Emerson 848T Ambient Temperature Effect

Reference Manual
00809-0100-4697, Rev EA
October 2011
A-7
Rosemount 848T
Ambient Temperature Effect
Transmitter may be installed in locations where the ambient temperature is between -40 and 85 °C (-40 and 185 °F)
Table 3. Ambient Temperature Effects
NIST Type Accuracy per 1.0 °C (1.8 °F) Change in Ambi ent Temperature(1)C
(1) Change in ambient is in reference to th e calibration temperature of the transmitter (20 °C (68 °F) typical from the factory).
Temperatur e Range (°C)
RTD
Pt 50 ( = 0.00391) • 0.004 °C (0.0072 °F) NA
Pt 100 ( = 0.00391) • 0.002 °C (0.0036 °F) NA
Pt 100 ( = 0.00385) • 0.003 °C (0.0054 °F) NA
Pt 100 ( = 0.003916) • 0.003 °C (0.0054 °F) NA
Pt 200 ( = 0.003916) • 0.004 °C (0.0072 °F) NA
Pt 200 ( = 0.00385) • 0.004 °C (0.0072 °F) NA
Pt 500 • 0.003 °C (0.0054 °F) NA
Pt 1000 • 0.003 °C (0.0054 °F) NA
Cu 10 • 0.03 °C (0.054 °F) NA
Cu 100 (a=428) • 0.002 °C (0.0036 °F) NA
Cu 50 (a=428) • 0.004 °C (.0072 °F) NA
Cu 100 (a=426) • 0.002 °C (0.0036 °F) NA
Cu 50 (a=426) • 0.004 °C (.0072 °F) NA
Ni 120 • 0.003 °C (0.0054 °F) NA
Thermocouple (R = the value of the reading)
Type B • 0.014 °C
• 0.032 °C - (0.0025% of (R - 300))
• 0.054 °C - (0.011% of (R - 100))
•R 1000
•300  R < 1000
•100  R < 300
Type E • 0.005 °C + (0.00043% of R) •All
Type J, DIN Type L • 0.0054 °C + (0.00029% of R)
• 0.0054 °C + (0.0025% of |R|) •R  0 •R 0
Type K • 0.0061 °C + (0.00054% of R)
• 0.0061 °C + (0.0025% of |R|) •R  0 •R 0
Type N • 0.0068 °C + (0.00036% of R) •All
Type R, Type S • 0.016 °C
• 0.023 °C - (0.0036% of R) •R  200 •R 200
Type T, DIN Type U • 0.0064 °C
• 0.0064 °C + (0.0043% of |R|) •R  0 •R 0
GOST Type L • 0.007 °C
• 0.007 °C + (0.003% of IRI) •R 0 •R  0
Millivolt • 0.0005 mV NA
2- and 3-wire Ohm • 0.0084 ohms NA
4–20 mA (Rosemount) • 0.0001 mA NA
4-20 mA (NAMUR) • 0.0001 mA NA