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PARAMETER SETTING:

1. Press “SET” key and hold for at least 4 seconds until display shown

“— — —” sign then release the “SET” key. The sign “— — —” starts to flash

and reminding the user to input the mode lock password “010” (fixed). If the user

inputs the same number as “010”, the unit will enter the modes selection

procedure, otherwise, the unit will be back from the current mode automatically.

2. After the unit enters the Modes selection, the LED will display “F-0”and flash.

Press “▲”or “▼” key to select modes. If the user doesn’t press “▲” or “▼” key

within 15 seconds or press “SET” key one time, then the unit will be immediately

back from the Parameter Set status.

For example: F-0 → F-1 → F-2 → F-3

↑ ↓

← ← ← ←

3. Password Setting:

When the LED displays “F-1” flashes, press “SET” key one time and the unit

enters the Password Set status. At this moment, the LED displays the pre-set value.

Press “▲” or “▼” key to change password set value. If the user sets “000” that

means the unit will be under the status of no password. If the user sets “100” then

means the unit will be under the password status. Pressing “SET” key once to

finish password setting and the unit will backup mode, the user can continue set

other modes or back from the setting mode.

4. Temperature Correction Setting:

Press “SET” key once when the LED displays “F-2” and flashes that the unit

enters the Temperature Correction Mode. At this moment, the LED displays preset

correction value.

A: Operation of Centigrade temperature correction（+99℃~-99℃）

Press “▲” or “▼” key to change the temperature correction value. The first digit

“— ” means minus (actual temperature is down), “No display” means plus

(actual temperature is up).

B: Operation of Fahrenheit temperature correction value [（+178℉~-178℉ ）for

LF-389D and (+210℉~-210℉) for LF-399D]

Press “▲” or “▼”key to change the temperature correction value. When the

numbers is sparkling on LED displays, it means minus value (actual temperature

is down), when the numbers stop sparkling, it means plus value (actual

temperature is up). Press “SET” key once to finish the temperature correction

and the unit automatically backup mode. The user may continue set other modes

or back from the current setting mode.

Xytronic LF-389D User Manual

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