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HygroPort I.S. User’s Manual 

 

Calibration Method 

 

WARNING:  

These procedures require the use of specialized test  

equipment and calibration adjustments should only  

be carried out by qualified personnel. If not correctly  

carried out, the instrument’s calibration can be lost. 

 

The calibration procedure for the instrument is as follows: 

1. 

Turn on the instrument, allow the initialization period to complete and allow 

sufficient time for it to stabilize. 

2. 

Insure the instrument is set up with sample gas as 

AIR

 and operating pressure as 

ATMOS

3. 

Insure that the temperature units are set up as 

°C

  and  the  primary  display  is 

reading 

Dewpoint

4. 

Insure that all sample tubing and connectors are made from stainless steel and are 

of suitable quality.  Remove the sintered filter from the inlet of the HygroPort I.S. 

5. 

Connect the HygroPort I.S. to a dewpoint generator and establish a gas flow 

           through the instrument. 
6. 

Apply a dewpoint of -100°C and allow the instrument’s reading to stabilize for a 

minimum of 96 hours (including dry down). 

Measurement OK

 must be displayed 

in the status line when readings are taken. 

7. 

Record the applied REF dewpoint and the corresponding HygroPort I.S. display reading. 

8. 

Repeat steps 5 and 6 at all the required dewpoint values over the operating range 

of the instrument, as shown in Table 6.1, allowing the stabilization times shown 

before recording consecutive readings.  

 
A set of results similar, for example, to that shown in Table 6.1 could be generated over the 

calibration range of the instrument. 

 

DP REF 

Stabilize  HygroPort I.S. 

DP REF 

Stabilize 

HygroPort I.S.

  

°C 

Time 

Rdg 

°C 

Time 

Rdg  

(Hours) 

°C 

(Hours) 

°C 

-100 

96 

-99.8 

-30 

-30.1 

-80 

12 

-79.7 

-20 

-19.9 

-70 

-70 

-10 

-10 

-60 

-59.8 

0.1 

-50 

-49.8 

10 

10 

-40 

-39.9 

20 

20 

Table 7.1 

Example of calibration run readings 

 

Issue 6, December 2019 

44 

Kahn Instruments

7.2  
 
 

Содержание HygroPort I.S.

Страница 1: ...HygroPort I S Hygrometer User s Manual KAHN INSTRUMENTS INC 885 Wells Road Wethersfield CT 06109 Phone 860 529 8643 Fax 860 529 1895 E mail hygros kahn com www kahn com...

Страница 2: ...Inside front cover blank...

Страница 3: ...HygroPort I S User s Manual HygroPort I S Advanced Dewpoint Hygrometer for use in hazardous areas Issue 6 December 2019 iii Kahn Instruments...

Страница 4: ...tings 2 6 2 Logging 2 6 3 Bluetooth Settings 2 6 4 External Sensor Interface 2 6 5 Real Time Clock Settings 2 6 6 HMI Settings 2 6 7 Calibration 2 6 8 Info 2 6 9 Chart Options 3 SET UP 3 1 Safety 3 2...

Страница 5: ...EMENT PRACTICE 40 6 1 General Operational Guidelines 41 7 CALIBRATION 7 1 Traceability 7 2 Calibration Method 7 3 Calibration Correction Method 8 PREPARATION FOR SHIPPING 47 Appendices Appendix A Tech...

Страница 6: ...list Figure 2 19 Current log file Figure 3 1 Packing method Figure 3 2 Gas port adaptors Figure 3 3 Accessories Figure 3 4 Gas coupling examples for atmospheric pressure measurement Figure 3 8 Connec...

Страница 7: ...7 Real time clock settings Table 2 8 HMI settings Table 3 1 Adaptor fittings Table 4 1 HygroPort I S default parameters Table 7 1 Example of calibration run readings Table C 1 Status register flags Ap...

Страница 8: ...tage limits for the battery charger supplied with the instrument are 100 V AC to 240 V AC 47 to 63Hz Refer to Appendix A NOTE No other battery charger unit other than that supplied with the instrument...

