Sper scientific 850025 User Manual Download Page 8

8

Hold Function

Pressing 

Hold

 will freeze the current reading on the 

display. The HOLD symbol will be displayed at the top 

 

of the display window.

To release the Hold function, press 

Hold 

again, the 

HOLD indicator will disappear and the current reading  

will be displayed.

REC (Record) function

The 

REC

 (Record) function will record and display  

the maximum and minimum readings.

 

1.  Start the Record function by pressing 

REC

 once. 

 

The REC symbol will appear on the display.

2.  With the REC symbol on the display:

a.  Press 

REC

 once and the Max symbol will appear on  

the display along with the current maximum value.

b.  Press 

REC

 again, the MIN symbol will appear on  

the display along with the current minimum value.

c.  Clear the recorded MAX or MIN value from the 

 

display by pressing 

Hold

 once. The MAX/MIN 

symbols and their readings, will disappear from the 

display. The meter will return to the REC function 

 

and continue recording.

d.  To exit REC function press 

REC

 button for >2 sec.

Summary of Contents for 850025

Page 1: ...Mini Environmental Quality Meter 850025...

Page 2: ...including photocopying recording or any information storage and retrieval system without the express permission from Sper Scientific INTRODUCTION For environmental testing anywhere 850025 combines an...

Page 3: ...L DESCRIPTION 5 5 OPERATING INSTRUCTIONS 6 Power on off 6 LCD backlight on off 6 Mode selection 6 Unit selection 7 Special attention for the Humidity measurement 7 Hold Function 8 REC Record function...

Page 4: ...e instrument Low friction ball bearing mounted impeller design provides high accuracy at high and low air velocity High precision humidity sensor with fast response time Built in microprocessor circui...

Page 5: ...eter Vane 3 7 Humdity Temp sensor 3 8 Battery Compartment Cover 3 9 Buttons operation label 3 10 Anemometer Temp sensor 3 6 4 1 7 2 3 10 9 8 5 1 Hold button 2 Button Power button 3 REC button 4 LCD di...

Page 6: ...seconds then shut off automatically Mode selection This meter offers 2 selectable modes a Anemometer Air velocity Temperature b Humidity Temperature With the meter on press HOLD continuously and the...

Page 7: ...dCdF with the current temperature scale selection C or F below Press to select the desired scale Press REC to save as the default Note When rH is the selected mode you may only adjust the temperature...

Page 8: ...e Record function by pressing REC once The REC symbol will appear on the display 2 With the REC symbol on the display a Press REC once and the Max symbol will appear on the display along with the curr...

Page 9: ...function press REC and enter the record function page 8 The Auto power off function will be disabled until the record function is exited REPLACE BATTERY 1 When the LCD display shows symbol it is time...

Page 10: ...2 Humidity Temperature Operating Humidity Max 80 RH Operating Temp 0 50 C 32 122 F Over Input Display Power Supply CR 2032 DC 3V battery Power Consumption Approx DC 5 mA Weight 160 g battery included...

Page 11: ...0 1 F 2 5 F ELECTRICAL SPECIFICATIONS Air Velocity Unit Range Res Acc ft min 80 3927 1 3 F S m s 0 4 20 0 0 1 km h 1 4 72 0 0 1 mph 0 9 44 7 0 1 knots 0 8 38 8 0 1 Temp C F 0 50 C 0 1 C 1 2 32 122 F 0...

Page 12: ...y does not cover probes batteries battery leakage or damage resulting from accident tampering misuse or abuse of the product Opening the meter to expose its electronics will void the warranty To obtai...

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