Spectrum Controls 140 AUI 040 00sc - Manual (Page 46)

Quantum Series 140 AUI 040 00sc
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· Filter Frequencies 7.8, 13.65, 209.6, 1676 3dB
· Resolution 24 bit Sigma Delta ADC
· Data Formats DVM (both °C and °F), 16 bit unsigned, 12 bit unsigned, 16 bit signed
· Conversion Type Sigma Delta ADC
· Analog Input Conversion Rate Input Channel Update Time (V, I, TC, RTD 4wire) estimated
Filter 1 Channel 16 Channels
7.8 Hz 124ms 1992ms
13.65 Hz 73ms 1168ms
209.6 Hz 7.6ms 122ms
1.677kHz 4.7ms 76ms
+ Note: Channel update time is the time required for the module to acquire an input sign and update the module’s data
registers. The scan rate of the Quantum system will vary with application ladder and system configuration.
+ When using RTDs add 3ms per channel. For 3-wire DTR configurations double the update time of wire resistance is
measured every cycle.
+ When using thermocouples the CJC calibration time will increase scan times by 150ms and channel update times by 1ms.
+ Note: Periodic system calibration will also effect channel update times for one scan cycle.
· Normal Mode Rejection 64.5 dB, 50 Hz, 60 Hz with 50/60 Hz rejection filter selection
88dB with high noise rejection setting.
· Common Mode Rejection 96dB 50 Hz, 60 Hz with 50/60 Hz filter selected.
120dB with high noise rejection setting.
· Input Resistance > 10M Ohm Voltage/Thermocouple/RTD
=250 Ohm Current
1.1A Table - Thermocouple Accuracy
Table 1.1A shows Thermocouple Accuracy at Selected Temperatures in degrees Celsius below and illustrates how accuracy
of thermocouple input changes over the temperature range. This is caused by a non-linear slope the thermocouples exhibit
which is “steep” (10s of microvolts per degree) at high temperatures and “flat” (microvolts per degree) at low temperatures.
Thus the accuracy tends to be very good at high temperatures and remains fairly good until about –100 degrees C (depending
on thermcouple type) where it becomes worse. The accuracy table below assumes that the module is mounted in a vertical
orientation and the terminal block door is closed.
Thermocouple Accuracy at Selected Temperatures in degrees Celsius
TC Type Temp Ty p Max Temp Ty p Max Temp Ty p Max Temp Ty p Max Temp Ty p Max
J -210 2.5 4.5 -200 2.5 4.1 -100 1.1 2.1 2 7 5 0.9 1.7 7 6 0 0.8 1.7
K -270 1 7 2 4 -200 2 4.8 -100 1.2 2.5 5 5 0 1 2.0 1370 1.1 3.0
T -270 13.5 2 0 -200 5.8 1 0 -100 1.6 2.8 6 5 0.9 1.7 4 0 0 0.7 1.4
E -270 1 3 18.5 -200 5.5 1 0 -100 1.2 2.2 3 6 5 0.8 1.4 1000 1 1.9
R 0 2.3 5.6 8 8 5 1 2.7 1768 1.1 3.3
S 0 3.5 5.6 8 8 5 1.7 3.0 1768 1.8 3.5
B 300 3.9 10.8 60 0 2.2 5.6 1060 1.5 3.2 1820 1.4 3.1
N 0 0.9 2.1 6 5 0 0.8 1.8 1300 1.1 2.3