DeFelsko PosiTector DPM User manual

Quick Guide . 3.6
PosiTector®
DPM
Dew Point Meter

1
Introduction
Introduction
The PosiTector Dew Point Meter (DPM) is a hand-held,
electronic instrument that measures, calculates and records
climatic conditions, quickly and accurately. It consists of a body
(Standard or Advanced) and probe (pg. 2).
This Quick uide summarizes the basic functions of the age.
Download the full instruction manual at:
www.defelsko.com/manuals.
The PosiTector DPM powers-up when the center navigation
button is pressed. Readings are updated automatically each
second. To preserve battery life, the instrument powers down after
approximately 5 minutes of no activity. All settings are retained.
Quick Start
Quick Start
1.Remove the protective rubber cap from the probe.
2.Power-up age by pressing the center navigation button.
RH - Relative Humidity (measured)
Ta - Air Temperature (measured)
Ts - Surface Temperature (measured)
Td - Dew Point (calculated)
Ts-Td - Surface minus Dew Point
Temperature (calculated)
Tw - Wet Bulb Temperature (calculated)
(A vance mo els only)
V - Wind Velocity (DPM-A mo el only)
A typical instrument screen is shown below, consisting of RH, Ta,
Ts, Td, and Ts-Td readings. This group of readings is referred to as
a dataset.

When powered-up, the PosiTector automatically
determines which probe is attached and does a self-
check.
To disconnect a probe from a body, slide the plastic
probe connector horizontally (in the direction of the
arrow) away from the body. Reverse these steps to
attach a different probe. It is not necessary to power-
down the age when switching probes.
2
The PosiTector body accepts a wide variety of probe types
including magnetic, eddy current and ultrasonic coating thickness,
surface profile, hardness, salt contamination and ultrasonic wall
thickness probes. See www.defelsko.com/probes
Probes
Probes
The Pause/Resume (+) button stops values from automatically
updating to allow for closer examination of the relationship
between the values or to allow time to manually record the entire
dataset. Press (+) again to resume.
Menu peration
Menu peration
Scroll through
Trend Charts
(A vance only)
Access the Menu
Pause / Resume
Restore brightness
after dimming
Button Functions- Normal peration
age functions are menu controlled. To access the Menu, power-up
the age, then press the center navigation button.
To navigate, use the Up and Down buttons to scroll vertically and
to SELECT.
Press the (+)button to switch
pages in a multipage menu.
Press the (
- )button to return to
the previous menu or page.
Select Exit to exit from any menu.
Previous Page
(Exit) Up Next Page
Access the Menu
(Center/Select)
Down

3
Standard models will alert the user when the surface temperature
is less than 3°C (5°F) above the dew point temperature. Enable by
selecting the tick box.
The PosiTector DPM can automatically alert the user when
current climatic conditions exceed pre-set values. When selected,
the Alarm icon is displayed at the the top of the screen.
Ad anced models allow the user to set up custom alarm
conditions for each reading in a dataset. When connected to WiFi,
Advanced models can also send alerts via email.
Alarm Mode
Alarm Mode
Alarm
PosiTector DPM probes:
PosiTector DPM / DPM-IR
Integral Surface Temperature Sensor
PosiTector DPM-S
Magnetic Surface Temperature Sensor
PosiTector DPM-A Anemometer
Integral Surface Temperature Sensor
PosiTector DPM-D
Cabled probe with NPT threads
K-Type
Connector
Surface
Temperature
Win
Velocity
Air Temperature &
Relative Humi ity
Surface
Temperature / IR
Sensor
Surface
Temperature
Probe also accepts other K-Type
thermocouple sensors (optional)
1/2” NPT
Threa s
Sintered Metal Tip
(protects sensor)
Air Temperature &
Relative Humi ity
Air Temperature &
Relative Humi ity

