PCE Instruments PCE - 777N User manual

Manual
Temperature Meter PCE - 777N
Version 1.0
Date of creation: 31.03.2016
Date of last change: 01.04.2016
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[email protected]
www.pce-instruments.com/english
www.pce-instruments.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: [phone]
Fax: [phone]
[email protected]

Contents
1Introduction .............................................................................................................3
1.1 Delivery content.......................................................................................................................... 3
2Safety notes.............................................................................................................3
2.1 Warning symbol.......................................................................................................................... 3
2.2 Warning ...................................................................................................................................... 4
3Specifications..........................................................................................................4
4System description.................................................................................................5
5Operation.................................................................................................................6
5.1 Measuring process ..................................................................................................................... 6
5.2 Switching device on and off........................................................................................................ 6
5.3 Measuring values “frozen” (Data-Hold)...................................................................................... 6
5.4 Selection of the temperature unit (°C/°F) ................................................................................... 6
5.5 MAX/MIN function....................................................................................................................... 6
5.6 Laser pointer and display backlighting ....................................................................................... 6
5.7 General notes to the infrared measurement............................................................................... 7
6Emissivities .............................................................................................................7
7Maintenance and cleaning......................................................................................8
7.1 Cleaning...................................................................................................................................... 8
8Disposal...................................................................................................................9
9Contact.....................................................................................................................9
9.1 PCE Instruments UK .................................................................................................................. 9
9.2 PCE Americas ............................................................................................................................ 9

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1 Introduction
Thank you for purchasing a PCE-777N from PCE Instruments.
The contact-free thermometer PCE-777N can measure surface temperatures using an infrared sensor,
over a great distance without interference.
This lightweight compact remote thermometer is characterised by ease of use and includes a convenient
red laser pointer, enabling the user to aim precisely at the surface area, of which the temperature is to be
measured. The device is suitable for use in industry, in the workshop, for service and maintenance, for
example for heating and ventilation, air conditioning, vehicle maintenance, or for checking electrical
installations and control cabinets. The display back lighting may be switched on or off. It enables
temperature readings to be taken remotely, quickly and easily from a safe distance. Thus allowing the
user to measure very high temperatures, moving objects, or surfaces that would otherwise be difficult to
access. The emissivity of the thermometer is set at 0.95, therefore covering about 90 % of temperature
measurement applications.
1.1 Delivery content
1 x Contact-free thermometer
1 x Battery
1 x Manual
2 Safety notes
Please read the operating manual thoroughly before using the device.
No liability is accepted for damage to the equipment if the operating procedure, as specified in the
manual, is not adhered to.
The thermometer uses a class 2 laser. Do not look into the laser pointer. This can lead to
eye damage. The laser must not be switched on if anyone is in the field of vision. The
laser beam must not be aimed at explosive gases.
2.1 Warning symbol

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2.2 Warning
If the safety notes are not adhered to, then the device could get damaged; also, this can lead to
personal injury.
Do not to expose the device to extreme environmental conditions, direct solar radiation, extreme
humidity or moisture.
Do not use the device with wet hands.
No technical changes should be carried out on the device.
The device should be cleaned with a damp and lint-free cotton cloth. Do not use scouring agents
or solvents.
The device is only allowed to be used with the offered PCE Instrument accessories or an
equivalent replacement.
Before each use, check the housing for any visible signs of damage. If any signs of damage are
visible, do not use the device.
The measuring device must not be used in environmental conditions that are not within the limits
(temperature, humidity…) stated in the specification table.
The measuring device must not be used in an explosive atmosphere.
Before each use, please check the device by measuring a known factor.
The measured value limits as stated in the specification table, must not be exceeded.
The laser beam is not allowed to be aimed at people or at animals. The reflected beam off a
shiny surface is not allowed to shine into anyone’s eyes.
Do not look into the laser beam.
If you have any queries, please contact PCE Instruments.
3 Specifications
Temperature measuring range
-30 … +260 °C / -22 … 500 °F
Resolution
0.1 °C
Accuracy
(Specified at 18 °C to 28 °C, <80 % RH)
±4 °C (in the range from -30 °C … 0 °C)
±2 % or ±2 °C (in the range from 0 °C … 260 °C)
Response time
<1 s
Spectral range
6 ~ 14 µm
Automatic switch off
after 8 s of inactivity
Power supply
9 V block battery
Dimensions
82 x 41.5 x 160 mm
Environmental conditions
Operation: 0 … 50 °C, 10 % … 90 % RH
Storage: -20 °C … 60 °C, <80 % RH
Weight
180 g
Measuring spot (measuring distance to measuring
point size)
8:1
Emissivity (non-adjustable)
0.95
Laser point / target point
Visible single-point laser beam,
performance <1 mW, wavelength 630 ~ 670 nm,
class ll
LC display
3-5 digits, backlit

