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Related Manuals for Alpha Moisture Systems SADPmini
Summary of Contents for Alpha Moisture Systems SADPmini
- Page 1 Model SADPmini Instruction Manual Alpha Moisture Systems Alpha House 96 City Road Bradford BD8 8ES England Tel: +44 1274 733 100 Fax: +44 1274 733 200 Email: info@amsytems.co.uk Web: www.amsystems.co.uk...
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Page 2: Warranty
Warranty Alpha Moisture Systems Ltd. (AMS) warrants the products it manufactures, or distributes, to be free of defects in material and workmanship under normal use and service when operated within the specified design limitations for a period of 24 months from date of initial shipment. - Page 3 Page iii...
- Page 4 Instruction Manual For the SADPmini Automatic Dewpoint Hygrometer 1226 SADPmini User Manual.doc Issue 15 22/05/19 Page iv...
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Page 5: Table Of Contents
Table of Contents ........................ 1 ENERAL NFORMATION ............................1 EATURES ........................2 AFETY NFORMATION ............................. 2 ARNING .............................. 2 ATTERY 3.2.1 Lithium-Ion ..............................2 3.2.2 Initial Charging..............................2 ................3 NSTALLING THE AMPLING YSTEM ....................... 4 IPING INSTALLATION CHEMATIC ....................4 IPING CHEMATIC OMPONENT... - Page 6 13 B ......................22 ATTERY URRENT TATUS 14 P ......................22 ERFORMING AN 14.1 ........................22 MBIENT CONDITIONS 14.2 ..........................23 EFERENCE GAS 15 SADP 4-20 A ........................23 MINI 15.1 SADP 4-20 ......................23 MINI IRCUIT 15.2 ) ................24 ALCULATING AXIMUM UTPUT...
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Page 7: General Information
1 General Information • The SADPmini is a battery powered portable instrument. It is a fully self-contained unit incorporating the moisture sensor, signal conditioning circuitry, memory management, graphics display, membrane keyboard, Real Time Clock, onboard battery and charger circuit. • The SADPmini operation is controlled by a user-friendly software interface incorporating multiple menus, hot key combinations, information displays and control functions. -
Page 8: Safety Information
3.2.2 Initial Charging • It is recommended that the SADPmini be put on charge overnight when first received. Only use the Charger supplied with SADPmini • To attain maximum battery life the SADPmini should always be re-charged at room temperature. -
Page 9: Installing The Air/Gas Sampling System
Care should be taken to ensure that the sample presented to the SADPmini is not contaminated with any component that will damage, contaminate or affect the SADPmini in a way that will impair the unit’s accuracy. -
Page 10: Piping Installation Schematic
4.1 Piping installation Schematic Main Process Line Notes The sample point should be on the upper surface of the horizontal pipe, or from a vertical section of pipe, wherever possible. The sample tube should run upwards from the sample point. If this is not possible, then an inspection port or drain tap should be installed at the lowest point in the sample system. -
Page 11: Purging The Sample Connection
6 Using the SADPmini to take a Moisture Reading Refer to the sample system schematic in section 4.1. The first purpose of the SADPmini is to provide a rapid, easy and reliable means of carrying out moisture content measurements, of gases. To ensure rapid response the sensor is kept dry by surrounding the sensor with desiccant in the head assembly when it is not in use. -
Page 12: Taking A Measurement
Head Lowered Head Raised Restrict the outlet of the SADPmini (7) by placing a finger over the sample exhaust (9), so that the pressure of the sample lifts the telescopic head. As soon as the head is fully extended remove the finger, to prevent pressure build up. Pull gently on the head to make sure it is fully extended. -
Page 13: Sample Pipe
