ESTERS ELEKTRONIK GDR 1530-0000-0000 User manual

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Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
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INSTRUCTION MANUAL IM 326-00 E
Device: Flow Computer GDR 1530-0000-0000
Content: Instruction manual
Rev. No.: IM 326-00 E V0.4-2023-08-11, FW G12.02

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Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
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User information
- Read the operating instructions completely before installing or operating the device for the first time.
- Pay attention to all important notes and warnings in this document.
- Please refer to the nameplate for the serial number of the device, which you will need to order spare parts,
and the correct voltage supply. You will find it on the outside of the device.
- Installation, commissioning, operation and maintenance may only be carried out by a qualified electrician.
The guidelines applicable at the installation site must be observed.
- For reasons of personal safety, maintenance work may only be carried out when the device is de-energized.
- To ensure operational safety, only original spare parts from the manufacturer may be installed.
- If the device is not used for its intended purpose, any claims under warranty and product liability become
invalid. In particular, improper use is deemed to have occurred if the information in the operating
instructions was not observed during installation, commissioning, operation and maintenance.
- The device must be integrated into the lightning protection concept of the system operator.
Please note that the device must always be used in accordance with the operating
instructions. Any deviations will invalidate the operating safety.
Technical developments may result in deviations from this document. If you require further information or if
special problems arise which are not dealt with in detail in these operating instructions, you can obtain
information at the following address:
Imprint
Esters Elektronik GmbH
Hafenrandstr. 14
D-63741 Aschaffenburg
Tel.: [phone] - 0
Fax: [phone] - 20
eMail: [email protected]
Internet: www.esters.de, www.fluidistor.de
Copyright
This manual is copyrighted.
Duplication and distribution are not permitted without written permission.
© Esters Elektronik GmbH, Aschaffenburg

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Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
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Table of Contents
User information ____________________________________________________________________________2
Imprint ____________________________________________________________________________________2
Copyright __________________________________________________________________________________2
Table of Contents____________________________________________________________________________3
Index of Figure ______________________________________________________________________________4
Index of Tables______________________________________________________________________________4
List of abbreviations__________________________________________________________________________4
1Common ____________________________________________________________________________5
2Technical data ________________________________________________________________________5
2.1 Input _______________________________________________________________________5
2.2 Output ______________________________________________________________________6
2.3 Relays_______________________________________________________________________6
2.4 Electrical values _______________________________________________________________6
2.5 Environmental influences _______________________________________________________6
2.6 Display, housing, weight ________________________________________________________7
2.7 Housing _____________________________________________________________________7
3Device codes _________________________________________________________________________8
4Operating overview ___________________________________________________________________9
4.1 Touch keypad_________________________________________________________________9
4.2 Display: Device start ___________________________________________________________9
4.3 Display: LIVE screen___________________________________________________________10
4.4 Display: ERROR Screens (Error messages)__________________________________________11
4.5 Display: PARAMETER screen (settings menu) and navigation __________________________11
5.2 Menu structure: Language _____________________________________________________16
5.3 Menu structure: Device info (#1100) _____________________________________________17
5.4 Menu structure: Inputs (#1500) _________________________________________________18
5.5 Menu structure: Outputs (#2400)________________________________________________23
5.6 Menu structure: Limits (#2900)__________________________________________________26
5.7 Menu structure: System (#1200) ________________________________________________27
5.8 Menu structure: Wizards (#1900)________________________________________________29
5.9 Menu structure: Access rights (#1950) ____________________________________________30
5.10 Menu structure: Counter values (#1300) __________________________________________30
6Error codes list ______________________________________________________________________31
7Appendix ___________________________________________________________________________32
7.1 Overview of nameplates GD 300 (Ex) and GD 100 ___________________________________32
7.2 Factory calibration certificate for gas flow meter____________________________________33

