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/FQ4510 submersible liquid-level family photo; cable and final configuration vary by order.

Best For

▶Groundwater, tanks, canals, and higher liquid columns
▶Wastewater, irrigation, fuel, biofuel, 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 max
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: IP68
EMC: Protected

Mechanical

Shock: 100 g, 11 msec, ½ sine
Vibration: 10 g 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
✓Suitable media are confirmed against the complete wetted-material set and operating conditions
✓EMI/RFI protection
✓Hazardous-area and barrier installations require project documentation review

Configure & Order

Configuration Interface

Pressure Unit

Pressure Range

Output Signal

Electrical Connection

Wetted Material

Cable Length Option

Configured Part Number

FQ4500L00020P3N1000

Request Quote for This Configuration

The configuration code is a preliminary reference. Final range and unit compatibility, wiring, documentation, and availability are confirmed in the quotation.

Full Specifications

Accuracy±0.25% BFSL max (Includes non-linearity, hysteresis, and non-repeatability)

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 max

TC Span±1.5% FS max

Overrange Protection2× rated pressure

Burst Pressure5× rated pressure or 1,250 PSI, whichever is less

Pressure Cycles>50 million full-scale cycles

Shock100 g, 11 msec, ½ sine

Vibration10 g peak, 20–2,000 Hz

Ingress ProtectionIP68

EMI/RFI ProtectionYes

TechnologySubmersible stainless steel liquid-level pressure transmitter

Output Specifications

4–20 mA (2-wire)

Excitation10–28 VDC

BandwidthDC to 250 Hz (−3 dB)

Zero Offset±1% FS max (±4% FS max for 1 PSI range)

Span Tolerance±2% FS max (±4% FS max 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 max (±4% FS max for 1 PSI range)

Span Tolerance±1.5% FS max (±4% FS max for 1 PSI range)

Output Load10 kΩ min

Reverse Polarity ProtectionYes

Applications

Liquid Level Monitoring

Submersible models cover groundwater, irrigation, wastewater canals, storage tanks, and the fuel-tank applications listed in their source sheets; low-pressure models are documented for external tank-level monitoring. Media and installation compatibility require review.

Ready to Order?

Share your pressure range, media, output, and process connection. We will help identify a suitable configuration for review and provide a quotation.

Request a Quote Need Help Selecting?