gas-volume conversion device ptz-box 3.0 - vemm

gas-volume conversion device ptz-box 3.0 - vemm
GAS-VOLUME CONVERSION DEVICE
PTZ-BOX 3.0
Manual
Specifications
Technical Description
Mounting instructions
Configuration
Single-channel gas conversion device
Approved for installation in potentially explosive atmospheres.
February 2017
IOM_Manual_EN_PTZ-BOX 3-0_097-102-003_2017 02.docx
Safety Measures
This measurement device can be operated only by an operator trained in
compliance with the technical terms, safety regulations, and standards. It is
necessary to consider any other legal and safety regulations stipulated for special
applications. Similar measures also apply for special applications. Similar measures
also apply for using the accessories. The operator training must be in compliance
with Decree no. 50.1978 Coll.
The information in this manual does not have the power of a legal obligation from the
manufacturer’s side. The manufacturer reserves the right to implement changes. Any
changes in the manual or in the product itself can be performed at any time without any
previous alert, with the goal of improving the device or fixing any typographical or technical
mistakes.
IOM_Manual_EN_PTZ-BOX 3-0_097-102-003_2017 02.docx
TABLE OF CONTENTS
1
Introduction ............................................................................................. 3
1.1 Basic device description ....................................................................................... 3
1.2 Function principle ................................................................................................ 4
1.3 Device dimensions ............................................................................................... 8
2
Device technical description ..................................................................... 8
2.1
2.2
2.3
2.4
3
Safety instructions...................................................................................14
3.1
3.2
3.3
3.4
3.5
4
General ..............................................................................................................14
Use in potentially explosive atmosphere .............................................................14
Risks of use.........................................................................................................14
Special conditions of use .....................................................................................15
Using different groups of gas ..............................................................................15
Metrological characteristics ....................................................................16
4.1
4.2
4.3
4.4
5
Device architecture.............................................................................................. 8
Power supply ....................................................................................................... 9
Security seals ......................................................................................................12
Product label ......................................................................................................13
Temperature measurement ................................................................................16
Pressure measurement .......................................................................................16
Compressibility calculation .................................................................................17
Volume measurement and calculation ................................................................18
Inputs and outputs ..................................................................................20
5.1 Inputs .................................................................................................................20
5.2 Outputs ..............................................................................................................22
6
Communication with the PTZ-BOX 3.0 .....................................................24
6.1 RS-232 and RS-485 interfaces ..............................................................................24
6.2 Optical interface IEC-1107 ...................................................................................26
7
Functions.................................................................................................27
7.1
7.2
7.3
7.4
7.5
7.6
Parameter indication ..........................................................................................27
Actual values ......................................................................................................27
Archives .............................................................................................................28
Device configuration ...........................................................................................31
Other device functions........................................................................................31
Securing the device against a change of metrological values ...............................32
IOM_Manual_EN_PTZ-BOX 3-0_097-102-003_2017 02.docx
7.7 Access passwords ...............................................................................................33
8
Starting the device ..................................................................................37
9
Operation ................................................................................................38
9.1
9.2
9.3
9.4
9.5
9.6
Keypad ...............................................................................................................38
Menu system ......................................................................................................39
Initial display ......................................................................................................39
Menu structure ..................................................................................................40
Quick Access Buttons ..........................................................................................49
Change settings via the keypad ...........................................................................49
10 Mounting instructions .............................................................................51
10.1 Mechanical mounting of the device ....................................................................51
10.2 Cable connection, grounding...............................................................................54
11 Accessories (options) ...............................................................................56
11.1
11.2
11.3
11.4
11.5
Assembly accessories ..........................................................................................56
Intrinsically safe power supply ............................................................................56
Barrier and communication modules ..................................................................56
GPRS communicators..........................................................................................56
Other accessories ...............................................................................................56
12 Specifications ..........................................................................................57
13 Intrinsically safe parameters ...................................................................62
14 Configuration ..........................................................................................64
14.1
14.2
14.3
14.4
Checking after installation ..................................................................................64
Connecting the PTZ-BOX 3.0 with a PC ................................................................64
Configuration with the GASCcomm software ......................................................65
Password in the device .......................................................................................76
15 Configuration examples...........................................................................78
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
Parameters display modes ..................................................................................78
Setting the gas meter impulse factor ...................................................................78
Pulse outputs setting ..........................................................................................81
Analogue output setting .....................................................................................86
Limits of measured values ..................................................................................89
Monitoring the external power supply ................................................................91
Setting of communication with MODBUS protocol ..............................................93
Configuration of Quick Access buttons ................................................................96
IOM_Manual_EN_PTZ-BOX 3-0_097-102-003_2017 02.docx
16 Exchange of pressure and temperature sensors .................................... 100
16.1 Pressure and temperature sensor replacement procedure in the PTZ-BOX 3.0 ... 100
16.2 Software settings for a new temperature sensor ............................................... 101
16.3 Software settings for a new pressure sensor ..................................................... 103
17 Additional external digital temperature or pressure sensor................... 104
17.1 Fitting an additional digital pressure or temperature sensor ............................. 104
17.2 Configuring the digital sensor in the parameter file ........................................... 106
17.3 Final verification after replacement of a sensor or adding a digital sensor ......... 107
18 What if something does not work ......................................................... 109
19 Literature .............................................................................................. 111
20 Documentation ..................................................................................... 111
21 Software................................................................................................ 112
22 Used trade marks .................................................................................. 112
23 List of figures ......................................................................................... 113
24 List of Tables ......................................................................................... 114
IOM_Manual_EN_PTZ-BOX 3-0_097-102-003_2017 02.docx
PTZ-BOX 3.0
Used symbols and definitions
Symbol
AGA8-G1
AGA8-G2
AGA8-92DC
AGA NX-19 mod
Description
Compressibility calculation method
Compressibility calculation method
Compressibility calculation method
Compressibility calculation method
ASC
BTS
CL-1 Module
CRC
CTR
Kx MODULE
Accredited Service Centre
Base Transceiver Station
Analogue output module (4-20mA)
Checksum – used for data protection
Communication protocol
Some of the products of series
Kx module (K1
MODULE, K2 MODULE, K3 MODULE, K3/A MODULE,
K4 MODULE, K4/A MODULE)
Communication protocol
Direct Current voltage
Increment of energy
Increment of primary volume Vm or Vc
Increment of base volume
Increment of corrected primary volume
Increment of primary volume
Energy
Estimated value of energy
Digital pressure sensor PA1.1 (RS485/Modbus
connection)
Digital temperature sensor TA1.1 (RS485/Modbus
connection)
Electromagnetic compatibility and resistance
Electromagnetic radiation
Software equipment loaded in the device
Compressibility calculation method ( related with
AGA NX-19 mod) according to VNIMS directive (valid at
temperature range -23°C to +60°C)
Combustion heat (Superior heating value)
intrinsic safety, intrinsically safe
Some of the JBZ-01, JBZ-02, JBZ-02/A products
Communication protocol designed by Modicon [15]
Specific communication protocol
Calculation method of gas compressibility factor, more
details in [17]
Communication protocol
Software for PC
Conversion factor
Ratio of compressibility factors (Z/Zb)
Gas meter constant (number of impulses per 1 m3)
DLMS
DC
dE
dV
dVb
dVc
dVm
E
Es
PA1.1
TA1.1
EMC
EMI
firmware, FW
GOST NX-19
Hs
IS
JBZ-0x
Modbus
M900
SGERG-88
SNAM
SW
C
K
kp
1
Unit
MJ
m3
m3
m3
m3
MJ
MJ
MJ/m3
imp/m3
PTZ-BOX 3.0
Symbol
N
p
pb
Qm
Qb
T
t
Tb
V
Vm
Vc
Vb
Vbs
Vs
Vd
Vbd
Vf
Vbf
Z
Zb
Description
Number of input impulses from gas meter
Absolute pressure at measurement conditions
Absolute pressure at base conditions
Flowrate at measurement conditions (further primary
flowrate)
Flowrate at base conditions
Absolute temperature at measurement conditions (T = t +
273.15)
Gas temperature
Absolute temperature at base conditions
Volume Vm or Vc
Volume at measurement conditions (further primary
volume)
Corrected volume at measurement conditions (volume
corrected based on correction curve of gas meter)
Volume at base conditions (hereinafter also the
standardized volume)
Error volume at base conditions (hereinafter also the
error standardized volume)
Error volume at measurement conditions (hereinafter
also the error operational volume)
Difference of primary volume
Difference of base volume
Tariff counter of primary volume
Tariff counter of base volume
Compressibility factor at measurement conditions
Compressibility factor at base conditions
2
Unit
imp
kPa
kPa
m3/h
m3/h
K
°C
K
m3
m3
m3
m3
m3
m3
m3
PTZ-BOX 3.0
1 Introduction
1.1 Basic device description
The Electronic gas volume converter PTZ-BOX 3.0 (hereinafter called: “the
device”) is a measuring instrument designed for the conversion of the gas volume
measure at measurement conditions to volume at base conditions.
The information on the gas volume passing through is measured using the
impulse outputs of the gas meter. The gas temperature and pressure are measured
by integrated converters. The device calculates the ratio of compressibility factors of
gas using standard methods or a constant value is used.
The device has been constructed and approved according to the EN 12405-1
standard as a conversion device type 1 (compact system) and can be supplied as a
T, PT, or PTZ conversion device.
From safety point of view the device is constructed according to EN 60079-11
as intrinsic safe.
It is manufactured and supplied in compliance with the following European
Parliament directives:
2014/34/EU Equipment and protective systems for use in potentially explosive
atmospheres
2014/30/EU Electromagnetic compatibility
2014/32/EU Directive on measuring instruments
Device is put on the market and into usage according to above mentioned
standards and is marked with CE mark.
The device is built in a casing with sturdy plastic with IP65 protection. It is
equipped with a graphic display and a 10-button keypad. Furthermore, it has impulse
inputs for the connection of a gas meter with LF or HF impulse output and binary
inputs. The device is also suitable for connection to encoder outputs of a gas meter.
The binary inputs can work as check inputs to check the connection with a gas meter
or can have a different function, e.g. monitoring the conditions of safety snap locks,
doors, etc. The device has 4 available outputs. These can be configured as impulse
or binary outputs, or as data outputs for the CL-1 module. When using this module,
an analogue current output can be realized.
The device is powered by a lithium battery. The life cycle of the battery is 6
years in the standard work mode. An external power supply source can be used in
applications with higher demands.
The device has a data archive of the measured values with an adjustable
structure and storing period. The binary archive stores changes on the binary inputs
and the occurrence of the monitored events (limits, etc.) Error conditions are stored
in a status archive. It is possible to program the storing of important parameters and
calculations and storage of some statistical values in the daily and monthly archive.
The archive has settings for service and metrology; in case of changing the settings,
these settings, as well as the counter values, date and time are recorded. Other
available logs are mentioned in 7.3.
3
PTZ-BOX 3.0
For communication with a superior system, the device has a serial interface
(RS-232 and RS-485). Various communication protocols installed in the device allow
easier connection to SCADA systems. The device cooperates with common phone,
radio, GSM, and GPRS modems, and in case of an alarm condition, it can initiate the
connection.
The device can be extended by one non-metrology sensor for measuring
pressure or temperature. This extension can be performed without breaking the
official mark on an already installed device.
-
Basic configuration of the PTZ-BOX 3.0 offers:
analogue input (pressure P - metrological channel)
analogue input (temperature T - metrological channel)
4x digital input DI1 to DI4 (binary, pulse); input DI1 can be used for connecting a
NAMUR encoder
4x digital output DO1 to DO4 (binary, pulse, analogue)
communication channel RS485/RS232 for communication with superior system
input of external power supply
option: connection of one digital pressure sensor PA1.1 or one digital
temperature sensor TA1.1 (non-metrological) to the internal bus via the EDT
expansion board. This extension can be accomplished by the end user on an
already installed device without breaching metrological seals.
The device can be configured using the supplied SW [22] for PCs. This SW also
allows the readout, display and archive of both the immediate measured values as
well as the contents of the internal device archives.
1.2 Function principle
1.2.1 Conversion using the equations of state
The device obtains data on the gas volume via impulses (N) from an LF or HF
sensor located in the gas meter. The volume at the measuring conditions (V) is
calculated from the number of impulses (N) and gas meter constant (kp).
The device obtains other data on the gas from the temperature and pressure
sensors. This data is used to calculate the conversion factor (C) which is influenced
also by: Absolute temperature at base conditions (T b), absolute pressure at base
conditions (pb) and compressible factor of the gas at base conditions (Zb).
Volume at measuring conditions (operational volume):
N
V=
kp
Ratio of compressibility factor:
Z
K=
Zb
Conversion factor:
p
Tb
1
C=
*
*
pb
(t + 273.15)
K
4
PTZ-BOX 3.0
Volume at base conditions (standardized volume):
Vb = V * C
The gas compressibility factor expresses the deviation of properties of natural
gas from the properties of an ideal gas. By setting the parameters, it is possible to
choose a specific method for calculation of the compressibility factor according to the
standard (AGA NX-19 mod, AGA8-G1, AGA8-G2, SGERG-88 or AGA8-92DC). A
constant compressibility value can be used for other gases besides natural gas. If the
pressure or temperature value gets out of the limits of the validity of the chosen
standard, the device calculates using a default compressibility value.
The device calculates the gas flow from the impulse frequency on the input in
real time using mathematical filtration from the input signal.
Operational flow:
Q = ∆V / ∆t [m3/h]
Where: ∆V ............................
∆t .............................
increment of operational volume
time between the impulses with an accuracy
of one hundredth of a second
The value of the flow displayed on the converter display is updated every 10
seconds.
Standardized flow:
Qb = C * ∆V / ∆t [m3/h]
1.2.2 Error values of volumes at measuring conditions and volumes
at base conditions
For calculation during error conditions (i.e. in case of a sensor error, deviation of
the parameter value from the working range, or device error), the device has
counters of the error volume at measuring conditions (Vs) and error volume at base
conditions (Vbs). These counters are interconnected with the pertinent counters of
volume at normal conditions.
A detailed description of device behaviour during normal and error conditions is
in paragraph 4.4.
1.2.3 Volume correction at measurement conditions
Device enables to compensate gas meter error according to predefined
correction curve from gas meter test certificate. This function and parameters Vc can
be activated only by the manufacturer or by an accredited service center to ensure
that the used gas meter correction curve as a function of the flowrate Qm is valid
within the working conditions.
The error of measurement is corrected by using the function f(Qm). The
corrected volume is:
Vc = Vm x f(Qm)
5
PTZ-BOX 3.0
where
Vc
Corrected volume at measurement conditions
Vm
Primary volume
Qm Primary flowrate
Linear interpolation method is used for getting values between calibration
points. The file with correction values is to be inserted into the device by using the
service software [21]. Information about the insertion of a correction curve into the
device is logged in the setup archive.
The principle of the volume calculation is explained in Fig. 1
Condition for use of volume correction.
1. Correction is possible only in the case that the gas meter transmits at least
10 pulses per second which means the use of HF sensors is required.
2. Under Qmin the correction is not applied and over Qmax the value of the
correction coefficient given for Qmax will be used.
1.2.4 Conversion of volume to energy
The device can calculate the energy content from the consumed quantity of
gas. This conversion uses the value of the combustion heat Hs. The calculation is
made with the differences dVb (and dVbs) multiplied by the actual value of the
combustion heat Hs.
dE=Hs x dVb, dEs=Hs x dVbs
Two counters (energy counter E and error energy counter Es) are dedicated for
measurement in units that can be selected to present the value in MJ, kWh or Btu.
No conversion of the absolute counter value (E or Es) is performed after the change
of measurement units. Following increases are added in the new units.
Principle diagram of energy calculation is drawn at Fig. 1
Combustion heat Hs
To get a correct conversion it is necessary to enter the right value of the
combustion heat and the related conditions. Then the device will make a new
conversion of the relative temperature for the defined relative conditions and the final
value will be used for the energy calculation. In case of the AGA8-92DC method the
combustion heat is not entered as a fixed value but calculated from the gas
composition according to EN ISO 6976. For the other methods the value of Hs
(MJ/m3) must be entered manually and always under the conditions:
combustion temperature/ temperature of gas = 25°C / 0 °C
6
PTZ-BOX 3.0
Fig. 1 Volume and energy calculations - Scheme
7
PTZ-BOX 3.0
1.3 Device dimensions
Fig. 2 Device dimensions
2 Device technical description
2.1 Device architecture
The device’s electronics are laid out on three basic boards.
The bottom part of the casing contains the input/output board with the battery
and back-up battery and terminals for connecting the pressure and temperature
sensors and device inputs and outputs. The connections related to the metrological
function of the converter are protected by covers which are secured with official
seals.
Optionally, the input board can have an extension board (EDT port) for
connecting an additional digital pressure sensor (PA1.1) or digital temperature
sensor (TA1.1). This additional digital sensor communicates with the converter using
the Modbus RTU protocol (via RS-485). More information can be found in chapter 17.
The lid of the housing contains a processor board that is protected by a cover
and secured by an official seal. The board cover has an opening for access to the
service switch. The service switch can be used to enable/disable the setting of the
device parameters using a service SW.
8
PTZ-BOX 3.0
Fig. 3 Main parts of the device
2.2 Power supply
2.2.1 Main supply battery
The device is powered by a built-in (lithium) battery with a voltage of 3.6 V. The
life cycle of the battery depends especially on the configuration of the device, the
frequency of communication, and the time the display is on. The consumed capacity
is calculated during the device’s activity and the capacity decrement is recorded in its
memory. The device will issue an alert to replace the battery 90 days before the
expected discharge (error message E9 – see paragraph 9.4.8.
