Kahn Optisure Remote User manual
Optisure Remote
Chilled Mirror Hygrometer
User’s Manual
March 2018
Optisure Remote
Optisure Remote User’s Manual
Kahn Instruments iii
1 INTRODUCTION ................................................................................................1
2 INSTALLATION ..................................................................................................2
2.1 Safety................................................................................................................ 2
2.2 Unpacking the Instrument................................................................................... 2
2.3 Operating Requirements ..................................................................................... 3
2.3.1 Environmental Requirements ......................................................................... 3
2.3.2 Electrical Requirements ................................................................................. 3
2.4 Exterior Layout................................................................................................... 3
2.4.1 Front Panel................................................................................................... 3
2.4.2 Rear Panel.................................................................................................... 4
2.5 Rear Panel Connections ...................................................................................... 6
2.5.1 Power Supply Input....................................................................................... 6
2.5.2 Analog Output Connections............................................................................ 7
2.5.3 Alarm Output Connections ............................................................................. 8
2.5.4 Dew-Point Sensor Connection ...................................................................... 10
2.5.5 Remote PRT Probe ..................................................................................... 10
2.5.6 USB Communications Port Connector............................................................ 11
2.5.7 Ethernet Port (Optional) .............................................................................. 11
2.5.8 RS232/485 Port (Optional)........................................................................... 12
2.5.9 Remote Pressure Transducer (Optional) ........................................................ 13
3 USER INTERFACE ............................................................................................14
3.1 Main Display .................................................................................................... 14
3.1.1 Main Screen................................................................................................ 14
4.1 Operating Cycle................................................................................................ 22
4.2 Operating Guide ............................................................................................... 23
4.2.1 Description ................................................................................................. 23
4.2.2 Operating Practice....................................................................................... 23
4.4 First Time Operation......................................................................................... 29
4.5 Operational Functions ....................................................................................... 29
4.5.1 DCC Function.............................................................................................. 29
4.5.2 MAXCOOL Function ..................................................................................... 29
4.5.3 Frost Assurance Technology (FAST) .............................................................. 30
4.5.4 STANDBY Mode........................................................................................... 30
4.5.5 Parameter Conversions & Pressure Compensation ......................................... 30
4.5.6 Data Logging.............................................................................................. 30
4.5.7 Minimum measurable dew points ................................................................. 31
5 MAINTENANCE................................................................................................32
5.1 Safety.............................................................................................................. 32
5.2 Fuse Replacement ........................................................................................... 32
5.3 Sensor Mirror Cleaning...................................................................................... 33
6 CALIBRATION..................................................................................................34
6.1 Traceability ...................................................................................................... 34
Contents
Safety ................................................................................................................................ v
Electrical Safety ........................................................................................................... v
Pressure Safety............................................................................................................ v
Repair ........................................................................................................................ v
Calibration................................................................................................................... v
Abbreviations......................................................................................................................vi
Warnings ............................................................................................................................vi
Optisure Remote User’s Manual
iv March 2018
Tables
Table 1 Front Panel .................................................................................................4
Table 2 Rear Panel Controls .....................................................................................5
Table 3 Main Screen Layout ................................................................................... 15
Table 4 Operational Status Display .........................................................................17
Table 5 Sensor Status Display ................................................................................17
Table 6 DCC Menu ................................................................................................18
Table 7 Logging Menu ...........................................................................................19
Table 8 Outputs Menu ...........................................................................................20
Table 9 Alarm Menu ..............................................................................................20
Table 10 Display Menu ............................................................................................21
Table 11 Network Settings.......................................................................................21
Table 12 Calculated Parameters ...............................................................................30
Appendices
Appendix A Technical Specications..............................................................................35
A.1 Dimensions .................................................................................38
Appendix B Application Software..................................................................................39
Figures
Figure 1 Front Panel ................................................................................................3
Figure 2 Rear Panel .................................................................................................4
Figure 3 Power Supply Input ....................................................................................6
Figure 4 Analog Output Connectors ..........................................................................7
Figure 5 Alarm Output Connectors............................................................................9
Figure 6 Dew-Point Sensor Connection....................................................................10
Figure 8 USB Port Connection.................................................................................11
Figure 9 Ethernet Port ...........................................................................................11
Figure 10 Remote Pressure Transducer Connection....................................................13
Figure 11 Main Screen.............................................................................................14
Figure 12 Main Screen Layout ..................................................................................14
Figure 13 Menu Structure ........................................................................................16
Figure 14 DCC Screen..............................................................................................17
Figure 15 Logging Screen ........................................................................................18
Figure 16 Outputs Screen ........................................................................................19
Figure 17 Alarm Screen ...........................................................................................20
Figure 18 Network settings ......................................................................................21
Figure 19 Typical Operating Cycle.............................................................................22
Figure 20 Room Measurement Example ....................................................................24
Figure 21 Sample Block ...........................................................................................25
Figure 22 Material permeability comparison...............................................................26
Figure 23 Formation of condensation........................................................................27
Figure 24 Miniumum Measurable Dew Points.............................................................31
Figure 25 Power Supply Fuse Replacement ...............................................................32
Figure 26 Sensor Mirror Cleaning..............................................................................33
Figure 27 Typical Calibration Certicate.....................................................................34
Figure 28 Optisure Remote Dimensions.....................................................................38
Figure 29 Sensor Dimensions ...................................................................................38
Optisure Remote User’s Manual
Kahn Instruments v
Safety
The manufacturer has designed this equipment to be safe when operated using the procedures
detailed in this manual. The user must not use this equipment for any other purpose than that
stated. Do not apply values greater than the maximum value stated.
