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EA20 V1.5 03/04
2
Specifications
Function Range and Resolution Accuracy
Humidity 10.0 to 95.0% RH ±3% RH (at 25
o
C, 30 to 95% RH )
±5% RH (at 25
o
C, 10 to 30% RH )
Temperature -4 to 140
o
F (-20 to 60
o
C) ±0.9
o
F (±0.5
o
C)
Display Multifunction LCD with bargraph and status indicators
Sensor Type Humidity: Precision capacitance sensor
Temperature: Thermistor
Response Time Humidity: 45% to 95% < 1 min; 95% to 45% < 3 min.
Temperature: Approx. 2 seconds for a 10
o
C change
Sampling Rate 2 times per second
Datalogging Memory 99 sets
Operating Conditions 32 to 140
o
F (0 to 60
o
C); < 95% RH non-condensing
Storage Conditions 14 to 140
o
F (-10 to 60
o
C); <70% RH non-condensing
Power Supply 6 x 1.5V ‘AAA’ batteries with programmable auto power off (1
minute to 59 minutes in 7 selectable times)
Battery Life Approx. 200 hours
Dimensions / Weight 5.9 x 2.8 x 1.4” (150 x 72 x 35mm); 8.3 oz. (235g)
Meter Description
1. Humidity/Temperature Probe
2. Multifunction LCD with bargraph
and status indicators
3. Power ON/OFF button
4. MX/MN button
5. DATA HOLD button
6. Humidity / Temperature select
button
7. TIME button (for MX/MN elapsed
timer)
8. Temperature units (C/F) select
button
9. DEW POINT temperature select
button
10. RELATIVE mode button
11. WET BULB temperature select
button
12. MEM key manual datalogging
control key
13. READ key manual memory data reading
control key
14.
keys to select memory
location
Note: The battery compartment is located
on the rear of the instrument
9
3
6
4
7
8
5
2
1