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1744/1743
Users Manual
16
• Use only the current probes specified in this manual. If
you use flexible current probes, wear suitable
protective gloves or work on de-energized conductors.
• Do not expose the Logger to moisture or humidity.
• To prevent electrical shock, always connect power
supply and voltage test leads to the Logger before
connecting to the load.
• All accessories must be approved for 600 V CAT III or
higher.
• Use the Logger only with its original standard
equipment or with approved optional accessories, as
listed in Table 2 and Table 3 in this manual.
• Connect clip-on current transformers and/or Flexi Set
to insulated live conductors only.
• If measuring sensors are to be connected to non-
insulated live conductors, additional personal
protective measures must be taken as required by local
government agencies.
W Caution
To avoid damage, use the 1744/1743 Power Quality Logger,
only with the following nominal voltages:
• Single-/3-phase, 4-wire (Wye) systems (P-N): 69 V
to 480 V
• 3-phase 3-wire (Delta) systems (P-P): 120 V to 830 V
WX Warning
To avoid electrical shock, or damaging the Logger’s
internal protective circuitry or weatherproof seal, do not
open the Logger.