4392 / 4390
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.
|4391-242-1.0||0 – 1 metre H2O, with 5 metres of cable.|
|4392-242-2.5||0 – 2.5 metres H2O, with 10 metres of cable.|
|4392-242-4.0||0 – 4 metres H2O, with 10 metres of cable.|
|4392-242-6.0||0 – 6 metres H2O, with 10 metres of cable.|
|4392-242-10||0 – 10 metres H2O, with 15 metres of cable.|
|4392-242-25||0 – 25 metres H2O, with 30 metres of cable.|
|4392-242-40||0 – 40 metres H2O, with 50 metres of cable.|
|4392-242-60||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.
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.
Note: A close proximity or direct lightning strike may compromise the OVP protection.
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.