Common CMK-03 Operating Instruction

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 specifi­cations 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

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

3

COMMON S.A. OPERATING INSTRUCTION CMK-03

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

4

COMMON S.A. OPERATING INSTRUCTION CMK-03

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 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 ac­cordingly 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 connected devices.

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:

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.

2.1 Transportation

The transportation should be carried out in the original packaging, which secures the device against the mechani­cal 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 de­scribed in the certificate documentation.

5

COMMON S.A. OPERATING INSTRUCTION CMK-03

The manufacturer or a recommended authorized workshops should perform warranty re­pairs 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.

WARNING !

The removing or damage of manufacturer protection seal means the loss of guarantee
and loss of intrinsically safe characteristic.

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

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

2.4 Warranty repairs

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.

2.5 List of components and additional accessories

Table 2.1 Additional Accessories

6

COMMON S.A. OPERATING INSTRUCTION CMK-03

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

7

COMMON S.A. OPERATING INSTRUCTION CMK-03

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

8

COMMON S.A. OPERATING INSTRUCTION CMK-03

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 doc­umentation of the device available on web site: www.common.pl

17

The female, TUCHEL contact, C091D Type (to the COM1 trans­mission 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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COMMON S.A. OPERATING INSTRUCTION CMK-03

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

The CMK-03 is equipped in the LCD display with graphical-text menu. The LCD is readable in the entire tempera­ture range. The display backlight is supported by the additional battery which is independent of the converter
main battery.

4. TECHNICAL DATA, USAGE CONDITIONS, MEASUREMENT INPUTS

4.1 Product code and version of the execution

Table 4.1 Code of product and versions

10

COMMON S.A. OPERATING INSTRUCTION CMK-03

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

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/….

Table 4.2 The spare parts list

Table 4.3 The examples of the CMK-03 available variants

11

COMMON S.A. OPERATING INSTRUCTION CMK-03

MARKINGS

meteorological markings and MID certifi­cate number

1450 PL-MI002-1450CQ0001

Explosion proof construction

II 2G Ex ia IIB 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 condi­tions

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

4.2 Technical parameters

Table 4.4 The technical parameters

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COMMON S.A. OPERATING INSTRUCTION CMK-03

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 con­verter

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 safe­ty elements which secure the electrical terminals on the level approx. 90 V towards
housing.

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 ( ± 0,1o C)
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 tem­perature

-25°C  +65°C
thermometer cable length

to 10 m (code 5 / Table 4.1)

Table 4.5 The measuring converters

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COMMON S.A. OPERATING INSTRUCTION CMK-03

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. (or­dered 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

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–N Type Encoder digital encoder manufactured by COMMON S.A.

Table 4.6 Inputs and Outputs

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COMMON S.A. OPERATING INSTRUCTION CMK-03

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 bat­tery supply working mode).

COUNTERS

(under metrological control)

Vm [m3] - volume counter in measuring condi­tions

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 condi­tions

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 condi­tions

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

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

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 ele­ments which secure the electrical terminals on level approx. 90 V towards the housing.

Table 4.7 Measuring counters

Table 4.8 The register of the alarms and MID interferences

Table 4.9 Data transmission

15

COMMON S.A. OPERATING INSTRUCTION CMK-03

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 metro­logical control)

T1 = 273.15 K (0°C)
T1 = 288.15 K (15°C)

Table 4.10 Compressibility coefficient – the calculating methods

16

COMMON S.A. OPERATING INSTRUCTION CMK-03

T1 = 293.15 K (20°C)
T1 = 298.15 K (25°C)

VALUE UNDER METROLOGICAL CONTROL

REFERENCE CONDITIONS

T

amb

= (+20 ± 3) °C

OPERATING CONDITIONS

T

amb

= (-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

T

amb

= (+20 ± 3) °C

OPERATING CONDITIONS

T

amb

= (-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

T

amb

= (+20 ± 3) °C

OPERATING CONDITIONS

T

amb

= (-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)

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!

Table 4.11 The list of errors

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

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-

17

COMMON S.A. OPERATING INSTRUCTION CMK-03

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

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+ , IN1­IN2+ , IN2­IN3+ , IN3­IN4+ , 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+ , IN5­IN6+ , IN6-

clamps „IN5+” – „IN5-”, „IN6+” … „IN6-”
Ui=12,6V, Li~0, Ci~0

Uo=12,6V, Io=18mA, Po=57mW, Lo=20mH, Co=7μF

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

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

18

COMMON S.A. OPERATING INSTRUCTION CMK-03

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+ , LFb­LFc+ , 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

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 accord­ingly 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.

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 anti­explosion safety.

19

COMMON S.A. OPERATING INSTRUCTION CMK-03

(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

keyboard

grounding clamp

COM1 TUCHEL port

sealing clamp

OPTO-GAZ port

cable glands

P2 pressure
converter

p1 pressure converter

cable gland of the
thermometer

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 manu­factured by COMMON S.A. (see Table 2.1 Additional Accessories).

Figure 5.2 The TUCHEL connector -— “male” type socket, 5 pins, C091D type

20

COMMON S.A. OPERATING INSTRUCTION CMK-03

WARNING!

It is obligatory to connect correctly the intrinsically safe circuits of the device. It is not
allowed to connect to the CMK-03 clamps any external devices with undefined pur­pose.

For example: the connection between the output of external power supply
(V+,GDN,A,B) with the ExtCPC output of the CPC-03 external converter may occurs
permanent device damage and loss of intrinsically safe parameters.

CABLE CONNECTORS

LFx

LF+, LF-

input of the LF pulse from gas meter index head

LFb+, LFb-

input of the control circuit from gas meter index head (LFbreak)

LFc+ LFc-

input of the LFc pulse from gas meter index head (from 2nd pulse transmitter, control type)

PT1000

PT-I+

thermometer connection clamps (details – part 5.6)

PT-U+

PT-U-

PT-I-

ExtCPC
V+

power supply outputs for an external CPC-03 pressure converter (details – part 5.6)
GDN

A

serial transmission port, to the external CPC-03 pressure converter (details – part 5.6)
B

OUTx

OUT11,
OUT1

2

control outputs OC (open collector)
bipolar outputs – polarity insignificant

WARNING!
pair connected wires (OUT11, OUT12) (OUT21, OUT22) (OUT31, OUT32) (OUT41, OUT42)

OUT21,
OUT22

OUT31,
OUT32

OUT41,
OUT42

INx

IN(14)+
IN(14)-

signaling double-state inputs (contact type)

IN(56)+
IN(56)-

signaling double-state inputs (contact type) or inputs in the NAMUR standard (configurable)

COM2,

COM3

+8V

supply voltage input for the NAMUR sensors (only COM3 port)

V+

external supply input for the RS-GAZ2 interface
GND

5.1.2 Internal clamps

The clamps are dedicated to the connection of the signals and external devices.

Figure 5.3 connectors positions – diagram

Table 5.1 Description of the CMK-03 connectors

21

COMMON S.A. OPERATING INSTRUCTION CMK-03

A

serial transmission signals of the RS-GAZ2 port
B

The CMK-03 is constructed as an intrinsically safe device. The all terminal and ports are in­trinsically safe circuits.

The general requirements for the multi-wire cable which are dedicated to the CMK-03 intrinsically safe
circuits:

 permanent installation, protected against the mechanical damages
 operating temperature range of the cables should be proper in relation to the temperature on the installa-

tion point

 minimum, radial thickness of the insulation for every wire of the cable should be not less than 0.2 mm
 dielectric strength of the “wire — ground” insulation — minimum 500 V AC (rms),
 dielectric strength of the “wire — wire” insulation — minimum 1000V AC (rms),
 wires diameter in the multi-wire cable — minimum 0,1 mm,
 the ends of the multi-wires cable need to be protected to avoid the separation of the internal twisted pairs

wires. In this case the soldering process is not enough and the ends should be protected by using the
sleeves.

 unused wire in the areas with the explosion hazard should be connected to the ground or isolated

by the connection to the terminal strips. The isolation tape is not allowed.

The all cable glands are in EMC execution and are adjusted to connection of the cable shields
in their entering place.

The intrinsically safe cables should be marked. In case of marking with the color it should be used light
blue color.

* clamps symbols A and B are also marked accordingly as D+ and D–

5.2 Cables of the intrinsically safe circuits

5.2.1 Requirements concerning the cables

The multi-wires cables of the intrinsically safe circuit and the method of their installation and connection in the
areas with the explosion hazard must be accordant to the requirements of the EN 60079-14 standard. There is
acceptable to use the cables A Type or B Type in the accordance with the paragraph 12.2.2 of the mentioned
standard.

If the wiring is outside of the explosion hazard area and it is need to connect intrinsically safe cables together with
the normal cables (intrinsically safety no required), the cables should be separated accordingly to the EN 60079­14 standard.

5.2.2 Parameters and types of the connection cables

The M12 and M16 cable grommets enter the connection cables to the CMK-03 housing. The cable are connected
to the proper clamps (Figure 5.3).

In the CMK-03 there are two types of the cable glands: M12 and M16 — a ranges of the cable glands diameter
are listed in the Table below.

22

COMMON S.A. OPERATING INSTRUCTION CMK-03

The unused cable glands should be covered by using a cylindrical elements which are made from the hard
or elastic material with the proper dimension. The gland nuts should be tighten up.

RANGES OF CABLES WIRE CROSS-SECTION

one-wire cable

0,20  1,5 mm2

cord cable with pressed con­nector sleeve with a collar

0,14  1,5 mm2

CABLE MAXIMUM LENGTH

cable type

cross-section

load

maximum length

LFx, ExtCPC

Dowolny z zakresu

-

<10m

COM1, COM2, COM3,

OUTx, INx,

1,5mm2

standard

750m

1,5mm2

full

125m

1mm2

standard

500m

1mm2

full

80m

0,75mm2

standard

370m

0,75mm2

full

60m

0,5mm2

standard

250m

0,5mm2

full

40m

0,34mm2

standard

170m

0,34mm2

full

28m

0,25mm2

standard

125m

0,25mm2

full

20m

0,14mm2

standard

70m

0,14mm2

full

10m

DIAMETER OF THE CABLE GLANDS

M12

4,5  6mm

M16

6,5  8mm

cable gland

4x M12

cable gland

3x M16

Figure.5.4 The cables entering to the housing, the dimensions of cable glands M12, M16

The cross sections of the cable wires is presented in the Table 5.2.

Table 5.2 The ranges of wire cross section of the cable wires

The maximum lengths of cables for a individual circuits are presented in the Table 5.3. The values are defined
regarding to:

 the voltage decrease of cable resistance
 the output of rated voltage from CZAK-03 power supply unit.

Table 5.3 Maximum cable length

23

COMMON S.A. OPERATING INSTRUCTION CMK-03

The inductance and the electrical capacity of the cables with defined length must be taken under
consideration in the analysis of the conformity of the intrinsically safe parameters for connected de­vices.

TYPES OF THE SHIELDED CABLES

circuit type

cable type

LFx, ExtCPC, OUTx, INx, COM1

Use only shielded cables e.g. LIYCY

COM2, COM3

Shielded cables e.g. LIYCY or unshielded cables e.g. LIYY

UNSHIELDED CABLE

cable gland J-Type

SHIELDED CABLE

cable gland A-Type

8mm

8-10mm

65mm

65mm

8-10mm

1

3

2

4

2

1

1

4

2

5

2

1

where:

 standard load means that CMK-03 is operating with active: LCD, LCD backlight, unit uC, measurement of

T and P and active transmission on one of the COM ports

 full load means that CMK-03 is operating with the active options mentioned above and additionally with the

activated read function from the Encoder and from the two external CPC-03 converters (connected to the
extCPC port).

The examples of the cable are presented in the Table 5.4.

Table 5.4 Types of the shielded cables

There is important to use the cables which are dedicated to conditions on the installation point (the earth cables
or the outdoor cables).

The cord cables (multi-wire) must be ended with the wire sleeves with an insulated collar. The sleeve should be
pressed on the all length. The preparation method of the cables is presented in the Table 5.5.

Table 5.5 Method of the cable preparation

24

COMMON S.A. OPERATING INSTRUCTION CMK-03

2

1 53

1

5

6

cable gland J-Type

cable gland P-Type (yellow elastomer)

LEGEND:

1. gland nut

2. sealing elastomer

3. sealing element which presses the cable shield

4. gland inlet screwed into the CMK-03 housing

5. sleeve

6. cable shield

WARNING!

The cable shields should be connected to the CMK-03 housing only on the grounded
side by using the cable glands. The shielded cables can not create loops, closing points
with different potentials, where could be flow equalizing currents.

1

3

5

6

6

6

1

2 3 5

5 3 2

1

6

5 5 1

25

COMMON S.A. OPERATING INSTRUCTION CMK-03

WARNING!

The housing ‘IP’ protection level will be preserved only if:

 will be used appropriate diameters of the connection cables or the covers
 cables grommets will be proper tightened,
 gasket will be in proper position
 housing cover will be tightened correctly

WARNING! The CMK-03 housing must be grounded

WARNING!

The equipotentiality of the housing grounding point must be assure with:

 the connection place of the pulse pipe to the gas meter or the gas line.
 the thermometer installation place
 the external CPC-03e converter installation place

5.3 The CMK-03 grounding

The grounding methods of the CMK-03 housing:

1. Installation bolts in the housing corners

The metal handles (CMK-03 installation sets) should be tightened to the mounting holes of the housing and
next the converter should be tighten by using them to grounded metal elements of the installation

2. Ground clamp connection

The CMK-03 effective ground connection can be assure by using the ground clamp, which is located on the
side of housing. There can be connected a single wire or multi-wire cable with cross-section up to 4mm.
The clamp is tightened with a cylindrical bolt, key size 3mm.

Figure 5.5 earth connection clamp

The additional grounding methods of the housing, which can not occur as only one earth connection are listed
below:

1. pressure converter pipe (located on the housing) is mostly connected via a steel pulse pipe with the pres­sure measurement terminal of the gas meter or piping.

2. thermometers steel pipe is electrical connected via cable shield with device housing.

3. housing of the CPC-03 External Pressure Converter is connected via cable shield with device housing.

26

COMMON S.A. OPERATING INSTRUCTION CMK-03

PIPE AND CABLE LENGTH OF THERMOMETER

thermometer pipe length

cable lengths

 45 mm
 75 mm
 95 mm
 105 mm

 120 mm
 130 mm

 140 mm
 160 mm-standard
 180 mm
 200 mm
 220 mm

 245 mm

 1,2 m
 2,5 m + standard
 4,0 m
 5,0 m

 6,0 m
 8,0 m
 9,9 m

1. thermometer probe with cable

2. thermometer frame

3. thermal conductive paste

4. rubber insert

5.4 Connection of the temperature sensor

The CMK-03 is equipped in the platinum temperature sensor (PT 1000 Class 2/3A) CTA4 Type, manufactured by
COMMON S.A. The sensor allows for the measurement and registration of the gas temperature in range -25°C 
+65°C.

