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INTRODUCTION Thank you and congratulations on your purchase of your Merit M-8S Surge Protector and Power Sequencer. The M-8S represents an excellent combination of value and performance and has been designed to provide many years of reliable service. Please take a moment to read this manual and learn about the many features and benefits that the Merit M-8S has to offer. SAFETY INFORMATION 1. Please read and follow all instructions. 2. Please keep these instructions. 3. Please heed all warnings. 4.
FEATURES (Continued) Sequenced Outlets Most sound reinforcement professionals realize the majority of equipment damage occurs while devices are either powered up or powered down. Power sequencing allows AN equipment to be powered up in stages which gives equipment time to stabilize before the next stage of equipment is energized. When powering down, the sequence order is reversed, which results in a soft landing for your expensive AV equipment.
FRONTPANEL FEATURES--- ------------------ -----------------1 11 0 @ FURMAN. PROTECTION OK DELAY3 0 POWER @ DELAY 1, 2, and 3 Indicators: Power Indicator: The DELAY 1, 2 and 3 indicators always show the present state of the corresponding DELAY 1, 2 and 3 outlets. In all cases, if the indicator is ON, the outlet is ON. If the indicator is OFF, the outlet is OFF. The POWER indicator is illuminated any time power is applied to the M-88. Protection OK Indicator: Resettable 15 Amp circut breaker.
REAR PANEL FEATURES (continued) Remote Interface PIN 2 STATUS (Output) The M-8S has a remote interface which can be used to control the M-8S remotely using a Furman RS-1 (Maintained) or RS-2 (Momentary) wall switches. In the most basic, single unit configuration, only two wires and a switch are required to initiate a remote ON or OFF sequence. The switch may be either a momentary or maintained-contact type.
REAR PANEL FEATURES (continued) Rear Panel DIP Switch A rear panel three position DIP switch is used to set the sequence mode (+12V ON, +12V OFF, GND ON, Mom/ Maint) which defines how the M-8S will react to the signal presented on its REM input. The table below summarizes the behavior which is described in further detail below. Note that DIP switch position 2 overrides the setting of DIP switch 1, and DIP switch 3 overrides switches 1 and 2.
REAR PANEL FEATURES (continued) -----------------11 Momentary switches, for example non-latching push buttons, are momentary contact devices that maintain their contact position (open or closed) only as long as the switch is held in a given position. When the switch actuator is released, the switch reverts to its normal position (such as the Fuman RS-2). A switch of either kind may be used to actuate the M-8S's remote operation.
CONNECTING MULTIPLE M-8S UNITS IN PARALLEL Parallel Maintained Mode: To control multiple M-8S units with a single remote switch; connect the REM, +12V, terminals of all units in parallel (Figure A). Make sure that the DIP #3 is OFF and the positions of DIP #1 and DIP #2 on all connected units are set to the same position. Connect a single maintained switch (such as the Furman RS-1) to the nearest M-8S. Fig. A - Three M-8S units configured for Parallel Maintained mode with LED indicator.
CONNECTING MULTIPLE M-8S UNITS IN SERIES (continued) Please note the following: • In series mode, the DELAY 3 outlets of the primary unit and the DELAY 1 outlets of the secondary unit will activate simultaneously. • When sequencing off series connected units, the secondary units will begin to sequence off as soon as the DELAY 3 outlets on the primary unit turns off. This means that both the primary and secondary units will sequence off at the same time.
SPECIFICATIONS Maximum AC Current Rating: • 15 Amps, 120 VAC (Thermal breaker) • ACCord: 14AWGx3, 10 feet, black, fixed, NEMA 5-15P plug User Interface: • Rocker Switch: Front panel, Sequence (ON, OFF) • Thermal Circuit Breaker: Front panel, push to reset • Front panel indicators Delay 1, Delay 2, Delay 3, Power, Protection OK AC Receptacles: • Convenience Outlet (Front Panel) 1 Un-switched NEMA 15-5R • Rear Panel Outlets: 2 Un-switched NEMA 5-15R (1 duplex), • 6'Sequef¥6ed,NEMA 5-15Rqa: ol.
ERIES POWER CO 3 YEAR LIMITED WARRANTY PLEASE SAVE YOUR SALES RECEIPT! The receipt is your proof of purchase and confirms the product was purchased at an authorized Furman dealer. It will need to be submitted to Furman in order to process any warranty claims. liable for incidental, special, or consequential damages. This Limited Warranty states the entire obligation of Furman with respect to the product.
