Check The Battery - iOptron CEM70 Instruction Manual


Slew: mount is moving with an arrow key is pressed or a GOTO command, such as "Select
and Slew" or "Goto Zero Position";

Tracking: mount is at a tracking status.
10. GPS status: When the power is turned on, the initial GPS status will be "GPS ON", which means
that the mount is connected to its GPS receiver and is seeking a satellite signal. When the GPS
receiver finds the satellites and receives the GPS signal the status will change to "GPS OK".
11. PEC status: Display of "PEC" here Indicates the Periodic Error Correction playback is turned on.
Default is off.
12. Tracking speed: Displays the current tracking rate of the mount.

SDRL: mount is tracking at sidereal speed;

Solar: mount is tracking at solar speed;

Lunar: mount is tracking at lunar speed;

King: mount is tracking at king speed;

CSTM: mount is tracking at a custom, user-defined speed.
13. Slew speed: The mount has 9 slew speeds: 1X, 2X, 8X, 16X, 64X, 128X, 256X, 512X,
MAX(3.75°/sec).
14. Operation Mode: EQ indicates that the mount is operating in an equatorial mode.

2.5. Check the Battery

The hand controller has a real time clock (RTC) which should display the correct time every time
the mount is turned on. If the time is incorrect, please check the battery inside the hand
controller and replace it if needed. The battery is a 3V, CR2032 button battery.
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