Omega Products HX86N User Manual

Environmental/Process

Air Transmitters

RH/Temperature and Dew Point
or Pressure Outputs

pressure range is (barometric
pressure, 20 to 1100 mb, operating
temperature -20 to 120°C
(-4 to 248°F), default outputs:
DP, temperature and pressure.

The HXP85 is a humidity/
temperature/high pressure stainless
steel probe with a stainless steel
sinter filter, RS232 and 0 to 10 Vdc
outputs, RH measurement range is

HX80 Series

Standard

HX80 Series is a family of humidity
probes that offers a variety of
measurement parameters
with precision accuracy: RH,
temperature, dew point, pressure
(psia), ppmv, ppmw, gr/lbs, etc.
The probe is easily adaptable for
most applications including high
temperature and high pressure
conditions.

The HX85A is a humidity/
temperature stainless steel probe
with a stainless steel sinter filter,
RS232 and 0 to 10 Vdc outputs,
RH measurement range is 5 to
95% with an accuracy of ±1%,
operating temperature -20 to 120°C
(-4 to 248°F), dew point range

-40 to 60°C (-40 to 140°F), default
outputs: RH, temperature and
dew point.

The HX85BA is a humidity/
temperature/barometric pressure
stainless steel probe with a
stainless steel sinter filter, RS232
and 0 to 10 Vdc outputs, RH
measurement range is 5 to 95%
with an accuracy of ±1%, dew point
range -40 to 60°C (-40 to 140°F),

5 to 95% with an accuracy of ±1%,
dew point range -40 to 60°C
(-40 to 140°F), pressure range is
0 to 200 psia, operating temperature

-20 to 120°C (-4 to 248°F), default
outputs: DP, temperature and
pressure.

The HX86 is a remote [1.8 m (6')
cable] humidity/high temperature
stainless steel probe with a
stainless steel sinter filter, RS232
and 4 to 20 mA outputs, RH
measurement range is 5 to 95%
with an accuracy of ±1%, dew point
range -40 to 60°C (-40 to 140°F),
operating temperature -20 to 120°C
(-4 to 248°F), default outputs:
RH, temperature and dew point,
display included.

HXB86 is a remote [1.8 m (6')
cable] humidity/high temperature/
barometric pressure stainless steel
probe with a stainless steel sinter
filter, RS232 and 4 to 20 mA
outputs, RH measurement range is
5 to 95% with an accuracy of ±1%,
dew point range -40 to 60°C
(-40 to 140°F), pressure range is
(barometric pressure, 20 to 1100 mb,
operating temperature

-20 to 120°C (-4 to 248°F), default
outputs: DP, temperature and
pressure, display included.

HXP86 is a remote [1.8 m (6')
cable] humidity/high temperature/
pressure stainless steel
probe with a stainless steel sinter

Hu-23

HX85A, shown much smaller
than actual size.

filter, RS232 and 4 to 20 mA
outputs, RH measurement range is
5 to 95% with an accuracy of ±1%,
dew point range -40 to 60°C
(-40 to 140°F), pressure range is
0 to 200 psia, operating temperature

-20 to 120°C (-4 to 248°F), default
outputs: DP, temperature and
pressure, display included.
The HX86N is a remote [1.8 m (6')
cable] humidity/high temperature
stainless steel probe with a
stainless steel sinter filter, RS232
and 0 to 10 Vdc outputs, RH
measurement range is 5 to 95%
with an accuracy of ±1%, dew point
range -40 to 60°C (-40 to 140°F),
operating temperature -20 to 120°C
(-4 to 248°F), default outputs:
RH, temperature and DP.

