Luwa 28896 Operating Instructions Manual Download Page 8

 

Operating Instruction

 

Q5.25.45

 

TLT

 

 

Page

 8 / 18 

Draft created/changed: 31.01.03/TT 

Document created/changed: 03.08.2012 / Rea 

Revision: - 

Revision: - 

Draft released: 18.02.03/DEL 

Document released: 03.08.2012 / Rea

 

Jede unerlaubte Verwendung ist strafbar / Any unpermitted use is subject to prosecution.

 

 

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This equipment has left the factory perfectly safety-related way. 

 

Inappropriate manipulations or modifications are strictly forbidden. Follow all warnings and warning labels on 
the instrument and in the manual.  

 

The HTT-V is exclusively developed for the measurement in fresh air environments within the specifications. 
Use and run this instrument only for this purpose. A different or additional use is considered as not intended. 
The manufacture / supplier is not liable for possible damage caused. The risk is entirely assumed by the user.  

 

The  assembly  and  installation  work  shall  only  be  done  by  certified  personal  (electrician  or  workman  with 
equivalent training). 

 

The HTT-V may be operated only under the specified operating conditions. 

 

Wherever malfunctions or errors can cause large material damage or personal injury, additional precautions 
and  external  safety  measures  must  be  taken,  so  that  in  case  of  an  error  defined  operating  conditions  are 
guaranteed (for example limit switch).  

 

The HTT-V is not suitable for the use in hazardous rooms. 

 

The professional installation should comply with local electrical codes and with this manual. 

 

The HTT-V contains ESD-sensitive components. Please refer to the appropriate safety measures.  

 

Use only original accessories and spare parts from Luwa Air Engineering AG. 

 

Without written permission from Luwa Air Engineering AG it is not allowed to carry out extensions or remodel-
ing at the HTT-V. 

 

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General: 

 
1.  Read carefully the manual before the installation of the HTT-V instrument.  

2.  Verify  the performance data on the  label fixed  on the instrument and check whether  or not  it  is suitable for 

your application.  

3.  Choose the appropriate mounting place according to the application and specification (possibly in cooperation 

with the planners)  

4.  Observe strictly that the device specifications and the MAC values (maximum allowable concentration for the 

chemical load for craftsmen) match. 

5.  Avoid that the instrument and the probe are exposed to a corrosive ambient air.  

 

 

Summary of Contents for 28896

Page 1: ...ged 31 01 03 TT Document created changed 03 08 2012 Rea Revision Revision Draft released 18 02 03 DEL Document released 03 08 2012 Rea Jede unerlaubte Verwendung ist strafbar Any unpermitted use is su...

Page 2: ...ns s 8 8 3 3 S SA AF FE ET TY Y 8 8 4 4 I IN NS ST TA AL LL LA AT TI IO ON N 8 8 5 5 M MO OU UN NT TI IN NG G 9 9 5 5 1 1 O Ou ut ts si id de e m me ea as su ur re em me en nt t 1 10 0 6 6 S ST TA AR...

Page 3: ...e er ra at tu ur re e t tr ra an ns sm mi it tt te er r AN 28896 Humidity temperature transmitter type DigiControl HTT V S room with 24 VAC VDC power supply with LCD display with standard polyformalde...

Page 4: ...use is subject to prosecution 1 1 2 2 A Ac cc ce es ss so or ri ie es s a an nd d s sp pa ar re e p pa ar rt ts s AN 28928 AN 28929 Sal_SC humidity set 58 75 Sal_SC humidity 90 AN 29025 AN 28904 Sal_S...

Page 5: ...o prosecution AN 28902 AN 29121 Stainless steel probe duct HTT V M1 length of cable 3 m To use with high humidity 85 Stainless steel probe duct HTT V M2 length of cable 10 m To use with high humidity...

Page 6: ...ogue outputs Special features Large LCD for a simultaneous display of RH and temperature Easy and intuitive menu navigation 3 keys 2 analogue outputs for measured value RH und temperature U or I freel...

Page 7: ...temperature humidity 0 1 C 1 0 RH Measurement interval 330 500 ms Temperature effect on measurement typical 0 06 RH C Resolution of analog outputs typical 5 mV 5uA Accuracy of analog outputs typical 0...

Page 8: ...alfunctions or errors can cause large material damage or personal injury additional precautions and external safety measures must be taken so that in case of an error defined operating conditions are...

Page 9: ...ls or drilled the appropriate holes in the wall the bottom can be screwed 6 Now you can screw the cables on the connector with the ferrule Please consider for this the electric diagram of the designer...

Page 10: ...rt the system check the correct supply wiring and the configuration of the analogue outputs U I switch Close the cover of the HTT V before the power supply is switched on Check the fuse protection on...

Page 11: ...strafbar Any unpermitted use is subject to prosecution 6 6 1 1 C Co on nn ne ec ct ti io on ns s a e Analogue outputs b Power supply Connector for standard humidi ty probe c f Probe connection room d...

Page 12: ...rical connections This connection must be made by a qualified technician To make the connection the transmitter must not be energized Power suppy connection Before making the connection you must first...

Page 13: ...ptions for the application have to be configured For this the instrument has an intuitive menu guidance which is started by the key Enter Menu keys Operation ENTER ENTER Menu and submenus Press 2 seco...

Page 14: ...he probe after having inspected visually and shaken the SAL SC Make sure that the cylinder is close to the probe Wait at least 30 minutes necessary for the balancing of the moisture inside the cylinde...

Page 15: ...alues for Range L and Range H at the Transmitter HTT V for example 0 RH RLs and 100 RH RHs Set the desired output range 0 2 10V 0 4 20mA Set the control system in the same way 7 7 2 Measurement Enter...

Page 16: ...e temperature and humidity can be overridden This override is active for 10 minutes then the system displays the current actual value of the temperature and humidity 7 7 1 11 1 P Pa as ss sw wo or rd...

Page 17: ...e probe element SPACE CAL points are too close 2 0 RH RANGE Range exceeded Power Operating voltage outside the limits FATAL Fatal error DATA Not enough data for Moving Average Error messages A serious...

Page 18: ...18 Draft created changed 31 01 03 TT Document created changed 03 08 2012 Rea Revision Revision Draft released 18 02 03 DEL Document released 03 08 2012 Rea Jede unerlaubte Verwendung ist strafbar Any...

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