RS PRO 1327K User manual

Infrared / K Thermometer
Remote Temperature Measurement
( Non-Contact )
1327K
INSTRUCTION MANUAL

TABLE OF CONTENTS
TITLE PAGE
INTRODUCTION.......................................................................1
Ⅰ. SAFETY INFORMATION.....................................................2
Ⅱ. FEATURES..........................................................................4
Ⅲ. SPECIFICATIONS...............................................................4
Ⅳ.GENERAL LAYOUT AND OPERATING CONTROLS ........7
Ⅴ. LCD DISPLAY DESCRIPTION............................................9
Ⅵ. EMISSIVITY ADJUSTMENT ...............................................9
Ⅶ. TEMPERATURE MEASUREMENT...................................13
Ⅷ. SETTING MODE ...............................................................15
Ⅸ. BATTERY REPLACEMENT ..............................................17

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INTRODUCTION
The RS 1327K hand-held thermometer is a convenient and
easy to use instrument, allowing temperature measurement
either by an Infrared non-contact method, or by using a plug-in
type-K thermocouple probe.
The thermometer has an integral laser to assist sighting the
Infrared sensor for making non-contact measurements of items
that are inaccessible or hazardous to touch such as rotating
machinery, high-voltage bus-bars, or inaccessible objects. The
Infrared mode does not rely on physical contact with the object
whose temperature is to be taken, but measures the radiated
infrared energy from the object.
The thermocouple connector will accept a standard liquid, air or
surface thermocouple probe as required to suit the particular
application.
The Liquid Crystal Display has a backlight function which may
be enabled to assist measurements made in a dark place.
Other features include reading auto-hold, auto power-off,
maximum and minimum readings, alarm levels and adjustable
emissivity, all of which can be selected for maximum operating
convenience.

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Ⅰ. SAFETY INFORMATION
1. Read the following safety information carefully before
attempting to operate or service the meter.
Laser Safety Warning
LASER RADIATION DO
EN 60825-1:1994/A11:1996
If the MEAS button is pressed while the symbol is shown
on the LCD, the meter will radiate the laser. To prevent injury,
do not look or stare into the beam. Do not point the laser
directly at eyes or indirectly off reflective surfaces.
●If the target object has a smooth surface, the laser may be
reflected and create a hazard.
●Do not radiate the laser at flammable gasses or other
possible sources of ignition.
2. Precautions:
a). Do not operate the thermometer in the presence of strong
electrical or magnetic fields, as this may prevent correct
operation.
b). Use and store the thermometer away from direct sunlight
or other strong source of light, high temperatures, high
humidity or dust.
c). If the thermometer has been kept in area of high or low
temperature, wait until it has reached a stable temperature
before use.

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d). Condensation may form on the focal lens if the
thermometer is moved quickly from a cold to a hot
environment. Before taking measurements, wait for the
condensation to dissipate.
e). Do not touch the focal lens.
3. Environmental conditions:
a). Altitude up to 2000 meters.
b). Relatively humidity: 80% max.
c). Operating ambient temperature: 0 to 50 °C
4. Maintenance & Clearing:
a). Repairs or servicing should only be carried out by
competent persons using the correct parts, test equipment
and procedures. If repair or servicing is required, contact
the supplier or RS Components. The address is given at
the end of these instructions.
b). Periodically clean the case with a dry cloth. Do not use
abrasives or solvents.
5. Safety symbols:
Complies with the EMC Directive 89/336/EEC

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Ⅱ. FEATURES
¾°C/ °F Selectable.
¾Backlit LCD display.
¾Sighting laser.
¾Auto-hold function.
¾Maximum/minimum reading recorder function.
¾Auto power-off.
¾Type K thermocouple thermometer.
Ⅲ. SPECIFICATIONS
3-1 General Information:
Display: Backlit LCD display.
Auto power-off time: Approx.15 sec.
Data memory capacity: 99 set. (Direct reading on
LCD display)
Over-range indication: “OL” or “-OL”.
Low battery indication: The +symbol is displayed on
LCD when the battery voltage drops
below the operating voltage.
Power supply: Single 9V battery 006P 9V,
IEC6F22, or NEDA1604.
Battery life: Approx. 100 hours (with laser
pointer and backlight off)
Operating temperature: 0°C to 50°C (32°F to 122°F),
Operating humidity: Below 80%RH.

