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73VR2102 / 73VR2104 / 73VR2106 / 73VR2108 / 73VR2110 / 73VR2112 USERS MANUAL EM-7395-B Rev.24
8. OPERATING FUNCTIONS
8.1 GENERAL DESCRIPTIONS
Arithmetic and logic functions are performed and stored at the Function pens. For setting up Function pens, please
refer to Section “5.5.3 PEN SETTING (FUNCTION)”.
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OPERATING FUNCTIONS
CATEGORY
FUNCTIONS
Arithmetic functions
Addition/Subtraction, Multiplication, Division
Logic functions
AND, OR, XOR, NOT
Math functions
Square root extraction, Power
Accumulation
Analog accumulation (until reset)
Filter
Moving average, First order lag
Peak hold
Peak (maximum value) hold, Peak (minimum value) hold
F value calculation
Typically used to calculate the sterilization or disinfection time in predefined conditions
Others
Anemoscope (16 directions)
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PARAMETERS
• Measuring data: Specify input pens. With analog data, engineering unit data is used for computations. Data sampled
in the last cycle can be also used.
• Function data: Specify pen numbers used to store operation function results.
• Coefficients (K1, K2)
• Constants (A1, A2, A3)
• Other parameters: Number of data sampled to be used for the moving average function, Time constant for the first
order lag operation, Reference temperature and Z value for F value calculation.
Caution 1
If ‘Last’ data is assigned to X1 and X2, the first function data will be missed.
Measuring data and function data are used as numbers without an engineering unit. No adjustment between different
scales or engineering units are performed automatically.
The function operations are consecutively performed from the smallest Function Pen No. When you take one or more
function data as parameters for another function, be sure of the orders of functions.
Data range handled by these functions are from -1 x 10
10
to 1 x 10
10
. Function result values out of this range will be
handled as errors. For F value calculation, the range is from 0 to 1 x 10
10
.
The effective number of digits for the calculation result is 6 digits. Function result values exceeding the effective number
of digits may have intolerable deviations.
8.2 DETAILED PARAMETER SETTING
8.2.1 ARITHMETIC FUNCTIONS
Addition / Subtractions
K1X1 + K2X2 + A
Specify measured data or function data for X1 and X2 (analog signal only), gains (K1 and K2) and bias (A1).
Multiplication
(K1X1+A1) (K2X2+A2) + A3
Specify measured data or function data for X1 and X2 (analog signal only), gains (K1 and K2) and biases (A1, A2 and A3).
Division
(K1X1+A1) / (K2X2+A2) + A3
Specify measured data or function data for X1 and X2 (analog signal only), gains (K1 and K2) and biases (A1, A2 and A3).