Wildlife Acoustics Song Meter SM2M+ Submersible User'S Manual Supplement Download Page 30

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Electrical Specifications

Audio Sample Rate: 4 kHz – 96 kHz (4 kHz – 384 kHz with Ultrasonic

Upgrade)

Storage Media: Up to four 32GB SDHC or up to four 128GB SDCX

Submersible Battery

Capacity:

Up to 32 alkaline, LSD NiMH or lithium manganese
cells

Deep Water Battery

Capacity:

Up to 64 alkaline, LSD NiMH or lithium manganese
cells

Note: Full specifications for the SM2+ Platform can be found
in the SM2+ Platform User Manual.

Summary of Contents for Song Meter SM2M+ Submersible

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Page 3: ...5 25 13 All rights reserved Wildlife Acoustics is registered in the U S Patent and Trademark Office Song Meter SM2 SM2M and WAC are trademarks of Wildlife Acoustics Inc All other trademarks are the property of their respective owners Patents pending ...

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Page 5: ...ies 9 Clock Batteries 11 Flash Cards 11 Sealing the Housing 13 Preparing the Top Cap 13 Installing Battery Board and Connecting 14 Installing Top Cap 15 Deployment 18 Depth Rating 18 Anchoring Solutions 18 Retrieval and Shipside Refurbishment 20 Retrieval 20 Opening Recorder 20 Flash Card and Battery Replacement 20 Resealing 21 Storage and Transport 22 Specifications 23 Physical Specifications 23 ...

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Page 7: ...ice shipside for immediate redeployment The batteries and SD flash cards can be easily swapped and the housing resealed for redeployment The device can be anchored and recovered via tether diver or optional acoustic release A high quality case is included for storage and transportation Use of this Document This document is a supplement to the Song Meter SM2 User Manual It is not intended as a stan...

Page 8: ... 2013 SM2M User Manual You may want to download and install the Kaleidoscope conversion software and the Song Meter Configuration Utility software from the downloads section of our website at www wildlifeacoustics com ...

Page 9: ...ter is rated to 1500 meters which is achieved with a hard coat anodized and epoxy painted aluminum housing Both units use the same base electronics mother board that accepts 32 D cell batteries as shown in the photo below more batteries are installed on the back of the board For the power capacity difference the Deep Water unit has a second board attached to the motherboard This second board also ...

Page 10: ...orpoise echolocation calls but also ultrasonic anthropogenic sounds as well The low noise hydrophone is for recording ultra quiet environments such as remote marine sanctuaries deep water locations or long range offshore sites It has the lowest noise floor of all the hydrophones with its self noise being well below sea state 0 over its entire recording bandwidth See the self noise chart on the fol...

Page 11: ... of the other hydrophones in a dual hydrophone configuration the unit can record quiet or distant sounds from any source including marine life with one hydrophone and at the same time accurately record and quantify very loud sounds from anthropogenic sources with the High SPL ...

Page 12: ...ufacture This value will be on a tag attached to the hydrophone cable and is reported as the average value over the band from 200Hz to 1 6 kHz in 100Hz steps From the frequency response below you can extrapolate sensitivity across the rest of the frequency range with some degree of accuracy as they are quite consistent in response ...

Page 14: ...ge Further gain will not allow recording quieter sounds due to the self noise of the standard hydrophone Test recordings are encouraged to select the optimal gain Except in a dual hydrophone configuration the unit is shipped with both Song Meter channels connected to the single hydrophone so it is also possible to record both channels with two different gain and filter settings The 2 5V Mic Bias s...

Page 15: ... it is arbitrary which channel you select for recording This does present some opportunity for creative recording Different gain sample rate and trigger levels could be used on the different channels For example you might want to record at a high sample rate with a high pass filter to filter out lower sounds with more gain on one channel and a lower sample rate with no filter and less gain on the ...

Page 16: ...rees and reinstalled This configures the battery cells in parallel groups of 2 There is a small white arrow on the main battery board that aligns with the arrow on the diode board as shown in the 1 5V position below Warning Installing D cell batteries with a higher voltage than 1 5V without properly configuring the diode board shown below will damage the unit Batteries must be inserted in the prop...

Page 17: ...e within each of the two categories in the chart 4 kHz 96 kHz and 192 kHz 384 KHz the rate selected will not greatly affect battery longevity For example 96 kHz sample rate will not consume a significantly different amount of power compared to 4 kHz nor will 384 KHz consume more than 192 kHz Clock Batteries Two AA batteries run the SM2M clock These should be alkaline batteries While they can last ...

