significant place
Es [m3]= E + Ee
summary energy count
capacity and total precision
11.8 significant place
LCD displaying format
11.3 significant place
Table 4.8 The register of the alarms and MID interferences
MID ALARMS REGISTER
(metrological significant)
Size of the MID alarms base
minimum 256 records (max. 288)
Protection against data removing
acknowledgment with user authorization
Rotary register
the oldest data are deleting and overwriting with the
latest, only when the alarms are acknowledged and
completed
MID INTERFERENCES REGISTER
(metrological significant)
Size of the MID interferences register base
minimum 128 records (max.144)
Rotary register
the oldest data are deleting and overwriting with the
latest
Table 4.9 Data transmission
DATA TRANSMISION
communication ports:
COM1
COM2
COM3
RS-GAZ2 interface –four wire communication port with the supply line V+, GND and RS-485
standard transmission lines in the intrinsically safe execution up to 115200 bits/s.
WARNING! COM1 port is a “male” TUCHEL socket on housing.
Port OPTO-GAZ
The optical transmission interface accordant with the EN 62056-21 standard. Baud rate up to
115200 bits/s by using COGUSB-04 interface manufactured by COMMON S.A.
WARNING! COM1 and OPTO-GAZ ports are shared. The active OPTO-GAZ port blocks
transmission on the COM1 port.
WARNING !
The input circuit on the COM2 and COM3 ports contain the protective, overvoltage safety ele-
ments which secure the electrical terminals on level approx. 90 V towards the housing.

COMMON S.A. OPERATING INSTRUCTION CMK-03
16
Table 4.10 Compressibility coefficient –the calculating methods
CALCULATING METHODS FOR COMPRESSIBILITY COEFFICIENT
SGERG-88
calculating in function of
PTZ
according to PN-EN ISO
12213-3:2011
(EN ISO 12213-3:2009 [IDT])
APPLICATION RANGE (extended)
UNIT
p1
t
0,5 3; 0,9 6; 2,5 17
-23,15 +65
bar abs
°C
p1
t
6 40; 10 70
-10 +65
bar abs
°C
Hs
20 48
% mole
d
0,55 0,9
% mole
CO2
0 30 (carbon dioxide)
% mole
H2
0 10 (hydrogen)
% mole
N2
0 50 (nitrogen)
% mole
CH4
50 100 (methane)
% mole
C2H6
0 20 (ethane)
% mole
C3H8
0 5 (propane)
% mole
C4H10
0 1,5 (butane)
% mole
C5H12
0 0,5 (pentane)
% mole
C6H14
0 0,1 (hexane)
% mole
C7H16
0 0,05 (heptane)
% mole
C8+
0 0,05 (octane and higher hydrocarbons)
% mole
CO
0 3 (carbon monoxide)
% mole
He
0 0,5 (helium)
% mole
H2O
0 0,015 (water)
% mole
AGA8-92DC
calculating in function of
PTZ
according to PN EN ISO
12213-2:2010
(EN ISO 12213-2:2009 [IDT])
p1
t
0,5 3; 0,9 6; 2,5 17; 6 40; 10 70
-23,15 +65
bar abs
°C
Hs
20 48
MJ*m-3
d
0,55 0,9
-
CO2
0 30 (carbon dioxide)
% mole
H2
0 10 (hydrogen)
% mole
N2
0 50 (nitrogen)
% mole
CH4
50 100 (methane)
% mole
C2H6
0 20 (ethane)
% mole
C3H8
0 5 (propane)
% mole
C4H10
0 1,5 (butane)
% mole
C5H12
0 0,5 (pentane)
% mole
C6H14
0 0,1 (hexane)
% mole
C7H16
0 0,05 (heptane)
% mole
C8+
0 0,05 (octane and higher hydrocarbons)
% mole
CO
0 3 (carbon dioxide)
% mole
He
0 0,5 (helium)
% mole
H2O
0 0,015 (water)
% mole
K1=const
calculating in function of PT
K = 1
p1 < 1,5
-
bar abs
K ≠1
p1 < 1,5
-
bar abs
WARNING!
For K1=const.≠1 it is necessary to configure ranges of pressure and temperature (dlp1K1,
glp1K1, dltK1, gltK1) that in this ranges change of p1 and t not cause error greater than
0,25% of K1
REFERENCE CONDITIONS
Basic pressure to the volume calculation
pb = 1.01325 bar
Basic temperature to the volume calculation
Tb = 273.15 K (0°C)
Tb = 288.15 K (15°C)
Tb = 293.15 K (20°C)
Reference temperature of the combustion processes (out of the legal metro-
logical control)
T1 = 273.15 K (0°C)
T1 = 288.15 K (15°C)

