Info-Con Connector - Fluke 1523 Technical Manual

1523, 1524 Reference Thermometer

INFO-CON Connector

Then send the serial command CALx:DEV:LOCK 1 to the unit, where x is the channel
that the probe is connected to.
To unlock a probe send the SYST:PASS:CEN XXXX (where xxxx is the unit pass-
word). Then send the command, CALx:DEV:LOCK 0
Any unit can unlock a locked probe. The 9940 software can read in a locked probe's
data.
If the probe lock is on and a different probe is attached to the unit or channel the dis-
play will show "LOCKED". Measuring is disabled.
If probe lock is off, the instrument can be used with any probe. Refer to the Digital
Communication Interface section of this manual
3.5 INFO-CON Connector
The probe(s) connects to the top of the 1523/24 reference thermometer using a Hart
INFO-CON connector. The probe connector will fit snugly and lock into place when it
is fully inserted. The connector includes a memory device that stores the unique char-
acteristics of the probe, allowing the instrument to measure temperature accurately.
Generally the probe will be purchased with the connector attached and programmed
by the factory. Connectors can be purchased separately and installed on probes by the
user. The INFO-CON can be programmed directly from the 1523/24 by authorized
personnel using the serial port commands or the 9940 software (see Section 6, Digital
Communication Interface on page 43).
If it is necessary to connect an INFO-CON connector to a probe in the field, follow the
diagram below for connecting the wires of the probe to the connector terminals. Be-
fore opening the INFO-CON case, be sure to be grounded with an ESD strap to avoid
damaging the memory chip. If a shield wire is present it should not be connected.
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