Dart Rodding Sonde 33kHz

Standard UK Sonde Frequency

The Dart Systems Rodding Sonde is a versatile and powerful, self-contained waterproof transmitter. The Sonde can be attached to Flex Rods, Cobra Rods, Drain Rods or any movable device that can be propelled inside non-metallic pipes. Used correctly you can pinpoint the exact route of the pipe and where a blockage is underground from above ground!

The Sonde emits a strong radio signal which can be tracked above ground using an industry standard Cable Avoiding Tool (CAT) or Cable Locator which operates at the same frequency. This 33Khz frequency is the UK standard Sonde frequency for most applications.

Dart Rodding Sondes are available in 33Khz, 8Khz or 512Hz frequency.

•  33Khz unit is colour coded Orange  
•  8Khz unit is colour coded Green
•  512Hz unit is colour coded Red

Sonde Part Numbers

370-100 - 33Khz Rodding Sonde - Industry Standard UK Location Frequency

370-101 - 8Khz Rodding Sonde - Industry Standard Location Frequency when 33kHz locating is difficult

370-102 - 512Hz Rodding Sonde - Ideal for locating blockages in cast iron pipes

The Sondes are tested to withstand drops from 1 Mtr onto concrete or similar surfaces and are also pressure tested and are rated waterproof to a depth of at least 30 Meters. The M10 bolt can be used to connect the Sonde to a variety of pushrods, Cobras or Duct / Drain Rods. The bolt is fitted with a Nyloc insert designed to ensure that the Sonde will not unscrew during normal use.

Industry standard location frequency in the UK which provides a good all-round signal for underground location.
A high frequency that works well for locating to greater depths.

Transmitting Sondes enable the user to trace non-metallic sewers, drains, ducts or pipes and to locate blockages or collapses.

If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

Specification

End Fitting Male M10 Thread (with Nyloc threadlock)

Construction ABS Plastic / Stainless Steel

Location depth Up to 7 Mtr (23ft)

Weight 150g (5oz)

Signal 32.768Khz (Orange) or 8.192Khz (Green) Continuous

Battery 1 x AA Alkaline

Battery Life 100 + Hours @ 18° C

Pressure 2 bar, 20 Mtr

Dimensions 38mm Dia. x 115mm (128mm OAL)

IP Rating IP68

Temperature Range -20° C to 55° C

Approvals EN301 489 3V1.4.1

EN300 330 2V1.5.1
CE / FCC

Warranty 12 Months Full Manufacturers

Available Accessories

Part No 3-46-SA; Sonde Adapter (M5 / M10)

Part No 3-911-SA; Sonde Adapter (M10/M12)

Part No 3-9-FM10EF; Female M10 End Fitting for 9mm Cobra Rods

Part No 3-BR-SA; Drain Rod Sonde Adapter - Universal (Uni / M10)

Part No 3-BT-SA; BT Duct Rod Sonde Adapter

The Reason for different Sonde Frequencies

Pipe and soil conditions can affect the sonde signal therefore it is advised to have a set of sondes at hand so if one doesn’t work you can try the others.

If the soil is wet or the shingle/concrete packed around the pipe has an iron content it will affect the 33kHz sonde signal so for this example an 8kHz sonde would be a better sonde to use.

If the pipe is cast iron then the 512Hz sonde would be the one to use as the lower frequency will not attach itself to the cast iron pipe and blur the location signal.