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Combustex BMS-2000 [5.03] Operations Manual -
1. INTRODUCTION
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1.5 FEATURES
Automatic Sequencing Features
• LCD backlight, which can be set to ON, OFF, AUTO (with photocell) or TIMED.
• LCD heater, which automatically turns on at -10°C (14°F) to maintain display stability.
• Available computer interface via RS232 or RS485 Modbus protocol.
• Input filtering to help alleviate noisy signals and signal spikes.
• Capable of driving latching solenoids (separate latch and unlatch outputs).
• Single or dual burner control (selectable in series or parallel).
• Auto relight sequence can be de-selected or selected with up to three relight attempts after loss of
flame.
• Configurable pre- and post-purge times and auxiliary blower with confirmation.
• Configurable flame sensor options.
• Ignition output signal can be configured as steady or pulsed.
• Wide variety of configurable safety interlock devices (factory set to standard settings).
• Remote start / stop is configurable.
• Auto startup after power failure is configurable.
• Intermittent pilot or standing pilot is configurable.
• Remote indication of temperatures via 4-20 mA output.
• Remote set point of bath available via 4-20 mA input.
• Configuration is password protected and stored in non-volatile memory.
Shutdown Annunciation Features
• A first out annunciation is built in with direct readout of the shutdown conditions. Each shutdown
condition is marked with its chronological incoming position. The operator must acknowledge
each shutdown condition and the condition must be cleared before startup can be initiated.
1.4 TEMPERATURE CONTROL
The BMS-2000 can be configured to perform bath temperature control by a Proportional or ON/OFF
Control output.
Proportional Control:
One 4-20mA output will be used. Set point and PID parameters are configurable via the BMS-2000
keypad.
ON/OFF Control:
The main #1 (and main #2, if applicable) burner will be cycled on and off to maintain set point. The
ON/OFF dead band and set point is adjustable via the BMS-2000 keypad.
