Overview
The S.J. Controls EBU (Electronic Batching Unit) is a solid state predetermining batch control system. It is equipped with a 5-digit preset, a 5-digit LED display and a 6-digit totalizer (electromechanical non-reset). When the EBU is reset the preset amount is transferred to the LED display and the control relay is energized. In the field a flow element sends digital pulses to the EBU, where they are filtered, scaled if required, and then processed. The processed pulses are then used to decrement the LED display (counts down) and are also divided by 10 and used to increment the totalizer (counts up). When the EBU reaches the floating zero set point the control relay is released.
Standard features include component failure alarm, over-run indicator, battery back-up with indicator, floating zero and membrane switching with all provided in one of two splash-proof enclosures.
The EBU is designed for batch control in areas where accidental splashing or hose-down may occur. We do not recommend hosing down any electrical equipment.
Power Source: 120 VAC standard (240 VAC optional) + 10% 50/60 Hz 50W
Flow Signal From Input: Reed pulsers, photoelectric pulsers, magnetic and proximity sensors (some electronic sensors may require pre-amplification). System requires a square wave input with pulse registered at Logic O.
Output Power To Source: + 15 VDC
Pusle Input Frequency: DC to 7000 Hz. Contact bounce filter adjustable for maximum inputs of: 5 Hz, 375 Hz, 3200 Hz and 7000 Hz.
Control Outputs: Single stage - DPDT contacts, two stage - additional DPDT contacts. Contacts are rated at 5 amps no inductive. Contacts are fused at 5 amps
Operating Temperature: 0 Deg. F to 130 Deg. F
S.J. Controls, Inc., has a new product one year limited warranty covering both parts and labor. Repair and replacement parts are guaranteed for 90 days. Should any instrument become defective due to faulty parts or workmanship within the warranty period, it will be repaired at the factory at no charge. S.J. Controls, Inc., will pay for transportation one-way within the continental United States if the new device proves to be defective within one year of shipment. S.J. Controls, Inc., will not pay air freight or packing charges. The warranty period begins with the shipping date of the equipment to the original purchases. All requests for warranty service must be received within the warranty period.
S.J. Controls, Inc., liability is limited to repair or replacement of the defective controls. Under no circumstances is S.J. Controls, Inc., liable for consequential damages. The following are not covered by this warranty: Damage due to corrosion, abuse, accident, alteration and suitability for specific purpose.
This warranty is expressly in lieu of all other warranties and obligations, and no person has authority to change it.
The Warrantor is:
S.J. Controls, Inc.
2248 Obispo Ave., Suite 203
Signal Hill, CA 90755
