Product Details
The Honeywell R7849A1023, also cataloged as the R7849A1023 UV Flame Amplifier Module, operates as a dedicated hardware component for ultraviolet flame signal detection and amplification within 7800 Series burner control platforms.
Hardware Specifications
| Parameter | Specification |
| Model | R7849A1023 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.15 lbs (0.07 kg) |
| Dimensions | Standard 7800 Series plug-in module footprint |
| Operating Temp | -40 to +60 deg C (-40 to +140 deg F) |
| Power Consumption | Low-power solid-state amplifier circuit |
| Flame Detection Type | Ultraviolet (UV) |
| Flame Failure Response Time | 2.0 to 4.0 seconds |
| Compatible Flame Sensors | C7027, C7035, C7044 UV Flame Detectors |
| Test Voltage Range | 0.0 to 5.0 VDC (at front test jacks) |
| System Compatibility | 7800 Series Relay Modules (EC/RM7800) |
Galvanic Isolation and HART Protocol Interfacing
The amplifier module incorporates internal galvanic isolation barriers designed to decouple high-voltage flame detection circuitry from low-voltage microprocessors within the host 7800 Series relay module. Optical decoupling stages prevent ground loops and high-frequency electrical noise from corrupting flame signal voltage outputs. The solid-state amplifier conditions microampere-level AC signals generated by C7027/C7035/C7044 UV sensors into a normalized 0.0 to 5.0 VDC analog signal readable across front panel test points and system diagnostic buses.
Frequently Asked Questions
Q: What flame failure response time (FFRT) is configured on the R7849A1023 amplifier?
A: The R7849A1023 provides a standard flame failure response time of 2.0 to 4.0 seconds upon loss of detected ultraviolet radiation.
Q: Which Honeywell flame sensors are compatible with this amplifier?
A: The module directly interfaces with Honeywell C7027, C7035, and C7044 miniature ultraviolet flame detectors.
Field Installation Guidelines
-
Ensure main electrical power to the 7800 Series relay module base is de-energized prior to inserting or removing the amplifier module.
-
Align the edge connector pins on the back of the R7849A1023 with the designated amplifier slot on the 7800 Series relay module.
-
Press the module firmly into place until the side retaining tabs click into position.
-
Measure DC flame voltage across the front panel positive (+) and negative (-) test jacks using a high-impedance voltmeter (minimum 0.8 VDC required for stable burner operation).
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Demystifying Open Platform Communication (OPC): The Backbone of Industrial Interoperability
Interoperability remains a cornerstone requirement for modern smart factories and process automation. Open Platform Communication (OPC) bridges the gap between disparate hardware platforms, control systems, and visualization software. By establishing a universal communication standard, OPC allows field controllers, SCADA platforms, and enterprise software from different vendors to exchange real-time data seamlessly.
Understanding Siemens PLC Memory Cards: MMC, SMC, and SD Solutions in Industrial Automation
Memory management plays a pivotal role in maintaining control system reliability across modern manufacturing plants. Industrial control systems rely on specialized memory cards to store project logic, firmware updates, and retentive system data. Siemens uses several memory architectures, including Micro Memory Cards (MMC) and SIMATIC Memory Cards (SMC). Engineers must understand these hardware variations to ensure zero data loss and minimize downtime during maintenance routines.
Redefining Control Systems: The Rise of Flexible I/O Modules in Industrial Automation
Conventional input-output architectures often limit engineering agility and inflate long-term inventory costs. Today, Flexible Input/Output Modules (FIOM) are transforming how control system engineers design, commission, and maintain automation infrastructure. By allowing individual channel software configuration, FIOM technology bridges the gap between rigid hardware design and dynamic plant requirements.