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Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
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Index of Figure
Figure 1: Touch keypad________________________________________________________________________ 9
Figure 2: Display device start ___________________________________________________________________ 9
Figure 3: Meter reading ______________________________________________________________________ 10
Figure 4: Measurement value flow rate__________________________________________________________ 10
Figure 5: Measurement value temperature_______________________________________________________ 10
Figure 6: Measurement value pressure __________________________________________________________ 10
Figure 7: Internal barometric pressure __________________________________________________________ 10
Figure 8: mA output _________________________________________________________________________ 10
Figure 9: Limit value _________________________________________________________________________ 10
Figure 10: Relay ____________________________________________________________________________ 10
Figure 11: System status______________________________________________________________________ 10
Figure 12: Error screen _______________________________________________________________________ 11
Figure 13: Main menu (PARAMETER screen) _____________________________________________________ 11
Figure 14: Displaying the hierarchy level when opening the PARAMETER screen _________________________ 11
Figure 15: Enumeration parameter (EP) _________________________________________________________ 13
Figure 16: Numerical parameter (NP) ___________________________________________________________ 13
Figure 17: Language setting for new devices______________________________________________________ 16
Figure 18: Overview nameplates GD 300 (Ex) und GD 100 ___________________________________________ 32
Figure 19: Factory calibration certificate for gas flow meter__________________________________________ 33
Index of Tables
Table 1: Device codes _________________________________________________________________________ 8
Table 2: Error codes _________________________________________________________________________ 31
List of abbreviations
EP
Enumeration parameters
NP
Numerical parameters
FS
Factory settings

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Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
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1Common
The actual gas quantity of the gas flow meter GD 300 (Ex) / GD 500 (Ex) is calculated by the 1-channel flow
computer GDR 1530.
On an hourly or minutely basis, the current gas quantity can be displayed in cubic meters or liters. The totalizer of
the total quantity can be displayed either in cubic meters or in liters. The counter can have 9 digits up to 999 million
cubic meters. The resolution is 0.1 liters.
2 different inputs are available for the input signal.
Gas flow meter GD 300 (Ex)/ GD 500 (Ex):
1. Direct connection of the platinum wire sensor
(NON-ATEX)
2. Connection of the HB 300 Ex (ATEX area)
The current output 0(4) - 20 mA indicates the current flow in the form of operating or standard cubic meters.
Two limit values are available for limit value monitoring. Flow rate, device status or error messages can be
passed on to superior PLC system via 2 semiconductor relays.
In addition to a pt100 input, the devices also have mA inputs for pressure and temperature sensors as well as an
integrated barometric sensor for recording the atmospheric pressure.
The standardization can be performed according to the standards DIN 1343, DIN 6358, DIN ISO 2533 or
DIN 102 / ISO 1-1975.
The Modbus RTU bus systems are available as an option for data transmission.
2Technical data
2.1 Input
FLOW RATE
- Input for platinum wire sensor (GD 300/GD 500) (only NON-ATEX) or
FLOW RATE
IMPULSE INPUT
- Impulse input for HB 300 (Ex) (GD 300 (Ex)/GD 500 (Ex))
Definition of minimum threshold to distinguish between gas flow and
standstill possible (creeping quantity suppression).
The following inputs are integrated for connecting external sensors for pressure and temperatures:
TEMPERATURE
- 4 - 20 mA, 2 wire = -100 - 999 °C (17 bit) or
- Pt100, 3 wire (17 bit)
PRESSURE
4 - 20 mA, 2 wire = 0 - 1000 bar (17 bit)

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Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
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2.2 Output
2.3 Relays
2.4 Electrical values
2.5 Environmental influences
OUTPUT
0 (4) - 20 mA = 0 - (x) Bm³/h, l/h, Bm³/min, l/min,
Nm³/h, NL/h, Nm³/min, NL/min) flow rate
(freely programmable), input resistance 500 Ohm
K1:
Relay (NO) freely programmable
- pulse output (0,1, 1 oder 10 oder 100 m³ per impulse,
freely programmable), counter output quantity or
- limit value or
- device status
K2:
Relay (NO) freely programmable
- pulse output (0,1, 1 oder 10 oder 100 m³ per impulse,
freely programmable), counter output quantity or
- limit value or
- device status
ACCURACY
± 0,05 % EW ± 1 Digit with 23°C
POWER SUPPLY
- 24 V, DC ± 3 V , max. 200 mA (Standard)
- 100 - 240 V, AC, 0,33 - 0,14 A, max. 47 - 63 Hz
(optional, Retrofit kit)
AMBIENT TEMPERATURE
-10 to +55°C
STORAGE TEMPERATURE
-20 to +85°C
TEST VOLTAGE
3 kV
HUMIDITY CLASS
E-DIN 40040
ELECTROMAGNETIC COMPATIBILITY
acc. to EN 50082-2

