Related Manuals for Shaw SDHmini-L
Summary of Contents for Shaw SDHmini-L
- Page 1 Model SDHmini-L Dewpoint Meter Instruction Manual 3005 SDHmini-L User Manual - Iss 1.2...
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Page 3: Table Of Contents
3.3 Piping Installation Schematic ..........10 3.4 Piping Schematic Component Index ........11 3.5 Purging the Sample Connection ......... 11 3.6 Using the SDHmini-L to Take a Moisture Reading ....12 3.7 Desiccant Dry-Down Technology ........13 3.8 Sample Connections ............14 3.9 Pressure and Flow Control .......... - Page 4 9.5 Data Logging Storage ............31 Additional Information ............. 31 10.1 Temperature ..............31 10.2 Response Time ............... 31 10.3 Guarantee ............... 32 10.4 Basic Definitions ............. 32 10.5 Problem Guide ..............33 SDHmini-L Specifications ............34 SDHmini-L General Assembly Diagram ........35...
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Page 5: Introduction
1 Introduction 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 notify the carrier and the SHAW Moisture Meters representative from where this unit was purchased. - Page 6 The displayed units can be changed on both the primary and secondary displays for the selectable moisture unit e.g. °C, °F, g/m , ppm(v), ppm(w) and lbs/MMscf. The SDHmini-L settings can be adjusted by a user-friendly software interface incorporating multiple menus, hot key combinations, information displays and control functions.
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Page 7: Important Information
2.2 Symbols Table 2.3 Lithium-ion Cell - Battery The SDHmini-L is powered by a single lithium-ion cell. The cell is not field 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 accreditation. -
Page 8: Pressure Exposure
2.4 Pressure Exposure 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. -
Page 9: Installation
The SDHmini-L should be placed on a stable surface prior to connecting 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 affect in a way that will impair the unit’s accuracy. -
Page 10: Piping Installation Schematic
SDHmini-L response time to an unacceptable level. In general, a flow 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. -
Page 11: Piping Schematic Component Index
4 is fitted to the system. Flow Control Valve. Sample Connection. SDHmini-L. Flow Indicator – The recommended sample flow is 2 to 5 L/min. Sample Exhaust – The exhaust is vented to atmosphere or returned to an atmospheric pressure line. -
Page 12: Using The Sdhmini-L To Take A Moisture Reading
(6). Allow the gas to purge for a further two minutes with the head down. Restrict the outlet of the SDHmini-L (7) by placing a finger over the sample exhaust (9), so that the pressure of the sample lifts the telescopic head. -
Page 13: Desiccant Dry-Down Technology
Dry-Down Position Read Position Keeping the sensor dry between tests ensures that the SDHmini-L is ready to carry out rapid spot checks. The unique design of the desiccant head achieves this by surrounding the sensor with desiccant, keeping the sensor dry. The head is then lifted for sampling, exposing the sensor to the sample gas. -
Page 14: Sample Connections
3.8 Sample Connections The SDHmini-L is supplied with two connections: a Fir Tree on one side and a Swagelok compression fitting for ¼”, ⅛”, 6 mm OD pipe or another Fir Tree fitting (as specified on your order) on the other. Either can be used as the inlet connection (6). -
Page 15: Particulate Contamination
3.10 Particulate Contamination If the sample gas is likely to contain particulate material this should be kept away from the sensor by including a small inline particle filter (2) in the sample system. If the surface of the sensor becomes partly coated with particles it will not affect the calibration of the sensor but will restrict the movement of water molecules across the surface so increasing the time it takes for the sensor to come to equilibrium with the water vapour concentration around it. -
Page 16: Normal Operations
4 Normal Operations 4.1 Powering On/Off To switch on (and off), press the SDHmini-L briefly displays a splash screen showing instrument status, error information and firmware version number. 4.2 Graphical Viewing Options The start up screen is soon replaced by the normal measurement mode screen (see below) displaying the current moisture measurement in a variety of views. -
Page 17: Choice Of Units
4.4 Choice of Units In normal measurement mode. The secondary display is the measurement displayed in the top bar on the right hand side (A). It allows alternative engineering units or concentrations to be displayed alongside those chosen in the main display. To choose the engineering units to be displayed, select the units key from the main digital view. -
Page 18: Calibration
0 °C dewpoint as the moisture concentration rises above 0 °C dewpoint. The SDHmini-L can therefore be adjusted to read 0 °C dewpoint on any gas with a moisture concentration wetter than 0 °C dewpoint, ambient air for instance, thus setting the span to match the original calibration. -
Page 19: Calibration Setpoint (Calset)
