• Operating temperature of the transmitter: 14°F to 140°F
• Flow channels: 2
• Degree of protection: IP65, acc. to EN 60529
• Explosion protection: ATEX Zone 2, Transducers: ATEX Zone 1 and 2
• Accuracy (standard / field calibrated): 1.6% of reading +/- 0.01 m/s / 0.5% of reading +/- 0.01 m/s
• Weight of Transmitter: 1.9 kg

• Battery: Li-Ion, 7.2 V/4.5 Ah, > 14 hours operating time
• Weight of Transmitter: 1.9 kg
Inputs and Outputs
• Standard Version: Outputs: 2 x current, 2 x binary
• Energy Version: Inputs: 2 x Pt 100/Pt1000; Outputs: 2 x current, 2 x binary

• Brochure (PDF)

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Accuracy: ±1.6 % of reading ±0.01 m/s
±1.2 % of reading ±0.01 m/s
±0.5 % of reading ±0.01 m/s
Weight: 1.9 kg
Dimensions: 226 x 213 x 59 mm;

• Uncertainty 0.000070°C
• Fifty Years of Proven Use
• Quartz Glass and Isotopic Analysis Available

The Water Triple Point is the most important fixed point, the only point common to the ITS-90 and the Thermodynamic Temperature Scale. It is an essential reference point for every temperature laboratory. The Jarrett-Isotech cells are the best standard, all cells are not the same, accept no inferior device.

Total Confidence – The Internationally Proven Cells The Jarrett-Isotech cells have been in production since 1958. A independent comparison* in 1981 showed the first cell to be within 0.000006°C of the reference cell. The most recent international study organized by BIPM** consistently shows labs using both recent and older Jarrett-Isotech cells tightly grouped, tens of μK around the BIPM reference value.

International comparisons prove the quality of the Jarrett-Isotech Cells and are unique in the number, and history of comprehensive evaluations.

*“ Reproducibility of Some Triple Point of Water Cells”By George T. Furukawa and William R. Bigge. Temperature - Its Measurement & Control in Science & Industry Vol. 5 1982.
** Final Report on CCT-K7: Key comparison of water triple point cells.
M Stock et al 2006 Metrologia 43 03001

• Jarret-Isotech Water Triple Point Cells
• Introduction to Primary & Secondary Laboratory Equipment

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Flow velocity: (0.03 to 82)ft/s
Resolution: 0.0008 ft/s
Repeatability: 0.15% of reading ± 0.03ft/s
Weight: approx. 6.2lb
Dimensions: (11.3 x 7.87 x 2.78) in (WxHxD)

• Non-invasive flow measurement for permanent installation
• 1 or 2 flow channels
• Unique signal processing
• Flexible configuration of inputs and outputs
• Enhanced status information
• Integrated energy calculator and flow calculator

Measurement Measuring principle: transit time difference correlation principle - Volume flow: ± 1% to 3% of read. ±0.03ft/s depending on application ± 0.5% of reading ± 0.03ft/s with process calibration - Path velocity: ± 0.5% of reading ± 0.03ft/s Measurable fluids: all acoustically conductive fluids with < 10% gaseous or solid content in volume All FLEXIM transducers can be connected to the transmitter. Clamp-on flow transducers are available for a wide diameter range (0.25in to 256in) and for temperatures ranging from -22°F to 752°F (also in explosive atmosphere). The transducers have a degree of protection NEMA 4X (consult factory for NEMA 4P). You will find more information about the transducers in the corresponding specification sheets. Transmitter Housing - Weight: approx. 6.2lb - Deg. of protection: NEMA 4X - Material: Aluminium, powder coated - Dimensions: (11.3 x 7.87 x 2.78)in (WxHxD) with hinges Flow channels: 1 or 2 Explosion protection in: FM-C Cl 1,2,3 / Div 2 / Gpa-g / T4 pending Power supply: (100 to 240)VAC or (18 to 36)VDC Display: 2 x 16 characters, dot matrix, backlit Operating temperature: 14°F to 140°F Power consumption: < 15W Signal damping: (0 to 100)s, adjustable Measuring cycle: (100 to 1000)Hz (1 channel) Response time: 1s (1 channel), 70ms opt.

• Description (PDF)

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