Справочник Пользователя для MAC Tools Refrigerator ACL2500
5
OPERATING FEATURES
•
Battery Test Function. This feature is activated by pressing the Battery Test key.
When pressed, the LED’s will display a three color bargraph indication of true
battery voltage (See Fig. 4). The LED’s correspond to voltage as shown in the
figure.
When pressed, the LED’s will display a three color bargraph indication of true
battery voltage (See Fig. 4). The LED’s correspond to voltage as shown in the
figure.
Not all LEDs will always be on; the number of LEDs on, indicate the voltage
level.
level.
The battery voltage display will remain as long as the BATTERY TEST key is
depressed. Release the BATTERY TEST key to return to normal operation. This
function may be activated at any time during operation, and does not interrupt
alarm signals.
depressed. Release the BATTERY TEST key to return to normal operation. This
function may be activated at any time during operation, and does not interrupt
alarm signals.
Automatic Circuit/Reset Feature
The ACL2500 features an Automatic circuit and a Reset function key that set the
unit to ignore ambient concentrations of refrigerant.
unit to ignore ambient concentrations of refrigerant.
·
AUTOMATIC CIRCUIT - Upon initial power on, the unit automatically sets itself
to ignore the level of refrigerant present at the tip. Only a level, or concentration,
greater than this will cause an alarm. CAUTION: Be aware that this feature will
cause the unit to ignore any refrigerant present at turn on. In other words, with
the unit off, if you place the tip up to a known leak and switch the unit on, no
leak will be indicated!
to ignore the level of refrigerant present at the tip. Only a level, or concentration,
greater than this will cause an alarm. CAUTION: Be aware that this feature will
cause the unit to ignore any refrigerant present at turn on. In other words, with
the unit off, if you place the tip up to a known leak and switch the unit on, no
leak will be indicated!
·
RESET FEATURE - Pressing the RESET key during operation performs a similar
function. When the RESET key is pressed it programs the circuit to ignore the
level of refrigerant present at the tip. This allows the user to ‘home-in’ on the
source of the leak (higher concentration). Similarly, the unit can be moved to
fresh air and reset for maximum sensitivity. Resetting the unit with no refrigerant
present (fresh air) causes any level above zero to be detected. Whenever the
unit is reset, the LED’s (except the leftmost power indicator) will turn Orange for
1 second. This provides a visual confirmation of the reset action.
function. When the RESET key is pressed it programs the circuit to ignore the
level of refrigerant present at the tip. This allows the user to ‘home-in’ on the
source of the leak (higher concentration). Similarly, the unit can be moved to
fresh air and reset for maximum sensitivity. Resetting the unit with no refrigerant
present (fresh air) causes any level above zero to be detected. Whenever the
unit is reset, the LED’s (except the leftmost power indicator) will turn Orange for
1 second. This provides a visual confirmation of the reset action.
Sensitivity Adjustment
The ACL2500 provides seven levels of sensitivity. The sensitivity level is indicated
on the visual display when either the SENSITIVITY
on the visual display when either the SENSITIVITY
a
OR SENSITIVITY
b
keys are
pressed. The base beeping tone is also an indication of sensitivity level.
2.5V
2.6V
2.65V
2.7V
2.8V
2.9V
3.0V
Red
Orange
Green
BATTERY TEST DISPLAY
Fig. 4