Extech Instruments EX503 User Manual page 14

Enclosure Double molded, waterproof (IP67)
Shock (Drop Test) 2 meters (6.5 feet)
Diode Test Test current of 0.3mA typical, open circuit voltage 1.5V DC typical
Continuity Check Audible signal will sound if the resistance is less than 100Ω
(approx.), test current <0.3mA
Input Impedance 7.8MΩ
AC Response Average responding
ACV Bandwidth 50Hz to 400Hz
Crest Factor ≤3 at full scale up to 500V, decreasing linearly to ≤1.5 at 1000V
Display 4,000 count backlit liquid crystal
Overrange indication "OL" is displayed
Auto Power Off 30 minutes (approximately)
Polarity Automatic (no indication for positive); Minus (-) sign for negative
Measurement Rate 2 times per second, nominal
Low Battery Indication " " is displayed if battery voltage drops below operating voltage
Battery One 9 volt (NEDA 1604) battery
Fuses mA, µA ranges; 0.5A/1000V ceramic fast blow
A range; 10A/1000V ceramic fast blow
Operating Temperature 5°C to 40°C (41°F to 104°F)
Storage Temperature -20°C to 60°C (-4°F to 140°F)
Operating Humidity Max 80% up to 31°C (87°F) decreasing linearly to 50% at 40°C
(104°F)
Storage Humidity <80%
Operating Altitude 2000meters (7000ft) maximum
Weight 342g (0.753lb) (includes holster).
Size 182 x 82 x 55mm (7.2" x 3.2" x 2.2")
Safety This meter is intended for origin of installation use and protected,
against the users, by double insulation per EN61010-1 and
IEC61010-1 2
III 1000V; Pollution Degree 2. The meter also meets UL 61010-1,
nd
2 Edition (2004), CAN/CSA C22.2 No. 61010-1 2
and UL 61010B-2-031, 1
Approvals UL CE
UL Listed The UL mark does not indicate that this product has been
evaluated for the accuracy of its readings.
netzerotools.com
nd
Edition (2001) to Category IV 600V and Category
st
Edition (2003)
14 EX503-EU-ENG-V5.1-6/10
netzerotools.com
nd
Edition (2004),