OPERATING INSTRUCTIONS
MODEL N305 / N306
DIGITAL THERMOMETER
Unit Resolution AccuracyRange
ºC 0.1 ºC
0.2 % ±1 ºC-50 to 199.9 ºC
ºF 0.1 ºF
0.2 % ±1 ºF-50 to 199.9 ºF
ºC 1 ºC
0.3 % ±1 ºC-50 to 1000 ºC
ºF 1 ºF
0.3 % ±1 ºF-50 to 1999 ºF
ºC 1 ºC
0.5 % ±1 ºC1000 to 1300 ºC
GENERAL
1/2
Display: . . . . . 3 digit liquid crystal display (LCD) with maximum range of 1999
Battery: . . . . . . . . . . . . . . . . . . . . Standard 9 V battery (NEDA 1604, IEC 6F22)
Battery life: . . . . . . . . . . . . . . . . . . . . 200 hours typical with carbon zinc battery
Dimensions: . . . . . . . . . . . . . . . . . . . . . . 147 mm (H) x 70 mm (W) x 39 mm(D)
Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6 oz (215 g)
Supplied Probe: 4-foot type “K” thermocouple bead probe (teflon tape
insulated). Maximum insulation temperature 260 ºC (500 ºF).
Probe accuracy: ±2.2 ºC or ±0.75 % of reading (whichever is greater) from 0 ºC
to 800 ºC.
SPECIFICATIONS
Measurement Range: . . . . . . . . . . . . . . . -50 ºC to 1300 ºC, (-58 ºF to 1999 ºF)
Resolution:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 ºC or 0.1 ºF (Model 305)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ºC or 1 ºF (Model 306)
Accuracy :
Accuracy is specified for operating temperatures over the range of 18 ºC to 28 ºC
(64 ºF to 82 ºF), for 1 year, not including thermocouple error.
Temperature Coefficient:
0.1 times the applicable accuracy specification per ºC from 0 ºC to 18 ºC and 28
ºC to 50 ºC (32 ºF to 64 ºF and 82 ºF to 122 ºF).
Reading Rate: 2.5 times per second.
Input Protection:
60 Vdc or 24 Vrms ac maximum input voltage on any combination of input pins.
Reading Rate: 2.5 times per second.
Input Connector:
Accepts standard miniature thermocouple connectors (flat blades spaced 7.9
mm, center to center).
OPERATOR MAINTENANCE
WARNING
TO AVOID POSSIBLE ELECTRICAL SHOCK, DISCONNECT THE
THERMOCOUPLE CONNECTORS FROM THE THERMOMETER BEFORE
REMOVING THE COVER.
Power is supplied by a 9 volt “transistor” battery. (NEDA 1604, IEC 6F22). The
“xxxx ” appears on the LCD display when replacement is needed. To replace the
battery, remove the three screws from the back of the meter and lift off the front
case. Remove the battery from case bottom.
ENVIRONMENTAL
Ambient Operating Range:. . . . . . . . . . . . . . . . . 0 ºC to 50 ºC (32 ºF to 122 ºF)
Storage Temperature:. . . . . . . . . . . . . . . . . . . -20 ºC to 60 ºC (-4 ºF to 140 ºF)
Relative Humidity:. . . . . . . . . . . . . . . 0% to 80% (0 ºC to 35 ºC) (32 ºF to 95 ºF)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 0% to 70% (35 ºC to 50 ºC) (95 ºF to 122 ºF)
SAFETY INFORMATION
It is recommended that you read the safety and operation instructions before
using the thermometer.
TO AVOID ELECTRICAL SHOCK, DO NOT USE THIS INSTRUMENT
WHEN VOLTAGES AT THE MEASUREMENT SURFACE EXCEED
24 VAC or 60 VDC.
TO AVOID DAMAGE OR BURNS, DO NOT MAKE TEMPERATURE
MEASUREMENTS IN MICROWAVE OVENS.
CAUTION
Repeated sharp flexing can break the thermocouple leads. To prolong lead life,
avoid sharp bends in the leads, especially near the connector.
The symbol on the instrument indicates that the operator must refer to an
explanation in this manual.
NOVUS AUTOMATION INC.
2315 NW 107th Ave. Warehouse 1A16 # 133
Doral, FL - 33172 - USA
Phone: 1-786-235 2674
Model N306
(Model N305 is slightly different)
Product sold by Novus Automation
(2 pages)
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