Paul Wegener PWBlogg User manual

Operating manual
Data acquisition system
PWBlogg
Type: N6/60

Paul Wegener GmbH
Paul Wegener GmbH
Marienstraße 24
D-06493 Ballenstedt
5. Edition 2022, Editing Date 06/22
© Paul Wegener GmbH, Ballenstedt
All rights reserved. No section of the operating manual may be replicated or processed, duplicated or
distributed using electronic systems in any way (print, photocopy, microlm or other methods) without prior
written permission of the Paul Wegener GmbH.
Design and specications are subject to change without notice.
2

General safety precautions
• This device must only be installed and operated in accordance with instructions and warnings of the tech-
nical documentation.
• Only qualied personnel is allowed to install and operate this device.
• The data logger‘s power supply is done by a lithium ion rechargeable battery.
• When installing and operating these devices, please note the following safety instructions:
• Only charging units delivered by manufacturer must be used. Failure to do so will result in serious damage
to the device and in accidents.
• Pay attention to the integrity of all connection lines. In the event of cable damage, the device must be
deactivated at once. Please contact manufacturer for repair.
• Do not short-circuit the rechargeable battery, do not open it, do not throw it into re, do not extinguish it
with water! EXPLOSION HAZARD!
• If uid from battery pack gets on your skin or into your eyes, rinse with plenty of water and see a doctor.
• Do not use damaged rechargeable batteries!
Attention: The device consists of electrostatically sensitive components. Pay attention to the
ESD operation instructions when handling with this electronics!
3
Special conditions for use in potentially explosive gas atmospheres of the
zone 2
• Mounting and connecting the device must only be done if there is no potentially explosive atmosphere.
• Connecting and disconnecting the plug connectors is only permitted if there is no explosive atmosphere.
Unused sockets must be closed with dedicated protective caps.
• Unplugged connectors are not permitted in hazardous areas. Always remove unplugged connectors from
hazardous areas!
• Opening the case must only be done if there is no potentially explosive atmosphere.
• The case must only be cleaned by using wet cloths, otherwise there is the danger of spark ignition by
electrostatic discharge.
• The „online outlet“ for data transmission and data logger conguration must only be used in case of none-
xistence of an explosive atmosphere. If not used, the „online outlet“ must be closed with the dedicated cap.
• Charging the accumulator must only be done outside potentially explosive areas.
• Check whether there is a necessity of embedding into the potential equalization of the equipment or the
metering point! This potential equalization can happen via process (pressure) connection of the data log-
ger or via the dedicated ground connection.
Note: The data logger‘s battery circuit is grounded at the case.
All subsequent modications to the device result in the consequence that a secure use is no more
guaranteed within ex-zone 2 and the EU-declaration of conformity loses its validity.
Operating manual of data acquisition system PWBlogg

Contents
1 Start-up instruction 5
2 Data logger PWBlogg N6/60 5
2.1 Data logger parameters 6
2.2 Error sources 7
2.3 Data communicationv 8
3 Charging the built-in accumulator 9
4 Technical specications 10
4.1 Data memory 10
4.2 Estimation of accumulator service life 11
5 Recycling batteries and old appliances 11
6 Troubleshooting 13
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5
1 Start-up instruction
Please note the following references during the rst initiation of the data logger:
• Install the software PWB-Soft including driver for the USB cable on your PC/laptop.
• Thereafter, connect the data logger to the PC/laptop using the provided PC data cable. For that, take an
unused interface of your PC.
• Start the software.
• Set up the serial interface in the dialog box „Settings“ of menu item „File“. You will recognize the interface
by the indication (USB).
• Establish connection between PC and data logger via „Connection“.
• Make all necessary settings in dialog eld „Conguration“. In particular, note that a 1 minute sample rate
is adjusted and start measurement is dated ahead by one year when delivering the device in order to take
care of the accumulator.
• After conrming by „OK“, the data logger will be congured again and the memory will be cleared. Mea-
surement can start now.
• Note that measurement starts only when exceeding the preset time of measurement start.
2 Data logger PWBlogg N6/60
The data logger has been particularly developed for logging pressure and temperature readings. Because
of its solid stainless steel case, the data logger is particularly suitable for net analysis in the eld of gas and
water. The measurement range begins at 50 mbar.
Data logger
The data logger has an integrated analog digital converter with high resolution which is responsible for log-
ging and digitizing pressure and temperature readings. A microprocessor stores the readings in the integra-
ted memory. At its highest expansion stage, it can log 3,8 million readings. Data logger parameterizing as well
as reading and evaluating performance data is done on any PC, laptop or netbook with Windows operating
system by using PWB-Soft 2.1. Just a USB interface for connecting the reading cable is necessary.
Pressure measurement
Pressure can be recorded both relatively and absolutely. Relative pressure mesurement is done zero-re-
ferenced against ambient air pressure on site. A waterproofed pressure equalization element provides pres-
sure equalization inside the housing. To protect the pressure equalization element optimally from permanent
moisture penetration by submergence of the metering point, this element is connected to the data logger by
a tube. The pressure equalization element can be optimally positioned by a exible fastener.
When taking absolute measurement, no pressure equalization is necessary as pressure is measured against
vacuum or a xed pressure. To calculate relative pressure, the absolute reading can be o󰀨set against the air
pressure metered on-site and, hence, the relative pressure can be determined. But this methode is predomi-
nantly qualied for pressure reading in the bar range!
Operating manual of data acquisition system PWBlogg