Figure 5.6 The CTA4 thermometer manufactured by COMMON S.A.

The length of the thermometer pipe and the cable are presented in the Table 5.6. The maximum length of the
thermometer cable is 10 meters. The method of order is described in the Table 4.1 (code 5).

Table 5.6 Method of the cable preparation

The thermometer pipe can have electrical contact with installation of the gas line, that why there is necessary to
follow according to guidelines described in part 5.3.

5.4.1 Thermometer connection to the CMK-03 clamps.

The thermometer cables are factory connected, to clamps of the port marked as PT 1000 inside the housing. The
thermometer name plate is placed on the thermometers cable. The thermometer serial number is recorded in the
CMK-03 memory on the production phase and it is displayed on the LCD screen. The thermometer is formal
combined and identified with model of CMK-03.

27

COMMON S.A. OPERATING INSTRUCTION CMK-03

The breakdown of the manufacturers seal from the PT1000 clamps cover, does not affect
on the metrological features of instrument. It gives possibility to check periodically the
correctness of working thermometer and correctness of the input data line. The clamps
cover of the PT1000 must be properly placed and sealed with a users seal after every ser­vice activities. From this time the user is responsible for the correct connection of the
thermometer.

1. M12 tightening nut

2. thermowell

3. thermometer probe

4. seal

Figure 5.7 Cables connection of the CTA4 thermometer.

The terminal clamps are protected against the interference with the factory sealed cover.

5.4.2 Thermometer connection to the installation.

The thermometer is placed in the thermowell, which is located in the piping or gas meter. It is sealed with a rubber
gasket and secured with a tightening nut (M12 thread) (see Table 2.1, Additional Accessories).

The tightening nut is adjusted to the sealing (there is a hole for a sealing cord). The example of thermometer in­stallation in the piping is presented in the Figure 5.8.

Figure 5.8 Thermometer assembly in piping

The Figure 5.9 presents the thermometer placement in the body of gas meter.

Figure 5.9 The PT1000 thermo probes assembled in the body of CGT-02 Turbine Gas Meter

manufactured by COMMON S.A.

28

COMMON S.A. OPERATING INSTRUCTION CMK-03

example position of CKMT three way valve

P1

P2

5.5 Connection of the P1 and P2 pressure sensors

The CMK-03 has maximum two built-in pressure converters (P1 and P2 in the Figure 5.10). The connection pipe
of the converter has a threat M12x1,5 in the typical application. The available variants and the pressure ranges
are listed in the Table 4.5.

Figure 5.10 The construction of the M12x1,5 pressure connection pipe

The measuring pressure pipe, should be connected to the pressure sensor by using the pulse pipe. The connec­tion method of the pulse pipe from the converter side is presented in the Figure 5.11 (M12x5 nut, the tightening
ring, the pulse pipe — all items are available as an additional accessories — see Table 2.1).

Figure 5.11 The connection of the pressure measurement to the P1 pressure sensor

There is a CKMT three way between the point of pressure measurement and the measuring converter valve in
the typical application of the piping (see Table 2.1). The CKMT three way valve is manufactured by COMMON
S.A. This instrument allows for the inspections and checking of the sensors. The example of the installation for
the pressure connection is presented in the Figure 5.12.

Figure 5.12 The example of pressure connection by using the CKMT valve manufactured by COMMON S.A.

29

COMMON S.A. OPERATING INSTRUCTION CMK-03

WARNING!

The connection of the pressure sensors is an electrical contact between the housing and piping. Such
connection can not be understood as the “grounding connection”. The grounding methods are de­scribed in the part 5.3.

The CPC-03 can be installed and operate in explosion hazard zone 1 or 2. 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.

pressure equalizing
element

seal cord
opening

HIRSCHMANN
connector

grounding clamp
flat gasket

5.6 Connection of the external CPC-03 pressure converter

The CMK-03 allows for a reading and registration of the pressure values from two CPC-03 external, digital con­verters manufactured by COMMON S.A. (Table 2.1. Additional Accessories). The technical data of the CPC-03
converter are available in the operating instruction.

5.6.1 Mechanical installation of the CPC-03

The CPC-03 converter is dedicated to connect to the processing socket with a defined type. Typically there is a
M20x1,5 manometrical socket. The other types are available on the special order. The installation of CPC-03
requires the proper sealing.

The CPC-03 ground connection is achieved when the instrument is threaded to the grounded part of the piping,
gas meter etc. If there is no possibility to assure connection with the ground in such way, the CPC-03 housing
should be grounded by using a cable with the proper cross-section (minimum 4mm2), tightened to the marked
ground clamp on the side of housing (the detailed information are contained in the CPC-03 operating instruction).

Figure 5.13 CPC-03 converter - mechanical installation

5.6.2 CPC-03 electrical connection

The power supply and data transmission are assured by using the ExtCPC clamps of the converter.
The converters are adjusted to operation in the areas of explosion hazard, according to the marking
about explosion-proof construction.

30

COMMON S.A. OPERATING INSTRUCTION CMK-03

WARNING!

The CPC-03 converter should be connected by using the shielded cables. The cable shields should be
connected from the converter side. The preparation method of the cables is presented in the Table

5.5.

WARNING!

It is obligatory to connect correctly the intrinsically safe circuits of the device. It is not
allowed to connect to the CMK-03 clamps any external devices with undefined pur­pose.

For example: the connection of external power supply output (V+,GDN,A,B) with
ExtCPC output of the CPC-03 external converter may occur permanent damage and
loss of the intrinsically safe parameters.

WARNING!

The proper cooperation between the CPC-03 external converter and the CMK-03 is pos­sible with firmware version CPC-03 no. v. 13.11.27.08.

The CPC-03 with the older firmware will not working correctly with the CMK-03.

The connections between the converter port and converter clamps are presented in the Figure 5.14.

Figure 5.14 The connections of the CPC-03 pressure sensor to the CMK-03 converter clamps .

The clamps of the ExtCPC ports are doubled in the both terminal strips. This allows for easy, parallel connection
for two cables to the electrical same ExtCPC port.

The operating configuration is described in the part 11.2.7.

The firmware version of the CPC-03 can be checked by reading the name plate of CPC-03 in the Gaz-Modem2/3
protocol. This information is available as a “wersja prog” parameter in the DP Table. There is also possible to
check the name plate by using CCTool program — after connection the firmware version will be displayed in the
top part of the screen.

5.7 Connection of the LF input to the gas meter

The cable which provides pulses form the gas meter (carrying information about quantums of the measured vol­ume) should be connected to the LF+ and LF- clamps of the LFx port.

The polarization is not significant in working mode with the reed-relay pulses transmitter. The polarization should
be kept, in working mode with the electronic transmitter (e.g. Wiegand) with the polar OC output.

31

COMMON S.A. OPERATING INSTRUCTION CMK-03

WARNING!

The LF+ and LF- clamps should be connected only by using the shielded cables with the maximum
length to 10 meters (cable selection – see Table 5.3). The cables shields should be connected from
the side of converter. The preparation method of the cables is presented in the Table 5.5.

 LF+, LF- — the input of LF pulses from the gas meter index head
 LFb+, LFb — the control input LFb from the gas meter index head

(LFbreak)

 LFc+ LFc — the input of the LFc pulses from the gas meter index head

(e.g. second, control LF transmitter)

WARNING!

It is necessary to use the batteries according to the operating instruction. The batteries
used in the CMK-03 can be disconnect and connect in the explosion hazard zone.

Battery type: BAT-03

Manufacturer: Common S.A.

LCD display

battery

main batteries

battery handle

angle connectors for
battery connection

It is allowed to keep connection between the LF cable shield with the plug of gas meter, by following conditions:

 the shield should be disconnected (insulated) from the cable gland in the CMK-03
 equal potential should be assure between the housing of the gas meter and the volume converter

5.8 Mechanical installation of the CMK-03

The installation methods are described in the Appendix 1 – “The mechanical installation methods of the CMK-03”.

5.9 Battery

5.9.1 Main batteries.

The CMK-03 main power supply is a battery pack “BAT-03” Type (there are two installed batteries) manufactured
by COMMON S.A. The batteries are marked as follow:

The battery pack is ended with a cable which has a connector with a protection against the polarization. The
placement method of the battery cable is free, but it should not cause a tension of the cables from plugs.

The batteries are connected to the internal sockets marked as BAT1 and BAT2. The device has the battery self
detect function what means that there is an automatically detection when battery is connected or disconnected.

The batteries are installed in the springy handles inside the housing cover (Figure 5.28).

Figure 5.28 The battery installation.

32

COMMON S.A. OPERATING INSTRUCTION CMK-03

The replacement of the main battery BAT1 and BAT2 does not break the seals and the
metrological characteristic of the CMK-03.

The disconnection of the both main batteries does not cause a loss of the current and registered data.

By the CMK-03 external power supply all of the functions are using only the external power and the
main batteries are not in use.

The battery kit life-time is minimum 5 years in typical, defined working conditions which are defined as
follows:

 lack of the external supply (V+, GND)
 frequency LF = 2Hz
 ta = - 25°C
 p1 = max range value
 t = min range value
 frequency of the measurements “p1” and “t” every 30 s
 p2…p4 – lack of converters

 LCD service < 5 minutes / 24 h

 battery type approved to the usage: SL-760 Xtra or TL-5903 manufactured by Tadiran

 battery should be installed in a handle according to the polarization (+, - )

 false polarization will not cause a damage of the device or of the battery, but as result will be im-

proper work of the LCD backlight

 false battery connection will not cause a loss of the intrinsically safe parameters of the device

The replacement of the backlight battery, does not break the seals and the metrological
characteristic of the CMK-03.

The battery can be sealed with the factory seal or user seal after the replacement and after
the ending of guarantee time.

The batteries can be factory sealed or sealed by the user after the replacement and after ending of the guarantee
time.

The data are stored in a nonvolatile memory which does not require the power supply. The data saving is continu­ing till the voltage cut-off of the battery or the external power supply. There are saved all counters and data ba­ses.

The CMK-03 calculates in the real time a level of the battery usage. If the estimated battery working life time
reaches the level lower than 10%, it will be registered an alerts in the bases: “Archive”, “MID Alarms”, and
“Events”. The alerts are presented on the LCD as a text: ”Battery <10%” and “Battery<10%(MID:133)”. In
such case it is necessary to replace the battery on new.

The battery status and the estimated life time are available on the LCD on one of the MID screens:

 Etl — the number of working days till the battery discharging
 Bat — the percentage battery status

This parameters are also available in the Gaz-Modem protocol.

5.9.2 Battery of the LCD backlight.

There is a separated AA size battery which supports the LCD backlight. The battery is installed in a handle under
the device cover (see Figure 5.28). The backlight helps to read the data and operate the display in weak illumi­nated places. The backlight does not use the energy from main batteries and does not reduce their working life
time. If the CMK-03 is working on the external power supply, the LCD backlight uses only this power source and
the LCD battery is not in usage.

33

COMMON S.A. OPERATING INSTRUCTION CMK-03

The electrical intrinsically safe parameters – see part 4.33

The selection of cooperating devices must to fill the conditions listed in the Table 4.12 Condi-

tions of the conformity of the intrinsically safe parameters.

The method of cable selection is described in part:

5.2 “Cables for the intrinsically safe circuits”

WARNING!

The hazard of electrostatic charges. The front cover of the device (elevation, keyboard, dis­play window) is made of the synthetic material where can be accumulated the electrostatic
charges. This surface may not be to rub with dry materials, so as not to cause the electrify
effect and danger of discharge!

The life time of the backlight battery is approximately 80 hours of constant summary work. This time period can
be shorter if the device will operate in the low temperatures, or there is a often, long usage of the backlight.

The battery operation time is approximately 2,5 year, if the LCD will work on the battery supply mode with active
backlight during 5 minutes per day (24h). The backlight battery is not covered by the guarantee.

5.10 Safe usage conditions

The CMK-03 converter should be used according to:

 purpose with the guidelines indicated in the operating instruction
 conditions included in the certificate KDB 14ATEX0102X
 standards and rules concerning installation and intrinsically safe systems.

The connection between CMK-03 circuits (“ia” security level) with the other devices with “ib” security level impli­cates a creation of the system which is on the lower “ib” security level (including the CMK-03).

6 Gas volume conversion

6.1 Principle of the operation

The CMK-03 converter sums the gas volume based on the LF pulses in measuring conditions Vm and also
makes conversion of the gas to the basic conditions Vb based on:

 measured value of the absolute gas pressure p1,
 measured value of the gas temperature t,
 programmed gas composition or gas chemical and physical parameters,

The volume increase of gas in the measuring conditions is calculated as the product of the total number of dLF
pulses and their value “waga_LF”. In the next step the volume increase of gas is summed to the main counter:



󰇟



󰇠





 

 









   



where:

waga_LF – quantum of the volume increase in measuring conditions in relation to one LF pulse

dLF – pulses number increase

dV

– volume increase in the measuring conditions,

m

34

COMMON S.A. OPERATING INSTRUCTION CMK-03

V

– volume counter value in the previous state.

mpop

The calculations of proper parameters in basic conditions are made in case of:

 changing the gas composition/parameters
 changing the reference temperature Tb
 changing the reference pressure pb
 initialization the converting module/device

The measurement of the gas temperature and gas pressure, the calculation of the parameters in the measuring
condition and the designation of the C, K1, Z coefficients are made for every 30 seconds on the battery supply
and for every 1 second on the external power supply working mode.
Additional:

 if there is no pulses from the gas meter during time longer than period of the measurements (30 sec. or 1

sec.), a mean value of the “C” coefficient is calculated for time-period which was without pulses.

 if first pulse will come in defined time interval this causes:

 the pulse is counted to the Vb/Vbe counter with mean value of the C coefficient correction.
 the mean value of the C is initialized by the current value of Cc coefficient.
 every next pulse is summed with new value of the C coefficient in defined time interval.

This rule of operating provides a higher, dynamical precision of the calculation, in the situation when the gas pa­rameters are changing between LF pulses from the gas meter (a small flows).

The all counters (Vm, Vb, Vbe, E, Ee) are updated for every incoming LF pulse and are refreshed on the display
in every pulse or in every 1 second, regardless of the type of power supply mode (battery or external).

The volume increase in the basic conditions is calculated as product of the dVm counter increase in the measur­ing conditions and the C correction coefficient, and then is summed to the main counter:



󰇟



where:

C – coefficient of the volume conversion

dV

– volume increase in the basic conditions

b

V

– value of the volume counter in previous state

bpop

The Zb compressibility coefficient in the basic conditions and Z compressibility coefficient in the measuring condi­tions are determinate by one of the available calculating methods which is implemented in the converter.

