Sper Scientific 840002 Anemometer Hotwire CFM Datalogger - Manual (Page 5)

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19 PROBE PLUG
20 SENSOR HEAD
21 RETRACTABLE
SENSOR COVER
22 TELESCOPING PROBE
HANDLE
3. MEASURING PROCEDURES
See "Advanced Adjustment Procedures" (pg 7) to set the default temperature
scale (°C or °F), air velocity unit, (m/S, Ft/min, Km/h, Knots or Mile/h), air flow
measurement (CMM or CMF), and area size (Meter^2 or Ft^2).
3-A. Air Velocity and Ambient Temperature Measurement
• Insert the PROBE PLUG (21) into the PROBE INPUT SOCKET (17).
• Slide the PROBE LOCK SWITCH (18) to the ◄LOCK position.
• Turn on the meter by pressing the POWER (2) button. The air velocity
readings are displayed as m/S, Ft/min, Km/h, Knots or Mile/h. The ambi-
ent temperature is displayed in °C or °F.
• Extend the TELESCOPING PROBE HANDLE (22) to desired length.
• Slide the protective RETRACTABLE SENSOR COVER (21) down.
• Aim the white dot on the SENSOR HEAD (20) toward the air flow.
• To display the time (h-m-s) or date (y-m-d) during use, press the CLOCK
(7) button.
• Press the POWER (2) button to turn the unit off.
3-B. Air Flow Measurement - CMM/CMF
• The procedures are the same as above (3-A).
• Press the FUNCTION (6) button to toggle between air velocity and air flow
readings.
• The display shows the reading and the area size in meter^2 or ft^2.
• To display the time (h-m-s) or date (y-m-d) during use, press the CLOCK
(7) button.
• Press the POWER (2) button to turn the unit off.
CAUTION: When the probe is not in use, always protect the SENSOR HEAD (20)
with the RETRACTABLE SENSOR COVER (21). Never touch or insert anything
into the SENSOR HEAD (20). Doing so will void the warranty and may cause per-
manent damage to the probe.
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20
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