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MIDAS ECM - OPERATING MANUAL
Document ID
MANUAL-738407771-1 | issue: 1.3
Date:
January 2022
This confidential document was prepared by the staff of Valeport Limited, the Company, and is the
property of the Company, which also owns the copyright therein. All rights conferred by the law of
the copyright and by virtue of international copyright conventions are reserved to the Company.
This document must not be copied, reprinted or reproduced in any material form, either wholly or in
part, and the contents of this document, and any method or technique available there from, must
not be disclosed to any other person whatsoever without the prior written consent of the Company.
© 2022 Valeport Ltd
Valeport Ltd
St Peter's Quay
Totnes TQ9 5EW
United Kingdom
As part of our policy of continuous development, we reserve the right to alter, without prior notice,
all specifications, designs, prices and conditions of supply for all our equipment
Phone:
+44 1803 869292
email:
sales@valeport.co.uk
Web:
www.valeport.co.uk
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Table of Contents
Related Manuals for Valeport MIDAS ECM
Summary of Contents for Valeport MIDAS ECM
- Page 1 Date: January 2022 This confidential document was prepared by the staff of Valeport Limited, the Company, and is the property of the Company, which also owns the copyright therein. All rights conferred by the law of the copyright and by virtue of international copyright conventions are reserved to the Company.
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Page 2: Table Of Contents
Connectors ......................... 3 2.3. Performance Specifications....................3 3. Installation ........................4 3.1. Communications With PC ....................4 3.2. Deploying the MIDAS ECM ....................5 Real Time Operation ......................6 Self-Recording Operation ....................6 LED Flashing Sequence ....................6 3.3. Altimeter Configuration ......................6 4. -
Page 3: Introduction
If you have any questions about the operation of the instrument, which are not answered by this manual, please contact your supplier if appropriate, or contact Valeport Ltd directly at the address given at the front of this manual. -
Page 4: Specifications
2. Specifications 2.1. Sensor Specifications The unit is fitted with the following sensors as standard: Current Speed Current Direction Type: Valeport 11cm discus EM sensor Valeport flux gate compass Range: 0 – 5m/s 0 – 360° Accuracy: ± (1% of reading + 0.005m/s) ±... -
Page 5: Mechanical Specifications
(MCBH6F) with lock ring) Comms Cable: Valeport 3m Y lead. 10 pin male Subconn line type (MCIL10M) to instru- ment, 2 x 4mm bunch pins to external power, 9 pin female D type to PC. 10 pin male Subconn line type (MCIL10M), with lock ring. Note that the... -
Page 6: Installation
(FSK uses power and signal on just two wires). Connect 9 pin D type from adapter to PC, and 4mm plugs from adapter to external power, as indicated on adapter © 2022 – Valeport Ltd Page | 4... -
Page 7: Deploying The Midas Ecm
PC as possible. When ordering the MIDAS ECM your preference for operation: Sensors Upward Facing or Sensors Downward Facing must be specified. This is so the compass module is fitted correctly. It is imper- ative that the instrument is deployed in the correct orientation. -
Page 8: Real Time Operation
LED sequences, less 5 seconds. 3.3. Altimeter Configuration Systems can be specified with Tritech PA series Altimeters. For the Midas ECM to correctly com- municate with the Altimeter, it needs to be configured as follows: Communication... -
Page 9: Recovery
MIDAS ECM - Operating Manual MANUAL-738407771-1 | issue: 1.3 4. Recovery On recovery, data can be extracted to PC via the 3m Y lead. This procedure is covered in the sep- arate software manual for DataLog Express or DataLog 400 / DataLog Pro as applicable. -
Page 10: Sample Battery Lifetime Calculations
Each record therefore uses 13 bytes • A single cast will take 10,000 such records and will therefore use 130,000 bytes. • The 16Mbyte memory will therefore hold approximately 125 casts worth of data. © 2022 – Valeport Ltd Page | 8... -
Page 11: A Note About Removable Memory
MIDAS ECM - Operating Manual MANUAL-738407771-1 | issue: 1.3 A Note About Removable Memory We are sometimes asked whether we offer these devices with removable memory. The answer is no we don’t, but there are sound reasons for this. It is natural to think that since removable memory cards are now the norm in consumer electronics, they must be “state of the art”... -
Page 12: Calculations - Based On Batteries
For Lithium cells, a similar calculation gives approximately 105 days. The above examples are intended as guides only Valeport accepts no responsibility for variation in actual performance Note that performance of individual battery cells is not always consistent © 2022 – Valeport Ltd... -
Page 13: A Note About Rechargeable Cells
MIDAS ECM - Operating Manual MANUAL-738407771-1 | issue: 1.3 A Note About Rechargeable Cells We are often asked if rechargeable cells can be used. Yes, it is possible to use rechargeable cells, but we do not recommend it: • Firstly, the cells cannot be recharged in-situ due to the possibility of the cells giving out gas in- side a sealed instrument, effectively turning it into an explosive device. -
Page 14: Maintenance
2. Remove the instrument from the protective cage by loosening the 4 x M10 nuts on the top of the cage. Lift off the top cage ring and the 4 spacer tubes below. © 2022 – Valeport Ltd Page | 12... - Page 15 MIDAS ECM - Operating Manual MANUAL-738407771-1 | issue: 1.3 3. Lift the instrument out of the cage, complete with the polypropylene mounting brackets. Take care to catch the central spacer tubes as you lift. 4. Remove the 3 M5 x 20 socket cap screws in the connector bulkhead, using the Allen key pro- vided.
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Page 16: Seals
Whenever an O-ring seal is opened (e.g. when changing batteries), ensure that a light coating of silicon grease is applied to the O-ring before the seal is closed. • Ensure that all O-ring protected seals are tightened. © 2022 – Valeport Ltd Page | 14... -
Page 17: Wiring Information
MIDAS ECM - Operating Manual MANUAL-738407771-1 | issue: 1.3 7. Wiring Information 7.1. Switch Plug 10 Way Male SubConn Function Link to Pin 10 Link to Pin 1 7.2. 3m Y Lead (RS232) END 1: 10 Way SubConn END 2:... -
Page 18: Switched Y Lead (Rs485 & Rs422)
7.4. Altimeter Interface (optional) End 1: End 2: Altimeter SubConn MCIL6M TriTech Connector (RS232) Function Sensor Power (0V)/RS232 GND RS232 Rx into Logger Sensor Power (+24V) RS232 Tx Out of Logger 6 (SCREEN) Chassis Ground © 2022 – Valeport Ltd Page | 16... -
Page 19: Ordering And Part Numbers
MIDAS ECM - Operating Manual MANUAL-738407771-1 | issue: 1.3 8. Ordering and Part Numbers Description Part No. Basic Instruments Self-recording / Direct reading ElectroMagnetic Current meter Titanium housing Fitted with: • 11cm discus sensor and compass measuring speed and direction •... - Page 20 Section 8 | Ordering and Part Numbers Options The part numbers below are full package options as above but with extra parameters or commu- nication variants. MIDAS ECM | Titanium housing | standard package 0808007B with FSK communications MIDAS ECM | Titanium housing | standard package...
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Page 21: Appendix 1: Faq's
MIDAS ECM - Operating Manual MANUAL-738407771-1 | issue: 1.3 Appendix 1: FAQ’s Can I make current profile measurements with the MIDAS ECM? Yes, you can, but not in the way that an ADCP will. The M ECM is a point current measure- IDAS ment device, i.e.
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