COMMON S.A. OPERATING INSTRUCTION CMK-03
17
T1 = 293.15 K (20°C)
T1 = 298.15 K (25°C)
Table 4.11 The list of errors
VALUE UNDER METROLOGICAL CONTROL
REFERENCE CONDITIONS
Tamb = (+20 ± 3) °C
OPERATING CONDITIONS
Tamb = (-25 +55) °C
INDICATION
TYPICAL ERROR
LIMITING ERROR MPE
(acc. PN-EN 12405-
1+A2:2010)
TYPICAL ERROR
LIMITING ERROR MPE
(wg. PN-EN 12405-
1+A2:2010)
Vb
< 0,2 %
0,5 %
< 0,4 %
1 %
ENERGY
REFERENCE CONDITIONS
Tamb = (+20 ± 3) °C
OPERATING CONDITIONS
Tamb = (-25 +55) °C
INDICATION
TYPICAL ERROR
LIMITING ERROR MPE
(acc. PN-EN 12405-2:2012)
TYPICAL ERROR
LIMITING ERROR MPE
(acc. PN-EN 12405-
2:2012)
E
< 0,2 %
Klasa A
< 0,4 %
Klasa A
OTHER INDICATIONS
REFERENCE CONDITIONS
Tamb = (+20 ± 3) °C
OPERATING CONDITIONS
Tamb = (-25 +55) °C
INDICATION
TYPICAL ERROR
LIMITING ERROR
TYPICAL ERROR
LIMITING ERROR
p1
(abs)
0,13 %
0,2 %
measured value
(all ranges)
TBD
0,35 %
measured value
(all ranges)
p2
(abs)
0,13 %
0,2 %
measured value
(all ranges)
TBD
0,35 %
measured value
(all ranges)
p2
(G)
G10
TBD
±0,04 kPa
TBD
±0,08 kPa
G17
TBD
±0,05 kPa
TBD
±0,1 kPa
1G
TBD
±0,15 kPa
TBD
±0,3 kPa
6G
TBD
±0,2 kPa dla p < 100 kPa
±0,2 % dla p > 100 kPa
TBD
±0,4 kPa dla p < 100
kPa
±0,4 % dla p > 100
kPa
16G
TBD
±0,2 % measured value
TBD
±0,4 % measured value
63G
TBD
±0,2 % measured value
TBD
±0,4 % measured value
T
± 0,04 %
± 0,08 %
± 0,08 %
± 0,12 %
RTC clock
±3ppm
±5ppm
@ Tamb -15+55°C
±5ppm
(<0,5s/24h)
±10ppm
(<1s/24h)
The error values, which are presented in percent (%) are referred to the measured value. The temperature error
is referred to the Kelvin temperature scale.
4.3 Intrinsically safe parameters
WARNING! Hazard of the electrostatic charges.
The front cover of the CMK-03 (elevation, keyboard, display window) is a large surface
made of plastic where the electrostatic charges can be accumulated. To avoid electrify
effect and danger of discharge this surface can not be rubbed with dry materials!
The intrinsically safe parameters are determinate during the analysis of the device structure. Their values are
specified related to the worst-case of operating conditions or failure situation. The parameters are limited to the
safe levels of the indicated explosive mixture. They should not be understood as a technical reference parame-

