LACO Technologies TITAN VERSA C, Руководство по эксплуатации и обслуживанию

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6 OPERATION
LACO Technologies TITAN VERSA Operations and Maintenance Manual 95
•
U = 6.9 V -> Mantissa = 6.9
Exponent The "Exponent" output corresponds with the leak rate exponent:
•
it increases by 1 V per decade,
•
the starting decade corresponds with 10 V.
Formula
U = Voltage measured (V) on analog output D
0
= Low decade for 0 V
Exponent = 10 – U + D
0
Example 1
Low decade at 10-12 (10 V = -12) -> D
0
= -12
• U = 7 V -> Exponent = 10 - 7 - 12 -> Exponent = -9
• U = 2 V -> Exponent = 10 - 2 - 12 -> Exponent = -4
Example 2
Low decade at 10-10 (10 V = -10) -> D0 = -10
• U = 7 V -> Exponent = 10 - 7 - 10 -> Exponent = -7
• U = 2 V -> Exponent = 10 - 2 - 10 -> Exponent = -2
Logarithmic
The "Logarithmic" output corresponds with the leak rate value:
• it increases by 1 V per decade,
• the starting decade corresponds with 0 V.
Formulas
U = Voltage measured (V) on analog output D0 = Low decade for 0 V
Mantissa = 10 (U- Integer value (U))
Exponent = Integer value (U) + D
0
Leak rate = Mantissa x 10 Exponent
Example 1
Low decade at 10-12 (0 V = 1 10-12) -> D0 = -12
•
V = 3 91 V -> Leak rate = 10 (3 91-3) x 10 (3-12 ) = 8 13 10 -9
•
V = 8 25 V -> Leak rate = 10 (8 25-8) x 10 (8-12 ) = 1 78 10 -4
Example 2
Low decade at 10-10 (0 V = 1 10-10) -> D0 = -10
•
V = 3 91 V -> Leak rate = 10(3 91-3) x 10 (3-10 ) = 8 13 10 -7
•
V = 8 25 V -> Leak rate = 10(8 25-8) x 10 (8-10 ) = 1 78 10 -2
Compound The "He Compound" output is a combination of mantissa and exponent:
• the integer part represents the exponent
• the decimal part represents the mantissa.
Formulas
U = Voltage measured (V) on analog output
Mantissa = 10 x (U - Integer value (U))