Vaisala HMT360 Technical data

www.vaisala.com

°C

°C

0

0-80 -60 -40 -20 20 40 60 80 100 120 140 160

180

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

0.6

0.7

HMT360 Series Intrinsically Safe Humidity and
Temperature Transmitters for hazardous areas

Technical data

Performance

RELATIVE HUMIDITY

Measurement range 0 ... 100 % RH
Accuracy (including non-linearity, hysteresis, and repeatability)

with Vaisala HUMICAP® 180 or 180R for typical applications

at +15 ... +25 °C (59 ... +77 °F) ± 1.0 % RH (0 ... 90 %RH)

±1.7 %RH (90 ... 100 %RH)
at -20 ... +40 °C (-4 ... +104 °F) ±(1.0 + 0.008 x reading) %RH
at -40 ... +180 °C (-40 ... +356 °F) ± (1.5 +0.015 x reading) %RH

with Vaisala HUMICAP® 180L2 for application with demanding

chemical environment
at -10... +40 °C (14 ... +104 °F) ± (1.0 + 0.01 x reading) %RH
at -40 ... +180 °C (-40 ... +356 °F) ± (1.5 + 0.02 x reading) %RH

Factory calibration uncertainty (+20 °C) ± 0.6 % RH (0 ... 40 %RH)

± 1.0 % RH (40 ... 97 %RH)

(Defined as ±2 standard deviation limits. Small variations

possible, see also calibration certificate.)

Response time (90 %) at +20 °C (+68 °F) in still air

with grid filter 8 s / 17 s*
with grid + steel netting filter 20 s / 50 s*
with sintered filter 40 s / 60 s*

* with HUMICAP® 180R sensor

TEMPERATURE

Measurement range -40 ... +180 °C (-40 ... +356 °F)

(depends on selected probe)
Typical accuracy of electronics at +20 °C (+68 °F) ±0.2 °C (0.36 °F)
Typical temparature dependence

of electronics 0.005 °C/°C (0.005 °F/°F)
Sensor Pt 1000 RTD 1/3 Class B IEC 751
Accuracy over temperature range

OTHER VARIABLES

Optionally available dewpoint temperature, mixing ratio,

absolute humidity, wet bulb temperature.

Operating environment

Temperature range

operating temp. range for
electronics
with display -20 ... +60 °C (-4 ... +140 °F)
storage -40 ... +70 °C (-40 ... +158 °F)

Pressure range see probe specifications

Complies with EMC standard EN61326-1, Electrical equipment for
measurement, control and laboratory use - EMC requirements;
Industrial Environment.
NOTE! IEC 1000-4-5 complies only when using external EXi
approved surge arrester on safe area.

-40 ... +60 °C (-40 ... +140 °F)

Technical data

Inputs and outputs

Operating voltage 12 ... 28 V

with serial port (service mode) 15 ... 28 V
Analog outputs two-wire 4 ... 20 mA,

one standard, one optional
Typical accuracy of analog outputs at +20 °C ±0.05% full scale
Typical temperature dependence

of analog outputs 0.005% / °C (0.005% / °F) full scale
Analog outputs connection via safety barriers
RS232C serial output for service use connector type RJ45
Display two-line LCD

Mechanics

Connections screw terminals, 0.33...2.0 mm

2 wires (AWG 14-22)

Cable bushings For 7.5...12mm or 10...15mm cable

diameters (M20)
Conduit fitting NPT 1/2" (M20)
Housing material G-AlSi10Mg (DIN 1725)
Housing classification IP66 (NEMA 4X)
Housing weight 950 g

Options and accessories

Duct installation kit (for HMP363/367) 210697
Mounting flange (for HMP365) 210696
Ball valve ISO 1/2 with welding joint

(for HMP368)
pressure range at +20 °C (+68 °F): 0 ... 20 bar (0 ... 290 psia)

(during installation max. 10 bar (145 psia)
Calibration adapter for HMK15 211302
Serial interface cable for PC

connectors RJ45 - D9 female 25905ZZ
Galvanic isolator 212483
Zener barrier (USA & Canada) 210664
Protection cover (for use in the
presence of combustible dust, ATEX)

BALLVALVE-1

214101

II 1 D IP65 T = 70 °C

Classification with current outputs

EUROPE / VTT

EU (94/9/EC, ATEX100a) II 1 G Ex ia IIC T4 Ga

VTT 09 ATEX 028 X issue No: 1

Safety factors Ui = 28 V, Ii = 100 mA, Pi = 700 mW

Ci = 1 nF, Li negligibly low

Environmental specifications

T

amb

P

amb

Dust classification (with protection cover) II 1 D (IP65 T=70 °C)

USA (FM)

Classes I, II, III, Division 1, Groups A-G and

Safety factors: Vmax = 28 VDC, I

Ci = 1 nF, Li = 0, Pi = 0.7 W, T

JAPAN (TIIS)

Safety factors: Ui = 28 VDC, Ii = 100 mA, Ci = 1 nF,

Pi = 0.7 W, Li = 0, T

CANADA (CSA)

Class I Division 1 and Division 2, Groups A, B, C, D;
Class II Division 1 and Division 2, Groups G and

Class III CSA File No: 213862 0 000, CSA Report: 1300863
Safety factors: T

Intrinsically safe when connected as per

CHINA (PCEC)

Standard GB3686.1-2000 and GB3836.4-2000

IECEx (VTT)

Safety factors

Environmental specification

T

amb

P

amb

-40 ... +60 °C (-40 ... +140 °F)

0.8 ... 1.1 bar

VTT 04 ATEX 023X

Division 2, Groups A-D, F and G

FM Project ID: 3010615

= 100 mA,

max

= 60 °C(140 °F), T5

amb

Ex ia IIC T4

Code number: TC17897

= 60 °C (140 °F)

amb

Coal Dust;

= 60 °C, T4,

amb

Installation Drawing DRW213478.

Ex ia II CT5

Certificate No. CE042052

Ex ia IIC T4 Ga

IECEx VTT 09.0002x issue No: 1

Ui = 28 V, Ii = 100 mA, Pi = 700 mW

= 1 nF, Li negligibly low

C

i

-40 ... +60 °C (-40 ... +140 °F)

0.8 ... 1.1 bar

For more information, visit
www.vaisala.com or contact
us at [e-mail]

Ref. B210890EN-A ©Vaisala 2009

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