Fuji Electric ZKMA, Инструкция по эксплуатации

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- 100 - INZ-TN2ZKMA-E
10.5.21 Fuel coefficient setting (option)
Description

You can set the fuel coefficient [k], which is for calculation of combustion efficiency, using this func-
tion.

Settable range
：
0.00 to 1.99
Procedu
re
Operation
(example)
Setting the fuel coefficient [k] to 0.73.
Key operation Description
Displayed message
(LCD)
(1) Display the screen on the right in accordance with the key op-
eration summary and press the
key.
PARAMETER MENU
FUEL COEFF.
(2)
Use the key and the key to input the fuel coefficient.
FUEL COEFF.
0 .73
(3)
Press the key to fix.
FUEL COEFF.
0.73
(4)
Press the key to return to the screen on the right.
PARAMETER MENU
FUEL COEFF.
Calculation and display of combustion efficiency

Using the following formula, calculate the combustion efficiency E.
Combustion efficiency E [
％
] =100 – Fuel coefficient [k]
•
Temperature of flue gases [K]
Standard oxygen concentration value [vol%]
－
Measured oxygen concentration value [vol%]
Note 1: Fuel coefficient [k] is according to the fuel used.
Refer to the table below.
Note 2: Temperature of flue gases should be measured separately.
Connect the electromotive force signal of the thermocouple type temperature detector (R-
type) to this unit.
*Type R or type K, depending on the model.
Note 3: The standard oxygen concentration value is to be 20.8 [vol
％
].
Note 4: When the internal calculation result of the combustion efficiency [E]
exceeds 0 [%]
≤
E
≤
100 [%],

% is displayed.
Natural gas k = 0.66
Oil k = 0.7
Bituminous coal k = 0.73
Note 5: Measurement range is between 0°C to 1000°C.
If the temperature exceeds the above range, “

°C” is displayed.