COMMON S.A. OPERATING INSTRUCTION CMK-03
18
ters. The conformity conditions of the intrinsically safe parameters for the connected devices are presented in the
Table 4.12.
Table 4.12 The conformity conditions of the intrinsically safe parameters
CONFORMITY CONDITIONSOF THE INTRINSICALLY SAFE PARAMETERS
DEVICE A
CONDITION
DEVICE B
output voltage
Uo

Ui
input voltage
output current
Io

Ii
input current
power output
Po

Pi
power input
maximum external capacity
Co
Co Ci+Ck
Ci
Internal capacity
maximum external inductance
Lo
Lo Li+Lk
Li
Internal inductance
The dispersed parameters of the cables should be taken as:
worst case design parameters declared by the cable manufacturer
the parameters measured according to the EN 60079-14 standard or 200pF/m and 1H/m or 30H/
where the connection include 2 or 3 wires (shielded or not).
Table 4.13 Intrinsically safe parameters
PORT/
CONNECTOR
CLAMP
PARAMETERS
COM1
V+, GND, A, B
number of pins:
4, 5, 2, 1
clamps „1” –„2” („B” –„A”)
Ui=7,14V, Pi=1,2W, Li~0, Ci~0
Uo=5,88V, Io=21mA, Po=30mW, Lo=50mH, Co=100μF
clamps„1”–„GND” , „2”–„GND” („B”–„GND” , „A”–„GND”)
Ui=7,14V, Uo=5,88V, Io=83mA, Po=121mW, Lo=25mH, Co=100μF
clamps„4” –„5” („V+” –„GND”)
Ui=7,14V, Pi=1,2W, Ii=0,5A, Li~0, Ci~0
Uo=7,14V, Po=0,76W, Io=0,43A, Lo=1mH, Co=48μF
COM2
V+, GND, A, B
clamps („B” –„A”)
Ui=7,14V, Pi=1,2W, Li~0, Ci~0
Uo=5,88V, Io=21mA, Po=30mW, Lo=50mH, Co=100μF
clamps „B”–„GND” , „A”–„GND”
Ui=7,14V, Uo=5,88V, Io=83mA, Po=121mW, Lo=25mH, Co=100μF
clamps „V+” –„GND”
Ui=7,14V, Pi=1,2W, Ii=0,5A, Li~0, Ci=73nF
Uo=7,14V, Po=0,76W, Io=0,43A, Lo=1mH, Co=48μF
COM3
V+, GND, A, B
clamps („B” –„A”)
Ui=7,14V, Pi=1,2W, Li~0, Ci~0
Uo=5,88V, Io=21mA, Po=30mW, Lo=50mH, Co=100μF
clamps „B”–„GND” , „A”–„GND”
Ui=7,14V, Uo=5,88V, Io=83mA, Po=121mW, Lo=25mH, Co=100μF
clamps „V+” –„GND”
Ui=7,14V, Pi=1,2W, Ii=0,5A, Li~0, Ci=73nF
Uo=7,14V, Po=0,76W, Io=0,43A, Lo=1mH, Co=48μF
+8V, GND:
clamps „+8V” –„GND”
Ui=12,6V, Ii=0,3A, Pi=1,1W, Li~0, Ci~0
INx
IN1
IN2
IN3
IN4
IN1+ , IN1-
IN2+ , IN2-
IN3+ , IN3-
IN4+ , IN4-
clamps „IN1+” –„IN1-” … „IN4+” –„IN4-”
Ui=10V, Ci~0, Li~0, Uo=10V, Io=2,5mA, Po= 6mW, Lo=10mH, Co=20μF
IN5
IN6
IN5+ , IN5-
IN6+ , IN6-
clamps „IN5+” –„IN5-”, „IN6+” … „IN6-”
Ui=12,6V, Li~0, Ci~0
Uo=12,6V, Io=18mA, Po=57mW, Lo=20mH, Co=7μF

