Electrical Specifications - Fluke 312 User Manual

Electrical Specifications

The accuracy specification is defined as + (% reading + digits) at
o o 1
23 C + 5 C .
Function
40.00 A
2
AC Amps
400.0 A
(50 ~ 500 Hz)
1000 A
40.00 A
400.0 A
DC Amps
1000 A
2
400.0 V
AC Volts
750 V
(50 ~ 500 Hz)
400.0 V
DC Volts
1000 V
400.0 Ω
Resistance
4000 Ω
(ohms)
On at < 50 Ω
Continuity
Up to 2 V
Diode Test
500 ms acquisition time
Min Max
10 MΩ
Input
Impedance
After 30 min ± 2 min. Disabled in Min Max. Can be disabled as a power up
Auto
option (hold down the peak button)
Shut-off
Available in the following measurement functions: Volts & Ohms (Amps for
Auto range
312 only)
Overload
600 Vrms per EN61010 CAT III 600 V
Protection
1. Temperature Coefficient: 0.1 x (specified accuracy) /
2. True rms for ac voltage and ac amps accuracy is specified from 5 % to 100 % of range. Crest
factor (50 ~ 60 Hz) is 3.0 max in the 40 A and 400 A ranges and 1.4 max in the 1000 A
range (318 only).
3. The measurement time for current above 400 A is limited to 5 minutes followed by a
cooling off time of 15 minutes.
Range Resolution
0.01 A
0.1 A
1 A
0.01 A
0.1 A
1 A
0.1 V
1 V
0.1 V
1 V
0.1 Ω
1 Ω
Users Manual
Accuracy (% reading + digits)
312
1.9 % ± 5 (50 ~ 60 Hz)
1.9 % ± 5
2.5 % ± 5 (60 - 500 Hz)
2.5 % ± 10
-
1.2 % ± 5 1.5 % ± 5
0.75 % ± 2 1 % ± 2
1 % ± 3 1 % ± 3
o o o
C (< 18 C or > 28 C)
316 & 318
5