Figure 4-1
- Magnetic Switches
16 • MRLDS-450 Refrigerant Gas Detection I&O Manual
026-1316 Rev 0
Switch locations above are referred to in this document as
MAG#1
and
MAG#2
.
Depending on the duration the switch is held, a short “tap” or long “hold” will be
detected.
• To carry out a tap function, tap the relevant switch location for one (1) second, until a
single “chirp” is heard and remove the wand to confirm a “tap.”
• To carry out a hold function, do not remove the magnetic wand after the first “chirp”
but continue to hold for more than five (5) seconds, until a double “chirp” is heard,
and remove wand to confirm a “hold.” If either switch is held for more than 30
seconds, a stuck switch fault will be indicated.
• To interact with the instrument without use of the magnetic wand, two internal push
button tactile switches may be used. Remove the lid without removing the ribbon
cable to access. Internal switches
TACT#1
and
TACT#2
mirror the functions of
MAG#1
and
MAG#2
.
The function of each switch depends on the current state of the instrument. Refer to
for switch functions in each instrument state.
