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MODEL A-701 DIGITAL READOUT INSTALLATION AND OPERATING INSTRUCTIONS
INSTALLATION AND MAINTENANCE INSTRUCTIONS

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
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TM 5-3895-374-24-2 MODEL A-701 DIGITAL READOUT WIRING CONNECTIONS Refer   to   accompanying   circuit   schematics   for   typical wiring    arrangements.        Note    that    the    A-701    Digital Readout contains a 24V DC @ 50mA DC internal power supply   capable   of   operating   most   Dwyer   transmitters. See figure C.  With external power supplies or as part of an EMS (energy management system), wire according to drawings D and E.  All three circuits require 120V AC line current to terminals 13 and 15.  Solder all wires to edge connector  and  use  heat  shrink  tubing  to  insulate  each terminal.  Attach connector to edge of circuit board. 2-WIRE CONNECTION USING A-701 24 VDC @ 50mA.  OUTPUT INTERNAL POWER SUPPLY FIGURE C 2-WIRE CONNECTION USING EXTERNAL POWER SUPPLY. FIGURE D A-701 INDICATOR IN A SERIES LOOP WITH AN ENERGY MANAGEMENT SYSTEM (EMS). FIGURE E MAINTENANCE Following  final  installation  of  the  A-701  Digital  Readout no  routine  maintenance  is  required.    Periodic  checks  of calibration are recommended using procedures described  above.    Units  are  not  field  serviceable  and should be returned to factory if repair is necessary. FR NO.  01-440697-0 Litho in USA 7/91 (page 3-714)







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