Summary of Contents for MERRICK 100 VOLUMERIK Series
- Page 1 ® SERIES 100 VOLUMERIK VOLUMETRIC DRY FEEDER OPERATING AND MAINTENANCE INSTRUCTIONS Merrick Industries, Inc. 10 Arthur Drive Lynn Haven, FL 32444 850-265-3611 www.merrick-inc.com...
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Page 3: Table Of Contents
The information in this manual, including technical data and copies of drawings, embodies information proprietary to Merrick Industries, Inc. and this manual is provided to the user of equipment purchased from Merrick Industries, Inc. for use only in operation or maintenance of such equipment. Such information in this manual is not to be used, disclosed, copied, or reproduced in whole or part for any use other than that indicated above, or for any other purpose detrimental to the interests of Merrick Industries, Inc. -
Page 4: Safety Precautions
1.0 SAFETY PRECAUTIONS 1.1 Danger from Electrical Hazard Since this feeder is electric motor driven and includes electrical components, the hazard of electrical shock can exist. Installation and wiring of electrical components should be in accordance with all applicable codes. 1.2 Operational Hazards To avoid possible personal injury, the following guidelines should be followed:... -
Page 5: Principles Of Operation
Standard range with an SCR DC motor drive is 20 ® to 1. With a Merrick XTRA DC drive, the range expands to 60 to 1. The controller converts alternating current to direct current to drive the DC motor. -
Page 6: Models 100-V1, V2 Or V3
FEEDER DESCRIPTION The Series 100 Volumerik® feeder is a rugged screw feeder that utilizes a single auger to meter powder or pellets to a process. The feeder is available in three sizes: 100-V1 (0.38”-1.25” diameter augers), 100-V2 (1.5”-3.0” diameter augers) and 100-V3 (3.5”-6” diameter augers). -
Page 7: Motor Control
Motor Control a. Volumerik Feeders are supplied standard with a high efficiency PWM (Pulse Width Modulated) DC drive that provides a 50:1 turndown at full torque. This permits a wide range of metered material with a single size auger. The high efficiency of the drive (1.05 form factor) extends motor and brush life. -
Page 8: Feeder Setup
4.2 Setting the Current Limits The Merrick XTRA DC drive has a CURRENT LIMITER feature to help protect the auger and gear reducer from damage. Use the following procedure to adjust. -
Page 9: Adjusting The Vibrator
4.3 Adjusting the Vibrator a. If a Vibrator is included for pre-conditioning the feed material, the vibrator must be adjusted in both amplitude and activation time. It is important that only the amount of vibration required to keep the auger full is used. Over vibration can cause material packing and cause possible feeder damage. - Page 10 A series of jumpers are located at J2. Place the jumper at the next highest current setting than was observed when feeding material. The feeder will now trip as soon as the drive mechanism sees an incremental current spike that exceeds this value.
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Page 11: Feeder Maintenance
5.0 FEEDER MAINTENANCE a. The Series 100 requires virtually no maintenance. Only the lubricant in the gear reducer must be changed at the manufacturer’s recommended interval. Motor brushes should be checked periodically, but brush life should be greatly extended due to the use of a PWM rated motor and PWM motor controller. b.
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