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Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
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2.6 Display, housing, weight
2.7 Housing
LCD DISPLAY
4 rows à 20 characters
Size: 66 x 40mm, font size 4.8 mm
Display colour: black on white
DATE
Acc. to ISO8601/EN28601
COUNTER PULSES
Max. 999.999.999.999.999.999 Pulse (1*10^18 - 1 pulse),
resolution 1 pulse
(In the event of a counter overflow, the counter starts at zero.)
PULSE OUTPUT
0,001 - 1.000.000 m3/pulse, resolution 1l/pulse
Max. 10 pulses/s for Bm3or Nm3
FLOW „OPERATIONAL“
Max. 100 Bm3/s, 360.000 Bm3/h
FLOW „STANDARDIZED“
Max. 1.000 Nm3/s, 3.600.000 Nm3/h
COUNTER
OPERATING QUANTITY
STANDARDIZED QUANTITY
Max. 99.999.999.999.999,9999999 m3(<1*1015)
resolution 0,1cm3
Display: 99.999.999.999.999,9 m3or Nm3
(In the event of a counter overflow, the counter starts at zero.)
STANDARD HOUSING
WALL MOUNTING
Dimensions: 151 mm (W) x 125 mm (H) x 60 mm (D)
Material: polycarbonate UL 94 V0
Protection class: IP 65
Weight: approx. 600 g
HOUSING OPTIONS
- mounting parts for DIN rail mounting
- fixing parts for direct mounting on gas flowmeter GD 300
(only NON ATEX applications)

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Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
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3Device codes
GDR 1530-0000-0000
Inputs
1: Flow rate: input for platinum wire sensor (GD 300/GD 500) (only NON-ATEX) or
•
1: Flow rate: impulse input for HB 300-R000000 (GD 300/GD 500), HB 300 Ex-R000000
(GD 300 Ex/GD 500 Ex)
•
2: Temperature1): 4 - 20 mA, 2 wire = -100 - 999 °C (17 bit) or
•
2: Temperature (Pt100) 1): 3 wire (17 bit)
•
3: Pressure1): 4 - 20 mA, 2-Leiter = 0 - 1000 bar (17 bit)
•
Output
1: 4 - 20 mA = 0 - (x) Bm³/h, l/h, Bm³/min, l/min, Nm³/h, NL/h, Nm³/min, NL/min)
flow rate (freely programmable), input resistance 500 Ohm
•
Relay
K1 (NO) freely programmable
•
K2 (NO) freely programmable
•
Further Functions
Limit value monitoring (2 limit values)
•
Integrated barometric sensor
•
Optional Functions
Modbus RTU
•
1)virtual input for freely programmable fixed values
Table 1: Device codes

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Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
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4Operating overview
4.1 Touch keypad
The GDR 1530-0000-0000 is programmed directly on the device using the capacitive touch keyboard.
The menu is guided using the buttons:
4.2 Display: Device start
The start-up screen appears when the device is started. After approx. 10 seconds, the device automatically
switches to the first LIVE screen.
The GDR 1530-0000-0000 differentiates between two screen types, the so-called LIVE screen including error
messages (ERROR screens) and the PARAMETER screen.
In the LIVE screen, you can display the device information (power-on diagram) by briefly pressing the Enter key
(Ok).
left
right
upwards
downwards
cancel, escape
confirm, enter
Figure 1: Touch keypad
Figure 2: Display device start

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Instruction Manual IM 326-00 E
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4.3 Display: LIVE screen
Depending on the device parameterization, corresponding LIVE screens are displayed in relation to the current
measured values and settings relating to the connected sensors. Screens that are not relevant to the operating
mode of the device are hidden accordingly. The display interval can be set by the user.
A setting of 0 prevents the automatic switchover.
Figure 4: Measurement value flow rate
Figure 3: Meter reading
Figure 5: Measurement value temperature
Figure 6: Measurement value pressure
Figure 11: System status
Figure 7: Internal barometric pressure
Figure 8: mA output
Figure 10: Relay
Figure 9: Limit value