Страница 9: ...ception which may be determined by turning the product on off the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving ante...

Страница 10: ...t ft foot feet Hz Hertz In inch es in2 square inch es N C not connected no connection kg kilogram s k kilohm s lb pound LSD least significant digit m meter s mA milli Ampere max maximum min minute s m...

Страница 11: ...plicable 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 ha...

Страница 12: ...t data in large format characters and simultaneously provides a primary display of real time dewpoint readings and a secondary display in smaller characters for the external transmitter input If no ex...

Страница 13: ...HygroPort I S User s Manual Figure 1 1 HygroPort I S Advanced Dewpoint Hygrometer for use in hazardous areas Issue 6 December 2019 2 Kahn Instruments...

Страница 14: ...hygrometer comprising the gas ports battery charger input connector and input connector for the external transmitter are all made to the top panel Figure 2 1 shows the layout of these controls and Tab...

Страница 15: ...nnector for external transmitter By default this signal is displayed in the secondary display area but may be configured to be displayed as the primary display refer to Section 2 6 6 If no external in...

Страница 16: ...enus this key is used to highlight and select options and to accept entered values The passcode pin is 7316 Scroll down key From the Passcode entry page this key is used to reduce the value of the hig...

Страница 17: ...right key Within the Logging datalog sub menu levels where the entry of alpha numeric characters is required this key is used to shift the insertion point right in the file name entry field At each po...

Страница 18: ...shows internal dewpoint if external sensor reading is set as primary display Battery charge indicator icon Flashes when the battery voltage drops below 4V indicating that the battery needs charging A...

Страница 19: ...layed in the status area The keyboard with the exception of the scroll up and scroll down keys is locked out as indicated by the keyboard lock icon item 4 in Figure 2 3 until the initialization period...

Страница 20: ...tializing 04 32 Initializing internal sensor Moisture Content Internal 25 842 ppmv Measurement in progress Moisture Content Internal 19 216 Measurement OK Figure 2 4 Instrument start up sequence Issue...

Страница 21: ...bottom and left to right With the first digit of the passcode entry screen highlighted in reverse video enter the first digit 7 by pressing the down key three times Pressing the up key seven times wo...

Страница 22: ...etup menu 7 3 1 6 SETTINGS CLOCK LOGGING HMI BLUETOOTH CALIBRATION EXTERNAL INFO Main Menu settings selected Passcode entry Issue 6 December 2019 11 Kahn Instruments Internal 12 7 C Temp Dewpoint 6 9...

Страница 23: ...gain which returns the operator to the passcode entry screen Pressing the scroll left key again returns to the main display The following sections describe the various second level sub menus From the...

Страница 24: ...Y DISP POINT REF MDM300 INFO PAGE LEGEND Up Down Keys Left Right Keys Figure 2 7 HygroPort I S menu structure Issue 6 December 2019 13 Kahn Instruments NO LOGGING YES Scroll Menu Items Scroll Unit to...

Страница 25: ...r PRESS Atmospheric or Pressure Indicates if the primary display sensor is at atmospheric or pressure C F or K sets system temperature units psig bar KPa bara psia MPa sets system pressure units Air N...

Страница 26: ...use the scroll down key to change the field value to STARTED Press the Enter key to start the logging cycle Table 2 4 details the field values To quit press the scroll left key Parameter variable opti...

Страница 27: ...efore enabling Bluetooth as described above enter the NAME field using the scroll down key and press the Enter key With the NAME f iield now highlighted using a combination of the scroll up scroll dow...

Страница 28: ...ure can also be selected This pressure is used in the calculation of dew point at pressure moisture content and Table 2 6 details the field values To quit press the scroll left key Parameter variable...

Страница 29: ...pical real time clock set up screen and shows the selection and changing of the HOUR parameter from 9 32 to 10 32 Table 2 7 details the field values To quit press the scroll left key Parameter variabl...

