3 Technical features
3.1 Technical features of the devices
KT 220 KH 220 KTT 220
Units displayed
°C, °F, °Ctd, °Ftd,%RH,
mV, V, mA, A, bar
1
°C, °F, °Ctd, °Ftd,%RH, lux, fc, mV, V,
mA, A, bar
1
°C, °F
Resolution
0.1°C, 0.1°F,
0.1%RH, 1 mV, 0.001 V,
0.001 mA, 0.1 A, 0.1 bar
0.1°C, 0.1°F, 0.1%RH, 1 lux, 0.1 fc, 1 mV,
0.001 V, 0.001 mA, 0.1 A, 0.1 bar
0.1°C, 0.1°F
External input
Female micro-USB connector
Input for probe 1 universal input
2
1 universal input
2
2 inputs for
thermocouple probes
(K, J, T, N, S)
Internal sensor
Temperature Temperature, humidity, light Temperature
Type of sensor NTC
Temperature: NTC
Humidity: capacitive
Light: photodiode
Thermocouple
Measuring range
Measuring range of the
internal sensor
3
:
From -40 to +70°C
Measuring range of the internal sensor
3
:
Temperature: from -20 to +70°C
Humidity: from 0 to 100 % RH
Light: from 0 to +10 000 lux
K: from -200 to +1300°C
J: from -100 to +750°C
T: from -200 to +400°C
N: from -200 to +1300°C
S: from 0 to 1760°C
Accuracies
4
±0.4°C from -20 to 70°C
±0.8°C below -20°C
Temperature: ±0.4°C from 0 to 50°C
±0.8°C below 0°C or above 50°C
Humidity
5
: ±2%RH from 5 to 95%RH
from 15°C to 25°C
Light: ±10% of reading +10 lux
K, J, T, N: ±0.4°C from 0 to
1300°C
±(0.3% of reading +0.4°C)
below 0°C
S: ±0.6°C
Setpoint alarms 2 setpoint alarms on each channel
Frequency of
measurement
From 1 second to 24 hours
Operating
temperature
From -40 to +70°C From -20 to 70°C From -20 to 70°C
Storage
temperature
From -40 to +85°C
Battery life
4 years
6
European
directives
2011/65/EU RoHS II; 2012/19/EU WEEE; 2014/30/EU EMC; 2014/35/EU
1
Some units are available only with optional probes.
2
Input which allows to plug different compatible probes: see optional probes and cables page 9.
3
Other measuring ranges are available according to the connected probe: see optional probes and cables page 9.
4
All accuracies indicated in this document were stated in laboratory conditions and can be guaranteed for measurement carried out in the same conditions, or carried out with calibration
compensation.
5
Factory calibration uncertainty: ±0.88%RH. Temperature dependence: ±0.04 x (T-20) %RH (if T<15°C or T>25°C)
6
On the basis of 1 measurement each 15 minutes at 25°C.
Technical features 7