Detachable Level Transmitter - Model 590

The product features 0-40" thru 835' WC, Stainless Steel Sensor, PUR Cable Standard, and Housing.

The Model 590 Detachable Level Transmitter allows for a fast sensor swap without having to remove the installed polyurethane standard cable. FEP and PVC cables are also available. Both 590/591 have the deepest level rating at 835'. Sensor head and/or cable can be ordered independently. A full range of accessories for use in level applications are available, a number of them from stock.


  • Detachable
  • All Stainless Steel construction
  • IP-68 Rated
  • RoHS Compliant
  • Low Pressure Applications

The Model 590 Detachable Level Transmitter enables a quick sensor swap without the removal of the installed cable. No special tools are needed. Just pull up the sensor, twist the sensor coupling sleeve until it is no longer engaged and then just divide the two halves.

The Model 590 is built with stainless steel housing and sensor module, with a polyurethane cable as standard. Different cable materials and o rings are offered.

Use it to measure liquid level and depth for water and waste water applications, at lift stations, rivers, holding ponds, reservoirs and dams, wells, in-ground/above ground tanks and with inventory tank gauging.

Ranges from 0-40" WC thru 15' WC have collective accuracy of +/- 0.50% FSO

Ranges more than 15' WC have combined accuracy of +/- 0.35% FSO

Viatran also offers a full range of accessories for use in level applications such as a surge protector, meters, cable hangers and weights, and junction boxes.

Replacement sensor heads and/or cables can be bought individually.


. .
Pressure Ranges 0 - 40" W.C. up to 0 - 835 Ft W.C. (Or equivalent in Meters or PSI)
Accuracy [Combined Non-Linearity (BFSL), Hysteresis & Repeatability] For ranges ≥ 15 Ft. W.C. ≤ +/-0.35% FSO
For ranges < 15 Ft. W.C. ≤ +/- 0.50% FSO
Compensated Temperature Range 32° to 158 °F (0 to 70 °C)
Operating Temperature Range -4° to 158 °F (-20 to 70 °C) Note: Medium must not freeze near sensor
Storage Temperature Range -13° to 158 °F (-25 to 70 °C)
Long Term Stability (%FSO) ≤ +/- 0.1% FSO / year At reference conditions)
Thermal Effect on Zero ≤ +/- 0.8% FSO per 100 °F
Thermal Effect on Span ≤ +/- 0.8% FSO per 100 °F



. .
Output Signal 4-20 mA
Supply Voltage 8 -32 Vdc
Power Supply Regulation < +/- 0.005% FSO per volt
Circuit Protection Reverse polarity protected, CE marked
RFI / EMI CE EMC compliant as per IEC EN 61326
Voltage Spike Protection Withstand 1000 volt spike per EN 61000
Response Time <10 mSec



. .
Pressure Connection Protective POM cap
Ingress Protection IP 68
Overpressure Limit 4x Minimum (>525 Ft. range = 3.2x)
Burst Pressure 5x Minimum (> 525 Ft. range = 4.8x)
Weight 0.9 lbs. (without cable)


Materials of Construction

. .
Housing 316L stainless steel
Sensor Diaphragm 316L stainless steel
O-ring Seals FKM (Standard) or EPDM (Optional)
Protective Cap POM (Polyoxymethylene)



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