CONVERSION PTZ – for algorithms: SGERG-88 and AGA8-92DC.
The C correction coefficient is calculated on the base of formula:

CONVERSION PT – for constant, programmable value of K1 coefficient

󰇠





 

 

 







 





 





















where:

K1 – relative compressibility coefficient

 







 





















35

COMMON S.A. OPERATING INSTRUCTION CMK-03

Figure 6.1 CMK-03 operating rules — flowchart

6.2 Algorithms

The CMK-03 converter has implemented a calculating methods as follows:

 SGERG-88
 AGA8-92DC
 “K1=const”

For the SGERG-88 method there are incoming data (which define gas mixture) as follows:

 detailed molar gas composition (37 component), or
 detailed volumetric gas composition (37 component), or
 gas parameters (Hs, d, CO2 (molar), H2 (molar)).

For the AGA8-92DC method there are incoming data (which define gas mixture) as follows:

 detailed molar gas composition (21 component), or
 detailed volumetric gas composition (21 component)

For the “K1=const” method there is no necessary to define the gas composition. The K1 coefficient is equal with
the Z/Zb ratio. The conception of this method is to use the CMK-03 on a bio-gas station or others stations where
the gas components exceed applicability ranges of the implemented calculating methods in the converter, and
operating pressure does not exceed determinate value.

If there is known a gas specification, there is possible to define the relative compressibility coefficient based by
means of:

 algorithm implemented in the converter (if it will be a solution),
 different proper calculating method,
 built-in “biogas calculator” in the CCTool software.

The such defined value of the relative compressibility coefficient, may be use to the volume correction.
The “K1=const” method has a limits which were defined to restrict the calculating error to the value not bigger

than 0,25%. In case of:

36

COMMON S.A. OPERATING INSTRUCTION CMK-03

 K1 = 1, gas pressure has to be lower than 1.5 bars abs.
 K1 = const. but K1 ≠1 , gas pressure has to be lower than 11 bars abs.

It is necessary to define the permissible measuring limits of gas and temperature, to observe the error caused by
K1 constant value in relation to the changing values of the temperature and pressure. The observed error should
not be greater than 0,25%.

To define the mentioned limits should be used the dedicated parameters: Limit t for K1=const<>1 and Limit p1
for K1=const<>1 (available in the CCTool configuration software).

6.3 Bio gas configuration

The CMK-03 converter is a MID device. The algorithms such as AGA8 or SGERG-88 (approved according to
the standard) have a limits of the incoming parameters value. This limits do not allow to define a value of the
compressibility coefficient for gases and their mixtures which are out of range of the approved applicability. Ac­cordingly to it, there is provided the programming option (MID – metrological controlled) of the constant relative
K1 compressibility coefficient.

The configuration on the bio gas working mode:

 the K1 coefficient can be programmed on value K1=1, on a gas stations where operating pressure  1,5

bars abs and there are unknown details of the gas composition. It can be set by using LCD or CC Tool
software. Additionally the converter should contain the programmed value as follows:

 correct Hs heat combustion value to the proper energy indication. The Hs heat combustion value os-

cillates typically for bio-gas in ranges 15…21MJ/m3 (4,1…5,8 kWh/m3).

 correct d relative density value allows for proper calculation of the mass stream and W Wobby’s num-

ber.

 the K1 coefficient values K1<> and additional measuring limits for pressure “p1” and temperature “t ” can

be determinate by using a “Bio-Gas Calculator” in the CCTool program on a gas stations where the oper­ating pressure is on level  11 bars abs, and there are known the details or parameters of the gas compo­sition. The determinate values should assure an error caused by p1 and t on the level not greater than +/­0,25%. The Bio Gas Calculator designates also the value of Hs heat combustion and the value of d gas
relative density. There is also possible to enter this values manually.

The K1=const<>1 determination procedure by using the CCTool program:

1. connect with the device

2. select bookmark “Gas composition”

3. select “Bio gas calculator”

4. enter the gas composition or parameters

5. enter the average values of the gas pressure and gas temperature in measuring installation according to
the example as below:

 if the temperature is in typical range from 20°C to 30°C, the temperature value should be set on 25°C
 if the over-pressure range in the installation is from 60 to 140 mbar (6 to 14 kPa) the pressure value

should be set on 100mbar (10kPa) over the average atmospheric pressure e.g. 110 kPA abs.

6. select “Calculate K1”. It will be determine 3 values of the K1 coefficient.

a. K1 which is corresponding with the average values of p1 and t,
b. K1’ which is corresponding with the bottom pressure range and the top temperature range (conditions

for maximum value of the K1 coefficient)

c. K1’’ which is corresponding with the top pressure range and the bottom temperature range (conditions

for minimum value of the K1 coefficient)

If there is fulfilled condition: K1’<0,25% and K1’’<0.25% for the selected gas and initially set ranges of
the p1 and t, the converter can be programmed by using “set” button. After this operation there are set pa-
rameters as follows:

 K1=const algorithm,

37

COMMON S.A. OPERATING INSTRUCTION CMK-03

Examples of the ‘Bio-gases’ compositions (volume shares)

example 1

example 2

methane – CH4 51,89%
carbon dioxide – CO2 35,75%
nitrogen – N2 12,37%
oxygen – O2 0,01%\

heat of combustion – Hs 20,62 MJ/m3
5,727 kWh/m3

relative density – d 0,9420

gas temperature approx. 20 … 30°C

gas pressure approx. 60… 140mbar (6… 14kPa)

above atmospheric pressure
gas flow approx. 150m3/h

carbon dioxide – CO2 57,2%
methane – CH4 35,0%
hydrogen – H2 4,0%
hydrogen sulfide – H2S 3,0%
oxygen – O2 0,5%
nitrogen – N2 0,3%

 gas composition (information),
 gas parameter: Hs, d, mCO2,
 calculated K1 value,
 determined limits for t and p1

The set parameters should be sent (record) to the CMK-03.
There are deviations of the K1’ and K1’’ values for selected gas and initially set ranges of limits for p1 and t.

If those deviations are bigger than +/- 0,25% in comparison to the middle value of K1, the limits of p1 and t
should be narrow down till the values which correspond with the real conditions on the operating station or it
should be selected the mean values of p1 and t. The limits value which are suggested by the program are very
wide.

The t temperature is typically on level approx. 20°C or 30°C for a bio-gas but program assumes initially t value
from 10°C to +40°C. The limits are adjustable and can be set as they are on the real existing gas installation.
If the set limits will be to narrow, it can cause that the volume values will be counted in to the emergency counter
in case of the t crossing over the programmed limits.

If there are exist the designated gas parameters (Hs, d) mentioned in delivered gas specification, it is possible to
enter them manually.

The Hs heat of combustion value is presented in a different units (MJ/m3 or kWh/m3):

1 [MJ/m3] = 3,6 * 1 [kWh/m3]

1 [kWh/m3] = 1 [MJ/m3] / 3,6

Table 6.1 Examples of the ‘bio-gases’ compositions

7 The energy conversion

The energy conversion is based on the formula:

󰇟󰇠 

where:

 E
 dE – calculated energy increase

The energy increase calculation and the counter actualization are made for every LF pulse incoming from the gas
meter.

 the numerical coefficient 3,6 which is a result of the units conversion:

 Hs – heat combustion value included reference T1 temperature
 dV

– the value of energy counter from the previous state

pop

󰇟󰇠 󰇟󰇠 

– volume increase value in basic conditions

b

 , where   󰇛󰇜  





󰇟

󰇠 



󰇟󰇠





󰇟

b



󰇟



󰇠





󰇠

38

COMMON S.A. OPERATING INSTRUCTION CMK-03

15

0 1 2 3 4 5 0

1 2 3 4 5 6 7 8 9

The unit MJ/m3 is default for Hs parameter in the converter. The Hs value conversion per unit kWh/m3 is follow­ing:

1 MJ/m3 = 3,6 * 1 kWh/m

Important! The algorithms which calculate the value of Hs heat combustion, take into consider the T1 temperature
(parameter) as a reference temperature of the combustion process. The T1 parameter is typically equal 25°C
(298,15 K) and is configurable.

3

8 Metrological marking, protection seals, name plates

8.1 Metrological marks – Seal 1 and Mark IV

The unique type, self-adhesive labels are used as a metrological seals. The labels are made of the special,
holographic material with a laser burned mark according to the pattern presented below. Seals are highly adhe­sive, durable and resistant to environmental conditions. By the attempt of interference they remain permanent
mark – word “VOID” on the token off seals foil. There is impossible to place again once removed seal.

scale 2:1; real size: 10 x 20 mm

Figure 8.1 Pattern of the metrological marking

Figure 8.2 View of proper metrological mark

Figure 8.3 view of broken metrological mark

The marking label is placed on the front surface of device after the primary verification – see Figure 8.4

scale 2:1; real size: 20 x 20 mm

Figure 8.4 patter and view of primary verification marking

8.2 Manufacturer protective seals – Seal 2

The manufacturer protective seal is placed as a type of fragility seal.

scale 2:1; real size: 20 x 20 mm

Figure 8.5 Pattern of the manufacturer protective seal

39

COMMON S.A. OPERATING INSTRUCTION CMK-03

Example of the “MID” metrological plate
The two last numbers which are located in a rectangle field
after M letter, identify the year of converter primary verifica­tion. In this case there is number ‘15’
The p1 and p2 pressure ranges are corresponding to the
version of execution

Example of the metrological plate with data and “KOD” bar

code

The fields such as: “serial number”, “date of production”,

“code of product” contain the information which identify

every unit of the CMK-03

The CTA4 thermometer name plate
The thermometer is metrological combined with the converter

in phase of the primary verification. The name plate is locat­ed on the cable.

The numbers which are printed after “CTA4” symbol, specify

the thermometer parameters according to the CODE(5).

It is possible to use equivalently manufacturer seals with a different, approved pattern.

8.3 User protective seals – Seal 3

The CMK-03 construction predicts the places dedicated for a user protective seals (see Figure 8.13). User is obli­gated to place the protective seals after device installation. They should be placed after control of the device me­chanical installation and electrical connection what should be done accordingly to this operating instruction and
other safety rules.

8.4 Marking of name plate

The label pattern and the name plates are presented below:

The “MID” plate is placed on the device front and “KOD” plate on the top side. Plates are protected with the met­rological marks (Fig 8.6 and Fig. 8.7).

Figure 8.6 MID plate – placement Figure 8.7 “KOD” plate - placement on housing

The plate position may be slightly different from presented above. The “KOD” plate may be placed on the front,
next to “MID” plate.

40

COMMON S.A. OPERATING INSTRUCTION CMK-03

The name plate of the CPC-03e p1 external converter
The CPC-03e pressure converter is metrological combined

with the CMK-03 in phase of the primary verification.

TYPE OF PROTECTION

SEALING SYMBOL

primary verification mark
(Initial Verification)

Mark I.V.

metrological protective mark

Plomba 1

manufacturer seal

Seal 2

user seal

Seal 3

Damage of any of the above protective marks results as follows:

Figure 8.9 The positioning and sealing of the CPC-03e name plate

8.5 Diagram of sealing inside instrument’s housing

The seals localization inside the CMK-03 housing is presented in the Figure 8.10.
There are three types of the mechanical protective marking.

The metrological marks are placed on the instrument after:

 phase of primary verification
 metrological certification according to approved type
 admission to an accounting functions.

The manufacturer seals protect against an unauthorized access to the operating and maintenance areas of de­vice.

The user seal should be placed on the device as a protection against access and interference into the measuring
signals or technological functions such as: LF signal input clamps, PT1000 temperature sensor input clamps, the
hosing closing place after finished installation, the pressure or temperature connection places.

41

COMMON S.A. OPERATING INSTRUCTION CMK-03

- a loss of the credibility characteristic as a measuring–accounting instrument

- a loss of the manufacturer guarantee and intrinsically safe characteristic

- signal of the unauthorized interference in the measurement system

42

COMMON S.A. OPERATING INSTRUCTION CMK-03

Figure 8.11 The sealing inside the CMK-03 housing

43

COMMON S.A. OPERATING INSTRUCTION CMK-03

FV:

2.35

-

2.7.3

Firmware Version – software for technological part

SV:

1.4

-

1.2

Software Version – software for metrological significant part

CRC:

B0ADC36A

-

BDBB2F94

CRC – the counted control sum from the parts of metrological

significant programs

The volume converter which is under control of the metrological law must have the
SV software version and CR control sum, which are conformed with the certificate of
type test data or future supplementation to the certificate.

ALARM

CODE
ALARM MESSAGE

ALARMS REASON - DESCRIPTION

COUNTING

TO

Vbe

REGISTERED PARAMETERS

PERMANENT ALARMS (CONTINUING IN TIME)

0

p1 out of range

overflow of the p1 pressure measuring range

YES

p1, Vb

1

t out of range

overflow of the t temperature measuring range

YES

8.6 Internal software identification

The CMK-03 internal software is divided on two parts.
The metrological part is significant for the measurement result and is checked and approved during a laboratory

tests of certification process. It is marked with the SV symbol, the number of version and the CRC control sum.
The technological part is not combined with the converter main functionality. This part has no affect on the meas-

urement result. It is out of the metrological control and can be develop and modify by the manufacturer according
to his Quality Management System. The technological part is marked with the FV symbol and the number of ver­sion. The information regarding the software version are presented on the one of MID displays.

The firmware update of the technological part may be performed by the manufacturer service or authorized manu­facturer representative on the production and operation stage. The update does not require to remove the metro­logical seals and does not change the metrological properties of device. The firmware update requires authoriza­tion with the user password (the password is settable in the menu).

The update process is recorded every time in the internal “Events” register.

9 MID alarms

9.1 Principle of operation and list of alarms

The CMK-03 controls the correctness of values for all parameters incoming to the volume correction algorithm,
both measurement results and configurable algorithm parameters in a real time.

If there is an overflow of the converter measuring ranges, or an overflow of the applicability range or a change in
the metrological parameters which affect on the metrological result, then it occurs as follows:

 alarm occurrence signal by flashing the icon on the top bar of the display main screens
 the alarm registration with parameters in the MID Alarms register.
 stopping of the volume counting to the Vb counter (in case of alarms and permanent overflows)
 start of the estimated basic volume counting to the Vbe emergency counter.

Table 9.1 List of MID alarms – metrological significant

44

COMMON S.A. OPERATING INSTRUCTION CMK-03

ALARM

CODE
ALARM MESSAGE

ALARMS REASON - DESCRIPTION

COUNTING

TO

Vbe

REGISTERED PARAMETERS

t, Vb 2 Alg. Z range exceeded

overflow of algorithm applicability range of the Z com-
pressibility coefficient designation.

YES

p1, t, Z, , Vb

3

p1 transduc. failed

damage or lack of the p1 pressure converter

YES

p1, Vb

4

t transduc. failed

damage or lack of t temperature sensor

YES

t, Vb 5 Subst. val. K1 alarm

overflow of algorithm range what causes with lack of the
algorithm solution (to calculation is is used the K1 substitute
value)

YES

p1, t, K1, Vb

6

p1 subst. val. on

authorized user has enabled the p1 alternative value (to
check measuring track procedure)

YES

p1, p1zast, User, Vb

7

t subst. val. on

authorized user has enabled the t alternative value (to
check the measuring track procedure)

YES

t, tzast, User, Vb

TEMPORARY ALARMS

128

Vb count. overfl.

