The NXEXP300 expands the capability of the parallel positioning system by adding valuable safety-rated digital inputs, sequence draft control, boiler water level control and total dissolved solids (TDS) surface and bottom blowdown control. The small (5” L x 8.5” W x 3.75H) footprint, adjustable voltage (120/230, 50/60 hz.) and simplified wiring provide easy retrofit to existing Fireye systems.
Benefits:
Boiler Water Level | One, two or three-element boiler water level control via 4-20mA inputs from field devices. Feed pump VFD and pump sequencing is also included. |
Sequence Draft Control | Built-in sequence draft control controls the boiler outlet damper through pre-purge, light off and operation reducing standby and operating losses. |
Total Dissolved Solids | Industry-standard TDS probe provides the option to control surface blowdown based on TDS levels set by operators. |
Flexibility | Utilize proven Fireye CANbus servomotors or industrial 4-20mA current or I/P feedwater valves. |
Wiring | International voltage setting and simple four-wire CANbus interconnections make wiring a snap. Safety relay contacts can be easily inserted into the existing control wiring. |
Reliable Operation | Proven hardware with more than five years of in-field service has been reconfigured to provide these additional features. |
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