CTI 062-00108, Installation And Operation Manual

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C T I 2552 Installation and O peration G uide
Figure 4 Effect of Voltage Input - 100 Ohm Platinum
Figure 5 Effect of Voltage Input - Millivolts
1.5 Effect of Out-of-Range Input Signals
RTD inputs exceeding 849.8 degrees C for 100 Ohm platinum or 260.0 degrees C for 120 Ohm nickel
will cause the overrange bit to be set. A maximum temperature of 849.9 degrees C for 100 Ohm
platinum or 260.1 degrees C for 120 Ohm nickel will be returned for any positive overrange input.
Similarly an input below -199.8 degrees C for 100 Ohm platinum or -79.8 degrees C for 120 Ohm
nickel will cause the overrange bit to be set. A minimum temperature of -199.9 degrees C for 100
Ohm platinum or -79.9 degrees C for 120 Ohm nickel will be returned for any negative underrange
input.
Millivolt inputs exceeding 103.04 millivolts will cause the overrange bit to be set. A reading of 103.05
millivolts will be returned for any positive overrange input.
Similarly a millivolt input below 0 millivolts will cause the overrange bit to be set. A reading of 1
millivolt will be returned for any negative underrange input.