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The IRT 1557 insulation resistance and continuity tester is a small and hand-held tester - a superb addition to any test engineer's toolkit.
It performs measurements according to BS 7671 17th Edition Wiring Regulations and Part P. Seaward's unique integrated safety probe puts the LCD and test probe in the user's line of sight whilst making measurements, no other tester does this. IRT 1557 is fully compliant with EN 61557 and IEC 61010-1 600v CAT lll. Automatic discharge of capactive circuits, it gives you automatic warning of the presence of hazardous voltages.
It comes with an easy to use rotary setting switch. The IRT 1557 offers a number of unique features, including voltage measurements up to 1000AC or DC and a dual safety rating. With incredible robustness the IRT 1557 provides all the tests you need with a safe feel.
IRT 1557 Insulation Resistance and Continuity Tester
Ideal Users
Insulation Resistance
Display Range 0.001Mohm - 1999Mohm
Analogue Bar Graph 0ohm - infinity
Test Voltage 250v; 500v; 1000v
Nominal Current 1mA minimum per EN 61557
Audible/Visible Warning Inhibited if 30 V AC or DC at inputs
Continuity
Display Range 0.00ohm - 19.99ohm
Open Circuit Test Voltage 4V DC nominal
Test Current 200mA,
Audible and Visible warning Inhibited if 30 V AC or DC at inputs
Resistance
Display Range 0ohm - 2000ohm
Test Current 25uA nominal
Audible and Visible warning Inhibited if 30 V AC or DC at inputs
Voltage
Display Range 0V - 1000V DC/AC to 400Hz
Analog Bar Graph 0 - 1000V
Audible/Visible Warning 30 V AC or DC at inputs
ADDITIONAL INFORMATION
Safety rating IEC 61010-1, 600V CAT III
/ 1000V CAT II
Dimension 260mm x 100mm x 55mm
Weight 0.8kg
Compliance EN 61557-1, -2, -4, -10
ACCESSORIES
Hardware
PowerCheck 1557 (369A910)
Software
PowerGuard Pro 2 (355A910)
PowerGuard Pro Mobile 2 (355A920)
IRT 1557 part no: 365A910