Standard mode for a life cycle of the main supply battery of more than 5 years:
 Archiving period of the data archive 1x per hour
 Communication with device 2 min/day
 Activating the display 2 min/day
 Frequency of input impulses ≤10 Hz
 Measuring period 15 s
 Ambient temperature 25 °C
If the device is operated with higher consumption than in the defined mode, it
is necessary to count on a more frequent replacement of the battery or use a network
power source.
9
PTZ-BOX 3.0
2.2.2 Replacement of main supply battery
Replacement of main supply battery is allowed in the hazardous area but
only with recommended type of battery.
It is advised to disconnect a discharged battery as soon as possible. While the
battery is being replaced, the device does not measure pressure or temperature, but
counts the incoming LF impulses (but does not convert the number of pulses, this will
be performed when the supply battery is connected again) and insures that the real
time clock is running. The data stored in the device archives and parameter settings
will remain.
To correct the calculation of the remaining battery capacity after
replacement it is necessary to reset the battery calculation with service SW
[22]. In the parameter file, select the hardware module and press the button
„Change battery“.
Discharged batteries are in the hazardous waste category. According to
European directives and other internal directives batteries must not be disposed
together with household waste.
2.2.3 Back-up battery
The battery ensures the back-up of important functions in case of the discharge
or replacement of the supply battery. The back-up battery can be replaced in an
accredited service center after the official and security seal is broken (replacement
cannot be performed in a potentially explosive atmosphere). It is necessary to use
the same type of battery: Only recommended battery type may be used.
Standard mode for a life cycle of the back-up battery of 10 years
 Storage temperature 25 °C
 Backed-up inputs (DI1 – DI4) not connected or connected contacts
disconnected
 Does not depend on the presence of the supply battery
Standard mode for a life cycle of the back-up battery of 4 years
 Backed-up inputs (DI1 – DI4) short-circuited
 Without powering battery
10
PTZ-BOX 3.0
Self-discharging of batteries
The back-up and supply batteries are lithium type. Their capacity drops due to
self-discharging. The recommended time frame for their replacement is 10 years,
even if the battery was never connected.
2.2.4 External power supply
Use of an external power supply is required in case of:
- NAMUR HF pulse input
- Binary output
- NAMUR encoder.
External power supply is recommended in case of increased current consumption
like:
- frequent communication (more than once a day),
- frequent LCD displaying
An approved intrinsically-safe power source must be used for the external
power supply. The internal power sources of the communication modules Kx
Modules can be used if no NAMUR sensors are connected.
If a NAMUR sensor is connected: always use an external power source JBZ-02
or JBZ-01.
Safe area
Hazardous area
Ex i
INT. BUS (optional)
INPUT P
PTZ-BOX 3.0
EEx
K3 MODULE
OUTPUTS
DO1
DO2
DO3
DO4
P0
RS485
POWER
INPUTS
DI1
DI2
DI3
DI4
INPUT T
DI 1
DI 2
DI 3
DI 4
6V OUT
RS232
Hazardous area
P2
DO 1
DO 2
DO 3
DO 4
12 VDC
12 Vdc
Safe area
Ex i
INT. BUS (optional)
INPUT P
PTZ-BOX 3.0
OUTPUTS
DO1
DO2
DO3
DO4
POWER
INPUTS
DI1
DI2
DI3
DI4
INPUT T
RS485
RS232
JBZ-02
=8V
12 Vdc
=12V
EEx
Fig. 4 Examples of external power supply
11
PTZ-BOX 3.0
2.3 Security seals
Security seals located on the device indicate the technical condition of the
device regarding unauthorized handling.
Security seal of the manufacturer (metrological seal)
- its design is stipulated by the Approval certificate on the quality management
system for production, output control, and testing pursuant to Enclosure no. 2,
procedure D, ND no. 464/2005 Coll., issued by the Notified Body no. 1383. Such
security mark has the same importance for the user as the so called official seal
according to the Act on Metrology.
In case such a seal is broken, the manufacturer does not guarantee that the
properties of the device are in compliance with the EC Certificate on type verification.
User seal
- control seal of the user (seals) as needed
Seal of the manufacturer
- control seal of manufacturer as needed
Fig. 5 Security marks
12
PTZ-BOX 3.0
2.4 Product label
13
PTZ-BOX 3.0
3
Safety instructions
3.1 General
The device has been approved according to the guideline 94/9/CE
(2014/34/EU) and an EC certificate on type approval (ATEX) has been issued for its
use in potentially explosive atmospheres. Respecting this guideline is mentioned in
the CE compliance notation.
3.2 Use in potentially explosive atmosphere
Device is fully in compliance with EN 60079-26 ed.2 (see [4]).
Based on the EC certificate in the verification 11 ATEX 0015X, the device can
be operated in potentially explosive atmospheres with a classification of ZONE0.
Indication of the device regarding safety against explosion:
II 1G Ex ia IIC T4/T3
PTZ-BOX 3.0
Zone 0
Environment temperature for temperature class T4:
Environment temperature for temperature class T3:
-25 °C to +40 °C
-25 °C to +70 °C
The device has been constructed and approved as intrinsically safe. That
means that only approved devices (intrinsically safe devices, consecutive
devices) or so called simple devices complying with the EN 60079-11 standard
and complying with the intrinsically safe parameters listed in the
EC Certificate on type verification [16] can be connected to the device
connectors.
The applicable safety standards must be met when connecting.
When connecting a device, it is necessary to consider the electrical
characteristics of the connecting cables and respect the requirements of the
applicable safety standards. Furthermore, it is necessary respect the Special
conditions of use provided these certificates contain them. The parameters of nonexplosiveness of the device are listed in chapter 13.
3.3 Risks of use
Device cabinet is made of polycarbonate. A keypad foil of polystyrene is placed
on the top cover. In some extreme cases electrostatic charge accumulated on
surface of cabinet could cause explosion. To avoid explosion it is strictly
recommended to keep the following rules:
 At hazardous the zones device must not be installed at places where
ambient conditions could create an electrostatic charge.
 Device may only be cleaned by humid wiper.
14
PTZ-BOX 3.0
3.4 Special conditions of use
1. The device must not be installed or located in an environment with a
potential danger of electrostatic charge of the device casing (e.g. by
flowing air, etc.) Only a damp cloth must be used if the device is being
cleaned, to prevent the creation of electrostatic charge.
2. Only the following types of batteries are allowed to be used in the device:
Main supply battery: Saft LS33600, Backup battery: Saft LS14250.
3.5 Using different groups of gas
Individual variants of device can be used only with certain groups of gas
according to this table.
Group of gas
IIC
IIB
IIA
yes
yes
yes
Device variant
PTZ-BOX 3.0
15
PTZ-BOX 3.0
4 Metrological characteristics
4.1 Temperature measurement
This device uses the PT1000 temperature sensor to measure temperature. The
temperature sensor’s connection is two-wired. The influence of the length and the
characteristics of the cable used are considered during calibration and therefore do
not influence the accuracy of the temperature measuring.
The temperature measuring range is -25 °C to +60 °C. The measuring period is
equal for both the temperature and pressure sensor and it can be custom set at a
range from 1 s to 30 s. The temperature measurement units can be adjusted.
Replacement of the temperature sensor is protected by the security seal of the
manufacturer (metrological seal) and can be performed solely at an Accredited
Service center (ASC).
During device configuration, the user must enter the Default temperature
value. This value will be used for the calculation of compressibility instead of the
measured temperature value in the following cases:
- The value of the measured temperature are out of the measuring range
- An error occurred when measuring the temperature
4.2 Pressure measurement
Pressure measurement is performed by an analogue converter. The converter
contains a piezoresistive silicon sensor with a resistant stainless steel membrane.
The device electronics ensures the correction of non-linearity and the temperature
dependency of the pressure sensor based on the calibration data saved in the device
memory. The measuring range of the pressure converter must be requested by the
customer when ordering the device. The available pressure ranges are listed in
chapter 12.
The measuring period is equal for both the measuring of temperature and
pressure, and can be custom set at a range from 1 to 30 s. The pressure measuring
units can be set.
Replacement of the pressure converter is protected by a security seal of the
manufacturer (metrology mark) and can be performed solely at an Accredited Service
center (ASC).
During device configuration, the user must enter the constant parameter
Default pressure value. This value will be used for the calculation of compressibility
instead of the measured pressure value in the following cases:
- The value of the measured pressure are out of the measuring range
- The device is manufactured without the pressure converter (so called TZ
or T corrector)
- An error occurred when measuring the pressure
16
PTZ-BOX 3.0
4.3 Compressibility calculation
4.3.1 PTZ, TZ conversion
The compressibility factor is calculated from the composition of the gas, using
one of the following methods implemented in the device: AGA NX-19-mod, SGERG88, AGA8-G1, AGA8-G2 or AGA8-92DC.
Calculation of the compressible factor is performed in each measuring period. In
the SGERG-88 and AGA8-G1 methods the value of the heating value is entered for
the combustion temperature 25°C / gas temperature 0°C. The service SW contains a
built-in calculator for the conversion of the heat of combustion at different
temperatures.
Due to the required accuracy of the device, the use of the individual methods of
calculation of compressibility is limited by the pressure and temperature ranges
according to the following table:
Method
Pressure
measuring range
AGA NX-19
mod
SGERG-88
AGA8-G1
AGA8-G2
AGA8-92DC
80 ÷ 520 kPa
200 ÷ 1000 kPa
400 ÷ 2000 kPa
700 ÷ 3500 kPa
1400 ÷ 7000 kPa
-25 ÷ +60 °C
N/A
N/A
N/A
N/A
-25 ÷ +60 °C
-25 ÷ +60 °C
-25 ÷ +60 °C
-10 ÷ +60 °C
-10 ÷ +60 °C
-25 ÷ +60 °C
-25 ÷ +60 °C
-25 ÷ +60 °C
-10 ÷ +60 °C
-10 ÷ +60 °C
-25 ÷ +60 °C
-25 ÷ +60 °C
-25 ÷ +60 °C
-25 ÷ +60 °C
-25 ÷ +60 °C
80 ÷ 1000 kPa
400 ÷ 7000 kPa
N/A
N/A
-25 ÷ +60 °C
-10 ÷ +60 °C
-25 ÷ +60 °C
-10 ÷ +60 °C
-25 ÷ +60 °C
-25 ÷ +60 °C
Table 1 Limitation of standard validity range of compressibility calculation
Note:
Additionally the GOST NX-19 method is applied which is not approved in the
MID certificate. The use of the GOST NX-19 method is limited to a temperature
range from -23°C to +60°C.
Default compressibility
For the set method during each calculation, it is checked whether the measured
pressure and temperature value are in the valid range of the selected method. If
values are outside the valid range, the so called default compressibility is used for
the conversion. The value of the default compressibility must be entered by the user
during device configuration.
4.3.2 PT, T conversion
The device also allows the setting of the ratio of compressibility factors (K) as a
fixed constant. The range of the entered constant is not limited.
17
PTZ-BOX 3.0
4.4 Volume measurement and calculation
For measurement and volume calculation the following counters are used for
each channel.
Vm
Primary volume counter (Actual volume)
Vc
Corrected volume counter (volume corrected based on gas meter
correction curve)
V
Volume Vm or Vc
Vs
Counter of the actual volume under error conditions (error actual
volume)
Vb
Counter of volume at base conditions (standardized volume)
Vbs Counter of standardized volume under error conditions
4.4.1 Operation at error conditions
In case of error conditions, the device will count the actual value as well in the
counter of the actual volume (V) and in the counter of the error volume at measuring
conditions (Vs). The values of the volumes at base condition (Vb) will stop being
counted in the counter of the volume at base conditions (Vb), and will calculate from
the default values of pressure or temperature and will be stored in the counter of the
error volume at base conditions (Vbs). During this condition, the values are not stored
in the counter of volume at base conditions (Vb).
Fig. 6 Storing impulses in counters
18
PTZ-BOX 3.0
If a default compressibility is used during the calculation (when temperature or
pressure are out of the valid range of the compressibility calculation formula) (see
article 4.3.1), whereas pressure or temperature are not outside the measuring range;
the converted volume is stored in the error counter.
4.4.2 Recognition of a changing gas flow direction
Flow direction detection is enabled for gas meters equipped with two phases
shifted LF sensors or encoders. Corrector evaluates gas flowrate respecting direction
changes (Pic. 7) under following terms:
- If primary volume additions are positive: volume processing is made by
standard procedure (for example increasing of Vm and Vb, or Vms and Vbs).
- If gas flow direction is changed device will fix the value of primary volume
counter at the moment of turn. When gas flows back
only primary
volume Vm (or Vms) is updated. The other counters are frozen.
- After returning back to the correct direction counting will get blocked out
into appropriate counters (Vb, Vbs) only after reaching level of primary
volume where reversed flow was started up. Primary volume counter is
equivalent to gas meter counter all the time.
Fig. 7 Processing of volumes during reversed flow
19
PTZ-BOX 3.0
5 Inputs and outputs
5.1 Inputs
A total of 4 digital inputs marked as DI1 to DI4 can be connected to the device.
The inputs are provided at the terminal board inside the device. The digital inputs can
be adjusted as a binary or as a LF impulse by using the service SW. The DI1 and DI2
can also be set as HF NAMUR impulse or as a binary NAMUR type. In devices with
FW ver. 4.xx input DI1 may be setup also for connection with NAMUR encoder.
Input
DI1
DI2
DI3
DI4
Binary
contact
√
√
√
√
Binary
LF
HF
NAMUR
impulse
impulse
√
√
√
√
√
√
√
√
Table 2 Digital inputs setting options
NAMUR
encoder
√
-
5.1.1 LF impulse inputs
Serves to read impulses from a gas meter. The flow measuring function can be
chosen for these inputs. The back-up battery ensures preservation of counters’
conditions and reading the impulses of the LF inputs also in case of the discharge or
replacement of the supply battery. After connection of the supply battery, the
impulses read during missing voltage of the supply battery are added to the error
counters. The LF impulse input is, on the DI1 and DI2 inputs, connected between the
terminals LF+ and LF- (see Fig. 8).
Changing measuring units, setting the gas meter constant
The measuring units of the impulse inputs can be changed using the service
SW [22]. The conversion constants of the gas meter and S/N of gas meter can be set
using the service SW as well, as also directly from the device keyboard. When
setting the value of the gas meter constant, only decimal folds or fractions in range
from 0.01 to 100 are expected.
Number of places of counters of LF impulse inputs
In the case of LF impulse inputs, the counter works with 9 valid digits, the gas
meter constant influences the size of the maximum number from 9 999 999.99 (for
constant = 0.01) to 99 999 999 900 (for constant = 100).
5.1.2 HF impulse inputs (NAMUR)
The inputs DI1 and DI2 can be configured for processing HF NAMUR impulses.
Due to the fact that these sensors require a supply voltage higher than the voltage of
the supply battery of the device, the converter must have an external supply voltage
higher than 7 Vdc (e.g. from JBZ-02) for the registration and processing of HF
impulses.
The flow measuring function can be chosen for these inputs. The back-up
battery ensures the preservation of counters’ conditions in case of a failing external
power supply even in the case of discharge or replacement of the supply battery, but
20
PTZ-BOX 3.0
it does in this case not count the impulses. The terminals for the HF NAMUR inputs
are marked HF+ and HF- (see Fig. 8).
Changing measuring units, setting the gas meter constant
The impulse inputs measuring units and the gas meter constant can be
adjusted using the service SW. The gas meter constant and S/N of gas meter can
be also set from the device keyboard.
Number of places of counters of the HF impulse inputs
In the case of HF impulse inputs, the counter works with 9 digit places.
5.1.3 Connection with gas meter via encoder
Gasmeter can be connected with corrector via an NAMUR encoder. In this case
the digital value of the gas meter counter is transferred into EVC. The use of an
encoder is approved for metrological use by the EC- MID type approval.
NAMUR Encoder
No special HW is required for the use of a NAMUR encoder. The only condition
for NAMUR encoder data processing is the use of an IS external power supply
(JBZ-02 or JBZ-01).
NAMUR Encoder input
Connection between EVC and encoder is made with a shielded two wire cable.
The NAMUR encoder can only be connected via the digital input DI1. Terminals for
the encoder are the same as for HF pulse inputs marked HF+ and HF- (correct signal
polarity is important.). NAMUR encoder connection must be setup in the EVC
parameters with service SW [22].
5.1.3.1 Device specification with encoder
Data from an encoder are transferred into EVC via shielded two wires cable.
Together with the absolute value of gas meter counter there are transferred other
additional data like S/N, gas meter constant, nine positions for counter overturning).
These additional data are read out with service SW [22] usable at device
configuration.
In case of an error in the communication between EVC and encoder then an
asterisk symbol “ * “ after the actual primary volume. Manual setup of primary volume
counter Vm is not allowed at encoder input.
Installation and replacement of gas meter
When the actual counter value of the gas meter is transferred into the EVC after
connection of the encoder and the EVC a big difference might occur at the primary
volume Vm. To prevent against affection of base volume Vb (Vbs) it is necessary to
keep following instruction:
1. In service SW [22]: display device parameters; select subject „Hardware“
and the push button „Change gas meter“. During encoder exchange the
processing of the primary volume from the gas meter will be stopped.
(Follow further follow instructions on the PC display).
2. Physically connect the encoder to the EVC.
21
PTZ-BOX 3.0
3. After connection of the encoder finish installation/exchange with OK button.
During installation/exchange (point 1) no differences are added to the applicable
counters which are marked on display with exclamation mark. If point 3 is not finished
by one hour exchange procedure will be closed automatically at service SW.
