IET Labs/General Radio 1417 4-Terminal High Capacitance Standard (Four Terminal)

Description

IET Labs / General Radio 1417 Four-Terminal High Capacitance Standard
Comes with a manual and what you see in the pictures. If you don't see it, you probably wont get it.
Specifications are from IET/General Radio and may vary slightly due to upgrades, options, or revisions this unit may or may not have.
The unit is guaranteed to work for 30 days, parts and labor, excluding freight. It is tested and ready to go!
Key Features:
7 Switch-Selected Standard Capacitance Values: 1 µF , 10 µF , 100 µF , 1 mF , 10 mF ,100 mF , 1 F
3 Switch-Selected Test Frequencies: 100 Hz, 120 Hz, 1 kHz
0.25% direct-reading capacitance accuracy
0.1% or better ratio accuracy
Dissipation-factor standard
Applications:
Laboratory Standard
Standard for Dissipation Factor
Verification & Calibration of LCR Meters
Working Standard
Verification of Calibration of LCR Meters
Capacitance Measurement Functions
Calibrating Instrumentation
Description:
The GenRad 1417 Four-Terminal Capacitance Standard consists of a 1 µF standard capacitor and two precise inductive voltage dividers used to scale the value of the 1 µF capacitor up to 1 F in decade steps. This arrangement provides accuracy and stability unattainable with very high-value true capacitors.
Specifications:
Capacitance Value:
Ratio Accuracy:
D Accuracy:
Approximate Terminal Impedance:
E Max* AC (V)
*DC Voltage cannot be applied
(Internal Standard):
100 & 120 Hz
1 kHz
100 & 120 Hz
1 kHz
ZA (Ω)
ZB (Ω)
1 µF
10 µF
100 µF
1 mF
10 F
100 mF
1 F
----
0.02%
0.02%
0.02%
0.03%
0.1%
0.25
----
0.04%
0.04%
0.06%
0.2%
----
----
±0.001
±0.001
±0.001
±0.001
±0.001
±0.003
±0.01
±0.001
±0.001
±0.001
±0.002
±0.005
----
----
0.03
7.0
3.1
1.1
0.37
0.13
0.04
0.03
15.5
6.4
2.2
0.72
0.23
0.05
20
6
2
0.8
0.5
0.25
0.06
Capacitance:
Internal Standard:
1 µF in 7-switch-selected decade values
External Standard:
Indicated capacitance, multiplied by C ext/µF
Capacitance Accuracy, Direct Reading:
0.25% plus ratio accuracy at 100 Hz, 120 Hz and 1 kHz, 20 to 25°C, with low applied voltage (< 1/4 E, max) using internal standard and a proper four-terminal measurement. (May also be used as a two-terminal standard, with a D < 1 and a capacitance change from the four-terminal value of < 1/2% up to 1 mf at 120 Hz or less).
Capacitance Ratio Accuracy:
See Table
Dissipation Factor:
0.01 at 100 Hz, 120 Hz and 1 kHz. For D accuracy see table
Terminal Impedance:
See figure (in datasheet) and the table (approx. values given).
Temperature Coefficient:
Approximately -140 ppm/°C.
Voltage Characteristic:
Approximately +0.3% change from )
V
to E max (see table) at 100 Hz. Less at higher frequencies.
Dimensions:
14.7 cm H x 21.5 cm W x 13.2 cm D (5.9" x 8.5" x 5.25")
Weight:
52.7 kg (6 lbs)
For Domestic Customers: Packaging, handling, and order processing included in shipping in all domestic shipments as quoted by the shipping calculator. For International Customers there is a .00 minimum for packaging, handling, and order processing. International shipping to be determined by destination.
Prior to shipment I will need to know the following information (filled out on a form that I will send you) for International Customers or Packages/Freight being Forwarded internationally. International customers may also be subject to a freight forwarder form if applicable.:
(1) Are you the end-user of this item?
(2) If you are not the ultimate end-user of the item, please state the ultimate end user's name.
(3) What is the ultimate country destination?
04/07/20