Shaw SDHmini-L Manuale utente
Model SDHmini-L
Dewpoint Meter
Instrucon Manual
3005 SDHmini-L User Manual - Iss 1.2
Contents
1
2
3
4
5
Introducon ................................................................................ 5
1.1 Unpacking Your SHAW Moisture Meters SDHmini-L .............. 5
1.2 General Descripon .............................................................. 5
Important Informaon ................................................................ 7
2.1 Bluetooth Cercaons ....................................................... 7
2.2 Symbols Table ....................................................................... 7
2.3 Lithium-ion Cell - Baery ...................................................... 7
2.4 Pressure Exposure ................................................................ 8
2.5 USB Communicaon Performance ....................................... 8
Installaon .................................................................................. 9
3.1 Gases to Avoid ...................................................................... 9
3.2 Installing the Air/Gas Sampling System ................................ 9
3.3 Piping Installaon Schemac ............................................. 10
3.4 Piping Schemac Component Index ................................... 11
3.5 Purging the Sample Connecon ......................................... 11
3.6 Using the SDHmini-L to Take a Moisture Reading .............. 12
3.7 Desiccant Dry-Down Technology ........................................ 13
3.8 Sample Connecons ........................................................... 14
3.9 Pressure and Flow Control ................................................. 14
3.10 Parculate Contaminaon ............................................... 15
3.11 Liquid Contaminaon ....................................................... 15
Normal Operaons ................................................................... 16
4.1 Powering On/O ................................................................ 16
4.2 Graphical Viewing Opons ................................................. 16
4.3 Display Opons .................................................................. 16
4.4 Choice of Units ................................................................... 17
Calibraon ................................................................................ 18
5.1 Auto Calibraon (AutoCal) ................................................. 18
5.2 Calibraon Setpoint (CalSet) .............................................. 19
5.3 Calibraon Procedure Error Messages ............................... 20
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4
6
7
8
9
10
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12
Sensor Related Sengs ............................................................. 21
6.1 Sensor Type ...................................................................... 21
6.2 Selecng Gas Types .......................................................... 21
6.3 Selecng Gas Molecular Weights ..................................... 21
6.4 Pressure ............................................................................ 21
Non Measurement Related Conguraon Funcons ................. 22
7.1 Changing the Date ............................................................ 22
7.2 Changing the Time ........................................................... 23
7.3 Changing Internaonal Sengs ....................................... 23
7.4 Hotkeys ............................................................................. 24
Bluetooth Printer Conguraon ................................................ 24
Data Logging ............................................................................. 26
9.1 Quicklog ............................................................................. 26
9.2 Snapshot ............................................................................ 27
9.3 Advanced Data Logging ..................................................... 27
9.4 Logged Data Review .......................................................... 29
9.5 Data Logging Storage ......................................................... 31
Addional Informaon ............................................................. 31
10.1 Temperature ................................................................... 31
10.2 Response Time ............................................................... 31
10.3 Guarantee ....................................................................... 32
10.4 Basic Denions ............................................................. 32
10.5 Problem Guide ................................................................ 33
SDHmini-L Specicaons ........................................................... 34
SDHmini-L General Assembly Diagram ...................................... 35
1 Introducon
1.1 Unpacking Your SHAW Moisture Meters SDHmini-L
Please examine the SDHmini-L package for any damage or mishandling. If any
damage is evident please nofy the carrier and the SHAW Moisture Meters
representave from where this unit was purchased.
You should have received (if ordered):
1 model SDHmini-L instrument
1 carry case
1 Allen key
1 two metre length of PTFE tubing
1 USB charging cable
1 Fir Tree ng plus 1 x ngs as
ordered
If anything is missing please contact your distributor immediately.
1.2 General Descripon
The SDHmini-L is a micro-controller based baery operated dewpoint
hygrometer with state of the art features and enhancements with support of
USB and Bluetooth interfaces for communicang with PC and also support for
thermal printer over Bluetooth.
It is a fully self-contained unit incorporang the moisture sensor, signal
condioning circuitry, memory management, graphics display, membrane
keyboard, real me clock, on-board baery and charger circuit.
The graphical user interface features three main viewing screens, digital,
graphical (historical readings in a scrolling strip chart) and a meter (a tradional
moving coil). There is also a secondary display in the top right which allows
display of readings in alternave units of measurement.
The unit operates with the following 10 language opons: English, German,
French, Spanish, Portuguese, Russian, Italian, Chinese, Japanese and Korean.
A full colour graphics LCD display with 320 x 240 resoluon landscape and a 6
key input including an on/o key.
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1 AC/DC adaptor
1 pressure dewpoint circular
calculator
1 USB ash drive with SHAW
SDHmini User Tool soware
1 instrucon manual
1 SHAW SDHmini User Tool Manual
The displayed units can be changed on both the primary and secondary displays for
the selectable moisture unit e.g. °C, °F, g/m3, ppm(v), ppm(w) and lbs/MMscf.
The SDHmini-L sengs can be adjusted by a user-friendly soware interface
incorporang mulple menus, hot key combinaons, informaon displays and
control funcons.
Use the supplied USB cable, aach between the PC and the instrument, an
automac connecon over USB is established.
The USB port allows:
● Charging of the baery (Li-ion) when connected to PC or dedicated
power supply
● Downloading of new rmware to the unit
● Downloading of setup data from dedicated PC soware
● Downloading logged data les and real me data from the unit
Alternavely, to connect the instrument using Bluetooth, rst ensure that the
instrument’s Bluetooth is switched on. There is no need to ask the instrument
to search for devices as in this mode of communicaon it is the PC which
iniates the pairing. Once connected over Bluetooth the connecon status is
shown in the boom le of the view panel.
