Specifications; Warranty - Extech Instruments RH390 User Manual

Specifications

Function Range and Resolution
Humidity 0.0 to 100.0%RH
-4.0 to 158.0
Temperature
(-20 to 70
-22.0 to – 3.9
and 158.1 to 199.0
(-30.0 to -19.9
and 70.1 to 100.0
Display
Response Time:
Sensor Type
Wet Bulb
Dew Point
Operating Conditions 32 to 122
Storage Conditions
Power Supply
Battery Life
Dimensions / Weight 7.8 x 1.7 x 1.3" (200 x 45 x 33mm); 7 oz. (200g)

Warranty

EXTECH INSTRUMENTS CORPORATION 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 (781) 890-7440 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.
Accuracy
±2%RH (20% to 90%)
±3%RH (10% to 20% and 90 to 95%)
±4%RH typical at 1% and 99%
o
F
o
±1.8 F (±1
o
C)
o
F
o
F
o
±2.7 F (±1.5
o
C
o
C)
Dual LCD
<30 seconds (90% of final value in moving air)
Humidity: Precision capacitance sensor
Temperature: Thermistor
32 to 176°F (0 to 80°C) (calculated from RH and Air
temperature measurements)
-22 to 199°F (-30 to 100°C) (calculated from RH and Air
temperature measurements)
o o
F (0 to 50 C); < 80% RH non-condensing
o o
-40 to 185 F (-40 to 85 C); <99% RH non-condensing
9 Volt battery
Approx. 24 hours
2
o
C)
o
C)
RH390 V2.0 03/05