PCE Instruments PCE-DPM 3 Users guide

© PCE Instruments

PCE-DPM 3 Dew Point Thermometer

User Manual

User manuals in various languages (français,

italiano, español, português, nederlands, türk, polski,

русский, 中文) can be found by using our

product search on: www.pce-instruments.com

Last change: 6 October 2020

v1.0

English

Contents

1 Safety notes ........................................................................................... 1

2 Specifications ........................................................................................ 2

3 Device description ................................................................................ 3

3.1 Keyboard description ........................................................................................................ 4

4 Measurement window ........................................................................... 4

5 Main menu and symbols ...................................................................... 5

5.1 Functions ......................................................................................................................... 5

5.2 Recording function ........................................................................................................... 6

5.3 Display settings ................................................................................................................ 7

5.4 Environmental parameters/ measurement settings ........................................................... 8

5.5 Further settings ................................................................ ................................................ 9

6 Contact ............................................................................................... 10

7 Disposal ............................................................................................... 10

© PCE Instruments

© PCE Instruments

1

1 Safety notes

Please read this manual carefully and completely before you use the device for the first time. The
device may only be used by qualified personnel and repaired by PCE Instruments personnel.
Damage or injuries caused by non-observance of the manual are excluded from our liability and
not covered by our warranty.

• The device must only be used as described in this instruction manual. If used otherwise,
this can cause dangerous situations for the user and damage to the meter.

• The instrument may only be used if the environmental conditions (temperature, relative

humidity, …) are within the ranges stated in the technical specifications. Do not expose

the device to extreme temperatures, direct sunlight, extreme humidity or moisture.

• Do not expose the device to shocks or strong vibrations.

• The case should only be opened by qualified PCE Instruments personnel.

• Never use the instrument when your hands are wet.

• You must not make any technical changes to the device.

• The appliance should only be cleaned with a damp cloth. Use only pH-neutral cleaner,

no abrasives or solvents.

• The device must only be used with accessories from PCE Instruments or equivalent.

• Before each use, inspect the case for visible damage. If any damage is visible, do not

use the device.

• Do not use the instrument in explosive atmospheres.

• The measurement range as stated in the specifications must not be exceeded under

any circumstances.

• Non-observance of the safety notes can cause damage to the device and injuries to
the user.

We do not assume liability for printing errors or any other mistakes in this manual.
We expressly point to our general guarantee terms which can be found in our general terms of

business.
If you have any questions please contact PCE Instruments. The contact details can be found at

the end of this manual.

© PCE Instruments

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2 Specifications

Function

Measurement
range

Resolution

Accuracy at 20 °C / 68 °F

Temperature

-10 ... 60 °C
(+14 ... 140 °F)

0.01 °C
(0.018 °F)

-10 ... 50 °C: ±0.3 °C
(+14 ... 122 °F: ±0.54 °F)

Relative
humidity

0 ... 100 %

0.01 %

<5 %: ±(0.025 % + 17.5 % of VAT )
>5 %: ±(1 % + 5 % of VAT )
>15 %: ±(2 % + 3 % of VAT)

Dew point

-50 ... 30 °C
(-58 ... 86 °F)

0.01 °C
(0.018 °F)

-40 ... 20 °C: ±2 °C

-50 ... -40 °C ±2.5 °C

H2O

40 ... 20.000 ppm

1 ppm

±(7.3 ppm + 8.3 %)

The accuracy of the dew point is based on an ambient temperature of
16 ... 25 °C / 61 ... 77°F

Further specifications

Environmental conditions

-10 ... 60 °C (14 ... 140 °F)
0 ... 20 bar (absolute)

Response time at:

0.2 m/s, 1 bar, 20 °C (68 °F), 63 % RH [90
%].

