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Eurotherm Chessell 392

Eurotherm Chessell 392
Eurotherm Chessell 392
Eurotherm Chessell 392 | Vortex Technologies
Eurotherm Chessell 392 | Vortex Technologies
Eurotherm Chessell 392 | Vortex Technologies
Description

Input types Thermocouples: Types B, C, E, J, K, L, N, R, S, T, Ni-NiMo

Resistance thermometers: 100Pt, 10Cu, 100Ni, 120Ni.

Voltage: 4mV to 5V dc

Current: 250Ω shunt

Contact closure option: One or two sets of eight. Contact closure or logic low = active

Zero offset -20% to +100% of the gain step selected by the recorder - see table A1 for range steps.

Linearisation types Thermocouple, RTD, Square root, 3/2 power, 5/2 power, log10, Custom curve

Linearisation error ± 0.3˚C

Scan rate Each channel scanned every 500 msec.

CJC rejection ratio 25:1

CJC accuracy ± 0.5 ˚C at 25 ˚C reference

Input ranges Selected automatically by the recorder

using the configured high input value as the

Input impedance >20 MΩ

Rejection Common mode: 120 dB at 50/60 Hz

Series mode: 60 dB at 50/60 Hz

Isolation Isolated input boards: Each input to 250 Vac

Non-isolated input boards: Two channels with common negative connection: to 250V ac from ground