Paul Wegener GmbH
2.1 Data logger parameters
6
Following, relevant settings for recording and saving performance data can be adapted to measurement re-
quirements by means of the conguration dialog of the PWB-Soft on PC/laptop/netbook/pocket PC:
• Identication (eg company address)
• Short text (location, project number)
• Start measurement (date/time)
• Intervall 1 and interval 2
• Threshold defaults for analog channels
• Way to store performance data (ring memory / linear memory)
Start measurement
The start measurement determines date and time of measurement commencement. Hence, this eld under-
takes two important tasks. On the one hand, a synchronous measurement start for land measuring can be set
(all loggers commence measurement at the same time). On the other hand, this eld is used for permanent
deactivating measurement. As long as start measurement is not reached, the logger is in energy saver mode.
When the logger is not used, that way it can be simply deactivated.
Identication/Short text
The elds Identication and Short text can be used for saving any descriptive information eg location or
project. The Short text can additionally be useful as default for saving performance data on PC, laptop or
netbook.
Interval 1 und interval 2
Two increments (sample rate) for logging and saving performance date can be set. Interval 1 is adjustable
from 1s up to 1h and is used for logging performance data during normal operation. Interval 2 can be set from
1s (optional 10ms) up to 1min. It will be activated once a threshold violation is recognized.
Threshold monitoring
The data logger provides specifying thresholds and records threshold violations by means of a second sam-
ple rate. Additional to the threshold, a hysteresis can be specied
Furthermore, the data logger has an implemented sni󰀨-mode. This mode is enabled in case alarm limits
have been adjusted. Whenever the device is not used, the sni󰀨-mode saves energy and starts measurement
automatically.
Data logging starts in this mode only if the adjusted alarm limits are not exceeded or fallen below. If e.g. for
the device‘s pressure channel a lower threshold of 20 mbar is adjusted, data logging will not start until the
pressure value is above 20 mbar.
Note: The sni󰀨-mode only takes e󰀨ect at measurement start! When removing the device at the end of mea-
surement, logging does not stop automatically! The sni󰀨-mode will only be activated again after reading and
restarting the device.
Important parameters to monitor thresholds are described as follows:
Storage mode
The storage mode species whether performance data are supposed to be always recorded or in case of an
alarm only. That way it provides event-driven data recording.
Sample mode
The sample mode can be set to „limit value monitoring“ or „standard“. At „standard“ mode, interval 1 values
are measured and recorded (depending on memory saving mode). In case of a threshold violation a redi-
rection to interval 2 is done where measuring is carried out as long as the threshold violation is cancelled (in
consideration of adjusted hysteresis values).