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Instruction Manual IM 326-00 E
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4.4 Display: ERROR Screens (Error messages)
In case of an error, an ERROR screen is appended to the LIVE SCREEN for each active error.
If the automatic switching of the LIVE SCREENS is deactivated, the appropriate error screen is automatically
displayed when an error occurs. If the error is gone, the system switches back to the last LIVE SCREEN.
4.5 Display: PARAMETER screen (settings menu) and navigation
The device is parameterized on the PARAMETER screen. Starting from the LIVE screen, you can reach the
PARAMETER screen by holding down the ENTER key (3 seconds).
The settings menu or PARAMETER screen opens on a newly delivered device with the write rights of "Access
rights Level 2". When opening the menu, the display of the access rights level appears for approx. 3 seconds
before switching to the menu.
Within the " Access rights Level 2", the user can make all the necessary system settings for commissioning. A PIN
code (PIN1) can be defined to protect the parameters. The PIN assigned ex works is: 10000. The factory-defined
PIN code results in the device being "open" and thus access to the parameter setting is not protected. The
parameter settings are only protected against unauthorized access after an individual PIN code has been
Navigation in LIVE screen
Switch between the LIVE screens
Within a LIVE screen (e.g. limit value) it is possible to scroll within the screen.
Back to LIVE screen
LONG HOLD/ PRESS (approx. 3 seconds)
Opening the PARAMETER screen or settings menu
Figure 12: Error screen
Figure 13: Main menu
(PARAMETER screen)
Figure 14: Displaying the hierarchy level when
opening the PARAMETER screen
(approx. 3 sec.)

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assigned. When the device is restarted or when the user logs off, the device is downgraded to the "Access rights
Level 1”. If the keys on the device are unused within 300 seconds, an automatic logout and thus downgrading to
access level (1) takes place.
In the "Access rights 1 Level", no changes can be made to the settings. The information is only available in read
mode. To change the access rights, logging on to the system is required (see Section ).
All other access levels are only accessible by customer service. In the event of such a support case, the customer
service representative will instruct you accordingly.
4.5.1 Explanations of the menu (PARAMETER screen)
The main menu is shown as a tree structure. Tree nodes can be setting values (PARAMETERS), commands
(COMMANDS) or submenu items. Every parameter and every menu tree node have a unique ID code. A
parameter can be "open" (adjustable) or closed (locked). This is indicated by a symbol (open or closed diamond).
Legend
Unique parameter ID or menu node ID
Open/ adjustable parameter
Parameter can be changed.
For better readability, a separator "-" is inserted between
the name and value of the parameter in longer texts of
open parameters.
Closed/ locked parameter
Cannot be changed at the current access level.
For better readability, a "space" separator is inserted
between the name and value of the parameter in longer
texts of locked parameters
Command
Sub menu

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4.5.2 Navigation in the menu tree (PARAMETER screen)
4.5.3 Setting parameters
Navigate according to the previous explanations to the desired parameter, which you want to adjust and confirm
with Enter. The editing mode appears.
A distinction is made between enumeration parameters (EP) and numerical parameters (NP).
For the enumeration parameters, the value can be set using the predefined selection. In the case of numerical
parameters, the setting is made by defining the individual digits. Here, the glancing cursor marks the position of
the item to be changed.
1If a parameter cannot be edited due to locking, a parameter info display opens instead.
Navigation in the menu tree (PARAMETER screen)
Switch a menu item down or up
LEFT: Temporarily hide parameter values
Press and hold RIGHT: Load default value for the displayed parameter (if not
locked)
- Opens a submenu item
- Executes a command or
- Edits a parameter 1
- Goes back one menu level
- LONG HOLD/ PRESS
Exits menu and returns to LIVE screen
Figure 15: Enumeration parameter (EP)
Figure 16: Numerical parameter (NP)

