Fluke 312 - Electrical Specifications

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