Voltage Measurement - BizLine BIZ 780 311 Manual De Instrucciones

EN
• Never use the equipment while the voltage is beyond the range (referring to technical specification
parameters) and above 800V;
• Before use, be sure the equipment can function well;
• To ensure normal operation of tester, measure a known voltage value in the first.
• The tester cannot be used any more in case of one or several functional failure(s) or no functional
indication.
• Never test in wet conditions.
• Display functions well only when the temperature ranges -15°C - +45 °C and relative humidity is <85%.
• The instrument must be repaired in case the personal safety of operator cannot be guaranteed. The safety
would be no longer guaranteed in any of the following circumstances:
1) Visible damage;
2) Tester's functions are inconsistent with functions that it supposed to have.
3) It had been stored in inappropriate conditions for a long time.
4) Subject to mechanical extrusion in transit.

4. Voltage measurement

Observe safety test regulations specified in item 3.
Voltage gear of tester is composed LCD segment codes, including 6V, 12V, 24V, 50V, 120V, 230V, 400V
and 690V. LCD segment code would be lighted one after another along with increased voltage, and so will
the polarity LCD segment code indication, AC LCD segment code indication, on-off LCD segment code
indication, RCD indication, rotary phase indication and high-voltage indication.
1. Complete self-check of tester before test. Alter pressing flashlight key 5s, tester would perform AC/DC
full range detection, and blinking displayed LCD. If need to exit self-check, just touch the flashlight key.
Connect two test pens to the conductor to be measured, select a known voltage for measurement, such
as 220V socket, and ensure the measurement accuracy (See Figure 3). The tester cannot measure AC
and DC voltage less than 5V and provides no accurate indication while measured voltage is 5Vac/dc.
Illuminating continuity light or high-voltage
symbol and beeping buzzer are normal.
2. Tester would provide LCD indication while measuring AC or DC voltage. High-voltage LED would be
illuminated and buzzer beeps when measured voltage is extra low voltage (ELV) threshold.
If measured voltage continues to increase and exceed input protection voltage (750Vac/dc) of the tester,
LCD displays «OL» and buzzer keeps beeping.
4
Figure 3