Install And Check The Hand Controller Battery; Bench Testing The Mount - iOptron CEM40 Instruction Manual

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;

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 (~4º/sec).
14. Operation Mode: EQ indicates that the mount is operating in an equatorial mode.

2.4.3. Install and Check the Hand Controller 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 hand controller uses a CR2032 button battery to keep the Real Time Clock running. The HC is
shipped without battery installed due to shipping restrictions. Open the HC back cover using a good size #1
Phillips driver. With battery + sign facing up, slide the battery under two small metal hooks on the positive
side first. Then push the battery down to make a good contact.
If the hand controller can't display the correct date and time, most likely the battery power is low and
needs be replaced.

2.5. Bench Testing the Mount

The counterweight shaft is designed to counter balance the mount's own weight. It is recommended
that the CW shaft is installed when testing the mount's function. Slewing the mount without the CW shaft
installed is not recommended.
NEVER operate the mount with only the counterweight or OTA on it
drive system.
Figure 14. Install a CR2032 battery
14
.
It may damage the mount