Maera Level Transmitters (4390 Series) - Liquids level probe - Critical Applications:

Product Specifications:

Download Maera F27 (404391) Datasheet

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4390
404392

4391
404391

Description:

The Maera (4390 Series) level probes are 2-wire 4~20mA submersible transmitters used for the hydrostatic measurement of levels in liquids.
The pressure is converted into an electrical signal.
Applications include: level measurement in wells, boreholes, wastewater plant, vessels, and standing or running water.

404391 Features:

404392 Features:

  • Housing;
    • Stainless steel (404391/000): 120mm x ø41mm.
    • Plastic PTFE (404391/022): 91mm x ø50mm.
  • Protection; IP68. EN60529 to 16m.
  • Cable; FEP ø9mm.
  • Accuracy; on full scale, < 0.4% min @ 20°C.
  • Operating temp; -20~60°C.
  • Temp coefficient; ±0.2% / 10°C.
  • Output; 4~20 mA, 2 wire, loop powered.
    UT = 12...30V dc.
  • Load resistance; max. RL < (US-10V) / 0.02A.
  • 3x Overpressure - up to 40 bar.
  • Surge and Reverse polarity protection.
  • Integrated OVP (lightning) protection with
    Stainless steel version (404391/000).
  • JUMO Datasheet; 40.4391
  • Housing; 192mm x ø25mm, stainless steel.
  • Protection; IP68. EN60529 to 100m.
  • Cable; polyurethane ø9mm.
  • Accuracy; on full scale, < 0.5% min @ 20°C.
  • Operating temp; 0~50°C.
  • Temp coefficient; ±0.2% / 10°C.
  • Output; 4~20 mA, 2 wire, loop powered.
    UT = 10...30V dc.
  • Load resistance; max. RL < (US-10V) / 0.02A.
  • 3x Overpressure - up to 40 bar.
  • Surge and Reverse polarity protection.
  • Integrated OVP (lightning) protection.
  • JUMO Datasheet; 40.4392

 

Ordering Information:

Please Note: Intech Instruments Ltd are the New Zealand distributor for JUMO products.
Please contact the JUMO distributor in your country if you require sales or service support for JUMO products.

404391/000-414-5 0~1 metre H2O, with 5 metres of cable, Stainless steel.
404391/000-414-10 0~1 metre H2O, with 10 metres of cable, Stainless steel.
404391/022-414 0~1 metre H2O, with 10 metres of cable, PTFE.
404391/022-452 0~4 metres H2O, with 10 metres of cable, PTFE.
 
404392-451 0~2.5 metres H2O, with 10 metres of cable.
404392-452 0~4 metres H2O, with 10 metres of cable.
404392-453 0~6 metres H2O, with 10 metres of cable.
404392-454 0~10 metres H2O, with 15 metres of cable.
404392-456 0~25 metres H2O, with 30 metres of cable.
404392-457 0~40 metres H2O, with 50 metres of cable.
404392-458 0~60 metres H2O, with 65 metres of cable.
 
Note: Other ranges and cable lengths are available on request.
 
Common Accessories for Level Transmitters:
NAA-101 Terminal Box with filter.
Protection: IP65.
Size: 93 x 93mm.
NAA-102 Terminal Box with filter and integral OVP.
As above, with Overvoltage protection:
Voltage clipping: slow - 90 Vpp, fast - 33 Vpp.
Line resistance: 13 ohm.
Max rating: 600 W / 1ms.
NAA-209 Hanging Cable Clamp.
LPN-OVP (Rev 1) DIN Rail mount OVP unit.
For best possible protection in Lightning prone areas, we strongly recommend using OVP protection at both ends of the installation.
Our LPN-OVP overvoltage protection device is ideal for this purpose.

Terminal Box with filter
NAA-101/2
Hanging Cable Clamp
NAA-209

Note: A close proximity or direct lightning strike may compromise the OVP protection.

 

PDF ICON Older 4390 model Download:

Download 4390 Datasheet