Extech Instruments RH520 Скачать руководство пользователя страница 11

RH520 V2.9  3/07 

11 

MAX-MIN DISPLAYS 

1. Press 

the 

VIEW

 button in the Standard View to display the highest (MAX) and lowest 

(MIN) temperature and RH readings from all of the stored measurement records. 

2.  When viewing the 

highest readings, 
the MAX indicator 
will switch on. 
When viewing the 
lowest readings, 
the MIN icon will 
switch on. 

3. The 

cursor 

will 

move to the 
location of the 
MIN or MAX 
reading within the graph. If not within the graph currently displayed, the cursor will 
move to the right-most position and the graph will shift accordingly so that the relevant 
data point can be viewed. 

4. Use 

the

 VIEW

 button to step through the highest and lowest temperature readings and 

then the highest and lowest RH readings. When the MAX or MIN indicator is ON under 
the temperature reading digits, the display is showing the MAX or MIN temperature. 
When the MAX or MIN indicator is ON under the RH 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), if any. The ALARM display icon and the relevant 
upper (temperature) or lower (RH) graph pixel will flash. 

2.  The cursor will move to the location within the graph. If not within the graph currently 

displayed, the cursor will move to the right-most position and the graph will shift 
accordingly so that the relevant data point can be viewed. 

3. Press 

the 

ALARM

 button again to view the second most recent set of Alarms (if no 

alarms, the Standard View will appear) 

4. Press 

the 

ALARM

 button again to view the third most recent set of Alarms (if no 

alarms, the Standard View will appear) 

5.  This procedure can continue until no further alarms exist and pressing the 

ALARM

 

button will only bring up the Standard View 

6.  In the example diagram, the RH520 is showing a high temperature alarm (MAX and 

ALARM indicators on). 

 

 

 

 

 

 

 

 

MAX or MIN indicator
is ON when in the
MAX or MIN mode

MAX Temperature
Alarm Mode

Содержание RH520

Страница 1: ...User Manual Humidity Temperature Chart Recorder Model RH520...

Страница 2: ...es to sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for aut...

Страница 3: ...g interval Selectable recording rate 0 1 to 199 9 minutes Graph scaling User selectable in 10 o F 5 o C and 10 increments Low battery indication 5 segment battery indicator Power supply Three 3 AA bat...

Страница 4: ...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 measure...

Страница 5: ...al 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 Function i...

Страница 6: ...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 Second...

Страница 7: ...are dark the battery is fully 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...

Страница 8: ...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 upper temperature value 10 o in...

Страница 9: ...ement 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 DOWN arro...

Страница 10: ...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...

Страница 11: ...H 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 humidit...

Страница 12: ...s 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...

Страница 13: ...be full based on the 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 t...

Страница 14: ...n 0 to 100 TEMP and RH Alarm Limits 0 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 b...

Страница 15: ...t our website www extech com Calibration and Repair Services Extech offers repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the C...

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