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IN-E-HL-NT-V2_12 

Rotronic AG 
Bassersdorf, Switzerland 

Document code 

Unit 

HygroLog HL-NT data logger: 
instruction manual 

Instruction Manual 

Document Type 

Page 

10

 of 48 

Document title 

 

© 2009-2012; Rotronic AG                                                                                                                        IN-E-HL-NT-V2_12

 

 

2.6  LED Indicators 

The HygroLog HL-NT is equipped with a green and red LED. The logger can be configured with 
HW4 to have the green side of the LED flash when logging is active. The red side of the LED can 
be made to flash when there is an alarm condition (see note below) and / or when the logger 
requires attention (low battery, flash memory card full, etc.) 
 
In the transient alarm mode, the red LED flashes for only as long as the data from a probe 
corresponds to an alarm condition. In the durable alarm mode, the red LED stays on even after 
the alarm condition has disappeared. When the LED is set to provide a durable alarm, it can be 
reset from the keypad or with HW4. 

2.7  Beeper 

The HygroLog HL-NT is equipped with an internal beeper and can be configured with HW4 to 
make a clicking sound when any key is being pressed. The beeper can also be configured to emit 
a 5-second non-repeating sound when there is an alarm condition and / or when the logger 
requires attention. 

2.8  HygroLog HL-NT functions 

2.8.1  Calculated parameter 

Using the HW4 software, the HygroLog HL-NT can be set to compute for each HygroClip probe 
one of the following psychrometric parameters. 
 

o

 

Dew point (Dp) 

o

 

Frost point (Fp) 

o

 

Wet bulb temperature (Tw) 

o

 

Enthalpy (H) 

o

 

Vapor concentration (Dv) 

o

 

Specific humidity (Q) 

o

 

Mixing ratio by weight (R) 

o

 

Vapor concentration at saturation (Dvs) 

o

 

Vapor partial pressure (E) 

o

 

Vapor saturation pressure (Ew) 

 

 

cover 

memory 

card 

Memory Card: 
 
To access the memory 
card, remove the screw 
shown to the right and pull 
out the rubber cover. 
 
The plug-in flash memory 
card is located on top of 
the main board. 

screw 

Summary of Contents for HygroLog HL-NT2

Page 1: ...ssersdorf Switzerland Document code Unit HygroLog HL NT data logger instruction manual Instruction Manual Document Type Page 1 of 48 Document title 2009 2012 Rotronic AG IN E HL NT V2_12 HygroLog HL NT Data Logger Instruction Manual ...

Page 2: ...ontacts 26 4 Pin out diagrams 26 5 HW4 software 28 5 1 Computer Operating System Requirements 28 5 2 Operating System Compatibility 29 5 3 Settings and functions accessible only with HW4 29 6 ERES regulatory compliance 30 7 Getting started 31 8 Stand alone operation 31 8 1 Operating modes 31 8 2 Display and keypad 31 8 3 Display modes 33 8 4 Settings and functions accessible from the Keypad 33 8 5...

Page 3: ... after initial configuration with the HW4 software o Compliance with FDA 21 CFR Part II and GAMP regulations regarding electronic records and electronic signatures ERES o Compatible with Ethernet networks TCP IP protocol LAN or WLAN o Dedicated RS 485 network of up to 64 HygroLog HL NT per communication port o Simultaneous data recording and data display either locally or on a PC Internal power fo...

Page 4: ...nd data for alarm conditions o Alarm reporting o Maintenance of audit trails o Calibration and adjustment of the HygroClip 2 probes o Generation of protocols electronic signatures etc A high level of protection against network failures can be achieved by logging data directly on the PC while also recording the data locally on the HygroLog HL NT with automatic download to the PC at regular interval...

Page 5: ...o Models HL NT2 P HL NT2 DP HL NT3 P and HL NT3 DP are supplied with an internal HC2 S probe pre installed 2 2 Required accessories Models without display keypad The following accessories are required in order to be able to use the logger Any model of docking station except model DS NT1 Connecting cable docking station to PC PC with the ROTRONIC HW4 software installed version 2 3 0 or higher Model...

