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PC33 & 52 User’s Manual

8

97238 Issue 2, October 2013

appendix a

Appendix A

Technical Specifications

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Summary of Contents for PC33

Page 1: ...PC33 52 RH Temperature Probes User s Manual M I C H E L L IN S T R U M E N T S E L I T R O N I C L I W 4 97238 Issue 2 October 2013...

Page 2: ...nformation when contacting Michell Instruments for service purposes Instrument Code Serial Number Invoice Date Location of Instrument Tag No Instrument Code Serial Number Invoice Date Location of Inst...

Page 3: ...property of Michell Instruments Ltd and may not be copied or otherwise reproduced communicated in any way to third parties nor stored in any Data Processing System without the express written authori...

Page 4: ...ent 6 Figures Figure 1 PC33 52 1 Figure 2 Cable Connections 2 Figure 3 Adjustment Tube 3 Figure 4 PC33 2 wire Connection 4 Figure 5 PC33 3 4 wire Connection 5 Figure 6 PC52 2 wire Connection 6 Figure...

Page 5: ...for the user to come into contact with any hazardous substance which might be employed in the construction of the instrument Care should however be exercised during maintenance and the disposal of ce...

Page 6: ...m millimeters oz ounce s RH relative humidity T temperature V Volts Ohms inch es percentage Warnings The following general warning listed below is applicable to this instrument It is repeated in the t...

Page 7: ...pplications Figure 1 PC33 52 1 1 Highlights Low cost PC33 with analog output is designed for HVAC applications PC52 with analog output is designed for accurate measurement in controlled environments A...

Page 8: ...tor White Pin 1 Power Supply V Yellow Pin 2 Output temperature Brown Pin 3 Common ground Green Pin 4 Output RH 4 20 mA output 2 wire Cable Connector White Pin 1 Output RH Yellow Pin 2 Output temperatu...

Page 9: ...nd high temperature conditions more frequent calibration is recommended If re adjustment is necessary refer to Sections 3 1 and 3 2 and also see the drawings of the circuit boards for the location of...

Page 10: ...ached and the reading of the reference has stabilized adjust the transmitter with the RH potentiometer see 1 below For versions with a T output the temperature should be calibrated at ambient temperat...

Page 11: ...TOR CABLE RH Temp REL HUMIDITY OUTPUT J5 J6 0 to 1 V DC 0 to 5 V DC 0 to 10 V DC Soldered joint TEMPERATURE RANGE OUTPUT 0 to 50 C 32 to 122 F 0 to 100 C 32 to 212 F 20 to 80 C 4 to 176 F Output J7 J8...

Page 12: ...e transmitter with the Zero RH potentiometer see 1 below Compare with the reference After the second high value is reached and stabilized adjust with the Span RH potentiometer see 2 below For versions...

Page 13: ...CABLE RH Temp REL HUMIDITY OUTPUT J1 J2 J3 0 to 1 V DC 0 to 5 V DC 0 to 10 V DC Soldered joint SETTINGS TEMPERATURE OUTPUT AND RANGE WITH SOLDER JUMPERS 0 to 50 C 32 to 122 F 0 to 100 C 32 to 212 F 2...

Page 14: ...PC33 52 User s Manual 8 97238 Issue 2 October 2013 appendix a Appendix A Technical Specifications...

Page 15: ...Electrical Specifications Output Signal Options 4 20 mA 0 to 1 0 to 5 0 to 10 V Supply Voltage 14 to 30 V DC for 0 to 5 0 to 10 V output 5 to 30 V DC 0 to 1 V mA output Operating Specifications Operat...

Page 16: ...PC33 52 User s Manual 10 97238 Issue 2 October 2013 appendix B Appendix B EC Declaration...

Page 17: ...directives listed below 2004 108 EC EMC Directive Using the standards EN61326 1 2006 Electrical equipment for measurement control and laboratory use EMC requirements Group 1 Class B emissions and imm...

Page 18: ...s listed below 2004 108 EC EMC Directive Using the standards EN61326 1 2006 Electrical equipment for measurement control and laboratory use EMC requirements Group 1 Class B emissions and immunity and...

Page 19: ...PC33 52 User s Manual Michell Instruments 13 appendix C Appendix C Quality Recycling Warranty Information...

Page 20: ...tive and the Restriction of Hazardous Substances RoHS Directive place rules upon European manufacturers of electrical and electronic equipment The directives aim is to reduce the impact that electroni...

Page 21: ...escription of the fault and the customer contact information 3 Upon receipt Michell Instruments will evaluate the product to determine the cause of the malfunction Then one of the following courses of...

Page 22: ...PC33 52 User s Manual 16 97238 Issue 2 October 2013 appendix D Appendix D Recommended Practices in Humidity Measurement...

Page 23: ...instrument for the job Allow hygrometers to equilibrate in any new environment This is particularly necessary after changes in temperature due to transportation or storage Depending on the instrument...

Page 24: ...ature changes can increase the tendency of these materials to affect the humidity of the surrounding air Condensation in a sampling process can invalidate humidity measurements by reducing the water c...

Page 25: ...ments Ambient humidity Avoid using hygrometers near the body which is a source of heat and moisture Do not breathe close to the measurement High humidity above the ambient range sample lines should be...

Page 26: ...types of hygrometer Relative humidity capacitive sensor Care should be taken to avoid mechanical shock impact or thermal shock sudden temperature changes Sensors should be protected from steam or wate...

Page 27: ...PC33 52 User s Manual Michell Instruments 21 NOTES...

Page 28: ...http www michell com...

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