| Q. Are
there different models of PosiTector DPM to choose from? |
| A. No. There is only one but there are a number
of optional accessories to enhance the functionality of the PosiTector
DPM. |
Optional accessories
available:
- Magnetic Surface
Temperature Probe Kit – allows
the instrument and a surface temperature probe to be conveniently
attached onto steel structures for hands free recording – comes
complete with interchangeable lower sensor unit, magnetic surface
temperature probe, additional rubber holster with magnetic
clip to attach the gage body onto steel structures, PosiSoft
software with USB cable and Certificate of Calibration
- Additional
Probes – for use with Magnetic Surface Temperature
Kit only
- Hand-held Surface Temperature Probe– for
spot checking hard-to-reach surfaces
- Self-adhering
Surface Temperature Probe – sticks to solid
materials including aluminum, wood, concrete, etc.
Ideal for unattended recording.
- Liquid Temperature
Probe – general
purpose probe with stainless steel shaft
- PosiSoft
Software/USB cable accessory – downloads
stored readings to a PC
- IR Printer – battery
operated printer receives data from meter via wireless
infrared
- AC
Power Cable – provides continuous power
using any AC wall outlet
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| Q. Why
choose the PosiTector DPM over other digital offerings? |
A. The PosiTector DPM has many
advantages...
- The New ergonomic design includes Flip Display,
built-in USB port and tough Lexan display.
- The PosiTector
DPM can be converted to accept a variety of popular
K-type thermocouple probes including magnetic surface temperature
probes, hand-held and liquid temperature probes. The PosiTector DPM can
also accept all standard K-type probes from a variety of
manufacturers, making the PosiTector DPM the most
versatile tool on the market.
- Each PosiTector DPM can store 2,500 datasets
in 100 batches. Stored readings
can be viewed individually on the LCD, viewed graphically
for quick trend analysis on-site, or downloaded to a PC.
Some manufacturers instruments require additional equipment
to store readings into memory.
- Each individual stored dataset,
containing all 5 values (%RH, Ta, Ts, Td and Delta) can be
viewed on the large, easy-to-read graphics LCD, not just
the averages. This feature is important for evaluating climatic
trends especially in Data Logger Mode.
- Shock-absorbing,
protective rubber holster with belt clip and wrist strap
- Certificate of Calibration traceable to NIST included free
- DeFelsko’s
award winning customer service and repair departments
- Quality
American made
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| Q. Can
the PosiTector DPM store or print data? |
| A. Yes. Each PosiTector DPM has an
internal memory of 2,500 datasets in up to a 100 batches which
can be viewed on the LCD, printed to an IR wireless printer (option)
or downloaded to a PC using PosiSoft software (option). |
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| Q. How
is the PosiTector DPM calibrated at DeFelsko? |
| A. The PosiTector DPM is calibrated against
known conditions using NIST traceable equipment. A Certificate
of Calibration containing actual measurements is included with
every gage. |
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| Q. What
is a smart trend indicator? |
| A. Smart Trend Indicators™ identify rising,
falling or stable readings. The PosiTector DPM compares each
measurement with the average of recent values in an attempt to
provide the current direction of substantial changes. The absence
of an arrow can be taken to mean that the particular parameter
is undergoing little or no change. |
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| Q. Why
does the PosiTector DPM Magnetic Surface Temperature Probe
Kit contain a magnetism warning? |
| A. The Magnetic Surface Temperature Probe Kit
contains 2 very powerful magnets to ensure that the instrument
and sensor remain in place when attached to a steel surface.
As with all magnets, avoid contact with electronic instruments
or devices sensitive to magnetic fields such as pace makers and
coating thickness gages. Care should also be given to the storing
and shipping of any strong magnet to prevent contact with sensitive
devices . |
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| Q. Why
buy the PosiTector Dew Point Meter instead of a sling psychrometer,
surface thermometer and weather tables? |
A. The PosiTector DPM is...
- Faster – while
these devices take several minutes each to stabilize per measurement,
the PosiTector DPM displays all 5 values in mere seconds.
- Simpler – no
need for...
- counting revolutions per second in
a timed interval using de-ionized water
- using
a slide-rule calculator
- waiting minutes for a
surface thermometer to stabilize
- reading analog
scales
- looking
up values in a cross reference table
- Easier – one
handed design with a large LCD
- More Accurate – tighter
tolerances on all values. Values are no longer subject
to operator interpretation. Be aware that some temperature
gages DO NOT meet the accuracy requirement specified
by ISO 8502-4.
- Versatile – unlike
a sling psychrometer, the PosiTector Dew Point Meter
works well in cold environments. The handy Internal
Memory and Data
Logger Mode make record keeping easy. An optional
magnetic surface temperature kit allows the gage and
a surface temperature probe to be conveniently attached
onto steel structures for hands free recording.
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| Q. Why
is it important to calculate the dew point temperature? |
| A. The dew point temperature is a function of
air temperature and the relative humidity. It is the temperature
at which a volume of air must be cooled in order to reach saturation.
It is important to calculate the dew point temperature in order
to know when conditions are suitable for painting. |
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| Q. Why
is it important to calculate the difference between surface
and dew point temperatures? |
| A. According to ISO 8502-4, the surface temperature
should be at least 3° C (5° F) above the dew point. By
knowing the surface and dew point temperature, it can be established
whether or not conditions will be suitable for painting. |
