ES420 – Thermo module
Your benefits
- 8 electrically isolated thermo channels
- Supports thermocouples of type B, E, J, K, N, R, S, and T
- Automatic detection of thermocouple type and open wires
- Channel wise configurable sampling rate between 0.1 Hz and 50 Hz
- Precise cold-junction compensation
- Operating temperatures from -40 °C to 120 °C (-40 °F to 248 °F)
Technical data
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Size and Weight
Dimensions (HxWxD)
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51.5 x 40 x 142 mm / 2.0 x 1.6 x 5.6 in
37.5 x 40 x 129 mm / 1.5 x 1.6 x 5.1 in (tapered rear) |
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Size and Weight
Weight
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350 g / 0.77 lb
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Environment
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Temperature range
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-40 °C to +120 °C (-40 °F to +248 °F) (operation)
-40 °C to +125 °C (-40 °F to +257 °F) (storage) |
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Protection class
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IP67 (with cables connected)
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Altitude
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Up to 5,000 m / 16,400 ft
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Tested for
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Mechanical shock, vibration, fall, temperature shock, temperature alteration, storage in humidity, salt fog attack, impact from flying rocks, according to DIN EN 60068 res. ISO 16750
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Power supply
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Operating voltage
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5 V to 50 V DC (-40 °C to +85 °C / -40 °F to +185 °F),
6 V to 50 V DC (+85 °C to +125 °C / +185 °F to +257 °F) |
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Power consumption (at 12 V)
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1.8 W typ. (operation),
< 25 mW (stand-by) |
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Reverse voltage protection; Load dump protection
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Via Cables CBEP410 / 415 / 420 / 430 / 450
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Host interface
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Ethernet connection and protocol
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100 Base-T, Full-Duplex required, XCP-on-UDP/IP
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IP address
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Dynamic via INCA or configuration tool
(default 192.168.40.44) |
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Inputs
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Channels
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8
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Supported thermocouples
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Type B, E, J, K, N, S, T, R, automatically detected via splitter cable
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Resolution
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1 mK over whole measurement range, 24 bit ΔΣADC
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Sampling rate
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0.1 Samples/s to 50 Samples/s, configurable per channel
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Size and Weight
Anti-aliasing filter (in hardware)
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ΔΣADC combined with single-pole low pass filter with 350 Hz corner frequency
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Electrical isolation of inputs
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Channel to channel and channel to supply
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Maximum common mode voltage
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±100 V [1]channel to supply ground
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Accuracy [2]
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Basic accuracy ΔTg
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B ±(0.10 % x (TMeas - Tcjc) ±5.0 K)
E ±(0.10 % x (TMeas - Tcjc) ±0.2 K) J ±(0.06 % x (TMeas - Tcjc) ±0.2 K) K ±(0.05 % x (TMeas - Tcjc) ±0.25 K) N ±(0.07 % x (TMeas - Tcjc) ±0.38 K) R ±(0.10 % x (TMeas - Tcjc) ±2.0 K) S ±(0.10 % x (TMeas - Tcjc) ±2.0 K ) T ±(0.10 % x (TMeas - Tcjc) ±0.3 K) |
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Maximum temperature drift ΔTd
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B ±0.2 K/K x (Tenv - 25 °C)
E ±0.008 K/K x (Tenv - 25 °C) J ±0.008 K/K x (Tenv - 25 °C) K ±0.01 K/K x (Tenv - 25 °C) N ±0.016 K/K x (Tenv - 25 °C) R ±0.008 K/K x (Tenv - 25 °C) S ±0.008 K/K x (Tenv - 25 °C) T ±0.01 K/K x (Tenv - 25 °C) |
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Accuracy ΔTi depending on the internal resistance RTC of the TC at RTC> 50 Ω
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B ±0.04 K/Ω
E ±0.0015 K/Ω J ±0.0015 K/Ω K ±0.002 K/Ω N ±0.003 K/Ω R ±0.015 K/Ω S ±0.015 K/Ω T ±0.002 K/Ω |
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Accuracy of cold junction compensation ΔT cjc
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±0.4 K, over whole operation temperature range
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Maximum temperature drift ΔTdcjc of cold junction compensation
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±0.002 K/K x (Tenv - 25 °C)
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Support by ETAS Software
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Size and Weight
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Supported by INCA V5.3 and higher, INTECRIO V3.0 and higher, ES400 configuration and integration tool for XCP applications
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[1] 60 V maximum for use inside the US.
[2] Total error of a temperature measurement ΔT = ΔTg + ΔTd + ΔTi + ΔTcjc + ΔTdcjc.
This product has been developed and released for use in automotive applications. For usage in other domains please contact your ETAS representative.
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