Hoffman Media EDD-4C manual

Dripmaster EDD-4C

U.S. Patent No. 5,996,739 & other countries

Document filename: Dripmaster_EDD-4C_User_Guide_18May10.doc

Important notice: Hoffmann & Hoffmann reserves the right to change this document without further notice due

to design improvements, functional modifications or quality/reliability amendments.

Contents

Main Dripmaster EDD-4C User Guide Revision History Contents List of Figures List of Tables Section 1: Introduction Overview Page Section 2: Installation Page Installation Kit Mounting the Dripmaster Wiring the Power and Control Cables Power cable entry Control cable entry Green ground wire connects here Caution: External 24 VAC power source must be isolated from ground. Setting the Drip Rate Section 3: Operation Controls and Indicators Button and indicator locations on the Dripmaster control panel are shown below. Figure 6: Dripmaster control panel Table 3: Control panelcontrols and indicators Page Page Automatic Control 35 dpm toggle switch setting 40 dpm toggle switch setting Pre-lube (pump off) Mode Manual Control Resetting the Dripmaster Section 4: Theor y of Operation General Needle Valve Dripper Dripmaster Mechanical Stage / Control Circuitry Search Feature Overflow/vent hose Push-Down and Push-up Features Section 5: Maintenance and Troubleshooting Problem Possible Cause Solution Section 6: Specifications Table 6: Dripmaster EDD-4C specifications Overall Dimensions Figure 11: Dripmaster dimensions The Dripmaster enclosure is made of painted, cast aluminum. Section 7: Dripmaster Service Policy Installation Repair procedure Product within the Warranty Period Product Out-of-Warranty Period Return Instructions Terms & Conditions on reverse