Velleman DVM8838 - Manual (Page 7)

DVM8838
00 (23/10/2008) 7 Velleman ®
• 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 [D] 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. Dispose of batteries in accordance with local regulations.
Keep the battery away from children.
11. Technical specifications
Temperature Overall range -50°C ~ 1,000°C (-58°F ~ 1,832°F)
Temperature accuracy
T
amb
=23~25°C
(T
amb
=73~77°F)
-50~20°C (-58~68°F)
-20~200°C (-4~392°F)
200~538°C (392~1,000°F)
538~1,000°C (1,000~1,832°F)
±5°C (±9°F)
±1.5% reading ±2°C (3.6°F)
±2.0% reading ±2°C (3.6°F)
±3.5% reading ±5°C (9°F)
Display resolution 0.1°C (0.1°F)
distance-to-spot ratio D:S = 30:1
Response time < 1s
Spectral response 8~14µm
Emissivity Adjustable from 0.10 to 1.00 - step 0.01
Over range indication Display shows ‘-OL’ or ‘+OL’
Operating temperature 0~50°C (32~122°F)
Storage temperature -20~60°C (-4°F~140°F)
Relative humidity 10%~90% operating, < 80% storage
Diode laser Output <1mW, wavelength 630~670nm, Class II laser product
Battery type 1x 9V battery
dimensions 100x56x230mm
weight 290g (10.2oz.)
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.