The SDHmini-L will display a moving bar until it assesses that the sensor has stabilised (please allow up to ten minutes for this to occur). The SDHmini-L will now display the full scale value of the unit, either -20 °C or 0 °C depending on the sensor range. -
Page 20: Calibration Procedure Error Messages
Press when done. The SDHmini-L will display a moving bar until it assesses that the sensor has stabilised (up to 10 minutes). The full scale value, -10 °C dewpoint, is now displayed. Press when complete. -
Page 21: Sensor Related Settings
6.1 Sensor Type Here you may view the type of sensor installed in the SDHmini-L and its range. 6.2 Selecting Gas Types The SDHmini-L default setting is for ideal gas behaviour, however, there is an option to change the setting to natural gas which uses the appropriate calculation. -
Page 22: Non Measurement Related Configuration Functions
The SDHmini-L requires that a numerical pressure value be entered in the selected units at the bottom of the units selection section, for example selecting pressure dewpoint of 2,000 psig on secondary display. Warning: This function is purely an internal calculation and DOES NOT allow an elevated pressure to be applied to the measuring head. -
Page 23: Changing The Time
The language choice area is highlighted. A flag of a country most associated with one of the pre-installed languages indicates which language is currently selected. The SDHmini-L operates with the following 10 language options: English, German, French, Spanish, Portuguese, Russian, Italian, Chinese, Japanese and Korean. -
Page 24: Hotkeys
7.4 Hotkeys To access the hotkeys from the main screen, press key 5 on the keypad. The four soft keys are replaced by a new set of hotkeys for a short while. These are available for rapid access to certain areas of the menu structures or functions. Turns ON and OFF the inbuilt sounder. - Page 25 Enter the pairing authorisation code for the device and press to connect. The message will say Connecting and finally Connected. If a problem exists then the message will turn red and say Connection Failed. This maybe due to: ● An incorrect authorisation code ●...
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Page 26: Data Logging
9 Data Logging Press on your data logging instrument to start the data logging. You will now see the following on the instrument screen which is reminiscent of a traditional strip chart recorder. Please note the default sample rate is shown on the right hand side of the screen below the horizontal time axis. -
Page 27: Snapshot
9.2 Snapshot You may notice that when the strip chart has traversed more than half of the way across the screen then another icon appears, this time on the left hand side. It is called the Snapshot function icon. Pressing the Snapshot key will not stop the data logging event but will show a snapshot of the current chart line. - Page 28 There is provision for 20 Location IDs to be held on the SDHmini-L. Here is an example of how to create a new Location ID called TEST. Select Location ID and press Select an empty slot or overtype an old one.
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Page 29: Logged Data Review
The SDHmini-L automatically calculates the Duration and displays it below the line along with the expected File Size and Memory Required. For Location ID "TEST", the number of data points potentially collected is set to be 8640, giving 6 days duration of the logging event. - Page 30 You may also print the data file using the printer icon key, provided as before, that the Bluetooth connection has been maintained or established. Alternatively, press to return to the Logged Data Review screen then continue viewing the data log file on the strip chart by selecting The value of the current measurement at the red cursor line is shown on the right side of the top bar area.
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Page 31: Data Logging Storage
This is the reason that the SHAW SDHmini-L is so successful. The sensor is kept in a dry condition when it is not in use and therefore results are obtained in the quickest possible time. -
Page 32: Guarantee
10.3 Guarantee All SHAW products are guaranteed for two years from the date of purchase, some exclusions are as follows: Removing protective guard from any sensor, subjecting sensor to shock or black list gases e.g. -
Page 33: Problem Guide
Parts Per Million by Weight ppm(w) is the ratio of the molecular weight of water vapour to the molecular weight of the carrier gas mixture. Relative Humidity The ratio of the actual water vapour pressure in the gas to the saturation water vapour pressure at the same temperature. -
Page 34: Sdhmini-L Specifications
-80 °C to +20 °C dewpoint, 0 - 23000 ppm(v) Silver (S): -100 °C to -20 °C dewpoint, 0 - 1000 ppm(v) Gold (Gl): -110 °C to 0 °C dewpoint, 0 - 6000 ppm(v) Sensor: Operating Principle: SHAW Ultra High Capacitance Aluminium Oxides Sensor... -
Page 35: Sdhmini-L General Assembly Diagram
12 SDHmini-L General Assembly Diagram FRONT VIEW REAR VIEW SIDE VIEW TOP VIEW 97 mm... - Page 36 3005 SDHmini-L User Manual - Iss 1.2 © SHAW MOISTURE METERS UK (LTD) 2018 Shaw Moisture Meters (UK) Ltd. Len Shaw Building Bolton Lane Bradford BD2 1AF England t. +44 (0)1274 733582 f. +44 (0)1274 370151 e. mail@shawmeters.com www.shawmeters.com...