Specifications – General Tools and Instruments CIH20DL User Manual
Page 22

SPECIFICATIONS
Air Speed Measurement Range
2 ft/min to 7874 ft/min (20 mm/sec to 40 m/sec)
Air Speed Measurement Basic Accuracy
±3% of reading
Air Speed Measurement Resolution
0.1 ft/min; 0.01 m/s; 0.01 km/h; 0.01 mph;
0.01 knots
Airflow Volume Measurement Range
0 to 2.5 million CFM (0 to 72,000 CMM)
Airflow Volume Measurement Basic Accuracy
±3% of reading
Airflow Volume Measurement Resolution
1 CMM; 1 CFM from 0 to 99,999 CFM;
10 CFM from 100,000 to 999,999 CFM;
100 CFM from 1,000,000 to 2,500,000 CFM
Air Temperature Measurement Range
32° to 158°F (0° to 70°C)
Air Temperature Measurement Basic Accuracy
±3% of reading
Air Temperature Measurement Resolution
0.1°F (0.1°C)
IR (Surface) Temperature Measurement Range
-25° to 999°F (-32° to 538°C)
IR Temperature Measurement Accuracy
±5.4°F (3°C) from -25° to -4°F (-32° to 20°C);
±3.6°F (2°C) from -4° to 212°F (-20° to 100°C);
2% of reading from 212° to 999°F (100° to 538°C)
IR Temperature Measurement Resolution
0.1°F (0.1°C)
IR Thermometer Emissivity
0.95 (fixed)
IR Thermometer Distance-to-Spot Ratio
8:1
Airflow Register Area Range
0.01 to 322.92 ft
2
in increments of 0.01 ft
2
,
or 0.001 to 30m
2
in increments of 0.001 m
2
Sampling Time Range
5 seconds to 59 minutes, 59 seconds
Internal Measurement Storage Capacity
9 sets of 3 readings
Internal Data Log Storage Capacity
20,000 points
Auto Power Off
After 10 minutes of inactivity on battery power;
after 30 minutes of inactivity on AC power;
disabled when meter is running on AC power in
Data Logging mode
Backlight Duration
15 seconds
Display Size
1.69 x 2.4 in. (33 x 51mm)
Operating Temperature
32° to 122°F (0° to 50°C) @ 10 to 90% RH
Storage Temperature
14° to 140°F (-10° to 60°C)
Dimensions of Instrument
7.24 x 2.75 x 1.57 in. (184 x 70 x 40mm)
Weight of Instrument
11.3 oz. (320g)
Extended Length of Telescoping Probe and Cable
70.8 in. (1.8m)
Power Source
1 “9V” battery (included)
Dimensions of Protective Carrying Case
10.88 x 10.50 x 2.88 in. (276 x 267 x 73mm)
Weight of Instrument, Accessories and Case
44.5 oz. (1.26kg)
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CIH20DL-FINAL-122111_awb 12/21/11 9:58 AM Page 22