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Summary of Contents for Triplett CFM400
- Page 1 User Manual CFM400 Large Vane CFM/CMM Thermo-Anemometer...
- Page 2 Introduction Congratulations on your purchase of the Triplett Model CFM400 Large Vane Airflow Anemometer. This instrument measures Air Velocity, Air Flow (volume), and Air Temperature. The large, easy-to-read backlit LCD includes primary (upper) and secondary (lower) displays plus numerous status indicators.
- Page 3 Descriptions Meter Description (front) Top line LCD display reading Bottom line LCD display reading U/mode AVG and up arrow button L/mode and down arrow button ON-OFF (Power) and SET button HOLD, MAX-MIN, and left arrow (Enter) button Unit of measure symbol for lower display row Unit of measure symbol for upper display row Air Velocity Vane Meter Description (rear)
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Page 4: Keypad Description
Keypad Description Press momentarily to switch the meter ON or OFF. Press and hold this button for 2 seconds to enter or exit the Setup mode (refer to SETUP mode section for details). Press momentarily to freeze the displayed reading (HOLD icon switches ON);... -
Page 5: Display Description
Display Description Lower Display digits (air volume, air temperature, timer, or menu parameter displays) Upper Display digits (air velocity or menu display parameters) Optional Cone and Funnel attachment icons Units of measure for duct area programming Vane indicator (flashes very briefly on power up) Display HOLD icon MAX mode icon MIN mode icon... -
Page 6: Operation
Operation Air Velocity, Volume, and Temperature Measurements 1. Switch the meter ON by pressing the POWER button momentarily. Press the POWER button again to switch the meter OFF. 2. Note that the meter will automatically enter the sleep mode after 20 minutes of inactivity. To disable this feature: with the meter OFF, press and hold the POWER and the U/mode buttons for 2 seconds. -
Page 7: Lcd Backlight
(the optional cone adaptor kit includes a round and a square cone; kit part number CFM400-C). The meter will automatically recognize the adaptor and the cone icon will appear on the display Note: regardless of the AREA setting in the SETUP mode, the meter will default to the dimensions of the vane opening. -
Page 8: Max/Min Mode
MAX/MIN Mode The MAX-MIN feature records the highest (MAX) and lowest (MIN) readings captured since the meter was switched ON. 1. Press and hold the MAX/MIN button for 2 seconds to begin displaying the lowest (minimum) readings encountered since this mode was accessed. -
Page 9: Setup Mode
4. Press L/mode to view the average reading for the other available parameters. 5. Press U/mode momentarily to return to the normal operating mode. Timed Average Mode 1. From the normal operating mode, press and hold the U/mode button for 2 seconds to enter the Multi-Point Average mode first and then press U/mode one more time momentarily to enter the Timed Average Mode (the AVG and the elapsed timer icons will switch... -
Page 10: Battery Replacement
P1.0: Unit Selection 1. Once in setup mode, at the P1.0 UNIT display, momentarily press the HOLD button to enter the P1.0 UNIT menu. 2. Use the down/up arrow buttons to switch between metric and imperial units. The available units are: air velocity (m/s, fpm), temperature (C, F), air volume (CMM, CFM), and area size (cm², inch²). - Page 11 3. Replace the four (4) 1.5V ‘AAA’ batteries ensuring proper polarity. 4. Close the battery compartment before attempting to use the meter. Never dispose of used batteries or rechargeable batteries in household waste. As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold.
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Page 12: Specifications
Specifications Air Velocity Range Resolution Accuracy m/s (meters per ± (1.5% rdg + 0.3 second) 0.2 - 30 m/s 0.01 m/s m/s) fpm (feet per ± (1.5% rdg + 59 minute) 40 – 5900 fpm 1 fpm fpm) Air Flow (Volume) Range Resolution Area Range... - Page 13 Automatic Power Auto shut off after 20 minutes to preserve battery life (sleep mode) Operating Temperature 0°C to 50°C (32°F to 122°F) Storage -10 to 50 C (14 to 122 Temperature Operating Humidity <80% RH Storage Humidity <90% RH 2000 meters (7000ft) Operating Altitude maximum Battery Power...
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Page 14: Error Messages
Air velocity E03: Velocity exceeds the high range limit. Test the meter using an air velocity that is known to be within the specified range limits. Send the unit to Triplett for repair if the E03 error message persists. Air volume E03: Reading exceeds the meter’s display limit. - Page 15 Replace batteries. Display switches OFF automatically This symptom could be the normal ‘Sleep Mode’ which switches the meter OFF after 20 minutes of in-activity. If this is not the ‘Sleep Mode’, check whether the low battery indicator appears before the LCD attempts to switch ON;...
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Page 16: Warranty
Triplett / Jewell Instruments extends the following warranty to the original purchaser of these goods for use. Triplett warrants to the original purchaser for use that the products sold by it will be free from defects in workmanship and material for a period of (1) one year from the date of purchase.
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