NOTE: This tester has been designed and checked in accordance with
IEC Publication 348, safety requirements for electronic measuring equipment, IEC
61268-1010 (EN61010) and other safety standards. Please follow all advice to
ensure safe operation.
1.1.- Description
Some of the most important features of the the T-3V are:
Ability to measure earth voltage.
The 2 mA measurement current allows floor resistivity to be tested
without tripping the earth circuit breakers in the circuit to be checked.
Battery operation.
Self-disconnecting. The timer automatically operates after 3~6 minutes
without operating any check. When the operating button and the timer
activator are pressed at the same time, the measurer is kept operating.
Memory reading function.
Open circuit indicator. The OFF LED indicates when the connection for
the test points is correct.
Compact and light.
Designed to meet safety standard IEC-1010 (EN61010).
Before starting measurements, carefully read the Safety Advice section.
Connecting the test pins:
Connect the green, yellow and red test pins to the terminals E, P and C with the
earth rods P1, C1 placed in the ground "in a straight line" (see figure).
Place the function switch [7] onto the ACV position and ensure that the voltage
reading is less than 10 V AC. If not the accuracy of the earth resistance
measurement cannot be guaranteed.
If the PUSH-ON [9] button is pressed and the operating indicator [2] does not
come on, thisl means that there is an open circuit between the test pins.
200V
~
510m
~
510m
~
Place the range switch [8] on the appropriate scale and the function switch [7]
on position "Ω". Then press PUSH-ON [9] and TIMER ON10] at the same time
and read the value on the indicator.
NOTE: When none of the E, P and C terminals is connected to the test pins, a
reading between 300 and 600 is normal (in function Ω, range 2 kΩ).