This manual contains operating and safety instructions, which must be followed to insure the safe
operation and to maintain the equipment in a safe condition. The safety instructions are either
warnings or cautions issued to protect the user and the equipment from injury or damage. Use
qualied personnel and good engineering practice for all procedures in this manual.
Electrical Safety
The instrument is designed to be completely safe when used with options and accessories supplied
by the manufacturer for use with the instrument. The input power supply voltage limits are 85 to
264 V AC, 47/63 Hz. Refer to Appendix A - Technical Specications.
Pressure Safety
DO NOT permit pressures greater than the safe working pressure to be applied to the sensor. The
specied safe working pressure is 290 psig (20 barg) or 3625psig (250barg) for the high pressure
version. Refer to Appendix A - Technical Specications.
Application of gas pressures higher than the specied maximum will result in potential damage
and may render the instrument unsafe and in a condition of incorrect functionality. Only personnel
trained in the safe handling of high pressure gases should be allowed to operate this instrument.
Refer to Appendix A - Technical Specications.
Repair
The instrument must be repaired by the manufacturer. Please contact Kahn Instruments at parts.
Calibration
The recommended calibration interval for the Optisure Remote is one year, unless otherwise specied
by Kahn Instruments. The instrument should be returned to Kahn (please contact parts.service@
kahn.com).
Optisure Remote User’s Manual
vi March 2018
Abbreviations
The following abbreviations are used in this manual:
DCC Dynamic Contamination Correction
FAST Frost Assurance System Technology
MAXCOOL Maximum Sensor Cooling
AC alternating current
atm pressure unit (atmosphere)
bar pressure unit (=100 kP or 0.987 atm)
°C degrees Celsius
°F degrees Fahrenheit
COM common
DC direct current
dp dew point
ENT enter (select)
EU European Union
ft foot (feet)
g/kg grams per kilogram
g/m3grams per cubic meter
HMI Human Machine Interface
Hz Hertz
IEC International Electrotechnical Commission
in inch(es)
Nl/min normal liters per minute
lb pound
mA milliampere
max maximum
min minute(s)
mV millivolt(s)
N/C normally closed
N/O normally open
No number
ppmVparts per million (by volume)
ppmWparts per million (by weight)
PRT Platinum resistance thermometer (typically type Pt100)
psig pound(s) per square inch (gauge)
rh relative humidity
RTU Remote Terminal Unit
scfh standard cubic feet per hour
SD card storage device card (memory card for storing datalog les)
sec second(s)
temp temperature
USB Universal Serial Bus
V Volts
Warnings
The following general warning listed below is applicable to this instrument. It is repeated
in the text in the appropriate locations.
!
Where this hazard warning symbol appears in the following
sections, it is used to indicate areas where potentially
hazardous operations need to be carried out.
Optisure Remote User’s Manual
Kahn Instruments vii
NOTES
Optisure Remote User’s Manual
Kahn Instruments 1
INTRODUCTION
1 INTRODUCTION
The Optisure Remote Hygrometer is a high precision instrument used for the measurement
of moisture content in air and other gases. Relative humidity and other calculated
parameters based on dew point, pressure and temperature of the sample gas can also
be displayed. Two pressure options are available: low pressure, allowing measurements
at a maximum of 290psig (20barg), and high pressure, allowing measurements at a
maximum of 3625psig (250barg).
The Optisure Remote employs an advanced chilled mirror technique which enables it to
directly measure dew points in the range -40 to +194°F (-40 to +90°C ); -40 to +248°F
(-40 to +120°C) for the PEEK and Climatic sensor version.
Optisure Remote User’s Manual
2March 2018
INSTALLATION
2 INSTALLATION
2.1 Safety
!
It is essential that the installation of the electrical and gas
connections to this instrument be undertaken by competent
personnel.
2.2 Unpacking the Instrument
Open the box and unpack carefully. Save all the packing materials for the purpose of
returning the instrument for re-calibration or any warranty claims.
The accessories box should contain the following items:
• Traceable calibration certicate
• SD memory storage card
• Optics cleaning kit
• USB communications cable
• Remote Pt100 temperature probe
• IEC power cable
• Sensor cable
• Dew-point sensor
• Pressure transducer and cable (optional)
If there are any shortages please notify Kahn Instruments immediately
Optisure Remote User’s Manual
Kahn Instruments 3
INSTALLATION
2.3 Operating Requirements
2.3.1 Environmental Requirements
The operational range of the Optisure Remote sensor is dependant on the temperature of
the environment in which it is installed. The sensor is able to measure dew points down
to 90°F (60°C) below ambient temperature, and anywhere up to (but not including) the
point of condensation. At higher ambient temperatures the cooling ability of the sensor
may be slightly reduced.
2.3.2 Electrical Requirements
The Optisure Remote requires the following electrical supply:
• 85 to 264 V AC, 47/63 Hz, 100 VA max
• Alarm outputs comprise two sets of changeover relay contacts, one set for
a PROCESS alarm and one set for an INSTRUMENT FAULT. Both sets of
contacts are rated at 24 V, 1A. NOTE: This rating must not be exceeded.
2.4 Exterior Layout
The controls, indicators and connectors associated with the Optisure Remote are located
on the front and rear panels of the instrument.
2.4.1 Front Panel
Touch Screen Display
SD Slot
Figure 1
Front Panel
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