Page 6: ...n the probe the ring supplied with the HygroLog Insert the ring into the slot in the instrument housing where the slotted cap was Relocate the probe connector up by one or two ribs Close the instrument housing Proceed in a similar manner to install a probe extension cable HygroClip S extended position Extension cable used to separate the probe from the HygroLog Ring replaces the slotted cap To ope...

Page 7: ... position For a faster response use the probe in the extended position o For additional information on the HygroClip 2 probes see document E M HC2 Probes V1 2 3 2 Probe inputs 2 and 3 HygroLog HL NT3 The HygroLog HL NT3 can be used with up to 2 additional HygroClip 2 probes For further information on the HygroClip 2 probes see document E M HC2 Probes V1 2 3 3 Connector identification Input 1 Hygro...

Page 8: ...ARNING Trying to recharge a regular battery is potentially dangerous Whenever a regular battery is being used the logger should be configured with the internal battery charge function disabled 2 4 1 Battery lifetime The battery lifetime depends on the manner in which the HygroLog HL NT is being used The HygroLog HL NT has a battery lifetime of one year when just one HygroClip probe is being used s...

Page 9: ...nfiguration data the logger events and to temporarily hold measurement data The main memory is a plug in flash memory card As a standard the HygroLog HL NT ships with a 16 MB card This card allows the recording of up to 400 000 values in text file format unprotected or up to 750 000 values in binary file format protected Memory cards with a capacity of up to 1 GB can be purchased from third partie...

Page 10: ... set to provide a durable alarm it can be reset from the keypad or with HW4 2 7 Beeper The HygroLog HL NT is equipped with an internal beeper and can be configured with HW4 to make a clicking sound when any key is being pressed The beeper can also be configured to emit a 5 second non repeating sound when there is an alarm condition and or when the logger requires attention 2 8 HygroLog HL NT funct...

Page 11: ...ed with any text editor and or imported into Microsoft Excel The log file format is a global setting of the flash memory card changing this setting requires the HW4 software At any given time the card records data from all inputs in either one format or the other Files of different formats can co exist in the flash memory card Binary files protected use substantially less memory space than text fi...

Page 12: ...urce is being used Logging can be immediately stopped for any individual input directly from the keypad With HW4 logging can be stopped either immediately or at a future date and time for any individual input or for all inputs When logging is ended the HygroLog HL NT returns to the measuring mode 2 8 3 Trend indicators See also Main operating modes and measurement interval When the trend indicator...

Page 13: ...ssed or when there is no communication with a PC If the HygroClip NT was in the function menu at the time the display goes blank it automatically exits the menu The HygroLog suspends the Display Sleep function whenever a key is pressed The function is also suspended when external power is available or when the logger receives a communication request for example from a PC 1 When the display comes u...

Page 14: ...s split between the internal memory of the logger up to 170 events and the flash memory card practically unlimited number of events HW4 offers the possibility of downloading opening and printing the entire file contents All past logger events are available to HW4 as long as the flash memory card is not removed from the logger The serial number of the logger is used as the file name Example 1111111...

Page 15: ...wer up could result in erroneous data or loss of data Beginning accumulator charge Starting to charge the rechargeable battery Accumulator charge ended Rechargeable battery full MFG command Reserved for the factory Lost data memory card not ready While recording data the logger could not find the memory card The data could not be written to the EEPROM and was lost HygroClip probe connected 1 A Hyg...

Page 16: ...t Description Humidity adjusted Humidity adjustment of the probe connected to input Temperature adjusted Temperature adjustment of the probe connected to input Logging started Start recording data from input Logging stopped manually Data recording of input ended before the programmed stop time Prior device time Device date and time prior to change firmware v1 2a and up New device time Device date ...

