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FQ4500

FQ4500 Submersible Liquid-Level Pressure Transmitter

Submersible pressure transmitter for 20–100 PSI liquid-level measurement in tanks, canals, groundwater, wastewater, fuels, and irrigation systems.

The FQ4500 is a sealed submersible pressure transmitter for liquid-level monitoring across higher liquid columns. It is vented through the cable to correct for barometric pressure changes, and the welded stainless housing is designed for long-term operation in demanding water, fuel, wastewater, and process tank environments.

FQ4500 Submersible Liquid-Level Pressure Transmitter
Best For
  • ▶Groundwater, tanks, canals, and higher liquid columns
  • ▶Wastewater, irrigation, fuel, bio-fuel, and fertilizer tanks
  • ▶Outdoor liquid-level applications requiring a sealed submersible body
  • ▶Projects needing vented-cable barometric compensation
  • ▶Liquid-level ranges from 20 to 100 PSI

For lower liquid-level ranges from 1 to 15 PSI, review FQ4510 Low-Range Submersible Liquid-Level Pressure Transmitter.

Quick Specs

Performance

Accuracy
<±0.25% BFSL
Stability
±0.25% FS/year, typical
Pressure Cycles
>50 million full-scale cycles

Range

Min Range
0–20 PSI
Max Range
0–100 PSI
Overrange
2× rated pressure

Environmental

Operating Temp
-40 to 85°C
Protection
IP-68
EMC
Protected

Mechanical

Shock
100G, 11 msec, ½ sine
Vibration
10G peak, 20–2,000 Hz
Technology
Submersible stainless steel liquid-level pressure transmitter
Key Benefits
  • ✓Sealed submersible body for liquid-level measurement
  • ✓Vented cable compensates for barometric pressure changes
  • ✓Welded housing tested for leak protection
  • ✓High-strength stainless steel construction
  • ✓No internal O-rings
  • ✓Compatible with many water, fuel, wastewater, and tank media
  • ✓EMI/RFI protection
  • ✓Hazardous-area and barrier installations require project documentation review
Configure & Order
Configuration Interface
Pressure Range
Pressure Unit
Output Signal
Electrical Connection
Wetted Material
Cable Length Option
Configured Part Number
FQ4500L00020B3N1000
Request Quote for This Configuration

Full Specifications

Accuracy<±0.25% BFSL (<±0.5% BFSL for 0–1 PSI range)
Long Term Stability±0.25% FS/year, typical
Operating Temperature-40 to 85°C
Storage Temperature-40 to 100°C
Compensated Temperature0 to 55°C
TC Zero<±1.5% FS (<±2.5% typical for 1 PSI range)
TC Span<±1.5% FS (<±2.5% typical for 1 PSI range)
Overrange Protection2× rated pressure
Burst Pressure5× rated pressure or 1,250 PSI, whichever is less
Pressure Cycles>50 million full-scale cycles
Shock100G, 11 msec, ½ sine
Vibration10G peak, 20–2,000 Hz
Ingress ProtectionIP-68
EMC ProtectionYes (EN 61000)
TechnologySubmersible stainless steel liquid-level pressure transmitter
Output Specifications

4–20 mA (2-wire)

Excitation10–28 VDC
Impedance>10 kΩ
Current Consumption20 mA, typical
BandwidthDC to 250 Hz (−3 dB)
Zero Offset<±1% FS (<±4% for 1 PSI range)
Span Tolerance<±2% FS (<±4% for 1 PSI range)
Output Load0–800 Ω @ 10–28 VDC
Reverse Polarity ProtectionYes

1–5 VDC

Excitation10–28 VDC
Impedance<100 Ω, nominal
Current Consumption5 mA, typical
BandwidthDC to 1 kHz (−3 dB)
Noise<2 mV RMS
Zero Offset<±1% FS (<±4% for 1 PSI range)
Span Tolerance<±1.5% FS (<±4% for 1 PSI range)
Output Load10 kΩ min
Reverse Polarity ProtectionYes
Applications

Water & Process Control

Compact pressure transducers for water supply systems, fluid power, and general process control applications.

Liquid Level Monitoring

Submersible and low-pressure sensors for groundwater, irrigation, wastewater canals, storage tanks, fuels, and other liquid-level applications.

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