Chauvin Arnoux C.A 61 Mode D'emploi page 46

Measurement of DC current
Range
30 mA
Measurement extent: -5.00...30.00 mA
Max permitted voltage: 30 V DC or AC peak
Series mode rejection: ³ 60 dB at 50 and 60 Hz
Common mode rejection: ³ 120 dB at 50 and 60 Hz
Temperature coefficient: £ 10% of the accuracy/°C
Scale available calibrated in % (0% = 4 mA and 100% = 20 mA)
C.A 63
Temperature measurement by thermometric resistance
Sensor
-200...850°C (-328...1562°F)
Pt 100 W
The accuracy is given for connection by 3 wire balanced installation. An imbalance of 400 mW
causes an additional error of 1°C. In addition, take into account the error of the temperature
sensor used.
Resolution: 0.1°C from -100 to +300°C (1°C beyond these values)
Permitted line resistance: 20 W max
Measurement current: 400 µA environ
Temperature coefficient: £ 10% of the accuracy/°C
C.A 65
Temperature measurement by thermoelectric couple
Sensor
-250...1372°C (-418...2502°F)
K Couple
-250...400°C (-418...752°F)
T Couple
-210...1200°C (-346...2192°F)
J Couple
L Couple -200...900°C (-328...1652°F)
N Couple -250...1300°C (-418...2372°F)
R Couple -50...1769°C (-58...3216°F)
S Couple -50...1769°C (-58...3216°F)
The accuracy is given for a reference junction at 0°C (32°F). The use of the internal reference
junction may add a further error of 0.3°C (0.6°F) for a temperature measured from -50°C to full
scale of the sensor. Also, take into account the error of the temperature sensor itself.
Resolution Accuracy over 1 year
0.01 mA
Measurement extent
Measurement extent
± (0.2% rdg + 2)
Accuracy over 1 year depending on temperature
-100°C £ q £ 300°C : ±(0.1% rdg + 0.1°C)
q < -100°C or q > 300°C : ±(0.1% rdg + 1°C)
Accuracy over 1 year depending on temperature q
q < -100°C : ±(1% rdg + 2°C)
-100°C £ q £ 300°C : ±(0.2% rdg + 0.2°C)
q > 300°C : ±(0.2% rdg + 2°C)
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Voltage drop
< 0.5 V
±(0.2% rdg + 2°C)