12
Connecting Inlet Power, Input and Output Signals
Option 03 and 04 fuses are located in a separate threaded compartment (see Figures 3.1 and
3.2). To check the fuse, use a small flat-bladed screwdriver and turn the cover counter-clockwise.
The cover and fuse should pop out. CAUTION: Replace fuse only with another of the same type
and rating. See Table 3.1 for the correct fuse configured for your option.
3.2
Connecting Voltage and Current Signals
The following pages contain various diagrams that describe how to connect the 1133A to several
common types of power system configurations. Please refer to this section for connecting currents
and voltages.
3.2.1
AC Voltage Inputs
Do not exceed maximum voltage limit of 600 Vrms. Use extreme caution when working with
high voltages. Attach voltage signal wires to the supplied 4-pin, female connector-plug using the
compression screws. Insert the connector-plug into the male connector (shown at right) on the
1133A and tighten the safety locking screws.
Prior to applying the voltages to the AC Voltage Inputs, use DSP Mode to set up the input range
of the 1133A. DSP Mode is found under “Configuring Measurement Parameters” in Section 7.4.
3.2.2
AC Current Inputs
Do not exceed the maximum current limit of 20 Arms. Use extreme caution when working with
high voltages. Attach current signal wires to the supplied 6-pin, female connector-plug using the
compression screws. Insert the connector-plug into the male connector on the 1133A and tighten
the safety locking screws.
Prior to applying currents to the AC Currents Inputs, use DSP Mode to set up the input range
of the 1133A. DSP Mode is found under “Configuring Measurement Parameters” in Section 7.4.
3.2.3
Electrical System Connection Diagrams
Listed on the following pages are six common electrical system connection diagrams that should
provide additional assistance with connecting system wiring to the main electrical inputs on the
Model 1133A.
