Honeywell SLG 700 Option Manual page 117

The following function types are supported:
1. Flow compensation, linear. Used for density compensation of volume flow.
2. Flow compensation, square root. Usually, IN_1 is pressure, IN_2 temperature and IN_3 is the
compressibility factor Z.
3. Flow compensation, approximate. Both IN_2 and IN_3 would be connected to the same
temperature.
�� = √ (��_1)×(��_2)×(��_3)×(��_3) × [��������������]
4. BTU flow, where IN_1 is inlet temperature, and IN_2 the outlet temperature.
5. Traditional Multiply Divide
6. Average
f = number of inputs used in computation (unusable inputs are not used).
7. Traditional Summer
8. Fourth order polynomial. All inputs except IN_LO (not used) are linked together.
Rev.5
�������� = ������
(��_1)
�� =
(��_2)
�������� = ������
(��_1)
(��_2)
√
�� =
(��_3)
�������� = ������
�������� = ������
�� = (��_1 − ��_2) × [��������������]
�������� = ������
(��_1)
�� = + (��_3)× [��������������]
(��_2)
(���� + ( ��_1 ) + ( ��_2 ) + (��_3))
�������� =
�������� = ���� + ( ��_1 ) + ( ��_2 ) + (��_3)
�������� = PV + (��_1)
FOUNDATION Fieldbus Option User's Manual
× [��������������]
× [��������������]
��
2 3 4
+ (��_2) + (��_3)
Page 101