Atec Valhalla-Scientific-4650A - Manual

Valhalla Scientific, Inc.
4650A Specifications
V
ALHALLA
S
CIENTIFIC
, I
NC
.
4650A P
ROGRAMMABLE
D
IGITAL
I
GNITER
T
ESTER
S
PECIFICATIONS
_______________________________________________________________
Accuracy
MODEL 4650A ACCURACY SPECIFICATIONS
Rng # Maximum
Input
Maximum 1
Resolution
Accuracy 2 Accuracy 3 Test 4
Current
1 2.49999Ω 10µΩ ±0.015% of rng ±0.1% of range 5mA
2 24.9999Ω 100µΩ ±0.015% of rng ±0.1% of range 500µA
3 249.999Ω 1mΩ ±0.015% of rng ±0.1% of range 50µA
4 2.49999kΩ 10mΩ ±0.015% of rng ±0.1% of range 5µA
5 24.9999kΩ 100mΩ ±0.015% of rng ±0.1% of range 500nA
6 249.999kΩ 1Ω ±0.015% of rng ±0.1% of range 500nA
7 2.49999MΩ 10Ω ±0.5% of rng ±0.2% of range 50nA
8 24.99MΩ 10kΩ ±2% of rng ±0.2% of range 5nA
Notes:
[1] Resolution is user-selectable. The maximum available resolution for each range is shown.
[2] Valid for inputs above 10% of the maximum input.
[3] Valid for inputs from 1% to 10% of the maximum input. Inputs less than 1% are not specified.
[4] Fail-safe current is 7.5mA on all ranges if range 1 is installed, otherwise 750µA all ranges.
Operating Specifications
Compliance Voltage................................... Clamped at 50mV±5%(rngs 1-5) or 200mV±5%(rngs 6-8)
True Ohms Mode ...........................................................Pulsed test current available in ranges 1-4 only
CMRR......................................................................................................................... > 70dB @ 50-60Hz
NMRR......................................................................................................................... > 35dB @ 50-60Hz
Overload Protection................................................................................................. 100V
peak
all terminals