ATL-PV Test Leads 
Instruction 
Probe tip guard cap 
For CAT III or CAT IV environments, use the test leads 
with the probe tip guard cap fixed firmly. Without the 
probe tip guard cap, the test leads can be used in 
CAT II environment ONLY. 
 
For 1500V AC & 2000 V DC measurement, This test 
lead can only be used in the environment that is not 
connected to MAINS directly. 
Caution 
 
Make sure that test leads are firmly connected to the 
V-COM terminals of the correct instrument, and the 
instrument have to switch to PV mode. 
 Warning 
•When using test leads or probes, keep your fingers 
 behind the finger guards. 
•Use caution with voltages above 30 Vac rms, 42 Vac 
 peak, or 60 Vdc. These voltages pose a shock 
 hazard. 
•If the test lead is used in a manner not specified by 
 the manufacturer, the protection provided by the 
 equipment may be impaired. 
•To reduce the risk of fire or electric shock, do not use 
 this product around explosive gas or in damp 
 locations. 
•DO NOT USE the test leads when the internal white 
 insulation layer is exposed. 
•DO NOT USE the test leads above maximum ratings 
 of CAT. environment, voltage and current, that are 
 indicated on the probe and the probe tip guard cap. 
•DO NOT USE the test leads without the probe tip 
 guard cap in CAT III and CAT IV environments. 
•DO NOT USE the test leads to measure over 
 1000V that is connected to MAINS directly. 
Maintenance 
 
Do not attempt to repair this test lead set. It contains no 
user-serviceable parts. Repair or servicing should only 
be performed by qualified personnel. 
 
Cleaning 
 
Clean the test lead with a water and mild detergent. DO 
NOT use abrasives or solvents and DO NOT IMMERSE 
in liquid. 
 
Specification 
 
Input Impedance: 10MΩ
Overvoltage Category: CAT II 1000V AC ,1500V DC 
 CAT III 1000V, CAT IV 600V. 
Pollution Degree 2 
Exposed probe tip length : 
19 mm to 4 mm (0.75 inch to 0.16 inch) 
Environmental ratings : 
-10°C to 45°C (-4°F to 113°F), 80% R.H. 
Altitude : 2000 m (6,562 ft) 
Safety Standard : EN61010-031 
 
CAT Application field 
ⅡThe circuits directly connected to Low-voltage 
installation. 
ⅢThe building installation. 
ⅣThe source of the Low-voltage installation.