Page 17: ... LAN or WLAN o Connect up to 64 HygroLog HL NT or other devices together in a multi dropped network RS 485 Depending on the model using a docking station also adds functionality to the HygroLog HL NT o Up to 4 additional probes including analog probes and direct 4 wire RTDs o Logical inputs external contacts o Relay outputs Note docking stations with internal electronics and PC interface should be...

Page 18: ... signals o HL DS R1 receptacle for AC adapter one USB port one RS485 port multi drop networking one connector for up to two logical input signals and two independent relay output connectors 3 1 4 Docking stations with wired Ethernet interface Note with any of the following models use an extension cable to separate all probes from either the HygroLog HL NT or docking station so as to avoid measurem...

Page 19: ...port multi drop two probe inputs HygroClip 2 or analog probe with voltage output signal one connector for up to two logical input signals o HL DS U4 WEB WL same as HL DS U4 WL but with an internal web server that can be accessed with a web browser o HL DS PT4 WL receptacle for AC adapter WLAN transceiver one RS485 port multi drop networking two connectors for RTD probe direct 4 wire connection one...

Page 20: ...ocking station to a wall use the two holes shown on the right The HygroLog NT can then be attached to the docking station as explained below To attach the HygroLog NT to the docking station Place the HygroLog NT on the docking station so as to match the two areas A Press lightly one against the other and secure the assembly with threaded pin B When the docking station is mounted on a wall a small ...

Page 21: ...l Document Type Page 21 of 48 Document title 2009 2012 Rotronic AG IN E HL NT V2_12 3 2 1 Connector identification HL DS U1 HL DS U2 Probe input 4 Probe input 5 Logical inputs Probe input 6 Probe input 7 RS 485 12VDC Power center RS 232 Probe input 4 Probe input 5 Probe input 6 Probe input 7 RS 485 12VDC Power center USB Logical inputs ...

Page 22: ...al Instruction Manual Document Type Page 22 of 48 Document title 2009 2012 Rotronic AG IN E HL NT V2_12 HL DS U4 HL DS U4 420 HL DS U4 WL Probe input 4 Probe input 5 Logical inputs Probe input 6 RJ45 RS 485 12VDC Power center Probe input 7 Probe input 4 Logical inputs Probe input 6 Antenna RS 485 12VDC Power center ...

Page 23: ... manual Instruction Manual Document Type Page 23 of 48 Document title 2009 2012 Rotronic AG IN E HL NT V2_12 HL DS PT2 HL DS PT4 HL DS PT4 WL Input 4 RTD Input 5 RTD Logical inputs Input 6 RTD Input 7 RTD RS 485 12VDC Power center USB Input 4 RTD Logical inputs Input 6 RTD RJ45 or WLAN RS 485 12VDC Power center ...

Page 24: ...ance Min 1 000 MΩ at 500V DC Nominal switching capacity 1 2 A 250 VAC Minimum switching power 1 1 500 VA Maximum switching voltage 1 250 V AC Maximum switching current 1 2 A AC Minimum switching capacity 1 100 mA 5 V DC Expected life min operations Mechanical 5 x 10 6 Electrical N O 5 x 10 4 N C 3 x 10 4 1 Resistive The DS R 1 docking station is provided with two matching 4 pin connectors The pins...

Page 25: ...e and is subject to the same compatibility requirements When analog pressure probe is selected any input of the HygroLog HL NT and docking station can be configured to use the signal from the pressure probe to calculate any humidity parameter that requires barometric pressure as an input value example mixing ratio 3 3 3 1 channel analog probes with current output Docking station HL DS U4 420 is si...

Page 26: ...wing o Out of limit values for probe inputs 1 to 3 of the HygroLog HL NT o Status of the two logical inputs of the DS R 1 docking station o Memory card error o External power failure o Low battery charge 4 Pin out diagrams Note all pin out diagrams are shown from the solder side of the matching connector HygroLog HL NT2 and HL NT3 the probe inputs are always configured for a HygroClip 2 probe Dock...