Vb counter has reached maximum value and has started to
count from 0 value

NO

130

Conf. changed

authorized user has changed configuration of the metrologi­cal significant parameters

NO

USER, Vb

131

Usage > 70%

MID alarms register is filled in over 70 % (unsigned alarms
and/or on-going alarms)

NO

Vb

132

Database full

MID alarms base is full in 100%. The counting is continued
to the Vbe. There is impossible to change the configuration
of MID parameters. The acknowledge is necessary for fur­ther converter working process.

YES

Vb

133

Alarms acknowled.

authorized user has acknowledged the alarms

NO

User, Indeks ZMS, Vb

134

Battery < 10%

it remains less than 10% of the main battery estimated life
time

NO

Etl, Vb

135

New program

authorized user has updated the firmware

NO

FV, SV, CRC

The MID alarms register has a capacity for a minimum 256 records, which are stored in the nonvolatile
FLASH/FRAM memory. The MID alarms base is a rotary register what means that during saving operation the
oldest records are deleted and overwritten with the new entries.

The every record of MID Alarms Register is presented on the display and it contains:

 ZM record unique index
 alarm code and short alarm message (e.g. “(1) – p1 range overflow”)
 data and time of the alarm recording (for temporary alarms)
 data and time of the alarm beginning and end (for permanent alarms)
 registered parameters – values of the presented figures which are stored in the moment of alarm occur-

rence

 confirmation symbol –  – if it is executed

The deleting of the oldest alarms is possible only when the following condition are respected:

 the all alarms (records) are acknowledged in the oldest sector
 the all permanent alarms are completed in the oldest sector

If the MID alarms data base is filled in 100% then occurs a limited work possibilities of the converter – in such
situation the volume is counted to the Vbe emergency counter and to the Ee energy counter. The possibility of the
configuration parameters changing is locked. Restore to fully functionality will occur after ending and acknowl­edgment of the permanent alarms.

45

COMMON S.A. OPERATING INSTRUCTION CMK-03

9.2 Signaling, authorization and alarms acknowledgement

The every new alarm which is stored in the MID alarm register, causes the appearance of the flashing
icon on the top bar of main display screens. This means the occurrence of new, un-acknowledged alarms.

The alarm acknowledgment requires an authorization — the selection of the user account and the password.
The correct log-in operation causes the alarm acknowledgment from the oldest till latest. It will be also recorded
an information about the acknowledgement execution with the number of user account and ZMS index of the last
acknowledged alarm.

It is possible to acknowledge permanent, opened alarms (still on-going).
If icon is active (flash constantly without pulsing), it means that the all alarms are acknowledged, but the

alarm conditions still occur (at least one of the permanent alarms is still open).
The signaling MID alarms icon is disable, if the all alarms are acknowledged and all permanent alarms are ended.
The alarm conditions are stopped.

The login time maintenance is equal 3 minutes and is counted form the last user activity on the operating display
(except of the “Light” button). After this period of time a user will be automatically logged out.
The logout operation follows also:

 after manually LCD display switching off what occurs after the multiple pushing ESC button
 after LCD activity time running out — this parameter is configurable in the option: SettingsLCDAct.

time.

The login status is presented as a “Log:0” symbol on the bottom bar of the display, where 0 means number of the
logged user.

The login continuation status does not occur on the remote control working mode (Gaz-Modem 2/3 protocol
communication channels). In this case the authorization is required by every transmitted modification or acknowl­edgement.

Local Acknowledgement
The option is available in the LCD menu: Main Menu Archive  MID Alarms  Acknowled.

Remote Acknowledgement

The DP Table contains parameters:

 “ZM index” – an unique index of the last registered MID alarm
 “ZMS index” – an unique index of the last acknowledged MID alarm

The modification and recording of the “Index ZM” parameter on the value 0 (zero) occurs an acknowledgment of
the all alarms. The correct authorization is required.

9.3 Operating principles in the Vbe emergency conditions

If there is p1 pressure overflow greater than permissible measuring range but the converter is still working in the
possible measuring ranges (indicates the value), then volume estimation follows to the Vbe emergency counter
based on the p1 actual value.

If there is p1 pressure overflow greater than measuring possibilities of the converter, or converter is damaged and
does not response with the numerical value, then volume estimation follows to the Vbe emergency counter based
on the p1zast alternative value. The p1 value is presented on the MID screens with the substitute value and
graphical symbols which are described in the Part 11.1 LCD menu structure.

The edged value of the measuring range or the information NaN with the proper status is displayed on the screen
Value measurement (‘p1m’ parameter from DP Table) in the menu: Main Menu  Measure  Press.P1.

If there is t temperature overflow bigger than applicability range of the calculating algorithm, and indication is still
in the converter range, than volume estimation follows to the Vbe emergency counter based on the actual indica­tion of the t temperature converter.

If there is a t temperature overflow greater than converter measuring possibilities, or it occurs a damage of sensor
or temperature converter, than volume estimation follows to emergency counter based on the tzast alternative
value. The results presentation is analogical as in case of the p1 pressure.

46

COMMON S.A. OPERATING INSTRUCTION CMK-03

SYMBOL OF PARAM­ETER IN DP Gaz­Modem 3

SYMBOL ON LCD

NAME OF PARAMETER

impLF

LF weight

LF pulse value

Tb

Tb

base temperature

SymCfg

Simulation

activation of simulation for alternative values P1 and T

Tzast

Tzast

alternative value of gas temperature

P1zast

P1zast

alternative value of gas pressure

K1zast

K1zast

alternative value of K1 coefficient

algorytm

Algorythm

algorithm type for a calculation of compressibility coefficient

CFG2

Algorythm data

Type incoming data for an algorithm (parameters and, compo­nents)

CFG1

Gas comp.

type of the components concentration share in a gas mixture (by
mole and by volume)

CH4

CH4

methane

C2H6

C2H6

ethane

C3H8

C3H8

propane

n-C4H10

n-C4H10

n-butane

i-C4H10

i-C4H10

i-butane

n-C5H12

n-C5H12

n-pentane

i-C5H12

i-C5H12

i-pentane

If the calculating algorithm will find:

 uncorrect gas composition / gas parameters out of the applicability range
 p1 pressure out of the applicability range
 t temperature out of the applicability range
 an overflow of the indirect parameters calculated value,

but there is still an algorithm solution, than the volume estimation follows to the Vbe emergency counter based on
the K1 coefficient value, which is calculated by means of this algorithm.

If there is no algorithm solution (by a selected calculating algorithm), the volume estimation follows to the Vbe
emergency counter based on the K1zast alternative value.
In case of the K1=constant working mode, the volume estimation to the Vbe counter and emergency conditions

will occur if:

 for K1=const=1  after p1 pressure overflow (p1 > 1,5 bar abs), or t temperature out of the converter

range -25°C  65°C,

 for K1=const<>1  after p1 pressure overflow or t temperature out of the programmed limits “Limit p1 for

K1 = const <> 1” and Limit t for K1 = const <> 1” (the parameters of the bottom and top limits: dlp1K1,

glp1K1, dltK1, gltK1 are available in CCTool software; in Gaz-Modem 2/3 protocol and in DP Table).

All of the overflows, which cause an emergency conditions, are registered in the “MID Alarms“ and signalized by
the occurrence of flashing icon on the top bar of main MID screen.

10 MID integrations (configuration changes)

10.1 The operating principle and parameters list

The modification of the configuration parameters results with a record saving to “MIDregist.” interference regis­ter. The saved record contains the parameters combination and their changed values. In a Table 10.1 are shown
the parameters which affect on the measurement result and also the parameters which are saved to the interfer­ence register.

Table 10.1 Parameters recorded in the interference register

47

COMMON S.A. OPERATING INSTRUCTION CMK-03

neo-C5H12

neo-C5H12

neo-pentane

C6H14

C6H14

n-heksane

C7H16

C7H16

n-heptane

C8H18

C8H18

n-oktane

C9H20

C9H20

n-nonane

C10H22

C10H22

n-dekane

C2H4

C2H4

ethylene

C3H6

C3H6

propene

i-C4H8

i-C4H8

i-butene

cisC4H8

cisC4H8

cis-2-butene

C4H8

C4H8

isobutene

1-2C4H6

1-2C4H6

1,2-butadiene

1-3C4H6

1-3C4H6

1,3-butadiene

1-C5H10

1-C5H10

1-pentene

C5H10

C5H10

cyclopentane

C6H6

C6H6

benzene

C7H8

C7H8

toulene

CH3OH

CH3OH

methanol

H2

H2

hydrogen

H2O

H2O

steam

H2S

H2S

hydrogen sulfide

CO

CO

carbon monoxide

He

He

helium

Ne

Ne

neon

Ar

Ar

argon

N2

N2

nitrogen

O2

O2

oxygen

CO2

CO2

carbon dioxide

SO2

SO2

sulphur dioxide

AIR

Air

air

Hs cfg

Hs

heat of combustion

d cfg

D

relative density (configurable)

CO2 cfg

mCO2

molar proportion of carbon dioxide (configurable)

H2 cfg

mH2

molar proportion of hydrogen (configurable)

10.2 Signaling, authorization and alarm acknowledgment

If it will be change any parameters of data, which have affect on a measurement result and this change will be
authorized via user password, the converter will record a temporary alarm in MID alarms register with code: “130”
and message “configuration change”.

This operation will cause the occurrence of flashing icon on the top bar of display main screens. There is
require to acknowledge this alarm by an authorized user.

11. Local service

11.1 LCD menu structure and main MID screens

The CMK-03 is equipped in the LCD graphical screen with a backlight and an adjustable contrast. The display is
operated by using the 7 buttons keyboard which allows for an information scrolling or parameters configuration.
The main buttons functions are listed below:

ESC – exit to upper level, cancel of changes

< – scrolling / switching left

˄ – scrolling / switching up
˅ – scrolling / switching down

48

COMMON S.A. OPERATING INSTRUCTION CMK-03

Vm – volume counter in the measuring conditions.
Counter must be set on the value accordant to the gas meter counter
(description below)

Vb – gas volume counter in the basic conditions (value after calculation)
Vbe – gas volume counter in the basic conditions when occurrence the

emergency conditions

E – energy combustion counter
Ee – combustion emergency counter in emergency conditions

p1 – gas pressure (absolute). Below are listed: operating ranges and

converter serial number.
t – gas temperature. Below are listed: operating ranges and converter

serial number.

Algorithm – actually set calculating algorithm of the compressibility coef-
ficient and a type of the gas composition (molar / volume or from parame­ters)

Alg. status – calculating method status (description in farther part of the
operating instruction)

pb; Tb – basic conditions 1.01325bar ; 273.15K
C – coefficient of the conversion to the basic conditions
Z – compressibility coefficient in the measuring conditions
Zb – compressibility coefficient in the basic conditions
K1 – relative compressibility coefficient Z / Zb

the percentage gas com­position, and displayed
the all gas components
and the gas coefficients

impLF – set LF pulse value
Etl – estimated converter operating time on the battery set, when occurs

a constant working conditions

Bat – percentage batteries status
SN – converter serial number
FV – firmware version of the technological part
SV – software version of the MID metrological part

> – scrolling / switching right

ENT – enter to lower level, acceptation of changes

ϙ – screen backlight

The main screen displays the basic accounting values as follows:

The main indication of the measurement such as: volume counter in the basic conditions, and others indications
and significant parameters from metrological point of view, are displayed on the several main screens which are

marked with icon (named as MID screens). The scrolling between the further MID screens is possible by
using < > :

49

COMMON S.A. OPERATING INSTRUCTION CMK-03

CRC – control sum of the MID software part

ALGORITHM

CODE

DESCRIPTION

INTERRUPT
K1 CALCU­LATION
K1 == K1zast

SGERG – 88

0x0000

correct calculations

NO

0x0001

error of gas composition

YES

0x0002

lack of solution

YES

0x0004

gas pressure out of range for selected method

NO

0x0008

gas temperature out of range for selected method

NO

0x0010

heat of combustion out of range for selected method

YES

0x0020

relative density out of range for selected method

YES

0x0040

molar proportion of CO2 out of range for selected method

YES

0x0080

molar proportion of H2 out of range for selected method

YES

0x0200

lack of solution – WirB

YES

0x0400

lack of solution – WirC

YES

0x1000

input data conflict

NO

0x2000

calculated molar proportion of N2 out of range

NO

0x4000

N2 + CO2 out of range

NO

0x8000

conflict of result for N2

NO

0x0000

correct calculations

NO

The presentation of the measuring range overflow and an usage of the alternative value instead of p1 and t is
shown on the screen by using symbols “!” and “#” as follows:

sign “=” correct measurement value
flashing sign “= / !” value from the converter is out of measuring range, processing alarm
flashing sign “# / !” lack of the value, system alarm, used alternative value
sign “#” simulation activated, used alternative value

The example screen with presented overflows:

The symbols which used for the calculated K1 coefficient:
sign “=” correct value
flashing sign “= / !” value out of measuring range, process alarm
flashing sign “# / !” lack of value, system alarm, used alternative value

The information about the Status.alg. status of operating algorithm is presented on the third MID screen. There
are two possible states “OK” or “ERROR” with a proper error code. The error codes of the algorithm are shown in
Table 11.1.

Table 11.1 Calculating algorithm – error codes

50

COMMON S.A. OPERATING INSTRUCTION CMK-03

0x0001

error of gas composition

YES

0x0002

lack of solution

YES

0x0004

gas pressure out of range for selected method

NO

0x0008

gas temperature out of range for selected method

NO

0x0010

heat of combustion out of range for selected method

NO

0x0020

relative density out of range for selected method

NO

0x0040

molar proportion of CO2 (carbon dioxide) out of range for selected
method

NO

0x0080

molar proportion of H2 (hydrogen) out of range for selected method

NO

0x0100

molar proportion of N2 (nitrogen) out of range for selected method

NO

0x0200

molar proportion CH4 (methane) of out of range

NO

0x0400

molar proportion of C2H6 (ethane) out of range

NO

0x0800

molar proportion of C3H8 (propane) out of range

NO

K1=const.

0x0000

correct calculations

–

0x0004

gas pressure out of range for selected method

–

0x0008

gas temperature out of range for selected method

–

The occurrence of the status alg. value different from the value 0x0000 causes an alarm
conditions and starts the volume counting to the Vbe counter.

Qm

LF

– current gas stream in the measuring conditions. The LF index means
that the value determination is based on the low frequency transmitter
pulses. If it will be determinate on basis of the high frequency transmitter, it
will be displayed HF index.

