PULSAR™ Oxygen Detector
Instructions for Use and Maintenance
seconds by pushing the TEST button or
!
WARNING
it will automatically clear once the
oxygen level exceeds the setpoint
Failure to follow can result in serious personal
(oxygen depletion) or falls below the
injury or death.
alarm setpoint (oxygen enrichment)
Do not use this detector to sample for oxygen in
2. If the gas concentration reaches or falls
gases other than air.
below the second depletion alarm setpoint
(depletion-depletion configuration) or
Perform an alarm function check and a response
reaches or falls below the depletion alarm
check before each day's use. If the instrument
setpoint (enrichment-depletion
fails either check, the instrument must be taken
configuration):
out of service.
· The instrument will display and flash
Recheck response and alarm function if the
"Hi" on the LCD and enter a high alarm
instrument is subjected to physical shock.
sequence.
The instrument is factory sealed and contains
· The high alarm can be silenced for five
no user serviceable parts. Substitution of
seconds by pressing the TEST button or
components may impair intrinsic safety.
it will automatically clear once the
oxygen level exceeds the setpoint
This unit contains a lithium battery; dispose of
Refer to instrument markings for factory-set
properly.
alarm setpoints.
Do not rely on the vibrating alarm (if equipped) in
cold tempuratures (<0°C) as the vibrating alarm
PULSAR Calibration
may cease to operate under these conditions.
False oxygen alarms can occur due to changes in
!
barometric pressure (altitude changes) or
CAUTION
extreme changes in ambient temperature. The
PULSAR Detector is equipped with a feature to
To prevent sensor damage, store the instrument
allow calibration at pressure and/or temperature
under the following conditions:
of use. Be sure that the instrument is in known
Intermittent
Optimal Storage
fresh air before performing a
(24 hours)
Temperature
calibration.
To calibrate the oxygen sensor:
-20 to +4°C
4 to 32°C
(-4 to +40°F)
(40 to 90°F)
1. Press and hold the TEST button for five seconds
32 to 50°C
· the instrument displays "rc"
(90 to 120°F)
2. Release the TEST button
3. Immediately push and hold the TEST button
Activating the PULSAR Detector
again for five seconds
4. The display will count down from 5 to 1
The unit must be activated before it can be used
5. The instrument will calibrate the oxygen
to warn the user of a potentially hazardous
sensor while "rc" flashes on display
condition.
6. "dn" will be displayed to indicate a
· To activate the personal protection
successful calibration
instrument, press and hold the TEST button
7. The instrument will return to normal mode.
for 3 seconds. The instrument will indicate
If the oxygen sensor cannot be calibrated, "Er"
the initialization sequence by counting up 1,
and "6" will alternately flash on the display. The
2, 3 ...on the display.
instrument must be removed from service.
· The instrument will then perform a 99
second activation countdown.
PULSAR Function Checks
· Calibrate instrument in fresh air immediately
Confidence Flash
after activation to adjust to ambient
conditions.
The alarm lights will flash approximately every
30 seconds to indicate that the PULSAR Detector
Once activated, the instrument will remain active
is operating.
until the months remaining counter reaches 0 or
a low battery error occurs.
Alarm Test (Check before each day's use)
If the TEST button is momentarily pressed, a
PULSAR Alarms
one-second test of the alarms must occur. This
test includes testing the:
There are two alarm setpoints in the instrument.
Refer to your instrument for your factory-set
· display
alarm points. The instrument is factory
· alarm lights
configured with EITHER one oxygen enrichment
· vibrator (if installed)
and one oxygen depletion alarm OR two oxygen
· horn
depletion alarms.
Time Remaining (Check before each
1. If the gas concentration reaches or falls
day's use)
below the first depletion alarm setpoint
(depletion-depletion configuration) or
After the alarm test, the PULSAR Detector's
reaches and exceeds the enrichment alarm
remaining operating time (in months) will be
setpoint (enrichment-depletion configuration):
displayed for nine seconds.
· the instrument will display and flash
· The months remaining (24 to 0 months).
"Lo" on the LCD and enter a low alarm
· When the months remaining reaches zero,
sequence.
the instrument must be taken out of
· The low alarm can be silenced for five
service. The instrument will remain active
© Mine Safety Appliances Company 2005
(L) REV. 4
until the TEST button is pushed three more
times or until four days have elapsed,
whichever comes first. After this, the
instrument's alarm LEDs will light and the
display will alternate between "Er" and "10".
The instrument will no longer warn of
hazardous gas concentrations and must be
removed from service.
The alarm can be silenced by pushing the
TEST button.
The time remaining display will decrement faster
if the instrument experiences alarms or the test
feature is used more than approximately two
minutes per day.
Response Check (Check before each day's use)
To ensure proper operation of the PULSAR
Detector, it must be gas checked daily. To
perform a response check:
· Connect one end of the calibration tubing
to the response check cylinder and the
other end to the sensor inlet on the PULSAR
Detector.
· Turn on the cylinder valve. The display must
indicate an alarm and the alarm lights, horn
and vibrator (if installed) must activate.
Remove the gas, close the valve and reset
the alarm.
Gas Reading Display
Following the operating time remaining, the
current oxygen reading in %O2 is displayed in
the following format:
· "rd" will be displayed for 1 second followed by
· The oxygen reading for 5 seconds
If reading is >1.0% O2, for example,
o
20.8% O2, the "20", "8" will toggle on
the LCD
If reading is <1.0% O2, for example, 0.5%
o
O2, then "","5" will toggle on the LCD
Software Version
To view the software revision of the instrument,
press and hold the TEST button for three seconds
during the months remaining period. The instru-
ment will display "rE" for 0.5 seconds, followed by
the revision of the software (1-99) for 1.5 seconds.
Low Battery
Should the PULSAR Detector's battery become
too low to operate the instrument:
· the alarm lights will light
· the horn will sound
· the display will alternate between "Er" and "11".
The battery has sufficient capacity to power the
instrument for two years with approximately
two minutes of alarms per day. Alarms beyond
two minutes per day, or excessive use of the Test
feature, may cause the battery alarm to occur
sooner than normal.
The alarm can be silenced by pushing the TEST
button.
Optional Clips
The PULSAR Detector is supplied with two
mounting clips. When choosing a clip, be sure
that the inlet to the sensor is not covered or
obscured by clothing, paper or anything else
that may prevent the sensor from being fully
exposed to the atmosphere being monitored.
P.O. Box 427, Pittsburgh, PA 15230
PART NUMBER 10028554
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