WEIHONG LS6000M, Руководство пользователя

Страница: 118 / 121

上海维宏电子科技股份有限公司
SHANGHAI WEIHONG ELECTRONIC TECHNOLOGY CO., LTD
.
115 / 116
6.4 Specifications
Electric parameters

Working voltage & current (handheld device): 3V / 6 mA (two AA batteries)

Low voltage alarm (handheld device): < 2.2V

Transmitting power (handheld device): 14 dB

Receiver sensitivity: -90 dB

Wireless communication frequency: 433 MHz band

Delay: 32 ms
Other parameters

Lifespan of keys: 400
–500 thousand times

Wireless communication distance: 40m in open spaces

Working temperature: -25°
–70°

Anti-collision height: 1.5m

Receiver port: USB 2.0, with 1.5m USB dual-layer shield cable
 USB communication distance: ≤5m
6.5 Precautions
Pay attention to the following:

Ensure that the wireless handwheel is connected properly before opening the
software.

Each handheld device has its matching USB receiver. Avoid mix use.

If the yellow indicator on the handwheel is on, the battery is about to run out. Use
new batteries in time.

Do not install the receiver inside cabinets to avoid affecting signal reception.
6.6 FAQs
If the following situations occur:

After pressing a handwheel button, the machine gives responses after a period of
delay.

After pressing a handwheel button, the machine has no response.

After pressing a handwheel button, it automatically pops back.
Check the working environment as follows:
Case one: The wireless handwheel is placed inside an indoor metal cabinet. No USB
extension cable is used. Communication distance is smaller than or equal to 2m.

Cause: The metal cabinet blocks transmission of wireless signal and causes
unstable communication.

Solution: Place the handwheel outside any metal cabinet, and use it in a barrier-
free environment.
Case two: The wireless handwheel is placed indoor and not inside any metal cabinet.
A USB extension cable of 2
–3m long is used. Communication distance is 10m.

Cause: Use of extension cable can cause unstable communication. If the
interference is severe, it can cause exceptional USB communication and response
delay.

Solution : Do not use extension cable.