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Storage temperature –10°C to 60°C (14°F to 140°F),
Humidity: Below 70%RH.
Dimensions: 172(L)×118(W)×46(H) mm
6.8(L)×4.6(W)×1.8(H) inches.
Weight: Approx. 220g with battery.
Accessories: Instruction manual, carrying case,
battery.
3-2 Electrical specifications:
Measuring range: -35°C to 500°C (-31°F to 932°F)
Resolution: 0.1°C, 0.2°F
Accuracy: ± 2% of reading or ± 2°C or 4°F
(whichever is greater).
Temperature
coefficient: 0.1 times the applicable accuracy
specification per °C from 0°C to
18°C and 28°C to 50°C (32°F to
64°F and 82°F to 122°F).
Measurement rate: 2 times per second.
Spectral Response: 6 to 14um.
Field of view: 12:1; optics ratio with a 1” min
target.
Emissivity: 0.17 ~ 1.00 (adjustable,
preset at 0.95)
Sighting: Laser marker < 1mw (class 2).
Sensor: Thermopile.

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Type K
Measuring range : -150°C to 1350°C (-238°F to 1999°F).
Resolution : 0.1°C , 1°C , 0.1°F , 1°F
Measurement rate : Once per second.
Basic accuracy : (@ 23±5°C calibration) accuracy are ±
(…% of reading + degree) at 18°C to
28°C with relative humidity up 80%.
Function Resolution Range Accuracy
-150°C～0°C ±( 0.2%rdg + 1.0°C)
0.1°C 0°C～200°C ±( 0.1%rdg + 1.0°C)
°C
1°C 200°C～1350°C ±( 0.2%rdg + 2°C)
-238°F～32°F ±( 0.2%rdg + 2°F)
0.1°F 32°F～200°F ±( 0.1%rdg + 2°F)
° F
1°F 200°F～1999°F ±( 0.2%rdg + 4°F)
Temperature Coefficient:
0.1 times the applicable accuracy specification per °C from 0°C to
18°C and 28°C to 50°C ( 32°F to 64°F and 82°F to 122°F ).
Note :
The basic accuracy specification does not include the
error of the probe. Please refer to the probe accuracy
specification for additional details.

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Ⅳ.GENERAL LAYOUT AND OPERATING CONTROLS
CAUTION
AVOID EXPOSURE -LASER RADIATION IS EMITTED FROM THIS
APERTURE
LASER RADIATION - DO NOT STARE INTO BEAM
OUTPUT < 1mW WAVELENGTH 630-670nm
CLASS (II) LASER PRODUCT
Complies with IEC 60825-1:(1998-01) Edition 1.1,
EN 60825-1:1994/All:1996
Type K
K
°C
°F

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1. Display.
Button Press once Press and hold
for 3 seconds
2. MODE
Enter MAX/MIN recording mode.
MAXÆMINÆCurrent reading (MAX/MIN)
Ç
cFrom MAX/MIN
mode will exit this
mode and return to
normal operation.
dFrom normal mode will
enter setting mode.
3.
M
▼
cFrom normal mode will turn the
backlight on or off
dFrom Read mode, decrements the
memory location number.
eFrom SET mode decreases the
value of the selected parameter.
Store the displayed
reading.
4.
R
▲
cFrom normal mode will enable or
disable the laser.
dFrom Read mode increments the
memory location number.
eFrom SET mode increases the
value of the selected parameter.
Read the stored data
from memory.
5. Measuring trigger :
cTrigger for turning the thermometer on.
Pull the trigger to turn on the thermometer and make a
measurement.
dIn SET mode, pull the trigger to store the required value and
exit SET mode.
ePress and hold the MODE button, then pull the trigger to enter
continuous measurement mode.
fIn continuous measurement mode, pull the trigger to turn
the meter off.
6. Battery cover.
7. Laser aperture.
8. Focal lens.
9. Type K thermocouple input socket.

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Ⅴ. LCD DISPLAY DESCRIPTION
°C
°F
K
1. Hold function 11. Lo alarm
2. Maximum reading 12. Alarm function
3. Minimum reading 13. Hi alarm
4. Low battery indicator 14. Memory and Read address number
5. Maximum/minimum value 15. Read memory data
6. Emissivity value setting 16. Type K measuring indicator
7. Measured value 17. Memory full indication
8. Measure indication 18. Store data to memory
9. Laser enabled indicator 19. Units “°C , °F ”
10. SET symbol
Ⅵ. Emissivity Adjustment
1.Emissivity: Emissivity is a value between 0.17 and 1 which
indicates an object’s ability to emit infrared energy. Emissivity
is determined primarily by the objects’ composition and surface
finish.
The thermometers’ sensitivity to emissivity “
ε
” is preset at
0.95, because this setting will be applicable to 90% of
surfaces encountered, but can be adjusted as required.

