PCE Instruments PCE-310 User manual

PCE Americas Inc.

711 Commerce Way

Suite 8

Jupiter

FL-33458

USA

From outside US: +1

Tel: (561) 320-9162

Fax: (561) 320-9176

info@pce-americas.com

PCE Instruments UK Ltd.

Units 12/13

Southpoint Business Park

Ensign way

Hampshire / Southampton

United Kingdom, SO31 4RF

From outside UK: +44

Tel: (0) 2380 98703 0

Fax: (0) 2380 98703 9

info@pce-instruments.com

www.pce-instruments.com/english

www.pce-instruments.com

Manual

Version 1.1

Date of creation: 22.03.2016

Date of last change: 06.04.2016

Manual

Contents

1Introduction .............................................................................................................3

2Safety notes.............................................................................................................3

3Specifications..........................................................................................................4

3.1 Technical specifications.............................................................................................................. 4

3.2 Delivery contents........................................................................................................................ 4

4System description.................................................................................................5

5Operation.................................................................................................................6

5.1 Data hold function....................................................................................................................... 6

5.2 Dew point function...................................................................................................................... 6

5.3 Wet bulb function........................................................................................................................ 6

5.4 Ex. temperature function ............................................................................................................ 6

5.5 Min/Max function ........................................................................................................................ 7

5.6 ΔT and Δ.................................................................................................................................. 7

5.7 Auto Power Off (Sleep function)................................................................................................. 7

5.8 Low Battery................................................................................................................................. 7

6Calibration ...............................................................................................................8

7Troubleshooting......................................................................................................8

7.1 Device cannot be turned on........................................................................................................ 8

7.2 Error messages .......................................................................................................................... 8

8Disposal...................................................................................................................8

9Contact.....................................................................................................................9

9.1 PCE Instruments UK .................................................................................................................. 9

9.2 PCE Americas ............................................................................................................................ 9

Manual

1 Introduction

Thank you for purchasing a psychrometer from PCE Instruments.

The psychrometer PCE-310 is a pocket-sized, battery-operated device for measuring the air humidity, air

temperature, dew point temperature and wet bulb temperature. In addition, the psychrometer comes with

an external temperature probe for checking surface and core temperatures. This makes the device well-

suited for on-site application in the field of quality control, air conditioning or in the construction sector.

2 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. There is no

warranty of damages or injuries caused by non-observance of the manual.

This device may only be used in the way specified in this manual. If used otherwise, this may

cause dangerous situations.

Do not expose the device to extreme temperatures, direct sunlight, extreme air humidity or

moisture.

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

Do not touch the instrument with wet hands.

You should not make any technical changes to the device.

The appliance should only be cleaned with a damp cloth / use only pH-neutral cleaner without

solvents or abrasives.

The device must only be used with original PCE accessories or equivalent.

Before each use, please inspect the case for damage. In case of any visible damage, please do

not use the device.

The device must not be used be used when the environmental conditions (temperature, air

humidity,…) are outside the limit values stated in the specifications.

Do not expose the instrument to explosive atmospheres.

The instrument should never be placed with the user interface facing an object (e. g. keyboard

side on a table).

This user's handbook is published by PCE Instruments without any guarantee.

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.

Manual

3 Specifications

3.1 Technical specifications

Measuring range (internal sensor)

Air temperature: -20 ... +50 °C (-4 ~ 122 °F)

Air humidity: 0 ... 100 % RH

Wet bulb temperature: -21.6 ... +50 °C

(-6.88 ~ 122 ºF)

Dew point temperature: -78.7 ... + 50 °C

(-109.7 ~ 122 ºF )

Measuring range (external probe)

Temperature: -20 … +70 °C (-4 ~ 158 ºF)

Resolution

0.1 % RH and 0.1 °C

Accuracy

± 3% at 25 °C. and ±1 °C

Response time

Approx. 60 s

Humidity sensor

Resistance sensor

External temperature sensor

With1.1 m cable

Adaptable to a 2.5 mm plug

Length: 15 cm including handle

Power supply

2 x 1.5 V AAA batteries

Operating temperature

-20 ... 50 °C ( 14 ... 140 °F )

Operating humidity

<100 % RH

Dimensions

24.7 x 48.4 x 178.5 mm

Weight

130 g

3.2 Delivery contents

1 x psychrometer PCE-310

1 x external temperature probe

2 x 1.5 V AAA batteries

1 x instruction manual

Manual

4 System description

1) “ON/OFF” button

2) “ΔT/DP/T1“ button –switch between ΔT, dew point and T1 (ΔT = T1 –T2; T1 = air temperature; T2 =

external temperature)

3) "°C/°F” button –switch between °C and °F

4) “HOLD”button

- Hold display

- ON/OFF + HOLD = Non-Sleep mode, Non-sleep time is selectable from 2, 5, 10, 20, 40 to 60 min. (The

default setting is auto-sleep after 10 min.)

5) “Δ/WB/T2“ button - Switch between ∂, wet bulb and T2 (Δ= T2 –DP; T2 = external temperature)

6) “MN/MX/RESET” button

- Reset min/max memory.

- Display minimum value of memory since last power on

- Display maximum value of memory since last power on

Manual

Replace the batteries

1. Open the battery cover on the back side of the device.

2. Remove the old batteries.

3. Insert two new 1.5 V AAA batteries and put the cover back on.

5 Operation

(1) Turn the protective sensor cap counter-clockwise until the holes are opened.

(2) Turn the meter on by pressing the “ON/OFF”button. Once the device is ready, the display shows the

air humidity and the air temperature.

(3) Press the “°C/°F”button for 1 second to switch between the different measuring units.