4
Setup Menu
Setup Menu
Reset
Reset (menu reset) restores factory settings and returns the age
to a known condition. The following occurs:
- All batches and stored datasets, batch names and screen
captures are erased.
- Menu settings are returned to the following:
Memory = OFF
Auto Log = OFF
Trend Chart = None
Auto Dim = ON
Bluetooth & Stream = OFF
WiFi & Access Point = OFF
Display = None
Anemometer = ON
Units
Converts the displayed units for temperature and wind velocity.
Temperature (all mo els): Celsius (°C) or Fahrenheit (°F)
Velocity (DPM-A only): m/s, ft/s, km/h, mph, and kn.
Perform a more thorough Hard Reset as follows:
1 Power down the age and wait 5 seconds.
2 Simultaneously press and hold the (+) and center
buttons until the Reset symbol appears.
This returns the age to a known, “out-of-the-box” condition.
It performs the same function as a menu Reset with the addition of:
- Bluetooth Pairing info is cleared.
- Alarm settings are set to defaults.
- Menu settings are returned to the following:
NOTE:
Units (temperature) = Celsius
Flip Display = Normal
Auto Sync .net = ON
Alarms = OFF
Alarm Sound = OFF
Sound = ON
Language = English
Units (velocity) = m/s
Battery Type = Alkaline
Backlight = Normal
Bluetooth Smart = OFF
USB Drive= ON
Auto Log Interval = 5 min
Wet Bulb = OFF
Date, Time and WiFi settings are not affected by either Reset.

Wet Bulb
When selected, the wet bulb temperature (Tw) is displayed on the
main screen. It is calculated from Ta and RH using an air pressure
of 1.0 atmospheres (1013 mbar). Variations of Tw at other
pressures could be greater than ±1°C (±2°F).
(A vance mo els only)
Displays a real-time graph of the readings over the last three
minutes. Use Trend Charts to monitor short-term environmental
changes and spot trends.
Press the Up button to scroll through the trend charts.
Trend Chart
Shortcut:
(A vance mo els only)
Anemometer (PosiTector DPM-A probes only)
When Enabled , the PosiTector DPM-A
will display wind velocity (v) in the selected
unit of measure (see Units pg. 4).
NOTE:
Sli e cover own to
expose hot wire
anemometer
Dew point (Td) and surface temperature (Ts) are not
displayed when the Anemometer is enabled.
Hot Wire Anemometer
Surface Temperature
Air Temperature &
Relative Humi ity
5

6
Sets the emissivity ratio for the PosiTector DPM-IR infrared
temperature sensor.
Select from a User Entered Value or one of the following preset
options:
- Aluminum (rough) = 0.07 - Plastics = 0.94
- Zinc (Galvanized) = 0.25 - Steel ( xidized) = 0.95
- Concrete = 0.54 - Wood = 0.95
- Paint = 0.96
Emissivity (PosiTector DPM-IR Mo els Only)
Selects the type of batteries used in the age from a choice of
“Alkaline”, “Lithium” or “NiMH” (Nickel-metal hydride
rechargeable). If NiMH is selected, the gage will trickle charge the
batteries while connected via USB to a PC or optional AC charger.
The battery state indicator icon is calibrated for the selected
battery type. No damage will occur if the wrong battery type is
selected.
Battery Type

7
Ad anced models store 100,000 datasets in up to 1,000 batches.
“New Batch” closes any open batch and creates a new batch name
using the lowest available number. New batch names are date
stamped when they are created.
Auto Log Mode
Auto Log Mode
Memory Management
Memory Management
The PosiTector DPM has internal memory storage for recording
measurement datasets. Stored datasets can be reviewed on-
screen or accessed via computers, tablets and smart phones.
Datasets are date and time-stamped. Datasets can be stored
manually (using the (+) button), or automatically using the Auto
Log mode.
The symbol appears when the age is set to store datasets.
Standard models store up to 2,500 datasets in one batch.
The PosiTector DPM can automatically display and record
datasets at user selected time intervals. When selected, the Auto
Log icon will appear on the display, with a countdown timer
until the next reading. Connect the instrument to a USB power
source for long-term use.
Turn on instrument/
Cancel Auto Log
mode
Scroll through
display modes
(A vance only)
Screen Capture
Press both (-)(+) buttons at any time to capture and save an image
copy of the current display. The last 10 screen captures are stored
in memory and can be accessed when connected to a computer
(see PosiSoft USB Drive pg. 8).
Scroll through display
modes (A vance only)
Delete last reading
Access the Menu
Store a dataset in memory
(A vance only)
Restore brightness after
dimming

