Bacharach H-SEM Instruction - page 10
Operation
H-SEM
6
Instruction 3015-4584
PURGE indicates when the monitor is resetting its infrared detector to a
baseline of 0 ppm using the air stored in the internal purge-air bag. The
purge cycle runs for 10 seconds.
The monitor will operate approximately 40 minutes before the purge-air bag
needs refilling. When the message "PURGE AIR EMPTY" appears, take the
monitor to a clean, fresh-air environment and then press the ENTER
button to refill the bag.
If the detected gas level exceeds the preset gas-alarm point, the unit will respond by turning ON the front
panel ALARM (red) light. If the AUDALRM function is activated (Page 8), the audible alarm will also
turn ON. Pressing the front panel SILENCE button turns OFF the audible alarm, but the ALARM light
will continue to flash as long as the detected gas level is above the alarm point. The audible alarm will
reactivate if the gas-alarm condition is not cleared within the time period set by the SILENCE
function (Page 9).
If a system fault occurs (see Fault Code list on Page 11), the monitor responds by turning ON the front
panel FAULT (yellow) light. If the AUDALRM function is activated (Page 8), the audible alarm will also
turn ON. Pressing the front panel SILENCE button turns OFF the audible alarm, but the FAULT light
will continue to flash as long as the fault is present. The audible alarm will reactivate if the fault condition
is not cleared within the time period set by the SILENCE function (Page 9). Both the FAULT light and
audible alarm will automatically turn OFF after the cause of the fault has been eliminated.
A log of the last 30 fault events can be viewed using the monitor’s FAULTS function (Page 9).
3.4 Battery – Testing and Charging
3.4.1 Testing the Battery
The monitor is powered by a rechargeable battery pack whose charge
state can be checked by pressing its TEST button and observing the
number of LEDs that light. A fully charged battery pack will power
the monitor for 8-12 hours.
A red flashing LED indicates that the battery pack needs to be
charged.
3.4.2 Charging the Battery
The battery pack can be recharged at any time, regardless of the battery’s current charge state.
1. Plug the charger’s AC line cord into any convenient 110/220 VAC, 50/60 Hz outlet.
2. Plug the charger’s output connector into the charge jack of the battery pack. For your convenience,
a battery-charge cable is connected to the battery’s charge jack. This cable provides a battery-charge
connector at the top of the soft carrying case, thus allowing the battery pack to remain inside the soft
carrying case during charging.
3. Observe the following:
• The charger’s power indicator lights red while the battery pack is being charged.
• The charger’s power indicator lights green when charging is complete.
• Charging time is 3 to 4 hours for a fully discharged battery pack.
PURGE 00020pk
10ppm R134A
PURGE AIR EMPTY