| 9 !!Cautions: 1 NThe unit must be heated for 15 minutes with power on before use. 2! !Use in ambient temperature of 0-40 C, humidity less than 85% R.H. 3!!The unit alignment interval time is one year. 4! Avoid vibrations or shock, excessive dust, corrosive chemical materials or gas. 5! !lf the input signal is super imposed with high-frequency noise, use a low-passed filter 6! !lnput wire should not be too long. If measured signal have to be far away from the unit, please use 2-core shielded cable, and connect its shield lager to the LO side of the signal source. 7! !If the unit won't be used for a long time, connect power supply every three months, not less than 4 hour each time. 8!!Long time for storing the unit should be in the shade, with temperature of-10C to 70C, humidity less than 60%. Don't contact with organic solvents or oils. |