Meter Description - Extech Instruments 407123 User Manual

Meter Description

1. LCD display – Indicates air velocity and
temperature readings, units of measure,
low battery icon, and other user alerts
2. Push-buttons:
• POWER: Turn meter ON and OFF
• HOLD: Freezes the displayed reading
• C/F: Select the temperature units
• RECORD: Press to track the highest
(MAX) and lowest (MIN) reading
• RECALL: Displays MAX/MIN readings
• UNIT: Air velocity units of measure
• ZERO: Press to zero the display
(sensor cover must be closed)
3. Protective holster – Rubber jacket that
surrounds the meter (must be removed
to access battery compartment)
4. Battery compartment - Located on the
lower back of the meter
5. PC Interface jack – Accepts a 3.5mm
plug from a PC interface cable (cable
and data acquisition software available
using part number 407001)
6. Sensor input jack – Insert the sensor
plug
7. Sensor opening – Air must flow through
this opening for proper measurement
8. Telescoping sensor handle – Extends to 39" (1m)
9. Sensor protective cover – Slide DOWN to open when in use and slide UP to protect
sensor when not in use (close the cover when zeroing the meter)
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Model 407123 V5.2 2/2006