7.1 Sample Pipe The SADPmini is supplied with 2 connections: a “fir tree” on one side and a Swagelok ® compression fitting for in, or 6mm OD pipe (as specified on your order) on the other. Either can be used as the inlet connection (6). -
Page 14: Particulate Contamination
8 SADPmini Initial Configuration Each SADPmini is set up prior to despatch to the end users specification. The following values will be preset: - • The specified sensor type is pre-selected. -
Page 15: The Normal Display Screen
9 The Normal Display screen When the SADPmini is ON, it displays the moisture level of the gas that the sensor is exposed too. When the head is lowered, the sensor is no longer exposed to the gas and is dried down by the desiccant in the head. -
Page 16: Entering Alphanumerical Data
Description – This sub-menu has eight options allowing the user to select any one of seven Moisture Engineering Units and to exit the menu. Note: - 1) Once an engineering unit is selected, the SADPmini will only display and accept inputs in that chosen unit. This means that 4-20mA settings (where fitted), offsets and SPCs are all performed in the chosen units. -
Page 17: Pressure Calc
The default setting is for the output range to cover the full operating range of the sensor type fitted in the SADPmini e.g. for a ‘B’ type sensor output 4mA equals –80°C and 20mA equals 20°C. However, it is possible to set a more focused range, such as 4mA equals -60°C and 20mA equals –20°C. -
Page 18: Autocal
Pressing ‘’ key again will return the instrument to operational mode. Note - Avoid carrying out the AutoCal procedure on a SADPmini with a full scale value of 0°C dewpoint on days when the ambient dewpoint may to be below this value, for example a dry day when the ambient temperature is below around 12°C. -
Page 19: Spc (Single Point Calibration)
4) The entered AutoCal Value must not be pressure compensated (see 11.1.2). 11.1.5 SPC (Single point Calibration) Description – The SPC facility allows users of the SADPmini to check the reading of the instrument against a “standard reference gas” or instrument, such as a chilled mirror unit, at a particular value that may be considered to be critical, and make any adjustment necessary to give agreement with that “standard reference.”... - Page 20 1. An AutoCal must be carried out before performing an SPC. 2. Measure the value of the reference gas with the SADPmini in the normal way and note the indicated value and the stated value of the “standard reference.” [For example, the SADPmini reads -70°C dewpoint, and the “standard reference gas”...
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Page 21: Security
3. Measure the value of the reference gas with the SADPmini in the normal way and note the indicated value and the stated value of the “standard reference.” [For example, the SADPmini reads -70°C dewpoint, and the “standard reference gas”... -
Page 22: Time And Date
Operation – In the ‘Setup Menu’ select the ‘Time and Date’ option. 11.1.8 Set Clock Description – The Clock option allows the user to set the SADPmini internal Real Time Clock. Operation – In the ‘Setup Menu’ select the ‘Set Clock’ option. The user is prompted to enter the Date in the DD/MM/YY format followed by the time in the HH:MM:SS in 24-hour format. -
Page 23: Temperature
Note: If the number of data points in a single block exceeds 12800 only the first 12800 will be downloaded from the SADPmini to a PC. It is therefore recommended that a sample rate be chosen that over the logging period will result in less than 12800 readings being taken Operation –... -
Page 24: Review Data
The selection screen shows the TAG reference, block number plus the date & time when data was stored. The SADPmini by default displays the most current data block first and subsequently runs through the remaining blocks in chronological order. -
Page 25: Pc Comms
PC. Operation – In the ‘Logging Menu’ select the ‘PC COMMS’ option. Ensure the SADPmini is connected to the PC using the cable supplied. Start the PC software (See SADPmini Logger software user guide) and press the ‘’ key twice. -
