GENERAL

4 resistance standards 100 MΩ to 100 GΩ
1 nF and 100 nF capacitors for charge calibration
Accuracy: 1%
Accredited calibration certificate

Excellent replacement for Keithley 5156
For use with the Keithley 6517 and other electrometers
Custom resistance values are available upon request

DESCRIPTION

High-performance, electrometer calibration standard for use with the Keithley 6517 and other electrometers.

The SCR-5156-IET contains 4 resistors and 2 capacitors, with appropriate uncertainties, as recommended in the Keithley 6517 Service Manual for current and coulombs verification.

Below is the equipment required for verification from the Keithley 6517B Manual.

Equipment needed for verification

- Fluke 5700A calibrator with user documentation
- Keithley Model 2002 Digital Multimeter
- Thermocouple calibrator

Precision resistors with a value known to the listed uncertainty:

- - 100 GΩ, 850 ppm
  - 10 GΩ, 550 ppm
  - 1 GΩ, 550 ppm
  - 100 MΩ, 250 ppm
Uncalibrated precision resistors:

- 10 MΩ
- 1 MΩ
- 10 KΩ
- 1 KΩ
- 10 Ω
- 1 Ω

Precision capacitors with a value known to the listed uncertainty:

1 nF, 1000 ppm
100 nF, 1000 ppm
Triaxial shielding cap

The Keithley Certificate of Calibration also uses a 1 TΩ and 10 TΩ precision resistors which are available from IET in the SRC product line of high resistance standards.

The metal housing provides shielding from noise and a shorting link is provided to connect guard and ground when required.

The output of the SCR-5156-IET is a triaxial connector for direct connection to the Keithley 6517.

There are 6 bnc connectors for each of the internal standards.

The calibrated value of each standard is located on the front panel.

Custom resistance values are available upon request

SPECIFICATION

BASIC SPECIFICATIONS

(See datasheet for full specifications)

Calibrated Values: 23°C; traceable to SI with measurement uncertainties, capacitance is calibrated at 1 kHz, 15 Vac

Maximum Input Voltage: 500 Vpk

Nominal Value	Initial adjustment to nominal	Stability 1 year (ppm)	Tempco (ppm/°C)	Voltage Coefficient (ppm/V)	Material Type
100 MΩ	1%	100	35	1	Thick-film
1 GΩ		100	35	1
10 GΩ		500	50	2
100 GΩ				5
1 nF				5	Polystyrene
100 nF				5	MPP

Terminals:6 bnc connectors for standard values One triaxial output which is common for all 6 standards One five-way binding post for guard with shorting link for connection to ground, and one ground post electrically connected to case

Temperature: Operating 23°C ± 3°C

Humidity: 30 to 60 % RH non-condensing

Dimensions: 20 cm W x 11 cm H x 5.7 cm D (7.55″ W x 4.38″ H x 2.24″ D)

Weight: 2.4 kg (3.5 lbs), nominal

DATASHEET AND MANUAL

Data Sheet: This document explains the features, options, Specifications and option models for this item.
Product Manual: Specifications and option models for this item. This document contains the technical product manual and guidelines.

ACCESSORIES

ISO-17025 ACCREDITED CALIBRATION WITH TEST DATA

Brand	IET Labs, Inc
Sub Categories	Lab tools
Application	Standard Resistor

SCR-5156-IET ELECTROMETER CALIBRATION STANDARD