5.1.4 Binary inputs
These inputs monitor the input signals with the option of an evaluation of the
condition “connected” (i.e. log. 0) or “disconnected” (log. 1). The device allows
evaluation of binary inputs from no-potential outputs (reed contact or open collector –
these signals are on DI1 and DI2 inputs connected to terminals LF+, LF-) or from
NAMUR sensors (DI1 and DI2 inputs, terminals HF+, HF-). NAMUR sensors require
an external power supply of the converter higher than 7 V (JBZ-01 or JBZ-02).
By setting the parameter, the user can choose the display of the actual values
on the display, storing the changes of these inputs in the archive; display the
headline for condition log. 0 and log. 1, and active signal level.
Fig. 8 Inputs and outputs terminals
5.2 Outputs
The device has 4 digital outputs DO1 to DO4 which can be configured as
binary, impulse, or data. A data output serves the CL1 analogue output module (4-20
mA) which should be connected to this output.
The outputs can be controlled by the device using calculation equations
entered by the user in the device parameters (for example, it is possible to generate
outputs according to the gas flow, indication of alarm condition, exceeding the set
limits of pressure or temperature, etc.).
22
PTZ-BOX 3.0
The device structure allows the generation of outputs even when the device is
powered solely by the battery with no effect on the battery life cycle. The outputs are
“open collector” type and are not galvanic separated. All four outputs have a joint
GND conductor.
The outputs are intrinsically safe, thus when connecting standard devices, the
devices must be connected via a safety barrier (e.g. K3 Module, see
Fig. 9).
Impulse outputs
The impulse outputs have adjustable width and impulse periods in folds of 0.1 s.
Collection of impulses for these outputs can reach max. 65535 pulses. An output
constant can also be configured in the setting equation of the output parameter.
Binary outputs
Output terminals are according to the setting and status in the connected or
disconnected state. In the resting state, the output terminals are disconnected
(condition log.1).
Data output
The digital output configured as a data output serves for communication with
the CL-1 module. An analogue output 4-20 mA can be realized using this module.
Using the calculation equations, the value of the output can be parameterized as
proportional to pressure, flow, daily consumption, etc. The CL-1 module must be
connected to the converter via a safety barrier (K3 module).
+
-
12VDC
U2
230VAC
Safe area
Hazardous area
U4
~
~
230 V/50Hz
OUTPUTS
POWER
12V
DD+
GND
DO1
DO2
DO3
DO4
GND
+
RS232
RS485
D1+
D1 U1+
GND1
9
6
1
5
P2-RS232
DIGITAL OUTPUTS P2-RS485
GND
+
DI4
GND
+
INPUTS
DI2
DI3
GND
DO1
DO2
DO3
DO4
PTZ-BOX 3.0
TxD
RxD
CTS
GND1
GND
DI
GND
U+
DD+
INT. BUS RS485
(optional)
LFHFLF+
HF+
LFHFLF+
HF+
+
+
DIN
12V
Um = 250 V
CL-1
GND
U+
DD+
GND
U+
DD+
GND
U+
P0 – RS485
4-20mA
+
K3 MODULE
6V OUT DIGITAL INPUTS
GND
U+
DI1
DI2
DI3
DI4
DI1
pulse | binary
output (DO1)
Ex i
-
1W
UP+
UPUT
Vce
GND
Pt1000
Pt1000
1. channel (analog)
relay
current output
4-20mA
(DO2)
Fig. 9 Example of an impulse (binary) output and current output scheme
23
PTZ-BOX 3.0
6 Communication with the PTZ-BOX 3.0
For communication with other devices, the PTZ-BOX 3.0 is equipped with one
communication channel with three possible communication interfaces. Either the
communication interface RS-232 or the RS-485 can be used for connection with a
superior system. The optical interface is designed as temporarily connection for
readout or device configuration.
In the current firmware version, the device is equipped with several
communication protocols. The device is prepared for extension by other protocols as
required by the customer. The standardly implemented protocols are VTC and
MODBUS RTU. Pre-set communication protocol is the same for all communication
interfaces. It is possible to change communication speed for fixed connections and
for optical interface independently.
The VTC protocol is the native protocol of the device. A complete set of
functions realized in the device is available. The service SW [22] solely uses this
protocol – in case it is necessary to switch to other link level, the VTC protocol is only
wrapped in one other link level (a so called “a tunnel”). The VTC protocol is used as
the only one for loading firmware (protected by the metrology seal).
The communication circuits are galvanic separated from other device circuits.
Because of the galvanic separation, the communication circuits must be powered
from outside, from a connected device (CTS signal in case of the RS-232 interface
and U1+ in case of the RS-485 interface).
6.1 RS-232 and RS-485 interfaces
Both interfaces are brought out to the internal terminal board and, although they
are simultaneously functioning, only one of these interfaces can be used (connected)
for communication at a time. Because both of the interfaces are intrinsically safe, it is
necessary during installation to separate the device in a potentially explosive
environment from the connected common device (computer, modem, etc.) by a
consecutive device (Sx Module, Kx Module, MTL 5051 etc.), or use a device with an
intrinsically safe design.
The communication speed of the interface (the speed is joint for both interfaces)
and the communication protocol can be set in the device parameters.
Communication via modem controlled by AT commands
Basic setting features of a modem for the correct cooperation with the device:
 Sending answer (ATQ0)
 Long format of the sent answers (ATV1)
 Echo disabled (ATE0)
 Automatic pickup (ATS0=1)
 Set firmly serial port communication speed of the modem (e.g. for speed
38400 Bd is command AT+IPR=38400)
 Ensure presence of power feeding on clamp DSR of the modem (by
command AT&S0). Clamp DSR is connected with CTS clamp of device.
More detailed information must be found in the manual of the used modem.
24
PTZ-BOX 3.0
Communication with GSM and GPRS modems
For the purpose of diagnostics during the modem installation, the device has
the option of displaying the information from the modem on the presence and
connection to a GSM network, and further information on the signal strength
measured by the modem. In the case of a GPRS connection, it is possible to display
the IP address.
Compatibility with the Siemens MC35, MC39 modem is necessary for correct
function in AT commands:
AT+CREG?, AT+CSQ?, AT+CGDCONT and AT^SGAUTH+CGDCONT.
Safe area
Hazardous area
DD+
GND
DO1
DO2
DO3
DO4
GND
+
DIGITAL OUTPUTS P2-RS485
K3 MODULE
POWER
P0 – RS485
GND
U+
DI1
DI2
DI3
DI4
6V OUT DIGITAL INPUTS
GND
U+
OUTPUTS
5
P2-RS232
Um = 250 V
GND
+
DI4
GND
DO1
DO2
DO3
DO4
INPUTS
DI2
DI3
D1+
D1 U1+
GND1
12V
9
6
1
GND
U+
DD+
GND
U+
DD+
PTZ-BOX 3.0
RS232
INT. BUS RS485
(optional)
LFHFLF+
HF+
LFHFLF+
HF+
+
+
DI1
RS485
Ex i
TxD
RxD
CTS
GND1
RS485
1. channel (analog)
1W
UP+
UPUT
Vce
GND
Pt1000
Pt1000
GND
U+
DD+
12 Vdc
Note: Communication output from K3 Module can be RS-485 or RS-232
Fig. 10 Safety separation of communication using module K3 Module for RS-485
HAZARDOUS AREA
DI4
OUTPUTS
POWER
GND
+
6
5
4
3
2
1
RS-232
D1+
D1 U1+
GND1
Ex i
Rx
Tx
RS-422
RS232
INPUTS
DI2
DI3
GND
DO1
DO2
DO3
DO4
PTZ-BOX 3.0
TxD
RxD
CTS
GND1
RS485
Ex i
INT. BUS RS485
(optional)
LFHFLF+
HF+
LFHFLF+
HF+
+
+
DI1
GND
U+
DD+
1. channel (analog)
1W
UP+
UPUT
Vce
GND
Pt1000
Pt1000
SAFE AREA
5V or 12V
Common
MTL 5051
Rx 12
COM 11
Tx 10
Tx+ 9
Rx+ 8
Rx 7
Vs+ 14
Vs- 13
RS-232
20÷30 Vdc
MTL 5051 setting
Switches
OFF
ON
meaning
SW1a
X
---
other modes
SW1b
X
---
5V output
SW2a
RS232 RS422 output interface
SW2b
RS422 RS232 output interface
Note: Communication output from MTL5051 can be RS-232 or RS-422
Fig. 11 Safety separation of RS-232 communication via separator MTL 5051
25
PTZ-BOX 3.0
to PC/RS-232
DSUB-9F
PTZ-BOX 3.0
(view from the soldering side)
clamps
6
RS-232
CTS
CTS
RxD
TxD
GND1
RTS
7
RxD
8
TxD
9
1
2
RxD
3
TxD
4
5
GND
GND
cable KP 065 50
attach shielding with cable gland
Note: Described connection of EVC with the PC without safety barrier
must not be used if the EVC is placed in hazardous area.
Fig. 12 Communication cable wiring
6.2 Optical interface IEC-1107
On the front face of the casing, next to the keyboard, is an optical window for
communication using an optical head. The optical head is to be put to the window. It
is fixed in place using a magnet. One of the HIE-01, HIE-03, and HIE-04 types can
be used as the optical head. After applying the optical head, the device switches over
from the economy mode to the mode in which data can be transferred. It remains in
this mode for 180 s from the last communication (timeout) or until the user takes the
optical head of the communication interface.
Remark:
The HIE-04 is an optical head with an USB connector. Before use the driver for
this Infra-red head need to be installed at the applicable computer.
The communication speed of the optical interface can be set in the device
parameters independently of the speed of the RS-232/RS-485 interface. The setting
of the communication protocol is the same for all three interfaces.
Warning:
After applying the head, the communication channel switches from the RS232/RS-485 device to the optical interface. That means that the communication via
the RS-232 or RS-485 is discontinued until the moment the optical head is removed,
or until the mentioned timeout from the last communication expires.
.
26
PTZ-BOX 3.0
7 Functions
The options of the device regarding displaying the data on the display and
storing the data are extremely variable and customizable. The user has full control
over which parameters will be displayed in the actual values and also which
parameters will be stored in the individual archives.
7.1 Parameter indication
For parameter indication symbols are used that are defined in the table „Used
symbols and definitions“ (see page 1).
Definitions
- For a single channel device no any index is used (Index number 1 or 2 is used
only for two channel configuration)
- For other types of parameters (non-metrological) indexes can be used for
differentiation between the same types of parameters.
User parameter indication
A new SW feature enables the user to define a user specific parameter indication.
Original marking is considered as default (blue marked at service SW [22]). Marking
must comply with marking limitations. These limitations are checked by the service
SW.
Metrological parameters may be renamed only on ASC level.
User defined parameter indication is used for showing on the display and also for the
service SW and exported to 3rd party SW.
7.2 Actual values
For the displayed parameters, the number of the displayed places, units, and
the displayed name can be custom set. If the measured parameter is in an error
condition, such a condition is indicated by displaying an asterisk at the last position in
the line with the parameter name.
Example of parameters which can be displayed as instantaneous values:
 Pressure p
 Temperature t
 Actual volume Vm
 Actual volume under error conditions Vms
 Base volume Vb
 Base volume under error conditions Vbs
 Flow Qm
 Base flow Qb
 Conversion factor C
 Compressibility ratio K
 Device error
 Presence of external power supply
27
PTZ-BOX 3.0


Battery capacity
Internal temperature
7.3 Archives
The values are arranged in the archives in time sections. The combination of
date and time and the values of the parameters selected for archiving form a part of
each time section.
The measured and calculated parameter values can be stored in the following
archives:
 Monthly archive
 Daily archive
 Data archive
 Binary archive
 Limits archive
Besides the listed data archives, the device also contains the following archives:
 Event archive
 Billing archive
 Settings archive
 Gas composition archive
First the archives with a fixed number of records (monthly, daily, binary, and
limits) are stored in the available memory. The data archive is placed in the
remaining memory (its length depends on the size of the remaining memory).
Data
Daily Monthly Limits Binary
archive archive archive archive archive
Analogue values
Input analogue – average value
yes
yes
yes
Internal analogue – average value
yes
yes
yes
Output analogue – average value
yes
yes
yes
Minimum/maximum
yes
yes
Actual volume – absolute condition
yes
yes
yes
Base volume – absolute condition
yes
yes
yes
Error actual volume – absolute condition
yes
yes
yes
Error base volume – absolute condition
yes
yes
yes
yes2)
Impulse values, flow measurement
Max. daily consumption – actual volume
Yes1)
Max. daily consumption – base volume
Yes1)
Max. hourly consumption – actual volume
Yes1)
Max. hourly consumption – base volume
Yes
Yes
1)
Yes1)
1)
Internal counter – absolute condition
yes
yes
yes
Output impulses – impulse debt condition
yes
yes
yes
28
PTZ-BOX 3.0
Data
Daily Monthly Limits Binary
archive archive archive archive archive
yes
yes
yes
Actual flow – average value
Base flow – average value
yes
yes
Minimum/maximum flow
yes
yes
Base factor – average value
yes
yes
yes
Ratio of compressibility factors – average value
yes
yes
yes
Minimum/maximum of conversion, of ratio of
compressibility factors
Binary values
yes
yes
Binary input - condition
yes
yes
Binary output - condition
yes
yes
Set points - condition
yes
yes
yes
yes
yes
yes
yes
yes2)
Conversion, ratio of compressibility factors
Device errors
converters
Internal binary
and
communication
with
yes2)
Other parameters
Counter/timer – absolute condition
yes
Input code
yes
Notes:
1) Date or time is stored with the value (or combination, whichever suitable).
2) Date and time of achieving the minimum/maximum is stored along with the value.
Table 3 Options of archiving the individual values
7.3.1 Monthly archive
Archive capacity: 25 records
The values are saved in the archive once a month at the set “Start hour of the
day“ that each gas company can define (often 6:00 am). The time data of the record
is stored in the archive along with the values. If the archive is full, new data will start
to overwrite the oldest ones. There is an option to store also the statistical values of
gas consumptions and analogue values (see. Table 3).
The record with date 01.06 thus means statistical values of parameters in
interval 1 May 6:00 to 1 June 6:00.
7.3.2 Daily archive
Archive capacity: 400 records (adjustable)
Has similar features to the monthly archive (for the list of options see Table 3);
even here statistical values of gas consumptions and analogue parameters can be
stored. The values are stored in the archive once a day at the set “Start hour of the
day“ (often 6:00 a.m.).
The record with date 13.06 thus means statistical values of parameters in
interval 12 June 6:00 to 13 June 6:00.
29
PTZ-BOX 3.0
7.3.3 Data archive
Archive capacity: variable depending on the configuration of the stored values. The
capacity is displayed during the configuration of the archive in the
service SW.
Archiving period: Adjustable within 1 s to 1 hr.
The parameters in this archive are saved with the set time interval, and the
interval can be set by the user. The pre-set value is 1 hr. In the case of status values,
the archive stores the occurrence of the active state in the applicable archiving
period. For binary inputs, the active state can be set according to the actual status of
the parameterization; log.1 is the active state for set points and errors.
7.3.4 Binary archive
Archive capacity: 2000 records
The archive stores the binary input status, status bites calculated and stored in
the system, and errors of the individual devices. The values are stored in the archive
only if the status of one of the stored binaries is changes. A time/date with a
resolution in seconds is a part of the record.
7.3.5 Limits archive
Archive capacity: 1 record for each monitored parameter
Reaching an extreme (minimum or maximum) value is recorded for the archived
values. The archive saves the value and a time mark. When initiating this archive, the
actual measured values of the specific parameters are set in the registers of
minimums and maximums.
7.3.6 Event archive
Archive capacity: 500 records
The archive stores the date and time of the event change, a status word (64
bits) describes the status of all the monitored events in the device and the status of
the counter of actual volume V and counters of the standardized volume Vb.
This archive, unlike the previous archives, will not overwrite after it has been
filled. The archive content cannot be displayed directly on the display, but it can be
displayed using the service SW on a PC.
7.3.7 Settings archive
Archive capacity: An average of 500 records (depends on length/type of records)
The settings archive stores changes of parameters, especially if they have
effect on metrological features of the device. The archive also stores the identification
of the employee who performed the change. The record contains a time mark,
employee identification, description of his/her activity, and eventually the new and old
values of the parameters which were changed.
This archive, similarly as the event archive and unlike the other archives, does
not overwrite, i.e. after filling the archive up, you cannot add to it and then changing
of parameters is disabled. This archive cannot be displayed on the display, and the
content can only be displayed using a PC.
30
PTZ-BOX 3.0
7.3.8 Billing archive
Archive capacity: 15 records
The device can contain a billing archive. This archive serves as data recorder
with a billing period set at device parameters. There are two possible ways how to
write into this archive: writing according to a pre-set time or periodically at intervals 1,
2, 3, 4, 6 or 12 months. At this time a new record is created of all actual counters,
The billing period is configurable.
7.3.9 Gas composition archive
Archive capacity: 150 records
When gas composition or compressibility calculation method is changed a new
record is stored into this archive. The record contains time and date stamp, previous
used compressibility method and value of gas composition items. If this archive is full
the oldest data records are overwritten. Notice: in the older FW versions changes of
the gas composition are recorded in the setup archive.
7.4 Device configuration
7.4.1 Configuration using the GASCcomm service SW
The device provides a wide range of options regarding its settings. Due to the
wide range, the full configuration can be performed using the supplied GASCcomm
service SW [22] designed for PCs. Besides the device settings, this SW also allows
the read out, display, archiving, and printing of the actual values as well as the
archive contents. Description of the parameterization using the SW is described in
chapter 14 and 15.