Страница 30: ...ft key Parameter variable options 0 to 100 in 5 increments Scroll value with the scroll up or down keys accept the selection with the Enter key 0 to 100 in 5 increments Scroll value with the scroll up...

Страница 31: ...all the changes within the look up table have been made they are accepted by pressing the Enter key No changes are then implemented until the scroll right key is pressed at the Exit screen To exit wit...

Страница 32: ...hart without re setting by pressing the scroll left key A typical key sequence is shown in Figure 2 17 If the instrument is not logging pressing the scroll right key while the chart is displayed provi...

Страница 33: ...ry INT display parameter that is being logged i e RH the secondary display EXT being logged i e EXT_DP and the logging interval i e 05 Sec Additionally the current date D in YYMMDD format 090327 and t...

Страница 34: ...packed into a standard box and the method of unpacking is shown in Figure 3 1 4 3 2 1 Figure 3 1 Packing method Open the box 1 and unpack carefully Remove the HygroPort I S instrument 2 the User s Man...

Страница 35: ...atic materials suitable for use in hazardous areas optional 8 2 5 mm Allen Key not shown Three gas input port adaptors item 4 are provided two with a large orifice and one with a small orifice Dependi...

Страница 36: ...HygroPort I S User s Manual 3 4 5 Accessories Issue 6 December 2019 25 Kahn Instruments 1 6 2 7 Figure 3 3...

Страница 37: ...roPort I S is supplied with a sintered disc filter installed in the Gas In port and with a large bore orifice fitting installed in each of the gas ports These fittings have an 1 8 NPT female thread to...

Страница 38: ...d to the instrument as per Table 3 1 and Figure 3 4 1 Install the required orifice fittings 2 Install any adaptors that might be required 3 If the small bore orifice fitting is not used then one of th...

Страница 39: ...l provide approximately 24 hours of continuous operation when fully charged A graphical display of battery charge state is provided and an audible warning is given as the battery approaches full disch...

Страница 40: ...this indicator starts to rapidly flash green indicating that a fast charge cycle approximately 2 hours is now in progress As the battery approaches full charge the LED starts to flash green more slowl...

Страница 41: ...e relevant part of Section 2 which details the method of changing these default values 4 2 General Operational Information The instrument is designed to operate in a flowing gas stream of between 0 4...

Страница 42: ...PRIMARY DISP CALIBRATION INFO Table 4 1 Issue 6 December 2019 31 Kahn Instruments Associated Section Reference Section 2 6 1 Figure 2 8 Section 2 6 2 Figure 2 9 Section 2 6 3 Figure 2 10 Section 2 6...

Страница 43: ...Y DISP POINT REF MDM300 INFO PAGE LEGEND Up Down Keys Left Right Keys Figure 4 1 HygroPort I S menu structure Issue 6 December 2019 32 Kahn Instruments NO LOGGING YES Scroll Menu Items Scroll Unit to...

Страница 44: ...nt mode it is normal to see the displayed moisture value drop rapidly below undershoot the actual moisture value before returning to a stable reading 6 The instrument display will show an initial meas...

Страница 45: ...he instrument will commence Measurement mode During the first few minutes of Measurement mode it is normal to see the displayed moisture value drop rapidly below undershoot the actual moisture value b...

Страница 46: ...ry space available by pressing the scroll right key when the chart is displayed An example is shown in Figure 4 4 1 txt 1K 0130 1318 11 files 4 txt 4K 0315 1738 Not logging press ENTER to setup loggin...

Страница 47: ...ng Menu or from the Chart option see Section 4 4 1 Both methods of entry lead to the same set up menu as shown in Figure 4 6 FILE NAME LOGGING PARAMETER DEWP LOG INTERVAL 5 s START STOPPED Figure 4 6...

Страница 48: ...key The instrument is now in Bluetooth mode NOTE When the instrument is in Bluetooth mode the Bluetooth screen remains displayed and no other menu options can be selected To quit the Bluetooth mode ch...

