Keison ETI RayTemp 8 Operating Instructions

Operating instructions
for RayTemp™ 8
infrared & probe thermometer
Simply aim the RayTemp 8 infrared (IR) thermometer at the target and press the trigger to measure the
surface temperature. The "SCAN" icon will be displayed. When the trigger is released the reading is
automatically held for 60 seconds and "HOLD" will be displayed, after which the thermometer will shut
down.
MEASUREMENT ZONE/TARGET DISTANCE - The measurement zone is proportional to the
distance the RayTemp is away from the target. The RayTemp 8 is equipped with a 11:1 lens. If the
target is 55cm (22") away the measurement zone will be 5cm (2") across.
EMISSIVITY - The RayTemp 8 has a default emissivity of 0.95 but is adjustable from 0.10 to 1.00.
The closer the emissivity value is set to the actual emissivity value of the object being measured, the
more accurate the readings will be. To adjust the emissivity press the "Emis." button and use the "°C/°F"
and the "Lock" buttons. Note: non-contact infrared thermometers are not recommended for use in
measuring shiny or polished metals.
LASER POINTER - The laser pointer function can be turned on or off by pressing the trigger
and simultaneously pressing the "°C/°F" button. The centre of the measurement zone is 14mm
(approximately ½") above the laser dot with the instrument held in a horizontal position. For
safety, the laser pointer will only activate when the trigger button is pressed. The laser module is a
Class 2 device that has a maximum power output of less than 1 mW at a wavelength of 650nm.
Prolonged, continuous exposure, such as staring at the beam, can be harmful and should be
avoided. Do not look at the beam with any optical instruments.
LCD BACKLIGHT - The LCD backlight function can be turned on or off by pressing the trigger
and simultaneously pressing the "Lock" button.
UNDER RANGE/OVER RANGE - If the measured temperature goes below or above the range
of the instrument, "Er" will be displayed. When the measured temperature returns within the range
of the instrument, readings will automatically be displayed.
THERMOCOUPLE PROBE/SENSORS - To display the thermocouple probe temperature,
press and hold the "Mode" button until "PRB" is displayed. If the thermocouple breaks or is not
connected, in addition the instrument will display 'noP'. The RayTemp 8 should only be used
with thermocouple type K nickel-chromium/nickel-aluminium probes or sensors that meet BS EN
60584:1996 standard and are fitted with a suitable miniature thermocouple plug.
MAXIMUM, MINIMUM, DIFFERENTIAL & AVERAGE - To access the maximum reading,
press the "Mode" button until "MAX" is displayed. To access the minimum reading, press the "Mode"
button again until "MIN" is displayed. To access the differential reading, press the "Mode" button
until "dIF" is displayed. To access the average reading, press the "Mode" button again until "AVG"
is displayed. Maximum and minimum, differential and average readings will be reset when the
instrument is turned off.
°C/°F - Press and hold the "°C/°F" button without pressing the trigger until the °C or °F scale
changes. Please note: the instrument's default is °C.