7.4.2 Configuration from the device keypad
The device allows the setting of some of the selected parameters directly from
the device keypad, i.e. without using a computer. These parameters are:
 Service parameters: station name, gas hour
 Communication settings: Name of station, communication protocol, transfer
speed, network address, network address 2
 Gas composition (individual components of the gas according to the set
calculation method)
 Date and time in the device
 volume parameters like setup of gas meter constant, Vm, Vms, Vb, Vbs,
S/N of gas meter
7.5 Other device functions
7.5.1 Summer/winter time (DST)
In the device the summer/winter time exchange is implemented and this can be
activated (or deactivated) with the service SW. If activated the device makes time
changes automatically based on selected region (Europe or USA). At the same time
31
PTZ-BOX 3.0
it is necessary to setup the deviation from GMT. In device archives it is indicated
whether record was made in summer or in winter time.
7.5.2 Tariff counters
In the device it is possible to configure up to four tariff counters enabling volume
calculation based on a time schedule. Two independent schedules (Tariff schedule 1
and Tariff schedule 2), are changed mutually in active respectively non-active mode.
Single tariffs are assigned to time slots in single days and parallel days can be
defined like working days, Saturdays or Sundays (or holiday)
Each schedule has own ID number and activation time of each schedule is
adjustable separately.
7.5.3 Remote download
Remote download according to WELMEC 7.2 specifications enables the remote
upgrade of FW. For such purpose the FW is equipped with a unique digital signature
overcoming security system at device.
7.6 Securing the device against a change of metrological
values
The device is equipped with a metrology and a service switch and uses a
password system of protection against an unauthorized manipulation especially with
the data that affects the metrological features of the device. Changes in the device
settings and other acts are stored in the settings archive. This way the device is in
compliance and even above the requirements of the EN 12405-1 standard.
7.6.1 Switch protection
There are two switches located inside the door of the device; the metrology
switch and the service switch. The User switch is located left; the metrology switch is
located right. Both are double dip switches; and both the parts need to be switched.
7.6.1.1 Metrology switch
The metrology switch protects the metrology settings of the device. It is located
on the inside of the casing cover (see Fig. 3) and protected by a label which is
secured by a manufacturer’s security seal (official metrological seal) – see Fig. 5.
7.6.1.2 Service switch
The service switch is located next to the metrology switch (See Fig. 3). Opening
of the device and thus the access to this switch can be protected by a user mark, see
Fig. 5.
The function of the service switch depends on the setting of its functionality in
the parameters in the device. This setting is done via the service SW (menu
Parameters > Meaning of service switch). Here, the user can choose what influence
the switch setting will have on the individual groups of device parameters.
32
PTZ-BOX 3.0
Service switch - Functionality
The user has the option of setting one of the three functionalities of the service
switches in the service SW:
Switch
functionality
Complete 1)
Position
Description
OFF
The writing of parameters in the device is disabled.
ON
Parameters can be written in the device
OFF
The position of the switch does not matter; it is possible to
write in the device. Protection using the switch is
disabled.
none
ON
OFF
Writing in the device is blocked, except writing the nonmetrology parameters (e.g. archiving period,
communication parameters, station identification, setting
system time, etc.).
This method of settings is convenient in the case of
remote transfers of data from the device. It is suitable to
secure it use using a password.
ON
It is possible to write parameters in the device (i.e. the
same as in case of a complete functionality).
partial
Table 4 Service switch settings
7.7
Access passwords
The device works with two passwords: “Password for a complete access” and
“Password for reading”. In the case of a blank password, the password function is
turned off. It is necessary to enter a password with a max. of 6 alphanumeric
characters to make the password system work. Some implemented protocols do not
support using the password system during communication even if the system is
turned on.
7.7.1 Access levels
Regarding the possibility of parameter modification and other operations with
the device, users can have different levels of access.
User level
- Common device user. Users of this level can read out all the data from the
device and set a large amount of parameters. It is not possible to change the
parameters directly influencing the metrology features of the device. For a
more detailed description see Table 5. The protection by the service switch
1)
This meaning is preset by the manufacturer (default setting)
33
PTZ-BOX 3.0
along with the user mark and password system can be used as a protection
against misuse.
Accredited Service Centre (ASC)
- Designed for employees of a center accredited by the manufacturer. The
center is accredited to perform operations on the device regarding its
metrology features. These activities are conditioned by breaking the official
mark, switching the metrology switch and using a special HW key for the
service SW [22] . For description see Table 6.
Configuration of password access is described in paragraph 14.4.
34
PTZ-BOX 3.0
User level
Data readout
Activity
Position of
the service
switch
- Reading the actual values of
parameters
- Reading archives
- Reading parameters
OFF, ON
Allowing activity when using
passwords
 Allowed when passwords turned off,
 With passwords turned on allowed
after entering the “password for
reading” 2)
Non-metrology changes of parameters
- Turning on/off archiving of the
-
Metrological changes
-
individual parameters in the
individual archives
Setting the measuring period
Setting the period of archiving
the data archive
Passwords changes
Zeroing the archives
Setting the internal time
converter
Setting the communication
parameters
Setting the station identification
Setting the start hour of the gas
day
Turning on/off the displaying of
the actual values of the nonmetrology parameters on
display
Configuration of digital inputs
Configuration of digital outputs
Parameter indication change by
the user
ON
 Allowed when passwords are turned
off,
 With passwords turned on allowed
after entering the password for
“complete access” 2)
- Changing the functionality of the
-
service switch on entry of
parameters
Setting the V and Vs counters
Change of calculation method
of compressibility factor
Gas composition setting
Setting measurement units and
constants
Setting default values of
temperature and pressure for
conversion
ON
Table 5 User access level (for “complete” functionality of the service switch)
2
) The effect of the turned-on passwords can be suppressed by using the HW key WGQOI, „service“
version.
35
PTZ-BOX 3.0
Accredited Service Centre level
Position of
metrology
switch
Metrology changes
Activity
-
Activities described in the
user level
-
Upgrade firmware
Change of the metrology
approval option (NMi, ČMI,
MID, etc.)
Setting a reference
temperature
Setting a reference pressure
Setting the Vb, Vbs counters
Configuration of metrology
parameters (C, K, V, Vb, Vs,
Vbs)
Replacement of the
converter
One-point or two-point
calibration of the sensors
Zeroing settings archive and
status archive
Parameter indication change
by the user
-
OFF, ON
ON
Table 6 ASC access level
36
Allowing activities when
Note:
When using HW key, the
effect of passwords is
disabled (when applicable)
Using HW key marked
WGQOI, “Accredited service“
option.
PTZ-BOX 3.0
8 Starting the device
Device is delivered either in operation condition with connected battery or
switched out with disconnected battery.
Device is delivered in switched-out position (no displayed information after
pushing of any button) and battery is placed at battery holder. A blocking foil strip is
placed between battery and holder contact. Putting in operation is performed by
removing this foil strip. This operation is also allowed in the hazardous zone.
Fig. 13 Removable foil strip in the battery holder
In case of a disconnected battery: before inserting the battery into the holder
align up battery polarity with the marked signs on holder. Only the approved type of
lithium battery (see technical device parameters in Chapter 12.) must be used.
When a battery is connected the device is automatically put in operation.
In the basic configuration the device display is switched off when the device is
not manually operated. Pushing any button causes the display to switch on.
Note:
In case of longer storage it is recommended to take out the battery from the
battery holder or at least disconnect battery by inserting foil strip between the battery
and the contact of the battery holder.
37
PTZ-BOX 3.0
9 Operation
The device is not equipped with a power switch; if a supply battery is inserted in
the device, the device is automatically switched on (the device also registers LF
pulses if the battery is taken out).
A 10-button keypad serves for the operation of the device and displaying the
measured and other values. The values are displayed on a graphic display with a
resolution of 128 x 64 points. During battery operation, the display shuts down after
20 s from the last time you pressed any key. The display lights automatically once
you press any key. In case the device is powered by an external source, the display
is permanently on.
You can select the displayed data using the device menu. Displaying the menu
items depends on the set parameters of the device. Content of some menu items can
be custom configured.
Display features






Automatic update of data changing with period 1 s; depending on the selected
scanning time of the sensors.
Auto repeat – when holding a key, the key pressing is automatically
generated, can be used for e.g. viewing archives
Displaying without diacritical marks
In compliance with the EN 12405-1 standard par. 6.3.1.5, the display starts in
the basic display setup. By configuration you can choose a time period after
which the device should go back to the basic display
To simplify the operation for an untrained user, it is possible to display the
actual values by pressing the Enter key. If you are in some menu; you can go
to the highest menu level by pressing the Esc key for several times.
To conserve energy, the device display shuts down after 20 s during battery
operation; It lights up again once you press a key.
9.1 Keypad
9.1.1 Main keypad
In archive display, transition to another
item in the set time cross-section.
In archives, transition to the previous
item in the same time cross section
Movement in time in archives,
movement in a menu
Movement in time in archives,
movement in a menu


Select a deeper level
When displaying the actual values, Enter causes scrolling
through the screen to display all parameters

Transition from a submenu item to a menu of higher level
38
PTZ-BOX 3.0
9.1.2 Quick Access Buttons
QA button 1
QA button 2
QA button 3
QA button 4
Quick Access Buttons are used as a shortcut to lists of important values or often
used menus. These lists or shortcuts can be pre-configured according to your wishes
and can be reconfigured by the user by using the GASCcomm service SW. The
configuration of these buttons is described in Paragraph
9.2 Menu system
The operation of the device is based on selecting from the menu. For the
purpose of further explanation, we will call the basic items the main menu; by
immersion in these items, we get to the lower menu levels (submenu).
If the display was off for a while, pressing any key will light on the initial display
with volume values Vb and V.
9.3
Initial display
If the display was off for a while, pressing any key will bring back the initial
display with Vb and V volume values. (Vb, V, p, t, date and time)
Fig. 14 Initial display
39
PTZ-BOX 3.0
The information about the device basic status is provided through the icons
displayed on the first line in the upper right corner.
Position
Meaning
Symbol
Description
Communication
condition
Communication via infrared head
Communication via GPRS
4
Communication via GSM
Communication via modem
3
Service switch
(user switch)
position
Service switch is in OFF position
Service switch is in ON position
Battery
condition
Battery is charged 100 %
Battery is charged 50 %
2
Battery is charged 25 %
(no
symbol)
1
Device works flawlessly
Device
condition
There is an error in the device
The device generated a warning
message
Additional symbols:
Indicating External power supply;
confirmation
and
for navigation in the menus.
9.4
Menu structure
The device operation is based on items selected from the menu. To avoid
confusion, we will from here call the main menu the highest menu; by selecting these
items, the user can go to lower menu levels (submenus).
40
PTZ-BOX 3.0
9.4.1 Main menu
2nd level
Main device menu
PTZ-BOX 3.0
Measured values
Calculation setting
Device settings
Alarms
Measured values
Actual values
Archive
Frozen moment. val.
Change config.
Calculation settings
Conversion
Defaults
Date and Timing
Change config.
Device settings
Device
Inputs
Outputs
Communication
Alarms
Errors and warnings
History Err and Wrn
Clear history
selection of menu and submenu item
selection of menu and submenu item
*) The menu items can vary from the listed ones depending
on the specific device configuration.
If one of the archives is missing in the menu, it means
that none of the quantities in the device has archiving set
up in such archive.
41
PTZ-BOX 3.0
9.4.2 Measured values menu
42
PTZ-BOX 3.0
9.4.3 Calculation settings menu
2nd level
Calculation settings
Conversion
Defaults
Date and timing
Change config.
3rd level
Conversion
AGA-NX 19
pb
xxxxxxxxxx bar
tb
xxxxxxxxxxx °C
Zb
xxxxxxxxxxx
N2
xxxxxxxxxxxx %
CO2 xxxxxxxxxxxx %
Rel. dens. xxxxxx
Defaults
Stream 1
Date and timing
26.04.2011 13:46:58
Start gas day
6:00
Scan interval
30 s
Change config.
Start gas day
Gas composition
Date/Time
The Conversion menu displays the following data:
 Conversion factor calculation method
 Base (reference) pressure pb
 Base (reference) temperature tb
 Compressibility Zb
 Individual gas components (depending on the selected conversion method)
The Stream (defaults) menu displays the following data:
 Conversion type
 Default temperature
 Default pressure
 Default compressibility
 Calculation method
 Pressure range
 Temperature range
43
PTZ-BOX 3.0
9.4.4 Device settings menu
The Device menu displays the following data:
 Device serial number
 FW version
 Station name
 Battery capacity
44
PTZ-BOX 3.0



Internal temperature
Device test
After selecting this menu item, the device will test its internal status and list
the errors and warning messages on the display. The initiated test of the
device takes a few seconds and has no effect on the measuring and
archiving operations of the device. The order will be carried out regardless
of the service switch position.
A warning is shown on the display during the test. The indicated errors are
marked with prefix “E” and identification number; similarly, warning
messages are marked with prefix “W”. For a complete list of errors and
warning messages see par. 9.4.8.
Device reset
When the device reset is selected, the software jumps to the starting
address and performs a repeated initialization of the entire measuring
system. The contents of all archives and the statuses of all the V and Vb
gas volume counters remain the same during this operation. All the other
set parameters remain the same as well. The order will be carried out
regardless of the service switch position. After the device reset, the initial
display will be shown.
The Inputs menu displays the following data:
- pressure range
 Measuring pressure (p)
- pressure converter serial number
- measuring range
 Measuring temperature (t)
- temperature sensor serial number
- input clamps identification
 Impulse input (V)
- gas meter constant (kp) [imp/m3]
- gas meter serial number
 Digital inputs
The Communication menu displays the values of the following parameters:
 Cable transfer speed (RS232, RS485) [Bd]
 Infrared head transfer speed [Bd]
 Network addresses
 Communication protocol
 Modem communication information (if applicable)
45
PTZ-BOX 3.0
9.4.5 Alarms menu
2nd level
Alarms
Errors and warnings
History Err and Wrn
Clear history
3rd level
sample:
Errors and warnings
list of errors and
warnings
History Err and Wrn
list of historical errors
and warnings
Clear history
Clear history
- if metrologic switch is ON
Errors and warnings
PTZ-BOX 3.0
OK
History Err and Wrn
E0 CRC program
E27 bat.m.capac.
W15 Qb1 min thre
W29 batt.m.EEPROM
Clear history
Not possible
- if metrologic switch is OFF
Errors and warnings
This menu displays the instantaneous status of the device. Pressing the “right
arrow” button will display all the existing errors and warning messages of the
converter one after the other.
History errors and warnings
The history status monitors the occurrence of active errors (of the device status
individual bits) from the last reset. Therefore, even errors and warnings that have
already expired are recorded.
The basic information about the state of the summary status is also indicated as
an icon
or
on the device initial display.
Clear history
After selecting this option via the device keypad or the “Summary status reset”
option from the “Settings – Diagnostics” menu from the PC service software, the
Alarm status will be reset. To allow the initialization, the service switch must be ON.
Should it be OFF, the message “The initialization is not possible” will appear.
46
PTZ-BOX 3.0
9.4.6 Displaying device errors
Error messages are displayed in the “Actual values”, “Alarms” and “Device test”
menus. A diagnostic self-test is launched regularly, a complete device test daily, a
sensors displacement test hourly, or irregularly when the device is turned on. The
test can also be launched by selecting the “Device test” function via the keypad.
The short form of the summary diagnostics is displayed in the right corner of the
highest menu level in the form of abbreviations OK, Err or Wrn. This short form is the
sum of the individual statuses; the highest priority abbreviation is displayed. The
order of the priorities from the highest to the lowest is as follows: Err, Wrn, OK. More
detailed display of the diagnostic information can be obtained via the GASCcomm
service software.
9.4.7 Device status word
The device status word has 64 bits. In case of the monitored bit variation
(changing error or warning status), the whole status word is stored in the Status
archive. The significance of individual bits is described in Tables 1 and 2.
9.4.8 Device status word stored in data archives
To allow saving to the data, daily or monthly archive, a compact status word of
24 bits is defined in the device. This information is stating whether or not the bit (error
or alarm) became active during the applicable interval and it is stored in the archives.
The individual bits are calculated as the sum of bits of the device status word. The
significance of individual bits is described in Table 3.
On the display
E0 CRC program
E1 CRC loader
E2 CRC parameter
E3 memory error
E4
E5 settings archive full
E6 sensor change
E7 sensor
communication
E8 sensor error
E9 battery discharged
E10 compressibility
table
E11 compressibility
error
E12
E13
E14 P1 below the limit
E15 P1 above the limit
E16 P1 error
E17 T1 below the limit
Description
Firmware check sum error.
Loader check sum error.
Device parameters check sum error.
Device memory error.
(FW 2.xx:E3 RAM error)
- not used (FW 2.xx: E4 FLASH error)
Settings archive full.
A sensor was displaced or its parameters were modified.
Sensor communication error.
Sensor error.
Battery is empty (remaining battery capacity is
approximately 10%).
Compressibility table calculation error due to the input
parameters (failure).
Compressibility cannot be calculated due to the range
limitation of the applied standard for compressibility
calculation in measured temperature and gas pressure.
- not used
- not used
Measuring range exceeded
(not indicated in case of FW 2.xx)
47
PTZ-BOX 3.0
E18 T1 above the limit
E19 T1 error
E26 RTC
RTC synchronization error, feed > 2 hours was required.
synchronization
- not used
E27
E28 encoder error
Encoder error (SCR or NAMUR)
Table 7 List of events – error messages (Err indication)
On the display
W0 sensor warning
W1
W2
W3 overload
W4
W5 out of power
W6 Settings archive full
Description
One of the connected converters has sent out a warning
message. More details can be obtained by reading the
converter parameters.
