Multi Channel Hydrophone Amplifiers

This page covers 3 different multi channel hydrophone amplifiers. 1 channel hydrophone amplifiers are covered on a separate page:
 1 channel hydrophone amp

Our Hydrophone amplifiers are for professional use in underwater acoustics with high performance and quality. We have several models with different features and sensitivity. The more sensitivity the more the cost. Define your purpose to determine which model is best for your project.

Overview multi-channel hydrophone amplifiers

A1102 – 2 Channel Hydrophone Amplifier

Description
• The unit will handle the frequency range from 1Hz to 1MHz
• Intended for use in the field and under harsh climatic conditions
• All Filters and Gain controls directly accesible on the front panel
• High quality Lemo input connector supplies +/-12 volt output for external amplifiers
• BNC connectors in parallel on both channels for mesuring purpose
• High impedance Voltage Inputs handle all signals sources inclusive piezoelectric transducers
• Build in charger will operate on anything from 10 to 30volt AC or DC
• BNC outputs and the control lamps for the build in charger
• Batteries and Charger well packed in bottom, amplifier Circuits are placed in the top cover
• Each channel may be switched on individually in order to save current consumption and to obtain long operation time
• measuresments: 140x140x100 mm. Weight is appr. 2kg.

Price
A1102. 2 Ch. Hydrophone Amp. Price. € 2200/pc

A1105 Hydrophone amplifier, 5 channels

5 Channel Hydrophone Amplifier with high pass filter, Low noise / High Gain in a watertight suitcase.

Description
• Hydrophone Voltage Amplifier with 5 individual channels
• Intended for use in the field and under harsh climatic conditions
• Highpass filter and Gain settings may be operated directly on the frontpanel
• high impedance Hydrophone amplifier with filters and buildin batteries
• Extremely low noise. Very high input impedance
• Wide frequency bandwidth
• Includes Preamplifier, High Pass filter and Gain controls
• BNC connectors In and Out
• Not water or splash proof
• Intended for use in laboratory invironments and protected areas
• All channels may be switched on/off individually in order to save current and obtain long operation time
• Internal powered with 2 pcs.12volt lead-acid batteries
• low current consumption Maximum operation time is 10 to 24 hours on a set of full charged batteris
• in a watertight suitcase (PeliCase1200)

User instructions and technical data for amplifier A1105
• ON/OFF switch. Each channel may be switched ON/OFF individually
• Current consumption is 15mAmp. pr. channel in use
• No current is consumed when switched to OFF position
• Batteries contains 1200mAmp/hours in total giving more than 16 hours of operationtime pr. recharging with all channels in use
• Rechargingtime is 5 hours with the supplied charger. ( 24VoltDC / 0.25Amp. )
• Batteries may be charged with or without the amplifiers in use
• Remember to switch OFF all channels when not in use.

Input amplifier gain
• Use input gain as first priority. Rel. input noise is 0.6 uVolt at 1KHz in all gain-positions

High-pass filter
• Lower frequency limit to filter off seawaves. Frequency @ / -6dB

Output amplifier gain
• Upper frequency limit is 350KHz / -6dB in all gain-positions

Input pre-amplifier Gain: Off / +10 and +20dB
• Output Gain: 0 +10 +20 +30 +40 +50dB
• Highpass Filter: 1 / 10 / 100 / 1k / 10k / 100kHz
• Filter Responses: 2.order Low Pass RC network
• Frequency Range: 1Hz to 350kHz
• Relative Input Noise: <1uVolt rms @ 1kHz (bw=500Hz…8kHz)

Price
A1105 Hydrophone amplifier 5 ch. Price. €1800/pc

B2008 Hydrophone amplifier

8 Channel Hydrophone Amplifier in a 19 inch Rack. High sensitive charge input amplifiers will handle all piezoelectric ceramics

Description B2008
• 8 Channel Hydrophone Amplifier in a 19 inch Rack High sensitive charge input amplifiers will handle all piezoelectric ceramics
• handle the entire frequency range from 1Hz to 1MHz
• Intended for use in laboratory facilities with mains power supply • Versatile filtering options and individual gain settings for all channels
• The 19inch rack includes Power Supply for all channels • Low Noise Charge Inputs will handle all passive piezoelectric transducers
• 8 hydrophone channels in a rack reduces the total cost
• All hydrophone channels are designed to be similar modules
• Versatile filtering supresses unwanted signals directly at the input terminal before they enter the amplifers input stage • In the chain filtering prevents the amplifiers from being overloaded
• Amplifier modules may be operated by means of an extenderboard
• Weight is appr. 2kg.

Price
B2008 Hydrophone amplifier 8 ch. Price.€ 2800/pc