Borehole Submersible Level Transmitter


The Tek-Sub 4800C Borehole Submersible Level Transmitter is only 19mm in diameter making it ideal for narrow conduit installations. The piezoresistive sensor is placed in a slim outer body that fits easily into boreholes, wells and slender pipes.  Rugged stainless steel body ensures that the transmitter serves seamlessly well, even in the most severe application conditions. The Tek-Sub 4800C also provides a diaphragm protection cap, customizable cable lengths and a vent tube for atmospheric pressure compensation. No maintenance, high accuracy, and long-term stability make it a perfect choice for narrow conduit applications.

The Tek-Sub 4800C is supplied with a DC 12 – 36 V power supply and provides an output signal of 4 – 20 mA, 0.5-4.5 DC or RS-485.

  • Narrow design for confined area
  • Corrosion-proof and moisture protected sensor body
  • Reliable level measurements in hazardous applications
  • Temperature Compensated
  • Cable lengths up to 150’ for installation in deep boreholes
  • Measuring pressure ranges from 10 psig to 50 psig
  • Accuracy: ±0.25% F.S .
Pressure Range 10 psig to 50 psig (7 mH2O to 35 mH2O), Optional ranges available
Pressure Type Gauge (vented)
Over Pressure 150% Of Span
Accuracy 0.25% FS
Temperature Coeffitient-Zero ±0.75% FS (typ.), ±1.5% FS (max.) overcompensated temperature range
Temperature Coeffitient-Span ±0.75% FS (typ.), ±1.5% FS (max.) overcompensated temperature range
Long Term Stability ±0.2% FS/year (typ.), ±0.3% FS/year (max.)
Output Signal 4-20 mA, RS-485, 0.5-4.5 VDC
Power Supply (Vs) 12 to 36 VDC
Load Resistance (RL) For current output: RL<(Vs-12)/0.02Ω
For voltage output: RL>10 kΩ
Vibration 10g-force (20-2000 Hz)
Shock 100g-force (10 ms)
Cycles 10×10⁶ cycles
Insulation Resistance 100 MΩ/50 VDC
Compensated Temperature Range 32 °F to 140 °F (0 °C to 60 °C)
Operating temperature range 32 °F to 160 °F (0 °C to 70 °C)
Storage Temperature Range -40 °F to 257 °F (-40 °C to 125 °C)
Housing 304 SS
Cable PTFE or Polyurethane
Diaphragm 316L SS
Seal Ring Viton
Oil Filling Silicone oil
Net Weight 0.49 lb (225 g)

water industry

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