5.1 Data hold function

To freeze all readings on the display, press the “HOLD” button. A “HLD” indication appears on the

display.

To unfreeze them, press the “HOLD” button again.

To freeze the air temperature and air humidity readings only, press the “HOLD” button and the

“ΔT/DP/T1“ button at the same time. A “HLD” indication appears on the display and the “T1” indication

starts to flash.

To unfreeze the readings, simply press the “HOLD” button.

To freeze the temperature reading from the external probe only, press the “HOLD” button and the

“Δ/WB/T2“ button at the same time. A “HLD” indication appears on the display and the “T2” indication

starts to flash.

To unfreeze the reading, press the “HOLD” button again.

5.2 Dew point function

Press the “ΔT/DP/T1“ button until “DP” appears on the display. Now you can read out the dew point

temperature on the bottom left side of the display.

5.3 Wet bulb function

Press the “Δ/WB/T2“ button until Wb appears on the display. Now you can read out the wet bulb

temperature on the bottom right side of the display.

Note: When the external temperature probe is not connected to the device, the wet bulb temperature is

displayed by default.

5.4 Ex. temperature function

Connect the external temperature probe to the PCE-310 and press the “Δ/WB/T2“ button, until the “T2”

indication appears on the display. Now you can read out the temperature measured by the probe on the

bottom right side of the display.

Manual

5.5 Min/Max function

To display the minimum readings since last power-on, press the “MN/MX/RESET” button. A “MIN”

indication appears on the display. You can now watch the minimum values of all measuring parameters

(use the “ΔT/DP/T1“ and “Δ/WB/T2“ buttons).

To return to normal measuring mode, press the “MN/MX/RESET” button, until there is no “MIN” or “MAX”

indication on the display anymore.

To display the maximum readings since last power-on, press the “MN/MX/RESET” button twice. A “MAX”

indication appears on the display. You can now watch the maximum values of all measuring parameters

(use the “ΔT/DP/T1“ and “Δ/WB/T2“ buttons).

To return to normal measuring mode, press the “MN/MX/RESET” button, until there is no “MIN” or “MAX”

indication on the display anymore.

To reset the Min/Max function, press and hold the “MN/MX/RESET” for more than two seconds.

Warning: Do not remove the external temperature probe while you are checking the “T2”, “ΔT” or “Δ“

values or else an error code appears on the display.

5.6 ΔT and Δ

ΔT is calculated by subtracting the external temperature “T2” (external probe) from the air temperature

“T1”.

To display ΔT, press the “ΔT/DP/T1“ until the “ΔT “ indication appears on the display. Now you can read

out the ΔT value on the bottom left side of the display.

Δis calculated by subtracting the dew point temperature “DP” from the external temperature “T2”.

To display Δ, press the “Δ/WB/T2“button until the “Δ” indication appears on the display. Now you can

read out the “Δ” value on the bottom right side of the display.

5.7 Auto Power Off (Sleep function)

By default, the device turns itself off after 10 minutes of inactivity. To change this, press and hold the

“ON/OFF” button and the “HOLD” button while the meter is turned off. The display now automatically

switches between the available options. To select an option, release the buttons, once the desired option

is displayed.

The following settings are available: n (auto power-off deactivated), 2, 5, 10, 20, 40, 60 minutes.

5.8 Low Battery

A battery symbol will appear on the display when the power is low. When this is the case, please replace

the batteries as soon as possible to prevent inaccurate readings.

Manual

6 Calibration

1. Turn the meter off and put the sensor head on the 33% RH calibration standard. Press and hold

the “ON/OFF” button and the “°C/°F” button for more than one second to enter calibration mode.

2. “32.8%” will flash on the display and DP as well as WB is displayed as “---.-“, which means the

values are invalid in the calibration process.

After 30 minutes, flashing will stop and the procedure is finished.

3. Remove the 33 % standard and place the sensor on the 75 % RH calibration standard and press

the “MN/MX/RESET” for more than one second to enter 75.3 % calibration. “75.3 %” will flash on

the display.

After 30 minutes, the calibration is completed.

Note: You can exit the calibration process without saving at any time by pressing the “ON/OFF” button

Auto power off is disabled in calibration mode.

The calibration should be done at 23 °C to ensure highest accuracy.

If the deviation between the displayed value and the calibration bottle (75.3 %) is more than ±0.5

%, the calibration has failed.

7 Troubleshooting

7.1 Device cannot be turned on

a) Make sure you pressed the “ON/OFF” button for more than 0.1 seconds.

b) Check if the batteries are in place and put in correctly. Mind the polarity.

c) Replace the batteries and try again.

d) Remove the batteries for one minute, then put them back in and try again.

7.2 Error messages

Er 1, Er 2 or Er 3:

There is an error in the circuit of the device. Please contact our technical support.

Er 4:

Internal temperature is out of range.

Er 5:

External temperature is out of range.

Note: When the meter is turned on, plugging in an external probe might cause “ER 5” error in min. or

max mode of ext. temperature, T2-T1 and T2-dp. Resetting the Max/Min function might solve the

problem.

8 Disposal

For the disposal of batteries, 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.

If you have any questions, please contact PCE Instruments.

Manual

9 Contact

If you have any questions about our range of products or measuring instruments please contact PCE

Instruments.

9.1 PCE Instruments UK

By post:

PCE Instruments UK Ltd.

Units 12/13 Southpoint Business Park

Ensign Way, Southampton

Hampshire

United Kingdom, SO31 4RF

By phone:

02380 987 035

9.2 PCE Americas

By post:

PCE Americas Inc.

711 Commerce Way

Suite 8

Jupiter

33458 FL

USA

By phone:

561 3209162

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