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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 

Phone: 
email:  
Web: 

+44 1803 869292 
[email protected] 
www.valeport.co.uk 

 
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 
 

 

Содержание MIDAS ECM

Страница 1: ...t 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...

Страница 2: ...tion 6 4 Recovery 7 5 Sample Battery Lifetime Calculations 8 5 1 Calculations Based on Memory 8 Continuous Data Sampling 8Hz 8 Burst Sampling 4Hz 8 Profiling 8 A Note About Removable Memory 9 5 2 Calc...

Страница 3: ...rings DataLog Express Software CD Operating Manual Transit case In addition the following components may be supplied as optional extras RS485 communications adapter RS422 communications adapter FSK m...

Страница 4: ...s Resolution 0 002 C 0 001m s The MIDAS ECM is technically capable of supporting other sensor types such as Turbidity Dissolved Oxygen Fluorometer Altimeter etc Such sensors require additional user at...

Страница 5: ...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 Switching Plug 10 pin male Subconn line type MCIL10M with lock ring Note...

Страница 6: ...type connector which should plug directly into a spare communications port on the back of the PC If non RS232 communications are to be used via the optional RS485 RS422 or FSK methods then the approp...

Страница 7: ...ed This is so the compass module is fitted correctly It is imper ative that the instrument is deployed in the correct orientation The housing will be marked accordingly The MIDAS ECM is supplied with...

Страница 8: ...ce The MIDAS ECM is fitted with an LED visible through a polycarbonate window in the battery pack The LED will flash as detailed below to indicate various states Continuous ON for 15 seconds Occurs wh...

Страница 9: ...g attention to the face and electrodes of the EM sensor the core of the conductivity sensor if fitted and the face of the sound veloc ity sensor if fitted Be careful not to damage the sensors A high p...

Страница 10: ...or obviously de pends on sampling scenario Here are three examples Continuous Data Sampling 8Hz Memory used per second is 6 x 8 bytes 48 bytes Total memory fitted is 16 777 216 bytes Seconds before me...

Страница 11: ...ry profile to get the memory card out All memory cards are susceptible to ESD shock static electricity while being handled We take the view that the value of your data means it shouldn t be exposed to...

Страница 12: ...fficient total available charge 16 6Ah Continuous data sampling 8Hz At 12V the instrument draws 140mA when sampling Total charge available is 10500mAh Number of hours available is therefore 10500mAh 1...

Страница 13: ...evice Whilst this risk is small it does exist and therefore must be considered The risk could be overcome by adding an air vent to the housing but this could compromise the water tight nature of the h...

Страница 14: ...ch should be checked periodically for damage and replaced if necessary 6 1 Changing Batteries The MIDAS ECM accepts 8 x D cells of either 1 5V alkaline or 3 6V Lithium type These cells are arranged in...

Страница 15: ...care not to scratch the bore of the tube 6 A lead connects the battery pack to the electronics inside the tube This may be disconnected at the battery pack if required for ease 7 Replace the batterie...

Страница 16: ...lternative source be sure to obtain the correct material signified by the last 4 digits of the O ring code number O ring size 200 158 4470 O Rings To help preserve the watertight nature of the equipme...

Страница 17: ...NC 10 Link to Pin 1 7 2 3m Y Lead RS232 END 1 10 Way SubConn MCIL10M DLSA M END 2 BANANA PLUG END 3 9 Way D TYPE FUNCTION PIN CONNECTOR PIN PIN 1 Black 4mm Plug 1 V SUPPLY 2 Red 4mm Plug 2 V SUPPLY 3...

Страница 18: ...3 9 RS422 TxA 4 10 RS422 TxB 5 11 RS422 RxA 6 12 RS422 RxB 7 2 RS232 Tx To PC 8 3 RS232 Rx From PC 9 5 5 link to 1 6 8 9 RS232 Ground 10 SHELL SHELL Internal Battery Enable 7 4 Altimeter Interface op...

Страница 19: ...yment frame SubConn switch plug DataLog x2 Windows software package 3m Y lead probe to PC and power supply RS232 USB adapter tool kit operating manual and system transit case 0808008A Self recording D...

Страница 20: ...ommunications 0808008B MIDAS ECM Acetal housing standard package with FSK communications 0808008C XX MIDAS ECM Acetal housing standard package with Pressure 0808008D 50 MIDAS ECM Acetal housing standa...

Страница 21: ...re may actually adjust the local flow conditions so it is a good idea to fix the instrument where it will be in the prevailing current as far as possible Secondly if the structure is metallic it may h...

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