Kaye Validator AVS, User Manual

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Chapter 2. The Validator Hardware
2.3 Sensor Input Modules
The Validator plug-in Sensor Input Modules (SIMs) help reduce the time it takes to perform
validation studies. Each SIM has:
•
12 sensor input connections
•
A memory chip to store calibration offsets, SIM serial number, slot location, and the serial
number of the Validator measurement board where calibration was performed
•
A cold junction reference RTD to help maintain measurement accuracy through changing
environmental conditions
Each SIM accepts T, J, B, S, R, N and K type thermocouples as well as current and voltage
inputs up to 10 VDC. Using 4 SIMs, you can attach up to 48 inputs in any combination of
thermocouples, voltage, or current inputs.
SIMs are designed to be wired once and used repeatedly. You can wire SIMs yourself, or buy
pre-wired SIMs to further reduce preparation time. Once the SIMs are wired, you can
calibrate multiple harnesses at the same time and store them for later use, saving you valuable
preparation time. Since calibration of thermocouples requires compensation for errors
measured in fractions of microvolts, making these offsets specific to this instrument and SIM
location, it is recommended that you use the supplied erasable labels to record:
•
SIM serial number
•
SIM slot number
•
Serial number of the Validator where the sensors were calibrated and the date they were
calibrated
When you want to use these SIMs, just pull them off the shelf and plug them in. The
calibration offsets are stored in the SIM's internal memory. To prevent you from using the
wrong instrument or SIM slot, the system will alert you during the qualification run that the
SIM is plugged into the wrong instrument or the wrong SIM slot. The SIMs are made of high
impact materials that will withstand 5000 insertions, and are designed with a tilt and a drain
hole to minimize the effects of condensation.
IMPORTANT: SIMs are recognized by the system when you power up the Validator. Make
sure all SIMs are connected prior to powering up the Validator, or you will
have to power down, insert your SIMs, and power up again. If a SIM is
disconnected after power up, that SIM's sensors will be read as Open and
no data will be recorded for that SIM. To rectify this, power down,
reconnect the SIM, and power back up.
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Kaye Validator User’s Manual