Model 6015T

MODEL INFORMATION

• Accuracy 20 ppb (±5 μK)• Resolution: 1 ppb• Differential and absolute measurement• English and Chinese operating systems• No warm up time• AccuBridge™ Technology• Traceable to National Standards• Touch Screen Display with USB• RS232, Analogue, IEEE488 outputs

Measurements International (MI) is pleased to introduce the new AccuBridge™ Technology to its thermometer bridge series of products. The new and improved 6015T represents the newest technology of DCC Thermometry bridges.

The Model 6015T is designed specifically for thermometry applications and provides the best accuracy and convenience based on the most recent developments in current comparator technology. With reversal rates as low as 2 seconds, the 6015T provides fast, continuous measurements with high immunity to thermals and furnace noise. The ratio accuracy can be verified against two stable standard resistors of equal value. The Model 6015T achieves its specifications for a wide range of operating conditions.

Cable noise is removed from the measurement of thermometers with 5µK accuracy by using the MI SPSCW four terminal shielded cables supplied with the instrument. Cable probe extensions can be added without concern for thermal gradients in the measurement. With the use of the MI SPSCW cable you can obtain better than 0.02 ppm (20 ppb) accuracy over the thermometry range of 0.2Ω to 1000Ω and higher.

The model 6015T is a fully automated thermometry bridge. Using this innovative technology, the 6015T’s speed and measurement accuracy has been improved to outperform measurements made with AC Technology. Only two standard resistors are required for verifying the self-calibration feature of the bridge which can be performed at any time, no other external equipment is required.

The Model 6015T is specifically tailored for temperature metrology and includes a wide range of features such as programmable excitation current including √2 and 1/√2 currents. The maximum ratio of 1.5:1 improves the overall noise level while automatic current reversal insures that all dc offsets and thermal emf’s are eliminated.

The Model 6015T comes standard with rear panel connections. Optional front panel terminals are also available. The number of inputs can be expanded for multiple inputs when used with a ten and/or twenty channel, low thermal matrix scanner (Models 4210A, 4210B or 4220A, 4220B).

In addition the 6015T may be ordered with standard lead sets and a lead adaptor box. Standard resistors from 0.1Ω to 400Ω are also available.

Automated PrimaryThermometry Bridge

Touch Screen Display:

The Summary tab screen displays measurement parameters as well as graphical information for current measurement and can be viewed in ratio, Ohms, and in Degrees Celcius, Fahrenheit or Kelvin values.

The Table screen list is chronoligical list of measurements results in ratio, resistance and temperature.

The Measurement Info screen displays measurement parameters for the current measurement such as applied current, number of samples, reversal rate and value of the standard resistor being used.

The graph screen displays a graphical representation of the individual measurement data plots.

Reversal Rates 2, 3, 4 to 1000 secondsExternal Standard AC/DC or DC Standard ResistorSensor current 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50 mA or √2 or 1√2

times any valueSensor current frequency Switched DCBridge balancing modes Automatic to 0.01 ppm (10 ppb)Self Check Modes CAL (Verifies linearity of Bridge to < 0.005 ppm)Lead Connections True Four Wire Connections for thermometer and standard resistor using

SPSCW four wire shielded cable, accuracy is unaffected permitting long lead lengths up to 100 meters and beyond.

Quadrature Balance Not RequiredActive Input Guard Not RequiredAnalogue Output ±5V Unfiltered, Scale ranges every 1°USB Stores all measurement Data (Easily transported to a computer)RS232 OutputIEEE488 Input/Output

Features:

The 6015T is available in both English and Chineese (Mandarin dialect) languages.

© Copyright 2010 Measurements International Limited. All rights reserved.

Form MI 66, Rev. 6, Dated 09-0-03 (QAP19, App. “N”)

Specifications:Thermometers 0.25Ω, 2.5Ω, 25.5Ω, 100ΩStandard Resistor Range 0.1Ω to 1,000ΩMeasurement range 0 to 1.500 000 000 Front panel/ 0 to 1.500 000 000 0 via IEEEAccuracy <±0.02 ppm or 20 ppb (±5uK for a 25.5Ω SPRT at 0°C referenced

to a 25Ω standard) resistor.Ratio Resolution 0.01 ppm (10 ppb) front panel/ 0.001 ppm (1 ppb) IEEE488Measurement Time 30 seconds to full balance/ 2 seconds incremental balance (mini-

mum)Warm up time NoneOperating Conditions 10°C to 35°C, 10% to 90% RH non-condensingPower Requirements 100, 120, 220, 240 VAC ±10% 50/60 Hz

Accessories:4210A/4220A 10 and 20 Channel four terminal matrix scanners4210-01 Four Terminal Adaptor Box for extending the lead lengths of PRT’sSPSCW XX YY Low thermal Teflon Shielded Cable, 4 conductors, cut to lengthStandard Resistors 9331 10, 25, 100, 200, 300, 400MIL-Temp-SW English and ChineseAccu-T-Cal™ Temperature software

Data Subject to Change

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