Kimo HM 50 Technical Data Sheet

Part number
To order, just add the code to complete the part number :
Transmitter/ Power supply / Output
V
Active • 24 Vac/Vdc • 0-10V
A
Passive
-
HM 50
Example : HM 50-A
Model : humidity transmitter HM 50, passive loop 4-20 mA.
Dimensions
(with wall-mount plate)
100 mm
Ø 13 mm
Technical Data Sheet
Presure • Temperature • Humidity • Air Velocity • Air Flow
Humidity transmitter
HM 50
• 18/30 Vdc • 4-20 mA
42 mm
• Humidity transmitter type HM 50
• Range 0-100 %RH
• 0-10 V output, active sensor, power supply 24 Vac/Vdc (3-4 wires) or
4 -20 mA output, passive loop, power supply 18 to 30 Vdc (2 wires)
• ABS IP 30 housing, without display
• Quick and easy mounting with the " ¼ turn" system with wall-mount plate
Features of the transmitter
Humidity
Working principle : the measurement of humidity is made by only one digital
component CMOS (complementary metal-oxyde semiconductor), including
a capacitive element and a thermistor. This technology guarantees an
excellent stability in the long term, along with a great accuracy of the
measurement.
Measuring range.................................0 to 100 %RH
Unit of measurement..........................% RH
Response time....................................1/e (63%) 4 s
Type of fluid ........................................air and neutral gases
HYGROMETRY PROBE :
Guaranteed Accuracy Limits* (GAL) = ±2,95 % RH
between 18 and 28°C (normal measurement range)
Measuring range : 0 to 100%RH
Short-term drift : 1%RH / year
* As per norm NFX 15-113 and the Charter
"2000-2001 HYGROMETERS".
Features of the housing
Housing ...............................................ABS
Fire-proof classification.....................HB as per UL94
Dimensions .........................................see drawing beside
Protection............................................IP 30
Cable grip ............................................for cables Ø 7 mm max.
Weight..................................................110 g

Technical Specifications

Output / Power supply ...........
.......................................................
.......................................................
.......................................................
Consumption......................................2 VA (0-10V) or max. 22 mA (4-20 mA)
Electro-magnetical compatibility .....EN 61326
Electrical connection
........................
Communication to PC ........................ Kimo RS 232 cable
Working temperature .........................+10 to +40°C
Storage temperature ..........................-10 to +70°C
Environment .......................................air and neutral gases
2
* GAL = Et + Ehl + k (uet +ur +ud +us )1/2
As per the Charter 2000/2001 Hygrometers with :
uet : uncertainty of calibration = ± 0,55%RH
ur : uncertainty of resolution = ± 0,003%RH
ud : manufacturing dispersion = ± 0,2%RH
us :comparison repeatability = 0,13%RH
Et : temperature coefficient error = ± 0,42%RH
Ehl : Linearity and hysteresis errors = ± 1,33%RH
k :coverage factor value = 2
active sensor 0-10 V (power supply 24 Vac/Vdc ±10%), 3-4 wires
passive loop 4-20 mA (power supply 18/30 Vdc), 2 wires
maximum load : 500 Ohms (4-20 mA)
minimum load : 1 K Ohms (0-10 V)
screw terminal block for cable Ø 1.5 mm² max.
2 2 2