Qb – current gas stream in the basic conditions
dVbsh – increase Vbs counter in the current hour
eph – estimated dVbsh hourly volume increase in the current hour

Vbs – summary Vb and Vbe volume counter
Es – summary E and Ee counter of the combustion energy

The defined error codes are presented in hexadecimal notation. The status alg. value may be a bit sum of the
error codes. The occurrence of a several errors at the same time is presented as a sum of the proper error codes.

For example: the errors such as:

 error of a gas composition (0x0001)
 error “H2 molar proportion (hydrogen) is out of range” (0x0080)

The status value (concerning these two errors) will be presented as (0x0081).

The screens with a technological parameters, which are not cover by the metrological control may be selected by
using buttons ˄ ˅. After this the logo of COMMON S.A. will appear instead of the icon in the top left

corner of screen.

51

COMMON S.A. OPERATING INSTRUCTION CMK-03

inputs INx – current status of the inputs 1 – 6 (contact / NAMUR)
outputs OUTx – current status of the double-stage outputs 1, 2, 3/LF, 4/HF
inputs LFx – current status of the pulse inputs of converter

Measure – current measuring values are displayed on the several screens
Archive – scrolling of the registered data base
Settings – the configuration view and changing the operating parameters
Clock – actually time and clock settings
Name plate – converter name plate

Press.P1 and Press.P2 – concern the internal pressure converters
Press.P3 and Press.P4 – concern the additional, external pressure con-

verters ( CPC-03) which are connected to ExtCPC clamps

Temp.T – gas temperature converter
Temp.Tamb – housing (environment) temperature converter

current p1 pressure value, used to the calculations

current converter p1m pressure measured value

The ENT button is to be select to enter the main menu, from any level of the above described screens. The main menu allows
for an access to farther parameters and converter functions.

11.1.1 Menu measure

Menu contains detailed information about:

 measured values which has received from the internal and external measuring converters
 converters parameters
 converters settings

52

COMMON S.A. OPERATING INSTRUCTION CMK-03

average value in the registration period

minimum and maximum measured value in the current gas day

converter measuring ranges

set alarm limits

converter serial number

The menu of the others measurements looks analogical. If there is no converter e.g. P2 or P3 or P4 is inactive, it
will be displayed a message “Measurement inactive” after entering in their menu.

The every measurement has parameters Status. The values and status meanings of the measuring parameters
are listed below:

 “Measurement data”  correct result of the measurement
 “Range overflow – process alarm”  over crossed converter measuring ranges; but there is numer-

ical measurement result; type: processing alarm

 “Range overflow – system alarm”  over crossed converter measuring ranges, or the converter is

damaged, there is no measuring result; type: system alarm

 “Constant of algorithm”  if there is activation of the substitute value

There is displayed also a field “Info” (below of the field “Status”).
The “Info” can receive a values and meanings as follows:

 “Communication error with the converter ”  in case of the temporary communication error

53

COMMON S.A. OPERATING INSTRUCTION CMK-03

Periodical – data registered according to the set period of time
(default 10 minutes)

Daily – data registered at the end of every gas day
(default set at 6:00 a.m.)

Events – events list and alarms which have been registered by the con-
verter

MID alarms – events list and alarms which have affect on the accounting-
measuring parameters (MID)

MID regist –register of interferences and a recording of changes in the
configuration of the parameters

Records – records quantity stored in the counter memory
Last index – unique index of the last record. If the converter memory is full

the number of records will stop to increase (it will be oscillate near maxi­mum value) and the last index will be increment further.

˄ – the oldest data
˅ – the youngest data

 “Limit overflow”  overflow of the set measuring limits

11.1.2 Menu Archive

Menu contains the all values registered in the converter memory.

The operating rule and alarms acknowledgment are described in the part: MID alarms and MID interferences
(configuration changes).

The Periodic menu:

The selection of the ˄ or ˅ button causes the data base display appropriate from the oldest or from the newest
saved data. Data may be scrolled one by one (default set). The pushing ENT button during the scrolling, will
switch step of scrolling between 1, 10, 100 e.t.c. It is marked with “v” sign above the record digit. This informs
which digit is actually scrolled from the number of records.

The selection of the < or > causes the switching between parameters registered in record. There is a line below
where are presented the DP Table description and DP Table parameter number of the Gaz-Modem 2/3 protocol.

The browsing of the “Daily” menu is based on the same rule as a browsing of the “Periodical”

54

COMMON S.A. OPERATING INSTRUCTION CMK-03

after selection of Events menu, the first displayed information is an
amount of events in the counter, the selection ˅ or ˄ causes a display
of the youngest or the oldest saved event.

the buttons ˅ ˄ are used to switching between another events, the

ENT button changes step of switching, the buttons < > display another

parameters which are saved in the record.

menu.

Events, MID alarms, MID register

According to the requirement of the MID directive the CMK-03 has two additional data base registers: MID alarms
and MID regist. (register of MID interferences). The functionality of these registers have been checked and
metrological approved.

The MID alarms subject under control and must be read and acknowledged (confirmed). If there is no place for
new MID alarms, the old alarms can be removed after acknowledgment from the converter memory.

If the base will fulfill with the unacknowledged alarms, the converter will lock a possibility of further base volume
counting to the Vb counter. It will start to count to the Vbe counter, what will last until alarms reading and their
acknowledgement.

The acknowledgment of the MID alarms can be done both manually and via telemetric connection by means of
respectively function of the Gaz-Modem 3 protocol. The manual acknowledgment can be done from the menu
level: Archive  MID alarms. Details are described in part 9.2 and in text below.

The MID register is a type of configuration changes register for accounting parameters. The acknowledgment is
not required.

The Events register contains an all information from the MID alarms and the MID register. There is also infor­mation about additional alarms, technological events, functional events, which are available locally and remotely
via Gaz-Modem 2/3 protocol.

The browsing of the Events and alarms data menu.

55

COMMON S.A. OPERATING INSTRUCTION CMK-03

There is an saved information about the user who has made the
changes.

There is an example of event which is no MID type: the status change
of the signaling input. The event is “on going” what is marked with

icon in position of the event ending time.

There is an example of event which is already ended. It occurs infor­mation about time of event ending, index has not been changed.

The browsing of the MID alarms data base

menu dedicated to the alarms base browsing — it works similar to the events browsing

menu dedicated to the alarms acknowledgment

menu dedicated to the active alarms browsing

If there is at least one unconfirmed alarm in the converter, it is signaled by flashing icon on the top bar of the
screen. If the menu Acknowled will be selected, it will display:

56

COMMON S.A. OPERATING INSTRUCTION CMK-03

The selection of the < button causes a MID alarm confirmation. The acknowledgment can be done only by au­thorized user. The description of the log in procedure is contained in part 11.2.2. After the successfully acknowl­edgment it will be displayed screen with a confirmation message as below:

There is the interference register of the accounting parameters. The register contains information
about the user, who has made modification and about recorded parameters after changing.

11.1.3 Menu Clock

Menu clock contains two screens which display: actually time, data with day of the week and dates
of the time changes (summer / winter).

57

COMMON S.A. OPERATING INSTRUCTION CMK-03

The RTC clock and internal calendar is very precise. Typical error does not exceed 5 ppm, what means
that is smaller than 0,5 s / 24h. It assures stable operation and there is not necessary to synchronize
time in the device. The data, which are registered in many devices are correlated between each other.

If the option of the time “auto change” (summer / winter) is disabled, it will be not displayed the date which informs
about time changing. It will be displayed a message “Auto.change: NO”

11.1.4 Menu Name plate

Menu name plate contains 3 screens with information about: serial number, firmware version and
manufacturer information.

11.2 Menu Settings

11.2.1 Configuration after installation

The device requires a configuration of basic operating parameters such as:

 Vm counter status, according to the indication of the gas meter index head
 to record the Vb counter status in the protocol (not modifiable)
 LF pulses weight
 the gas meter constant, if it will be used HF input for stream determination
 gas composition (to configure based on the parameters or on fully gas composition. It depends

from selected calculating method)

 the calculation algorithm of the compressibility coefficient (SGERG-88, AGA8-92DC, K1=const)
 to control date / time and automatic time changing mode
 the registration period and start of the gas day
 users: their passwords and permissions

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COMMON S.A. OPERATING INSTRUCTION CMK-03

COM ports – transmission parameters
Logs – registration period and start of the gas day
Gas meter – gas meter parameters
Measure –measuring converters configuration
Limits – limits of the measuring figures
Gas – the gas composition and gas parameters

Simulation – alternative values of the measuring figures
Outputs – double-states outputs
Inputs – double-states inputs

LCD – activity time, display contrast, units of the displayed figures
Clock – current data / time, time change summer / winter

 to control and acknowledge current MID alarms
 transmission parameters on theCOM1/OPTO-GAZ, COM2 or COM3 ports

Additionally can be configured:

 the name of a gas point or a gas station
 the ranges and limits of the Qm / Qb streams and other measuring parameters

 the LCD format of displayed data — it depends on the ranges of applied converters

The converter manual configuration can be done in menu: “Settings”. There are all functions collected on two
screens which are dedicated to set the operating parameters.

The parameters entering method is common for all of the entered figures. The method has been described in this
instruction on the basis of configuration for serial ports parameters.

11.2.2 Parameters setting – general information

The entered parameters may be shared on two basic types:

 type list — where is possible to select one of the available options
 the parameter type number, where can be set a numerical value.

The type list parameter can be only a selection from the list of the available options such as ON/OFF, YES/NO, or
baud rate. It is set by using ˄ ˅ buttons, which scroll the list and should be confirmed with ENT button.

The type number parameter is an integer or a real number with defined the range (e.g. the Gaz-Modem address
or Vm counter). In this case an every digit is set (scrolled) by using ˄ ˅ buttons, sometimes with decimal point.
The another digit is selected to the edition by using < > buttons. This buttons move a cursor on the position of
next digit. The entire number is set by means of this method, and it should be confirmed with ENT button.

The entered modification can be canceled in every moment by using ESC button.
The converter parameters are grouped according to the menu structure. If there is a changing only in one of the

parameters, this parameter is marked with a small star sign on the left side of its name. The selection of ESC
button, displays an enquiry regarding to the confirmation for entered changes.

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COMMON S.A. OPERATING INSTRUCTION CMK-03

ESC button cancels every entered changes

ENT button confirms entered changes

˄ ˅ buttons allow for user selection

ENT button confirms the user selection.

The entering of user password:
“USER-000” has the default password “0000”.
The password is not a number. It need to be enter the four zeros.

˄ ˅ buttons set the value of the selected chart

< > button navigate between password charts.

 > button moves indicator to the next chart
 < button occurs to go back and cancel current position

ENT button confirms the entered password

This message informs about wrong password

< button causes step back to log in window.
ESC button allows to enter the password again or cancel the operation

This message informs about proper user log in procedure.

< button causes the return to parameters setting.

11.2.3 Log-in

The modification of the selected parameter requires to log in and user authorization. This is not necessary
if the all parameters concerning the COM1 and OPTO-GAZ ports. There is no separated login function. The login
screen is displayed, when there is no logged user:

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COMMON S.A. OPERATING INSTRUCTION CMK-03

This message informs about no required permissions for a logged user to
modify the parameter from the selected parameter group

ESC button allows for log out operation. It will be displayed a question

regarding the log out operation, what secures a user before unplanned log
out.

If there was no logged user, the screen will disable immediately.

The default password of USER-000 is set as four zeros: 0000.
It is recommended to change the default password to avoid unauthorized access to con-

verter configuration!

There are a few permission types which allow to modify a parameters group. The users settings and their permis­sion level are described in the part 0.

The user log on time is maintained during 4 minutes when it has been made by using keyboard. This time period
is counted since the last pushing of any keyboard keys (except the backlight button). After 4 minutes it will occur
automatically log out.

The screen is active and the backlight is maintained during the login time period.
The log out operation is required to log in for another user.

While a user is logged, there is displayed message: Log:x, where x indicate a user number: 0..3. The CMK-03
may have defined 4 users (USER-000 — USER-003). It may be assigned a different permissions levels and indi­vidual passwords for every of users. The password may contain a number from 4 till 7 digits.

11.2.4 Parameters setting of the COM ports

The menu COM ports allows to set as follows:

 the physical COM ports parameters
 MODBUS addresses
 GazModem3 protocols addresses.

The CMK-03 is hardware equipped in three serial ports. The COM1 and OPTO-GAZ ports share one physical
serial COM1 port, but have possibility for an independent configuration of the transmission parameters. The
placement of the OPTO-GAZ head will deactivate the COM1 port.

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COMMON S.A. OPERATING INSTRUCTION CMK-03

The physical parameters with the settings recommended for the telemetric:
Baud rate can be selected from list: 300, 600, 1200, 2400, 4800, 9600,

19200, 38400, 57600, 115200 bits/s.

Parity: NONE, EVEN, ODD
Data bits: 8, 7
Stop bits: 1, 2

GM address: the GazModem protocol address is a number from the range

1..65534 (default setting depends from the serial number and the port
number)

MODBUS addr.: the MODBUS RTU protocol address is a natural number
from the range 0..247(default 1).

MODBUS conf.: option with submenu to configure the sequence of the
sent bytes.

˄ ˅ buttons switch a parameter

ENT button causes a parameter selection and an edition
˄ ˅ buttons allow for selection of the required value (when the parameter is

being edited)

ENT button confirms the entered value

EN button confirms the set value and returns to the parameters list.

˄ ˅ buttons select another parameter to modification

* symbol is located on the left side of the modified parameter  value has

been changed but is still unsaved

GM address and MODBUS address:

 ˄ ˅ buttons set the individual digits value
 < > buttons switch between digits.

ENT button confirms the entire set address

The COM1 port is located on the converters housing (TUCHEL socket) and COM2 and COM3 ports are located
on the internal terminal strips.

The COM1 and OPTO-GAZ ports parameters may be modified without authorization but the parameters of the
COM2 and COM3 ports after logging. The parameters setting looks the same for every port. If there is selected
the menu: Settings  COM ports  COM1 it can be seen the COM1 port setting, which are displayed on two
screens.

Please notice that the default setting are marked with bolded letters in the further, below description.

The baud rate is selected from the list by using ˄ ˅ buttons. The digits of the GM address are set and selected to
the edition by using ˄ ˅ and < > buttons.

It need to be selected ENT button to change the parameter. After this the parameter value will be displayed in a
negative-view as selected to the edition.

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COMMON S.A. OPERATING INSTRUCTION CMK-03

ESC button ends the parameter configuration and occurs the screen dis-

playing with question regarding the changes saving.

 ESC button cancels the all entered changes
 ENT button confirms and saves changes.

Swap DWORD – swap places of double words
Swap DWORD – swap places of double-bytes words
Swap DWORD – swap places of bytes.

