Tracer 1000™ LTT1 (up to 65ft), Flocorp-Guided Wave Radar Level Transmitter

Tracer 1000™ LTT1 Guided Wave Radar Level Transmitter (up to 65ft) 

Tracer 1000™ LTT1 Guided Wave Radar Level Transmitter (up to 65ft)

Featuring TDR (Time Domain Reflectometry) technology, the Tracer 1000™ provides continuous level measurement and point level detection in liquids and solids, with analog and switching output. This innovative device has almost no installation restrictions - it can be mounted in small tanks, tall and narrow nozzles and it measures precisely even with difficult tank geometries or close to interfering structures. Factory settings may be configured via the HART® Communication protocol. Tracer 1000 is ideal for various types of processing and storage applications and has an exceptional performance in liquids with low reflectivity such as oils and hydrocarbons.

Features and benefits

  • Revolutionary TDR Technology
  • Precise continuous level measurement and reliable point level detection combined in one device
  • Highly robust measurement due to 4-wire design and innovative signal analysis and disturbance signal suppression
  • Fully modular probe design - Simple to install
  • Features HART® Communication protocol
  • No Dead Band (for coaxial probe option)
  • Economically priced


Electrical Specifications 


Measuring Range [M]



Up to 780” depending on probe type



Output Functions

The Tracer 1000 is an active, single ended, non-isolated, 3 or 4 wire analog output transmitter. 



Analog Output


Current output 4-20mA: The span between the lower range value [4mA] and the upper range value [20mA]

is equal to 0-100% of the continuous level measurement reading as a factory default. Output can be inverted.




Switching Point [S]

Freely positionable within the measuring range [M] Hysteresis can be set by defining seperate upper and lower thresholds; if those are set at the same position, the minimum hysteresis of .11” applies 
Application Specifications 




Total Load Resistance

< 500Ω: HART resistor approx. 250Ω

+ load resistance approx. 250Ω if the current output is connected to a device with an inner resistance of approx. 250Ω, then there is no additional external HART resistor necessary. In that case, the HART modem is connected in parallel to the current output wires.

Dielectric Constant [ɛr]Wire & Cable Probe: Configurable Coaxial Probe: 0 
ConductivityNo restrictions 
DensityNo restrictions 
Standard Application Temp.F: -40º to 410º C: -40 to 150º 
Lower Range Value4.0mA (span 0%) Optional Application Temp.F: -320º to 500º C: -195 to 260º 
Upper Range Span20.0mA (span 100%) 
Ambient TemperatureF: -13º to 176º C: -25º to 80º 
Response Time0.5s (default), 2s 5s (selectable) 
Temperature Drift

Less than .0078 in/ºF change in ambient


 Application Pressure-14.50 PSI to 580 PSI 
Switch OutputDC Switch, PNP, Active, Max. Load 200 mA Current. Velocity of Level Change


< 3.2 fps

Supply Voltage12-30VDC (reverse-polarity protected) Mechanical Specifications 
Current Consumption


< 50mA at 24 VDC (no burden)

 Wetted Materials1.4404 / 316L and PEEK, PTFE 


Enclosure Material

Aluminum alloy EN AC-AISi9Cu3 (DIN EN 1706), Epoxy Spray (~70µm) 
Start-Up Time< 6s 


Cable Terminals

Screwless, cage clamp terminal block for stranded and solid wires AWG 22-14. 
Enclosure Rating

Standard: NEMA 6 (IP68)

Explosion Proof Option: ATEX NEMA 7

Measurement Specifications 


Cable Glands/Screw Plugs

1/2” NPT (2) or

Cable Glands (2) or

1/2” NPT (1) & Cable Gland (1) or M20 x 1.5 (2) or

M20 X 1.5 (1) & Cable Gland (1)

Accuracy± 0.12” or 0.03% of measured distance, whichever is greatest 
Repeatability< .08” 
Resolution< .04” 
Connection Thread3/4” NPT (US) or 3/4” G (Metric) 


Probe Type


316 SS Rod: 1/4” Dia. (Coated Rod; 3/8” Dia.) 316 SS Coaxial: 3/8” Dia.

Wire Cable: 1/2” Dia.

Weight (Less Probe)1.99 lbs. (903.8 g) 




FM: Class I Groups A,B,C,D

Class II Groups E,F,G; Class III; Type 4X Class I, Div. I, AEx D IIC; IP66

Class I, Div. I, Ex d II C




Probe Length [L]

316 SS Rod: 2.41” - 120”

316 SS Coaxial: 0” - 120”

Wire Cable: 2.41” - 480”

(Length must be specified when ordering - The reference point is always the sealing surface of the connection thread - See dimensional drawings)



Specifications are subject to change without notice.            

Top Dead Band

0” Coaxial Probe

2.41” Rod or Wire Probe


Download Datasheet: Tracer 1000™ LTT1 (up to 65ft), Flocorp- Guided Wave Radar Level Transmitter


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