Description
Honeywell R7847A1025 Rectification Flame Amplifier for 7800 Series, 0.8/1.0 sec FFRT, No Self-Check, Green
Overview
The Honeywell R7847A1025 is a solid-state, plug-in rectification flame amplifier designed for use with 7800 Series relay modules. It provides fast, reliable flame detection without self-check functionality, making it ideal for systems where external testing is preferred.
Key Features
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Fast Flame Failure Response: Selectable 0.8 or 1.0-second flame failure response time for rapid detection and system safety.
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Reliable Signal Monitoring: Measures flame signal voltage from 0.0 to 5.0 Vdc for precise flame detection and service diagnostics.
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Easy Plug-In Installation: Connects securely to 7800 Series relay modules via a keyed PCB edge connector for quick setup.
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Flame Signal Test Jacks: Allows direct voltage measurement for commissioning and troubleshooting.
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Color-Coded Label: Green color for easy identification in multi-system environments.
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Broad Sensor Compatibility: Supports gas-fired systems using rectifying flame rods, including C7004, C7005, C7007, C7008, C7009, and Q179 for impedance matching on lead runs over 50 feet.
Product Specifications
| Specification | Details |
|---|---|
| Type | Rectification Flame Amplifier |
| Flame Failure Response Time | 0.8 or 1.0 seconds (Selectable) |
| Self-Checking | None |
| Compatible Controls | Honeywell 7800 Series Relay Modules |
| Compatible Flame Sensors | C7004, C7005, C7007, C7008, C7009, Q179 |
| Flame Signal Voltage Range | 0.0 – 5.0 Vdc |
| Color | Green |
Typical Applications
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Industrial and commercial burner systems requiring rapid flame detection without self-check.
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Gas-fired burner management systems utilizing Honeywell 7800 Series relay modules.
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Systems using rectifying flame rods for flame verification, with or without impedance matching for extended lead lengths.