The parameter may accept values YES or NO. The proper settings combi­nation allows to find any sequence, which is presented in the last line dur­ing the setting time:

8-7-6-5-4-3-2-1 (default setting)

Log period – the log period of periodically data base. The value is an

integer divider of the number 60, so that assure that always one probe is
related to full clock-hour. The values may be selected from the list: 1, 2, 3,
4, 5, 6, 10 (default setting), 12, 15, 20, 30, 60 minutes.
Gas day – an hour of the gas day change. There are an integer values
from the range 0…23. Default set on value 6.

Vm – the gas volume counter in the measuring conditions. It should be set
on the value which is accordant to the gas meter index

iLF – LF pulses weight from the gas meter. Value can be selected from the
list: 0.01, 0,1., 1.0 (default set), 10.3 m3/imp

iHF – the gas meter HF constant ; the real value expressed in imp/m3
Source Qm – the calculation signal source of the temporary gas stream. It

is possible to select from two options: LF (default set) and HF/LF (auto­matic mode)

MODBUS config. – this function is using to configure a sequence of sent register bytes. Some drivers or systems
can expect a another sequence and it can cause problems with configuration. The proper sequence should be
selected in experimental way. The simplest way is to read the MODBUS Table from the register with constant,
known value (e.g. pressure ) and to find a correct combination.

11.2.5 Registration

Menu contains a setting combined with the data base:

11.2.6 Gas meter

The menu contains all of parameters which are combined with the gas meter operating with the

volume converter.

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COMMON S.A. OPERATING INSTRUCTION CMK-03

Dr – gas piping diameter 50 (default set)
Qmin – minimum gas meter stream 0.00 (default set)
Qmax – maximum gas meter stream 0.00 (default set)

LF pulses value – this value is permanent written on the name plate of gas meter. The value is expressed in a

cubic meters per pulse, sometimes it is presented as pulses per cubic meter.
HF coefficient – is entered if the gas meter is equipped in a HF transmitter. The coefficient value should be

permanent written on the gas meter. The value is expressed in pulses per cubic meter. The correctly programmed
coefficient value is necessary for the proper Qm

stream determination and to control the error limit of the gas

(HF)

meter HF constant. It is necessary to remember about supply for the NAMUR circuits and the converter external
power supply (properly clamps +8V and +V on terminal strip COM3) to assure proper work of the HF input and
the HF transmitter.

The necessary conditions to measure the temporary gas stream based on the HF signal are listed below:

 signal source of the Qm stream should be set on HF/LF options (automatic mode)
 HF transmitter should be correctly connected
 proper power supply for NAMUR circuits on the clamp +8V and +V
 proper external power supply to the converter clamps +V and GND

If the one of the above conditions will be missing, the gas stream will be automatically calculated on the LF pulses
basis.

The Qm min and Qm max parameters correspond with the gas meter measuring range. If the ranges will be set
on zero (“0.00”), it will be disabled the registration functionality of the technological alarms regarding to the ranges
overflows.

11.2.7 Measure

The menu contains settings of additional pressure converters. The CMK-03 standard execution has
one measuring track of the gas temperature (t) and the gas pressure (p1). There are internal or external
converters, which are permanent connected via cable with the CMK-03. These converters are set in their produc­tion process and are not configurable due to their accounting character.

The CMK-03 may be additionally equipped as follows:

 internal P2 pressure converter.
 up to 2 external CPC-03 pressure converters as the P3 and P4 measurements.

The measurements time periods of the gas temperature (t) and pressure (p) depends from the power supply
mode:

 battery

The measurements are executed every 30 seconds, according to the configured reading interval
time period — ‘RdCpcInt’ parameter in the DP Table.

 external power supply

The measurements are executed every 1 seconds, according to the configured reading interval
time period — ‘RdCpcAux’ parameter in the DP Table

If there are used the gauge pressure converters it may be entered the offset for the pressure value. The unloaded
converter, should indicate a zero (0) value. If the indication is a little different from zero by an atmospheric pres­sure, it is possible to reset the converter – the offset entering. The offset entering can be done manually or au­tomatically.

Menu Measure:

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COMMON S.A. OPERATING INSTRUCTION CMK-03

Measure P2 – configuration of P2 converter
Measure P3 – configuration of P3 converter
Measure P4 – configuration of P4 converter
Meas. period – setting of the reading time periods for an external pres-

sure converters
Communication P3, P4: information about physical transmission pa-

rameters for ExtCPC port and connected to it CPC-03 converters.

The relative converter (gauge) has available functions:
Reset – there are two options:

 Execute — the function reads current pressure value and set it

as actual offset.

 Cancel — the function removes offset.

ESC button confirms changes after offset setting.

Actual offset – manually offset setting.
Current value – information about converter current value

In case of the absolute converter (abs) is displayed message and the
reset options are not available.

Press.P3 and Press.P4 menu are analogical to the Press.P2 menu.
Active – NO/YES – the function actives the ExtCPC port and reads data

from the external CPC-03 converters according to set time period.
GM Address – Gaz-Modem address. The default CPC-03 address is

always set as five last digits of the serial number.

Reset and Act. offset – described above
Current value — information about current value read from the converter

Meas. period — menu of the reading time period. The default values:
Battery – 30 seconds

Ext.power – 1 second.

The CMK-03 operates with the CPC-03 external converters with baud rate on level 38400 bits/s. The
CPC-03 converters baud rate should be set on mentioned value by means of dedicated configuration
program (e.g. CCTool) .

WARNING!

The proper operation between the external CPC-03 converter and the CMK-03 volume con­verter is possible from firmware version: CPC-03 nr v.13.11.27.08

The CPC-03 with older firmware will be not operate properly with the CMK-03

If there is an enter to the menu Measure P2, Measure P3, Measure P4 and there is active the absolute pressure
converter, the measuring period accelerates automatically to 1 second.

The CPC-03 firmware version is written in the converter name plate. It can be read in the Gaz-Modem 2/3 proto­col or as an available parameter “wersja prog” in the DP table.

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COMMON S.A. OPERATING INSTRUCTION CMK-03

Limits P – pressure limits setting
default set on zero (0); are disabled

Limits T – gas temperature limits.

default set on zero (0), are disabled

Limits Q – Qm and Q gas streams limits.
default set on zero (0), are disabled

Limits dVbsh and eph – counters limits of the hourly increases (to re-

duce the hourly consumption — “gas guard” function)

dVbsh1, dVbsh1, dVbsh1

There are 3 thresholds of the dVbsh hourly increase limit. The increase
of the volume summary counter in the basic and emergency conditions
from the beginning of the current clock hour.

The limits overflow occurs a alarms recording in the eph1, eph2 data
bases.

It is possible to set 2 limits of the eph estimated volume hourly increase.
The dVbs volume increase value estimated at the end of hour is based
on the dVbsh current usage from the beginning of the hour and current
Qb stream value.

The limits overflow will occur a alarms recording in the eph1, eph2 data
bases

estimation time– 0min/0…10min
Estimation time = 0 min — there is a disabled function of increase esti-

mation in the relation to dVbsh1 limit
“Estimation time” + “dVbsh1 limit” = “Gas guard” function
The both functions create the “Gas guard” function with the time predic-

tion on the set numbers of minutes. The dVbs volume increase value is
estimated on base of the current dVbsh usage from the beginning of the
hour and the current Qb stream value. The estimation time is set in the
“estimation time“ function.

If edVbsh estimated value is greater than programmed dVbsh1 limit it will
be recorded the proper alarm in the data base.

11.2.8 Limits and "gas guard” function

There is a menu of the limit settings.
The Limits are dedicated to

 overflows registration (information is recorded in the Events)
 registration of the double state outputs (OUT) activation — if such option has been previously defined.

To use the “gas guard” functionality as the control signal for the external automatic systems it is to be pro­grammed selected OUT outputs. The OUT output should be activated with selected alarm, settable in the menu
Outputs. The alarm list is shown below:

 [56] dVbsh1 limit exceeded
 [57] dVbsh2 limit exceeded
 [58] dVbsh3 limit exceeded
 [59] eph1 limit exceeded
 [60] eph2 limit exceeded

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COMMON S.A. OPERATING INSTRUCTION CMK-03

The OUT2 output is dependent from the prediction of the overflow alarm
concern the set limit with the programmed estimation time.

Alg. settings – algorithm settings for the calculation of compressibility
coefficient

Gas parameters – the physical gas parameters: can be entered instead
of the gas composition

Gas comp. – percentage gas composition

Algorithm – the algorithm selection; possible settings: SGERG-88,

K1=const, AGA8-92DC
Alg. data – components/parameters: components are calculated from

the percentage gas composition: based on the entered parameters:

pb – basic pressure (1,01325 bar)
Tb – basic temperature (0, 15, 20°C)
T1 – reference temperature for the calculation of the heat combustion (0,

15, 20, 25°C)
Gas comp.– molar/volume; information regarding to the entered per-

centage gas composition: molar or volume?

K1 subs. – compressibility coefficient alternative value , default set on

1.0

Gas parameters:

Hs – heat combustion
d – density in the basic conditions
mCO2 – molar participation of the carbon dioxide
mH2 – molar participation of the hydrogen

 [66] next dVbsh1 limit exceeded (with prediction function – an overflow will occur in “n” minutes)

The example:

If the estimated increase values will start to decrease after an over crossing the limits and the values will fall down
below the limits, then the alarms will be ended and the OUT output which was activated by this alarm, will be
switch in the inactive state.

The “Gas guard” function works in the same way both on the battery and on external power supply.

11.2.9 Gas

The “Gas” menu is a programming functions for the gas parameters. The gas parameters are nec-

essary to the calculation of compressibility coefficient. Menu consists of a three functions:

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COMMON S.A. OPERATING INSTRUCTION CMK-03

The percentage gas composition settings.
There is an implemented ‘reset’ function (two options NO/YES) which
reset all of the components values.
While entering there is displayed the sum of the actually entered compo­nents and their difference to 100%. The components sum has to be equal
100%.

P1 simulation – P1 pressure simulation settings
T simulation – T temperature simulation settings

Enable: NO/YES — activation / deactivation of the:

 pressure simulation

 converter operation with the P1repl substitute value

P1repl – P1repl. value setting
P1m – the current pressure value measured by the converter.

Enable: NO/YES –— activation / deactivation of the

 temperature simulation

 converter work with the Trepl substitute value

Trepl – Trepl. value setting
Tm – current temperature value measured by the converter.

11.2.10 Simulation

There are settings of the compressibility coefficient of Trepl temperature and P1repl pressure sub-

stitute values. The substitute values are used when there is no measurement result (states such as: measuring
ranges overflows or converter damage). The calculated volume is counted to the Vbe emergency counter.

There is possible to activate manually the substitute values. This functionality allows for the periodical check­ing the quality of temperature and pressure measurements in the converter which is in usage. The following con­ditions should be assure in case of the p1 pressure converter:

 to program P1repl pressure substitute value (e.g. value which is close to pressure value at the actual mo-

ment in the piping).

 to set Enable: YES. From this moment the CMK-03 will count the volume to the Vbe counter and the re-

spectively alarm will be recorded in MID alarms and Events data bases.

 to connect a calibrator to the CKMT three way valve and to set a lever in the proper position what will con-

nect p1 converter with the calibrator.

 the current pressure measured value can be observed on the screen in P1m position. If there is defined

control pressure value it is possible to observe an indications from the pressure converter.

WARNING!

the selection of the pressure or temperature simulation on the battery working mode, causes auto­matically acceleration of the execution period to 1 second. This status is kept until to switch off the
display backlight or until to exit from the simulation settings menu.

 the CKMT 3 way valve should be leave in the proper position after finishing of the control measurement

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COMMON S.A. OPERATING INSTRUCTION CMK-03

The measurement of t temperature or p1 pressure is covered by the control of the metrologi­cal law. There is no possibility to adjust the converter indications in the device which is in
usage. The CMK-03 is sealed with the metrological marks after the Primary Verification.

The converter is equipped in the 6 double-state IN inputs.
Inputs IN1…IN4 are always Type ‘Contact’ (dedicated to the operation

with “potential free” connectors Type: ‘Contact’, ‘End-contact’ or ‘Open­collector’.

Inputs IN5 and IN6 can be configurable as ‘Contact’ Type or ‘NAMUR’
Type

There are two configuration options for the Inputs ‘Contact’ Type

Act. inputs – YES/NO – an activation of the input and alarm registration
Polarity – (CLOSED / OPEN).

 ‘Closed’ activates the alarm in case of short circuit of input.
 ‘Open’ activates the alarm in case of electrical opening of input

There is presented a physically Current state of the circuit in the line
below

Inputs 5, 6 — there are two options of the inputs standards

 CONTACT — default set

 NAMUR — it is necessary to provide an external power supply

of the NAMUR circuits and converter power supply (clamp +8V
and V+ on terminal strip COM3)

 the option: Enable: set as “NO” in the P1 simulation menu. The converter will return to the normal working

mode with a normal measuring period.

The above method is analogical in case of the temperature control. There is possible as follows:

 to observe the indications of the temperature measurement at the moment of manually temperature set

(the thermometer is placed in the calibrator, in the reference temperature field).

 to control the thermometer resistance which is placed in the reference temperature field after cables dis-

connection of the PT1000 (the manufactured, security seal has to be removed)

 to control the converter indications by using the calibrator/simulator of the PT1000 thermometer in the 4-

cables measuring mode.

The CMK-03 converter assure an accuracy of measurements with the limiting error in the acceptable MPE range
during all entire operating time.

The actions described above are only a control checking, which can be contained as a recommendation in the
Manual and Maintenance Instruction of the measuring stations.

11.2.11 Inputs IN

There are settings of the double-state signaling inputs.

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COMMON S.A. OPERATING INSTRUCTION CMK-03

The input activation and polarity setting of the IN5 and IN6 inputs is ana­logical for the NAMUR operating mode as for the ‘Contact’ Type operat­ing mode.

There are two options available:
Open NAMUR – YES / NO – the alarm is detected and registered when

there is a breaking of the electrical circuit of NAMUR transmitter/input
Clos. NAMUR – YES / NO – the alarm is detected and registered when

there is a short circuit of the electrical circuits of NAMUR transmitter/input

There are four double-state OUT outputs ‘Open-collector’ Type.
The configuration should be started from output selection.
There is possible as follows:

 to activate the output
 to set the output polarity
 to select activation alarm
 to activate ‘LF bypass’ or ‘HF bypass’ function.

Act. outputs – YES / NO; activation / deactivation of the output function­ality

Polarity – (CLOSED / OPEN) – the selection of the output polarity (if the
function is active).
“CLOSED” — the short circuit of output clamps on the moment of logical
output activation (e.g. overflow of the pressure limit).
Option can be used for signal negation (e.g. to cause the output open
circuit if there is an overflow alarm of the set volume increase.

Alarm – (0) alarm number which causes the output activation.
There are presented in the lines below as follows:

 Desc. — alarm description

 State — the current output status

If the selected alarm is active , the output status will be conform with
polarity setting.

