Extech Instruments PRC50, Руководство пользователя

Страница: 23 / 24

Page 23 PRC50-EN-V2.1 11/11
10 Specifications
General Specifications for Measurement Mode ; these specifications assume:
•
A 1-year calibration cycle
•
An operating temperature of 64
o
F to 82
o
F (18
°
C
to 28
°
C)
•
Relative humidity of 35% to 70% (non condensing)
Accuracy is expressed as ± (percentage of r percentage of range)
Function
Reference
Range Resolution Accuracy Remark
200mV -20.00mV
～
220.00mV 10 μ V 0.02 rdg + 0.02 range Input Resistance: 100M Ω
5V
-0.5000V ～ 5.5000V
0.1mV 0.02 rdg +0.01 range
DCV
50V -5.000V
～
55.000V 1mV 0.03 rdg +0.01 range
Input Resistance: 1M Ω
DCmA 50mA
-4.000mA
～
55.000mA
1 μ A 0.02 rdg +0.01 range Input Resistance: 5 Ω
500Hz
3Hz
～
500.00Hz
0.01Hz
5KHz
3Hz ～ 5.0000KHz
0.1Hz
FREQUENCY
50KHz
3Hz ～ 50.000KHz
1Hz
±2 digits
Input Impedance
：
100k Ω min.
Sensitivity ： 3Vp-p min.
Duty Cycle: 50%
CONTINUITY ≤ 250 Ω beeper Open circuit voltage: 2.5V
Notes:
z DCV: Normal Mode Rejection Ratio (NMRR) ≥ 60dB (at 50Hz or 60Hz); Common Mode Rejection Ratio (CMRR) ≥ 120dB (at
50Hz or 60Hz)
z Reading rate: 2 readings per second
z
Temperature Coefficient: 0.1 times the applicable accuracy specification per degree from 41
o
F to 64
o
F (5
°
C
to 18
°
C)
and 82
o
F to
104
o
F (28 °
C
to 40 °
C)
.
z Maximum voltage between V
Ω
Hz terminal and COM terminal: 60 Vp-p; Maximum Input current: 55mA.
Protected with a 63mA, 250V fast blow fuse