Page 18: ...ith the high sample rates required for ultrasonic recording This can result in occasional distorted areas in the recordings The SM2M will suppress the effects of skipping flash cards making the effect less obvious so that the skips will not interfere with analysis But for best results you should still check your flash cards with the SD card speed test in the Utilities Menu on the SM2M This test wi...

Page 19: ...two are used to assure a seal if one should become compromised The O ring seal is designed for depths far greater than the rated depth of the housing so with proper installation the unit is sure to seal at any depth Preparing the Top Cap It is extremely important that the O rings be clean free of defects and properly lubricated Take the O rings and apply a small amount of the included lubricant Ap...

Page 20: ...e board in place and prevents movement during deployment The hydrophone cable should be looped twice through the large finger hole at the top of the board and then plugged into either connector they are both electrically tied together Looping the cable provides strain relief so the wire twists above the hole and not at the connection point Always inspect the connector prior to sealing to make sure...

Page 21: ...ng Top Cap Before inserting the cap rotate the cap in the reverse direction of tightening four times It takes eight turns to seal the cap so this will keep a maximum of four turns on the hydrophone cable Insert the cap and rotate by hand a couple turns to get it started When the first O ring engages it will become more difficult Insert the included spanner wrenches into the interfacing holes One w...

Page 22: ...phone cage into the four top cap holes Cinch a cable tie around the entire assembly to prevent the cage from slipping out of the mounting holes There are grooves in the side of each leg to hold the cable tie in place The unit is now ready to be attached to an anchor system and deployed ...

Page 23: ...nt and a tube of O ring lubricant Additional deployment supplies can be purchased from McMaster Carr http www mcmaster com O rings are part number 9557K333for the Submersible model or 9557K335 for the Deep Water model 5 pack of desiccant is part number 2189K18 O ring lubricant is part number 9463K33 ...

Page 24: ...esting failure did not start until the equivalent pressure of about 1000ft 3000m but for long term deployments we can only guarantee with warranty deployments under the 1500m rating Anchoring Solutions The SM2M can be anchored from the 316 stainless steel eyebolt on the bottom of the housing For the Deep Water there is a mounting bracket welded on to the bottom The eyebolt was tested for a 150lb l...

Page 25: ...t 2011 2013 SM2M User Manual 19 ocean floor by playing an acoustic signal from the surface In this case it is generally necessary to use a subsea float to increase the visibility of the housing when it surfaces ...

Page 26: ...ling It may be necessary to clean the top of the cylinder to access the holes for the spanner wrenches On the SM2M Submersible the hydrophone cage must be removed to allow the spanner wrench to interface with the top cap side holes Remove the cable tie around the hydrophone cage and pull the four cage legs from the top cap holes to fully remove the cage This is not necessary nor is it possible to ...

Page 27: ...ll cleaned again particularly where the O rings will contact the housing The O rings themselves should be cleaned and then inspected for any damage it is best to be on the safe side and replace them when in question The desiccant pack is not reusable and should be replaced for every deployment Give the entire housing an inspection to make sure there is no damage to the housing the attachment point...

Page 28: ... on one end for ease of travel and two latches which can accept locks for security An accessory compartment allows storage of the spanner wrenches O rings lubricant desiccant and other needed supplies The SM2M should have the hydrophone cage installed when transported in the case as shown in Figure 10 This assures a tight fit and protection from impact ...

Page 29: ...g fully populated with batteries Buoyancy salt water 12 0 lb 5 5kg with no batteries 3 0 lb 1 5 kg fully populated with batteries Rated Depth 500ft 150 m SM2M Deep Water Height 58 3 in 148 cm Including bottom mounting bracket and hydrophone cage Diameter 6 5 in 16 5 cm Mounting Bracket Slots 1 5 in 3 8 cm high 3 0 in 7 6 cm wide Standard Hydrophone 2 50 in 6 4 cm length 0 75 in 1 9 cm diameter Wei...

Page 30: ...c Upgrade Storage Media Up to four 32GB SDHC or up to four 128GB SDCX Submersible Battery Capacity Up to 32 alkaline LSD NiMH or lithium manganese cells Deep Water Battery Capacity Up to 64 alkaline LSD NiMH or lithium manganese cells N Note Full specifications for the SM2 Platform can be found in the SM2 Platform User Manual ...

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Page 32: ...Wildlife Acoustics Inc 970 Sudbury Road Concord MA 01742 4939 USA www wildlifeacoustics com 1 978 369 5225 2013 Wildlife Acoustics Inc ...

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