KROHNE OPTITEMP TT 51 EN - Manual (Page 41)

TECHNICAL DATA
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TT 51 SERIES
www.krohne.com 09/2010 - 4000754201 - MA TT 51 R01 en
Measuring accuracy
Accuracy RTD and thermocouple: for detailed information refer to RTD and T/C
accuracy table on page 49.
Resistance digital accuracy:
0...1000 Ω: max. of ±20 mΩ or ±0.02% of measured value
1000...4000 Ω: ±0.025% of measured value; max. 0.5 Ω
Resistance analogue accuracy: ±0.03% of span
Voltage digital accuracy: ±5 µV or ±0.01% of measured value
Voltage analogue accuracy: ±0.03% of span
Total accuracy = sum of digital and analogue accuracy, calculated as an RMS
(Root Mean Square) value
Temperature influence RTD and Thermocouple: for detailed information refer to RTD and T/C
accuracy table on page 49.
Resistance: ±0.005% of span per °C or °F
Voltage: ±0.005% of span per °C or °F
Cold Junction Compensation (CJC) In-head transmitter: In-head transmitter: In-head transmitter: In-head transmitter:
±
0.5°C within ambient temperature -40...+85°C /
± 0.9°F within ambient temperature -40...+185°F
Rail-mount transmitter: Rail-mount transmitter: Rail-mount transmitter: Rail-mount transmitter:
±
0.5°C within ambient temperature -20...+70°C /
± 0.9°F within ambient temperature -4...+158°F
Temperature influence CJC ± 0.005°C per °C / ±0.005°F per °F
Sensor wire influence RTD and resistance, 2-wire: adjustable wire resistance compensation
RTD and resistance, 3-wire: negligible, with equal wire resistance
RTD and resistance, 4-wire: negligible
Thermocouple and voltage: negligible
Supply voltage influence <±0.001% of span per V within specified limits
Long-term drift Max. of ±0.01°C or ±0.01% of span per year /
Max. of ±0.02°F or ±0.01% of span per year
Operating conditions
Temperature Temperature Temperature Temperature
In-head transmitter Operating and storage temperature: Operating and storage temperature: Operating and storage temperature: Operating and storage temperature:
Standard version: -40...+85°C / -40...+185°F
IS version: for detailed information refer to Temperature data for areas with
potentially explosive atmospheres on page 46.
Rail-mount transmitter Storage temperature: Storage temperature: Storage temperature: Storage temperature:
Standard version: -40...+85°C / -40...+185°F
Operating temperature: Operating temperature: Operating temperature: Operating temperature:
Standard version: -20...+70°C / -4...+158°F
IS version: for detailed information refer to Temperature data for areas with
potentially explosive atmospheres on page 46.
Humidity 5...95% RH (non-condensing)
Protection category Protection category Protection category Protection category
In-head transmitter Housing: IP65
Terminals: IP00
Rail-mount transmitter Housing: IP20
Terminals: IP00