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2. Operating instructions for specific functions
2.1. Start-up mode
Hand-held keypad and scale have passed a sync test before leaving the factory. Switch on the
keypad by pressing the power key. This will turn on both the keypad and scale. When it
successfully links with the scale, the blue wireless connection indicator light stays on, and both
wireless signal indication and power are displayed on the LCD screen. The scale is now in
standard weighing mode.
Note:
1. The hand-held keypad will be automatically shut down after 5 minutes if it fails to connect the
scale. If connection succeeds, the scale will turn off automatically if the weight on the scale does
not change within 10 minutes. The scale will restart and actual weight will be displayed when the
weight on the scale more changes more than 4.4 lbs.
2. Overweight alarm warning: the LCD screen display "OL" as if weight exceeds the maximum
weight range, and the buzzer will sound in order to alert you that you may damage the electronic
scale. Remove the excess weight from the scale immediately to prevent damage.
3. If the keypad and scale fail to synch, please verify that the lastfour digits of the serial numbers on
both units are the same. If they are different, please call our office for guidance.
2.2. Measurement unit setting
With measurement unit setting, you can switch between Kg
+
grams and lbs.
+
oz.
1. After switching on the hand-held device, the LCD display will be as follows (the default unit is kg
+
g):
�no
Controller
n
Kg
[ ]
Scale
u
n·
u
2. Depending on the different requirements, press the (ID key, and the weighing unit will switch to
Lb
+
oz, which will be displayed as bellow:
�no
Controller
n
[ ]
Scale
u
Lb
nn
..
u.u
2.3. Back-light setting
You can turn on/off the back-light, based on different conditions. The default setting is no light.
Press the � button in order to switch on the light, and press it again to switch it off. The light stays
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Making Your Job More Enjoyable
A
�
VA.C
on for 30 seconds. After 30 seconds the light will turn off automatically if the scale is not in use.
2.4. Clear setting
In the standard weighing mode, pressing
Gt),
the weight value of the item on the scale will be set to
zero. Pressing
§,
will return from Clear mode, and display the actual weight of the item.
The scale zeros off automatically and data display goes to "O" if weight on the scale is less than 4.4
lbs, or more than 4.4 lbs without making any changes to output with actual weight data.
Note:
While using the Clear program, ensure the vessel on the scale is in weight normal range, and the
weight does not exceed the measuring range of the scale.
2.5. Charge mode operation
The user can use this function to rapidly and safely add refrigerant to the system. After entering the
"Charge" mode, enter the charge value, and start charging. The minimum charge amount is 1.8
oz.
1. Switch on the scale.
2. Place the refrigerant container on the scale, and wait until the reading stabilizes, displaying
total weight of the container. For example, if the container's total weight is 29Lb
+
15. 7oz, the
display will be as follows:
�
�nij
Controller
,g
�nij
Scale
C
Lb
,r,
• J .•
oz
3. Press� and the LCD screen will display the "Charge" function sign. Then enter the net weight
of the refrigerant to be added, and after pressing the ENTER button
§ ,
the net weight to be
charged will be displayed. For example, if you want to add 4Ibs
+
6.5oz of refrigerant, first press�
then enter "0-0-4-0-6-5" on the number pad based on the LCD flash figure, then press
§ .
The
following will be displayed.
�
�llij
Controller
nlb
�nij
Scale
u
rn
n
oz
u
05
