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Environmental/Process
Air Transmitters
RH and Temperature with Dew Point
or Pressure Outputs
HX80A Series
NIST
Standard
U 316 SS Housing
U ±1% RH Accuracy
U ±0.5°C (1.0°F)
Temperature Accuracy
U High Temperature
[120°C (248°F)]
U Removable Stainless
Steel Sensor Cap
U RS232 Standard
U Adjustable ¾ NPT
Fitting
The HX80A Series is a family
of humidity probes that offer
a variety of measurement
parameters with precision
accuracy: relative humidity and
temperature, with dew point or
pressure. The probe is easily
adaptable for most applications
via a 3⁄4 NPT fitting that can be
adjusted to any desired position,
including high temperature and
high pressure conditions. This
remote type transmitter comes
standard with a 1.8 m (6') cable
and is ideally suited for many
different applications such
as environmental chambers,
compressed air, and industrial
applications.
Models offer a stainless steel
probe with a removable sinter
stainless steel filter and RS232
(which allows for reading of data,
scaling output, and for HX86A
type units, changing the digital
display and setting the alarms).
All models have 3 outputs, with
output 1 scaled for 0 to 100% RH,
output 2 scaled for -20 to 120°C
(-4 to 248°F), and output
3 determined by the model
number. Output 3 for HX85A
and HX86A is -60 to 40°C
HX85A shown smaller
than actual size.
(-76 to 104°F) dew point, for
HX85BA and HX86BA is 750
to 1100 mb, and for HX85PA
and HX86PA is 0 to 200 psia.
RH measurement range is 5 to
95% with an accuracy of ±1%.
temperature accuracy is
±0.5°C (33°F).
HX85A (probe only) models
(HX85A, HX85BA, HX85PA) offer
0 to 10V signals on the outputs
via a 1.8 m (6') cable. The HX86A
models (HX86A, HX86BA,
HX86PA) include a display box
attached to the end of the cable
from the probe, and offers a 2 line
digital display, 2 alarms, three
4 to 20 mA output signals, and an
RS232 serial output.
Hu-1
H
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HX86A
SPECIFICATIONS
RH Accuracy: ±1% RH
RH Measurement Range: 5 to 95%
Time Constant: <15 sec, air flow
dependent (for 66.6% response)
Temp Accuracy: ±0.5ºC (1.0°F)
Temp Measurement Range:
-20 to 120ºC (-4 to 248ºF)
Pressure Rating: 317 kg (700 lb)
(47.6 bar) max
Serial Output: RS232C
(bi-directional) to DTE device,
19.2 kilo baud, 8 bits data, 1 stop bit,
no parity
Power Requirements: 18 to 30 Vdc
unregulated, 50 mA max
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Alarm Relay (x2): Form A
(SPST, NO) rated at 3 A/250 Vac
Barometric Pressure
(HX85BA, HX86BA Only):
Range*: 750 to 1100 mb
Accuracy: ±5 mb
Although the unit is scaled 750 to
*
1100 mb, the unit actual measurement
range is 10 to 1100 mb and can be
reprogrammed in the field if the range
needs to be expanded.
High Pressure (HX85PA,
HX86PA Only):
Range: 0 to 200 psia
Accuracy: ±0.75 psi
Sensor Dimensions:
Probe: 19 Dia. x 203 mm (
Cable Length: 1.8 m (6')
Filter: Sinter stainless steel
(removable and cleanable)
Probe Material: Stainless steel
Fitting: Adjustable ¾ NPT
Weight: 0.9 kg (2 lb)
3
⁄4 x 8")
Display Box (HX86A, HX86BA,
HX86PA Only):
Dimensions: 130 x 94 x 56 mm
(5.1 x 3.7 x 2.2")
Mounting Centers: 115 x 79 mm
(4.52 x 3.11")
Digital Display: LCD, 2-line
Electrical Analog Outputs
(HX85A, HX85BA, HX85PA Only):
0 to 10 Vdc (x3) @ 10 mA max
Electrical Outputs (HX86A, HX86BA,
HX86PA Only):
Analog Outputs: 4 to 20 mA (x3)
into 500 Ω max
Standard Scaling of Analog Outputs
Model Output 1 (RH) Output 2 (Air Temp) Output 3 (Dew Point or Pressure)
HX85A 0 to 100% -20 to 120°C (-4 to 248°F) -60 to 40°C (-76 to 104°F) DP
HX85BA 0 to 100% -20 to 120°C (-4 to 248°F) 750 to 1100 mb
HX85PA 0 to 100% -20 to 120°C (-4 to 248°F) 0 to 200 psia
HX86A 0 to 100% -20 to 120°C (-4 to 248°F) -60 to 40°C (-76 to 104°F) DP
HX86BA 0 to 100% -20 to 120°C (-4 to 248°F) 750 to 1100 mb
HX86PA 0 to 100% -20 to 120°C (-4 to 248°F) 0 to 200 psia
To Order Visit omega.com/hx80a for Pricing and Details
Model No. Description
HX85A
HX85BA
HX85PA
HX86A
HX86BA
HX86PA
Accessories
Model No. Description
PSU-93
PSR-24S
PSR-24L
PSR-24L-230
HX86A-DIS
HX80-SENSOR
HXP80-SENSOR
HXB80-SENSOR
HX80-CHAMBER
Come complete with operator’s manual (on CD) and NIST certificate.
Ordering Example: HX85A, RH/air temperature/dew point transmitter with 0 to 10 Vdc outputs, and PSR-24S, regulated power supply
90 to 264 Vac input with 24 Vdc output.
RH/temperature/dew point transmitter, 0 to 10 Vdc outputs
RH/temperature/barometric pressure transmitter, 0 to 10 Vdc outputs
RH/temperature/pressure transmitter, 0 to 10 Vdc outputs
RH/temperature/dew point transmitter with remote display and 2 alarms, 4 to 20 mA outputs
RH/temperature/barometric transmitter with remote display and 2 alarms, 4 to 20 mA outputs
RH/temperature/pressure transmitter with remote display and 2 alarms, 4 to 20 mA outputs
Unregulated power supply, 16 to 23 Vdc, 300 mA max, screw terminal
Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA,
screw terminals, UL
Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA,
screw terminals, UL
Regulated power supply, European plug, 230 Vac input, 24 Vdc output, 400 mA,
stripped leads, CE
Remote electronics module with two-line LCD digital display, three 4 to 20 mA analog outputs,
RS232C, and 2 programmable alarm relays; this display module can be added to existing
probes (HX86A series) in the field
Field-replaceable sensor module for RH/temperature
Field-replaceable sensor module for RH/temperature/pressure
Field-replaceable sensor module for RH/temperature/barometric pressure
Sample chamber with inlet and outlet fittings
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