Specifications

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40
TECHNICAL DATA - HMT 360 INTRINSICALLY SAFE HUMIDITY AND DEWPOINT
TRANSMITTERS WITH INTERCHANGEABLE PROBES
MEASURED VARIABLES
Relative humidity measurement range 0 - 100 %RH
Accuracy (including non-linearity and repeatability)
when calibrated against:
high quality, certified
humidity standards ±1 %RH (0...90 %RH)
±2 %RH (90...100 %RH)
salt solutions ±2 %RH (0...90 %RH)
(ASTM E104-85) ±3 %RH (90...100 %RH)
Response time (90%) at +68°F (+20
0
C) in still air
(with sintered filter) 15 seconds
Sensors:
HUMICAP
®
180 for typical applications
HUMICAP
®
180J for hydrogen applications
HUMICAP
®
180L for applications with a demanding
chemical environment
(max. 104°F (+40 °C) in high humidities)
Temperature
Measurement ranges:
HMP361 probe -40140°F (-40...+60 °C)
HMP363 probe -40°F248°F (-40...+120 °C)
HMP364/365/368 probes -40356°F (-40...+180 °C)
Typical accuracy of electronics
at +68°F (+20
0
C) ±0.18%F (±0.1 °C)
Typical temperature dependence
of electronics 0.005°F/°F (0.005 °C/°C)
Sensor Pt 1000 RTD 1/3 Class B IEC 751
CALCULATED VARIABLES (depends on model type)
Typical ranges
With HMP361 probe
dewpoint temperature -40°F140°F (-40...+60 °C)
mixing ratio 0...160 g/kg d.a.
absolute humidity 0...160 g/m
3
wet bulb temperature 32140°F (0...+60 °C)
With HMP363, HMP364, HMP365 & HMP368 probes
dewpoint temperature -40212F °(-40...+100 °C)
mixing ratio 0...500 g/kg d.a.
absolute humidity 0...600 g/m
3
wet bulb temperature 0212°F (0...+100 °C)
OUTPUTS
Two analog outputs Two wire 4...20 mA
(one standard, one optional)
Typical accuracy of analog
outputs at +20 °C ±0.05% FS
Typical temperature dependence
of analog outputs 0.003%/°F FS(0.005% /°C) FS
Optional LonWorks
®
channel
RS232C serial output for service use connector type RJ45
CLASSIFICATION WITH CURRENT OUTPUTS
Cenelec (76/117/EEC) EEx ia IIC T5
VTT No. Ex-99.E.005X
U.S.A., Canada, Japan and Australia Pending
Safety factors with current outputs Ui=28 V, Ii=100 mA,
Ci=48nF, Li=22mH
LonWorks
®
MODULE
Connections screw terminals, 0.33...2.0 mm
2
wires (AWG 14-22)
Connection type XF78 (TP78)
Communication speed 78.125 kbit/s
Maximum cable length
with dual terminated bus topology 1000 m
with free topology (incl. Terminators) 300 m
Application power two-wire power & signal
Signalling form (unipolar) IS node draws 20 mA to
transmit
LonWorks
®
module classification
EU (76/117/EEC) Eex ia IIC T4
VTT No. Ex-99.E.006X
Safety factors with LonWorks
®
module Ui=24 V, Ii=225 mA,
Pi=1.2 W, Ci= 0 F, Li=22mH
GENERAL
Operating voltage 12...28 V
with serial port (service mode) 15...28 V
Connections screw terminals, 0.33...2.0mm
2
wires (AWG 14-22)
Cable bushing Pg11 (5...12mm)
Conduit fitting Pg11/NPT 1/2"-14
Operating temperature range for
electronics -40140°F (-40...+60 °C)
with display and/or with
LonWorks
®
module -4140°F (-20...+60 °C)
Storage temperature range -40158°F (-40...+70 °C)
Housing material G-A1Si 10 Mg (DIN 1725)
Housing classification NEMA 4 (IP 65 )
Housing dimensions 164 x 115 x 62mm
Housing weight 950g
Fully electromagnetically compatible
according to standards EN50081-1 and EN50082-2
OPTIONS AND ACCESSORIES
Display two-line LCD
character size (1
st
line/2
nd
line) 12 mm/10 mm
Calculated output variables dewpoint temperature
mixing ratio
absolute humidity
wet bulb temperature
Additional analog output 4...20 mA
LonWorks
®
channel XF78 (TP78)
Duct mounting installation kit
(for HMP363 sensor head) Order code: HMP233FAH
Installation flange (for HMP365 sensor head)
aluminium Order code: HMP235FA
stainless steel Order code: HMP235 FS
Ball valve set (for HMP368
sensor head) Order code: DMP248VS
pressure range at 68°F (+20 °C) 0...70 bar
Serial interface cable for PC
connectors RJ45 - D9 female Order code: 19446ZZ
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