Microprocessor-Based Safety System for Single-Burner Applications
The Honeywell RM7838C1004 burner control module offers a microprocessor-based solution for industrial, semi-automatically fired single-burner applications using gas, oil, coal, or combination fuels . Its integrated system provides essential functions including purge cycles, pilot startup, flame supervision, and comprehensive system diagnostics . Unlike conventional controls, it delivers enhanced safety, functional capability, and system status indication, making it suitable for demanding process environments .
This module operates on a 120V AC power supply at 50/60 Hz, with a maximum power dissipation of 10W . It accommodates a total connected load of up to 2000 VA . The RM7838C1004 features a selectable pilot flame establishing period (PFEP) of 4 or 10 seconds, configurable via jumper JR1 . Its main flame establishing period (MFEP) runs for 15 seconds . The module also provides the option for intermittent or interrupted pilot operation through jumper JR2 .
The module’s nonvolatile memory retains fault history and lockout status even after a power loss . It includes five LEDs for sequence status indication and a keyboard display module for detailed system monitoring . The system supports an extensive range of compatible Honeywell flame detectors and amplifiers , with a rugged design that withstands 0.5G vibration and operates across a wide ambient temperature range of -40°F to +140°F (-40°C to +60°C) .
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Honeywell |
| Model | RM7838C1004 |
| Product Category | Burner Control Relay Module |
| Application | Industrial single-burner control (gas, oil, coal, combination) |
| Operating Voltage | 120V AC (+10/-15%), 50/60 Hz |
| Power Dissipation | 10W maximum |
| Max Connected Load | 2000 VA |
| Dimensions (W x H x D) | 127 mm x 127 mm x 133 mm (with Q7800A Subbase) |
| Weight | Approx. 0.7 kg |
| Main Flame Establishing Period (MFEP) | 15 seconds |
| Pilot Flame Establishing Period (PFEP) | Selectable 4 or 10 seconds |
| Pilot Type | Selectable intermittent or interrupted |
| Approvals | UL Listed, CSA Certified, FM Approved, SIL 3 Capable |
| Ambient Operating Temp | -40°C to +60°C |
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 85 × 65 × 30 mm |
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