Overview & Features
HYDROPHONE H3
The H3 hydrophone was designed as a leak finding tool. It offers exceptional sensitivity in a very small size that can easily be inserted into plumbing systems. Additionally, its mechanically-balanced dual-element design minimizes acceleration noise. This helps lower handling noise and vibration-induced noise. The H3 is also used as a waterproof microphone in industrial applications where dust and coolants would make standard microphones unreliable.
The H3nP and H3nB are sold as passive hydrophones, terminated with 1/4” TS and BNC output plugs respectively. These can be useful with DAQ and test equipment or high-impedance audio preamps. H3dM and H3dX configurations include signal conditioning that is built into the hydrophone, which make them compatible with standard consumer and professional microphone circuits. They are identical, other than the output connector. The “d” in the part number designates use of our latest CS6 signal-conditioning board and offers approximately 10dB better sensitivity as compared to legacy parts made with our CS4 board (without the “d” in the part number).
The H3 hydrophone can be optionally assembled with our WT150g sliding stainless steel weight assembly for sinking the hydrophone. There are several advantages to placing the weight on the cable, rather than building it into the hydrophone. When the hydrophone is dropped, the cable flexes and deflects that impact away from the hydrophone. It also dampens vibrations in the cable that would be induced into the hydrophone signal as acceleration noise. The weight can be moved if needed to allow insertion into a pipe. These attributes are especially useful to the leak detection specialist.
H3nP and H3nB are passive devices. The standard H3 “P” configuration is terminated with a 1/4” TS plug, making it compatible with many high-impedance audio devices, such as guitar amplifiers or computer sound interfaces.
The “B” configuration is terminated with a standard male BNC connector, useful for connecting to various test and measurement equipment. Each of these require a high-impedance amplifier to maximize bandwidth and minimize noise. 50 to 60 dB of adjustable gain is useful for common audio applications.
H3dM and H3dX configurations include an impedance buffer amp that is built into the hydrophone, which make them compatible with standard consumer and professional microphone circuits.
The “M” configuration is terminated with a 3.5mm “mini” stereo (TRS) plug that is wired with the tip and ring shorted. This is compatible with nearly all consumer microphone circuits, such as those used in hand-held recorders, computer sound interfaces, and many video devices. Plug-in-power (PIP) is required and may need to be switched on in your device.
The “X” configuration is terminated with a standard (full-sized) XLR male connector. These are typically used in professional-quality mic preamps, including those built into digital recorders and PA systems. Phantom power is required and may need to be switched on in your device. Any common phantom voltage will work
Output Options:
- H3nP: 1/4" TS output for use with PA1 amplifier, any high-impedance hydrophone or instrument amp or your custom design.
- H3nB: Same as H3, but with BNC output, for use with the PA6 amplifier, typical test equipment, or your custom design.
- H3dM: Buffered output (3.5mm TRS) for use with any consumer-grade microphone preamp that offers plug-in power.
- H3dX: Same as H3m, but with XLR output, for use with professional-grade microphone preamps, phantom power required.
Custom cable lengths:
Select the custom hydrophone cable option separately from the accessories menu.
Warranty
Warranty
AFAB Enterprises, LLC is doing business
under the registered trade names of Aquarian Audio and Aquarian
Scientific, which will be abbreviated below as "Aquarian".
Aquarian General Warranty Statement:
Aquarian warrants hydrophones and other products sold under the
Aquarian Audio or Aquarian Scientific brand names from electrical
failure or defects in workmanship for a period of one year following the
date of purchase, unless otherwise specified or excluded. Warranty
claims can be made directly through Aquarian. Aquarian limits its
shipping cost liability to one half of the item value during any
warranty claim. Corroded output plugs are not covered under warranty.
Damaged cables and damage caused to hydrophones and accessories by
breach of the cable jacket is not covered under warranty. Major
corrosion resulting from electrolysis, non-neutral PH, or similar
factors under user control is not covered under warranty, nor is
degradation of rubber compounds used in the hydrophone as a result of
use in anything other than clean water or seawater, or from prolonged UV
exposure. Warranty is not transferable.
Hydrophones are
sensitive instruments. We design our products to be as rugged as
possible, but by their nature, they are likely to be damaged by rough
handling. If Aquarian recognizes signs of abuse in any warranty claim,
we will provide evidence of that abuse to the customer and require the
customer to pay costs of repair and return shipping. Evidence of abuse
may include, but is not limited to: cracked or physically-broken
sensors, abrasion or deformation of the hydrophone, arcing or burns to
sensors or preamps, torn or cut cables, unusual degree of corrosion to
metals or chemical attack to rubbers and plastics. We encourage our
customers to experiment with these hydrophones. Regardless of damage, we
do not try and profit from repairs.
Please contact Aquarian
before returning any items under warranty so that we can assist in
troubleshooting issues and avoid needless shipping expenses and delays.
Aquarian tests every product that we make to be sure that we are shipping working units. If you have a problem
immediately out of the box, please contact us for technical assistance.
