3 Quick Start
3.1 Get Prepared
12
b) built-in battery
The rechargeable lithium batteries are used as the built-in battery pack. Table 3.4 lists the main
performance indexes of the built-in battery pack:
Table 3.4 Performance Indexes of Batteries of 3943B
The rechargeable battery cannot be exposed to fire or high temperature environment, and must be kept
away from children. If the battery is improperly placed, it may cause an explosion. The rechargeable
battery can be reused and placed in a suitable container to avoid short circuit of the battery.
If the instrument is not used for a long time, please take out the battery and place it in a cool, dry and
well-ventilated area. The battery stored for more than half a year should be additionally charged.
2) Confirm and connect the power cord
The 3943B monitoring receiver adopts three-core power line interface and conforms to national safety
standards. Before the monitoring receiver is energized, you must confirm that the protective earth wire in
the power line of the monitoring receiver is
reliably grounded
. Floating grounding or poor grounding
may cause damage to the instrument and even injury to the operator. Using a power cord without
protective grounding is strictly prohibited. When the instrument is connected to a suitable power outlet,
the power cord connects the housing of the instrument to the ground.
When connecting the instrument to the power supply:
Step 1.
Confirm that the working power cord is not damaged;
Step 2. Use the power line to connect the power supply plug of the instrument rear panel to a
well-grounded three-core power socket.
Grounding
Poor or wrong grounding may cause damage of the instrument or personal injury. Before the monitoring
receiver is energized, make sure that the earth wire is in good contact with the earth wire of the power
supply.
Please use a power outlet with grounding protection. Do not use any external cable, power line or
autotransformer without any protective grounding as the protective grounding line. If an autotransformer
is necessary, you need to connect the common terminal to the protective earth wire of the power
connector.
Power supply parameter
Applications
Input voltage
100~240VAC
Operating frequency
50-60Hz
Input current
≥1.7A
Power supply parameter
Performance index
Nominal voltage
14.8V
Nominal capacity
6200mAh
Operating time
≥3h
Warning
!
Warning
!
