10
Preset Alarm Limits & Calibration
The instrument is factory calibrated with standard calibration gas, and is programmed with the
following default alarm limits:
Cal Gas
Cal Span
unit
Low
High
TWA
STEL
Benzene
5
ppm
0.5
2.5
0.5
2.5
Isobutylene
10
ppm
50
100
10
25
Alarm limits and calibration parameters can be adjusted in Configuration Mode as desired for
particular testing purposes and applications.
Testing The Alarms
The alarm can be tested whenever the main (Reading) display is shown. Press the Right key, and the
audible and visible alarms are tested.
Backlight
The LCD display is equipped with an LED backlight to assist in reading the display under poor
lighting conditions. Background lights can be turned on automatically under poor light condition
and
be set in a variety of ways. We can choose from the settings menu under Config Mode or
through mPower Suite.
Datalogging
During datalogging, the instrument displays a disk icon to indicate that datalogging is enabled. The
default status is to have datalogging on, at 60-second intervals, which allows up to one year of data
storage.
The instrument stores the measured gas concentration at the end of every sample interval (when
datalogging is enabled). In addition, the following information is stored: user ID, site ID, serial
number, last calibration date, and alarm limits. All data are retained (even after the unit is turned
off) in non-volatile memory so that it can be down-loaded at a later time to a PC. Stored data are
organized into ‘events’, with a new event created each time the instrument is turned on, or a
configuration parameter is changed, or datalogging is interrupted.
After an event is recorded, the unit records a shorter form of the data. When transferred to a PC
running mPower Suite, these data are arranged with a sample number, time, date, gas concentration.
Man Down
Settings are available for On/Off depending on the user’s requirement.
The Man Down Alarm is a critical and potentially lifesaving safety feature of the NEO. Its function
is based on the premise that if the instrument is motionless when it is not supposed to be, its user
may be in distress. If that is the case, the NEO not only goes into alarm locally on the instrument,
but also remotely, over a wireless network, to notify people in the vicinity, as well as remote safety
officers at a command center, that a person is down, so that help can be dispatched quickly.
Note:
Remote notification requires wireless connection to a network.
Wireless
When NEO is equipped with wireless capability, it is set up through the wireless sub-menu.
