Digital Multimeters
Detailed Specifications
49
Temperature (28 II Only)
Range Resolution
Accuracy
[1,2]
-200 °C to +1090 °C
-328 °F to +1994 °F
0.1 °C
0.1 °F
±(1.0 % + 10)
±(1.0 % + 18)
[1] Does not include error of the thermocouple probe.
[2] Accuracy specification assumes ambient temperature stable to ± 1 °C. For ambient temperature changes of ± 5 °C, rated accuracy
applies after 2 hour.
AC Current
Accuracy
Function Range Resolution Burden Voltage
27 II
[1,2]
(40 Hz – 1 kHz)
28 II
[3]
(45 Hz – 2 kHz)
600.0 μA 0.1 μA 100 μV/μA
μA ac
6000 μA 1 μA 100 μV/μA
60.00 mA 0.01 mA 1.8 mV/mA
mA ac
400.0 mA
[4]
0.1 mA 1.8 mV/mA
6.000 A 0.001 A 0.03 V/A
A ac
10.00 A
[5,6]
0.01 A 0.03 V/A
±(1.5 % + 2) ±(1.0 % + 2)
[1] AC conversion for the 27 II is ac coupled and calibrated to the rms value of a sine wave input.
[2] Below 300 counts, add 1 count and the temperature coefficient is 0.15 x (specified accuracy) / °C (>40 °C).
[3] AC conversions for the 28 II are ac coupled, true rms responding, and valid from 3 % to 100 % of range, except 400 mA range.
(5 % to 100 % of range) and 10 A range (15 % to 100 % or range).
[4] 400 mA continuous. 600 mA for 18 hr maximum.
[5] W 10 A continuous up to 35 °C. <20 minutes on, 5 minutes off at 35 °C to 55 °C. >10 A to 20 A for 30 seconds maximum,
5 minutes off.
[6] >10 A accuracy unspecified.