Omega Products HXP86 Installation Manual
HX80 SERIES
OPERATORS MANUAL
MADE IN
Rev. B
May 2009
HX80 SERIES
QUICK STARTUP GUIDE – Page 1
STARTUP
WHEN USING PROBE ONLY:
1. Mount the Probe in position to measure the desired gas.
2. Connect Probe wiring as shown below:
Notes:
Connect only the Outputs desired. See the HX80 Manual for details.
Do not apply DC Power until all wiring is completed.
Power Supply – Pos. Yellow
Power Supply – Neg. Green
Serial Output – TX Blue
Serial Output – RX White
ITEM COLOR CODE
Output 1 – Pos. Brown
Output 2 – Pos. Red
Output 3 – Pos. Orange
Output Common Black
Serial Common Green
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HX80 SERIES
QUICK STARTUP GUIDE – Page 2
WHEN USING PROBE WITH ELECTRONICS UNIT:
1. Mount the Probe and Electronics Unit.
2. Connect cable from Probe to Electronics Unit
(if applicable).
3. Connect Power Supply to Electronics Unit.
4. Connect Analog Outputs of Electronics Unit.
5. Connect Digital Output of Electronics Unit.
6. Connect Alarm Relays of Electronics Unit.
7. Connect RS-232 Serial Port of Electronics Unit.
ITEM CONN. TERM.
Power Supply (+) J8 2
Power Supply (-) J8 1
Analog Out 1 (+) J9 1
Analog Out 1 (-) J9 2
Analog Out 2 (+) J9 3
Analog Out 2 (-) J9 4
Analog Out 3 (+) J9 5
Analog Out 3 (-) J9 6
Alarm Relay 1 J2 1
Alarm Relay 1 J2 2
Alarm Relay 2 J2 3
Alarm Relay 2 J2 4
RS-232 TX J6 2
RS-232 RX J6 3
RS-232 RTN J6 5
Notes:
Connect only the Outputs desired. See the HX80 Manual for details.
Do not apply DC Power until all wiring is completed.
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TABLE OF CONTENTS Page
1.0 Quick Startup 1
List of Illustrations 4
List of Tables 4
2.0 Introduction 5
2.1 General Description 5
2.2 Specifications Summary 6
2.3 Model Descriptions 7
2.4 Available Options 7
3.0 Installation 9
3.1 Mounting the Probe 9
3.2 Mounting the Electronics Unit 10
3.3 Electrical Wiring 10
3.3.1 Probe Only 10
3.3.2 Probe with Electronics 11
4.0 Basic Block Diagram 14
4.1 Probe Assembly 14
4.2 Electronics Module 15
4.3 Complete System 15
5.0 Operation 17
5.1 Initial Bench Testing 17
5.2 Normal Operation 17
5.3 Factory Default Conditions 17
5.4 RS-232 Serial Port 19
5.4.1 Serial Port Setup 19
5.4.2 Changing the Digital Display 19
5.4.3 Changing the Output Ranges 20
5.4.4 Programming the Alarm Relays 21
5.4.5 Calibrating the Analog Outputs 22
6.0 Maintenance 23
6.1 Sensor Circuit Board 23
6.1.1 Replacing the Sensor Board 23
6.1.2 Removing Components 23
6.1.3 Sensor Reassembly 24
7.0 Specifications 25
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LIST OF ILLUSTRATIONS Page
2-1 Some HX80 Configurations 5
3-1 System with Sample Cell 9
3-2 Installing the Mounting Lugs 10
3-3 Probe Wiring Diagram 11
3-4 Electronics Unit Wiring 13
4-1 Probe Block Diagram 14
4-2 System Block Diagram 16
6-1 Removing Retaining Ring 23
6-2 Sensor Exploded View 24
LIST OF TABLES Page
2-1 Standard Configurations 7
2-2 Measurement Ranges 8
3-1 Probe Wiring 11
3-2 Electronics Wiring 12
3-3 Serial Port Wiring 12
5-1 Standard Output Scaling 18
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2.0 INTRODUCTION
2.1 GENERAL DESCRIPTION
The HX80 Series is a family of humidity probes and electronic modules that offer a
variety of measurement parameters with high accuracy. In addition to Percent Relative
Humidity (%RH), probes are available to also measure Temperature and Pressure.