0 ... 40 °C (-40 ... 32 °F): 20 s [120 s]

-40 ... 0 °C (-40 ... 32 °F): 10 s [20 s]
Data memory

for approx. 50.000 measuring points

Adjustable storage rates

10 seconds
1, 5, 10, 20, minutes

Adjustable recording time

1, 5, 12, 24, 48 hours

File format

CSV

Cable length

approx. 1.5 m

Thread

G1/2 "

Thread length

1.2 cm

Probe length

5.2 cm

Probe width

1.2 cm

Display

Ø5.9 cm LCD

Power supply - battery

3.7 V, 3000 mAh

Power supply – mains adaptor

Primary: 100 ... 240 VAC, 0.25 A
Secondary: 5 VDC, 1 A

Interface / mains connection

via micro USB

Weight

approx. 610 g

© PCE Instruments

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3 Device description

No.

Description

1

Display

2

Back key

3

On/off switch,
hold key

4

Arrow left key

5

Interface 1 (no
function)

6

Micro USB
interface

7

Enter key

8

Arrow up key

9

Arrow right key

10

Arrow down key

11

Interface 2 for
connecting the
probe

12

G1/2''
connection
thread

13

Handle of the
probe

© PCE Instruments

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3.1 Keyboard description

No.

Description

Function

1

Back key

Go back one menu level

2

On/off switch, hold key

Press and hold the key to switch the meter on and off.
Press the key briefly once to freeze the display.

3

Arrow keys up and down

Navigating in the menu / changing parameters

4

Enter key

Confirming an entry / entering the menu

5

Arrow keys left and right

Navigating in the menu / changing parameters

4 Measurement window

Use the arrow keys to change the appearance of the measurement window. Two different
versions are available.

In addition, you can hold the currently displayed values with the hold key and save them with the
enter key (4) according to your preference. To exit hold mode, press the back key (1). Then press
the back key (1) to view the saved values in the measurement window.

© PCE Instruments

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5 Main menu and symbols

Open the main menu by pressing the enter key.
Select the desired menu symbol with the left and right keys or return with the left function key.

5.1 Functions

In the “Functions” setting on the left, you can make changes to the alarm functions. Select the
item “Setting” with the left or right key.
Alarm settings: Select between Td/f (dew point), T (temperature) or RH (relative humidity) with
the enter key.

Setting the upper limit value:

Use the arrow down key to select the item “High Limit” and then press the enter key. Now you
can enter a value with the up and down keys and confirm it by pressing the enter key again.

Setting the lower limit value:

Use the arrow down key to go to the item "Low Limit" and then press the enter key. Now you can
enter a value with the up and down keys and confirm it by pressing the enter key again.

Alarm on/off:

Use the arrow keys to select On/Off and press the enter key to activate the alarm. If the measured
value exceeds the high limit value or falls below the low limit value, the bell symbol appears at
the top and an acoustic signal can be heard. Press the enter key again to deactivate the alarm.

© PCE Instruments

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Connect computer:

Select this item if you want to transfer the data to a computer. Do not leave this menu item
during the transfer. The data is displayed in an Excel chart.

5.2 Recording function

To save the data of the measuring device, select the menu item “Recording” with the left or right
arrow key. Now you can activate or deactivate data saving with the enter key.
Recording interval ("Record gap"): 10 s, 1 min, 5 min, 10 min, 20 min selectable
Record Time: 1 hour, 5 hours, 10 hours, 12 hours, 24 hours, 48 hours
The meter can save up to 32 files. One file contains 1000 data records. The capacity is therefore
32 x 1000 = 32000 records.
Note: If it is necessary to record for more than 6 hours, it is recommended to connect the
instrument to a power supply to prevent power-related failure of the instrument.
The recorded data is saved in CSV format and can therefore be easily opened on a terminal
device with Excel.
Attention: Make sure to save the data to your computer.

Display data: By means of the menu item "View DataFile", you can open and display the CSV
data file via the device.

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To view the saved data, press the right or left key. To view the next or previous data, press the
up/down arrow keys to scroll through the data in steps of ten.

5.3 Display settings

In the display setting, you can select parameters. The temperature T is permanently selected and
cannot be deselected. You can select or deselect all other parameters as you wish with the enter
key.
Attention: You can select a maximum of two parameters. If you want to select a new parameter,
you must first remove the other parameter.
The parameters can also be changed with the on/off key or the hold key. (For T d/f - dew point,
for example, you can switch between Fahrenheit and Celsius).