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After leaving the editing mode by pressing the OK key (Save), you will be returned to the previous position in the
menu tree.
If it was a "chained" parameter, the next following parameter of the chain is opened for editing instead. The
chain is interrupted if a parameter is not saved because the menu item was exited with ESC.
Navigation in editing mode
- Enumeration parameters (EP): adjust option
- Numerical parameters (NP): adjust digits
(The cursor marks the digit to be adjusted, flashes alternately with the
digit located there).
- Enumeration parameters (EP): adjust option
- Numerical parameters (NP): move cursor
Save value and exit editing mode
Do not save value and exit editing mode

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5Menu structure and parameter IDs (PARAMETER screen)
5.1 Menu structure: Main menu
ID
MENU STRUCTURE:MAIN MENU
#1001
LANGUAGE
The device software has different languages, which can be set according to customer
requirements.
- - German as factory setting (FS)
#1100
DEVICE INFO
Display of relevant device information, e.g. device family, firmware, serial number, ...
#1500
INPUTS
Settings related to the connected units, such as flow meter, temperature and pressure sensor.
#2400
OUTPUTS
Setting the relay outputs and the current output.
#2900
LIMITS
Defining the limit values A and B
#1200
SYSTEM
Definition of system settings, such as operating mode, display, LED status, error display, ...
#1900
WIZARDS
Selection of wizards, such as quick start via menu ID, restart of the device, reset to factory
settings, ...
#1950
ACCESS RIGHTS
Functions such as logging in and out of the device in relation to the access levels as well as
setting a separate device pin for the access levels 2.
#1300
COUNTER VALUE
Display of the quantity and pulse counters

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5.2 Menu structure: Language
5.2.1 Setting the language: New device
For new devices and devices that have been reset to factory settings, the firmware starts in German. The
LANGUAGE setting parameter is opened automatically. The change is made according to the explanations for
enumeration parameters from section 4.5.3 Setting parameters.
5.2.2 Setting the language: Configured device.
The language can only be changed in the "Access rights 2 Level". If no PIN code (factory setting (FS): 10000) has
been assigned and no previous logout has taken place, it is not necessary to log in to the device again. The device
is therefore open and does not need to be unlocked. The change is made according to the explanations for
enumeration parameters from section 4.5.3 Setting parameters.
Figure 17: Language setting for new devices

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5.3 Menu structure: Device info (#1100)2
All parameters within the device info are locked parameters and cannot be changed by the customer.
Only the parameter Measuring point for changing the designation can be changed.
#1100
MENU STRUCTURE:DEVICE INFO
PARA.-TYP
#1101
Device family
Displaying the device family, e.g. GDR-1530
-
#1102
Firmware
Displaying the firmware version, e.g. G12.02
-
#1008
#1011
PcbID
Display of the installed hardware
-
#1965
Modell
Specification of the device type
-
#1103
Serial number
Displaying the serial number of the device
-
#1107
Production year
Display the year of manufacture of the device
-
#1108
Production month
Display the month of manufacture of the device
-
#1104
Operating hours
Displaying the total operating hours of the device
-
#1290
Probe index3
Setting the designation of the measuring point
−Probe index 1 (FS)
−Probe index 2
−Probe index 3
−Probe index 4
EP
#1968
Upgrade-Key
Function not available
NP
2The menu item is not available in previous versions.
3The setting for "Measuring point" can be found in previous versions under the "System" menu item.