- not used
(FW 2.xx:W1 battery capacity)
- not used.
Overload occurred.
- not used
Network power supply failure occurred.
Settings archive 80% full.
(FW 2.xx: W6 device overload)
Tamper contact 1 active.
Tamper contact 2 active.
W7 tamper 1
W8 tamper 2
W9 P1 below the limit
W10 P1 above the limit
W11 T1 below the limit
W12 T1 above the limit
W13 Q1 below the limit
User limits exceeded
(not indicated in case of FW 2.xx)
W14 Q1 above the limit
W15 Qb1 below the limit
W16 Qb1 above the limit
W17 C1 below the limit
W18 C1 above the limit
- not used
W29
- not used
W30
Table 8 List of events – warning messages (Wrn indication)
Bit
0
1
2
3
4
5
6
7
Display
Description
general error
general warning
ext. power supply error
tamper active
conversion error
General device error.
General device warning.
Network power supply outage occurred.
Tamper active.
Conversion error occurred, conversion executed
into reserve counters.
converter error
Converter error occurred.
range exceeded
Temperature or pressure range of the converter
exceeded.
limits exceeded
Temperature or pressure user limits exceeded.
Table 9 Compact device status word
48
PTZ-BOX 3.0
9.5
Quick Access Buttons
In some cases, it is useful to display a user defined set of variables or specific
often required menu quickly. This can be performed by the 4 QA Buttons.
9.5.1 Changing the display with the QA buttons
The device allows up to four user screens to be displayed. The F1 to F4 QA
buttons can be used for quick display of these user screens.
9.5.2 User screens settings
The individual user screens contents are defined in a data file. This data file, socalled “Quick button map” (*.DB), must be loaded in the device parameters. The
quick screens calls will not work unless this data file is incorporated into the device
parameters.
9.6
Change settings via the keypad
Selected device parameters can be set directly from the device keyboard.
Setting the device parameters from the keyboard can be protected by:
 Service switch (to allow writing, the switch must be ON)
 Password
If the service switch is OFF, the message stating “Parameters setting could not
be completed” will appear on the display.
A maximum of 10 passwords protecting this setting (including the employee
code) can be entered into the device. The passwords must be entered via the service
software. These passwords are valid only for setting parameters from the keyboard
and are not related to the passwords described in chapter. If an empty password list
is entered into the device, the password protection is turned off.
The following parameters can be set:
Menu
Measured values
Calculation settings
Device settings/ Device
Device settings/ Inputs
Device settings/
Communication
Save parameters
Parameters that can be changed
Actual volume (V)
Actual volume under error conditions (Vs)
Base volume (Vb)
Base volume under error conditions (Vbs)
Start hour of the gas day
Gas composition
Date and time
Station name
Serial number of the gas meter
Impulse factor of the gas meter
Baud rate of the fixed lines
Baud rate of the infra-red connection
Address 1
Address 2
Communication protocol
Saving new parameters in the device
49
PTZ-BOX 3.0
By the buttons
and
, you must set the parameter that you want to edit
on the first line of the display (the parameter is displayed with a dark background).
Initiate the editing by pressing the Enter key.
The edited position on a line is marked by the symbol:
parameter editing buttons are:
. The functions of the
Selection of the edited position on a line
Selection and insertion of alphanumeric
character (space, 0 to 9, A to Z, a to z)
End of parameter editing
Saving parameters
Once the parameter editing is finished, the changes must be written in the
device. The recording in the device is executed by selecting this option “Save into
device”. Successful parameters recording in the device is confirmed by the message
“Data valid”.
The totalizers values and current time are recorded immediately after insertion
of the value. Before the value is recorded, the confirmation dialog box will appear;
after confirmation, the value is saved into applicable register.
50
PTZ-BOX 3.0
10 Mounting instructions
The gas volume converter PTZ-BOX 3.0 is a compact device built in sturdy poly
carbonate housing and with IP65 protection. The device is designed for mounting in
hazardous area Zone 1 and Zone 2.
Inside the housing there is next to the covered electronics a battery and if
applied; the internal analogue pressure sensor with input thread M12x1.5 according
to DIN W 3861 for attachment of pressure piping. (The pressure sensor can also be
mounted outside the housing).
On the bottom side of the housing there are 6 metal glands PG7 (IP68
protection) and they are used for the connection of input and output signals with a
conductive connection of the cable shielding.
On the front of the device there is a foil label with display, optical interface for
infrared head communication (HIE-01, 03, 04) and the keypad.
10.1 Mechanical mounting of the device
The device can be easily mounted either directly to the gas meter by using
single-purpose holder for given gas meter type, directly on the wall of the control
station or on the gas pipeline using mounting plate.
Mounting on the wall:
The device is mounted by using 4 screws M4x30 and mounting holes which are
out of IP protected area. Screws are placed in the corners on the bottom of the
housing. Mounting holes for the screws are accessible after opening the housing
cover.
Mounting on the pipeline:
Mechanical mounting of PTZ-BOX 3.0 on the pipeline is made easier by using
an optional mounting plate which can be fitted on a straight pipeline section via a pair
of mounting lugs with hold-down straps.
Lugs with the spacing corresponding to pipeline diameter will be pulled-through
the holes on the mounting plate and all will be pulled on the pipe. On the free ends of
the lugs the M6 nuts with spacers are mounted to hold-down the straps. The
mounting plate can be installed on a horizontal pipe with diameter from DN80 to
DN150 or on a vertical pipe with diameter from DN80 to DN200.
Fastening of the PTZ-BOX 3.0 to the mounting plate is to be performed by 4
screws M4x10 via mounting holes which are accessible after opening the housing
cover. The mounting plate also makes it possible to attach a three way valve
necessary to perform a short verification.
51
PTZ-BOX 3.0
Fig. 15 Mounting of the PTZ-BOX 3.0 to the mounting plate
Fig. 16 Mounting the PTZ-BOX 3.0 to a pipeline
52
PTZ-BOX 3.0
Connection of the pressure sensor
For connection of the pressure sensor we recommend to use weld less
stainless steel pipe 6x1 mm. Connect the sensor to the gas meter output Pm
(previous Pr) eventually it is necessary to use a dedicated weldolet.
The use of a three way valve is shown on Fig. 16. Stainless steel pressure pipe
Connection of the temperature sensor
For connection of the temperature sensor please use the thermowell mounted
on the gas meter. If the gas meter is not provided with a thermowell, please fit a
weldolet and thermowell according to gas meter manufacturer‘s instructions. This
depends on the meter type.
L – thermowell
Including thread
(mm)
50
51.5
80
61.5
100
71.5
150
86.5
200
116.5
250, 300
158.5
400
205.3
Table 10 Assigning of weldolets and thermowells according to pipeline diameter
DN (mm)
Seal
Fig. 17 Temperature sensor mounting
53
PTZ-BOX 3.0
Temperature sensor
Safety nut
Thermowell
Direct weldolet
Fig. 18 Temperature sensor mounting by a weldolet
10.2 Cable connection, grounding
For connecting with another device it is necessary to use only shielded cables.
On the device side the shielding of the cable must be connected with the metal body
of the cable gland (according to Fig. 19). All cable glands of the device are
connected. Thereby is a high resistance against electromagnetic disturbance
ensured.
The temperature sensor and the external pressure sensor (if included) are also
equipped with cable whose shielding is attached to the metal body of the cable gland.
The metal part of temperature sensor is insulated. Metal body of pressure sensor is
connected with cable shielding.
During the installation of the device and connecting of the shielding it is
important to avoid the creating of a ground loop.
It is not necessary to ground the device.
For cable connection (size of the conductors: 0,5 – 1,5 mm2) clamps are
mounted in the device. On the board a description of the signal to be connected is
printed. (see Fig. 8). Before connecting the cables it is necessary first to a apply wire54
PTZ-BOX 3.0
end ferrule on the stripped end of the wire. Wires with ferrules can be plugged in the
clamps without the need of a special tool. During removing it is necessary to slightly
push the nose of the clamp and carefully take out the wire.
Pulse input
External power
feeding
Pulse outputs
RS-232
connection
RS-485
connection
cable type cable diameter Recommended cable type
Unitronic LiYCY 2 x 0.25 Lappkabel Stuttgart
Shielded 2 4 – 6,5 mm
wire cable
Unitronic LiYCY 2 x 0.75 Lappkabel Stuttgart
Shielded 2 4 – 6,5 mm
wire cable
Unitronic LiYCY 6 x 0.25 Lappkabel Stuttgart
Shielded 6 4 – 6,5 mm
wire cable
Unitronic LiYCY 4 x 0.25 Lappkabel Stuttgart
Shielded 4 4 – 6,5 mm
wire cable
Unitronic LiYCY 4 x 0.34 Lappkabel Stuttgart
Shielded 4 4 – 6,5 mm
wire cable
Table 11 Recommended cable types
The manufacturer of Lappkabel Stuttgart guarantees the resistance on their
product Unitronik LiYCY for moving lead-wires in a range -5°C - +70°C and for
immovable lead-wires in range -30°C - +80°C.
12
35
Fig. 19 Shielded connection in the gland
55
PTZ-BOX 3.0
11 Accessories (options)
11.1 Assembly accessories
1 pc mounting plate (metal)
2 pcs mounting legs with straps
for assembly on pipes (for pipes Ø 50 mm, Ø 100 mm, Ø 150 mm.
Specified when ordering!)
1 pc thermowell (length according to the pipe diameter. Specify when ordering)
1 pc of weldolet for the thermo well
1 pc three-way valve or 2 way valve
11.2 Intrinsically safe power supply
JBZ-01 Module
JBZ-02 Module
(power supply from 230 Vac)
(power supply from 12 Vdc)
11.3 Barrier and communication modules
S1 Module, S2 Module
K1 Module, K2 module
K3 Module, K4 Module
11.4 GPRS communicators
AMR1 Module
AMR-BOX
AMR3/S Module
AMR3/E Module
(battery supply of the communicator)
(battery supply of the communicator)
(accumulator power supply of the communicator with solar
charging)
(accumulator power supply of the communicator with
charging from network 230 Vac)
11.5 Other accessories
CL -1 Module
HIE-03
HIE-04
PA1.1
TA1.1
EDT-port
SCR-port
4-20 mA analogue output module
Infra-red head with RS232 communication interface
Infra-red head with USB communication interface
Digital pressure transmitter, type of protection ”i” - intrinsically
safe
Digital temperature transmitter, type of protection
”i” - intrinsically safe
expansion module for digital sensors
SCR Encoder Input Port for Reed encoders
56
PTZ-BOX 3.0
12 Specifications
Mechanical parameters
- mechanical dimensions (w x h x d)
- weight
- casing material
- terminals – conductor cross section
- mechanical class
- electromagnetic environment
…
…
…
…
...
...
170(185) x 170 x 73
1.2 kg
polycarbonate
0.5 mm2 – 1.5 mm2
M2
E2
Environment
- protection
- working temperature
… IP65, According to EN 60529
… -25 °C - +70 °C
Readability of display in ambient
temperature below -20 °C is not guaranteed.
- storing temperature
… -40 °C - +85 °C
- working position
… vertical 3)
- humidity
… max. 95%, non-concentrating vapours
- protection against dangerous touch of live … Small voltage
and non-live parts
Non-explosive design – intrinsically
safety
- indication
- certificate no.
Power supply
- supply battery type
- supply battery life time
- supply battery voltage
- measuring the supply battery life time
- back-up battery type
- back-up battery life time
Power supply from external source
- External source type
- supply voltage of the external source
UPWR
- cable length
… Ex II 1G Ex ia IIC T4/T3
… FTZÚ 11 ATEX 0015X
- ZONE 0
… Lithium 3.6V/17Ah (size D)
Use strictly: SAFT LS 33600
… 6 years 4)
… 2.8 3.6 V
… Yes, alert 90 days before discharge
… Lithium 3.6V/1Ah (size ½ AA)
Use strictly: SAFT LS14250
… 10 years
PWR (GND,+) terminals
… JBZ-02, JBZ-01, Kx Module (IS)
… 4.5 – 10V (Not using NAMUR sensors)
… 7 – 10V (Using NAMUR sensors)
Note: real value depends on type of
connected sensor NAMUR
… 30 m
3
) Recommended working position. In case of a guaranteed dry working environment, the device can
also be installed in horizontal position.
4
) The life time of the supply battery depends on the set mode, and the life time of the back-up battery
depends on the method of using the device without the main battery
57
PTZ-BOX 3.0
Device accuracy, metrology parameters
- measuring principle
- type approval mark
… PTZ converter, 1 channel 5)
… (in accordance with certification type)
Relative error (within scope of working temperatures)
- max. total error of the converter
… < 0,5 % of the measured value (MID)
< 0,3 % of the range 6)
… (version without MID certification)
- typical total error of the converter
… 0.15 % of the measured value (MID)
0.10 % of the range 7)
… (version without MID certification))
- Operational volume measuring error
- Compressibility factor calculation error
- Compressibility factor calculation
… No error
… < 0,05 %
… AGA-8 92DC, AGA NX-19 mod, AGA 8-G1,
AGA 8-G2, SGERG-88, constant 7)
Measuring pressure
- Number of inputs
- Sensor
- certification under MID
- measuring ranges
… 1
… Silicon piezoresistant sensor
…
…
…
…
…
80 520 kPa
200 1000 kPa
400 2000 kPa
700 3500 kPa
1400 7000 kPa (8000 kPa)8)
… 80 1000 kPa 9)
… 400 7000 kPa 9) (8000 kPa) 10)
- measuring error
… < 0.25 % of the measured value
- long-term stability
… < 0.1 % for each year of the measured value
… < 0.2 % for each year of the range
- without MID certification
- measuring ranges
…
…
…
…
…
80 520 kPa
80 1000 kPa
80 2000 kPa
80 3500 kPa
80 7000 kPa
- measuring error
… < 0.20 % of the range 7)
- long-term stability
… < 0.2 % for each year of the range 7)
5
) Even simpler options of conversion can be configured. Supported options are PTZ, PT, TZ and T.
) In case of device version without MID certification the measurement error can be specified in a
percentage from the range.
7)
Selected calculation method of compressibility can involve temperature range. See Table 1.
8
) Calibrated up to 7500 kPa
9
) Enhanced range for extra charge. Cannot be combined with enhanced accuracy.
10
) Calibrated up to 7500 kPa
6
58
PTZ-BOX 3.0
- maximum overload rating
- mechanical resistance
- Connecting pressure
- design
Measuring temperature
- Number of inputs
- Sensor
- measuring range
- measuring error
- long-term stability
- sensor design
… 125 % of the upper limit of the measuring
range
… 10 MPa11)
… tube 6 mm, screwing ERMETO M12 x 1.5
… Internal or
... External, standard cable length 2.5 m max. 5
m
…
…
…
…
…
…
- length of external sensor cable
1
Pt 1000, platinum resistor detector
-25 +60 ℃
0.2 ℃
< 0.02 % for year (relative error in K)
tube 5.7 mm, length 120 mm with
integrated cable
… Standard 2.5 m, max. 10 m
Internal temperature measuring
- measuring error
… 3 °C
Real time circuit
- long-term stability
… 5 min / year at 25 °C
Digital inputs
- number
- input options
- length of cable for the individual inputs
INPUTS terminals
… 4
… LF impulse input, HF impulse NAMUR input,
binary input low-input, binary NAMUR input
… 30 m
- min. time of status duration
- open circuit voltage
- Shortcut current
- level “ON”
- level “OFF”
… Terminals DI1(LF+/-), DI2(LF+/-), DI3, DI4
… 4
… Low-input input – connecting reed contact or
no-potential output
… 100 ms
… 2.5 V - 3.6 V
… Approx. 3 A
… R < 100 k or U < 0.2 V
… R > 2 M or U > 2.5 V
LF impulse input
- Max. number of inputs
- max. frequency
- input type
…
…
…
…
Binary input - classic
- Max. number of inputs
- input type
- min. length of pulse / pause
- open circuit voltage
- Shortcut current
Terminals DI1(LF+/-), DI2(LF+/-), DI3, DI4
4
10 Hz
Connecting reed contact or no-potential
output, WIEGAND
… 40 ms
… 2.5 V - 3.6 V
… Approx. 3 A
11
) Will damage pressure converter, the gas-tightness remains the same.
59
PTZ-BOX 3.0
- level “ON”
- level “OFF”
… R < 100 k or U < 0.2 V
… R > 2 M or U > 2.5 V
Binary input - NAMUR 12)
- Max. number of inputs
- input type
- min. length of pulse / pause
- open circuit voltage
- Internal resistance
…
…
…
…
…
…
Terminals DI1 (HF+/-), DI2 (HF+/-)
2
NAMUR (DIN 19234)
200 ms
UPWR
1 kΩ
HF impulse input – NAMUR 13)
- Max. number of inputs
- max. frequency
- input type
- min. length of pulse / pause
- open circuit voltage
- Internal resistance
…
…
…
…
…
…
…
Terminals DI1 (HF+/-), DI2 (HF+/-)
2
5 kHz
NAMUR (DIN 19234)
100 μs
UPWR
1 kΩ
Input NAMUR ENCODER
- Max. number of inputs
- type
- type of input
- cable length
…
…
…
…
Terminals DI1 (HF+/-)
1
NAMUR (DIN 19234)
Absolute ENCODER S1
30 m
Digital outputs
- number
- outputs options (SW configuration)
- Output types
- length of cable for the individual outputs
- without galvanic separation
… OUTPUTS terminals
… 4
… Impulse output, binary output, analogue
output (via CL-1 Module)
… Open collector
… 30 m
Binary output
- Max. number of outputs
- max. voltage
- max. current
- max. resistance in connected status
…
…
…
…
DO1, DO2, DO3, DO4 terminals
4
15 V
100 mA
10 Ω
Impulse output
- Max. number of outputs
- max. voltage
- max. current
- max. resistance in connected status
- time of connection
- time of disconnection
…
…
…
…
…
…
…
DO1, DO2, DO3, DO4 terminals
4
15 V
100 mA
10 Ω
Programmable 0.1 s – 25 s (step 0.1 s)
Programmable 0.1 s – 25 s (step 0.1 s)
Analogue output
- Max. number of outputs
- Output type
DO1, DO2, DO3, DO4 *) terminals
… 4
… Current output 4-20 mA (using one CL-1
Module per output)
12
) The device must be powered from an external JBZ-01 Module or JBZ-02 Module.
