Velleman DVM8855 - Manual (Page 11)

DVM8855
02/03/2009 © 2008 Velleman Components nv 11
9. Cleaning and storage
• The IR sensor [1] is the most delicate part of the thermometer and should be kept clean at all
times. To do this, only use a soft cloth or cotton bud. Do not use excessive pressure on the
sensor.
• Wipe the other parts of the thermometer regularly with a dry cloth. Do not use abrasive solutions or
solvents.
• Do not submerge the thermometer in water or any other liquid.
• There are no user-serviceable parts. Contact your dealer for spare parts if necessary.
• The device must be stored in a place with temperature conditions between -20°C and +60°C (-4°F
and +140°F) and relative humidity lower than 80%.
10. Battery
• When the battery indicator [G] indicates low battery, replace the battery with a new one.
• Open the battery cover [10]. The battery cover has a hinge at the bottom of the device. Hold the
battery cover at the top (next to the measurement trigger [8]) and gently pull away from the
device.
• If necessary switch the lock switch [L] to the OFF-position first.
• Connect a new 9V battery to the thermometer with the battery clip and insert the battery in the
battery compartment.
• Push the cover back towards the device until it snaps into place.
WARNING: malfunction may occur if the power is on when the battery is
replaced. Do not attempt to recharge non-rechargeable batteries, do not
puncture or do not throw batteries in fire as they might explode. Dispose of
batteries in accordance with local regulations.
Keep the battery away from children.
11. Technical specifications
measurement range
infrared -50°C ~+1050°C (-58°F ~ +1922°F)
K-type probe -50°C ~+1370°C (-58°F ~ +1999°F)
accuracy K-type probe
(T
amb
= 25°C)
T
obj
= -50°C ~ 1000°C ± 1.5% of rdg ± 3°C (5.4°F)
accuracy IR
(T
amb
= 25°C)
T
obj
= -20°C ~ 200°C
(-4°F ~ 392°F)
± 1.5% of rdg ± 2°C (3.6°F)
T
obj
= 200°C ~ 538°C
(392°F ~ 1000°F)
± 2.0% of rdg ± 2°C (3.6°F)
T
obj
= 538°C ~ 1050°C
(1000°F ~ 1922°F)
± 3.5% of rdg ± 5°C (9°F)
response time < 1 sec
emissivity range 0.1 ~ 1.0 adjustable
wireless USB link
frequency 433MHz
range 10m
wavelength 8µm - 14µm
distance-to-spot ratio D/S = 30:1
power supply 1x 9V E-block battery (6F22C, incl.)
dimensions 100 x 56 x 230mm
weight 290g
Use this device with original accessories only. Velleman nv cannot be held responsible in
the event of damage or injury resulted from (incorrect) use of this device.
For more info concerning this product, please visit our website www.velleman.eu.
The information in this manual is subject to change without prior notice.
© COPYRIGHT NOTICE
The copyright to this manual is owned by Velleman Components nv. All worldwide rights reserved.
No part of this manual or the described software may be copied, reproduced, translated or reduced to any electronic medium
or otherwise without the prior written consent of the copyright holder.