DVM1322 VELLEMAN 3
5. Maintenance
WARNING : DISCONNECT ALL THERMOCOUPLES BEFORE REMOVING THE COVER IN
ORDER TO AVOID ELECTROSHOCKS.
Battery Replacement
Always use a 9V-battery (6LR61, IEC6F22). The -symbol is displayed when the battery
needs to be replaced.
Remove the three screws at the back of the device, remove the cover and replace the battery.
6. Specifications
Measurement Range -50°C to 1300° or -58°F to 2000°F
Resolution 1°C or 1°F / 0.1°C or 0.1°F, to be selected through the 0.1°/1°-key
Accuracy Max. accuracy is achieved during a one-year period after
calibration. Ideal circumstances require an operating temperature of
18 to 28°C (64 to 82°F). This does not apply for the thermocouples.
Temperature Accuracy
-50°C to 0°C / -58°F to 32°F ± 2°C / ± 4°F
0°C to 1000°C
1000°C to 1300°C
± 0.5% of reading +1°C
± 0.8% of reading + 1°C
32°F to 2000°F ± 0.5% of reading + 2°F
Temperature Coefficient 0.1 times the applicable accuracy from 0 to 18°C and 28 to 50°C
(32 to 64°F and 82 to 122°F)
Input Protection Max. input voltage of 60VDC or 24Vrms AC for any combination of
input pins
Reading Rate 2.5 readings/sec.
Input Connector This device accepts standard miniature thermocouples (flat blades
7.9mm apart, centre to centre)
Ambient Temperature 0 to 50°C or 32 to 122°F
Storage Temperature -20 to +60°C or -4 to +140°F
Relative Humidity 0 to 80% at 0 to 35°C / 32 to 95°F and 0 to 70% at 35 to 50°C / 95
to 122°F
Display 3 ½ digit LCD, max. reading 1999
Battery standard 9V-battery (6LR61, IEC6F22)
Battery Life ± 200hrs for zinc carbon batteries
Dimensions 144mm (L) x 68mm (B) x 39mm (H)
Weight 215g (7.6oz)
Supplied Probes Two "K"-thermocouple probes with a 4-foot lead (insulated with
teflon tape). Max. insulation temperature : 260°C or 500°F.
Accuracy : ± 2.2°C or ± 0.75% (whichever value is greater) between
0 and 800°C
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