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Laser “On” symbol
SCAN or HOLD
ºC/ºF symbol (Celsius/Fahrenheit)
Primary temperature display
Secondary temperature display
Emissivity LO, MED, HI
Temperature values for the MIN, MAX, DIF, KTC.
KTC indicates the thermocouple temperature.
Low Battery symbol. Appears when the battery charge
is < 25%
Thermometer Display
Connecting the Temperature Probe
With probe inserted, the 561 stays on for 10 minutes (with laser
off) after trigger is released.
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Locating a Hot and Cold Spot
Distance and Spot Size
Field of View
Switching between °C and °F
Switch
D:S=12:1
38 mm @
300 mm
75 mm @
900 mm
132 mm @
1500 mm
1.5 " @
12 "
3 " @
36 "
5.3 " @
60 "
S
D
Yes
No
Specifications
Infrared
Measurement Range............... -40 °C to 550 °C (-40 °F to 1022 °F)
Spectral Range........................ 8 to 14 microns
Accuracy................................. ±1 % or ±1 °C (2 °F); < 0 °C (32 °F),
±1 °C (2 °F) ±0.1°/1°
(Assumes ambient operating temperature of
23 to 25 °C (73 to 77 °F))
Repeatability........................... ±0.5 % of reading or ±1°C (2 °F)
Display Resolution.................. 0.1 °C (0.1 °F)
Secondary Display Information Maximum, Minimum, Differential, KTC
Response Time (95 %)........... 500 ms
Distance to Spot (D:S)............ 12:1
Emissivity Adjustment............. Three settings: low (0.3), medium (0.7),
high (0.95)
Contact Probe Input
Input Temperature Range........ -40 °C to 550 °C (-40 °F to 1022 °F)
Input Accuracy........................ Input accuracy +/- 1.1 °C (+/- 2 °F)
Display Resolution.................. 1 °C (1 °F)
Laser
Sighting .................................. Single point laser
Power..................................... Class 2 (II) operation; Output <1 mW,
wavelength 630 to 670 nm
Bead Thermocouple Probe
Type........................................ Type K with miniconnector
Measurment Range................. -40 °C to 260 °C (-40 °F to 500 °F)
Accuracy................................. ±1.1 °C (2.0 °F) from 0 °C to 260 °C (32 °F to
500 °F). Typically within 1.1 °C
(2.0 °F) from -40 °C to 0 °C
(-40 °F to 32 °F)
Cable Length........................... 1 m (40 in) terminated with Type K
thermocouple beads
Electrical
Power Supply.......................... 2 AA Batteries (alkaline or NiCD)
Power Consumption ............... At least 12 hours battery life
Physical
Weight .................................... 0.322 kg (0.7099 lb)
Size......................................... 17.69 cm (6.965 in) x 16.36 cm (6.441 in) x
5.18 cm (2.039 in)
Environmental
Operating Temperature Range 0 °C to 50 °C (32 °F to 120 °F)
Relative Humidity.................... 0 to 90 %, noncondensing up to 30 °C (86 °F)
Storage Temperature............... - 20 °C to 65 °C (-4 °F to 150 °F)
Optional Accessories............... Soft Case