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NanoSonde MPL4-33 (4.6 mm, 33 kHz)

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SKU: MPL4-33 Categories: , ,
  • Description
  • Additional information

NanoSonde MPL4-33 is Vesala’s new, world’s tiniest active sonde for small underground ducts. It is only 4.6 mm in diameter so it is optimal for calibrating 6 mm (inner diameter) fiber optic ducts and to locate their blockages, dents and other problems. MPL6-33 is flexible in the middle so it can navigate tight duct curves down to 170 mm radius.

MPL4-33 is intended to be used with the Vesala CL43 Compact Locator and other cable tracers and pipe locators working on the 33 kHz tracing frequency.

How to calibrate micro ducts with MPL4-33
Before jetting, a suitable size shock absorber is attached to the sonde. It will protect the sonde if it hits an obstacle. After inserting a battery sonde is jetted into the duct. If sonde gets through the duct, duct is successfully calibrated. If sonde stops in the duct, it is located above ground using a cable tracer receiver. Knowing the exact spot of a blockage considerably saves time and reduces unnecessary digging costs.

MPL4-33 technical features
MPL4-33 turns on and starts sending tracing signal when a battery is inserted and the battery cap is attached. Typical tracing distance using CL43 receiver is 2.3 m. Replaceable lithium battery enables approx. 9 hours total usage time depending on ambient temperature. MPL4-33 diameter is 4.6 mm and length with battery cap 94 mm. Mounting thread for shock absorbers is M3.5 female.

Suggested shock absorber kit to be used with MPL4-33 is IV35-48-64, which includes an absorber spring and 4.8 mm head for 6 mm ducts and 6.4 mm head for 8 mm ducts.

This Vesala product is made in Finland.
MPL4-33 construction has utility model pending.

Basic kit

  • NanoSonde MPL4-33
  • IV35-48 Shock Absorber
  • 2 pcs. 3V lithium batteries
  • Spare battery cap
  • Packing: Pocket-size plastic box
  • Quick user reference
Comparison table of Vesala sondes. Indicated range is typical tracing distance with Vesala CL43 receiver. Maximum range is longer.
Model Diameter x Length Frequency Signal Range In Free Air Range In Cast Iron Duct IP / IK Code Battery Type Battery Life 20°C Optional Battery Compartment
MPL4-33 4.6x94 mm 33 kHz Continuous 2.3 m 0 m IP67 / IK02 BR425 or CR425 9 h
MPL6-10 6.4x84 mm 10 kHz Interrupted 1.2 m 0 m IP67 / IK03 BR425 or CR425 9 h
MPL6-33 6.4x84 mm 33 kHz Continuous 2.3 m 0 m IP67 / IK03 BR425 or CR425 9 h
MPL7-10 7.5x114 mm 10 kHz Interrupted 3.3 m 0 m IP67 / IK07 BR535 or CR535 6 h MPL7-M5
MPL7-33 7.5x114 mm 33 kHz Continuous 5.1 m 0 m IP67 / IK07 BR535 or CR535 6 h MPL7-M5
MPL9-10 9.0x137 mm 10 kHz Interrupted 3.5 m 0 m IP67 / IK07 BR535 or CR535 6 h MPL9-M5
MPL9-33 9.0x137 mm 33 kHz Continuous 5.7 m 0 m IP67 / IK07 BR535 or CR535 6 h MPL9-M5
PL18-05 18x110 mm 512 Hz Continuous 5.3 m 3.5 m IP68 / IK08 LS14250 8 h PL18-FM, PL18-M10M
PL18-33 18x85 mm 33 kHz Continuous 10 m 0 m IP68 / IK08 LS14250 20 h PL18-FM, PL18-M10M
PL42-05 42x234 mm 512 Hz Continuous 13 m 8.4 m IP68 / IK08 8 x LR6 5 h
Download brochure: Sondes
Weight 0.173 kg

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