General Specifications - Extech Instruments MA443-NIST User Manual

General Specifications

Display
Polarity
Over‐range indication
Conversion rate
Clamp Sensor Type
Test position error
Jaw Opening
Electromagnetic field influence
Maximum Voltage
Low battery indication
Auto Power OFF
Operating Temperature and Humidity
Storage Temperature and Humidity
Operating Altitude
Battery power
Weight
Dimensions (W x H x D)
Safety Standards
Drop Protection
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LCD 4000‐count multi‐function backlit LCD
Automatic display of positive and negative polarity
"OL" or "‐OL" is displayed
3 updates per second
Coil induction (MA440); Hall Effect (MA443 and MA445)
Additional error of ±1.0% of reading applies when the conductor
under test is not positioned at the center of the clamp area
30mm diameter
Unstable or inaccurate readings may be displayed if there is an
electromagnetic field disturbance in the measurement environment
600V AC/DC maximum applied to any terminal
is displayed
After 30 minutes (MA440) or 15 minutes (MA443 and MA445)
Hold M button while turning meter ON to disable APO (MA443 and
MA445 only)
0~30C (32~86F); 80%RH maximum
30~40C (86~104F); 75%RH maximum
40~50C (104~122F); 45%RH maximum
‐20~60C (‐4~140F); 80%RH maximum (with battery removed)
2000m (6562')
3 x 1.5V 'AAA' alkaline batteries
265g (9.3 oz.) Including batteries
77 x 228 x 41mm (3.0 x 9.0 x 1.6")
Indoor use only; Complies with EN61010‐1, EN61010‐2‐032, and
EN61010‐2‐033; CAT III 600V; Pollution Degree 2
1m (approx. 3')
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