Extech Instruments MA250 User Manual page 11

General Specifications
Clamp jaw opening
Display
Continuity check
Diode test
Low Battery indication
Over-range indication
Measurement rate
Thermocouple sensor
Input Impedance
AC bandwidth
AC response
Operating Temperature
Storage Temperature
Operating Humidity
Storage Humidity
Operating Altitude
Battery
Auto power OFF
Dimensions & Weight
Safety
Approvals
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30mm (1.18") approx.
4,000 count LCD
Threshold <150Ω; Test current < 0.5mA
Test current of 0.3mA typical;
Open circuit voltage [ 1.5VDC typical
Battery symbol is displayed
'OL' display
2 readings per second, nominal
Type K thermocouple required
10MΩ (VDC and VAC)
50 to 400Hz (VAC)
Average responding
5°C to 40°C (41°F to 104°F)
-20°C to 60°C (-4°F to 140°F)
Max 80% up to 31°C (87°F) decreasing linearly to 50% at 40°C
(104°F)
<80%
2000meters (7000ft) maximum.
Two "AAA" 1.5V batteries
After approx. 30 minutes
200x66x37mm (7.9x2.6x1.5"); 205g (7.23oz)
For indoor use and in accordance with the requirements for double
insulation to IEC1010-1 (2001): EN61010-1 (2001) Overvoltage
Category III 600V, Pollution Degree 2.
CE,
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11 MA250-EU-EN-V3.2-6/11
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