
Description
The 3604E is Omega Engineering’s flagship industrial temperature transmitter,engineered to bridge field sensors(thermocouples,RTDs)and distributed control systems(DCS/PLCs)across manufacturing,energy,and food processing.As a critical”signal conditioner,”it converts weak,unstable temperature signals into standardized 4-20mA DC or 0-10V DC outputs—enabling precise,real-time temperature monitoring and control.
What differentiates the 3604E is its uncompromising balance of precision and ruggedness:with±0.1%full-scale accuracy,it outperforms generic transmitters(typically±0.5%)in critical processes.Its IP67-rated enclosure and-40°C to+85°C operating range withstand condensation,dust,and vibration in harsh industrial environments—eliminating the frequent replacements plaguing low-cost alternatives.Native compatibility with Allen-Bradley,Siemens,and Honeywell controllers further simplifies integration into existing automation ecosystems.
Application Scenarios
A 50,000-ton-per-year food processing plant in Wisconsin faced persistent temperature control issues in its pasteurization tanks:generic transmitters suffered from signal drift,causing 2-3°C temperature deviations.This led to 5%of milk batches being over-pasteurized(wasting 2,500 gallons monthly)and 3%under-pasteurized(risking regulatory non-compliance).
After upgrading to 3604E transmitters,the plant achieved stable temperature monitoring:the transmitters’±0.1%accuracy reduced deviations to<0.2°C,and their EMI shielding eliminated interference from nearby pumps.Paired with Allen-Bradley CompactLogix PLCs,the 3604E enabled closed-loop control of heating elements,cutting over-pasteurization waste by 90%and ensuring 100%regulatory compliance.The plant saved
45,000annuallyinproductlossandavoided
15,000 in potential fines.
Parameter
Main Parameters
Value/Description
Product Model
3604E
Manufacturer
Omega Engineering
Product Category
Industrial temperature transmitter
Input Type
Thermocouple(J,K,T,E,R,S,B,N)or RTD(PT100,PT1000)
Output Signal
4-20mA DC(2-wire loop-powered)or 0-10V DC(4-wire)
Measurement Accuracy
±0.1%of full scale(at 25°C±5°C)
Temperature Range
-200°C to+1800°C(depends on input sensor)
Operating Temperature
-40°C to+85°C(ambient)
Power Requirement
12-36V DC(loop-powered for 4-20mA output)
Physical Dimensions
110mm(L)×75mm(W)×35mm(H)
Mounting Type
DIN rail mount(35mm standard)or panel mount
Enclosure Rating
IP67(front panel);NEMA 4X
Protection Features
Reverse polarity protection,overvoltage protection(up to 42V DC)
Calibration
User-configurable via DIP switches or Omega software
Compatibility
Allen-Bradley CompactLogix,Siemens S7-1200,Honeywell Experion PKS
Certifications
UL 61010-1,CE,ATEX II 2G Ex d IIB T6 Ga,IECEx
Technical Principles and Innovative Values
Innovation 1:Dual-Mode Signal Conditioning
The 3604E uses a 24-bit analog-to-digital converter(ADC)paired with adaptive filtering technology,which automatically adjusts signal sampling rates based on environmental noise.Unlike generic transmitters with fixed filtering(causing either lag or instability),it achieves<10ms response time while maintaining±0.1%accuracy.A petrochemical plant test showed the 3604E stabilized temperature readings during equipment startups—noise-related errors dropped from 1.2°C to 0.05°C.
Innovation 2:Ruggedized Environmental Engineering
Omega optimized the 3604E for extreme conditions:its IP67 enclosure resists water submersion(1 meter for 30 minutes)and dust ingress,while the circuit board uses conformal coating to prevent corrosion from humidity or chemicals.In a wastewater treatment plant,3604E units operated continuously for 24 months in 95%humidity environments—outlasting generic transmitters that failed after 6 months.The transmitter also tolerates vibration up to 5g(10-500Hz),ideal for manufacturing lines with heavy machinery.
