Key features – General Tools and Instruments CIH20DL User Manual

Page 4

The CIH20DL can be configured to display air speed in any of five Imperial or metric units,

airflow volume in CFM or CMM, and temperature in degrees Fahrenheit or Celsius. The

instrument’s IR thermometer, which can be precisely aimed by a low-power laser pointer,

assumes by default that its target has an emissivity of 0.95, which is true for 90% of

applications.
The meter is normally powered by one “9V” battery (included). To enable long-term data

logging, the meter also can be powered by a 110V or 220V AC supply. When the meter is

battery life. When running on AC power, the auto power off period is extended to 30 minutes

when the meter is not in data logging mode. When the meter is running on AC power in data

logging mode, the auto power off function is disabled to enable logging sessions longer than

30 minutes. When the meter is connected to a computer via the included USB cable, the

meter is powered through the computer's USB port. In this mode, the Auto Power Off

function is disabled. This prevents unexpected meter shutoffs from interrupting data uploads.

KEY FEATURES

• Measures and displays air speed or airflow volume in several Imperial or metric units
• Simultaneously measures and displays ambient temperature from 32° to 158°F

(0° to 70°C) in °F or °C with ±2% accuracy

• Measures air speeds from 2 ft/min to 7874 ft/min (20 mm/sec to 40 m/sec) with

±3% accuracy

• Measures airflow volumes from 0 to 2.5 million CFM (0 to 72,000 CMM) with

±3% accuracy

• Displays maximum, minimum or maximum air speed plus temperature
• Also has 8:1 infrared thermometer for remote, non-contact measurement of surface

temperatures from -25° to 999°F (-32° to 538°C) with ±3% accuracy

• Telescoping probe and cable extend reach of hot wire sensor and thermistor to up to

6 ft. (1.8m)

• Jumbo backlit LCD with three readouts
• Stores/recalls up to nine sets of three readings in nonvolatile memory
• Time-stamps and saves up to 20,000 data points at user-selected sampling rate from

5 seconds to 1 hour

• Included USB cable and interface/data logging software enable transfer of stored data

logs from the meter’s internal memory to a PC for tabular or graphic display and

analysis

• Data hold and auto power off functions
• CE and RoHS approved

CIH20DL-FINAL-122111_awb 12/21/11 9:58 AM Page 4