6
OPERATING FEATURES
Automatic Circuit/Reset Feature
The TSCE-J1 features an Automatic circuit and a Reset function key that set the 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 ignore any gas concentration when the unit is powered on. In other words, under the condition
that the unit is turned 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 sauce of the leak (higher concentration).Similarly,the unit can be moved to fresh air and Meet
for maximum sensitivity.Resetting the unit with no refrigerant present (fresh air )causes any level above zero to
be detected,Wheneveräre unit is reset, the LEDs(except the leftmost power indicator) will turn red for 2 seconds.
This provides a visual confirmation of the reset action.
Sensitivity Adjustment
The TSCE-J1 provides seven levels of sensitivity.the sensitivity level is indicated on the visual display when either
the SENSITVITY ↑ OR SENSITIVITY ↑. keys are pressed .The base beeping tone is also an indication of sensitivity
level.
When the unit is switched on , it is set to sensitivity level 5. 1.To adjust the sensitivity, press the SENSITIVITY ↑
or SENSITIVITY ↑ key.
When the key is pressed, the visual display will show the LEDs red. The number of LEDs lit , indicates _ level
(See Fig.4). level one (lowest sensitivity)is shown by the leftmost LED. Counting from left, levels 2 through 7 are
indicated by the corre-
sponding number of red LEDs; i.e. level 7 is shown by all LEDs lit . 2.Pressing the SENSITIVITY ↑ or SENSITIVITY ↑
key will change the sensitivity.
The keys can be pressed intermittently to change levels one at a time , or held
down to move quickly through the levels. 3.Each time the level is increased (or decreased), the relative sensitivity
is doubled (or halved).
In other words, level 2 is twice as sensitive as level 1, level 3.4 times as sensitive, etc... This allows sensitivity to
be increased as much as 64 times !
Alarm indications The TSCE-J1 features 18 alarm levels. This permits a clear indi- cation of relative leak size and
strength. The progressive indicators can be used to home-in on a leak as the increasing alarm levels indicate that
the source (highest concentration) is being approached. Each level is indicated by additional LEDs in one of three
colors ,Red,Green or Orange (See Fig 5).