HX80 SERIES
OPERATORS MANUAL
Rev. E
January 2012
MADE IN
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 by cutting off connector or using a mating connector, as shown below:
ITEM |
RIBBON CABLE WIRE # |
Power Supply – Pos. |
7 |
Power Supply – Neg. |
1 (blue tracer) |
Output 1 – Pos. |
2 |
Output 2 – Pos. |
6 |
Output 3 – Pos. |
8 |
Output Common |
4 |
Serial Output – TX |
5 |
Serial Output – RX |
3 |
Notes: Connect only the Outputs desired. See drawing in the HTPB Manual for further connection details.
Do not apply DC Power until all wiring is completed.
1
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.
2
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 |
|
8 |
3.0 Installation |
|
10 |
|
3.1 |
Mounting the Probe |
|
10 |
3.2 |
Mounting the Electronics Unit |
|
11 |
3.3 |
Electrical Wiring |
|
11 |
|
3.3.1 Probe Only |
|
11 |
|
3.3.2 Probe with Electronics |
|
13 |
4.0 Basic Block Diagram |
|
16 |
|
4.1 |
Probe Assembly |
|
16 |
4.2 |
Electronics Module |
|
17 |
4.3 |
Complete System |
|
17 |
5.0 Operation |
|
19 |
|
5.1 |
Initial Bench Testing |
|
19 |
5.2 |
Normal Operation |
|
19 |
5.3 |
Factory Default Conditions |
|
19 |
5.4 |
RS-232 Serial Port |
|
21 |
|
5.4.1 Serial Port Setup |
|
21 |
|
5.4.2 Changing the Digital Display |
|
21 |
|
5.4.3 Changing the Output Ranges |
|
22 |
|
5.4.4 Programming the Alarm Relays |
23 |
|
|
5.4.5 Calibrating the Analog Outputs |
24 |
|
6.0 Maintenance |
|
25 |
|
6.1 |
Sensor Circuit Board |
|
25 |
|
6.1.1 Replacing the Sensor Board |
|
25 |
|
6.1.2 Removing Components |
|
25 |
|
6.1.3 Sensor Reassembly |
|
26 |
7.0 Specifications |
|
27 |
|
3
LIST OF ILLUSTRATIONS |
Page |
|
2-1 Some HX80 Configurations |
5 |
|
3-1 System with Sample Cell |
10 |
|
3-2 |
Installing the Mounting Lugs |
11 |
3-3 |
Probe Wiring, Ribbon Cable |
12 |
3-3a Probe Wiring |
13 |
|
3-4 |
Electronics Unit Wiring |
15 |
4-1 Probe Block Diagram |
16 |
|
4-2 System Block Diagram |
18 |
|
6-1 Removing Retaining Ring |
25 |
|
6-2 |
Sensor Exploded View |
26 |
LIST OF TABLES |
Page |
|
2-1 |
Standard Configurations |
7 |
2-2 Measurement Ranges |
8 |
|
3-1 |
Probe Wiring, Ribbon Cable |
12 |
3-1a Probe Wiring |
13 |
|
3-2 |
Electronics Wiring |
14 |
3-3 |
Serial Port Wiring |
14 |
5-1 |
Standard Output Scaling |
20 |
4
2.0INTRODUCTION
2.1GENERAL 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 microprocessorcomputed 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
5
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
6
Table 2-1 HX80 Series, Standard Available Configurations
|
|
SENSOR WITH |
MODEL NO. |
SENSOR ONLY |
ELECTRONICS MODULE |
|
|
|
HX85 |
X |
|
HXB85 |
X |
|
HXP85 |
X |
|
HX86 |
|
X |
HXB86 |
|
X |
HXP86 |
|
X |
HX86N |
x |
|
HX85A |
x |
|
HX85BA |
x |
|
HX85PA |
x |
|
HX86A |
|
x |
HX86BA |
|
x |
HX86PA |
|
x |
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.
HX85A – A Humidity/Temperature probe providing RH, Dew Point, and Temperature outputs with an operating temperature up to 120C.
7
HX85BA – A Humidity/Temperature/Ba rometric Pressure probe providing RH, Temperature, and Pressure outputs with an operating temperature up to 120C.
HX85PA – A Humidity/Temperature/High Pressure probe providing RH, Temperature, and Pressure outputs with an operating temperature up to 120C.
HX86A – A Humidity/ High Temperature probe providing RH, Temperature, and Dew
Point outputs, with remote Electronics Unit including Digital Display with an operating temperature up to 120C.
HX86BA – A Humidity/High Temperature/Barometric Pressure probe providing RH, Temperature, and Pressure outputs, with remote Electronics Unit including Digital
Display with an operating temperature up to 120C.
HX86PA – A Humidity/High Temperature/High Pressure probe providing RH, Temperature, and Pressure outputs, with remote Electronics Unit including Digital Display with an operating temperature up to 120C
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
HX80SENSOR – Field-replaceable sensor module for RH/Temperature. Interchangeability accurate to published specification.
HXP80-SENSOR – Field-replaceable sensor module for RH/Temperature/Pressure. Interchangeability accurate to published specification.
HXB80-SENSOR – Field-replaceable sensor module for RH/Temperature/Barometric Pressure. Interchangeability accurate to published specification.
HX80-CHAMBER – Sample chamber with inlet and outlet fittings.
Table 2-2 HX80 Series Sensor Actual Measurement Ranges.
MODEL NO. |
OUTPUT 1 |
OUTPUT 2 |
OUTPUT 3 |
|
|
|
|
HX85 |
PERCENT RH |
AIR TEMP. |
DEW POINT |
MEASUREMENT RANGE |
5 to 95% |
-20 to +70ºC |
-60 to +30ºC |
|
|
|
|
HXB85 |
PERCENT RH |
AIR TEMP. |
BAR. PRESSURE |
|
8 |
|
|
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