HTS IFM – P531 / P532 Triple Channel UV and IR Signal Processors

Overview

The Honeywell P531 and P532 are fail-safe, self-checking triple channel UV and IR signal processors designed for industrial flame monitoring applications. These processors are capable of simultaneously monitoring up to two S55XBE and one S70X series viewing heads, providing independent flame relay and common fault relay contact outputs for each channel.

The P532 adds an integrated display, while the P532UI provides a detachable user interface for programming P531 units — reducing installed cost in multi-unit applications. The P531 series is ideally suited for tangentially fired boilers requiring two viewing heads for main burner flame and a third for side or horn igniters.

Features & Benefits

• Fail-safe, self-checking design for reliable industrial flame supervision
• Triple channel monitoring — capable of supporting up to three switched viewing heads simultaneously with independent flame relays
• AC and DC input voltage models available (P531AC, P531DC, P532AC, P532DC) for installation flexibility
• P532UI detachable user interface — one interface can be shared across multiple P531 units, reducing system cost
• Compatible with FlameTools-PC and FlameTools-HMI/U software via Modbus RS422 communication
• Automatic viewing head detection and error detection for simplified commissioning
• Automatic setup functionality including auto gain, auto sequence, and auto filter
• Ability to monitor UV and IR separately from a single S550BE viewing head
• Independent gain adjustments; multiple frequency settings supported for S552BE and S550BE heads
• Marginal alarm relays configurable to provide secondary indication when flame count drops below a set value
• Each viewing head can be associated with two sets of configurable files (primary or alternate)
• Seven front panel LED status indicators for at-a-glance system status
• Viewing head temperature indication supported (except with S70X)

Technical Specifications

• Channels: 3 (supports up to two S55XBE series and one S70X series viewing heads)
• Input voltage: AC (P531AC, P532AC) or DC (P531DC, P532DC)
• Communication: Modbus RS422
• Software support: FlameTools-PC (64 loops), FlameTools-HMI/U (32 loops)
• Outputs: Independent flame relay per channel, common fault relay contacts
• Status indicators: Seven front panel LEDs
• Programming interface: P532UI detachable keypad, FlameTools-PC software, or PDA with optional interface cable
• Viewing head compatibility: S550BE, S552BE, S55XBE series, S70X series

Applications

• Tangentially fired boilers requiring simultaneous monitoring of main burner and igniter flames
• Industrial combustion systems requiring multi-head UV and IR flame supervision
• Burner management systems requiring independent per-channel flame relay outputs
• Multi-burner installations utilizing FlameTools-PC or FlameTools-HMI/U SCADA integration
• Applications requiring separate UV and IR monitoring from a single S550BE viewing head

Models / Configurations

• P531AC – AC input, triple channel signal processor with base and terminal block; no integrated display
• P531DC – DC input, triple channel signal processor with base and terminal block; no integrated display
• P532AC – AC input, triple channel signal processor with base, terminal block, and integrated display
• P532DC – DC input, triple channel signal processor with base, terminal block, and integrated display
• P532UI – Detachable programming user interface for use with P531 signal processors; enables shared programming interface across multiple units

P531 / P532 Accessories

• S550BE – UV/IR viewing head compatible with P531/P532; supports separate UV and IR monitoring from a single head
• S552BE – UV/IR viewing head compatible with P531/P532; supports multiple frequency settings
• S70X Series – Viewing head compatible for side or horn igniter monitoring on P531/P532 systems
• FlameTools-PC – PC software for programming, diagnostics, and monitoring via Modbus RS422; supports up to 64 loops
• FlameTools-HMI/U – HMI interface software for P531/P532 systems; supports up to 32 loops

Documentation