Example:

 OUT1 output enabled

 the polarity of activated output  closed what means normally

open circuit.
In case of the p2 limit overflow, the OUT1 output circuit will be closed
during a all time of the alarm.

There is a LF bypass function in the OUT3 output. If this option is active
(set on: YES) the current status of LF input will be the same on the
double-state OUT3 output. This signal can be used for an external au­tomatic systems. The activation of the LF bypass function does not
affect on the incoming LF signal and its counting and converter operat­ing.
If there LF bypass function is activated, the alarms function does not
work and are unavailable on the OUT3 output.

11.2.12 Outputs (OUT)

There are settings of the double-state signaling outputs.

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COMMON S.A. OPERATING INSTRUCTION CMK-03

There is HF bypass function in the OUT4 output. If this option is active
(set on: YES) the current status of the converter HF input will be the
same on the double-state OUT4 output. There is also necessary to
provide the proper external power supply to the COM3 port (V+ and
+8V). This signal can be used for an external automatic systems. The
activation of the ‘bypass’ function does not affect on incoming HF signal
and its measurement.
If the HF ‘bypass’ function is activated, the alarms function does not
work and are unavailable on the OUT4 output.

Vbs prop. – YES / NO. Menu Settings  Outputs  OUT1
The default setting (NO) deactivates the function. If the user want to acti­vate the pulse output (proportional to the Vba increase), the Vbs.prop
parameter need to be set on: YES.
The changes should be saved.

There will be activated 2 next parameters:
Imp. period – 1000ms pulses will be generated with the selected

period. fullness coefficient is equal 50%. The possible selection of the
period as follows: 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800,
2000ms.
Imp. weight (pulse value) – 1.00 m3 the value setting of the output
pulse.
The pulse will be generated with every cycle of volume increase value,
which is defined on the OUT output.

The possible range of programmed weight – any number in the format
XXXX.XX m3

WARNING!

The pulse period and the pulse value of OUT1 output should be set accordingly to the real
occurring basic gas streams (depending from: size of gas meter, pressure, temperature),
so as the OUT1 output will be able to generate an pulses proportional to the Vbs, between
next incoming pulses from the gas meter (the volume increases).

If the Vbs volume increase is faster than possibility of pulse generation, the CMK-03 will buffer on­going the information about surplus of pulses which need to be generate and develops them succes­sively in the form of the cyclic pulses on the output. The all outstanding pulses will be generated if
the stream value will decrease.

11.2.13 Odorizing unit control, OUT1 output proportional to the Vbs

The OUT1 output can generates pulses and this function can be used to control of the gas odorizing
unit. The generated pulses have programmed parameters which are proportional to the Vbs increas­ing summary basic volume (Vbs = Vb + Vbe).

The polarity setting (CLOSED / OPEN) is available in the output configuration. The alarm settings are not im­portant. The alarms do not interfere (even if was set) on the output status (configured as the output proportional to
the Vbs).
If the Vbs increase is greater than set pulse value, it will be generated the number of pulses (t ype integer) on the
output. This number results of the multiple pulse value contained in the Vbs increase value.

The used algorithm provides an effect of the unlimited buffer — it will be not missed any of the pulses which
should be generate.
The odorizing unit control of the output which is proportional to the Vbs increase operates on the same rules both
on battery and on external power supply. The functionality is maintained also for the LF and HF signal source of
the gas meter.

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COMMON S.A. OPERATING INSTRUCTION CMK-03

Act. time – activity time in the battery working mode
Contrast – display contrast

P1…P4 Unit – selection of the pressure unit. Available units: kPA, MPa,
psi

P1…P4 Format – format of the pressure value (the number of digits be-
fore point and after point)
The unit format should present 5 or 6 significant digits of the measured
value.

t Unit – unit of gas temperature. Available units: °C, K, °F, °R
tamb Unit – unit of the housing temperature. Available units: °C, K, °F, °R

t Form. – format of the gas temperature value (the number of digits before

point and after point)
tamb Form. – format of the housing temperature value (the number of

digits before point and after point)
The unit format should present significant digits of the measured value.

users list

11.2.14 LCD

The LCD settings such as: contrast, activity time of the display, unit format of the measured figures.

11.2.15 Users

The user setting menu:

 user passwords
 user permissions to modify the converter parameters

72

COMMON S.A. OPERATING INSTRUCTION CMK-03

The “USER-000” (default) user is active with password “0000” (default). This
user can not be deactivated by other user both from the local level and from
the authorized level. It is impossible to disable the ‘USER’ and ‘Firmware’
permissions of the USER-000.

USER-001, USER-002, USER-003 – users are inactive (default).
The first activation of them is possible from the authorization level by the
USER-000.

PASSWORD – password modification requires user login and double enter­ing of the new password. The password contains 4-7 digits.

Setting of the user permissions:

COM2 – parameter connected with the transmission of COM2 port
COM3 – parameter connected with transmission of COM2 port
Clock – parameter connected with time, date, time changing
User – users activation, changing of the password and permissions

Setting of user permissions:

Firmware – firmware upgrade
Device – technological parameters of device
Limits – limit values of alarms
Parameters MID – parameters under metrological control

Data – setting of the calendar data
Time – setting for current time of RTC clock
Auto. change – disable / enable for automatically time switching sum-

mer/winter. Available values: YES / NO.

11.2.16 Clock

The clock menu: date, time, time auto change (summer/winter).

73

COMMON S.A. OPERATING INSTRUCTION CMK-03

12. Extended functionalities settings

The CMK-03 volume converter has extended functionalities which are used in the special issues. These functions
are not presented on the display and are available in the Gaz-Modem2/3 protocol via remote access mode and
also visualized in the CCTool computer program.

12.1 Summary alarms

There are two options to configure the summary alarms: A summary alarm and B summary alarm. The user
can select any of available, single alarm (from the group of the permanent alarms) which is a part of summary
alarm. The summary alarm will end if there will be not active any of the alarms from the selected group. During
the summary alarm, the occurrence of the additional configured alarm does not cause the opening of the new
summary alarm.
The summary alarms are registered as a permanent alarms in the bases: Alarms and Events. The alarms are
additional possibilities for automatic and telemetric systems to monitor the gas station.
The status of summary alarm can activate the selected signaling output. The OUT outputs configuration method
is available from the level of CCTool program, and is described in the part 11.2.12 OUT Outputs.
The summary alarms configuration is based on “drag and drop” interface function in the CCTool program. The
access to the configuration menu is available regarding to the path: Configuration Alarms group  indicator
of the A summary alarm, or B summary alarms.
The configuration of the summary alarms in the Gaz-Modem 2/3 protocol is based on the proper setting of DP
Table parameters as a bitmap which relates to the proper product codes of the ZD Table.

The DP table parameters which are used to configure A Summary Alarm:

 al_GA0 binary vector which activates summary alarm type A for alarms from 0 till 31
 al_GA1 binary vector which activates summary alarm type A for alarms from 32 till 63
 al_GA2 binary vector which activates summary alarm type A for alarms from 63 till 95
 al_GA3 binary vector which activates summary alarm type A for alarms from 96 till 127

The DP table parameters which are used to configure B Summary alarm:

 al_GB0 binary vector which activates summary alarm type B for alarms from 0 till 31
 al_GB1 binary vector which activates summary alarm type B for alarms from 32 till 63
 al_GB2 binary vector which activates summary alarm type B for alarms from 63 till 95
 al_GB3 binary vector which activates summary alarm type B for alarms from 96 till 127

To disable the functionality of summary alarm it should be proceed as follows:

 the selected alarm should be removed from the list
 the vectors which activate specific summary alarm, should be reset on zero.

12.2 Control of the gas meter HF/LF constant error.

To enable the control functionality of the gas meter HF/LF constant error value it should be:

 to equipped a gas meter in two types of transmitters LF and HF;
 to switch Qm stream source on “LF+HF” (parameter ‘Qm src’ in DP Table);
 to assure a external power supply V+ of converters, and power supply of NAMUR +8V;
 to set HF transmitters constant (the number of HF pulses relating to one cubic meter – impHF parameter in

DP Table) read from the name plate of controlled gas meter.

 to set possible percentage error limit of the transmitter HF constant (eHFdl and eHFgl in DP Table);

The percentage error is calculated between a counted constant and the constant written on the name plate (eHF
parameter in the DP Table) by every LF pulse.
If there is an limits overflow, it will be recorded the alarm (code 63) and displayed the message “eHF limit ex-
ceed”. This alarm code can indicate for example: a gas meter damage, or a transmitter damage, or improper
position of the HF transmitter, etc.
To disable the control functionality of constant error value of the gas meter, the value of error limits should be set
on zero (0).
The availability of HF transmitter constant:

 impHF/LF parameter in DP Table [imp/m3].

74

COMMON S.A. OPERATING INSTRUCTION CMK-03

 the CCTool program: bookmark Configuration  Gas meter  indicator HF transmitter constant

[imp/m3]

The availability of the limits errors of HF constant:

 eHFdl [%] and eHFgl [%] parameters in the DP Table — accordingly top and bottom limit
 the CCTool program: bookmark Configuration  Gas meter  indicator error limit of the HF constant

12.3 Operating below Qmin of gas meter – operating range: QmSTOP <–> QmMIN.

The configurable QmStop parameter describes a stream value at which the gas meter will stop.
If the current Qm stream value will be in the range between programmed values of QmStop and QmMin, the

volume converter will record the permanent alarm with code 62 and display the message “QmStop < Qm <
QmMin”. If the stream value will return to the proper, operating range between QmMin and QmMax, or from zero
to QmStop, the alarm will be close.

The alarm contains information as follows:

 Qm stream from the beginning of alarm;
 actual QmStop value;
 p1, t, tamb, status of the double-state Inx inputs;
 Vmk, Vbk, Ek counters from the beginning of alarm;
 Vmk, Vbk, Ek counters from the end of alarm;

The reading and analysis of this parameter provides information about date and time when the gas meter worked
at the stream below bottom measuring range.

To disable a functionality of the alarm registration in the operation range QmStop <–> QmMin, the QmStop pa­rameter is to be set on value equal with the bottom measuring range of gas meter.

To disable a functionality of the alarm registration for the range and QmStop overflows, the limits parameters are
to be set on zero (“0.00”).

12.4 LCD power supply

There is possible to configure a LCD setting and LCD backlight in case of the service action, connection or dis­connection of the external power supply, inactive time and energy consumption etc, what determinate the energy
usage.

The settings availability in the CCTool programs: bookmark Configuration  LCD.
There are three most typical LCD operating modes:

 DEFAULT – LCD activation without backlight, turn off on the battery after time
 ECONOMIC – LCD activation without backlight, the external power supply does not turn on the LCD
 CONFORT – LCD activation with backlight in every power supply mode, readability and availability

There is possibility to set the LCD individually by means of the options form mentioned above modes:

 automatic LCD backlight on the battery supply
 automatic LCD backlight on the external power supply
 LCD always turned-on on the external power supply
 activate the LCD after detection of the external power supply
 automatic LCD backlight after detection of the external power supply
 deactivate LCD if there is a loss of the external power supply
 LCD activity time on the battery supply

 LCD activity time on the external power supply

12.5 Reserve1 configuration in the Gaz-Modem1

The CMK-03 operates a functions of the Gaz-Modem1 protocol where the ‘rez1’ position informs about the pres­sure value of external converter (P2, P3 or P4) in the read frame of current data. To define the number of used
converter is to be set the ConfigRez1 parameter in DP Table — possible values: 1, 2, 3.

In the CCTool program: bookmark Configuration  General  indicator rez1 configuration in GM1.

75

COMMON S.A. OPERATING INSTRUCTION CMK-03

12.6 OPTO-GAZ port activity time

The OPTO-GAZ transmission port is activated automatically, after a placement of the optical head. The port is

automatically deactivated after the period of inactive time (no transmission). The automatic deactivation is applied
because of:

 battery saving;
 prevention against permanent blocking of the COM1 (TUCHEL) port through the OPTO-GAZ interface;

The deactivation is realized by means of the parameter:

 OptoExpireTime [s] — in the DP Table
 in the CCTool program: Configuration  COM ports  OPTO-GAZ  indicator OPTO-GAZ activity

time.

13 Remote control of the CMK-03 converter, Users, authorization

The CMK-03 is equipped in a four digital communication ports which assures reading as follows:

 current measured data
 registered data
 configuration data
 registered alarms and events.

The transmission is provided by the selected Gaz-Modem 1/2/3 or MODBUS protocols. The modification of con­figuration parameters is possible by means of the Gaz-Modem 2/3 protocol after an authorization with user ID
and correct password.

The data transmission can be realized with any of program which is compatible with the selected protocol. The
Gaz-Modem 2/3 protocol is standardized and described in the Factory Standard ZN-G-4007 and in the standard
ST-IGG-0207.

The CCTool program is dedicated to service and transmission with CMK-03. The program is provided and sup­ported by COMMON S.A.

13.1 CCTool configurator

The CCTool is a freeware program provided by COMMON S.A. which is dedicated to configure, to data reading
and to manage of the CMK-03. The program requires Windows XP SP3 or higher version of operating system
with installed Microsoft.NET Framework Version 2.0 and Microdsoft.NET Framework 4.0 to works correctly.
Program is free to download from the web site www.common.pl.

The connection with the CMK-03 is realized as follows:

 by means of the communication ports (COM1, COM2, COM3) which operates in the RS-GAZ2 standard

(intrinsically safe version of RS-485 interface).

 by means of the optical head COG-USB-03 manufactured by COMMON S.A (connected to the OPOTO-

GAZ port)

The COG-USB-03 optical head is available as additional accessories – look at the Table 2.1 Additional Accesso­ries.

The example screenshot of the CCTool menu is presented below:

76

COMMON S.A. OPERATING INSTRUCTION CMK-03

The CCTool program assure as follows:

 communications by using selected transmission channel: serial port, Internet , modem
 parameters and proprieties presentation
 configuration of all parameters used to configure the CMK-03
 diagnostic and alarms reading
 current data reading
 registered data reading
 updates for internal firmware of the device

The CCTool program has a option which automatically update the system version. Updates are
checked and downloaded via Internet from the server of Common S.A. Company.

The external power supply is not required if the data transmission is realized by means of the OPTO­GAZ. The reading is possible both on the battery and on the external power supply working mode.

The detailed information about the CCTool are described in menu: Program \ Help and also on website

www.common.pl

13.1.1 Connection by using COGUSB-03 interface

The COGUSB-03 optical interface assures connection between PC computer and the CMK-03, which is located
in the explosion hazard area.
The data exchange between read device and COGUSB-03 optical head is realized via IR radiation. The optical
head should be placed on OPTO-GAZ port of the read device by using built-in permanent magnet. The USB ter­minal is connected to the PC computer and work as 1.1 or 2.0 standard.
The optical head and the holding place are presented in Figure 12.1. The COGUSB-03 is available as an addi­tional accessory – see Table 2.1.

