User's Manual

50 Operator’s Manual ZM-520PA/521PA/530PA/531PA
Locking the Keys on the Transmitter
To prevent the patient from pressing the keys on the transmitter during monitoring, you can lock
the keys.
Press the
▼
and ▼ keys at the same time and hold for more than 3 seconds. The key lock screen
appears.
When there is no key operation for one minute after locking the keys, the display turns off.
To unlock the keys:
Press the
▼
and ▼ keys at the same time and hold for more than 3 seconds.
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