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The setting „permanent limit value monitoring“ means permanent sampling in interval 2. This leads to an im-
mediate identication of threshold violations. Thereafter, the memory interval 1 will be redirected to interval 2.
Please note that frequent sampling of transducers increases power consumption of data logger and decrea-
ses economic life-time of the battery!
Shorted alarm storage
In case of a threshold violation normally data recording will be continued with interval period 2. The period of
data recording can be much shorter than expected. To avoid it, the option „shorted alarm storage“ can lower
that period of time where interval 2 for storage is used. The storage is limited to a maximum of 2 x interval
1 (eg 2 x 5 min). Subsequently, it is continued to measure in interval 2 but recorded just with the cycle of
interval 1.
Password protection
The conguration can be protected via password against unauthorized access. Without knowledge of pass-
word, it is not possible to clear stored data or to change conguration of the data acquisition system.
2.2 Error sources
The analog signals of transducers are converted into a digital value with resolution of 8 bit, 12 bit, 14 bit or
16 bit. The following table demonstrates the di󰀨erence between resolutions by means of a 16 bar transducer.
The values, represented in PWB-Soft program or on LCD must be rounded to the defaulted number of deci-
mal places so that the increment between two neighbouring values is not always identical.
Table: AD conversion, resolution
Potential error sources are non-linearities of AD converter which are irrelevant on resolution of 8 bit or 12
bit. However, another important one is the digital step at small resolutions. At the limit of two sequent digital
values, the tolerance between the measured (in digital steps presentable) and the real value (other sources
of error excluded) already amounts ½ resolution step. As in the table 8 bit is equivalent to 31,25 mbar. Additio-
nally, there are device-dependent sources of error such as temperature drop or deterioration of components.
At resolutions as 14 bit and 16 bit, they have much importance.
Operating manual of data acquisition system PWBlogg
ADU digital steps reading resolution
8 bit 256 62,5 mbar
12 bit 4096 4 mbar
14 bit 16384 1 mbar
16 bit 65535 0,25 mbar

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2.3 Data communication
The specially developed software PWB-Soft provides data communucation with the data logger N6/60.
Any necessary parameters on measurement are set here. Fot that purpose this software provides di󰀨erent
dialog windows.
Performance data evaluation can be done in tabular form or as chart.

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Individual periods can be enlarged by the integrated zoom function.
3 Charging the built-in accumulator
• For charging the accumulator, use the provided original charger exclusively
• Make sure that the charger‘s specied input voltage corrensponds to your local supply voltage.
• The used power socket must be accessible throughout entire charging process.
• While charging, temperature must be between +10°C and +45°C.
• The status LED‘s of the charger indicate charge state during process (red = charging, green = charging
nished)
• Charging an empty accumulator takes about 3 hours.
• You can inform yourself on accumulator‘s residual capacity by means of the PC software PWB-Soft.
• To preserve the accumulator, you should deactivate measurement when not needed for some time by
setting measurement start ahead. The ideal storage residual capacity is about 20%, never store with an
empty accumulator.
Note: Depth discharge damages the accumulator permanently.
When falling below minimum voltage, data logging will be stopped. The data logger will be operated in power-
saving mode. If the accumulator‘s residual capacity falls below 20%, then, at the latest, it should be rechar-
ged. We recommend 100% charging prior to any operation.
The accumulator must not be replaced by user. If for your N6/60 a new accumulator is needed, forward the
device to the manufacturer for replacement.
Operating manual of data acquisition system PWBlogg

Paul Wegener GmbH
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4 Technical specications
Case stainless steel, approx. Ø 60 x 177 mm
Degree of protection IP67
Transducers pressure transducer DS1/40 0...50 bar up to 0...70 bar
optional: temperature transducer (internal/external) -20...60°C
Data memory 256kB, up to 3,8 MB
Threshold adjustable upper and lower limit value and hysteresis
Sample rate freely adjustable 1s up to 1h
AD converter 8 bit (256 digital levels, ±½ LSB)
12 bit (4096 digital levels, ±1LSB)
14 bit (16384 digital levels, ±1LSB)
16 bit (65536 digital levels, ±1LSB)
Real time clock deviation 5 ± 23 ppm (∆f/f0) at 25°C
Storage mode ring memory mode(overwrites oldest data at full memory or linear memory
mode (stops at full memory)
Interface serial interface, 9600 Bd, max. 115200 Bd
when reading data
Power supply 7,2V lithium ion accumulator (3100 mAh)
7,2V lithium battery (2100mAh), optional
Operating/storage
Temperature -20..60°C
• Explosion protection II 3G Ex ec [ic Gc] IIC T4 Gc X (optional)
• Environment -20°C ≤Ta ≤ 60°C
Electrical parameters for intrinsically safe status and counting inputs (maximum values per circuit):
Voltage U0: 9,2 V
Current I0: 9,3 mA
Power P0: 21,4 mW
Capacitance Ci: 1 nF
Inductance Li: insignicant
Maximum allowed external capacitance and inductance at ignition protection Ex ic IIC:
Capacitance C0: 36 µF
Inductance L0: 925 mH
Please note the regulations for the wiring of intrinsically safe circuits!
4.1 Data memory
Storage times of the internal memory result from the number of channels occupied, from preset sample inter-
vals 1 and 2 as well as from storage and sample mode. If the reading resolution is > 8 bit (12, 14 or 16 bit),
possible storage times will halve themselves.

