PRECISE-LOG Data Loggers User’s Manual
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Built-In Equations
Equation and Channel Type are two essential parameters to make sure the physical
measurement can be converted correctly.
An equation is a software functionality identified by its name of up to 16 characters. A built-in
equation is an equation provided by SiteView software to convert a measurement for a specific
channel type.
A channel must have an equation assigned to it in order to make the measurement conversion.
“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
0-5 VDC
VoltageDC
Voltage DC
0-20 VDC
VoltageDC
Voltage DC
4-20 mA DC
CurrentDC
Current DC
0-50 mA DC
CurrentDC
Current DC
Thermocouple
Range:
-8 to +73 mV
ThermocoupleE
ThermocoupleJ
ThermocoupleK
ThermocoupleN
ThermocoupleT
VoltageDC
Thermocouple E
Thermocouple J
Thermocouple K
Thermocouple N
Thermocouple T
Voltage DC
Thermocouple
Range:
-2 to +18 mV
ThermocoupleB
ThermocoupleE
ThermocoupleJ
ThermocoupleK
ThermocoupleN
ThermocoupleR
ThermocoupleS
ThermocoupleT
VoltageDC
Thermocouple B
Thermocouple E
Thermocouple J
Thermocouple K
Thermocouple N
Thermocouple R
Thermocouple S
Thermocouple T
Voltage DC
X
InternalBattery
Measure the internal battery
voltage level
X
ExternalPower
Measure the external power
supply