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5.4 Menu structure: Inputs (#1500)
5.4.1 Input: Flow rate
#1500
MENU STRUCTURE:INPUT FLOW
PARA.-TYP
#1206
Typ-CH-A
Flow rate signal: channel A
Type selection:
−Off
−GD-Sensor direct (FS) (further settings required)
−HB3004/SC300/UNI100 (further settings required)
−Test frequency (further settings required)
NOTE:
GD-Sensor direct:
In the NON-ATEX area, the gas flow meter GD 300/ GD 500 and the
predecessor model GD 100 can be connected directly. If an SC 300 is
installed in the current installation situation, it no longer needs to be
connected.
HB300/SC300/UNI100
−HB 300 Ex-R000000 / UNI-100: In the ATEX area, the gas flow meter GD
300 Ex/ GD 500 Ex is connected via the integrated volume corrector HB
300 Ex-R000000. Older installations with UNI-100 of the predecessor
model GD 100 can be connected.
−HB 300 -R000000 / SC 300 / SC 310: In the NON-ATEX area the gas flow
meter GD 300/ GD 500 can be connected via the integrated volume
corrector HB 300-R000000 or via the external signal conditioners
SC 3005and SC 310.
EP
#2500
- Test frequency (Display only when selected: Test frequency)
Type selection:
−0,1 Hz
−0,2 Hz
−0,5 Hz
−1 Hz
−2 Hz
−5 Hz (FS)
−….
−1 kHz
EP
4Only the HB300 integrated volume correctors with type code HB 300-R0000 / HB 300 Ex-R0000 can be
connected.
5Signal conditioners SC 300 and SC 310 can be connected, but it is possible to connect the gas flow meter GD 100
/ GD 300 / GD 500 also directly via the platinum wire.

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Hafenrandstr. 14 · D-63741 Aschaffenburg
eMail: [email protected]
Internet: http://www.esters.de
#1500
MENU STRUCTURE: INPUT FLOW
PARA.-TYP
#2110
Sensor curve CH-A (Display only when selected: GD-300 Sensor direct,
HB300/SC300/UNI100)
#2101 Valid Points
- 02 (FS)
NOTE:
The definition of the number of interpolation points can take place as
follows:
- Transfer of the resolution/ native pulses (liters/pulse), specification from
the nameplate of the gas flow meter.
- (Examples see section Error! Reference source not found. Error!
Reference source not found.)
This applies to connections with HB 300 (Ex)-R000000 or direct connection
of the gas flow meter GD 300/ GD 500 and if no calibration protocol is
available.
Number of points: 2
- Take over of values from factory calibration protocol
Number of points: n+1
n+1 = number of measuring points of the calibration protocol plus 1
(For details see section 7.2 Factory calibration certificate for gas flow meter
#2111 Justierung
- 00 (FS)
NP
NP

P
=
Speed Pressure Flow Rate Temperature
Rev.-Nr.: IM 326-00 E V0.4-2023-08-11, FW G12.02
Instruction Manual IM 326-00 E
Page 20
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Fax: [phone] - 20
Esters Elektronik GmbH
Hafenrandstr. 14 · D-63741 Aschaffenburg
eMail: [email protected]
Internet: http://www.esters.de
#1500
MENU STRUCTURE:INPUT DURCHFLUSS
PARA.-TYP
Continuation: Sensor curve CH-A (Display only when selected: GD-300
Sensor direct, HB300/SC300/UNI100)
#220x Charline
Number depending on the number of specified measuring points in #2101,
where the first measuring point is always 0
# 2201 Frequency 1 (NP): 0 Hz (FS)
# 2202 Volume1 (NP): 0 l (FS)
# 2203 Frequency 2 (NP): x.x Hz (FS)
# 2204 Volume 2 (NP): x.x l (FS)
…
# 220x Frequency n (NP): x.x Hz
# 220y Volume n (NP): x.x l
NOTE:
−Adoption of the resolution (liter/pulse) data from the nameplate of the
gas flow meter.
Example acc. to Error! Reference source not found. Error! Reference
source not found.
# 2201 Frequency 1 (NP): 0.0 Hz
# 2202 Volume 1 (NP): 0
# 2203 Frequency 2 (NP): 1 Hz
# 2204 Volume 2 (NP): 0,5002 l (Example)
−Transfer of values from factory calibration record
Number of points: n+1,
corresponding to number of measuring points in the protocol plus 1
Example acc. to 7.2 Factory calibration certificate for gas flow meter
# 2201 Frequency 1 (NP): 0.0 Hz
# 2202 Volume 1 (NP): 0
# 2203 Frequency 2 (NP): 3.16 Hz
# 2204 Volume 2 (NP): 2.1982 l
# 2205 Frequency 3 (NP): 17.27 Hz
# 2206 Volume 3 (NP): 2.1974 l
….
# 2212 Frequency 7 (NP): 82.69 Hz
# 2213 Volume 7 (NP): 2.18994 l
A maximum of 32 measuring points can be defined.
NP