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4 System description (1) Infrared sensor
(2) Laser pointer
(3) Display
(4) Key for unit °C (Centigrade) / °F (Fahrenheit)
(5) Selection key minimal / maximal value display
(6) Key for laser and display backlighting
(7) Measurement trigger
(8) Battery compartment
(1) Symbol for ongoing measuring
process
(2) Symbol for “frozen” measuring results
(Data-Hold)
(3) Symbol for active laser point
(4) Emissivity (non-adjustable)
(5) Symbol for unit °C/°F
(6) Symbol for low battery level
(7) MAX/MIN value
(8) MAX/MIN symbol
(9) Measuring results

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5 Operation
5.1 Measuring process
Hold the device by the grip and aim at the object the surface temperature of which is to be measured.
The device automatically compensates for any temperature fluctuations from the surrounding
environment. Please note that it may take up to thirty minutes before the device fully registers major
changes in the surrounding or ambient temperature. It is also advisable to wait several minutes between
taking very high or very low readings. This will allow the infrared sensor time to regain its correct
operating temperature before taking the next reading.
5.2 Switching device on and off
The device switches on automatically when the measuring trigger (7) is pressed. Keep the trigger pressed
to carry out a measurement. Read the measuring values on the display. The device switches off after
approx. 8 seconds of inactivity.
5.3 Measuring values “frozen” (Data-Hold)
After releasing the trigger (7), the measuring device automatically keeps the measuring value on the
display for approx. 8 seconds. No additional user tasks are necessary.
5.4 Selection of the temperature unit (°C/°F)
To change the units between Centigrade and Fahrenheit keep the measuring trigger pressed. Then by
pressing the °C (Centigrade) and °F (Fahrenheit) (4), the desired unit may be selected. The selected unit
is then shown on the display.
5.5 MAX/MIN function
The function of the minimal and maximal value is controlled by pressing the selection key minimal /
maximal value display (5) repeatedly. The activated function is indicated by a symbol on the display.
5.6 Laser pointer and display backlighting
Press and hold the measuring trigger and:
press the laser activation key (6), to switch the laser pointer on. The laser pointer is activated
When it is switched on, a symbol appears on the display that the laser pointer (3) is activated.
press the backlighting key (6) twice, to turn on the lighting.
press the laser activating key (6) three times to switch the laser pointer off.
press the backlighting key (6) four times to switch the lighting off.

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5.7 General notes to the infrared measurement
Fundamental principle
Infrared thermometers measure the surface temperature of an object. The device picks up the thermal
emissions of an object, collects them and focusses them onto a sensor. The device electronics transfer
the information into a temperature value that is then shown on the display. The laser pointer helps aim at
the area to be measured.
Field of View (FOV) / Field of vision / Measured surface
Ensure that the area to be measured is larger than the measuring surface of the device. The smaller the
object is, the closer the device should be held towards the object. The general rule is that the object
should be double the size of the measured surface.
Measurement of metallic surfaces
It is recommended not to measure the temperature of shiny and polished metallic surfaces (stainless
steel and aluminium) as the thermal emissions may fluctuate.
Measurement through glass
The device cannot measure the temperature of transparent surfaces such as glass. Instead the
temperature of the glass is measured.
Influence of fog, dust, smoke, etc.
The reduced visibility may lead to incorrect readings.
6 Emissivities
Most organic material, such as painted and oxidised surfaces have an emissivity of approx.0.95 (non-
adjustable value set in device). Some surfaces (e. g. shining metals) can lead to incorrect measurements.
To compensate the effect, cover the measuring area with black tape, or a thin black coating of paint. Wait
for the tape or the coating to have reached the same temperature as the surface. Measure the
temperature of the black tape or the coating.

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7 Maintenance and cleaning
Warning: To prevent incorrect measurements and any
resulting personal injuries, replace the battery as soon
as the battery symbol appears.
If the battery voltage is insufficient then the battery
symbol appears on the display. Replace the 9 V
battery, to prevent incorrect measurements and any
resulting dangers. Remove the battery compartment
cover to replace the battery and take the old battery out
and insert a new 9 V battery. Then fit the compartment
cover back on to the device.
7.1 Cleaning
The device should be cleaned with a damp and lint-free cotton cloth and if necessary with a gentle
detergent. Do not use scouring agents or solvents.

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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.
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:
561 320 9162