Page 26: Edit Tag
‘Default TAG’. 11.2.8 Printer LOG Description – This function allows the user to real-time log the moisture value seen by the SADPmini to any ASCII thermal printer via the RS485 ‘D’type connector Page 20 of 33... -
Page 27: Unit Address
‘External LOG’ display screen, which indicates the current moisture value. Pressing the ‘’ key at any point will stop logging. Note: By default the SADPmini will output a moisture value in the current units every 6 seconds. 11.2.9 Unit Address Description –... -
Page 28: Battery Currents
SADPmini. 14.1 Ambient conditions Pump the SADPmini head up and down a few times to ensure that the air surrounding the sensor in the SADPmini head is representative of the ambient moisture value. Leave the head Page 22 of 33... -
Page 29: Reference Gas
SADPmini when asked to enter the AutoCal Value. 14.2 Reference gas Connect the SADPmini to a reference gas, raise the SADPmini head and ensure that a flow of 5 to 8 L/M is obtained. Allow the sensor to stabilise so that the gas surrounding the sensor in the SADPmini head is representative of the reference gas moisture value. -
Page 30: Aximum Output Load (Rext )
= 1065 = 28V : R = 1265 16 RS485 Communications The RS485 Half Duplex communications signal is driven by a MAX3471 interface chip. The SADPmini connections are: - RS485 (B) Connector Pin 7 RS485 (A) Connector Pin 1 Connector Pin 8... -
Page 31: Sadp Mini Loggings
17 SADPmini Logging Software Cables and Interfaces There are 2 types of interface that can be used with the SADPmini and SADPmini Logging software. 17.1 RS232 to RS485 Cables & Interface Recommended for Windows XP, Vista and Windows 7 The Interface unit INT007 has two 9-way ‘D’ type connectors. The connector marked with a ‘B’... -
Page 32: Usb To Rs485 Cables
The Interface unit INT008 has a 9-way ‘D’ type connector and a USB connector. The USB connects to a PC or Laptop USB Port using a 1.8m USB cable (Part No: CAB031). The ‘D’ type connects to the SADPmini using a 1m special cable (Part No: CAB033). -
Page 33: Technical Details Of The 19 Sadp Mini Protocol
7. Offer up the top half shell. 8. Secure using the 2 fixing screws (3). 14,6 Note: This connecter is not used in conjunction with the SADPmini logging software. See section 17.0 for cables used with the SADPmini logging software Page 27 of 33... - Page 34 19 SADPmini Protocol Contact your supplier for the “SADPmini Protocol Manual”. Page 28 of 33...
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Page 35: Instructions Forr
SOFT JAWS - DO NOT USE TOOLS OR VICE WITH HARD JAWS. 8. Fit Desiccant Head Base “O” Ring (3) 9. Insert Desiccant Head in the main SADPmini body and tightly screw in the Retaining Collar. Page 29 of 33... -
Page 36: Appendix A - Sadpmini Setup Menu Map
21 Appendix A – SADPmini Setup Menu Map ENTER CODE 1000 SETUP MENU SELECT UNITS PRESSURE CALC 4-20mA OUTPUT AUTO-CAL SECURITY SELECT UNITS PRIMARY UNITS ºC ºF ppm[V] ppm[W] g/m3 PRESSURE CALC PRESSURE UNITS SET PRESSURE 000.0 psig barg barg... -
Page 37: Appendix B - Sadpmini Logging Menu Map
22 Appendix B – SADPmini Logging Menu Map LOGGING MENU Internal LOG Review DATA Export DATA Delete DATA Create TAG Edit TAG Internal LOG Select Log Tag LOGGING DATA Interval [Mins] TAG 1 TAG1 LOGGING Logs Free 16000 0001.0 OZZY EMPTY -11.7 ºC... -
Page 38: Appendix C - Trouble Shooting
23 Appendix C – Trouble Shooting Fault Explanation Required Action Notes Unit does not turn on. Battery low level Connect the battery charger Connecting the external Screen remains blank. unit for a minimum of 6 battery charger will not Back light off hours charging. -
Page 39: Appendix D - Sadpmini Specification
100-240VAC, 50-60Hz, 400mA Output: 6VDC, 15W Battery Cell: 3.6V Li-Ion 2.3Ah capacity Charging: Full Charge in 6 hours. Only use the Charger supplied with SADPmini Capacity Minimum of 250hrs* on full charged battery Enviromental Approvals: EMC: Certified to BS EN 61326-1 Physical Weight: 1.1kg (2.4lbs)
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