Thermocouple isoPodTM - eDAQ - #1

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WARRANTY: eDAQ hardware units are supported by a three year warranty www.eDAQ.com E-mail: info@edaq.com e-corder® is a registered trademark and isoPod™ a trademark of eDAQ Pty Ltd. All other trademarks are the property of their respective owners. PT5/09 Thermocouple isoPod™ (Model EP356) Description This compact signal conditioner is for use with an e-corder unit, enabling continuous monitoring and recording of temperature from thermocouple probes. Compatibility The Thermocouple isoPod can be used with most thermocouple types (B, E, J, K, N, R, S, and T). Suitable probes include: • ET405 K-type Thermocouple Probe • ET1400 T-type Thermocouple Probe (±0.1 °C accuracy between 0 – 50 °C) Use with Chart software version 5.5.6, or later, on Windows XP or later computers. • Plug and play installation • Use with most thermocouple types • High accuracy • NIST ITS-90 polynomial calibration • Electrical isolation minimises noise and crosstalk Applications The isoPod can be used as a general purpose laboratory thermometer for both research and teaching, including melting and boiling point determinations, measurements of heats of reaction, and calorimetric kinetic experiments. Calibration The raw signal from the probe is ice point corrected, and then linearized by applying an idealized polynomial correction as described by the NIST ITS90 thermocouple database, at: • http://srdata.nist.gov/its90/main/ This results in a calibration at least as good as the stated accuracy of the thermocouple probe itself. Alternatively, the signal can be calibrated using accurately known temperature sources and the Chart software Units conversion, or Multipoint Calibration, features. Specifications Thermocouple types: B, E, J, K, N, R, S, T, and raw millivolt Input connector: Miniature thermocouple socket (copper) Input impedance: > 20 MÙ (differential) > 10 GÙ (common mode) Range settings: 50, 100, 200, 500 °C (J, K, T type) 50, 100, 200 °C (E type) 1000, 2000 °C (B type) 200, 500, 1000, 2000 °C, (R, S type) ±1, 2, 5, 10, 20 mV (raw millivolt) Output signal: ±2 V maximum Cold junction compensation: ±0.1°C over 0 – 40°C ambient DC drift: 140 dB Low pass filter settings: 1, 2, 5, 10, 20, 50, 100 Hz Response time (@ 100 Hz): ~13 ms for 0 – 90% of final value. Probe size will limit response time. Amplifier noise: 250 V rms Dimensions (l x w x h): 108 x 58 x 35 mm Weight: ~200 g eDAQ Pty Ltd reserves the right to alter these specifications at any time. Document Number: M-EP356-0709 Copyright © eDAQ 2009