Страница 49: ...HygroPort I S User s Manual 7 3 1 6 Figure 4 8 Typical Bluetooth pairing sequence Issue 6 December 2019 38 Kahn Instruments...

Страница 50: ...uetooth see Section 4 6 for details The application software allows modification of all the instrument parameters from the connected PC The settings currently stored on the HygroPort I S can be downlo...

Страница 51: ...w rates which the sensor requires Excessive f llow restriction can cause back pressure across the sensor leading to a discrepancy between the readings recorded and those expected Measurement of Dewpoi...

Страница 52: ...rom the gas sample Particulate matter can damage the sensors If particulate matter such as degraded desiccant pipe scale and rust are likely to be present in the sample gas use a particulate in line f...

Страница 53: ...that only water vapor is present in the sample Once present on the surface of the sensors oil will remain and reduce the sensitivity of the sensor POSSIBLE INJURY The tubing valves and other apparatu...

Страница 54: ...or UKAS U K standards laboratory If these facilities do not exist it is recommended that the instrument be returned to Kahn Instruments Inc or one of its approved agents A calibration certificate bear...

Страница 55: ...e HygroPort I S to a dewpoint generator and establish a gas flow through the instrument 6 Apply a dewpoint of 100 C and allow the instrument s reading to stabilize for a minimum of 96 hours including...

Страница 56: ...n Menu is protected by a PIN which must first be entered The PIN 4876 is entered in a similar manner to that described in Section 2 5 This gives access to the HygroPort I S calibration look up table a...

Страница 57: ...nt 100 1 by using the scroll up and scroll down keys 2 To change a single point only use the scroll right key press 5 times to highlight the corresponding HygroPort I S row entry and use the scroll up...

Страница 58: ...t ports and any external transmitters connected to it 2 If installed remove the instrument from its carrying case 3 Pack the instrument in its original case 1 as shown in Figure 8 1 NOTE Any accessori...

Страница 59: ...HygroPort I S User s Manual Appendix A Technical Specifications Issue 6 December 2019 48 Kahn Instruments...

Страница 60: ...ed T95 in 30 minutes to 76 F 60 C Sample Gas Flow 0 5 to 1 scfh 0 2 to 0 5 NL min Electrical Specifications Battery 4 8 V internally mounted Nickel Metal Hydride NiMH battery Battery Operating Life Mo...

Страница 61: ...lbs 1 5 kg Data Logging Capacity 8Mb Log interval 5 to 60 sec Maximum log file size 60kb Communicatons Wireless BluetoothTM range up to 16ft 5m Version 2 0 Languages English French German Italian Por...

Страница 62: ...HygroPort I S User s Manual Appendix B Hazardous Area Certification Issue 6 December 2019 51 Kahn Instruments...

Страница 63: ...oduct Standards This product conforms to the Standards EN60079 0 2018 IEC60079 11 2011 EN60079 11 2011 IEC60079 0 2017 UL60079 0 19 IEC60079 26 2006 UL60079 11 19 C22 2 No 60079 0 19 UL61010 1 3rd C22...

Страница 64: ...ntenance and Installation The HygroPort I S must only be installed by suitably qualified personnel and in accordance with the instructions provided and the terms of the applicable product certificates...

Страница 65: ...HygroPort I S User s Manual Appendix C Datalog Status Display Issue 6 December 2019 54 Kahn Instruments...

Страница 66: ...roPort I S ST display will always read 0 Status register Bit position 12 11 10 9 8 7 6 5 4 3 2 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 N A Figure C 2 HygroPort I S status register For the exampl...

Страница 67: ...settings used Indicates system in purging phase Table C 1 Status register flags For the example given in Figure C 1 from Table C 1 Hex 28 translates reading from right to left as Bit 4 set External s...

Страница 68: ...HygroPort I S User s Manual Appendix D FCC Declaration Issue 6 December 2019 59 Kahn Instruments...

Страница 69: ...o radio reception which may be determined by turning the product on off the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the rece...

Страница 70: ......

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