Extech Instruments EX330 Guía de usuario Pagina 14

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EX330-en-GB_V5.1 1/15
14
General Specifications
Diode Test Test current: 0.3mA max., Open circuit voltage: 1.5V DC typ.
Continuity Check Audible signal will sound if the resistance is less than 35
Temperature Sensor Requires type K thermocouple
Input Impedance 10M (VDC & VAC)
AC Bandwidth 50 / 60Hz
Display 4000 count (0 to 3999 digits) LCD
Overrange indication For all functions “OL” is displayed (Note: For ACV measurements only, an
audible beep will also sound)
Auto Power Off After 15 minutes (approximately) of inactivity
Polarity No indication for positive; Minus (-) sign for negative
Measurement Rate 2 times per second, nominal
Low Battery Indication “ ” is displayed if battery voltage is critically low
Battery Two (2) 1.5V ‘AAA’ batteries
Fuses mA, µA ranges: 500mA/250V fast blow;
’A’ range: 10A/250V fast blow
Operating Temperature 32ºF to 122ºF (0ºC to 50ºC)
Storage Temperature -4
o
F to 140
o
F (-20
o
C to 60
o
C)
Operating Humidity <70% RH
Storage Humidity <80% RH
Operating Altitude 7000ft. (2000meters) maximum.
Weight 9.17 oz (260g) (includes holster).
Size 5.8” x 2.9” x 1.6” (147 x 76 x 42mm) (includes holster)
Approvals UL, CE
Safety This meter is intended for indoor use and protected, against the users, by
double insulation per EN61010-1 and IEC61010-1 2nd Edition (2001) to CAT
II 1000V & CAT III 600V; Pollution Degree 2. The meter also meets UL
61010-1, Second Edition (2004), CAN/CSA C22.2 No. 61010-1, Second
Edition (2004), and UL 61010B-2-031, First Edition (2003)
UL LISTED The UL mark does not indicate that this product has been evaluated for the
accuracy of its readings.
PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY
OVERVOLTAGE CATEGORY I
Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in which
measures are taken to limit the transient overvoltages to an appropriate low level. Note – Examples
include protected electronic circuits.
OVERVOLTAGE CATEGORY II
Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from
the fixed installation.
Note – Examples include household, office, and laboratory appliances.
OVERVOLTAGE CATEGORY III
Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations.
Note – Examples include switches in the fixed installation and some equipment for industrial use
with permanent connection to the fixed installation.
OVERVOLTAGE CATEGORY IV
Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation.
Note – Examples include electricity meters and primary over-current protection equipment
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