Emerson E2 operation manual Low Battery Notification, Battery Enable Switch, Battery Test

battery conditions and allow you to test and replace the battery.

4.4.1Low Battery Notification

The E2 keeps track of how long the E2 battery has

been active, and will display a battery icon at the top of the E2 screen whenever the battery is reaching the end of its recommended battery life. If a battery has less than 30% of its battery life left, a yellow battery icon will appear at the top of the screen. If the battery has less than 10% life left, or if the battery switch is currently disabled, a red battery icon will appear.

4.4.2The Battery Enable Switch

The battery enable switch is located near the battery clip on the processor board. This switch should be set to OFF whenever the E2 unit is not being used to preserve battery life. If the E2 unit is powered up with this switch set to OFF, a red battery icon will appear at the top of the screen. Check the position of this switch, and set it to the ON position. You will have to perform a battery test to clear the battery icon from the screen. See Section 4.4.3, Battery Test below:

4.4.3Battery Test

E2’s automatic calculation of battery life is based on the number of hours it has been active, not its voltage. If you wish to know for certain if the battery is good, you can perform a battery voltage test from the E2 front panel. You will need to perform this test to remove a yellow or red battery icon from the screen. If you are replacing the bat- tery and wish to remove the battery icon from the screen, see the instructions under Section 4.4.4, Battery Replace- ment - Qualified Technicians Only.

To perform a battery test:

1.Log in to the controller (level 4 password or higher).

2.Press , followed by ---to navigate to the System Tests screen.

3.Move the cursor to the Battery Test field. Press for Yes and press .

The dialog box that appears will show the CPU Battery status (OK or FAIL) and the Battery Switch position (ON or OFF). If the CPU Battery is OK and the switch position is ON, the battery icon will disappear. Otherwise, the bat- tery should be replaced or the switch set to ON.

4.4.4Battery Replacement - Qual- ified Technicians Only

To replace the battery, remove it from the battery clip

and replace it with an identical 3.6V battery obtained from or approved by Retail Solutions. DO NOT USE AA BAT-

TERIES IN THIS BATTERY SLOT.

After replacing the battery, you must tell E2 the battery has been replaced so it can reset its battery life counter.

1.Log in to E2 (level 4 password or higher).

2.Press , followed by ---to navigate to the System Tests screen.

3.Move the cursor to the Replace Battery field. Press for Yes, then press .

4.Make sure the new battery is in place, and press .

If successful, the battery icon should disappear from the top of the screen. If it is still there, check for proper battery placement, verify the battery enable switch posi- tion, and repeat this procedure.

4-6 • E2 RX/BX/CX I&O Manual 026-1610 Rev 13 14-SEP-2011