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Thermometry Bridges

F600 Secondary Standards Bridge

Features

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Accuracy: up to ±0.5mK

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Resolution: 0.1mK

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25Hz / 30Hz or switched DC carriers

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Use with PRTs, & Thermistors (F600 DC only)

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2 to 60 channels

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Large multi-function (VFD) display

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Measure in ratio, ohms,°C, °F or K

 

F600 BrochurePDF Document (PDF, approx 108KB)

 

For more information about this product contact ASL

 

F600 Secondary Standards Bridge
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F600 is a new series of high performance resistance thermometry bridges from ASL that is unique in offering the latest technology in both AC and DC measurement. Integrity in measurement has always been a hallmark of ASL instruments and F600 continues that tradition.

However, now you have an even lower frequency AC bridge, or switched DC measurement technology to choose from, according to your needs.

F600 is the first product from ASL that is available as an AC Bridge and as a DC instrument enabling you to choose the best suited to your application, or to compliment your existing equipment. The AC bridge now operates at the lower frequency of 25Hz (50Hz supply) or 30Hz where your power supply is 60Hz, while the DC version provides a switched DC sensor current to simulate the advantages of
AC - AC bridges eliminate entirely the errors caused by thermal emf’s* in the probe or associated wiring.

F600 is easy of use and is versatile in operation. You can choose and save what information you want to display on-screen as an aid to efficient working. You can also choose to select or change functions, such as probe current, by a dedicated switch or from within the menu displayed on screen.

For multi-channel applications, F600 operates with ASL’s existing switch box systems to allow system expansion to 60 channels.

Specification

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See the table below for infomation about specifications.

 

F600 AC

F600 DC

Accuracy (ppm)

±2ppm of reading or 2 digits, whichever is greater

±3ppm of reading or 3 digits, whichever is greater

Accuracy (temperature)

±2.5mK over range, ±0.5mK at 0°C

±4mK over range, ±0.8mK at 0°C

Resolution

0.1mK

0.1mK

Range (ratio)

0 to 4.999 999 0

0 to 9.9999999

Range (ohms)

0 to 500

0 to 500K

Range (temperature)

-260 to +962°C

-260 to +962°C

Internal Ref. (ohms)

25 & 100

25, 100, 10K & 100K

Carrier Current (mA)

0.1, 0.2, 0.5, 1, 2, 5 &10 +√2 multiplier

0.005, 0.01, 0.02, 0.05, 0.1, 0.2,
0.5, 1, 2, 5 &10 +√2 multiplier

Carrier Frequency

25 or 30 Hz (50 or 60Hz supply)

Switched DC

Bandwidth/update rate

10, 5,1, 0.1 & 0.01Hz

1,2,4,10,20 selectable

Comms Port

USB

USB

Supply Voltage

230, 220, 120, 100 VAC ±10%

230, 220, 120, 100 VAC ±10%

Supply Frequency

47 – 63 Hz

47 – 63 Hz

Service Temperature

0 to +40°C

0 to +40°C

Dimensions (mm)

150 x 455 x 450 (HxWxD)

150 x 455 x 450 (HxWxD)

 

For more information about this product contact ASL

 

* Thermal emf’s are small voltages generated at junctions of dissimilar metals subjected to a thermal gradient that can cause errors by adding to the tiny measured voltage across the resistance thermometer.

 

Hartest Precision Instruments