Product Overview

The Emerson EPRO PR9376/010-011 is a non-contact Hall effect sensor for speed and proximity measurements. This sensor is designed for critical turbomachinery applications. The Emerson EPRO PR9376/010-011 works on steam, gas, and hydro turbines. It also monitors compressors, pumps, and fans. The sensor includes a 5-meter armored cable for durability. An IP67 sealing rating protects against dust and water ingress. The Emerson EPRO PR9376/010-011 weighs only 210 grams for easy mounting.

Technical Specifications

The Emerson EPRO PR9376/010-011 delivers reliable speed sensing for demanding environments. Below are its core technical parameters.

• Manufacturer: Emerson (EPRO)

• Product Line: PR9376 Series

• Part Number: PR9376/010-011

• Product Type: Hall Effect Speed/Proximity Sensor

• Measurement Type: Non-contact

• Cable Type: Armored, 5 meters

• Sealing Rating: IP67

• Sensor Material: Stainless steel

• Cable Material: PTFE

• Weight (Sensor only): 210 grams (7.4 oz)

Dynamic Performance Specifications

The Emerson EPRO PR9376/010-011 offers excellent dynamic response. Its key performance parameters include:

• Output: 1 AC cycle per revolution/gear tooth

• Rise/Fall Time: 1 µs

• Maximum Operating Frequency: 12 kHz (720,000 cpm)

• Output Voltage (12 VDC at 100 kΩ load): High >10 V / Low <1 V

The 12 kHz maximum frequency on the Emerson EPRO PR9376/010-011 handles very high-speed applications. This equals 720,000 counts per minute for extremely fast rotating machinery.

Air Gap and Target Requirements

The Emerson EPRO PR9376/010-011 requires specific air gaps for proper operation. These include:

• Air Gap for Module 1: 1 mm

• Air Gap for Module ≥2: 1.5 mm

• Trigger Mark: Limited to spur wheel, involute gearing, Module 1

• Target Material: ST37

Measuring Target Requirements:

• Target/Surface Material: Magnetic soft iron or steel (non stainless steel)

Do not use stainless steel targets with the Emerson EPRO PR9376/010-011. The sensor requires magnetic soft iron or standard steel for proper triggering.

Electrical Specifications

The Emerson EPRO PR9376/010-011 has flexible power requirements. Its electrical parameters include:

• Power Supply: 10 to 30 VDC

• Maximum Current Draw: 25 mA

• Resistance: Max. 400 Ohms

The wide 10-30 VDC range on the Emerson EPRO PR9376/010-011 works with many industrial power supplies. The low 25 mA current draw makes it suitable for battery-backed or low-power systems.

Environmental Specifications

The Emerson EPRO PR9376/010-011 operates reliably in harsh conditions. Its key environmental ratings include:

• Reference Temperature: 25°C (77°F)

• Operating Temperature Range: -25 to 100°C (-13 to 212°F)

• Storage Temperature: -40 to 100°C (-40 to 212°F)

• Sealing Rating: IP67

The IP67 rating on the Emerson EPRO PR9376/010-011 provides complete dust protection. It also withstands temporary immersion in water. The stainless steel housing resists corrosion in industrial environments.

Compliance and Certifications

The Emerson EPRO PR9376/010-011 meets multiple European directives. These include:

• CE 2014/30/EU (EN 60947-5-2) – Electromagnetic Compatibility

• 2014/35/EU – Low Voltage Directive

• 2011/65/EU (EN 63000) – RoHS Restriction of Hazardous Substances

Ordering Information Breakdown

The Emerson EPRO PR9376/010-011 part number follows a clear structure:

Applications

The Emerson EPRO PR9376/010-011 suits many critical machinery applications. These include:

• Steam turbines for speed monitoring

• Gas turbines for overspeed protection

• Hydro turbines for rotational speed measurement

• Compressors for shaft speed detection

• Pumps for RPM monitoring

• Fans for speed feedback control

Installation Guide

Installing the Emerson EPRO PR9376/010-011 requires careful attention to target materials. Follow these steps for a proper setup.

1. Power Down Equipment: Ensure the target machine is stopped and locked out.

2. Verify Target Material: Confirm the gear or wheel is magnetic soft iron or steel.

3. Set the Air Gap: Adjust the sensor to 1 mm (Module 1) or 1.5 mm (Module ≥2).

4. Secure the Sensor: Mount the Emerson EPRO PR9376/010-011 using a rigid bracket.

5. Connect Power Supply: Wire 10-30 VDC to the sensor leads.

6. Connect Output: Route the output signal to your monitoring system.

7. Test Operation: Rotate the target slowly and verify the output toggles correctly.

Always use a vibration-free mount for the Emerson EPRO PR9376/010-011. Any movement in the bracket will change the air gap and affect performance.

Package List

Your package contains the following items for the Emerson EPRO PR9376/010-011:

• 1 x Emerson EPRO PR9376/010-011 Hall effect speed sensor

• 1 x 5-meter armored PTFE cable (attached)

• 1 x installation instruction sheet

Frequently Asked Questions (FAQ)

Q1: What is the maximum operating frequency of the PR9376/010-011?
A1: The Emerson EPRO PR9376/010-011 operates up to 12 kHz (720,000 cpm). This makes it suitable for very high-speed turbomachinery applications.

Q2: What target materials work with this Hall effect sensor?
A2: The Emerson EPRO PR9376/010-011 requires magnetic soft iron or steel targets. Do not use stainless steel targets as they will not trigger the sensor correctly.

Q3: What is the IP rating of this speed sensor?
A3: The Emerson EPRO PR9376/010-011 has an IP67 sealing rating. It is completely dust-tight and withstands temporary immersion in water.

Q4: What is the recommended air gap for this proximity sensor?
A4: The Emerson EPRO PR9376/010-011 requires a 1 mm air gap for Module 1 gears. For Module 2 or larger gears, use a 1.5 mm air gap.

Q5: What is the operating temperature range of the PR9376/010-011?
A5: The Emerson EPRO PR9376/010-011 operates from -25 to 100°C (-13 to 212°F). Storage temperature ranges from -40 to 100°C (-40 to 212°F).