Omron CRT1 - 10-2008 Operation Manual page 507

Temperature Input Unit Functions
Note
484
1. The bias compensation value may not be accepted if there is a large tem-
perature difference between the Terminal Block and ZERO-CON (0 ° C
bath). If this problem occurs, correct the adjustment system by using a
ZERO-CON compatible with the sensor being adjusted or other means.
2. Always test the indication accuracy after making user adjustments to verify
that the adjustments are correct. Test the indication accuracy at three
points: the lower limit value, an intermediate value, and the upper limit val-
ue.
• Connect the external devices as shown in the following diagram.
• After verifying that the ZERO-CON is set to 0 ° C, set the STV's output
voltage to produce a voltage equivalent to the test voltage.
Note Always use the compensating conductors (the same kind that will be
used with the sensor being adjusted) to connect the ZERO-CON to
the CRT2-TS04T's input terminals.
ZERO-CON
(0 ° C bath)
STV
OUTPUT
INPUT
CRT1-TS04T
Compensating
conductors
Input (+)
Input (–)
Section 11-5