Honeywell 900ES1-0100

Description

Technical Specifications:

• Part Number: 900ES1-0100
• Pressure Range: 0 – 100 PSI (0 – 6.9 bar) gauge
• Output Signal: 4–20 mA, 2-wire loop-powered
• Accuracy: ±0.25% of full scale (±0.25 PSI at 100 PSI)
• Supply Voltage: 12 – 36 VDC
• Operating Temperature: -40°C to +85°C (-40°F to +185°F)
• Process Connection: 1/2″ NPT male (bottom or back)
• Wetted Materials: 316L Stainless Steel diaphragm, Hastelloy C-276 internals
• Electrical Connection: 1/2″ NPT conduit entry with cable gland
• Enclosure Rating: NEMA 4X / IP66
• Response Time: < 10 ms (90% step response)
• Overpressure Rating: 150% of full scale (150 PSI)
• Burst Pressure: 300% of full scale (300 PSI)

Functional Features:

• Two-wire 4–20 mA output eliminates need for separate power supply
• Zero and span adjustable via external push buttons or HART
• 316L stainless steel diaphragm resists corrosion
• Reverse polarity and overvoltage protection

Performance Parameters:

• Zero Offset: ±1% of URL
• Span Offset: ±1% of URL
• Thermal Effect: ±0.02% of URL per °C
• Long-Term Stability: ±0.1% of URL per year
• EMC Compliance: EN 61326-1, IEC 61000-6-2

Structural Features:

• Compact cylindrical body: 140 mm height × 50 mm diameter
• 1/2″ NPT process connection (bottom-mounted)
• Cable gland: 1/2″ NPT with PG9 thread
• Two push buttons on top for zero/span calibration

Working Principle:
Applied pressure deflects the 316L stainless steel diaphragm. A piezoresistive Wheatstone bridge on the diaphragm converts the mechanical strain into a proportional milliamp signal. The onboard electronics condition and linearize the signal to a 4–20 mA output.

Key Advantages:

• High accuracy (±0.25% FS) for general-purpose applications
• NEMA 4X / IP66 rating for outdoor and washdown use
• Two-wire loop power simplifies wiring
• 316L wetted parts provide excellent chemical resistance

Applicable Industries: HVAC, building automation, water/wastewater, compressed air systems, general process control

Installation Requirements:

• Mount with process connection pointing downward for liquid service
• Use shielded twisted-pair cable (22–16 AWG)
• Loop resistance must not exceed 600 Ω at 24 VDC
• Torque process connection to 25 N·m

Usage Notes:

• Zero calibration required after installation
• Do not exceed 150 PSI process pressure
• Verify loop power supply provides minimum 12 VDC at 20 mA
• Calibrate annually to maintain ±0.25% accuracy