The view panel allows access to many of the features, sengs and informaon
pages within the instrument.
A micro SD card is ed to the instrument, the contents of which can be
explored by clicking the SD card icon in the boom le of the view panel. The
contents may include user manuals, service notes, calibraon data sheets,
rmware backups etc..
The inbuilt memory, stores in excess of 300,000 readings including moisture
and pressure compensated moisture readings with user selectable logging
intervals from ve seconds to one hour and real-me data logging graphical
formats.
Data is stored under customer generated le names and stored data les can
be reviewed graphically on the unit. The rechargeable baery, when fully
charged, has in excess of 150 hours logging capability on a minimum logging
interval and is fully recharged in 12 hours.
6
7
2 Important Informaon
2.1 Bluetooth Cercaons
This equipment complies with FCC radiaon exposure limits set forth for an
uncontrolled environment - Contains FCC ID:QOQWT41/ QOQWT41u.
This device complies with Industry Canada licence-exempt RSS standard(s) -
Contains IC:5123A-BGTWT41/ 5123A-BGTWT41u.
WT41 meets the requirements of the standards below and hence fulls the
requirements of EMC Direcve 89/336/EEC as amended by Direcves 92/31/EEC
and 93/68/EEC within CE marking requirement.
WT41 has modular cercaon with cercaon number R 209-J00047/J00231.
2.2 Symbols Table
2.3 Lithium-ion Cell - Baery
The SDHmini-L is powered by a single lithium-ion cell. The cell
is not eld replaceable by the user as it is completely enclosed
within the instrument. However, the cell may be exchanged by
an authorised agent who has received the necessary training,
support systems and accreditaon. It is recommended to only
use the USB power supply supplied with the instrument.
It is recommended that the SDHmini-L be put on charge
overnight when the unit is rst received.
To aain maximum cell life, the SDHmini-L should always be
charged at room temperature. The discharging cell life (hours
of use from a fully charged cell) will reduce when used in cold
condions. Switch on the instrument to check if fully charged.
The symbol indicates that the device contains a baery which
may be charged via the USB connector.
Rang of instrument is less than 1 W in operaon. Charging
voltage is 5 V nominal.
2.4 Pressure Exposure
2.5 USB Communicaon Performance
Note: The use of the USB communicaon channel and
charging power port within the instrument may result in not
all connecons to all USB ports on all PCs or laptops being
enrely successful. Many USBs ports even within the same
PC or laptop dier from each other in electrical hardware or
rmware implementaons whilst sll broadly complying with
the overall USB standards giving rise to a variety of situaons
which may manifest in a reduced connecon experience. It
is recommended that if a parcular port is not connecng as
expected then the user ought to try an alternave port within
the PC or laptop or employ a USB Hub device which would
eecvely isolate the problemac PC or laptop USB port from
the instrument.
8
The maximum pressure to which the telescopic
measuring head is exposed should not be more than
0.3 bar, 4 psi
Exposing the measuring head to higher pressures may
damage the instrument and result in injury to the
operator or other personnel in the area.
!
9
3 Installaon
3.1 Gases to Avoid
The SHAW moisture sensors are suitable for many dierent industrial and
research applicaons. Most gases can be checked for their moisture content with
no need for the calibraon to be altered when changing between dierent gases,
as the sensor operates only with reference to the water vapour content.
There are however, some gases that must be avoided as they are not compable
with the material of construcon of the sensor. Ammonia (NH3), Ozone (O3) and
Chlorine (Cl2) must be avoided at all mes, even in small quanes. Hydrogen
Chloride (HCl) also aacks the sensors very quickly. Some, less aggressive acidic
gases such as Sulphur Dioxide (SO2) can be monitored as long as the moisture
content is low, generally less than 100ppm(v). If in doubt, please ask your supplier.
Sulphur Hexauoride (SF6) has no eect on the sensor. If the gas has been
exposed to arcing, however, it is possible that various acidic species will have
been formed that will corrode the sensor. When tesng SF6that may have been
arced, therefore, an acidity test should be carried out rst; if the gas proves to be
acidic then the moisture test should not be carried out.
3.2 Installing the Air/Gas Sampling System
The Piping Installaon Schemac diagram (see secon 3.3) shows all components,
which could be used in a dry gas measurement applicaon. Although not all the
items shown will be required for every installaon.
The main principle when considering the presentaon of the gas sample to the
SDHmini-L dewpoint meter is to keep the sample system as simple as possible
and of minimum swept volume, so that it has the least possible inuence on the
gas sample.
The SDHmini-L should be placed on a stable surface prior to connecng to the
sample pipework. Care should be taken to ensure that the sample presented
to the SDHmini-L is not contaminated with any component that will damage,
contaminate or aect in a way that will impair the unit’s accuracy.
The ow rate, although not crical to the sensor measurement, should be low
enough to avoid abrasion to the sensor surface without being so low as to extend
the SDHmini-L response me to an unacceptable level. In general, a ow rate
of between 2 and 5 litres/min at normal temperature and pressure will give the
right balance.
The SDHmini-L is designed to operate at atmospheric pressure with a maximum
of 0.3 bar.
3.3 Piping Installaon Schemac
Notes
The sample point should be on the upper surface of the horizontal pipe or from a vercal
secon of pipe, wherever possible.
The sample tube should run upwards from the sample point. If this is not possible, then an
inspecon port or drain tap should be installed at the lowest point in the sample system.
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