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4.2 Estimation of accumulator service life
Following table contains accumulator durations depending on preset sample rate and based on following
assumptions:
• constant ambient temperature of 20°C
• constant power consumption of built-in components
• no capacity loss by aging of the accumulator/self-discharge
• no fault current due to defective components
As the above-mentioned exceptions are unrealistic, to be on the safe side, we assume 60% of the real ac-
cumulator capacity is provided only. For calculation, the underlying standby current of the system will be
increased by factor 2. Though deviations (positive, negative) can not be excluded from mentioned duration!
5 Recycling batteries and old appliances
Used electric appliances, batteries and rechargeable batteries are subject to particular statutory provisions.
Batteries, rechargeable batteries and electric appliances must not be disposed with the household waste.
The end user is obligated to return them by the law. Used electric appliances, batteries and rechargeable
batteries can be disposed at collecting points, municipal disposal areas or by manufacturer / supplier.
The Paul Wegener GmbH as seller of batteries and electric appliances fullls its take-back obligation and
disposes used batteries and old electric appliances free of charge.
This take-back obligation, however, limits itself to used electric appliances, batteries and rechargeable batte-
ries which belong or belonged to the product range of the Paul Wegener GmbH and the amount which was
delivered by the Paul Wegener GmbH.
The end user bears the forwarding charges.
Operating manual of data acquisition system PWBlogg
Sample rate in s Battery service life in
days
1 131
2 202
5 297
10 352
15 and more approx. 1 year

Paul Wegener GmbH
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EU EU
EU-DECLARATION OF CONFORMITY
Product name:
PWBlogg N6/60
The specied product is in compliance with following European directives.
2014/30/EU electromagnetic compatibility
2014/34/EU equipment and protective systems intended for use in potentially explosive atmospheres
and has been developed and tested using the following standards:
EN 61000-6-3:2011-09 subject basic standard for emitted interference – emitted interference for living
quarters, business- and trade areas as well as small rms
EN 61000-6-2:2011-06 subject standard for interference resistance – industrial sector
EN 60079-0:2019-09 electrical equipment for potentially explosive atmospheres, section 0:
general requirements
EN 60079-7:2016-08 potentially explosive atmospheres - section 7: equipment protection by increased
safety „e“
EN 60079-11:2012-06 explosive atmosphere - section 11: equipment protection by intrinsic safety „i“
Marking as category 3 - equipment for use in gas explosion-hazard areas of the zone 2:
II3G Ex ec [ic Gc] IIC T4 Gc X
Manufacturer: Paul Wegener GmbH
Marienstraße 24
D-06493 Ballenstedt
Tel.: [phone]
Fax.: [phone]
Internet: www.paul-wegener.de
e-mail: [e-mail]
The special conditions for use in gas explosion-hazard areas must be observed!
Ballenstedt, 09.05.2022
Wegener
Managing Director
-20 °C ≤ Ta ≤ +60 °C

13
6 Troubleshooting
Operating manual of data acquisition system PWBlogg
Problem Measure
Software reports:
„No modules found!“
Check the following:
• whether the correct interface has been chosen
• whether the cable to data logger and PC is connected properly
• A defective accumulator can not be charged, not even by mains adapter. The data
logger can not be connected without power supply! In this case, have the accumula-
ter replaced by manufacturer.
No data stored in controller Check, whether:
• a preset start time has been reached
• all transducers and cables are functional
Have checked by manufacturer, whether:
• accumulator is functional
• moisture has been intruded into the data logger
Accumulator is low Have it replaced by manufacturer
Password forgotten Read out performance data, send reading le to manufacturer
Software does not read
performance data comple-
tely or reports errors when
reading out the data
Check, whether:
• the PC data cable is properly connected
Have checked by manufacturer, whether:
• moisture is intruded in the data logger
• accumulator of the data logger is functional
Connect it directly again (menu item „module/connect“) and start reading performance
data again.
Modern computers have power management functions. During shutdown of hard disk
or change into standby mode the CPU can be busy temporarily, so that it „oversleeps“
the sent characters. This leads to abort of reading out. If necessary, extend periods for
activating standby functions or switch o󰀨 the power management.

Paul Wegener GmbH
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Operating manual of data acquisition system PWBlogg

Paul Wegener GmbH
16
Paul Wegener GmbH
Marienstraße 24
D-06493 Ballenstedt
Tel.:
Fax:
Internet:
e-mail:
[phone]
[phone]
www.paul-wegener.de
[e-mail]
PWB FORM 2084-EN22
Most recent emendment: 16.06.2022