8
Standard models remain powered-up while in auto log mode. The
instrument will take readings for 40-50 hours on a set of alkaline
batteries, depending on the frequency of measurements.
Ad anced models power down between readings to conserve
batteries. At each interval, the instrument will wake up, take a
reading, sync to PosiSoft.net (if configured) and power down. The
instrument can record approximately 8,000 datasets while in this
mode using alkaline batteries, and can be configured to Auto
Batch at daily, weekly, and monthly intervals.
-Auto Log continues recording until the instrument loses power or
the user turns off Auto Log mode. Stored datasets will remain in
memory until full, then the oldest dataset or batch will be overwrit-
ten to allow space for the next dataset.
-To conserve battery life, readings update only at the Log Interval.
The last recorded readings will remain on the display until the
next dataset has been stored.
-It is recommended that fresh alkaline batteries be installed prior
to an extended Auto Log if not connected to continuous power.
NOTES:
Accessing Stored Measurements Data
Accessing Stored Measurements Data
DeFelsko offers the following free solutions for viewing, analyzing
and reporting data:
PosiSoft USB Drive - Connect the age to a PC/Mac using the
supplied USB cable. View and print readings and graphs using
universal PC/Mac web browsers or file explorers. No software or
internet connection required. USB Drive must be selected in the
age’s “Connect > USB” menu (pg. 8).
PosiSoft Desktop - Powerful desktop software (PC/Mac) for
downloading, viewing, printing and storing measurement data.
Includes a customizable, templated PDF Report enerator. No
internet connection required.
PosiSoft.net - Web-based application offering secure, centralized
storage of measurement data. Access your data from any web-
connected device.
PosiTector App - (A vance mo els only, s/n 784000+) App for
compatible iOS and Android smart devices. Permits users to
create, save and share professional PDF reports. Add images and
notes using the smart device’s camera and keyboard.

9
The above WiFi, USB and Bluetooth menus contain a Sync
.net Now option. When selected, the age immediately
synchronizes stored measurement data via its respective
communication method (internet connection required).
Alternatively, select Auto Sync .net from within the USB connect
menu to automatically synchroniz e upon connection to a PC.
Additional measurements added to memory while connected are
synchronized only when the USB cable is disconnected and
reconnected, or when the Sync .net Now option is selected.
WiFi connected gages automatically attempt synchronization
upon power-up.
Sync .net Now
Connect Menu
Connect Menu
When USB Drive is checked , the PosiTector gage uses a
USB mass storage device class which provides users with a
simple interface to retrieve stored data in a manner similar to
USB flash drives, digital cameras and digital audio players.
USB Drive is also required to import stored measurements into
PosiSoft Desktop software (pg. 8).
When connected, power is supplied through the USB
cable. The batteries are not used and the body will not
automatically power down. If rechargeable (NiMH) batteries are
installed, the instrument will trickle charge the batteries.
Allows individual datasets to be sent to a computer, printer or
compatible device as they are taken using Bluetooth wireless
technology. See www.defelsko.com/bluetooth
Bluetooth (A vance mo els only)
Allows connection to your local wireless network or mobile hot
spot. Ideal for using your network’s internet connection for
synchronizing stored measurements with PosiSoft.net (pg. 8).
See www.defelsko.com/wifi
WiFi (A vance mo els only)
NOTE:
USB
PosiSoft Desktop is required when using a USB
connection to synchronize measurements with PosiSoft.net.
NOTE:

10
Sync Batches
Select batches to flag them for synchronization to the
PosiTector App. New batches created while Bluetooth Smart is
enabled are automatically selected.
With Bluetooth Smart enabled, select Sync Batches to transfer
selected batches to the PosiTector App. This is useful when
switching between smart devices, as only datasets and batches
that have yet to be synchronized with any smart device are
synchronized automatically.
The age will perform a Hard Reset (pg. 4) after
an update. All stored measurements will be erased from memory.
Updates
Determine if a software update is available for your age.
See www.defelsko.com/update
WARNIN :
When Enabled , allows communication with a smart device
running the PosiTector App (pg. 8) via auto-pairing Bluetooth
Smart (BLE) wireless technology.
Bluetooth Smart
(A vance mo els only, serial numbers 784000 an greater)
Send Batches
Transfers selected batches to the PosiTector App (useful
when switching between devices).
The Send Batches option is visible in the menu when the age
is connected to a smart device running the PosiTector App.
If Bluetooth Smart is disabled, data from batches
selected in the Sync Batches menu are held in a queue until
communication with the PosiTector App is re-established.
NOTE:

11
Technical Data
Technical Data
Conforms to: ISO 8502-4, BS7079-B and ASTM D3276
Range Accuracy Resolution
Surface
Temp.
-40° to 80° C
80° to 190° C
-40° to 175° F
175° to 375° F
±0.5° C
±1.5° C
±1° F
±3° F
0.1° C
0.1° C
0.1° F
0.1° F
IR Surface
Temp.**
-70° to 380° C
-94° to 716° F
±1° C +
(0.01°C/°C)***
±2° F +
(0.01°F/°F)***
0.1° C
0.1° F
Air
Temp.
-40° to 80° C
-40° to 175° F
±0.5° C
±1° F
0.1° C
0.1° F
Humidity 0 to 100% ±3 % 0.1 %
Wind Speed*
0 - 20 m/s
0 - 65 ft/s
0 - 3900 fpm,
0 - 72 km/h
0 - 44 mph
0 - 38 kn
±3 %
+ least
significant
digit
0.1 m/s
0.1 ft/s
1 fpm,
0.1 km/h
0.1 mph
0.1 kn
perating Range: -40° C to +80° C -40° F to +175° F
PosiTector DPM, DPM-S, DPM-A, DPM-D, DPM-IR
*DPM-A Models Only
**DPM-IR Models Only
***At Ta = 23° C
PosiTector DPM-IR:
- Distance to Target Size Ratio (D:S) - 4:1
- Response Time: <500 milliseconds (95% resposne)
- Spectral Response: 8 - 14 µm

12
To ensure optimal performance of your PosiTector DPM,do not
obstruct the airflow near the air temperature and humidity sensors.
Keep fingers away from the sensor, as body heat can cause
incorrect readings. Allow time for the instrument to acclimate and
for the readings to stabilize when moving the instrument between
different environments.
When using the surface temperature probe, do not use excessive
downward force, and do not drag it sideways. When the instrument
is not in use, place the rubber cap over the surface temperature
sensor to prevent damage.
CAUTION:

13
www.defelsko.com
© DeFelsko Corporation USA 2018
All Rights Reserved
This manual is copyrighted with all rights reserved and may not be reproduced or transmitted, in whole
or part, by any means, without written permission from DeFelsko Corporation.
DeFelsko, PosiTector and PosiSoft are trademarks of DeFelsko Corporation registered in the U.S. and
in other countries. Other brand or product names are trademarks or registered trademarks of their
respective holders.
Every effort has been made to ensure that the information in this manual is accurate. DeFelsko is not
responsible for printing or clerical errors.
Limited Warranty, Sole Remedy
Limited Warranty, Sole Remedy
and Limited Liability
and Limited Liability
DeFelsko's sole warranty, remedy, and liability are the express
limited warranty, remedy, and limited liability that are set forth on
its website: www.defelsko.com/terms
Returning for Service
Returning for Service
Before returning the instrument for service…
1. Install new batteries in the proper alignment as shown within battery
compartment.
2. Examine the surface temperature sensor for dirt or damage.
3. If the humidity sensor is slow to respond or reading erratically, recondition
the sensor by removing the probe from the gage body and wrapping it in
a damp cloth overnight.
4. Perform a Hard Reset.(see pg. 4)
5. If issue is not resolved, Update (pg. 10) your PosiTector gage body and
re-attempt measurements.
IMP RTANT:
If you must return the age for service, please fill out and include the
Service Form located at www.defelsko.com/support with the age. Be
sure to also include the probe, your company name, company contact,
telephone number and fax number or email address.

