RH350 Datasheet, PDF (4/6 Pages) Extech Instruments Corporation. – SuperHeat Psychrometer

Backlight Display
Press the [Mⁱⁿ/AVRST] and [MEM] buttons together to turn on the backlight. It will remain on
for ten seconds.
Automatic Power OFF
With the meter off, press and hold down the [ON/OFFSET] + [RECHOLD] buttons for more than
1 second to enter auto power off settings. Press the [MEM] button to select non-sleep (n) or
2, 5, 10, 20, 40 and 60 minutes autosleep. Press [T2▲WB] to confirm the selection.
Manual Datalogging
Manual datalogging allows the user to store and recall up to 99 readings with the press of a
button.
1. Press the [MEM] button to manually store a single reading into memory. The display
will flash 3 times and the memory location number will be displayed below the humidity
reading.
2. To view stored readings, press and hold the [RECHOLD] button for 2 seconds and
“RECALL” will blink next to the memory location number on the display.
3. Press the [MEM] button to manually increment through the stored readings.
4. Press [RECHOLD] + [MEM] for more than 1 second to clear the memory.
5. Press [RECHOLD] for more than 1 second to return to normal operation.
Note: In RECALL mode, pressing the [Mⁱⁿ/AVRST] button for min/max/avg readings will auto
search the stored readings in memory and display the minimum, maximum and
average values of the stored readings.
Note: An infrared printer port is located on the side of the meter. This feature is used on more
advanced models and is not functional on this model.
Warranty
EXTECH INSTRUMENTS CORPORATION (A FLIR COMPANY) warrants this instrument to
be free of defects in parts and workmanship for one year from date of shipment (a six
month limited warranty applies to sensors and cables). If it should become necessary to
return the instrument for service during or beyond the warranty period, contact the
Customer Service Department at [phone] ext. 210 for authorization or visit our
website www.extech.com for contact information. A Return Authorization (RA) number
must be issued before any product is returned to Extech. The sender is responsible for
shipping charges, freight, insurance and proper packaging to prevent damage in transit.
This warranty does not apply to defects resulting from action of the user such as misuse,
improper wiring, operation outside of specification, improper maintenance or repair, or
unauthorized modification. Extech specifically disclaims any implied warranties or
merchantability or fitness for a specific purpose and will not be liable for any direct, indirect,
incidental or consequential damages. Extech's total liability is limited to repair or
replacement of the product. The warranty set forth above is inclusive and no other
warranty, whether written or oral, is expressed or implied.
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RH350/355 V2.1 8/08