Product Specifications
| 1625 Shunt Specifications |
RANGE |
NOMINAL SHUNT VALUE |
DC
ACCURACY
|
AC ACCURACY *
|
MAX. INPUT
(DC +AC rms)
|
100 AΩ |
0.001 Ω |
±0.05% |
±0.1% |
- |
100 A |
20 A |
0.01 Ω |
±0.025% |
±0.1% |
±0.5% (5 kHz) |
20A |
2 A |
0.1 Ω |
±0.01% |
±0.1% |
±0.15% |
2 A |
200 mA |
1 Ω |
±0.01% |
±0.1% |
±0.1% |
200 mA |
20 mA |
10 Ω |
±0.01% |
±0.1% |
±0.1% |
20 mA |
2 mA |
100 Ω |
±0.01% |
±0.1% |
±0.1% |
2 mA |
0.2 mA |
1000 Ω |
±0.01% |
±0.1% |
±0.15% |
200 uA |
* Add ±10 uV for 0.2mA to 2A, and ±30 uV for 20A
to 100 A, to all percentage limits.
Shunts
All shunts are four terminal networks with calibration adjustments for each network.
Table 1-1 gives specifications for each shunt and shunt range.
Accuracy
Stated for 1 year at 23°C ±2°C. Expressed accuracy of volts output to current input
of the reading, add ±10 uV for 0.2 mA to 2 A, and ±30 uV for 20 A to 100A, to all
percentage limits.
Output Voltage
200 mV full scale on all ranges, except 100 mV full scale on the 100 A range.
Output Loading
1 Megohm shunted by less than 100 pF.
Amplifier
Gain: 10.000 to 1
Accuracy: ±50 ppm ±10 uV at dc. Adjustable with
rear panel accessible control.
Offset Voltage: Less than 10 uV. Adjustable to ZERO
with rear panel accessible control.
Frequency Response
±0.01% to 1 kHz
±0.025% to 10 kHz
Input Resistance: 10 Megohms across input binding
posts. Differential, balanced to output common.
Input Overvoltage Protection:
300 V rms (440 V ac
peak) applied continuously.
Output Resistance: Less than 0.01 Ohms when using
sense leads.
Output Voltage (rms): 2 V rms or ±4 V peak.
Maximum Output Current: ±75 mA (dc or ac peak).
Protected against damage with continuous short circuits.
Load Resistance: 20 ohms or greater for full rms
output.
Common Mode Rejection: 90 dB (dc to 60 Hz).
Common Mode Voltage: ±10 Volts max.
Distortion and Noise: >70 dB below full scale rms
output over a bandwidth of dc to 10 kHz.
Amplifier Output
Four wire output through 5 pin female DIN connector. Uses Model 16251A and wire sense
cable accessory with 874 output connector.
Input/Output Terminals
Gold plated universal binding posts on all ranges, except 100A range which uses high
current female terminals.
Environmental Characteristics
Temperature Oper.: 0 to 50°C, Stor. With NI-CAD batteries: -40 to +65°C.
Humidity: (No condensation): 95% R.H. to 40°C, 90% R.H. top 50°C.
Altitude: Oper.: 3 km (10,000 ft), Stor.: 15 km (15,000 ft)
Shock and Vibration: Complies with MIL-T-28800, Class 5
Ventilation: Forced air (fan) cooled
Off Ground Operation: ±50 Volts (dc or ac peak)
Power
A fused power selector safety switch and receptacle on the rear panel selects on of
the four ac operating voltage ranges.
90 to 110V (100V) 48 to 420 Hz
108 to 132V (120V) 48 to 420 Hz
198 to 242V (220V) 48 to 420 Hz
216 to 264V (240V) 48 to 420 Hz
Input Power: 10VA maximum
Internal: rechargeable NI-CAD batteries
Running Time: "off line" for 8 hours
Rechargeable Time: 14 hours with mains OFF.
General
Height: (Case) 133 mm (5.25")
(Overall) 147 mm (5.8")
Width: (Case) 211 mm (8.3")
(Overall) 220 mm (8.66")
Depth: (Case) 280 mm (11")
(Overall) 305 mm (12")
Weight: 4 kg (9.5 lbs.) Net, 6 kg (15 lbs.) Shipping
Product Ordering Information