Innovation 3:Plug-and-Play Compatibility
The 3604E supports HART 7 communication protocol,enabling auto-detection by modern DCS/PLC systems.Users can configure sensor type,temperature range,and output signal via DIP switches(no software required)or remotely via Omega’s TruCal software.A pharmaceutical plant reduced transmitter setup time from 30 minutes to 5 minutes per unit,and remote calibration cut maintenance downtime by 40%.
Application Cases and Industry Value
Case 1:Power Plant Boiler Monitoring(China)
A coal-fired power plant integrated 3604E transmitters into its boiler tube temperature monitoring system.Previously,legacy transmitters failed in high-vibration,high-temperature(60°C ambient)boiler rooms,causing unplanned shutdowns every 3 months.The 3604E’s rugged design and wide temperature range eliminated failures,and its 4-20mA output enabled real-time alerts via the plant’s Siemens S7-400 PLC.Shutdown frequency dropped to zero,saving$200,000 annually in lost generation.
Case 2:Semiconductor Manufacturing(Singapore)
A semiconductor fab used 3604E transmitters to monitor wafer processing temperatures(critical for yield).The transmitters’±0.1%accuracy ensured temperature uniformity across 20 processing chambers,reducing wafer defects from 3.2%to 0.8%.Integration with the fab’s Allen-Bradley ControlLogix PLC enabled automated recipe adjustments,and HART communication allowed remote diagnostics—maintenance time per chamber dropped from 2 hours to 15 minutes.Annual yield improvements translated to$1.2 million in additional revenue.
Related Product Combination Solutions
Omega PT100 RTD Sensor:High-precision RTD paired with 3604E–ideal for-200°C to+850°C temperature measurements in pharmaceutical labs.
Allen-Bradley 1756-IF8H Module:8-channel analog input module that receives 3604E’s 4-20mA signal–integrates with CompactLogix controllers for centralized monitoring.
Omega TruCal Software:PC-based tool for remote calibration and configuration of 3604E–eliminates on-site setup for distributed transmitters.
Siemens S7-1200 PLC:Compact controller that processes 3604E data–executes control logic for food processing lines.
Phoenix Contact QUINT-PS/3AC/24DC/20 Power Supply:24V DC power supply for 3604E(4-wire version)–provides stable power in industrial environments.
Omega TC-K-SS Thermocouple:K-type thermocouple compatible with 3604E–suitable for high-temperature applications(up to 1260°C)in metalworking.
Honeywell Experion HMIWeb:HMI that displays real-time temperature data from 3604E–enables operators to set alerts and monitor trends.
Installation,Maintenance,and Full-Cycle Support
Installation:Mount the 3604E on a 35mm DIN rail(or panel mount using optional brackets)within 5 meters of the temperature sensor to minimize signal loss.Connect the sensor to the input terminals(color-coded for thermocouple/RTD)and the output to the PLC/DCS analog input module.For loop-powered 4-20mA output,wire directly to the 12-36V DC loop—no external power supply needed.The transmitter auto-powers on and stabilizes within 2 seconds.
Maintenance:Conduct quarterly visual inspections to check for loose wiring or corrosion(clean with a dry cloth if needed).The 3604E’s self-diagnostic feature detects sensor faults(e.g.,open circuit)and outputs a 3.6mA or 21mA signal to alert operators.Calibration is recommended annually(or bi-annually for non-critical applications)using Omega’s calibration kits.Omega offers a 3-year standard warranty,with extended coverage up to 5 years for hazardous-area models.
Support:Omega’s global technical team provides 24/7 assistance for 3604E:Engineers offer remote troubleshooting via phone or email,and calibration services are available in 20+countries.Spare parts(e.g.,terminal blocks,enclosure gaskets)ship within 48 hours to major regions.Online training courses cover sensor pairing,configuration,and fault handling—ensuring your team maximizes the transmitter’s performance.
Contact our team to design a tailored temperature monitoring solution for your operations—whether optimizing power plant efficiency,ensuring food safety compliance,or improving semiconductor yield,the 3604E delivers the precision and reliability your industrial systems demand.
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