Dew Point Meter
Guia rápida v. 3.6

El PosiTector DPM se enciende al pulsar el botón central .
Para conservar las baterías, el Medidor se apaga después de
aproximadamente 5 minutos de inactividad. Se conservarán
todas las configuraciones.
1
Introducción
Introducción
El PosiTector Dew Point Meter (DPM) es un dispositivo
electrónico portátil que mide, calcula y registra con rapidez y
precisión lecturas meteorológicas. Está formado por un cuerpo
(versiones Estándar o Avanzado) y una sonda (pág. 2).
Esta guia rápida recoge las funciones básicas del dispositivo.
Descargue el manual de instrucciones en:
www.defelsko.com/manuals.
Inicio rápido
Inicio rápido
RH - umedad relativa (medida)
Ta - Temperatura del aire (medida)
Ts - Temperatura de la superficie (medida)
Td - Temperatura de rocío (calculada)
Ts-Td - Diferencial entre la temperatura de
Superficie y punto de rocío (calculada)
Tw - Temperatura húmeda (calculada)
(sólo modelos avanzados)
V - Velocidad del viento
(solo modelos DPM-A)
A continuación puede ver una pantalla típica del equipo,
compuesto por lecturas R Ta, Ts, Td y Ts-Td. Este grupo de
lecturas se conoce como un conjunto de datos.
1.
Retire la tapa protectora de goma roja de la sonda si la lleva.
2. Encienda el Medidor pulsando el botón central .

Una vez encendido, el PosiTector determinará
automáticamente el tipo de sonda conectado y realizará
una comprobación automática.
Para desconectar una sonda de la base del PosiTector
deslíce el conector de la sonda de plástico horizontalmente
(en la dirección de la flecha) separándola de la base
PosiTector. Invierta los pasos para conectar una sonda
diferente. No es necesario apagar el medidor cuando se
cambia la sonda.
2
La base del medidor PosiTector acepta una amplia variedad de tipos
de sonda incluyendo las necesarias para medir espesor de
recubrimientos tipo magnético, de corrientes de Foucault y de
ultrasonido; sondas para perfiles de superficie, ambiental, dureza y
sondas de espesor de pared por ultrasonidos. Consulte
www.defelsko.com/probes
Sondas
Sondas
El botón Pausa / Reinicio (+) detiene el muestreo automático para facil-
itar un examen más pausado de la relación entre los valores o para dar
tiempo para registrar manualmente el conjunto de datos activos en la
pantalla. Pulse (+) de nuevo para reanudarlo.
Menú Operación
Desplazamiento por
los gráficos
de tendencia
(sólo Avanzado)
Pausa / Reinicio
Restaura el brillo
si se ha atenuado
Funciones de los botones - Funcionamiento normal
Las funciones del medidor se controlan con un menú. Para acceder
al menú encienda el medidor y pulse el botón central.
Para desplazarse utilice los botones Arriba y Abajo y para
SELECCIONAR.
Página Anterior
(Salir) Arriba Siguiente Página
Acceso al Menú
(Centro/Seleccione)
Abajo
Acceso al menú
Presione el botón (+) para cambiar
de página en el menú formado de
varias páginas.
Presione el botón (-) para regresar al
menú o página anterior.
Seleccione Salir para cerrar el menú
del medidor.

3
Los modelos Estándar alertarán al usuario cuando la temperatura de
superficial se aproxime a menos de 3°C (5°F) por encima de la
temperatura de punto de rocío. Marcar la casilla para activar.
El PosiTector DPM puede alertar automáticamente al usuario cuando
las condiciones meteorológicas excedan los valores configurados. Si
se ha seleccionado, el icono Alarma aparecerá en la parte superior
de la pantalla.
Los modelos Advanced permiten al usuario configurar condiciones
de alarma para cada parámetro de lectura en un grupo de datos.
Modo Alarma
Modo Alarma
Alarma
Sondas PosiTector DPM:
PosiTector DPM / DPM-IR
Sensor de temperatura de superficie integral PosiTector DPM-S
Sensor de temperatura de superficie magnético
PosiTector DPM-A Anemómetro
Sensor de temperatura de superficie integral PosiTector DPM-D
Sonda cableada con rosca NPT
Conector
tipo K
Temperatura
de super icie
Velocidad
del viento
Temperatura del
aire y humedad
relativa
Temperatura de
super icie / Sensor
IR
Temperatura
de super icie
La sonda también acepta otros
sensores termopar tipo K (opcional)
Roscas
NPT 1/2”
Punta de metal sinterizado
(protege el sensor)
Temperatura del
aire y humedad
relativa Temperatura del
aire y humedad
relativa