Interface Gold Standard Calibration System INTERFACE Developed in

Interface Gold Standard Calibration System

INTERFACE Developed in 1989, Interface, Inc. began to market the Gold Standard™ System in 1991. It is now used in more than 250 labs throughout the world.

INTERFACE Gold Standard. TM Load Cell Calibration System One 9840 2 Channel Indicator for Load Cell Exitation/ Signal Conditioning One ICS-202 Force Calibration Software One SIS-103 One-Day Training at Interface One CT-139 -10 SCB 1 to GS Load Cell Cable One CT-142 -10 SCB 1 to Standard Load Cell Cable One CX-0440 m. V/V Transfer Standard One SIS-104 System Setup

INTERFACE Interface Gold Standard. TM Calibration Systems Controlled calibration process reduces calibration times by 50% to 90% and produces consistent calibration results Easy-to-use software reduces operator training time Fully integrated reporting functions Automatic archiving of calibration results Supports ASTM E 74, ASTM E 4 and ISO 7500/1, EH 10002 Industry Accepted terms and calculations 0. 1µV display resolution Used in over 250 calibration labs world-wide

INTERFACE Gold Standard. TM Calibration System Options GS-USB: Provides USB interface for HRBSC, SCB 1, DA-101 and HL 4 IO instrument boards includes internal power supply, cooling fan and USB cable. SCB 1: 20 bit instrument board provides signal conditioning for the Gold Standard. TM System. Available in single or dual channel versions. HRBSC: High-resolution 22 bit instrument board increases accuracy over the SCB 1. DA-101: Digital to analog board for generating command signal for system control. Provides setpoint signal for servo controlled hydraulic force testing. HL 4 IO: High level 4 -channel input board allows calibration of ± 5 and ± 10 VDC output transducers and includes all features of the DA-101. Load Cell Simulator: m. V/V transfer standards are used to calibrate the Gold Standard. TM system, and for setting up and testing load cell readout devices. CX-0404 - specifically designed for instrument substitution testing as per ASTM E 74. Desktop, laptop or portable PC: Contact factory for currently available configurations. Gold Standard. TM or Platinum Standard. TM load cells as required.

INTERFACE 1600 Gold Standard. TM Calibration Load Cell Tension and compression in one unit. 005% nonrepeatability. 01% creep High output - to 4 m. V/V High precision base installed 3 run NIST traceable calibration Factory installed calibration adapter Eccentric load compensated. 0008%/°F temp. effect on output 4% lower load limit per ASTM E 74

INTERFACE 1600 Gold Standard. TM Calibration Compression Only Load Cell. 005% nonrepeatability. 01% creep High output - to 4 m. V/V High precision base installed 3 run NIST traceable calibration Eccentric load compensated. 0008%/°F temp. effect on output 4% lower load limit

INTERFACE Model 1800 Platinum™ Series Low Profile Load Cells. 005% non-repeatability. 01% Creep Designed to be used at 2% lower load limit. 008% /°F temp effect on output Eccentric load compensated

INTERFACE Model 9840 Intelligent Indicator • 24 bit internal resolution • +/-999, 999 Count Bipolar Display • Nonlinearity < 0. 005% • Stores calibration for up to 25 load cells • Fast, direct analog output • VDC scalable analog output • Full duplex RS 232 C • Peak/Valley hold • Front panel and remote tare

INTERFACE Precision m. V/V Load Cell Simulator Most accurate load cell simulator. Special low thermal emf construction. Each unit individually calibrated, aged and recalibrated. Strong, rugged design. Instrument substitution testing. MDL CX-0404 is specifically designed for instrument substitution testing as per ASTM E 74.

Why use a simulator or m. V/V Standard ? Calibrate Indicator or Signal Conditioner periodically Daily sanity check on measurements Establish true zero Check cables 11

Model CX Standard 6 digit calibration 10 ppm uncertainty 12

Shunt Calibration Technique of unbalancing bridge with external shunt resistor Less Expensive OK for medium-accuracy work Affected by preload, temperature, bridge resistance drift, cable length 13

Transducer Calibration Procedures 14

Machine Calibration Procedures 15

Measurement Uncertainty Model, Calibrating Load Cell by Comparison 16

Uncertainty Components CNS = Cal of Standard Transducer by NIST DS = Drift in Standard since last cal PS = Creep in Standard Transducer TS = Temperature effect on output of Standard RHF= Nonreproducibility of frame, load string CH = Calibration of HRBSC Instrument DH = Drift in HRBSC since last cal TH = Temperature effect on HRBSC Instrument LH = Nonlinearity of HRBSC Instrument NH = Noise of HRBSC Instrument 17

CH Uncertainty in calibration of HRBSC (rectangular distribution) Source of Uncertainty Type Uncertainty (%RDG) ) CCX = Calibration of CX-0610 B 0. 0008 DCX = Drift in transfer function of CX-0610 between calibrations B 0. 0010 TCX = Temperature effect on CX-0610 B 0. 0054 NCX = Noise of the HRBSC instrument during calibration with the CX-0610 B 0. 0003 ------Combined (Root Sum of Squares) 0. 0056 18

Uncertainty Budget Example 19

Dominant Uncertainty Components Nonreproducibility of load frame, threads, adaptors, alignment Calibration of Standard at low end of range Drift in Standard since last cal 20

INTERFACE Load Cell Calibration System Software - Opening Screen

INTERFACE DUT Description

INTERFACE Setpoint Entry

INTERFACE Setpoint File Selection

Exercise Load Cells INTERFACE

Begin Calibration INTERFACE

Calibration INTERFACE

INTERFACE Completed Calibration

Error Plot INTERFACE

Curve Fit INTERFACE

INTERFACE Load Cell History

INTERFACE

Report Designer INTERFACE

Custom Report INTERFACE

INTERFACE Gold Standard. TM E 4 Machine Calibration System 9840 -100 -1 Intelligent Indicator One ICS-205 E 4 Machine Calibration Software One CT-177 -10 Gold Standardtm Interconnect Cable Assemby Serial Cable, Laptop to 9840 One CX-0440 +4 m. V/V Transfer Standard One SIS-104 System Setup Training at Interface

INTERFACE Features of the Portable E 4 Machine Calibration Software: Capable of providing the user with printed copies of: E 4 -02 Test Machine Verification Report. ISO 7500/1 Test Machine Verification Report.