
Items manufactured by companies other than Smith-Root carry the original manufacturer’s warranty.
Please contact product manufacturer for return instructions.
All Smith-Root, Inc. manufactured products are covered by a one year warranty.
Credit & Refund Policy: Customers returning equipment, in new condition, will be given credit five days
from the date of the return. A return authorization must accompany returns. Valid equipment returns
include, but are not limited to, ordering incorrect equipment, funding deficits, and defective equipment
returned for reimbursement. All returns are subject to a restocking fee and applicable shipping charges.
The restocking fee is figured at 10% of the purchase price but not less than $20.00. Customers receiving
equipment in damaged condition will be referred to the shipping company for insurance reimbursement.
11808.00 MANUAL APEX BACKPACK USER GUIDE - ©2021 Smith-Root, Inc.
CONTENTS
INTRODUCTION ........................................................................ 4
OVERVIEW ..................................................................................5
• APEX CONTROLS AND FEATURES .......................................................... 5
• USER INTERFACE OVERVIEW................................................................... 6
• GRAPHICAL USER INTERFACE (GUI) ...................................................... 6
• MAIN DISPLAY ............................................................................................... 7
• MENU PAGE (1/2) .......................................................................................... 8
• MENU PAGE (2/2) ......................................................................................... 9
BATTERY COMPARTMENT ....................................................10
• BATTERY CONNECTOR ............................................................................. 10
• ANODE AND CATHODE CONNECTORS................................................ 10
• CONTROL CONNECTOR..............................................................................11
SAFETY FEATURES..................................................................11
• EMERGENCY SHUTDOWN SWITCH .........................................................11
• QUICK RELEASE PACK FRAME .................................................................11
• FLASHING RED LIGHT ................................................................................12
• AUDIO ALARM..............................................................................................12
• ANODE SWITCH ...........................................................................................13
• TILT SWITCH..................................................................................................13
• IMMERSION SENSOR ..................................................................................13
• ANODE OUT OF WATER ............................................................................13
• ELECTRONIC CIRCUIT BREAKER ............................................................13
BATTERY COMPARTMENT INTERLOCK SWITCHES .......14
FUSIBLE LINKS.........................................................................14
TEMPERATURE SENSORS .....................................................14
FAULT CONDITIONS ............................................................... 15
• PEAK CURRENT OVERLOAD ....................................................................15
• OUTPUT IGBT FAILURE ..............................................................................15
• AVERAGE CURRENT OVERLOAD ............................................................15
• INVERTER OVERLOAD ...............................................................................15
• LOW BATTERY FAULT.................................................................................15
• BATTERY CURRENT TOO LOW ................................................................15
SETUP AND OPERATION.......................................................16
• BASIC SETUP ................................................................................................16
• RECOMMENDED ADJUSTMENTS .............................................................18
• USING RECALLED WAVEFORMS FOR SETUP ......................................19