Specifications

28
Ordering information
LT544DPLUS United States, 85 V ac to
265 V ac, 50/60 Hz
LT544DPLUS-AUS Australia, 85 V ac to
265 V ac, 50/60 Hz
LT544DPLUS-ISR Israel, 85 V ac to 265
V ac, 50/60 Hz
LT544DPLUS-ITL Italy, 85 V ac to 265
V ac, 50/60 Hz
LT544DPLUS-SWS Switzerland, 85 V ac
to 265 V ac, 50/60 Hz
LT544DPLUS-UK United Kingdom, 85 V
ac to 265 V ac, 50/60 Hz
LT544DPLUS-2020 85 V ac to 265 V
ac, 50/60 Hz, 20-Amp NEMA power
plug with 20-Amp female power
connector
LT544DPLUS-230V 85 V ac to 265 V
ac, 50/60 Hz, 230 V ac North America
power plug and female power connector
Included accessories
600/100FG Chassis Cable, coil cord,
8 ft extended
600/101FG Chassis Cable, coil cord,
16 ft extended
600/102FG Chassis Ground Probe, 8 ft
coil cord
600/600FG Soft Carrying Case (6 in x
10 in x 4 in)
600/200FG External Leakage Cable,
coil cord, 8 ft extended
600/201 External Leakage Cable, coil
cord, 16 ft extended
600/206 Universal Ultrasound Probe
Tester
Key features
• Small, lightweight, self-con-
tained portable instrument
• Universal power supply—input
voltage from 85 V ac to
265 V ac
• Chassis resistance mea-
surements 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 mea-
sured in Open/Closed Neutral,
Normal/Reversed Polarity and
Open/Closed Ground
• All Leakage current measure-
ments are displayed directly
in µA
This device is designed to
perform simple electrical
safety tests on any type
of medical equipment,
whenever patient lead
testing is not required.
The rugged, hand-
held instrument is built
for quick and easy use.
A simple selector knob
controls the functions:
Line Voltage, Instrument
Current, Leakage Current
and Chassis Resistance.
Accurate test measurements are shown on the large display.
Heavy-duty switches change polarity, open and close the neutral and
select Chassis or Earth Leakage Current measurements. A four-wire Kelvin
bridge eliminates reading errors in resistance due to cable length and
contact resistance. True-rms measurements are provided for all current
readings. The AAMI test load is utilized.
Line voltage
Range 85 V ac 265 V ac
Resolution 1 Volt
Accuracy 2 % R ± 1 LSD
Instrument current
Range 0.0 A to 19.99 A
Resolution 10 mA
Accuracy 5 % R ± 1 LSD
Ground resistance
Range 0 W 19.99 W
Accuracy ± 1 % R, ± 1 LSD
Resolution 10 mW
Load current
Range 0 A to 14.99 A (LT544Dplus – 1515)
0 A to 19.99 A (LT544Dplus – 2020)
0 A to 9.99 A (LT544Dplus – 230 V)
Accuracy ± 4 % R, ± 1 LSD
Leakage current
Range 0 µA to 1, 999 µA
Accuracy DC and 25 Hz to 1 kHz: ± 1 % g, ± 3 LSD
1.0 KHz to 100 KHz: ± 2.5 % of reading, ± 3 LSD
100 KHz to 1 MHz: ± 5 % of reading, ± 3 LSD
Current capacity LT544Dplus-1515: 15 A at 120 V ac
LT544Dplus-230V: 10 A at 230 V ac
LT544Dplus-2020: 20 A, 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 A @ 120 V, 10 A @ 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)
LT544DPLUS
Digital Safety Tester
Specications
Electrical Safety Analyzers
riešenia na presné meranie
http://www.elso.sk