Met One Instruments 597A Operation Manual Download Page 6

 

597A-9800 Manual Rev A 

 

Page | 1 

1.

 

Introduction 

The Model 597A multi-parameter weather sensor is an “All-in-One” device that measures 
ambient temperature, relative humidity and barometric pressure.  Sensor performance 
complies with guidelines establish by the World Meteorological Organization (WMO) and 
the US Environmental Protection Agency (EPA).  The sensor is supplied with mounting 
hardware and an integrated radiation shield and can be easily attached to lattice tower legs 
and instruments masts up to 2 inches (IPS) in diameter.  The Model 597A is supplied with 
output terminals that digital output signals in several formats. 

2.

 

Cautionary Statements 

 

The sensor’s relative humidity output is referenced to saturated water vapor pressure 
above liquid water.  When the air temperature is below freezing, the sensor’s maximum 
theoretical measurement range is limited. 

 

To minimize exposure to direct sunlight install the sensor facing to the north in the 
northern hemisphere and south in the southern hemisphere.  This orientation will help 
shield the sensor from direct sunlight and reduce temperature measurement errors. 

3.

 

Initial Inspection 

 

Upon receipt of the Model 597A, inspect the packaging and contents for damage.  If the 
packaging has arrived in a damaged condition file a claim with the shipping company 
and contact Met One Instruments, Inc. to arrange for repair or replacement. 

 

The model number and cable length are printed on a label at the connection end of the 
cable. Check this information against the shipping documents to ensure the correct 
product and cable length has been received. 

Summary of Contents for 597A

Page 1: ...A MODEL 597A Temperature Relative Humidity Barometric Pressure Sensor Operation Manual Document No 597A 9800 Rev A Met One Instruments Inc 1600 NW Washington Blvd Grants Pass Oregon 97526 Tel 541 471...

Page 2: ...means without the express written permission of Met One Instruments Inc Technical Support Should you require support please consult your printed documentation to resolve your problem If you are still...

Page 3: ...y corrections included in subsequent editions Faultless and safe operation of the product presupposes proper transportation storage and installation as well as careful operation and maintenance The se...

Page 4: ...Statements 1 3 Initial Inspection 1 4 Product Overview 2 5 Installation 3 5 1 Mounting 3 5 2 Siting 3 5 3 Wiring 3 6 Specifications 4 7 Sensor Verification 5 8 Serial Communications 5 9 Maintenance 7...

Page 5: ......

Page 6: ...nced to saturated water vapor pressure above liquid water When the air temperature is below freezing the sensor s maximum theoretical measurement range is limited To minimize exposure to direct sunlig...

Page 7: ...tive humidity module and a platinum RTD temperature sensing element The response of each element is linear with negligible hysteresis Each sensor element in the 597A is controlled using an on board mi...

Page 8: ...urface should be covered with short grass or a natural earth surface where grass does not grow Locate sensors away from objects at a distance equal to four times the height of the objects and at least...

Page 9: ...RE Range 500 to 1100 mbar 14 8 inHg to 32 5 inHg Accuracy 1 Digital 0 5 mbar Analog 0 5 mbar 1 mV Resolution 0 01 mbar ELECTRICAL Measurement Rate 1 Hz Data Storage None Standard Signal Output RS 232C...

Page 10: ...ed serial data stream The serial output is factory set for 9600 baud no parity 8 data bits with 1 stop bit N 8 1 Please see appendix E for a list of supported serial commands Output Format Detail The...

Page 11: ...Polled Data Mode RS232 or RS485 The sensor can be set for polled data mode instead of continuous serial output by setting the serial trigger string while in terminal mode see Section 12 for command d...

Page 12: ...4 Month Interval Return the sensor to Met One Instruments Inc for factory inspection and calibration 10 Service The 597A is not field repairable and should be returned to the factory for service Detai...

Page 13: ...E COLOR WIRE LABEL DESCRIPTION 1 Red 12VDC 9 to 36 VDC 2 Black Gnd Signal Ground 3 Orange Ana Gnd Analog Ground 4 Brown RH RH Analog Output 5 Green ID ID Voltage 6 White BP BP Analog Output 7 Blue AT...

Page 14: ...WIRE LABEL DESCRIPTION 1 Black PWR GND Power Ground 2 Red Vin 9 to 36 VDC 3 Blue SDI 12 SDI 12 Output 4 Green SIG GND Signal Ground 5 White RS 232 Tx RS 232 Transmit 6 Brown RS 232 Rx RS 232 Receive...

Page 15: ...h or will return a help menu H h Display Help Menu H h This Help Menu DR Display Range Switch Setting for Analog Output ID View Set Instrument ID LC Display Last Calibration information OI Set Output...

Page 16: ...Default 1 LC Read the last calibration information Read the serial number last calibration date and correction factor COMMAND RESULT LC cr Annnnn nnnnn 10 15 12 0 00 where n serial number OI Output I...

Page 17: ...hes of Mercury inHg PU2 cr Millimeters of Mercury mmhg TU Temperature Units Read or Set this serial port s output units for Temperature COMMAND RESULT TU cr Report Units setting TU0 cr Celsius Default...

Page 18: ...ng setting serial output provides help ST XXXXXX cr Set Serial Trigger Default 1 RV Software Version Number Report the current firmware version number COMMAND RESULT RV cr Current firmware version QH...

Page 19: ...dity and Send Data dddd dd barometric pressure Start Concurrent Measurement aC a00003 CR LF Where a address Start Concurrent Measurement with CRC aCC a00003 CR LF Where a address Continuous Measuremen...

Page 20: ...OMMAND SENSOR RESPONSE Report Pressure Units aXPU aXPUf CR LF Where a address and f 0 for Millibars default or 1 for Inches of Mercury Set Pressure Units aXPUf Report Version Number aXRV aXVNxx x CR L...

Reviews: