700 SERIES BMS II BUBBLER MONITORING SYSTEM

Transcription

1 1 700 SERIES BMS II BUBBLER MONITORING SYSTEM VISIT OUR WEBSITE AT SIGMACONTROLS.COM 700 SERIES BMS II MANUAL

2 2 TABLE OF CONTENTS INTRODUCTION 3 Physical Specifications WIRING 5 PROGRAMMING & SETUP.. 6 WARRANTY.... 7

3 INTRODUCTION 3 The Bubbler Monitor is a state of the art microprocessor based instrument designed to monitor and control duplex air compressors in a level bubbler system. Duplex alternation of compressors assures even wear. Monitoring of individual compressor discharge pressure allows for a failed compressor to be removed from service and the unused compressor to be brought on-line ensuring a consistent air supply. A differential switch across the variable area flow meter checks for an unobstructed dip tube. In the event of a dip tube blockage, the differential switch activates a flow fail LED and alarm output. LED indicators provide status of inputs and outputs. Compressor alternation is automatic on user-selected cycle or on demand via push button. SPECIFICATIONS Σ Power Supply: 24VDC + 4VA Σ Relay Output: 120VAC (4) 30VDC Σ Input Switch: Open Circuit 30VDC Σ Temperature Operating: -20 C to +60 C Storage: -40 C to 85 C Σ Relay Life: Electrical 10o0K Cycles Mechanical 10,000K Cycles Σ Terminations: Screw Terminal Barrier Strip Σ LED Indicators: Status (Green) Flow OK 2 Comp 1 Run 3 Comp 2 Run System OK Alarm (Red) 1 Supply Fail 2 Flow Fail 3 Compressor 1 Alarm 4 Compressor 2 Alarm

4 4 WIRING DETAIL! CAUTION All electrical wiring must be in accordance with all local, state and national codes that apply. Do no exceed the rated current of the D.C. power supply (1.5A) or Form C relay outputs (5A/240VAC resistive).! Hazardous voltages are present within the enclosure. Installation or service should only be carried out by trained personnel. WARNING

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6 PROGRAMMING & SETUP The BMS contains 16 LED indicators and 3 function keys. Only minimal programming is required for operation. 6 A) Alternation the unit will automatically alternate the compressor permissive relays as follows: 1) Hold the RESET button down for 3 seconds to force air compressor alternation cycle. 2) Hold the TEST button down for 3 seconds until the relays energize. All LED s will be lit at this time. The program LED will be illuminated and one of the alternation line indicators will be lit. Press the ACK button to scroll from A to C lights under the program light. With light A illuminated, compressors will alternate every 240 minutes, Light B, selected by pressing the ACK button allows selection of B and C. B position provides a 480 minute alternation cycle and C position provides a 720 minute alternation cycle. Press RESET to save the change and exit program menu. OPERATION Three pressure ports are provided on the unit as follows: Pressure port 1 is supply pressure from compressor 1 Pressure port 2 is supply pressure from compressor 2 Pressure port 3 is output pressure to the dip tube and is varied by the flow meter valve. Each air supply input is monitored by a pressure switch to confirm air supply. The flow output is monitored by a differential pressure switch to confirm air flow. Should the air flow stop due to a plugged dip tube the differential switch will cause the flow fail LED to illuminate. Any alarm occurrence is indicated by the specific status light changing from green to red. Alarms can be reset (after the causal condition has been cleared) by pressing the reset button. OUTPUTS Four relays are provided rated at 120oVAC. Relay function as follows: Relay 1: Compressor 1 permissive Relay 2: Compressor 2 permissive Relay 3: Warn Output

7 7 WARRANTY All Sigma Controls, Inc. products are warranted to be free from defective materials and workmanship for one (1) year from date of shipment. Sigma reserves the right to repair or replace at its option any product found to be defective. In no event shall Sigma Controls, Inc. be liable for any consequential, incidental, or special damages and the limit of its liability shall not exceed the purchase price of the supplied equipment. RETURN FOR REPAIR POLICY (WARRANTY/NON-WARRANTY REPAIR) Return status can be determined upon factory inspection of returned equipment. A completed Return Authorization form must accompany all items returned for repair. Repairs will be evaluated as quickly as possible. Cost for non-warranty repairs will be provided before repairs are initiated and repairs will be completed only after approval by customer. 217 South Fifth Street, Perkasie, PA PH: FAX: