Shaw SDHmini-L User manual

Model SDHmini-L
Dewpoint Meter
Instrucon Manual
3005 SDHmini-L User Manual - Iss 1.2

Contents
1
2
3
4
5
Introducon ................................................................................ 5
1.1 Unpacking Your SHAW Moisture Meters SDHmini-L .............. 5
1.2 General Descripon .............................................................. 5
Important Informaon ................................................................ 7
2.1 Bluetooth Cercaons ....................................................... 7
2.2 Symbols Table ....................................................................... 7
2.3 Lithium-ion Cell - Baery ...................................................... 7
2.4 Pressure Exposure ................................................................ 8
2.5 USB Communicaon Performance ....................................... 8
Installaon .................................................................................. 9
3.1 Gases to Avoid ...................................................................... 9
3.2 Installing the Air/Gas Sampling System ................................ 9
3.3 Piping Installaon Schemac ............................................. 10
3.4 Piping Schemac Component Index ................................... 11
3.5 Purging the Sample Connecon ......................................... 11
3.6 Using the SDHmini-L to Take a Moisture Reading .............. 12
3.7 Desiccant Dry-Down Technology ........................................ 13
3.8 Sample Connecons ........................................................... 14
3.9 Pressure and Flow Control ................................................. 14
3.10 Parculate Contaminaon ............................................... 15
3.11 Liquid Contaminaon ....................................................... 15
Normal Operaons ................................................................... 16
4.1 Powering On/O ................................................................ 16
4.2 Graphical Viewing Opons ................................................. 16
4.3 Display Opons .................................................................. 16
4.4 Choice of Units ................................................................... 17
Calibraon ................................................................................ 18
5.1 Auto Calibraon (AutoCal) ................................................. 18
5.2 Calibraon Setpoint (CalSet) .............................................. 19
5.3 Calibraon Procedure Error Messages ............................... 20
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4
6
7
8
9
10
11
12
Sensor Related Sengs ............................................................. 21
6.1 Sensor Type ...................................................................... 21
6.2 Selecng Gas Types .......................................................... 21
6.3 Selecng Gas Molecular Weights ..................................... 21
6.4 Pressure ............................................................................ 21
Non Measurement Related Conguraon Funcons ................. 22
7.1 Changing the Date ............................................................ 22
7.2 Changing the Time ........................................................... 23
7.3 Changing Internaonal Sengs ....................................... 23
7.4 Hotkeys ............................................................................. 24
Bluetooth Printer Conguraon ................................................ 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
Addional Informaon ............................................................. 31
10.1 Temperature ................................................................... 31
10.2 Response Time ............................................................... 31
10.3 Guarantee ....................................................................... 32
10.4 Basic Denions ............................................................. 32
10.5 Problem Guide ................................................................ 33
SDHmini-L Specicaons ........................................................... 34
SDHmini-L General Assembly Diagram ...................................... 35

1 Introducon
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 nofy the carrier and the SHAW Moisture Meters
representave 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 Descripon
The SDHmini-L is a micro-controller based baery operated dewpoint
hygrometer with state of the art features and enhancements with support of
USB and Bluetooth interfaces for communicang with PC and also support for
thermal printer over Bluetooth.
It is a fully self-contained unit incorporang the moisture sensor, signal
condioning circuitry, memory management, graphics display, membrane
keyboard, real me clock, on-board baery 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 tradional
moving coil). There is also a secondary display in the top right which allows
display of readings in alternave units of measurement.
The unit operates with the following 10 language opons: English, German,
French, Spanish, Portuguese, Russian, Italian, Chinese, Japanese and Korean.
A full colour graphics LCD display with 320 x 240 resoluon 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 soware
1 instrucon 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 sengs can be adjusted by a user-friendly soware interface
incorporang mulple menus, hot key combinaons, informaon displays and
control funcons.
Use the supplied USB cable, aach between the PC and the instrument, an
automac connecon over USB is established.
The USB port allows:
● Charging of the baery (Li-ion) when connected to PC or dedicated
power supply
● Downloading of new rmware to the unit
● Downloading of setup data from dedicated PC soware
● Downloading logged data les and real me data from the unit
Alternavely, 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 communicaon it is the PC which
iniates the pairing. Once connected over Bluetooth the connecon status is
shown in the boom le of the view panel.
The view panel allows access to many of the features, sengs and informaon
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 boom le of the view panel. The
contents may include user manuals, service notes, calibraon 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 baery, when fully
charged, has in excess of 150 hours logging capability on a minimum logging
interval and is fully recharged in 12 hours.
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7
2 Important Informaon
2.1 Bluetooth Cercaons
This equipment complies with FCC radiaon 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 fulls the
requirements of EMC Direcve 89/336/EEC as amended by Direcves 92/31/EEC
and 93/68/EEC within CE marking requirement.
WT41 has modular cercaon with cercaon number R 209-J00047/J00231.
2.2 Symbols Table
2.3 Lithium-ion Cell - Baery
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 accreditaon. 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 aain 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
condions. Switch on the instrument to check if fully charged.
The symbol indicates that the device contains a baery which
may be charged via the USB connector.
Rang of instrument is less than 1 W in operaon. Charging
voltage is 5 V nominal.

2.4 Pressure Exposure
2.5 USB Communicaon Performance
Note: The use of the USB communicaon channel and
charging power port within the instrument may result in not
all connecons to all USB ports on all PCs or laptops being
enrely successful. Many USBs ports even within the same
PC or laptop dier from each other in electrical hardware or
rmware implementaons whilst sll broadly complying with
the overall USB standards giving rise to a variety of situaons
which may manifest in a reduced connecon experience. It
is recommended that if a parcular port is not connecng as
expected then the user ought to try an alternave port within
the PC or laptop or employ a USB Hub device which would
eecvely isolate the problemac 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 Installaon
3.1 Gases to Avoid
The SHAW moisture sensors are suitable for many dierent industrial and
research applicaons. Most gases can be checked for their moisture content with
no need for the calibraon to be altered when changing between dierent 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 compable
with the material of construcon of the sensor. Ammonia (NH3), Ozone (O3) and
Chlorine (Cl2) must be avoided at all mes, even in small quanes. Hydrogen
Chloride (HCl) also aacks 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 Hexauoride (SF6) has no eect 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 tesng 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 Installaon Schemac diagram (see secon 3.3) shows all components,
which could be used in a dry gas measurement applicaon. Although not all the
items shown will be required for every installaon.
The main principle when considering the presentaon 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 inuence on the
gas sample.
The SDHmini-L should be placed on a stable surface prior to connecng 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 aect in a way that will impair the unit’s accuracy.
The ow rate, although not crical 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 Installaon Schemac
Notes
The sample point should be on the upper surface of the horizontal pipe or from a vercal
secon of pipe, wherever possible.
The sample tube should run upwards from the sample point. If this is not possible, then an
inspecon port or drain tap should be installed at the lowest point in the sample system.
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