Common Specifications

RH Accuracy: ±1% RH
Temp Accuracy: ±0.5°C

Electrical Outputs

0 to 10 Vdc (x3) @ 10 mA max
Temp Measurement Range:

-20 to 120°C (-4 to 248°F)
RH Measurement Range: 5 to 95%

Dew Point: -40 to 60°C (-40 to 140°F)
Serial Output (All Units):

RS232C to DTE device, 19.2 kilobaud,
8 bits data, 1 stop bit, no parity;
RS232C (bi-directional)

Power Requirements: 18 to 30 Vdc
unregulated, 50 mA max

Dimensions:
Sensor: 19 x 203 mm (
Cable Length: 1.8 m (6'); consult
factory for longer lengths
Electronics Module
Outside Dimensions:
13 H x 9.4 W x 5.6 cm D
(5.1 x 3.7 x 2.2")
Mounting Centers: 11.5 x 7.9 cm
(4.53 x 3.11")

Sensor Pressure Rating: 200 psia max
Sensor Sintered Filter: 40 microns
Material: Stainless steel

HX85A (Sensor Only)

Measured Parameters: RH/temp
Output Information: RH, temp, DP
Electrical Outputs: 0 to 10 Vdc (x3)

3

⁄4 x 8")

HX85BA (Sensor Only)

Measured Parameters: RH/temp/

barometric pressure
Pressure Measurement Range:

10 to 1100 mb

Pressure Accuracy: ±5 mb
Output Information: RH, temp, pressure
Electrical Outputs: 0 to 10 Vdc (x3)

HX85PA (Sensor Only)

Measured Parameters: RH/temp/

high pressure
Pressure Measurement Range:

0 to 200 psia

Pressure Accuracy: ±0.75 psi
Output Information: RH, temp, pressure
Electrical Outputs:

0 to 10 Vdc (x3)

HX86A (Sensor with
Electronics Module)

Measured Parameters: RH/high temp
Output Information: RH, temp, DP
Electrical Outputs: 4 to 20 mA (x3)
Alarm Relays: (x2)
Digital Display: LCD, 2-line

HX86PA (Sensor with
Electronics Module)

Measured Parameters: RH/high temp/

absolute pressure

Pressure Measurement Range:

0 to 200 psia

Pressure Accuracy: ±0.75 psi
Output Information: RH, temp, pressure
Electrical Outputs: 4 to 20 mA (x3)
Alarm Relays: (x2)

HXB86BA (Sensor with
Electronics Module)

Measured Parameters: RH/high temp/

barometric pressure
Pressure Measurement Range:

10 to 1100 mb

Pressure Accuracy: ±5 mb
Output Information: RH, temp, pressure
Electrical Outputs: 4 to 20 mA (x3)
Alarm Relays: (x2)
Digital Display: LCD, 2-line

HX86A

HX86N (Sensor Only)

Measured Parameters:

RH/high temp

Output Information: RH, temp, DP
Electrical Outputs: 0 to 10 Vdc (x3)

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To Order visit omega.com/hx85 for Pricing and Details

Model No. Description
HX85A RH/DP/temp transmitter, 0 to 10 Vdc outputs, RS232 (bi-directional)
HX85BA RH/temp/bar transmitter, 0 to 10 Vdc outputs, RS232 (bi-directional)
HX85PA RH/temp/press transmitter, 0 to 10 Vdc outputs, RS232 (bi-directional)
HX86A RH/DP/high temp transmitter with remote display, two alarms, process outputs, RS232
HX86PA RH/press/high temp transmitter with remote display, two alarms, process outputs, RS232
HX86BA

RS232
HX86N RH/DP/high temp transmitter, 0 to 10 Vdc outputs
HX80-DIS Remote display, two alarms, process outputs
PSU-93 Unregulated power supply, 16 to 23 Vdc, 300 mA max, screw terminal
PSR-24S Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA, screw

terminals, UL
PSR-24L Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA, stripped

leads, UL
PSR-24L-230 Regulated power supply, European plug, 230 Vac input, 24 Vdc output, 400 mA, stripped

leads, CE
HX80B-SENSOR Replacement sensor modules for HX85BA
HX80P-SENSOR Replacement sensor modules for HX85PA

Comes complete with operator’s manual and NIST certificate.
Ordering Examples: HXP85PA, RH/temp and pressure transmitter with 0 to 10 Vdc outputs, and PSU-93, unregulated power supply, 16 to

23 Vdc, 300 mA max, screw terminal.
HX86PA, RH/high temp and pressure transmitter with 4 to 20 mA outputs, and PSU-93, unregulated power supply, 16 to 23 Vdc, 300 mA max,

screw terminal.

RH/barometric pressure/high temp transmitter with remote display, two alarms, process outputs,

Hu-24