KROHNE OPTITEMP TT 30 C-R EN - Manual (Page 37)

TECHNICAL DATA
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OPTITEMP TT 30 C/R
www.krohne.com 11/2012 - 4000753302 - MA OPTITEMP TT 30 C/R R02 en
Measuring accuracy
Accuracy RTD and thermocouple: for detailed information refer to RTD and T/C accuracy
table on page 46.
Typically ± 0.1% of input span:
• RTD: Max. of ±0.2 °C / ±0.4 °F or ±0.1%
• Resistance / potentiometer: Max. of ±0.1 Ohm or ±0.1%
• Voltage and thermocouple: Max. of ±20 µV or ±0.1%
Linearity RTD, resistance / potentiometer and voltage: ±0.1%
Thermocouple: ±0.2%
Temperature influence RTD and thermocouple: for detailed information refer to RTD and T/C accuracy
table on page 46.
Resistance and voltage: ±0.01% of span per °C and
±
0.006% of span per °F
Cold Junction Compensation
(CJC)
In-head transmitter: In-head transmitter: In-head transmitter: In-head transmitter:
±
0.5 °C @ ref conditions (23 °C)
± 0.9 °F @ ref conditions (73 °F)
Rail-mount transmitter: Rail-mount transmitter: Rail-mount transmitter: Rail-mount transmitter:
±
0.5 °C @ ref conditions (23 °C)
± 0.9 °F @ ref conditions (73 °F)
Temperature influence (all
inputs)
Reference temperature: 23°C / 73°F
Max. of ±0.25% of input span per 25°C or ±0.25°C of input span per 25°C
Max. of ±0.28% of input span per 50°F or ±0.5°F of input span per 50°F
Note that if zero-deflection >100% of input span, you have to add 0.125% of input
span per 25°C or 0.14% of input span per 50°F per 100% zero-deflection.
Temperature influence CJC
(Thermocouple)
Reference temperature: 23°C / 73°F
± 0.5°C per 25°C / ±1.0°F per 50°F
Instrument calibration output 4...20 mA, ±8 µA
Sensor wire resistance influence RTD and resistance / potentiometer, 3-wire connection: negligible, with equal wire
resistance
RTD and resistance / potentiometer, 4-wire connection: negligible
Thermocouple and voltage: negligible
Load influence Negligible
Supply voltage influence Negligible
RFI influence In-head transmitter: typically ±0.1% of input span (0.15...80 MHz, 10 V / 80...1000
MHz, 10 V/m)
Rail-mount transmitter: typically ±0.2% of input span (0.15...80 MHz, 10 V / 80...1000
MHz, 10 V/m)
Long-term drift Max. ±0.1% of input span per year
Operating conditions
Temperature Temperature Temperature Temperature
In-head transmitter Non-Ex version: -40...+85°C / -40...+185°F (operating and storage temperature)
Ex version: -40...+85°C / -40...+185°F (storage temperature),for detailed information
about the ambient temperatures refer to Temperature data for potentially explosive
areas on page 42.
Rail-mount transmitter Non-Ex version: -20...+70°C / -4...+158°F (operating and storage temperature)
Ex version: -20...+70°C / -4...+158°F (operating and storage temperature)
Humidity 5...95% relative humidity (non-condensing)
.book Page 37 Friday, November 9, 2012 3:50 PM