) The device must be powered from an external JBZ-01 Module or JBZ-02 Module.
13
60
PTZ-BOX 3.0
*) necessary to connect an external module CL-1 using the JB separator (e.g. K3 Module)
Connection of external sensor via EDT-port
– optional (communication line RS-485 internal bus)
- Expanding module marking
- Communication interface for sensor
- communication protocol
- max.number of connected modules
- max. length of cable of sensor
- recommended type of pressure sensor
- recommended type of temp. sensor do
Interface for communication with
superior system
Metallic interfaces
- galvanic separation
- Interface of serial communication
- Communication protocol
- Communication speed
- Byte format
…
…
…
…
…
…
…
EDT-Port
RS-485 (intrinsically safe)
MODBUS RTU
1
100 m
PA1.1 (intrinsically safe)
TA1.1 (intrinsically safe)
… All three interfaces share the same
communication channel and cannot be
operated simultaneously
yes
… RS-485 or RS-232 (not possible
simultaneously)
… Optional, according to the firmware version
… 9600 Bd – 57600 Bd, adjustable
… 8 bits, 1 stop, without parity
RS-232 line
- connection via IS separator
- cable length
… RS232 terminals (GND1, CTS, TxD, RxD),
E.g. MTL5051
… 30 m
RS-485 line
- connection via IS separator
- max. cable length
… RS485 terminals (GND1, U1+, D1+, D1-)
… K3 Module, K4 Module
… <100 m
IEC-1107 interface (Infra-red)
- Communication speed
… 9600 Bd to 38400 Bd
Possible inputs / outputs configurations
Binary input
Classic
NAMUR
DI1
DI2
DI3
DI4
YES
YES
YES
YES
YES
YES
-
DO1
DO2
DO3
DO4
Binary
output
YES
YES
YES
YES
Impulse
output
YES
YES
YES
YES
Impulse input
LF
HF
(NAMUR)
YES
YES
YES
YES
YES
YES
Data
output*)
YES
YES
YES
YES
61
PTZ-BOX 3.0
13 Intrinsically safe parameters
HF inputs NAMUR DI1, DI2:
Uo = 10V
Io = 11mA
Po = 27mW
Co
Lo
IIC
IIB
2,8F
200mH
18F
700mH
HF+, HF- (INPUTS) Terminals
LF inputs and binary inputs DI1, DI2, DI3, and DI4:
terminals
Uo = 6.5V
Io = 8mA
Po = 15mW
Co
Lo
IIC
2,8F
200mH
IIB
18F
700mH
RS485 communication line – internal bus (optional):
Uo = 6.5V
Io = 1A
Po = 1.1W
Co
Lo
IIC
3,5F
30H
LF+/-, DI3+/-, DI4+/- (INPUTS)
Terminals GND, U+, D-, D+
IIB
250F
120H
Digital outputs DO1 to DO4:
Ui = 15V
Pi = 1W
Ci = 500nF
Li = 0
Terminals GND, DO1, DO2, DO3, DO4 (OUTPUTS)
External power supply: PWR (GND,+) terminals
Ui = 10V
Ii = 0.2A
Pi = 0.33W (Pi = 0.41W only for JBZ-02, JBZ-01)
Ci = 0
Li = 0
62
PTZ-BOX 3.0
RS485 communication line – communication with superior system: Terminals GND1,
U1+, D1-, D1+
Ui = 10V
Pi = 0.33W* (sum of outputs in RS485 and RS232)
Ci = 2.8F
Li = 0
RS232 communication line – communication with superior system: Terminals
GND1,CTS, TXD, RXD
Ui = 20V
Pi = 0.33W* (sum of outputs in RS485 and RS232)
Ci = 200nF
Li = 0
or
MTL5051 (only terminals 1,2,5,6)
* Note: Sum of outputs is defined jointly for both interfaces, i.e. sum of outputs on
RS485 and RS232 must not exceed 0.33W except MTL5051.
The battery used in the device are in the hazardous waste
category. The used batteries can be returned to the
63
manufacturer.
PTZ-BOX 3.0
14 Configuration
After assembly and connection of the device in the measuring place it is
necessary to set several device parameters (gas meter serial number, gas meter
constant and station identification, etc.). Configuration of the device is performed with
the GASCcomm service SW. The installation process is started with running the file
SETUP.EXE
For parameters setting is necessary to have the service switch in the “On”
position.
14.1 Checking after installation
Recommended points for correct device function:
 check of system time in the device (see paragraph 14.3.3)
 check compressibility algorithm and gas composition setting (see Fig. 21)
 adjust gas meter constants and gas meter serial numbers setting (see
paragraph 15.2.
 set default pressure and temperature values (see paragraph 14.3.5)
 adjust actual values of counters according to gas meter volume indication (see
paragraph 14.3.6)
 check device diagnostics, solve possible problems, initialization of device
summary status (see paragraph 14.3.7)
 clear device archives (see paragraph 14.3.8)
According to configuration, it is necessary to adjust other functions and controls
(output settings, external power supply, etc.) during installation. Archives clearing
and summary status clearing must be completed at the end of the adjustments. At
the very end of configuration changes switch the service switch in „Off“ position.
Notes:
1. Metrological device parameters are set by the manufacturer so that the device will
work according to customer’s requirements. Metrological values settings are
protected by HW key and metrological switch. This switch is secured with an
authorized seal.
2. The possibility to set other device parameters is protected with service switch, or
with a password.
3. The device is delivered without active passwords.
14.2 Connecting the PTZ-BOX 3.0 with a PC
The device can be connected with a PC either by a serial interface (RS-232, or
RS-485), infrared-head (HIE-01, 03, 04) or via a modem.
For device setting in the field the best is to use an infrared-head (with RS232 or
USB connection) or a RS-232 cable (see 6.1). In case of communication through the
infrared-head this communication has the highest priority and the device will
automatically switch over to this communication when the IR head is attached.
64
PTZ-BOX 3.0
Warning:
If is the PC used in the explosive area (ZONE 1 or ZONE 2), then all protecting
norms and regulations must be followed.
Communication parameters (default setup)
In the device the following parameters for connection with PC (or modem) are preconfigured:
Communication speed, interface RS232/RS485
38 400 Bd
Communication speed, optical interface of infra-red head
9 600 Bd
Communication protocol
VTC
Communication address of device (see further)
Address1=0
Address2=0
14.3 Configuration with the GASCcomm software
When the device is connected with a PC, it is possible to start-up the
GASCcomm service SW with double-click on the „exe file“. After the SW is starting
already defined devices (gas stations) are displayed see Fig. 20. In this list for each
device one line is configured. In each line all parameter for device identification and
for communication are specified. User may edit parameters easily with double-click
on each window. By some parameters symbol of arrow is displayed in the right
corner. By clicking this arrow the user can choose from several possibilities. When
the user cannot find the device in the list or the list is empty, it is necessary to make a
new line with the definitions of the new device (station). A new line is created after a
click on the „+“ icon. The parameter setting of a new station is the same as editing of
an existing station.
14.3.1
Parameters setting of a station
At all stations columns arrange the identifying data and data that are necessary
for communication.
 Station description – users description of the station
 Station identification – short station indication; this indication (name of the
station) must be the exactly the same as the indication that is written in the
device memory.
 Tel. no. – only fill in, when you will have communication via a modem. Fill in
the telephone number of modem, which is connected with PTZ-BOX.
 IP address: port – complete only in case of LAN network or GPRS
connection (IP address to be issued by the network administrator)
 PTZ-BOX - choose No! (Only applicable for communication with older
models: PTZ-BOX V1 or V2).
 Name of comm. channel – after double-click choose communication channel
(description – see paragraph 14.3.2)
 Addr.1, Addr.2 – if you have only one connected device choose zeros – in a
communication network choose the actual address of the device you
communicate with.
 Protocol – Choose the same which is set in the device. For establishing the
first communication, the device set communication protocol is VTC
65
PTZ-BOX 3.0
Fig. 20 Station setting
Note for parameters Addr.1, Addr.2:
Parameters Addr.1, Addr.2 are connected with the specific device that is
connected to the PC in the given station. In case that this station includes more
connected devices then is necessary to differentiate devices by these addresses.
For connecting the PC with a conversion device the right addresses as configured
in the PTZ-BOX must be mentioned (see 14.3.5). In case, that only one device is
connected it is possible to leave these parameters zero.
WARNING (in case of working with MODBUS protocol):
In case of using MODBUS protocol (see 15.7) only address Addr.1 is used.
In this case you cannot use zero as address; you have to use the (non-zero)
address Addr.1 which is set in the device (in range from 1 to 247) or you may use
universal address Addr.1 = 248. The device will answer on this address always.
If are all data in the line are set in the right way, then the station is set and
communication between PC and device is ready for testing. This can be done by
reading the actual values (menu Readout -> Actual values).
14.3.2
Communication channel setting
For successful communication between the device and the PC the
communication channel must be correctly set. For each communication channel the
correct communication interface, communication speed, etc. must be chosen.
Setting progress
 Choose menu: Options –> Communication channels
 In case of adding a new device into the GASCcomm service SW it is possible
to choose an already defined communication channel or to define a new
communication channel with the button „+“ see Fig. 21.
66
PTZ-BOX 3.0

Setting of a new communication channel starts with the choice of the
connection between device and PC (program switch Communication
medium). For instance for communication via infrared-head choose RS-232
or USB and relevant communication port. After this selection a new
communication channel will be added in the table Configuration of
communication channels.
Configuration of communication channel:
 name of the communication channel – here assign your own indication (in
case of more communication channels that is better for the identification)
 Speed of communication channel:
 communication via infrared-head HIE-03,04 – communication speed up to
38 400 Bd (older model HIE-01 - communication speed 9600 Bd)
 communication via serial port – Communication speed up to 38,400 Bd.
 communication via modem – communication speed is set according to
communication speed of modem.
 Other parameters are without changes.
Fig. 21 Adding a new communication channel
After complete definition of the new communication channel a new setting is
saved by pressing the button OK. The new defined channel may be chosen by
setting of station settings (see paragraph 14.3.1).
14.3.3
Checking and setting of the system time
In the device is a real time clock with a calendar. It is possible to display actual
date and time on device display via the menu Calculation settings -> Date and
Timing or by reading out of the actual values with the GASCcomm service SW. The
item Setup -> Date and time in SW menu allows changing these values.
67
PTZ-BOX 3.0
14.3.4
Downloading and uploading parameters in the device
The user may readout parameters from the device via the menu Readout ->
Parameters.
After parameter readout the data from the device are displayed in a separate
window. With the button with the
display modes:
icon you can switch between two types of
a) Simple mode display
On the screen base device parameters are displayed and the settings can
be changed (see Fig. 22 and Fig. 23).
Fig. 22 Base device parameters
68
PTZ-BOX 3.0
Fig. 23 Data archive
69
PTZ-BOX 3.0
b) Full mode display
All parameters are displayed in a tree structure. This type of display is for
advanced users.
Fig. 24 Base parameters – Full mode display
In the simple mode it is possible to set followings:
a) System parameters – allows identification settings, communication settings,
service parameters setting and setting of parameters for conversion.
b) Structure of individual archives. With a simply check-mark parameters are
assigned for displaying or for the applicable archives.
c) Actual values of counter
d) Error values of temperature, pressure and constant value for a fixed
conversion factor.
e) Set points or settings of limits, if these limits already exist.
f) Output pulses – permission or blocking of already defined output pulses
generating
A changed configuration can be saved into the PC memory. Record into the
device can be made after the configuration is finished by pressing the button
„Save into device“.
Warning:
In some cases (a, b) the change of the setting results in clearing of some
archives.
70
PTZ-BOX 3.0
14.3.5
Device configuration with the assistant
For easier device configuration the GASCcomm SW comes with a user-friendly
and simple assistant. User can start up this assistant with click on the icon in the
toolbar of the (system) parameter window (see Fig. 25). With the selection of
Installation of telemetric system in the Wizard for editing of parameters the
configuration starts.
Fig. 25 Assistant for configuration
The configuration assistant guides the user through the setting of some
parameters.
The meaning of all parameters is described on a lower window frame.
Fig. 26 Configuration of identification and communication
71
PTZ-BOX 3.0
On the first screen it is possible to set the station identification, station address
in the network (Address 1 and Address 2), communication protocol, communication
speed, frequency of recording into the archives and the measuring period.
Address 1 is ranging from 0 to 65535; Address 2 from 0 to 255. For the
MODBUS protocol Address 1 ranges from 1 to 247 and Address 2 is not used.
After the button Next is pressed the following screen will be displayed, which is
determined for the setting of the Gas composition. First the compressibility method
must be chosen. According to the chosen method a pre-set gas composition is
indicated. The user can set gas composition according to actual values.
Fig. 27 Gas composition configuration
Note:
The parameters are changed according to the chosen compressibility method
that is chosen in the first line. In the case of a fixed value of this parameter it is
configured in following steps (see Fig. 28 ).
After pressing the button Next Setup of 1. channel (or Setup 2. Channel)
follows.
On this screen it is possible to set following channel parameters:
 Gas meter values are set in the first line V01, Q01 Primary volume V1, Flow
Q1 it is indicated as Input pulse /Base unit. The set value is for volume V1
increment and for the Flow Q1. If gas meter has a HF output, then is the range
limited only on decimal multiples and most of the time the impulse values need
to be adjusted later.
 The Gas meter serial number is set in the line V01 Primary volume V1 and
is marked Serial number
 The default pressure value (which is used when the device is in error status)
is set in the line C01 Convers. factor C1 and is marked as Default const.
pressure.
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PTZ-BOX 3.0

Default temperature value (which is used when the device is in error status)
is set in the line C01 Convers. factor C1 and is marked as Default const.
temperature.
 Setting of the default compressibility value is set in the line C01 Convers.
factor C1 and is marked as Default const. compressibility. This
compressibility value is used in calculation only if there is no compressibility
calculated according to mathematical methods.
Fig. 28 Channel setting
With pressing the button Next follows analogous screen Setting 2. channel.
(not applicable for the PTZ-BOX 3.0)
This is the last step of Assistant for configuration. Other settings can be
made in the normal configuration screens
Note:
After closing the wizard for configuration parameters are prepared in the
software for writing into the device. Therefore do not forget to write these into the
device using the button „Save into device“ before closing this page. For writing the
parameters into the device is necessary to have the service switch (user switch) in
the position „On“. After the parameters were saved switch over the service switch
(user switch) in the „Off“ position.
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PTZ-BOX 3.0
14.3.6
Setting of Actual (primary) volume counter
It is useful to adjust the counter of the volume converter to the value that is
indicated at the gas meter. In the screen that shows the device parameters (Fig. 29 –
simple parameters display) choose Actual value and in the column “Value” write the
applicable values.
Fig. 29 Actual (primary) volume counter setting
14.3.7
Device diagnostics and clearing History
Device diagnostics may be done: a) by the device keyboard
b) by the GASCcomm service SW.
a) In menu „Alarms“ are saved information about device condition:



„Errors and warnings“– shows current device status. With pressing
the button „Right arrow“ there are displayed all actual errors of the
device one by one.
„History errors and warnings “ – serves for instance for monitoring of
active conditions of single device bit status from last summary status
clearing.
„Clear history“ – clears the history.
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PTZ-BOX 3.0
b) In SW on PC (Fig. 30)
Menu choice „Setup -> Diagnostics (status) of the device -> From
device“ will be read out the errors and warnings from the connected device. It
is possible to find out current status of the device with pressing: Device
settings -> Device ->Device test.
Fig. 30 Displaying of device diagnostics
In column „Summary status“ there are all errors from the last reset of summary
status. The central button at bottom part of window can be used for reset.
A table with the description of errors and warning messages and
procedures how to remove them are shown in chapter 9.4.8.
14.3.8
Clearing archives
This operation can be made only with the GASCcomm service SW. In the menu
(see Fig. 31 ) it is possible to clear archives selectively or all archives at once (except
Setup archive).
Warning:
Deleted data in archives cannot be recovered!
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PTZ-BOX 3.0
Fig. 31 Clearing of the archives
14.4 Password in the device
It is possible to use the device either without passwords or with password
protection. Password can be set by the GASCcomm service SW. It is possible to set
a password for reading and/or for full access. The device asks for providing the
passwords only if passwords are activated.
-
With the password for reading it is possible to readout data from the device.
Password for full access allows to readout data and to write data into the
device.
The GASCcomm service SW remembers the password until its restarted, so it
is not necessary to enter the passwords again during reading or writing. Passwords
may be set in the menu
Setup –> Password for reading; Password for full access.
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PTZ-BOX 3.0
Fig. 32 Password setting
Note:
1. The password will not be activated (or de-activated) if you fill up an “empty”
password during password setting.
