Omega Products HX85PA User Manual

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.

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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

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)

⁄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, 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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