GeoPrecision ML5WR10 Wireless Datalogger Family User Manual log hc2

GeoPrecision GmbH Wireless Datalogger Family log hc2

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Manual__log_hc2_v2

LOG-HC2  Wireless  Temperature/Humidity  Data  Logger  forRotronic AG Hydroclip HC2HandlingThe logger consists  of  the  electronics (housing model dependent: Stainless  Steel  or  Plastic,20x160  mm)  and  the  HydroClip2  HC2  sensor  (very  high  precision  sensor,  integrated  orseparate  cable)  from  Rotronic  AG.  The  sensor  head  can  be  replaced,  different  variants  areavailable. Please note: The HC2 sensor is not included, becausedifferent versions exist.Important:  The  sensor  is  protected  against  dust  andcan  withstand  condensed  water,  but  should  not  beexposed to liquid water.If  the  enclosure  must  be  opened  (e.g.  for  batteryreplacement), please check  the  o-ring  (sealing) very carefully!  Use  lubricant  (to  protect  theo-ring) before reassembling.We recommend to lubricate the enclosure additionally after reassembling and before using inthe  field  (e.g.  by  Spray  Vaseline).  Please  ensure,  that  no  force  affects  the  connectorsensor<->logger in the field. About the range: Optimal range (line of sight in open environment) could be up to 300 metersfor  loggers  with  separate  antennas.  If the  sensor  cable  (if  applicable)  is  used  as  antenna,  arange  of  100  meters  is  realistic,  for  plastic  housings  with  internal  antenna,  30  meters  arerealistic.  In  the  2nd  case  the  first  20  cm  of  the  sensor  cable  are  mostly  important  for  thetransmission. On request, special beam antennas with very high gain are available from us.Please note: The devices are available with several different radio frequencies, depending onthe local regulations of the country (e.g.: 433 MHz in Europe, parts of Africa and Asia, 905MHz in USA and Canada, ...). It is in the responsibility of the user, not to use devices that arenot allowed in the country of usage.Technical Shortform  LOG-HC2  Wireless Temperature/Humidity Data Logger 15.07.2013Don't exposethe sensor toliquid water.
Technical DataLogger: Temperature range: -40°C to +85°C.  Radio  transmission  frequency:  a)  EC,parts of Africa and Asia): 433.92 MHz (harmonised frequency for license freeoperation  within  the  EC,  Switzerland,  Norway,  Iceland.  (for  other  countriesplease  check  the  local  regulations.  b)    USA/Canada:  905  MHz.  Effectiveemitted energy < 5mWMemory: 512-2048kB (non volatile) Flash memory. Up to 100.000-400.000 measures: 1measure  typically  uses  5.5  Bytes  per  value  (Software  Version  1.1,  will  bereduced  to  2-3  Bytes  in  a  following  revision).  Each  HK-record  (time  stampand optional HK-data) typically requires another 6 to 9 bytes. Since HK-valuesare recorded only after a selectable number of measures, (factory default is 6). Example:  24  measures,  2  values  per  day  require  24*5.5*2  =    264  Bytes.Additionally  4  HK-records  require  additional  4  *  6..9  =  36  Bytes.  Sum:  ca.300 Bytes per day. Conclusion: 2048kB will be good for (theoretically) ca. 20years without clearing the memory. The memory has a duty cycle of  >100 000clearing cycles.HK-data: Internally  the  battery  voltage  and  internal  temperature  can  be  recorded.  Theinternal temperature is only calibrated on  demand. Calibrated accuracy is +/-1°C  in  the  range  -20°C  to  +40°C.  The  battery  voltage  is  measured  with  aresolution of 1 mV. Sensor: Any  type  of  HygroClip2  (replaceable  and  calibrated)  from  ROTRONIC  AG(www.rotronic.de). The sensor range is 0-100% rH and -50°C to +100°C. Forthe  accuracies  and  extended  temperature  ranges contact  ROTRONIC  (pleasenote: the logger itself is only designed for temperatures from -40°C to +60°C(+85°C  for  short  times)).  Optionally  the  sensor  can  be  connected  in  4-wiretechnology. Sensor cables are possible from 20 cm to 1 meter. Battery: SB-AA11 from www.vitzrocell.com :3.6 Volt Lithium (Li-SoCl2), 2400mAh. Max. Pulse load: <20 mASize: AA with solder terminalLow self discharge rate (less than 1% after 1 year of storage at +20°C)Non flammableNon restricted for transportThe battery can be replaced by the user. Similar types of battery are availablefrom all major battery production companies. About the battery voltage: The voltage is around 3.4-3.6 V at 20°C, but „dropsdown“  to  3.1-3.3°C  at  -40°C.    The  battery  voltage  does  not  significantlyreflect the remaining power of the battery, the „temperature drops“ show thisbetter, as described below.Technical Shortform  LOG-HC2  Wireless Temperature/Humidity Data Logger 15.07.2013
Calculation the battery capacity4 main factors impact the battery capacity/lifetime: Constant load: about 10µA for the current version Mode „Sleeping“ with   periodically checking the radio. So 1 mAh is good for ca. 100 hours of „Sleeping“ Pulse load: about 10mA for 1.7 seconds per measure, so 1 mAh is good for    ca. 210 measures Self discharge: about 10% after 10 years Temperature cycles: difficult to predict, could be up to 50% (worst case) for   harsh environments like high mountain sites.As a rough estimation: Theoretically 2400 mAh are good for  >25  years of  „Sleeping“ or >500000 measures (this is almost 60 years for 1 measure per hour), if no self discharge isassumed. Practically we normally calculate only  with 1/3 of the capacity (the rest is forspare):  For 1 measure per hour each year requires in total 130 mAh (42 mAh for themeasures and 88mAh for „Sleeping“), with  the rest of 2400 mAh / 3 = 800 mAh still morethan 6 years of operation should be possible. Hence we would recommend to replace thebattery with these settings  after 5 years or later, if „temperature drops“ for cold phases risessignificantly.Compliance informations (only for USA/Canada):a) User Information according to FCC 15.21:Changes or modifications not expressly approved by the party responsible for compliance could void the user’sauthority to operate the equipment. b) Part 15 Statement according FCC 15.19/RSS Gen Issue 3 Sect. 7.1.3This device complies with Part 15 of the FCC Rules and with Industry Canada license-exempt RSS standard(s).Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2)this device must accept any interference received, including interference that may cause undesired operation.Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts delicence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire debrouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si lebrouillage est susceptible d'en compromettre le fonctionnement.LOG-HC2:   FCC-ID: 2AAREHC2R10 / IC Certification No IC: 11303A-HC2R10(Label assembled over battery screw cap)Technical Shortform  LOG-HC2  Wireless Temperature/Humidity Data Logger 15.07.2013Model: LOG-HC2 FCC-ID: 2AAREHC2R10IC: 11303A-HC2R101cm2.54cm. Model: LOG-HC2 FCC-ID: 2AAREML5WR10 IC: 11303A-ML5WR10FCC-ID: 2AAREML5WR10 / IC Certification No IC: 11303A-ML5WR10

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