2. Maximal length of password for reading and for full access is 6 characters.
3. Password system can be changed by the administrator
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PTZ-BOX 3.0
15 Configuration examples
In this chapter are examples of the most common device configurations. The
device configuration is made by using the GASCcomm service SW.
First the file of device parameters must be displayed:
1) Parameters of the device connected to the PC:
menu Readout -> Parameters
2) Parameters readout form the device in the past:
menu Setup -> Parameters (select a saved file with suffix *.par)
Notes:
1) Changes of the parameters are made in the PC memory. They are saved into
the device after pressing the button Save into device.
2) Described examples of configuration may be performed by users without
applying the hardware key (except indicated exceptions). For saving the
parameter file into the device it is necessary to have the service switch (user
switch) in the „On“ position. After finishing it is necessary to switch the service
switch back to „Off“ position.
15.1 Parameters display modes
In the GASCcomm service SW it is possible to choose between two modes of
displaying the device parameters:
a) Simple mode display
Base device parameters are displayed on the screen with the possibility of
changing the settings.
b) Full mode display
All parameters are displayed in a tree structure. This type of display is
determined for advanced users.
It is possible to switch between both modes by the
icon, at the toolbar (see
Fig. 33). It is possible to set the default mode in the menu Options -> Programme
parameters -> Other parameters. Described types of parameters settings are for
both types (if possible).
15.2 Setting the gas meter impulse factor
It is necessary to set gas meter factor (in the GASCcomm service SW marked
as a relation pulse input/base unit) during installation or after gas meter replacement.
15.2.1
Simple mode display
In this paragraph the setting of gas meter constant in the simplified display is
described. Enter the gas meter factor in the line “Primary volume V1” in imp/m³ or in
other volume units if applicable. Into column S.N. in the line “primary volume” write
gas meter serial number.
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PTZ-BOX 3.0
Fig. 33 Setting the gas meter factor in simple mode display
Values of constants from item V01 are automatically copied into item Q01. If
applicable (not for PTZ-BOX 3.0) the same rule stands for V02 a Q02, because this
constant is used for counting of both parameters.
15.2.2
Full mode display
It is necessary to make the setting separately for:
a) – counting of Primary volume V1 (or V2)
b) – estimation of Flow Q1 (or Q2).
In this display mode the constant chosen for one parameter (V) is not
automatically copied for the second parameter (Q).
Warning:
Practically it means that we can have for V and Q two different constants; which
most of the time is not what we want!
Example 1 – Gas meter with LF output:
The program allows setting the gas meter factor with LF output in the range of
the followings values: 0.01, 0.1, 1, 10, 100 or 1000 pulses/m3. The set value must be
written into the field Input pulse/Basic unit. This progress for Primary volume V1 is
displayed on Fig. 34. The same procedure is to be used for Flow Q1.
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PTZ-BOX 3.0
Fig. 34 Setting gas meter factor for LF pulses in full mode display
Example 2 – Gas meter with HF output
For gas meter with HF output HF must be selected. Fig. 35 shows setting of gas
meter with the HF output factor on a value of 82.5564 pulse/m3 and a serial number
of the gas meter 1212222. Here it is also necessary to make the same setting for the
Flow Q.
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PTZ-BOX 3.0
Fig. 35 Setting of gas meter factor for HF pulses in full mode display
15.3 Pulse outputs setting
Pulse output may be used for instance for controlling of odorization, preheating
or as an output for management systems, dispatching, etc.
15.3.1
Simple mode display
Configuring this type of output it is possible only if this output was already
created in full mode display. Then it is possible (in simple mode display) to switch this
output on or off by using the button Output pulses, binary (see Fig. 36).
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PTZ-BOX 3.0
Fig. 36 Switching on and off output pulses
15.3.2
Full mode display
In case this output was not configured it is necessary to configure it and assign
a parameter. It is necessary to set technical parameters of output pulses as well.
1. Inserting an output into parameters
In left upper window choose item Hardware, press right mouse button -> Insert
output measurand ->Counter (pulses) output measurand (Fig. 37).
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PTZ-BOX 3.0
Fig. 37 Configuring a pulse output
Then a module of Pulse output counter will be created e.g. with indicated V03o
(see Fig. 38).
Fig. 38 Pulse output configuration
Now a hardware pulse output is configured. The device offers possibility of four
digital outputs. These outputs are connected to clamps (DO1 to DO4). Item Output
No. indicates on which clamps of OUTPUT terminal block is this output connected:
Output No. 1 – clamp DO1
Output No. 2 – clamp DO2
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PTZ-BOX 3.0
Output No. 3 – clamp DO3
Output No. 4 – clamp DO4
The programme assigns automatically free output clamp (in our example DO3). But it
is possible to swap.
2. Setting output pulses properties
 Connected time – range of output pulse. Minimal range is 0.1 s. It is set in
complete multiples of this value.
 Disconnected time – time between pulses. Setting of this is the same as for
connected time.
 Enable output – with this choice is possible to enable/disable a configured
output (is the same like in simple mode).
 Unit –the measure unit for output information (e.g. m3)
 Basic unit / Display unit – leave value 1
 Input pulse / Basic unit – leave value 1
3. Output measurand and output constant
Till now it was not defined which measurand (e.g. actual volume or base volume
etc.) should the measure for the pulses. In the next step it is necessary to connect
this output counter (V03o) to the required parameter. Assignment of this parameter is
performed by the equation tool. Press the button Create new equation in the frame
Source of value with help of the Wizard for mathematic expression (see Fig. 39).
This example creates the Equation module (Fig. 40). In this case the equation
Eq03 is to be used for output pulses of the base volume generated at the first
channel (total of the base volume counter and of the error base volume counter). The
equation is for the output V03o. The mathematical expression defines the input
value. In this case the expression looks like:
V03o = dVb1+dVbs1
- it means that the output value V03o is the sum of:
dVb1 d (=difference) of base volume V1 of the first channel. In case of actual
volume there would be dV1.
dVbs1 d (=difference) of base spare volume V1 of the first channel.
If necessary multiply this output with an output constant. E.g. if the constant
should be 6.53, then it is necessary to adjust the mathematical expression to:
(dVb1+dVbs1)*6.53
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PTZ-BOX 3.0
Fig. 39 Wizard for mathematical expressions
Fig. 40 Equation for base volume pulses and output connection
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PTZ-BOX 3.0
After this, the related equation is in the V03 module displayed in the frame
Source of value. To make changes in equation press the button Skip on source
(see Fig. 41).
Fig. 41 Parameter V03 after equation assigment
15.4 Analogue output setting
Analogue output can be used for instance for the display of actual gas
consumption or for pressure or temperature in a pipe line.
An analogue (current) output from the device (4-20 mA) is made by an
additional hardware module (CL-1) connected to the clamp of digital device outputs
(DO1 to DO4). The used digital output must be configured for connection with the
CL-1 module. The CL-1 module itself cannot be configured since the analogue output
parameters are in the PTZ-BOX. Up to 4 CL-1 units (for 4 analogue outputs) can be
connected to the PTZ-BOX.
15.4.1
Simple mode display
In the simple mode this output cannot be configured. Only if this output was
already configured in full mode it is possible to switch on or switch off this (see Fig.
36).
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PTZ-BOX 3.0
15.4.2
Full mode display
This procedure is similar with the procedure for pulse output. From the item
Hardware (in the left upper window) Insert output measurand must be chosen and
then Data output for CL-1 (see Fig. 42).
Fig. 42 Analogue output setting
On the Analogue output module (see Fig. 43, parameter A06o) the Output
number gives appropriate hardware connection (DO1 to DO4) where the output
signal will be sent to and where module CL-1 will be connected to.
Fig. 43 Analogue output configuration
In the following step press the button Create new equation again.
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PTZ-BOX 3.0
Fig. 44 Wizard for creating an analogue output equation
On the first screen choose Current output, on the second screen choose the
parameter for which you want an analogue output and then assign the values of
minimum and maximum limits corresponding with a 4mA signal and a 20 mA signal.
After the wizard is finished the equation for the analogue output is displayed
(parameter A06 see Fig. 45).
Fig. 45 Equation for analogue output
The resulting form of the generated equation is:
A06o = (Qb1*16+48000)/12000
From the equation it is possible to see that for Qb1=0 the equation result in
A06o=4 mA and for flow Qb1=12000 the result is A06o=20 mA. See Fig. 46.
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PTZ-BOX 3.0
Fig. 46 Analogue output with equation on output clamp DO4
15.5 Limits of measured values
In many cases it is important to monitor limits of measured values. Because of
that it is possible to configure so-called Set points. Set points may be defined either
as a minimum or maximum value of a parameter. In case that a monitored parameter
will be over the limit then a record will be written into the data or binary archive. Also
the error status can be activated or the device may automatically call supervisory
system.
15.5.1
Simple mode display
In this mode it is only possible to change already configured limits.
15.5.2
Full mode display
In the left upper window of the displayed parameters choose the item
Calculated measurands. Press the right mouse button and choose Insert counted
measurand –> Set point (see Fig. 47).
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PTZ-BOX 3.0
Fig. 47 Set point setting
Example:
If the measured pressure p1 will exceed the value 120 (kPa) and this is the
case for more than 5s, the alarm will be generated (see Fig. 48).
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PTZ-BOX 3.0
Fig. 48 Set point configuration
15.6 Monitoring the external power supply
With the following process it is possible to watch the external power supply. The
information about the power supply condition can be saved into the data or the binary
archive; it is possible to initiate an alarm signal or to make a call to dispatching. To
configure choose the item Hardware. After pressing the right mouse button choose
Insert input measurand->External power (see Fig. 49.)
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PTZ-BOX 3.0
Fig. 49 Configuration the monitoring of the external power supply
When the external power supply fails for more than 3 seconds an alarm signal
will be generated (see Fig. 50).
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PTZ-BOX 3.0
Fig. 50 Monitoring setting of external power supply failure
15.7 Setting of communication with MODBUS protocol
Standardly shipped devices are not configured for communication through a
MODBUS protocol. The instruction for the configuration for MODBUS follows
hereafter. Initial conditions:
 MODBUS protocol can be set only in devices with firmware version 1.12 and
higher
 The MODBUS protocol for reading of archived values is adjustable only in FW
version 1.16 and higher.
 for configuration of this communication it is necessary to have a prepared
MODBUS template sometimes called MODBUS map (file with extension *.db,
placed in subfolder Modbus).
MODBUS template:
 Is a pre-defined table of MODBUS addresses with device parameters. In the
table is also information about the type of the parameter (reading or also for
writing). Vemm tec offers a standard template for one-channel or two-channel
devices. On demand vemm tec can adjust the template according to
customer’s wishes.
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PTZ-BOX 3.0
As a first step the Address map of MODBUS is added to device parameters.
The progress is displayed on the Fig. 51: Right click the mouse button on the item
Calculated measurands->Insert object of configuration. Then a dialog window for
file selection is displayed. Choose the required MODBUS template (file with
extension *.db).
Fig. 51 Inserting a MODBUS map
After adding the MODBUS template file (MODBUS map) it will be displayed in
the device parameters as a new parameter MODBUS map (MM01 - Fig. 52). The list
of parameters readable or writable via the MODBUS protocol (from the category
actual values or archives) is available at the right part of the screen. In case of any
requirement for template changing it is necessary to change the original template file.
After this, the template must be the loaded again into the MODBUS module with
pressing the button Refresh from templ.
Note:
Authorization of ASC (authorized service centre) is required to carry out the
change of the MODBUS template (MODBUS map).
15.7.1
Switching to communication via MODBUS protocol
In case you need communication via MODBUS protocol it is necessary to set
this type of communication protocol on System basic communication on the
software module Communication ( Fig. 53).
After this switch and writing the parameters into the device. The communication
will be interrupted (communication protocols on device and PC are different). For
communication with device it is now necessary to change parameters settings for the
station in GASCcomm applicable for MODBUS protocol. It is also necessary to set
parameter Address 1 either on a non-zero address (which is set in the device) or on
universal address Adr1 = 248 (see 14.3.1).
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PTZ-BOX 3.0
Fig. 52 Parameter of MODBUS map address
Fig. 53 Switch of communication protocol in the device
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PTZ-BOX 3.0
15.8 Configuration of Quick Access buttons
15.8.1
Adding the quick button map into the parameter file
Determine the device parameters via the GASCcomm service program. Choose
the “Calculated measurands” item in the displayed parameters tree structure and
click the right mouse button to display a submenu. From this submenu, select the
“Insert object of configuration” item, and then “Quick buttons map”. A standard dialog
box will appear; select the file that includes the required quick buttons template
(usually the QuickButton directory in the service program directory is designated for
these templates files).
Fig. 54 Adding the QB map
When you click on the „Open“ button, the MQB01 Quick butt.map object will be
added to the device parameter file. In the displayed details of this object (in the right
part of the window), there are four tabs displaying contents definition of each of the
four screens.
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PTZ-BOX 3.0
Fig. 55 Showing the QB map
The QA buttons are operational after saving the parameters into the device by
clicking the “Save into device” button.
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PTZ-BOX 3.0
15.8.2
Creating a Quick Access Button map
Fig. 56 Creating a QB map
Fig. 57 Adding a line in the QB map
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PTZ-BOX 3.0
Fig. 58 Choose the type of measurant for the QB map
Fig. 59 Choose the parameter for the QB map
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PTZ-BOX 3.0
16 Exchange of pressure and temperature sensors
This chapter does not apply for the additional digital sensors that might be
available. For these sensors see chapter 17.
Replacement of both sensors is relatively simple. The exchange consists of
mechanical mounting of the sensor into the device followed by loading the file with
calibration data by using the GASCcomm service software. In case of a temperature
sensor the calibration data are delivered separately (on CD). The pressure sensor
has the calibration data stored in its memory so it is not necessary to load the
calibration file from a CD.
Warning:
In case of the replacement of a sensor that measures basic values, it affects
the metrological part of the device. Before this operation it is necessary to
breach the metrological seal and move metrological switch to the ON position.
Breaching of the metrological seal means, that the verification is not valid
anylonger!
This operation can be proceeded only by an acreditted service center (ASC).
16.1 Pressure and temperature sensor replacement
procedure in the PTZ-BOX 3.0








Disconnect the device from the power supply – disconnect the external power
supply (if applied) and remove the main battery (existing device settings and
data in archives will not be lost)
Disconnect required sensor from the device
Apply new sensor into the device
Reconnect power to device – battery first and external power supply (if
applied) after that
Switch metrological switch to the ON position (necessary to breach the
metrological seal)
By using the GASCcomm service software adjust the software settings of the
device for proper communication with the new sensor (see chapter 16.2 and
16.3)
Switch metrological switch to OFF position.
Proceed new verification with new sensor
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PTZ-BOX 3.0
16.2 Software settings for a new temperature sensor
At this moment we have replaced a temperature sensor with the new one, the
battery is inserted back into the device and now it is necessary to finish the
installation by using the GASCcomm service software.
Readout the parameters from the device (menu Readout-> parameters). In
the next step click in the parameters menu on „Hardware“ item (see Fig. 60).
In the right part of the opened window click on the item „Change temperature
transmitter“. In the next window enter the path to the data file *.txt with stored
calibration data, which was delivered together with temperature sensor (see Fig. 61).
Select the required calibration file and confirm by clicking on the „Open“ button. The
calibration data are stored in the parameter file now.
To finish this operation save the parameters into the device by clicking the
„Save into device“ button. After saving the parameters, readout the parameters from
the device in order to check if all changes were proceed successfully. Click on the
„Hardware“ item (see description above) and check the serial number on sensor
cable with serial number in parameters (see Fig. 62).
If serial numbers are complying, the change of the sensor is successfully
finished. In the case that the serial numbers are not corresponding, check if the steps
during changing of sensor were performed OK, step by step, or check if the correct
calibration file was used.
Note: After the replacement of the temperature sensor it is possible (if legally
required) to make a one or two point calibration of the sensor.
Fig. 60 Change the temperature sensor
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PTZ-BOX 3.0
Fig. 61 Find the calibration file of the sensor
Fig. 62 Chek serial number of the sensor
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PTZ-BOX 3.0
16.3 Software settings for a new pressure sensor
At this moment we have replaced pressure sensor with the new one, the
battery is inserted back into the device and it is necessary to finish the installation by
using the GASCcomm service software.
Readout the parameters from the device (menu Readout-> parameters). In
the next step click in the menu of parameters on the „Hardware“ item (see Fig. 60).
In the right side of the window click on „Parameters of module“ (see Fig. 62). Now
the service software will load the calibration data from the sensor’s memory into
parameters of the device. At this time software setting is almost finished. Save
parameters into the device by clicking on „Save into device“ button. After that check
compliance of serial number placed on sensor and in parameters.
Now the sensor replacement is finished.
Note: After replacement of the pressure sensor it is possible (if legally required)
to make a one or two point calibration of the pressure sensor.
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PTZ-BOX 3.0
17 Additional external digital temperature or
pressure sensor
17.1 Fitting an additional digital pressure or temperature
sensor
Additional to the standard mounted pressure and temperature sensors which
are metrological approved according to the MID approval it is possible to add an
additional pressure or temperature sensor.
The value measured by this additional pressure or temperature sensor is not a
metrological value. It means that it is not included in the metrological part of the
device. Measured values can be store in the archives and also the actual value can
be showed at the display.
As additional sensor either the digital pressure sensor PA1.1 or the digital
temperature sensor TA1.1 can be used. Digital sensors are using the internal
intrinsically safe serial bus (RS-485) and MODBUS RTU protocol. For intrinsic safety,
intrinsically safe “ia” sensors must be used.