Special Limitations:
Board or sensor-level components (those not fully assembled
into a finished plug-and-use product) are tested for functionality and
guaranteed to work upon delivery to the customer. Due to the variability
of customer assembly, we can not formally offer any warranty period on
these products. This exclusion is inclusive of amplifiers or signal
conditioners sold as "board only", hydrophones that do not include a
fixed cable and output plug, and any replacement part or accessory not
installed by Aquarian. If one of these components fails, regardless of
cause, Aquarian will offer discounts on replacements when possible.
Volume and replacement discounts: Aquarian sells directly to the end user worldwide. We do not at this
time have a wholesale pricing structure. However, select professional
audio equipment dealers and technical consultants are offered volume
discounts. Discounts can also be negotiated to businesses or utilities
that are using or selling the Aquarian brand for specific applications
and buying in quantity. Aquarian will also offer substantial discounts
for replacement items that can not be warranted. In any case where the
buyer is offered discounted pricing, Aquarian will not warranty shipping
costs.
Resale: Aquarian will honor the sale date to the
end user from the reseller as the beginning of the 1-year warranty
period only under the following conditions: (1) A receipt for the retail
sale is provided by the reseller or end user. (2) Retail sale is made
within one year of original shipment from Aquarian. (3) Resale
dealership is authorized by Aquarian. Warranty claims should be
initiated through the reseller. Aquarian will not pay incoming shipping
costs for warranty claims purchased through other businesses.
Multiple failures: Certain damage to hydrophones, such as from mechanical shock, excessive
static pressure, input voltage, environmental chemistry and more, is
difficult to diagnose. It is assumed that if any customer experiences
multiple product failures, there is something about their application or
use that is damaging our products. Aquarian Audio may, and typically
will, refuse any warranty claim if we have previously repaired or
replaced the same item under warranty.
Where several hydrophones
are deployed in the same application, environment, network, or as part
of a larger hardware system, Aquarian limits its warranty liability to
20% of the items originally purchased, not to exceed 25 like units.
Examples: If a customer buys ten hydrophones and we end up replacing two
of these under warranty, We will assume complications in the
application environment and will ask the user to pay for repairs on
additional breakage. If a customer buys 500 hydrophones for a specific
application, hardware system, or network, our warranty is limited only
to the first 25 units.
OEM orders: Any product made by Aquarian for exclusive
distribution under alternate brands will carry no additional warranty
unless specified by contractual agreement.
Aquarian strongly recommends that anyone considering our
hydrophones for OEM use or otherwise within part of a larger system or
network thoroughly evaluate samples for effectiveness and reliability in
the proposed application, as the above-noted special conditions apply.Used, prototype and custom builds: Aquarian
will occasionally offer used or prototype equipment for sale. Unless
sold "As Is" or otherwise defined or excluded by standard policy, items
manufactured and sold by Aquarian will be warranted for one year subject
to the following conditions: In the event of a warranty claim, Aquarian
reserves the right to, at its discretion, repair the used or prototype
item, refund a portion of the cost, or apply the sale price of that item
to the cost of a similar production item. If a refund is offered, the
value of the refund will be pro-rated based on full depreciation
throughout the warranty period. Example: Prototype hydrophone is sold
for $100 with no stated warranty conditions. Product fails three months
after the sale (9 months remaining on standard warranty) and customer
claims warranty. We would make repairs, refund 9/12ths of the purchase
price ($75) to the customer, or apply a $100 credit towards the value of
a new hydrophone. Any buyer-specified custom-made product (exclusive of
simple connector or cable length alterations) will be considered a
prototype and subject to these special conditions. Any custom-built
product, if manufactured in quantity is also subject to conditions of
"Multiple Failures" above.
Warranty applies only to Aquarian products. Though extremely unlikely that a hydrophone failure could damage
equipment to which it is connected, Aquarian limits its warranty
liability only to equipment manufactured by us.
Specified terms of sale: Any terms or conditions negotiated at the time of sale and denoted in
pre-sale correspondence or on an official quote or invoice supercedes
conditions of warranty denoted above.
See also Warranty Limitation and Out-of-Warranty Repairs on our Policies Page
Accessories sold by, but not manufactured by, Aquarian:
Aquarian does not provide any additional warranty coverage for
other brands sold. Warranty claims should be made directly though the
product's manufacturer. We will do our best to help our customers
through this process.
Out-of-warranty repairs:
We don't like it when our hydrophones break! Thus, it has been our
policy to repair out-of-warranty items at discounted rates. Aquarian
Audio currently charges a minimum service fee of $35.00. Most repairs
can be done for this minimum fee. Otherwise, if a customer's hydrophone
has no obvious signs of misuse, and is less than five years old, we
charge only the cost of parts plus return shipping for items that are
currently in production. We will offer comparable replacements at
prorated discounts for obsolete items--50% in the first year out of
warranty, 40% the second year, and so on. We will offer this same
discount for replacement of defective current-production items upon
agreement only. Also, upon agreement, we will offer expedited
replacements by selling new hydrophones at full cost, then reimbursing
the customer for the discounted amount at the time the defective part is
returned (30-day limitation on return from time of replacement sale).
Please note: Terms noted above are guidelines only and not guaranteed.
We reserve the right to evaluate each out-of-warranty repair or
replacement case independently.