Options for Depth Sounder Test Set

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BAL-550, Balanced to Unbalanced Line Converter.

BAL551B BalunThe BAL-550 connects a depth sounder with balanced lines to the DSTS-4A. Three universal binding posts accept the balanced line (two wires and a shield) from the depth sounder. The unbalanced and isolated output is a BNC connector. A large ferrite core gives the BAL-550 a usable frequency range of 10 KHZ to 1 MHZ. If you are testing larger sounders, a BAL-550 makes the hook-up easy and foolproof. The BAL-550 rejects noise pickup and properly loads the depth sounder's transmitter. Receiver sensitivity and output voltage measurements are more accurate using the BAL-550.
  • Maximum input voltage:2500 volts peak-to-peak maximum.
  • Frequency range1:20 - 700 KHZ ± 1dB. Usable from 10 KHZ to 1 MHZ, at reduced power
  • Input connectors:Universal binding posts for shield and balanced line. Standard BNC output.
  • Construction: Cast aluminum case with baked epoxy finish.
  • Size and weight 4.5 x 3.5 x 1.5 inches (11 x 9 x 3.5 cm). 1 lb (.45 Kg)
1 Measured using 600W load and source impedance. Flatness over 10 kHz-1 MHZ range is ± 2 dB.
Serial Control Options:

RS-232 Interface without Reply Level Control RS232-BI-DIR
RS-232 Interface with Reply Level Control EAB
Electronic Attenuator Upgrade for RS232-BD (DSTS-4A/2) EAB/2U
Electronic Attenuator Upgrade for RS232-BD (DSTS-4A/3) EAB/3U

Control all DSTS-4A functions such as depth, width, fish echo, frequency, etc. Reply level control option has 0.3 dB resolution and 76 dB range. Read the input pulse voltage, frequency, width, period, and DSTS modes. Commands are simple, "d1347" sets the depth to 134.7 units, "E" turns on the fish echo, "e" turns it off, "I" reads input pulse data, etc.. The serial data format is 9600,8,N,1, and cables are supplied with a DB-9 female connector for direct connection to any PC.

Please note that both the above RS-232 control options function identically with one exception:
The EAB has an electronic attenuator to control the reply echo amplitude, whereas the RS232-BI-DIR does not. Existing DSTS-4A units with RS-232 options are easily retrofitted for reply amplitude control with the EAB/2U or EAB/3U upgrade package.
Internal Rechargeable Battery Pack, BP-4A

The BP-4A will power the DSTS-4A for up to 5 hours of continuous use, and charges automatically whenever the DSTS-4A is connected to an external power source.

Wall Transformers
  • Replacement Wall Plug Transformer (110 VAC), 200-001
  • Optional 220 VAC Wall Plug Transformer, 200-002

Please E-Mail edisales@bbginc.com or telephone (757) 366-9211 (within the USA) for more information and pricing on EDI's product design services.

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EDI Electronic Devices, Inc.
1708 South Park Court, Chesapeake, VA 23320. Phone (757) 366-9211

Cat DSTSOPT 01/98

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1708 South Park Court
Chesapeake, Virginia 23320
(757) 366-9211 USA