Perle Systems Sds4 Manuel d'utilisateur télécharger pdf (Page 345)

344

Calibrating I/O

Calibrating Voltage

When calibrating the IOLAN Analog input for voltage, you will need a calibration meter that is better

than .1% volts precision. When you calibrate one channel, all voltage channels are automatically

calibrated for that range; if another channel is set for a different range, you will need to calibrate that

channel separately, but all channels that use that range are also automatically calibrated.

Calibrating Current

When calibrating the IOLAN Analog input for current, you will need a calibration meter that is better

than .1% current precision. Each channel needs to be calibrated individually.

Calibrating Temperature Input

To calibrate an Analog (Temperature) input channel, read the section that applies to the type of input

you are calibrating. Note that calibration will be done for the active channel configuration; for

example, if Channel A1 is set to thermocouple, you cannot calibrate it for RTD. During the

calibration process, you will be asked to apply the minimum and maximum range value to the

channel in either mV or Ohms; for example, to calibrate for thermocouple J 0 to 760C, you will be

prompted to first apply -80mV and then +80mV to the channel.

Also, you cannot actively calibrate disabled channels (although if you enable the channel and then set

it for the type of thermocouple or RTD that has already been calibrated on another channel, it will

also be calibrated).

Calibrating Thermocouple

When calibrating the IOLAN Analog input for thermocouple, you will need a calibration meter that is

better than .15% accuracy. When you calibrate one channel, all thermocouple channels are

automatically calibrated for that range; if another channel is set for a different range, you will need to

calibrate that channel separately, but all channels that use that range are automatically calibrated.

Calibrating RTD

When calibrating the IOLAN Analog input for RTD, you will need a resistor that is better than .05%

Ohms accuracy. When you calibrate one channel, all RTD channels are automatically calibrated for

that range; if another channel is set for a different range, you will need to calibrate that channel

separately, but all channels that use that range are automatically calibrated.

1 2 ... 340 341 342 343 344 345 346 347 348 349 350 ... 459 460

Pas de commentaire

Perle Systems Sds4 Manuel d'utilisateur Page 345