For the connection of an additional digital sensor (PA1.1, TA1.1) the volume
converter must be equipped with an RS-485expansion module (EDT-port) (see Fig.
64). The EDT-port and additional digital sensors are not part of standard accessories
and it is necessary to order these separately.
The digital sensor is to be connected to the RS-485 clamps of the EDT-port.
Only one digital sensor can be connected to this EDT-port.
Connecting/disconnecting a sensor and also of the EDT-port can only be
performed when the power supply is disconnected.
Procedure of connecting EDT-port and digital sensor
1. Disconnect volume corrector from external power supply ( if present)
2. Open the device and remove battery
3. Unscrew plastic cover located South of the plus pole of the battery.
(factory seal will be broken)
4. Insert EDT-port in to the X4 board of inputs. After inserting of the module
it is necessary to check if all pins are inserted into the connector properly
5. Apply cover delivered with the EDT-port and fix the expansion board on
the input/output board with the screw
6. Connect digital sensor. Pull the cable of the sensor through the cable
bushing. Attach the shielding of the cable with the body of the bushing.
The electrical scheme of the connection is shown on Fig. 63.
7. Check the connection of the digital sensor
8. Connect device to the power. Insert the battery and connect the external
power supply (if available)
After installation of a digital sensor it is necessary to adjust the parameters by
using the service software.
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PTZ-BOX 3.0
Expansion module RS-485 for digital
transmitter connection
KP 065 08
D+
D-
U+
GND
INT. BUS RS-485
attach shielding with cable gland
Digital transmitter PA1.1, TA1.1
signal
Pin no./color
ver.B ver.C ver.D
DATA +
DATA -
2
4
PWR
GND
1
3
white
yellow
brown
green
3
1
2
Transmitter version:
ver.B: with M12 connector
ver.C: with integral shielded cable
ver.D: with DIN 43650 connector
Fig. 63 Connecting of a digital sensor with the EDT expansion module (EDT
port)
Fig. 64 Position of the EDT-port in the device
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PTZ-BOX 3.0
17.2 Configuring the digital sensor in the parameter file
As a first step it is necessary to readout the parameters from the PTZ-BOX
(menu Readout ->Parameters).
Now click in parameters menu on the „PTZ-BOX 3.0“ item. Using the right
mouse button will open a menu. In the opened menu select „Insert object“ and in
next selection choose the required sensor (for instance temperature sensor TA1.1,
see Fig. 65). Herewith we have added the digital sensor into the parameter file and
now it is necessary to save the modified parameters into the device by clicking on
„Save into device“ button.
Now click in parameters menu on just added digital sensor TA1.1 (see Fig.
66). Because it is a digital sensor connected to the intrinsically safe RS-485 serial
interface it must have assigned communication address. There might be two
possibilities with respect to the assigning of communication address:
a) The new digital sensor has the same address as is predefined in
parameters – standard it is address no. 1 (see chapter 17.2.1.).
b) The new digital sensor has a different address than is stored in device’s
parameters (see chapter 17.2.2).
17.2.1 The new installed digital sensor has the same address as
is predefined in parameters (standard address no.1)
In this case it is not necessary to change communication address. By clicking
on the „Parameters of module“ button. We will check if sensor is communicating
with the device. If everything is correct, a window with the sensor parameters will
appear. If the service software warns you, that „Module doesn’t respond“ this
means that the address of the sensor is different from the address pre-set in
parameters and it is required to set correct address. Setting of the right
communication address will be described in chapter 17.2.2 .
If the sensor communicates without any problem (parameters of the module
were read correctly), the installation is finished.
Note: After adding the digital sensor it is possible (if required) to make a one or
two point calibration of sensor.
17.2.2 The new installed digital sensor has a different address
than pre-set in parameters
If you find that the sensor is not communicating, it probably has a different
communication address than is pre-set in device parameters. To correct the address
click in the device parameters on the sensor item (in our case „Temperature TA1.1“
see Fig. 66). After that in in right part of the window click on „New address“ button.
The GASCcomm service software will ask you to enter the serial number of the
added sensor. Enter the serial number and click „OK“. After that the service software
will ask you to enter the new communication address. Enter the same address that is
stored in device parameters – standard it is the address no.1. New address is stored
in the sensor now.
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PTZ-BOX 3.0
By clicking on the „Parameters of module“ button we will check if the sensor
is communicating properly with the device. If everything is correct you will see a
window with the sensor parameter. Herewith we finished the change of the address
and also the installation of the sensor is finished.
Note: After adding of a digital sensor it is possible (if prescribed) to make a one
or two point calibration of sensor. Adding the value measured by a digital sensor into
archives
After adding a digital sensor into the device parameters it is also necessary to
configure the parameter files so that the measured values are added to the archives.
add parameter (temperature in our case) measured by this sensor into archives
In device parameters click on the digital sensor. In the right part of the window
tick the archives where you want the values to be stored. After that save this change
into device by clicking on „Save into device“ button.
17.3 Final verification after replacement of a sensor or
adding a digital sensor
As a final step it is recommended to check the device by the self diagnostic
function. Click on „MENU- Setup / Status (diagnostics) of device / from Device“. A
new window will be opened that describes the actual status of device. In the column
„State of last test“ there should not be any warning or error! If the device announces
a warning or error, click on the „Device test“ button. In case that the problem
continues, contact manufacturer’s technical support.
If everything is all right and still a warning or error message is displayed in
„Summary status“ column, click on „Clear summ. Status“ thereby all historical
warnings and errors that occurred before replacement or adding of a sensor will be
cleared.
107
PTZ-BOX 3.0
Fig. 65 Adding a digital temperature sensor
Fig. 66 Check the address
108
PTZ-BOX 3.0
18 What if something does not work
problem
Possible reason
Set wrong PC port.
Set different address 1 or address 2 in the device and in the PC.
Set different communication speed between PC and device.
Set different communication protocol between PC and device.
Service switch in OFF position.
Impossible to set
Wrong password (only if the password is for full access).
parameters
Full setting archive – send the device into authorized service
centre.
Check connection between device and gas meter (pulse input).
Wrong value of primary
Wrong set of gas meter constant.
volume
Wrong set of initial state of primary volume – set value of primary
volume with momentary volume on gas meter.
Illogical value of base
The device saved the values into the error counters because of
volume
wrong measured values – start device diagnostics.
Impossible to switch on
Discharged battery. Exchange battery or connect external power
the display
supply.
Device communicates but STOP MOD – discharged battery. Exchange battery or connect
it does not measure
external power supply.
Wrong number of output Wrong setting of output pulses constant or delay between pulses
pulses
according to frequency of input pulses.
Factors which affects battery consumption:
 Too frequent communication – Extend communication
Battery discharges very
interval
quickly
 Short measuring period– Extend measuring period
 Output pulses generating – cancelled output pulses
 Switched on HF input– switch off with help of service SW.
Start TEST from device keyboard.
On display is Err or Wrn
Readout does not
working
If the corrector indicates errors and warning messages (on the initial display Err
or Wrn is shown) it is necessary to start the internal device test either via keypad or
via the GASCcomm software to identify the error. This procedure is described in
chapter Fout! Bladwijzer niet gedefinieerd.
In the following table possible errors and warning messages as well as a
possible solution is described
Visual display
E0 CRC of program
E1 CRC of loader
E2 CRC of parameter
E3 memory error
Error description and solution
Error of check sum in FW
- Necessary repair in ASC
Error of checksum of loader.
- Failure of memory FLASH, Necessary repair in ASC
Error of checksum of device parameters.
- Accomplish changes of any parameters and write
change into device.
Error of device memory.
- Necessary repair in ASC.
109
Abbrev.
Err
Err
Err
Err
PTZ-BOX 3.0
Visual display
E4 error of FLASH
E5 full setup archive
E6 sensor replacement
E7 sensor communication
E8 sensor error
E9 battery voltage
E10 compressibility table
E11 compressib.
Visual display
W0 sensor warning
W1 battery capacity
W2
Error description and solution
Abbrev.
Error of device FLASH memory.
Err
- Necessary repair in ASC
Full setup archive.
Err
- Device is fully operational but no parameters are
changeable. Erase setup archive in ASC.
Accomplished replacement of sensor or modification of
Err
parameters.
- Set back device to original setup or arrange
verification in ASC.
Error in communication with sensors.
Err
- Check connection of sensors for example setup of
correct communication address.
Error of sensor.
Err
- Measured value can be out of measured range, or
sensor is defective – necessary replace sensor in
ASC.
Battery voltage decreased under allowable level.
Err
- Replace battery.
Error of calculation in compressibility table due to input
Err
parameters.
- Correct gas composition
Infeasible calculation of compressibility table due to range
Err
restriction of used standard
Error description and pertinent solution
Warning message from sensor, no influence on
metrological properties.
Capacity of battery decreased under allowable level (SW
calculation) Warning message 90 days before discharged.
- unused -
Abbrev.
Wrn
Wrn
Wrn
W3 surge current
terminal
Current overload appears on internal bus terminals.
Wrn
W4
-
Wrn
W5 external power
shortage
External power failure. During external power shortage
internal power is ensured by the main battery. But in case
of HF Namur sensors no signals from the sensor is
registered during external power failure.
Current overload in device appears.
W6 surge current of
device
unused -
Note:
ASC – authorized service centre
110
Wrn
Wrn
PTZ-BOX 3.0
19 Literature
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
PTZ-BOX 3.0 Manual (this document)
EN 60079-0:2006 – Electrical apparatus for explosive gas atmospheres – Part
0: General requirements.
EN 60079-11:2007 – Explosive atmospheres –Part 11: Equipment protection by
intrinsic safety “i”
EN 60079-26 :2007 – Explosive atmospheres – Part 26: Equipment with
equipment protection level (EPL) Ga
EN 12405-1:2006 – Gas meters – Conversion devices – Part 1: Volume
conversion
EN 60079-14:2004 – Electrical apparatus for explosive gas atmospheres – Part
14: Electrical installation in hazardous areas (other than mines).
EN 61000-4-2:1995+A1:1998+A2:2001 – Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques – Section 2: Electrostatic
discharge immunity test – Basic EMC Publication
EN 61000-4-3:2006/A1:2008 Electromagnetic compatibility (EMC) – Part 4-3:
Testing and measurement techniques – Radiated, radio-frequency
electromagnetic field immunity test.
EN 61000-4-4:2004 - Electromagnetic compatibility (EMC) – Part 4-4: Testing
and measurement techniques – Electrical fast transient/burst immunity test.
EN 61000-4-6:2007+Cor.:2008 – Electromagnetic compatibility (EMC) - Part 4:
Testing and measurements techniques – Section 6: Immunity to conducted
disturbances, inducted by radio-frequency fields.
EN 61000-6-2: 2005/Cor.:2005-09 - Electromagnetic compatibility (EMC) – Part
6-2: Generic standards – Immunity for industrial environments.
EN 61000-6-4: 2007
EN 62056-21:2002 Electricity metering - Data exchange for meter reading, tariff
and load control – Part 21: Direct local data exchange.
IEC 60364-4-41: 2005 – Low voltage electrical installations – Part 4-41:
Protection for safety - Protection against electric shock.
Modicon Modbus Protocol Reference Guide, Modicon Inc., Industrial
Automation Systems, 1996
FTZÚ 11 ATEX 0015X – EC -Type Examination Certificate
EN ISO 12213-3: 2009 - Natural gas – Calculation of compression factor – Part
3: Calculation using physical properties
Directive 2006/66/EC and Amendment 2013/56/EU of the European Parliament
and of the Council on batteries and accumulators and waste batteries and
accumulators
20 Documentation
[19] GASCCOMM – Software description. User manual (per 2012 integrated in this
manual)
[20] PA1.1 – Pressure converter with Modus protocol. User manual.
[21] TA1.1 – Temperature converter with Modus protocol. User manual.
111
PTZ-BOX 3.0
21 Software
[22] GASCCOMM.exe, software for configuration and read out supplied with device
22 Used trade marks
{1}
{2}
IrDA® - is a trade mark of Infrared Data Association
ModBus® - is a trade mark of Modicon
112
PTZ-BOX 3.0
23 List of figures
Fig. 1 Volume and energy calculations - Scheme....................................................... 7
Fig. 2 Device dimensions ........................................................................................... 8
Fig. 3 Main parts of the device.................................................................................... 9
Fig. 4 Examples of external power supply ................................................................ 11
Fig. 5 Security marks ................................................................................................ 12
Fig. 6 Storing impulses in counters........................................................................... 18
Fig. 7 Processing of volumes during reversed flow ................................................. 19
Fig. 8 Inputs and outputs terminals ........................................................................... 22
Fig. 9 Example of an impulse (binary) output and current output scheme ................ 23
Fig. 10 Safety separation of communication using module K3 Module for RS-485 .. 25
Fig. 11 Safety separation of RS-232 communication via separator MTL 5051 ......... 25
Fig. 12 Communication cable wiring ......................................................................... 26
Fig. 13 Removable foil strip in the battery holder...................................................... 37
Fig. 14 Initial display ................................................................................................. 39
Fig. 15 Mounting of the PTZ-BOX 3.0 to the mounting plate .................................... 52
Fig. 16 Mounting the PTZ-BOX 3.0 to a pipeline ...................................................... 52
Fig. 17 Temperature sensor mounting ...................................................................... 53
Fig. 18 Temperature sensor mounting by a weldolet ................................................ 54
Fig. 19 Shielded connection in the gland .................................................................. 55
Fig. 20 Station setting ............................................................................................... 66
Fig. 21 Adding a new communication channel ......................................................... 67
Fig. 22 Base device parameters ............................................................................... 68
Fig. 23 Data archive ................................................................................................ 69
Fig. 24 Base parameters – Full mode display.......................................................... 70
Fig. 25 Assistant for configuration ........................................................................... 71
Fig. 26 Configuration of identification and communication ...................................... 71
Fig. 27 Gas composition configuration .................................................................... 72
Fig. 28 Channel setting ............................................................................................ 73
Fig. 29 Actual (primary) volume counter setting ...................................................... 74
Fig. 30 Displaying of device diagnostics .................................................................. 75
Fig. 31 Clearing of the archives ............................................................................... 76
Fig. 32 Password setting ......................................................................................... 77
Fig. 33 Setting the gas meter factor in simple mode display.................................... 79
Fig. 34 Setting gas meter factor for LF pulses in full mode display .......................... 80
Fig. 35 Setting of gas meter factor for HF pulses in full mode display ..................... 81
Fig. 36 Switching on and off output pulses ............................................................... 82
Fig. 37 Configuring a pulse output ............................................................................ 83
Fig. 38 Pulse output configuration ............................................................................ 83
Fig. 39 Wizard for mathematical expressions .......................................................... 85
113
PTZ-BOX 3.0
Fig. 40 Equation for base volume pulses and output connection ............................. 85
Fig. 41 Parameter V03 after equation assigment .................................................... 86
Fig. 42 Analogue output setting ............................................................................... 87
Fig. 43 Analogue output configuration ..................................................................... 87
Fig. 44 Wizard for creating an analogue output equation ........................................ 88
Fig. 45 Equation for analogue output....................................................................... 88
Fig. 46 Analogue output with equation on output clamp DO4 .................................. 89
Fig. 47 Set point setting ........................................................................................... 90
Fig. 48 Set point configuration ................................................................................. 91
Fig. 49 Configuration the monitoring of the external power supply .......................... 92
Fig. 50 Monitoring setting of external power supply failure ...................................... 93
Fig. 51 Inserting a MODBUS map ........................................................................... 94
Fig. 52 Parameter of MODBUS map address.......................................................... 95
Fig. 53 Switch of communication protocol in the device .......................................... 95
Fig. 54 Adding the QB map ..................................................................................... 96
Fig. 55 Showing the QB map ................................................................................... 97
Fig. 56 Creating a QB map ...................................................................................... 98
Fig. 57 Adding a line in the QB map ........................................................................ 98
Fig. 58 Choose the type of measurant for the QB map ........................................... 99
Fig. 59 Choose the parameter for the QB map ........................................................ 99
Fig. 60 Change the temperature sensor ................................................................. 101
Fig. 61 Find the calibration file of the sensor .......................................................... 102
Fig. 62 Chek serial number of the sensor ............................................................... 102
Fig. 63 Connecting of a digital sensor with the EDT expansion module (EDT port) 105
Fig. 64 Position of the EDT-port in the device ........................................................ 105
Fig. 65 Adding a digital temperature sensor ........................................................... 108
Fig. 66 Check the address ...................................................................................... 108
24 List of Tables
Table 1 Limitation of standard validity range of compressibility calculation .............. 17
Table 2 Digital inputs setting options ........................................................................ 20
Table 3 Options of archiving the individual values .................................................... 29
Table 4 Service switch settings ................................................................................ 33
Table 5 User access level (for “complete” functionality of the service switch) .......... 35
Table 6 ASC access level ......................................................................................... 36
Table 7 List of events – error messages (Err indication) .......................................... 48
Table 8 List of events – warning messages (Wrn indication) .................................... 48
Table 9 Compact device status word ........................................................................ 48
Table 10 Assigning of weldolets and thermowells according to pipeline diameter.... 53
Table 11 Recommended cable types ....................................................................... 55
114
PTZ-BOX 3.0
PTZ-BOX 3.0 GAS-VOLUME CONVERSION DEVICE
Prepared by:
Issued by:
Collective of authors
vemmtec Messtechnik GmbH
Gartenstrasse 20
144 82 Potsdam-Babelsberg
Germany
Issued on:
February 2017
Doc. no.:
097-102-003
Phone: +49 (0) 3 31/70 96 274
Fax: +49 (0) 3 31/70 96 270
http://www.vemmtec.com
e-mail: [email protected]
115
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