Page 27: ...direct Pt100 RTD Docking stations with logical inputs Logical Thresholds logical 1 2 8 VDC logical 0 0 7 VDC Docking station HL DS R1 with relay outputs 3 4 1 2 1 Normally closed relay de energized 2 Common 3 Normally open 4 Not used 4 3 2 1 1 3 5 VDC 2 Input 1 3 Input 2 4 GND 1 2 GND not used eventually use for a shield 3 5 V Note an internal pull down resistor sets each input to 0 when the conta...

Page 28: ...truction manuals are available on the HW4 installation CD and can also be downloaded from our web site 5 1 Computer Operating System Requirements The following are the minimum values required to install and run HW4 on a computer It is highly recommended to exceed these values o Processor Pentium II 450 MHz o RAM 128 MB o Available hard disk space 50 MB o Monitor SVGA 1024 x 768 256 colors o Ports ...

Page 29: ...e logger Custom text associated with the logger 30 character description Network address of the logger Language used in the logger menu Date and time format separators Decimal symbol Pressure unit English and mixed unit systems Individual input settings Probe type HygroClip 2 or analog docking station only Probe input description maximum 12 characters Parameter to be calculated for an individual i...

Page 30: ... AirChip 3000 Devices 6 ERES regulatory compliance In order to comply with ERES regulatory requirements Electronic Records and Electronic Signatures the HygroLog HL NT should be used together with the ROTRONIC HW4 software Professional Edition version 2 3 0 or higher HW4 is designed to keep track of logger configuration changes programming changes and of any probe adjustment HW4 also keeps track o...

Page 31: ...odel without display is in a low power consumption mode and just keeps track of the date and time The model with display behaves differently depending on whether or not the Display Sleep function is enabled see Software Functions If the function is disabled display always on measurements take place at intervals of time corresponding to the display refresh interval that was specified with HW4 when ...

Page 32: ...two functions If the function menu is not open press this key to switch the display between showing the measured values date time and probe number and showing the measured values and calculated parameter if HW4 was used to associate a calculated parameter with the probe If the function menu is open press this key to select a menu item and or to confirm a value or setting UP the up arrow key has tw...

Page 33: ...ly relative humidity Measured value 2 usually temperature Calculated parameter as selected with HW4 when configuring the HygroLog HL NT Note in this mode the last line of the display shows the symbols when no calculated parameter was selected with HW4 In both modes a trend indicator appears to the left of each measured value when the trend function is enabled See Software Functions Trend Indicator...

Page 34: ... is either in progress or has been scheduled at a future time the third menu item START LOGGING changes to STOP LOGGING stop recording data immediately 8 5 2 View data This menu item is used to view on the LC display data from the most recent log file for the selected probe older log files cannot be opened with this menu item Probe probe name custom name specified by user To change the probe use t...

Page 35: ...justed humidity humidity RHS or temperature Mode adjustment type single point only RefValue reference value against which the probe will be adjusted ADJUST adjust the probe EXIT exit the adjust function Note next to the word current the bottom of the display shows the value of the parameter to be adjusted at the time the parameter to be adjusted was selected This value is not updated while the Adj...

Page 36: ...rmation on the inputs of the HygroLog HL NT and optional docking station No changes can be made from within this menu item Information is shown one input at a time The input number appears on the top of the screen and can be changed with the up arrow or with the down arrow key Status Connected Not Detected shows if a probe is connected or not Name custom name specified by the user for the input ma...

Page 37: ...ansmitter and similar products that rely on the RO ASCII communications protocol In the case of a docking station with an internal Ethernet TCP IP module the Baud rate of the Ethernet module must be the same as the Baud rate of the HygroLog HL NT used with the docking station Devices and internal Ethernet modules with mismatched Baud rate will not communicate together The Baud rate configuration o...