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5.4 Environmental parameters/ measurement settings

Can be selected to adjust the ambient pressure P of the probe and the molar mass of the gas
measured in the probe.

5.4.1 Setting the probe pressure

Here you can set the pressure value P of the measured gas and the corresponding unit bara,
barg, psia or psig. Change the value and select the unit by pressing the arrow up or down keys.

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5.4.2 Adjust molar mass

The molar mass of air is 28.96 g/mol, and the molar mass of SF6 gas is 146.05 g/mol. When
measuring SF6 gas, for example, ppmw M must be set to 146.05 g/mol. Change the value and
select the unit by pressing the arrow up or down keys.

5.4.3 Cleaning

Select the "Cleaning" option and press the enter key. The probe will perform the cleaning and
heat the sensor. The process takes about five to ten minutes.

5.5 Further settings

1 Language setting: Chinese and English.
2 Automatic power-off: off, 10 min, 15 min, 20 min, 25 min, 30 min
3 Brightness: Press the enter key to change the value. 10 different brightness levels can be
selected.

Set the time and date, increase or decrease the number with the up or down keys and confirm
your entry with the enter key.

The key sound can be enabled or disabled.

6 Contact

If you have any questions, suggestions or technical problems, please do not hesitate to contact

us. You will find the relevant contact information at the end of this user manual.

7 Disposal

For the disposal of batteries in the EU, the 2006/66/EC directive of the European Parliament
applies. Due to the contained pollutants, batteries must not be disposed of as household waste.
They must be given to collection points designed for that purpose.

In order to comply with the EU directive 2012/19/EU we take our devices back. We either re-use
them or give them to a recycling company which disposes of the devices in line with law.

For countries outside the EU, batteries and devices should be disposed of in accordance with
your local waste regulations.

If you have any questions, please contact PCE Instruments.

© PCE Instruments

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© PCE Instruments

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PCE Instruments contact information

Germany France Spain

PCE Deutschland GmbH PCE Instruments France EURL PCE Ibérica S.L.
Im Langel 4 23, rue de Strasbourg Calle Mayor, 53
D-59872 Meschede 67250 Soultz-Sous-Forets 02500 Tobarra (Albacete)
Deutschland France España
Tel.: [phone] Téléphone: [phone] Tel. : [phone]
Fax: [phone] Numéro de fax: [phone] Fax: [phone]
[email protected] [email protected] [email protected]
www.pce-instruments.com/deutsch www.pce-instruments.com/french www.pce-instruments.com/espanol

United Kingdom Italy Turkey

PCE Instruments UK Ltd PCE Italia s.r.l. PCE Teknik Cihazları Ltd.Şti.
Unit 11 Southpoint Business Park Via Pesciatina 878 / B-Interno 6 Halkalı Merkez Mah.
Ensign Way, Southampton 55010 Loc. Gragnano Pehlivan Sok. No.6/C
Hampshire Capannori (Lucca) 34303 Küçükçekmece - İstanbul
United Kingdom, SO31 4RF Italia Türkiye
Tel: [phone] Telefono: [phone] Tel: [phone]
Fax: [phone] Fax: [phone] Faks: 0212 705 53 93
[email protected] [email protected] [email protected]
www.pce-instruments.com/english www.pce-instruments.com/italiano www.pce-instruments.com/turkish

The Netherlands China Hong Kong

PCE Brookhuis B.V. PCE (Beijing) Technology Co., Limited PCE Instruments HK Ltd.
Institutenweg 15 1519 Room, 6 Building Unit J, 21/F., COS Centre
7521 PH Enschede Zhong Ang Times Plaza 56 Tsun Yip Street
Nederland No. 9 Mentougou Road, Tou Gou District Kwun Tong
Telefoon: [phone] 102300 Beijing, China Kowloon, Hong Kong
[email protected] Tel: [phone] Tel: [phone]
www.pce-instruments.com/dutch [email protected] [email protected]
www.pce-instruments.cn www.pce-instruments.cn

United States of America

PCE Americas Inc.
1201 Jupiter Park Drive, Suite 8
Jupiter / Palm Beach
33458 FL
USA
Tel: [phone]
Fax: [phone]
[email protected]
www.pce-instruments.com/us