Fluke 45 user manual 4.Input Terminals

45

Users Manual

Neither function modifiers (REL, dB, HOLD, and MN MX) nor the manual range mode can be selected in the secondary display. Measurement ranges in the secondary display are always selected through autoranging.

Input Terminals

The input terminals, shown in Figure 3-4, are located on the left of the front panel.

The meter is protected against overloads up to the limits shown in Table 3-1. Exceeding these limits poses a hazard to both the meter and operator.

Volts, Ohms, Diode Test Input Terminal

V	10A
600V CAT I	!
1000V CAT I

COM 100 mA

FUSE F1

500 mA F 250V

FUSED

Amperes Input Terminal. For Current Measurements up to 10A continuous (or 20A for 30 sec).

Milliamperes Input Terminal. For Current Measurements up to 100mA.

				45 DUAL DISPLAY MULTIMETER
V		10A
600V CAT I	!							CAL
1000V CAT I
								ENABLE
COM		100
		mA
	FUSE F1	V	A			REL	dB	2ND
	500 mA
	F 250V					REF#	REF	LOCAL
FUSED		V	A	FREQ AUTO
						HOLD	MN MX	RATE
				COMP	HI	LO THRESH	ADDR	BAUD

POWER

Note: Frequency Measurements are Normally taken

from the VΩ Input, although the 10A and 100mA Inputs can be used.

Common Terminal. Return Terminal for all Measurements.

aam12f.eps

Figure 3-4. Input Terminals

3-4