Figure 13.1 The placement of the OPTO-GAZ optical head

77

COMMON S.A. OPERATING INSTRUCTION CMK-03

The OPTO-GAZ port is automatically active at the moment of optical head placement. The connection is
confirmed with flashing icon, which is visual on the top bar of LCD main screen.

The port is active during a transmission time. If there is no transmission, the port remains active accord­ing to the defined time in the time period option (‘OPTO-GAZ activity time’ parameter). The parameter is
default set on 600 seconds.

The usage of the OPTO-GAZ port blocks transmission on the COM1 (TUCHEL) port during
activity time what is indicated with flashing icon on the LCD.

If the CMK-03 is ready to work, the owner / installer is obligated to change the default pass­word responsible for the authorization, acknowledgment and parameter modification.

The reading and configuration can be realized by means as follows:

 to connect interface to the USB port of PC computer
 to install the COGUSB-03 drivers (available on the website: www.common.pl)
 to start the CCTool program (available on website: www.common.pl)
 to select COM port from ports list, with description COGUSB-04<->OPTO-GAZ (the same as in Figure be-

low).

 to select the baud rate according to the OPTO-GAZ port settings (menu: Settings COM portsOPTO-

GAZ on the converter display).

 to select option/button ‘Connect’

13.1.2 Users and authorization

The “User 0” account is default active in the CMK-03 (user ID:”USER-000”, password: “0000”). The permission
level of the “User 0”, allows for the modification all group of the parameters (COM ports, clock, users permissions,
firmware, device manage, settings for limits and MID parameters).

78

COMMON S.A. OPERATING INSTRUCTION CMK-03

 to read
 to modification
 to registration with a registration pe-

riod

 daily registered data
 MID alarms
 Events

The “User-000” can activate next user and set his password and level of permission. The identifiers (ID) for new
activated users: USER-001, USER-002 USER-003 are not modifiable. The password can be the numbers with
length from 4 till 7 digits.

The example of the CCTool screenshot with configuration of the user account is presented below:

The authorization is realized from local service level, after ID selection and the password entering (see part

11.2.3). The modification of user accounts from LCD menu level is described in the part 11.2.14.

14 Data registration, reading and configuration in the telemetric systems

The CMK-03 controls 348 gas parameters. Data are classified as follows:

The all types of data are directly available in device menu (see part 11 – Local service).
There is possible to read and register the data via a telemetric systems by means of Gaz-Modem 1/2/3 protocol.
The current data can be read by means of the Gaz-Modem1/2/3 or Modbus RTU protocols.
The parameters modification and reading of registered data is possible by means of the dedicated CCTool con­figuration program or other program which is able to read the GMWin (see part 12 Remote control of the CMK-

03 converter, users, authorization).

14.1 Registered data

The CMK-03 volume converter has 3 type of the registered data:

 registered data with the registration period (1; 2; 3; 4; 5; 6; 10; 12; 15; 20; 30; 60) min
 daily registered data
 Events and MID alarms (the details are described in the part 9 MID alarms and part 10 MID interferences

(configuration changes)).

79

COMMON S.A. OPERATING INSTRUCTION CMK-03

WARNING:
The beginning of the gas day is defined as the ‘gas day’ parameter in the CMK-03 menu or as
the ‘HD’ parameter in the DP Table.

L
P

number

In DP
table

Gaz-

Modem

protocol

name

Description

Data

format

Parameter

registered

with Regis-

tration

period

daily registered param-

eter

1 0 p1

Gas pressure p1

short

real



2 1 t

Gas temperature

short

real



3 4 Vb

Volume counter in basic conditions

uint64





4 5 Vbe

Volume counter in basic conditions In emergency state

uint64





5

10

Vbs

Summary counter Vb+Vbe

uint64





6

11

p2
Gas pressure p2

short

real



7

12

p3
Gas pressure p3

short

real



8

13

p4
Gas pressure p4

short

real



9

15

p1peakMin
Minimum p1 value in registration period

short

real



10 16

p1peakMa
x

Maximum 1 value in registration period

short

real



1
1

17

p1MinD

Minimum p1 value in gas day

short

real



1
2

18

p1MaxD

Maximum p1 value in gas day

short

real



13 20

p2peakMin
Minimum p2 value in registration period

short

real



14 21

p2peakMa
x

Maximum p2 value in registration period

short

real



1
5

22

p2MinD

Minimum p2 value in gas day

short

real



1
6

23

p2MaxD

Maximum p2 value in gas day

short

real



17 25

p3peakMin
Minimum p3 value in registration period

short

real



18 26

p3peakMa
x

Maximum p3 value in registration period

short

real



1
9

27

p3MinD

Minimum p3 value in gas day

short

real



2
0

28

p3MaxD

Maximum p3 value in gas day

short

real



21 30

p4peakMin
Minimum p4 value in registration period

short

real



22 31

p4peakMa
x

Maximum p4 value in registration period

short

real



2
3

32

p4MinD

Minimum p4 value in gas day

short

real



2

33

p4MaxD

Maximum p4 value in gas day

short



14.1.1 Data registered with registration period and daily registered data

The registered data with the registration period (1; 2; 3; 4; 5; 6; 10; 12; 15; 20; 30; 60) are recorded in the inter­nal non-volatile, rotary memory. The capacity of base is prepared for 30 000 of records.
The registration period is available as the “Regist Period” option in LCD menu, and as the dtau parameter in the
DP Table. If the registration period is set on 10 minutes, the oldest data will be overwrite after 167 days.

The daily registered data are recorded in the non-volatile, rotary data base. The base capacity is calculated on
the 2200 days (6 years).

The reading of the registered data is possible locally from the menu (see part 11.1.2) or by means of Gaz-
Modem 1/2/3 protocols via one of three communication COM (RS-GAZ2) ports or one OPTO-GAZ port.

The list of the registered parameters in presented in the Table 14.1.

Table 14.1 List of the DP parameters

80

COMMON S.A. OPERATING INSTRUCTION CMK-03

4

real

25 60

tpeakMin
Minimum t value in registration period

short

real



26 61

tpeakMax
Maximum t value in registration period

short

real



2
7

62

tMinD

Minimum t value in gas day

short

real



2
8

63

tMaxD

Maximum t value in gas day

short

real



29 69

tamb
Ambient temperature

short

real



3
0

70

tambMinD

Minimum ambient temperature value in gas day

short

real



3
1

71

tambMaxD

Maximum ambient temperature value in gas day

short

real



32 72

Uzas
System supply voltage

short

real



3
3

73

UzasMinD

Minimum supply voltage in gas day

short

real



3
4

74

UzasMaxD

Maximum supply voltage in gas day

short

real



35 75

Urtc
RTC clock supply voltage

short

real



3
6

76

UrtcMinD

RTC clock minimum supply voltage in gas day

short

real



3
7

77

UrtcMaxD

RTC clock maximum supply voltage in gas day

short

real



38 159

Vm
Gas volume counter in measuring conditions

uint64





39 225

E
Energy counter

uint64





40 226

Ee
Energy counter in emergency state

uint64





41 227

Es
Summary counter E+Ee

uint64





42 236

dVm
Increase in Vm in registration period

uint64



4
3

238

dVmD

Increase in Vm in gas day

uint64



44 239

dVb
Increase Vb in registration period

uint64



45 242

dVbe
Increase Vbe in registration period

uint64



4
6

244

dVbeD

Increase Vbe in gas day

uint64



47 245

dVbs
Increase Vbs in registration period



4
8

247

dVbsD

Increase Vbs in gas day

uint64



49 248

dE
Increase in E in registration period

uint64



5
0

250

dED

Increase in E in gas day

uint64



51 251

dEe
Increase in Ee in registration period

uint64



5
2

253

dEeD

Increase in Ee in gas day

uint64



53 254

dEs
Increase in Es in registration period

uint64



5
4

256

dEsD

Increase in Es in gas day

uint64



55 296

Vb_dbl
Volume counter in basic conditions

long real





56 297

Vbe_dbl
Volume counter in basic conditions In emergency state

long real





57 298

Vbs_dbl
Summary counter Vb+Vbe

long real





58 299

Vm_dbl
Gas volume counter in measuring conditions

long real





59 300

E_dbl
Energy counter

long real





60 301

Ee_dbl
Energy counter in emergency state

long real





6

302

Es_dbl

Summary counter E+Ee

long real





81

COMMON S.A. OPERATING INSTRUCTION CMK-03

1 62

303

dVm_dbl
Increase in Vm in registration period

long real



6
3

305

dVmD_dbl

Increase in Vm in gas day

long real



64 306

dVb_dbl
Increase in Vb in registration period

long real



65 309

dVbe_dbl
Increase in Vbe in registration period

long real



6
6

311

dVbeD_dbl

Increase in Vbe in gas day

long real



67 312

dVbs_dbl
Increase in Vbs in registration period

long real



6
8

314

dVbsD_dbl

Increase in Vbs in gas day

long real



69 315

dE_dbl
Increase in E in registration period

long real



7
0

317

dED_dbl

Increase in E in gas day

long real



71 318

dEe_dbl
Increase in Ee in registration period

long real



7
2

320

dEeD_dbl

Increase in Ee in gas day

long real



73 321

dEs_dbl
Increase in Es in registration period

long real



7
4

323

dEsD_dbl

Increase in Es in gas day

long real



WARNING:

The occurrence of the ‘Event’ or ‘Alarms’ may cause the stop of volume counting to Vb counter and start the
estimation to Vbe emergency counter.

Event

code

Description

Counting

into Vbe

Event

code

Description

Counting

into Vbe

0

CMK-03 start

33

5N signaling error

1

p1 limit exceeded

34

6N signaling error

2

p2 limit exceeded

35

p1 outside method's scope

3

p3 limit exceeded

36

t outside method's scope

4

p4 limit exceeded

37

p1 transducer malfunction (MID:3)



5

t limit exceeded

38

t transducer malfunction (MID:4)



6

p1 range exceeded (MID:0)



39

K1 alarm replacement value
(MID:5)



7

p2 range exceeded

40

p1 replacement value enabled
(MID:6)



8

p3 range exceeded

41

t replacement value enabled
(MID:7)



14.1.2 Events

The following issues are registered as ‘Events’ in the CMK-03:

 change of the measured parameters over set limits
 occurrence of the outputs signals
 configuration change
 occurrence of the errors for calculating parameters
 firmware change.

The ‘Events’ are recorded in the internal rotary, non-volatile data base with capacity on the 1024 position.
The reading of the ‘Alarms’ and ‘Events’ is possible locally from the menu level (see part 11.1.2) or by means of

Gaz-Modem 1/2/3 protocols via one of three communication COM (RS-GAZ2) ports or one OPTO-GAZ port.
The “List of Events” is presented in the Table 14.2.

Table 14.2. List of events In CMK-03 converter

82

COMMON S.A. OPERATING INSTRUCTION CMK-03

9

p4 range exceeded

42

internal error (MID:8)



10

Przekr. zakr. t (MID:1)



43

Vb counter overfill (MID:128)



11

to range exceeded

44

Configuration change (MID:129)



12

CPC1 comm. Terror

45

Fill > 70% (MID:130)



13

CPC2 comm. error

46

Database full (MID:131)



14

CPC3 comm. Terror

47

Alarms confirmed (MID:132)



15

CPC4 comm. Terror

48

Battery < 10% (MID:133)



16

Signaling no. 1

49

Alg. Z range exceeded (MID:2)



17

Signaling no. 2

50

Calculation method error

18

Signaling no. 3

51

Open LFb ctrl. contact

19

Signaling no. 4

52

Qm limit exceeded

20

Signaling no. 5

53

Qb limit exceeded

21

Signaling no. 6

54

Qm meter range exceeded

22

Configuration lock

55

OPTO-GAZ active

23

External pwr. Supp

56

dVbsh1 limit exceeded

24

NAMUR pwr. supp.

57

dVbsh2 limit exceeded

25

Battery 1 disconnected

58

dVbsh3 limit exceeded

26

Battery 2 disconnected

59

eph1 limit exceeded

27

Check CALC

60

eph2 limit exceeded

28

Time change

61

Vm change

29

Aut. time change

62

Qmmin < Qm < QmStop

30

Value modification

63

eHF limit exceeded

31

String modification

32

Firmware upgraded (MID:134)



14.2 Reading and configuration in telemetric systems

The CMK-03 volume converter is equipped in three independent communication RS485 ports. They are executed
as intrinsically safe ports in the RS-GAZ2 standard. The configuration and remote reading in the telemetric sys­tems is realized by using the Gaz-Modem 1/2/3 protocol.

The connection of communication ports (COM1, COM2, COM3), to the remote telemetric system is provided by
using a intrinsically safe power supply–converter e.g. CZAK-03 (see Table 2.1 Additional Accessories ). There is
also possible to use other power supply device with conformed parameters according to the Table 4.13.

Example of the telemetric systems is presented in Figure 14.1.

The connection diagram of the CZAK-03 clamps to the CMK-03 clamps is presented in Figure 14.2.

Figure 14.1 Example of telemetric system

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COMMON S.A. OPERATING INSTRUCTION CMK-03

Figure 14.2 Connection method of the CZAK-03 clamps into CMK-03 clamps

To provide the power supply to the volume converter and receive one transmission channel outside the Ex zone,
it is necessary to connect the cables of CZAK-03 clamps which are marked with labels V+, GND, A, B to the
identically marked clamps of the selected transmission port: COM1 (TUCHEL), COM2 or COM3.

If the CMK-03 will operate with NAMUR type reed transmitters, (the HF transmitter of gas meter or the proximi-
ty detectors) which are connected to the IN5 and/or IN6 input, it is necessary to connect the additionally cable
form CZAK-03 unit (except the external power supply V+, GND), which will provide the voltage +8,2V to NAMUR
circuits marked with +8V label.

15 Environmental protection.

15.1 Packaging waste

Packaging of delivered device should not be disposed as a municipal waste.

Packaging has been marked with a recycling symbol. According to the Packaging Regulations, the user is obliged
to ensure that individual elements of packaging are thrown into right containers for separate collection.

15.2 Disposal of used batteries and devices after their life-time.

There is not allowed to throw out as a municipal waste the items listed below:

 used batteries
 used accumulators after replacing
 used devices after ending of their life-time

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COMMON S.A. OPERATING INSTRUCTION CMK-03

version

data

change description

101U

May 2015

first edition

102U

June 2016

second extended edition filled with technical descriptions and functionalities

The items are marked with the symbol:

The batteries (accumulators) and other parts of the devices contain hazardous and harmful substances. The
substances subject under the regulation of Waste Collection and should be prevent against the penetration to
natural environment.
If the company has not settled the procedure regarding to the electronically waste, the used batteries and/or
devices should be always delivered to proper collection point. The information about free of charge collection
points should be available on the website of municipal office.

16 History of changes in documentation

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COMMON S.A. OPERATING INSTRUCTION CMK-03

17 Notes

86