Microedge Instruments iLog Series, Руководство пользователя

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iLog Data Loggers User’s Manual Page 23/63
“Digit” built-in equation can be assigned to any channel type. If you assign “Digit” equation to
a channel the physical measurement will be the original digital value measured by ADC
(Analog-to-digital converter) hardware.
The following table lists all available built-in equations for all channel types:
Channel Type Equation Name Equation Description
Internal-Thermistor Temperature Temperature
External-Thermistor Temperature Temperature
0-10 VDC VoltageDC Voltage DC
25 mA DC CurrentDC Current DC
Thermocouple
Rage1:
-8 to +73 mV
ThermocoupleE
ThermocoupleJ
ThermocoupleK
ThermocoupleN
ThermocoupleT
VoltageDC Thermocouple E
Thermocouple J
Thermocouple K
Thermocouple N
Thermocouple T
Voltage DC
Thermistor Temperature
Resistance Default external thermistor
type.
Any resistor with range
bigger than 1 Kohm
Measuring & Logging
During the session of logging, when it’s time to sample, iLog data logger measures the signal of
each enabled channel, converts it to digital value and saves to the on-board memory.
iLog data logger uses a group of preset parameters to decide when and how to take in data and
save it to the memory. Those parameters can be configured by SiteView software and their
definitions are given as below:
Start Time:
This parameter specifies the date and time when the logger starts the session of logging.
End Time:
This parameter specifies the date and time when the logger will stop the session of logging.
This value may be overridden by
Logging Mode parameter. . If Logging Mode was set to
Continue Logging , the Start Time and the End Time will be shifted forward.
Sampling Interval:
This parameter specifies the time span the logger will wait after it takes the first sample and
before it takes the second sample.