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E-M-HG2-S-V1_04

Rotronic AG
Bassersdorf, Switzerland

Document code

Unit

HygroGen2 humidity and temperature
generator: Instruction Manual

Instruction Manual

Document Type

Page

of 46

Document title

E-M-HG2-S-V1_04

Instruction Manual

Summary of Contents for hygrogen2

Page 1: ...Bassersdorf Switzerland Document code Unit HygroGen2 humidity and temperature generator Instruction Manual Instruction Manual Document Type Page 1 of 46 Document title 2009 2010 Rotronic AG 1 E M HG2...

Page 2: ...signs of damage and check the supply contents defined on page 4 Report any damage or missing parts immediately to your supplier 2 Pre checks First check that the water reservoir is empty by inserting...

Page 3: ...y Equipment 3 1 USB keyboard and mouse DVI Monitor Rotronic USB devices 22 3 4 Connecting a Chilled Mirror Instrument Sample Loop Operation 23 Section 4 Installation Safety Transit 4 1 Installation Po...

Page 4: ...ion check can be performed in minutes rather than hours With integrated temperature control calibrations can always be performed at a defined and constant temperature irrespective of the ambient condi...

Page 5: ...5 E M HG2 S V1_04 Part and Screen Identification Diagrams Figure 1 Front of HygroGen 1 Power switch 2 USB ports 3 Touch screen controller 4 Water port 5 Desiccant cell 6 Chamber door 7 Probe aperture...

Page 6: ...Rotronic AG 6 E M HG2 S V1_04 Figure 3 HygroGen Screens The HygroGen controller consists of four primary screens that are accessed using the forward or back buttons in a loop Secondary Screens are ac...

Page 7: ...tomatic Manual selection 12 Back to previous screen 13 Access programmer function 14 Access HW4 software 15 Power off 16 Forward to next screen Figure 5 Trend Screen 1 Graphical trend display 2 Parame...

Page 8: ...10 Temperature set point stability criteria 11 Humidity set point stability criteria 12 Make set point temperature only 13 Forward to next screen Figure 8 Settings Screen 1 Water level display 2 Desic...

Page 9: ...t on by pressing the Power Switch figure 1 once 3 The fans within the unit will switch giving an immediate audible indication the unit is powered 4 The controller will power up and settle to the contr...

Page 10: ...er is cooling or maintaining a temperature below ambient then the heat pump assembly inside the chamber will necessarily be below the chamber temperature If the humidity in the chamber is high the coo...

Page 11: ...conditions the desired rh level is achieved in incremental steps allowing stabilisation at each If the unit is operated at high temperature and high humidity for prolonged periods it is strongly recom...

Page 12: ...be changed below this These values define when the set point has been reached and is stable once the control is within this tolerance timing of the step duration begins If set to zero no stabilisatio...

Page 13: ...the settings screen The water level sensor is for indication only observe the volume specified within Section 2 1 when adding or removing water The fill syringe HG2 FILL supplied with the HygroGen in...

Page 14: ...the dosing syringe tube Wipe up any spilt water with an absorbent cloth immediately 5 Charge the dosing syringe with 80 ml of distilled water Insert the end of the dosing syringe tube firmly into the...

Page 15: ...only when the HygroGen is drying to a low set point this ensures that the desiccant cell measurement sensor is being purged by a flow of gas from the desiccant cell If the HygroGen does not reach low...

Page 16: ...are synthetically produced highly porous crystalline metal alumina silicates They have many internal cavities that are linked by window openings of precise diameters It is these diameters measured in...

Page 17: ...offering an easy method of checking if it is necessary to replace Silica gel does not perform well at low temperatures and rapidly becomes saturated at low relative humidity Silica gel is suitable for...

Page 18: ...ight for weight of moisture sensitive cobalt chloride indicator This is blue when anhydrous and changes to pink as it adsorbs moisture and becomes saturated returning to blue as it is regenerated Euro...

Page 19: ...er to see dirt and fingerprints on a dark screen and a cool screen is less likely to leave streaks 2 Use a lint free cloth rather than a paper towel as paper towels can potentially scratch the screen...

Page 20: ...minants may be present Should these transfer to the HygroGen this may result in drift of the RH control probe so during calibration of the control probe should large deviations occur this may be due t...

Page 21: ...r Quality For best performance HygroGen should only be filled with distilled water As a precaution against any microbial and algae water contamination HygroGen incorporates an Ultra Violet UV sterilis...

Page 22: ...or use the following procedure 1 Isolate the HygroGen and monitor from power sources 2 Connect the HygroGen to the DVI monitor 3 Plug in USB keyboard and mouse 4 Power the monitor 5 Switch on the Hygr...

Page 23: ...condensation formation The connecting tubes to the mirror must also be heated if the set chamber conditions resolve a dew point temperature higher than the air temperature through which the sample tub...

Page 24: ...s of the unit requiring earthing are internally connected An earthed electrical supply is required 4 4 Earth Leakage Current Due to RF filtering there is an earth leakage current within the limits spe...

