eDAQ Quad Tc/mV, User Manual

Page: 17 / 28

Chapter 2 — The Quad Tc/mV Amp 13
Manual Calibration
If known temperature sources are available then very accurate
calibration can be achieved using the raw mV signal setting. The signal
can be calibrated over small ranges with a linear function using the
Chart software Units Conversion feature (see the
Chart Software
Manual ). Over wider ranges the Multipoint Calibration extension
software plug-in can be used, see
http://www.edaq.com/chart_extns_list.html
Tc
Type
Temperature Range Limits of Error
°C °F Standard Special
T –200 to –66 –328 to –87 ±1.5% —
–66 to 0 –87 to +32 ±1°C, ±2°F —
0 – 133 32 – 270 ±1°C, ±2°F ±0.5°C, ±1°F
133 – 350 270 – 662 ±0.75% ±0.4%
J 0 – 293 32 – 559 ±2.2°C, ±4°F ±1.1°C, ±2°F
293 – 750 559 – 1382 ±0.75 0.4%
E –200 to –100 –328 to –148 ±1% —
–100 to 0 –148 to +32 ±1.1°C, ±3°C —
0 – 340 32 – 644 ±1.7°C, ±3°F ±1°C, ±2°F
340 – 900 644 – 1652 ±0.5% ±0.4%
K –200 to –110 –328 to –166 ±2% —
–110 to 0 –166 to +32 ±2.2°C, ±4°F —
0 – 293 32 – 559 ±2.2°C, ±4°F ±1.1°C, ±2°F
293 – 1250 559 – 2282 ±0.75% ±0.4%
N 0 – 293 32 – 559 ±2.2°C, ±4°F ±1.1°C, ±2°F
0 – 1250 559 – 2282 ±0.75% ±0.4%
R, S 0 – 600 32 – 1112 ±1.5°C, ±3°C ±0.6°C, ±1°F
600 – 1450 1112 – 2642 ±0.25% ±0.1%
B 870 – 1700 1598 – 3092 ±0.5% —
Table 2–2
Limits of Error for
Thermocouples,
Reference Junction
0 °C (32 °F)