FLIR Extech Instruments RH520A User Manual Download Page 4

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RH520-EU_ENG V4.2 3/10

DISPLAY DESCRIPTION

1. Temperature

measurement

graph

Internal memory usage meter

Vertical axis scale limits

Cursor / Alarm indicators

Push-button lock-out status indicator

6. Time

display

Relative Humidity (RH) measurement graph

8. Date

display

9. Function

indicators

10. Numerical temperature reading display

11. Numerical RH reading display

12. Battery status indicator

Summary of Contents for Extech Instruments RH520A

Page 1: ...User Manual Paperless Humidity Temperature Chart Recorder Model RH520 C 13 45 04 23 04 30 10 100 0 38 21 2...

Page 2: ...r transfer to a PC Careful use of this instrument will provide years of reliable service CAUTIONS This device is not a toy and must not reach children s hands It contains hazardous objects as well as...

Page 3: ...AC adaptor jack 8 DATA RESET button clears recorded measurement data and alarm history 9 Temperature units select switch C or F 10 PROGRAMMING RESET button clears programming changes but retains meas...

Page 4: ...Internal memory usage meter 3 Vertical axis scale limits 4 Cursor Alarm indicators 5 Push button lock out status indicator 6 Time display 7 Relative Humidity RH measurement graph 8 Date display 9 Func...

Page 5: ...MP button to display Dew Point Right left down and up arrow buttons for scrolling data and navigating the display KEYPAD QUICK REFERENCE ALSO SHOWN ON REAR OF THE RH520 HOUSING Key press Function Seco...

Page 6: ...ly charged Segments switch off as the battery ages When the battery indicator has only one segment left the batteries must be replaced immediately NOTE Always set the date and time immediately after b...

Page 7: ...RATURE GRAPHIC DISPLAY 1 Press the SET TEMP and UP arrow buttons simultaneously 2 The upper temperature range indicator will flash and the SET icon will appear 3 Use the UP DOWN buttons to change the...

Page 8: ...s to increment decrement the HIGH temperature alarm limit Use the LEFT RIGHT arrow buttons to step through the decades 4 Press the ALARM button The MIN low alarm indicator will switch on 5 Use the UP...

Page 9: ...ess of the RIGHT ARROW button will move the cursor to the right When the cursor reaches the right side limit the graph will move to the left Holding the button down will speed the scrolling rate When...

Page 10: ...reading digits the display is showing the MAX or MIN relative humidity ALARM DISPLAYS 1 Press the ALARM button from the Standard View to analyze the most recent alarm activity temperature or humidity...

Page 11: ...for the selected Time will display 4 Press VIEW to return to the Standard View DEW POINT DISPLAY Press the TEMP and the RH buttons simultaneously to view the Dew Point reading The DEW POINT display ic...

Page 12: ...current sample rate is displayed in the TIME and DATE display areas 4 To change the sample rate refer to the programming section of this manual 5 Press the VIEW button to return to the Standard View T...

Page 13: ...low and 100 high Sample Rate One 1 reading stored per minute Battery Replacement The 5 segment battery life indicator allows the user to track the status of the battery When all 5 segments are dark t...

Page 14: ...5 Vdc Minimum Output Voltage 2 5 Vdc Power supply Three 3 AA batteries and AC adaptor included DC4 5V 300mA 3 5mm x 1 35 mm plug Battery life 4 weeks typical using alkaline batteries Operating Temper...