3300/47 Complementary Input Differential Expansion Monitor, China 3300/47 Complementary Input Differential Expansion Monitor Manufacturers, Suppliers, Factory

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	3300/47
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Product Name	3300/47 Complementary Input Differential Expansion Monitor
Function	Measures differential expansion using two proximity probes in a complementary arrangement; displays magnitude and direction on LCD; allows monitoring range up to double the linear range of a single transducer
Signal Inputs	Accepts two proximity probe transducer signals
Input Impedance	10 kΩ
Signal Scale Factor	Jumper-selectable: 100 mV/mil (4 V/mm), 20 mV/mil (0.787 V/mm), or 10 mV/mil (3.92 V/mm)
Power Consumption	Nominal 1.5 W
Signal Conditioning Accuracy	±0.33% typical, ±1% maximum at +25°C (+77°F)
Output Impedance (Voltage Outputs)	100 Ω; minimum load resistance 10 kΩ
Voltage Compliance (Current Outputs)	0 to +12 Vdc; load resistance 0–600 Ω with +4 to +20 mA option
Buffered Transducer Outputs	One coaxial connector per transducer (front) and one terminal per channel (rear); short-circuit protected
Buffered Output Impedance	100 Ω
Operating Temperature	0°C to +65°C (+32°F to +150°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Relative Humidity	Up to 95%, non-condensing
Dimension:	5.1 cm x 20.3 cm x 33.0 cm
Weight:	1.1 kg

Description

The 3300/47 Complementary Input Differential Expansion Monitor measures differential expansion on large machinery using two proximity probes in a complementary arrangement, providing one channel with a range up to double the linear range of a single transducer. The 3300/47 Complementary Input Differential Expansion Monitor accepts two transducer signals with 10 kΩ input impedance and jumper-selectable scale factors of 100 mV/mil, 20 mV/mil, or 10 mV/mil. Signal conditioning accuracy is ±0.33% typical and ±1% maximum at 25°C.

The 3300/47 Complementary Input Differential Expansion Monitor outputs voltage (0–+12 Vdc) and current (+4 to +20 mA) signals with 100 Ω impedance, and buffered outputs via front coaxial connectors and rear terminals with short-circuit protection. A non-multiplexing 83 mm vertical bargraph LCD shows both magnitude and direction of differential expansion within ±1.6% full-scale. Four digitally adjustable alarm setpoints (two over, two under) and LED indicators for OK, Alert, Danger, and Bypass allow automated monitoring. Operating temperature is 0°C to +65°C, storage -40°C to +85°C, and nominal power consumption is 1.5 W. The 3300/47 Complementary Input Differential Expansion Monitor is ideal for automated differential expansion monitoring in turbines, generators, and other large rotating machinery.

Applications

Monitor large turbine collar expansion with extended range
The 3300/47 Complementary Input Differential Expansion Monitor uses two complementary proximity probes to monitor rotor collar expansion up to 50 mm, exceeding the range of a single transducer, allowing precise automated detection of critical axial movement.

Automate alarm signaling for over/under expansion
Using four digitally adjustable alarm setpoints, the 3300/47 Complementary Input Differential Expansion Monitor outputs Alert and Danger alarms directly to PLCs or DCS systems when expansion exceeds ±1.6% of full-scale, supporting automated protective actions.

Transmit real-time expansion data to control systems
The 3300/47 Complementary Input Differential Expansion Monitor provides voltage outputs (0–+12 Vdc) and current outputs (+4 to +20 mA) with 100 Ω impedance, delivering high-accuracy data for automated monitoring and control systems.

Maintain continuous measurement with flexible probe placement
By arranging two probes complementarily, the 3300/47 Complementary Input Differential Expansion Monitor ensures one probe remains within range when the collar moves beyond the other, maintaining uninterrupted monitoring up to 50 mm.

Specifications

Display Type	Nonmultiplexing vertical bargraph LCD; 63 individual segments per channel; center scale indicates Probe Gap; shows error codes and ADJUST mode
Display Resolution	Within ±1.6% of monitor full-scale
Display Size	83 mm (3.2 in), vertical dimension
LED Indicators OK	One constant green LED per channel; OFF = NOT OK or channel bypassed; flashing 1 Hz = transducer was NOT OK but now OK; flashing 5 Hz = error codes stored
LED Indicators Alarm	Two red LEDs per channel for Alert and Danger; flashing = First Out
LED Indicators Bypass	Red LED indicates Rack/Channel Bypass status
Alarm Setpoints	Four digitally adjustable setpoints: two over and two under alarms

Competitive Advantage

Double-range monitoring with standard transducers
The 3300/47 Complementary Input Differential Expansion Monitor achieves up to 50 mm measurement using two 10 kΩ proximity probes, doubling the effective range of a single transducer without additional hardware.

High-resolution LCD for magnitude and direction
The 3300/47 Complementary Input Differential Expansion Monitor displays differential expansion magnitude and direction on an 83 mm vertical bargraph LCD with ±1.6% full-scale resolution for precise automated monitoring.

Buffered outputs for safe automation integration
Front coaxial and rear terminal buffered outputs with 100 Ω impedance on the 3300/47 Complementary Input Differential Expansion Monitor provide short-circuit protection, allowing safe connection to control and data acquisition systems.

Low-power operation for dense rack installations
With only 1.5 W nominal power consumption, the 3300/47 Complementary Input Differential Expansion Monitor can be installed in automation racks alongside multiple units without exceeding power limits, supporting continuous monitoring of large machinery.