COMMON S.A. OPERATING INSTRUCTION CMK-03
19
OUTx
OUT1-1 , OUT1-2
(bipolar)
OUT2-1 , OUT2-2
(bipolar)
OUT3-1 , OUT3-2
(bipolar)
OUT4-1 , OUT4-2
(bipolar)
clamps „OUT1-1”–„OUT1-2”, „OUT2-1”–„OUT2-2”,
„OUT3-1”–„OUT3-2”, „OUT4-1”–„OUT4-2”
Uo=5,88V , Io=6mA , Po=9mW, Lo=50mH, Co=100μF, Li~0, Ci=0,6uF
Ui=10V, Ii=0,3A, Pi=1,1W
ExtCPC
V+, GND, A, B
clamps „A” – „B”
Uo=5,88V, Io=62mA, Po=45mW, Lo=50mH, Co=100μF, Li~0, Ci~0
clamps „A” – „GND”, „B” – „GND”
Uo=5,88V, Io=124mA, Po=91mW, Lo=10mH, Co=100μF, Li~0, Ci~0
clamps „V+” – „GND”
Uo=5,88V , Io=0,74A , Po=0,8W (summary power output of all clamps on
ExtCPC), Li~0, Ci~0, Lo=500μH, Co=100μF
HF
HF+, HF-
Uo=12,6V, Io=17mA, Po=54mW, Lo=50mH, Co=7μF
ENC
ENC+, ENC-
Uo=10,5V, Io=15mA, Po=38mW, Lo=50mH, Co=16μF
LF
LF+ , LF-
clamps „LF+” –„LF-”
Uo=10V, Io=15mA, Po=25mW, Lo=50mH, Co=16μF
Ui=10V, Ii=30mA, Pi=64mW
LFb
LFc
LFb+ , LFb-
LFc+ , LFc-
clamps „LFb+” –„LFb-”, „LFc+” –„LFc-”
Uo=10V, Io=2mA, Po=4mW, Lo=20mH, Co=16μF
Ui=10V, Ii=30mA, Pi=64mW
PT1000
clamps and cables colors:
PT-I+, PT-U+, PT-U-,,
PT-I-
lub
PT-I+, PT-U+, PT-U-,,
PT-I-
clamps PT-I+, PT-I-, PT-U+, PT-U- (between any of clamps)
Uo=5,88V, Io=54mA, Po=79mW Lo=50mH Co=63μF
5 Assembly and installation
It is absolutely necessary to follow the recommendations of this operating instruction by the installation and
connection of the CMK-03. The device should be used according to the regulation and rules concerning anti-
explosion safety.
The CMK-03 can be installed and operate in explosion hazard zone 1 or 2. The device can
cooperate with the intrinsically safe circuits on the security level “ia”or “ib”. The subgroup
conformity of the potentially gas mixture has to be maintained with the subgroup of device
circuits (IIA or IIB) and temperature T4 class.
The CMK-03 can be connect to the intrinsically safe circuits of other devices, only accord-
ingly to the safety rules of usage which are contained in the certificates and manufacturer
instructions of this devices. The conformity of the intrinsically safe parameters has to be
maintained for the connected devices.

COMMON S.A. OPERATING INSTRUCTION CMK-03
20
5.1 Connectors and outputs
Figure 5.1 The sockets positions
5.1.1 The TUCHEL port on the housing
The 5 pins TUCHEL connector is placed on the housing. The port enables to connect the power supply and to
transmit the data by using COM1 port. The pins designation is described in Figure 5.2.
It is recommended to used CZAK-03 barrier to connect the power supply to the CMK-03. The CZAK-03 is manu-
factured by COMMON S.A. (see Table 2.1 Additional Accessories).
(V+, GND) pins of the external power supply
A (D+), B (D-) pins of data transmission from port RS-GAZ2
(485 in execution EX)
FRONT VIEW OF MALE SOCKET
ON THE HOUSING
Figure 5.2 The TUCHEL connector -—“male” type socket, 5 pins, C091D type
keyboard
grounding clamp
COM1 TUCHEL port
sealing clamp
OPTO-GAZ port
cable glands
P2 pressure
converter
p1 pressure converter
cable gland of the
thermometer