CLASS 3400 METER
5
62-0391-03
CAUTION
Internal circuit card components are extremely sensitive to electrostatic
discharge. Prior to handling or touching internal circuitry, discharge any
static buildup on your person. To discharge yourself, touch a grounded
metal object such as conduit or an earth grounded metal enclosure.
WARNING
Use of this instrument, the E-Mon D-Mon Class 3400, in a manner
inconsistent with this manual or not specified by the manufacturer in
writing, can cause permanent damage to the unit and/or serious injury to
the operator. The protection and safety features provided by this
equipment may become impaired or otherwise compromised.
NOTE: If any trouble arises during installation or functional verification opera-
tions, do not immediately remove unit. Before removing the unit, con-
tact E-Mon’s technical support department at (800) 334-3666. E-Mon’s
technical department will assist you in detailed troubleshooting of the
Class 3400 installation and assist you in getting the unit operating cor-
rectly.
2.0 INTERNAL ELECTRONIC ASSEMBLIES
The units are comprised of two major subassembly boards, the main power board and
the display board. Both circuit boards are mounted inside a NEMA 4X enclosure.
Fig. 1. Internal Electronic Assemblies.
MAIN POWER
BOARD
DISPLAY
BOARD
M33315