Electrical analog and digital outputs are provided for not only these measured
parameters, but may be provided for microprocessor- computed parameters as well.
These include parts-per-million by volume (ppmv), parts-per-million by weight (ppmw),
grains of water per pound of dry gas (gr/lb), and others.
The HX80 system is designed for ease of installation and operation. Field-replaceable
sensor modules have standardized outputs for interchangeability without recalibration.
The power requirement is a common unregulated DC power supply. User-available
electrical outputs include linear analog voltage (or optional current), a digital bidirectional serial port, and alarm relays. Mounting options include Wall Mount, Remote
Mount, and Duct Mount configurations. Additional options include high temperature and
high pressure probes. A remote or local Display Unit (Type DIS) is available, with a
two-line LCD display, alarm relays, and three 4 to 20 mA electrical outputs.
Figure 3-1 Some of the Available HX80 Configurations
a. Stand-alone Probe
b. Remote Mount with Display
Option
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2.2 SPECIFICATIONS SUMMARY
(See Specifications for additional information)
2.2.1 STAND-ALONE PROBE
Analog Outputs: 0 – 10 Vdc (X3)
Digital Output: RS-232C
Power Supply: 18 to 30 Vdc, unregulated, 50 mA max.
RH Accuracy: +/- 1% nominal
Temp. Accuracy: +/- 0.5°C
Mounting: Cable Length: 6 feet
Fitting: ¾ inch stainless steel
NPT thermocouple fitting
Dimensions: Length: 8 inches
Diameter: ¾ inch
Materials: Housing: Stainless Steel
Filter: Sintered Stainless Steel (removable)
2.2.2 PROBE WITH ELECTRONICS UNIT
Analog Outputs: 4 to 20 mA (X3)
Digital Output: RS-232C, bi-directional
Alarm Relays: Form A (SPST, NO) X2
Power Supply: 18 to 30 Vdc unregulated, 50 mA max.
RH Accuracy: +/- 1% nominal
Temp. Accuracy: +/- 0.5°C
Electronics Housing Protection:
IP66 (NEMA 4X) Dust tight and moisture resistant
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Table 2-1 HX80 Series, Standard Available Configurations
MODEL NO.
HX85 X
HXB85 X
HXP85 X
HX86 X
HXB86 X
HXP86 X
HX86N x
SENSOR ONLY
SENSOR WITH
ELECTRONICS MODULE
2.3 HX80 SERIES MODEL DESCRIPTIONS
HX85 – A Humidity/Temperature probe providing RH, Dew Point, and Temperature
outputs.
HXB85 – A Humidity/Temperature/Barometric Pressure probe providing RH,
Temperature, and Pressure outputs.
HXP85 – A Humidity/Temperature/High Pressure probe providing RH, Temperature,
and Pressure outputs.
HX86 – A Humidity/ High Temperature probe providing RH, Temperature, and Dew
Point outputs, with remote Electronics Unit including Digital Display.
HXB86 – A Humidity/High Temperature/Barometric Pressure probe providing RH,
Temperature, and Pressure outputs, with remote Electronics Unit including Digital
Display.
HXP86 – A Humidity/High Temperature/High Pressure probe providing RH,
Temperature, and Pressure outputs, with remote Electronics Unit including Digital
Display.
HX86N – Identical to HX86, with Remote Electronics Unit, but with no Digital Display.
2.4 AVAILABLE OPTIONS
HX80-DIS – Remote electronics module with two-line LCD digital display, three 4 to 20
mA analog outputs, RS-232C, and two programmable alarm relays. This unit can be
added to existing Probes in the field.
HX80-NDIS – Similar to HX80-DIS but without Digital Display
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