Small, lightweight, self-contained portable instrument
Universal Power Supply. Input voltage from 85 - 265 VAC
Chassis Resistance measurements are made with a four-wire Kelvin bridge to eliminate errors due to cable length
Test method complies with AAMI load per ANSI/AAMI ES1-1993
Leakage Current can be measured in Open/Closed Neutral, Normal/Reversed Polarity and Open/Closed Ground
All Leakage Current measurements are displayed directly in µAmps

Features LT544Dplus Digital Safety Tester

Small, lightweight, self-contained portable instrument
Universal Power Supply. Input voltage from 85 - 265 VAC
Chassis Resistance measurements are made with a four-wire Kelvin bridge to eliminate errors due to cable length
Test method complies with AAMI load per ANSI/AAMI ES1-1993
Leakage Current can be measured in Open/Closed Neutral, Normal/Reversed Polarity and Open/Closed Ground.
All Leakage Current measurements are displayed directly in µAmps.

Specifications LT544Dlite Digital Safety Tester

Ground Resistance

Range:	0 - 19.99 ohms
Accuracy:	± 1% R, ± 1 LSD
Resolution:	10 mOhms

Leakage Current

Range:	0 - 1, 999 µA
Accuracy:	DC & 25 Hz - 1kHz: ±1% of reading, ± 3LSD
	1.0KHz - 100 KHz: ±2.5% of reading, ± 3LSD
	100 KHz - 1 MHz: ±5% of reading, ± 3LSD

Current Capacity

LT544D^Lite- 1515	15Amps at 120 VAC
LT544D^Lite- 230V	10Amps at 230 VAC
LT544D^Lite- 1520/2020	20Amps, at 230 VAC, 20% duty cycle (2 minutes on, 8 minutes off)

Controls

	1. Function Switch - 4 position rotary
	2. Neutral Switch - 2 position rocker (Open/Closed)
	3. Polarity Switch - 3 position rocker (Normal/Off/Reversed)
	4. Leakage Switch - 2 position rocker (Chassis/Earth)

DUT Power

85 - 265 VAC, 16 Amps@ 120 V, 10 Amps @ 230 V

Physical Size

3.5 x 6.2 x 1.6 inches (90 x 180 x 38 mm)

Specifications LT544Dplus Digital Safety Tester

Line Voltage

Range:	85 V ac to 265 V ac
Resolution:	1 Volt
Accuracy:	2 % Reading ± 1 LSD

Instrument Current

Range:	0 Amps to 19.99 Amps
Resolution:	10 mA
Accuracy:	5 % Reading ± 1 LSD

Ground Resistance

Range:	0 ohms to 19.99 ohms
Accuracy:	± 1 % Reading, ± 1 LSD
Resolution:	10 mOhms

Load Current

Range:	0 to 14.99A (LT544D^plus - 1515)
	0 to 19.99A (LT544D^plus-2020)
	0 to 9.99A (LT544D^plus-230V)
Accuracy:	± 4 % Reading, ±1 ISD

Leakage Current

Range:	0 µA to 1, 999 µA
Accuracy:	DC&25 Hz to 1 kHz: ± 1 % Reading, ± 3 LSD
	1 KHz to 100 KHz: ± 2.5 % of Reading, ± 3 LSD
	100 KHz to 1 MHz: ± 5 % of Reading, ± 3 LSD

Current Capacity

	LT544D^plus-1515: 15 Amps at 120 V ac
	LT544D^plus-230V: 10 Amps at 230 V ac
	LT544D^plus-2020: 20 Amps, at 120 V ac, 20 % duty cycle (2 minutes on, 8 minutes off)

Controls

	1. Function Switch - 4 position rotary
	2. Neutral Switch - 2 position rocker (Open/Closed)
	3. Polarity Switch - 3 position rocker(Normal/Off/Reversed)
	4. Leakage Switch - 2 position rocker (Chassis/Earth)

DUT Power

85 V ac to 265 V ac, 16 Amps @ 120 V, 10 Amps @ 230 V

Power Connectors

	LT544Dplus ....................Standard US
	LT544Dplus-EUR ..........Schuko

Physical Size

90 mm x 180 mm x 38 mm (3.5 in x 6.2 in x 1.6 in)

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