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(3) LCD display:
A "Supertwist" liquid crystal
display (LCD) meter allows display of readings,
messages, and other information.
(4) Alarm lights:
Four LED (light emitting diode)
alarm lights provide a visual indication of alarm
state. Each light is dedicated to a single
channel of detection, and will emit a bright red
light when a sensor alarm level is exceeded.
One of the alarm light assemblies also includes
a photo-sensor used to monitor the level of
background illumination. An automatically-
activated backlight brightens the meter display
whenever the instrument is taken into a dark
area.
(5) On / Off "mode" button:
The large black push-
button is called the "mode" button. It is used to
turn the PhD Ultra on and off and to control
most other operations, including the automatic
calibration adjustment.
(6) Sensor compartment cover:
The sensors are
protected by a vented sensor compartment
cover. Its own protective filter cap individually
protects each sensor. A water-resistant PVC
gasket and inner-liner protect the instrument
against leakage or exposure to liquids.
(7) Audible alarm orifice:
A cylindrical orifice
extending through the sensor compartment
cover houses the audible alarm. The waterproof
audible alarm seats directly to the PVC inner-
liner to protect the instrument against leakage or
exposure to liquids.
(8) Battery pack:
Two types of interchangeable
battery packs (rechargeable NiCad and
disposable alkaline) are available for use in the
PhD Ultra. NiCad battery packs may be
recharged while the pack is installed in the
instrument, or the battery pack may be removed
from the instrument and recharged separately.
Chapter 2 of the PhD Ultra owner's manual
covers battery replacement and charging
procedures.
(9) Battery charger connector:
A water-resistant
connector at the rear of the case is used to
connect the PhD Ultra to the “drop in” style PhD
Ultra fast charger.
(10) Bottom
surface:
A sturdy clip allows the
user to wear the PhD Ultra on a belt or other
article of clothing. Snaps are provided to hold
the PhD Ultra securely in the padded leather
weather cover.
(11) Key
pad:
The key pad is located on the
back of the PhD Ultra under the belt clip. Slide
the belt clip towards the rear of the instrument to
access the four small push-buttons. The key
pad consists of, four buttons labeled “+”, “-”,
“CAL”, and "ALM”. These buttons are normally
only used during set-up and other programming
procedures.
Use of these push buttons is reserved for
authorized personnel.
1.11 PhD Ultra accessories
Each PhD Ultra is delivered in a foam lined box
containing the PhD Ultra detector, padded leather
weather cover, carrying strap, sample draw /
calibration adopter, hand-aspirated sample-draw kit
(with 10 feet of sample draw tubing), 2 feet of
additional tubing for use during calibration,
reference manual, quick reference card, and
comprehensive training video.
The sample draw kit comprises a slip-on sample
draw / calibration adapter, squeeze bulb, sample
probe, replacement sample probe filters, and ten
feet of tubing.
1.11.1 “Alkaline” PhD Ultra detectors
If the PhD Ultra has been purchased as an “alkaline”
instrument the standard accessories also include an
alkaline battery pack and a set of 3 disposable AA
alkaline batteries.
1.11.2 “NiCad” PhD Ultra detectors
If the PhD Ultra has been purchased as a “NiCad”
instrument the standard accessories additionally
include a NiCad battery pack, slip in PhD Ultra fast
charger, as well as a spare alkaline battery pack and
set of disposable batteries.
1.11 PhD Ultra kits
PhD Ultra detectors may also be purchased as part
of complete kits.
1.11.1 PhD Ultra Confined Space Kits
Besides the standard accessories included with
every PhD Ultra, Confined Space Kits also include
calibration fittings, regulator, one cylinder of each of
the appropriate calibration gases and foam lined
waterproof carrying case for the instrument,
calibration materials and other accessories.
Cylinders used in Confined Space Kits contain
either 58 or 103 liters depending on the specific
mixture of gas.
1.11.2 PhD Ultra Value Packs
It is also possible to order the PhD Ultra configured
as a “Value Pack”. The Value Pack comprises an
alkaline PhD Ultra, all standard accessories, 34 liter
cylinder of all-in-one calibration gas, fixed flow rate
regulator, and foam lined carrying case.