Page 38: ...king station with HygroLog HL NT can be used either as a slave or a master without special configuration The master is automatically the device that is directly connected to the PC or LAN by means of a RS 232 port USB port or TCP IP port RS 485 Address the RS 485 address is used to identify the individual devices that are connected to a RS 485 multi drop and must be unique to each device This addr...

Page 39: ... Docking stations with Ethernet TCP IP interface please note that the Baud rate of the HygroLog HL NT and the Baud rate of the docking station internal Ethernet module should be set to the same value The RS485 wiring can be done with a twisted pair 2 wire telephone type and wall mounted RJ45 receptacles see Electrical installation guidelines in this manual Be sure to observe the polarity for each ...

Page 40: ...e from other cables as indicated in the table below Bus signals such as RS485 Data signals for PCs printers etc shielded analog inputs unshielded direct current 60V shielded process signals 25 V unshielded alternate current 25V coaxial cables for CRT monitors in common bundles or channels conduits direct current from 60 V to 400 V unshielded alternate current from 25V to 400 V unshielded in separa...

Page 41: ...esired selection or value is displayed press on the ENTER key The entire line corresponding to the menu item is highlighted again Make the appropriate selections from the ADJUST menu Probe name of the probe to be adjusted custom name specified by user To change the probe use the up or down arrow key to highlight probe and press ENTER Use the arrow keys to change the probe and press ENTER to confir...

Page 42: ... is no keypad activity or communication over the UART interface Set both the display refresh rate and the log interval to the highest values compatible with your application Avoid using a docking station with internal electronics without using an AC adapter Do not connect several probes to the HygroLog HL NT without using an AC adapter Do not attempt to charge a regular battery when using a regula...

Page 43: ...ons protocol The communications protocol used by the HygroLog HL NT is the same as for previous versions of the HygroLog NT For customers who for any reason cannot use the HW4 software a description of the HygroLog HL NT communications protocol is available in document Com_NT pdf available directly from ROTRONIC or from our web site 13 Firmware updates Firmware updates require a return to the fact...

Page 44: ...ons Interface Logger UART Docking station RS 232 or USB or Ethernet wired or wireless RS 485 Serial interface RS 232 RS 485 Baud rate 19200 or 57600 Data bits 8 Stop bits 1 Parity none Internal Power supply 9V battery 500 mAh External power supply Via docking station allows use of a rechargeable battery Battery lifetime 1 year w o display 1 probe 15 min log interval Optional Display Graphic LC dis...

Page 45: ...rd 400 000 data points in text file format 752 000 data points in encoded binary format protected Log interval Programmable from 5 sec to 24 hours Log mode Start Stop with programmable date and time Alarm function Optical and acoustical programmable Housing ABS protection grade IP65 Conformance FDA CFR 21 11 GAMP4 Anti theft protection Use docking station Logger dimensions Logger 155 x 106 x 37 mm...

Page 46: ... AG Bassersdorf Switzerland Document code Unit HygroLog HL NT data logger instruction manual Instruction Manual Document Type Page 46 of 48 Document title 2009 2012 Rotronic AG IN E HL NT V2_12 Docking Station Dimensions in mm ...

Page 47: ...sh memory card 32 MB AC NT64MB Compact flash memory card 64 MB 15 08 6212 Flash card reader incl USB cable and driver For accessories and parts such as the HW4 software probe extension cables calibration accessories and spare dust filters please see document E M HC2 accessories 16 Supporting documents Document File Name Contents E M HC2 Probes V1 HygroClip 2 HC2 Humidity Temperature Probes User Gu...

Page 48: ...tart up Guidelines E M TCPIP Conf Configuration procedures for ROTRONIC devices with Ethernet TCP IP interface E M CalBasics Temperature and humidity calibration basics Instructions for using the ROTRONIC humidity standards E T HumiDefs Humidity Definitions Note All document file names have an extension corresponding to the document release number This extension is not shown in the above table 17 ...

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