FUTEK IPM600 (D610) Digital Display - Manual (Page 4)

Safety Precautions
About the built-in lithium battery
About the signal I/O terminal block
Never disassemble, deform under pressure or throw the battery
into fire.The battery may explode, catch fire or leak.
- Battery
Model: CR2477-1HF made by Matsushita Battery Industrial Co., Ltd.
Nominal voltage: 3V
Nominal electric capacity: 1000mAh
WARNING
For connection to the signal I/O terminal block, wire correctly after
checking the signal names and terminal block numbers.
Also, turn off the power of the main body before connection/wiring to the
signal I/O terminal block.
CAUTION