Page 25: ...to stabilise The water reservoir should be emptied To do this please refer to the How to Empty the Water Reservoir Section 2 3 The process should be repeated until no further water can be extracted fr...

Page 26: ...ide continued power and mains filtration This should be rated according to the HygroGen power specifications see Section 10 and the time required to run shut down during power outage HygroGen shut dow...

Page 27: ...ess Power Off button on screen 2 Select Shut Down 3 Allow the HygroGen to shut down The HygroGen will isolate the humidifier and cool dry to ensure excess water is removed This may take several minute...

Page 28: ...d features of HW4 please refer to the full HW4 manual This can be downloaded from the DOWNLOAD Section of the ROTRONIC website www rotronic com or contact your supplier 5 2 HW4 Installation and Regist...

Page 29: ...be Appendices 1 3 provide examples of uncertainty budgets for the HygroGen when using different calibration references These will enable you to support any claim of traceability or calibration uncerta...

Page 30: ...ty and a drift component must be included in an overall uncertainty calculation Probe characteristics such as hysteresis or temperature coefficients must be included within the overall uncertainty bud...

Page 31: ...checks need to be performed to achieve best performance or a drift component must be included in an overall uncertainty calculation Connecting the reference through the door means that energy may be...

Page 32: ...eated to avoid condensation when passing through ambient conditions lower than the dew point generated within the HygroGen chamber Chilled mirrors may be more expensive to calibrate Unquestionably a c...

Page 33: ...on the magnitude of the change Achieving stable conditions at extreme values may take longer Always pay attention to the stabilisation time required by the probes inserted in the HygroGen These probes...

Page 34: ...r the drying performance of the HygroGen is deteriorating 7 5 Calibrating or Adjusting HygroClip Probes When calibrating or adjusting a HygroClip probe the following should be noted a the digital and...

Page 35: ...an approximate indication of the lowest dewpoint the desiccant can reach as measured by an embedded auxiliary HygroClip dew point probe The value is established only when the dryer is active and a flo...

Page 36: ...be saved on a USB memory stick that does not contain any additional files especially with exe or ini extensions If in any doubt refer to a Rotronic service centre for support Select the Update option...

Page 37: ...unication invalid data output Service centre repair only manual control of desiccant condition enables work to continue Low Water level Check water level empty and refill as required see Section 1 9 I...

Page 38: ...electric element with radial chamber mixing fan Performance Response time 3 minutes 35 to 80 change 5 minutes 20 to 30 C change Control probe specification 0 8 rh 23 C 5 2 rh 0 60 C 0 1K 23 C 5 0 3K 0...

Page 39: ...robe door for HF3 HF4 wall mount transmitters HG2 DP 00000 HG2 clear acrylic door no ports for instruments with displays HG2 D xxxxx HG2 fully custom door for 30mm see xx diameter codes HG2 B1 15mm Bu...

Page 40: ...m 3 25mm T 34mm 4 10mm U 14mm 5 5mm V 20mm cable gland 6 12mm W 32mm cable gland 7 18mm X not used 8 30mm Y 15 mm angled Vaisala HMD 9 Cable gland to accept 9 17mm diameter probes Z not used A 6mm A1...

Page 41: ...grant ROTRONIC the opportunity hereunder of repairing the fault by returning the unit carriage paid to ROTRONIC Should the supply or delivery of any improvement or replacement not prove possible the...

Page 42: ...1144 Fax 41 1 837 0073 www rotronic humidity com humidity rotronic ch USA Service Centre ROTRONIC Instrument Corp Suite 150 135 Engineers Road Hauppauge NY 11788 USA Phone 1 631 427 38 98 Fax 1 631 4...

Page 43: ...fluctuations rectangular 0 050000 rh 1 000000 0 050000 1 73 0 029 0 001 10 Instrument Under Test IUT Resolution rectangular 0 050000 rh 1 000000 0 050000 1 00 0 050 0 003 11 Standard deviation of Ref...

Page 44: ...050000 1 73 0 029 0 001 10 Humidity fluctuations rectangular 0 050000 rh 1 000000 0 050000 1 73 0 029 0 001 11 Instrument Under Test IUT Resolution rectangular 0 050000 rh 1 000000 0 050000 1 00 0 050...

Page 45: ...y fluctuations rectangular 0 050000 rh 1 000000 0 050000 1 73 0 029 0 001 8 Instrument under test IUT resolution rectangular 0 050000 rh 1 000000 0 050000 1 00 0 050 0 003 9 Standard deviation of Ref...

Page 46: ...r 0 1 Cdp 1 0 10 1 73 0 058 0 00333 3 Repeatability normal 0 05 Cdp 1 0 05 1 00 0 050 0 00250 4 Mirror Contamination rectangular 0 05 Cdp 1 0 05 1 73 0 029 0 00083 5 Mirror Temperature Fluctuations re...

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