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2. Emissivity adjustment
cApply black tape, matt-black paint or black magic marker to
the object if it is safe to do so.
d“
ε
” is set at 0.95 to indicate correctly from a dark surface.
eAim the sensor at the black surface, pull the trigger and
note the reading as T1.
fRemove the black tape or matt-black paint and aim the
sensor at the same area again. Pull the trigger and note the
reading as (T2).
gChange the emissivity value “
ε
” until T2 and T1 are equal
as follows:
a). Enter setting mode (refer to MODE button above).
b). Press MODE button to select the
ε
value setting.
c). Press ▲or ▼buttons to set desired value.
d). Pull the trigger to store the setting value and exit set mode.
The following table gives typical emissivity values for
common materials
Emissivity VALUES
Typical Emissivity Values; Metals
SURFACE EMISSIVITY
Zinc (oxidized) 0.1*
Galvanized iron 0.3
Tin-plated steel 0.1*
Gold (polished) 0.1*
Silver (polished) 0.1*
Chromium (polished) 0.1*
Iron and Steel
Cast iron (polished) 0.2
Cast iron (turned at 100°C) 0.45
Cast iron (turned at 1000°C) 0.6 to 0.7
Steel (ground sheet) 0.6
Mild steel 0.3 to 0.5

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Steel plate (oxidized) 0.9
Iron plate (rusted) 0.7 to 0.85
Cast iron (rough) rusted 0.95
Rough ingot iron 0.9
EMISSIVITY VALUES
Typical Emissivity Values; Metals
SURFACE EMISSIVITY
Molten cast iron 0.3
Molten mild steel 0.3 to 0.4
Stainless steel (polished) 0.1
Stainless steel (various) 0.2 to 0.6
Aluminum
Polished aluminum 0.1*
Aluminum (heavily oxidized) 0.25
Aluminum oxide at 260°C 0.6
Aluminum oxide at 800°C 0.3
Aluminum Alloys various 0.1 to 0.25
Brass
Brass (polished) 0.1*
Brass (roughened surface) 0.2
Brass (oxidized) 0.6
Copper
Copper (polished) 0.05*
Copper plate (oxidized) 0.8
Molten copper 0.15
Lead
Lead (pure) 0.1*
Lead (oxidized at 25°C) 0.3
Lead (oxidized , reated to 200°C) 0.6
Nickel and its alloys
Nickel (pure) 0.1*
Nickel plate (oxidized) 0.4 to 0.5
Nichrome 0.7
Nichrome (oxidized) 0.95

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Emissivity Values; Non-metals - Refractory & Building materials
Red brick (rough) 0.75 to 0.9
Fire clay 0.75
Asbestos 0.95
Concrete 0.7
Marble 0.9
Carborundum 0.85
Plaster 0.9
Alumina (fine grain) 0.25
Alumina (coarse grain) 0.45
Silica (fine grain) 0.4
Silica (coarse grain) 0.55
Zirconium silicate up to 500°C 0.85
Zirconium silicate at 850°C 0.6
Quartz (rough) 0.9
Carbon (graphite) 0.75
Carbon (soot) 0.95
Timber (various) 0.8 to 0.9
Miscellaneous
Enamel (any color) 0.9
Oil paint (any color) 0.95
Lacquer 0.9
Matte black paint 0.95 to 0.98
Aluminum lacquer 0.5
Water 0.98
Rubber (smooth) 0.9
Rubber (rough) 0.98
Plastics (various, solid) 0.8 to 0.95
Plastic films (05 mm thick) 0.5 to 0.95
Polythene film (03 mm thick) 0.2 to 0.3
Paper and cardboard 0.9
Silicone polish (03 mm thick) 0.7
*Emissivity value varies with purity

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Ⅶ. TEMPERATURE MEASUREMENT
1. Non-contact measurement :
cPoint the instrument at the target and pull the trigger to turn it on
and start measuring (use the laser to select the target if required).
Release the trigger to stop measuring and auto-hold the reading.
The meter will turn off automatically after 15 seconds.
dAuto detection type K thermocouple plug-in or pull-out.
If a type K thermocouple is connected to the instrument, the
emissivity symbol
ε
will automatically change to K and the
temperature measured by the thermocouple will be displayed.
The Infrared sensor is disabled when a thermocouple is
detected by the instrument.
2. MAX/MIN hold function :
Pull & hold the trigger, then press MODE once to cycle through
maximum (MAX), minimum (MIN) and current reading
(MAX/MIN) modes.
Press and hold the MODE button for 3 seconds to exit this mode.
3. Continuous measurement :
Start with the instrument turned off. Press and hold the MODE
button and then pull the trigger to turn the meter on. Release
the MODE button and the instrument will enter continuous
measurement mode. The Hsymbol will not be visible in the
LCD, indicating the Hold function is disabled
cTo exit continuous measurement mode: Pull the trigger to
stop continuous measurement and turn the meter off.
dMAX/MIN reading: When in continuous measurement mode,
press the MODE button once to cycle through maximum (MAX),
minimum (MIN) and current reading (MAX/MIN) modes.
Press and hold the MODE button for 3 seconds to exit this
mode.

