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Influence of Adjacent Conductor:
<10mA/A at 50Hz at 23mm from the probe
Influence of Conductor in Jaw Opening: 0.5% reading (DC to 440Hz)
Battery: 9V alkaline (NEDA 1604A, IEC 6LR61)
Low Battery: Green LED turns ON when battery voltage ≥ 6.5V
Battery Life: Approx 100H typical
Overload Indication: Red LED indicates input greater than the selected
range
Auto-Off: 10 minutes (may be disabled at power-up by pressing Zero
button while turning on; green LED blinks three times to indicate that auto-
off is disabled)
3.4.2
MECHANICAL
Operating Temperature Range: 14° to 131°F (-10° to +55°C)
Storage Temperature Range: -40° to 176°F (-40° to +80°C)
Temperature Influence: 40mA/10K typical
≤ 300°ppm/°K or 0.3%/10°K
Operating Relative Humidity:
10° to 35°C: 90% ± 5% RH (without condensation)
40° to 55°C: 70% ± 5% RH (without condensation)
RH Influence: 10-35°C: 90% RH at reference
Temperature: ≤0.5% (MR461); ≤0.1% (MR561)
Altitude: Operating: 0 to 2000m
Non-operating: 0 to 12,000m
Zero Adjustment: ± 10A approx. by increments of 25 to 40mA
Case Protection: IP30 per IEC 529
Drop Test:
1.0m on 38mm of oak on concrete; test according to IEC 1010
Mechanical Shock: 100G, test per IEC 68-2-27
Vibration: Test per IEC 68-2-6
12
AC/DC Current Probe Models MR461 and MR561
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