instrument in anti-static area. Before connecting the cable to the instrument, the inner and outer conductors should be grounded briefly to release the static electricity. Pay attention to carrying safety. To avoid the instrument sliding in the process of carrying, causing damage to the keys on the panel, the knobs or interfaces, please pay attention to carrying safety. Interference tests for all models comply with Class A standards, based on EN 61326:1997 +A1+A2+A3 Input terminal protection limits. The protection limits are defined for the input terminals: 1. Main input (HI and LO) terminals.
The HI and LO input terminals are used for voltage, resistance, capacitance, connectivity, frequency, and diode test measurements. These two terminals define the following two protection limits: 1) HI to LO protection limit. The HI to LO protection limit is 1000 VDC or 750 VAC, which is also the maximum measurable voltage. This limit can also be expressed as a maximum of 1000 VPK. 2) Lo to the ground protection limit. LO input terminals can safely "float" to a maximum of 500 Vpk relative to the ground. The HI terminal protection limit is up to 1000 VPK relative to the ground. Therefore, the sum of the "floating" voltage and the measured voltage must not exceed 1000 VPK. 2. Sampling terminal.
1) The HI and LO Sense terminals are used for DCV proportional measurements, four-wire resistance and temperature measurements. The measurement limit for all terminal pairs is 200 Vpk: LO Sense to LO input, HI Sense to LO input, HI Sense to LO Sense. 3. Current input terminal. The measurement limit is 10.5A (DC or AC) when using the 10A-current- input terminal and the LO terminal. The measurement limit is 3.1A (DC or AC) when using 3A-current-input terminal and the LO terminal. Note: To avoid blowing the fuse or damaging the multimeter, please follow the instructions below to use the current input terminals.
1) When performing current test measurements, be sure to select an appropriate current input terminal according to the expected current size before switching on the multimeter power. 2) The maximum current input to 10A terminal shall not exceed 10.5A, otherwise, the