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Note:
Laser offset: The laser beam is offset 18mm(0.71in) from
the focal lens. Choose a sampling spot that is large enough
to include the laser offset.
Surface Temperature: The thermometer will measure the
temperature of the first surface it detects, e.g. a glass cover,
dust or fog. Ensure the object whose temperature is to be
measured is not obstructed.
4. Selecting °C/ °F units:
When the instrument is turned on, the units that appear in the
LCD are the last units measured. To change the temperature
units, pull the trigger to turn the meter on, then press and hold
MODE for 3 seconds until the “SET” mark appears on the LCD.
Press ▲or ▼to select the desired °C or °F units and then pull
trigger to store the setting.
5. Data memory store and read procedure :
cTo clear the data from the memory:
With the instrument turned off, press and hold the M button,
then pull trigger until “CLR” appears on the LCD.
dData memory: Press and hold the M button for 3 seconds to
store the current set of readings into memory.

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eReading the memory data: Press and hold the R button for
3 seconds to enter READ mode. Press the ▲or ▼buttons
to select to desired memory data location. Press the MODE
button to exit READ mode.
Ⅷ. SETTING MODE
Pull trigger to turn the meter on. Press & hold the MODE button
for 3 seconds until “SET” appears on the LCD.
1. Parameter settings for measuring:
Under the infrared parameter setting mode, the LCD will
show . Press the MODE button to select setting of “°C / °F”,
“ALM ON/OFF”, “ÈALM” “ALMÇ” and emissivity “
ε
”. Pull the
trigger to exit setting mode and return to normal measurement
mode.
2. Parameter settings:
c“°C / °F”: Temperature unit / °F, press ▲or ▼to select units
°C or °F.
dALM (Alarm function ON/OFF): Press ▲or ▼to select alarm
function on or off.
eÈALM (Lo Alarm Function): Press ▲or ▼to set a value
as an alarm value. When this Lo alarm value is exceeded,
the beeper will sound and the “ÈALM” symbol will appear
on the LCD.
fALMÇ(Hi Alarm Function): Press ▲or ▼to set up a value
as an alarm value. When this Hi alarm value is exceeded,
the beeper will sound and the “ALMÇ” symbol will appear
on the LCD.
Example:
To sound the alarm if the temperature exceeds 100°C or
falls below 0°C, set the Hi Alarm point to100°C and the
Lo Alarm point to 0°C.
SET

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Setting procedure:
a). Press and hold the MODE key for 3 seconds until the
LCD displays the “SET” mark.
b). Press “▲”button to select °C unit.
c). Press the MODE button once to enter ALARM ON/OFF
setting mode, then press the ▲or ▼key to select “ON”
mode.
d). Press the MODE button once to enter ÈALARM (Lo
Alarm point) setting mode.
Press the ▲or ▼button until the display reads 0.0°C.
e). Press the MODE button once to enter ÇALARM (Hi
Alarm point) setting mode.
Press the ▲or ▼button until the display reads100.0°C.
f). Pull the trigger to store the setting and exit the setting mode.
g
ε
(Emissivity): Press ▲or ▼to adjust the value.
h▲: Button for increasing the value. Hold down to increase
the parameter value rapidly.
i▼: Button for decreasing the value. Hold down to decrease
the parameter value rapidly.
Note:
After the setting procedure is terminated, the parameter
will be stored until changed.
Under setting mode, the backlight, laser, memory store
and read functions are disabled.
Pull the trigger to exit setting mode.

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Ⅸ. BATTERY REPLACEMENT
When the symbol +appears on the LCD screen, there is
insufficient power in the battery to provide an accurate
measurement. Replace the battery with a fresh one as follows:
a) Ensure the instrument is turned off
b) Open battery compartment cover on the rear of the grip.
c) Remove the exhausted battery from the compartment.
d) Fit a new battery of the type given in the specifications .
e) Close the battery cover.
f) Turn the instrument on and check for correct operation.
OPEN