Brooks Instrument 5850E - Manual (Page 29)

Brooks ® Model 5850E
3-9
Section 3 Operation Installation and Operation Manual
X-TMF-5850E-MFC-eng
Part Number: 541B102AHG
September, 2009
Example:
Controller error = 0.7%
Measured TP2 voltage = -0.567 Volts
TP2 correction = 0.7 x 0.450 = 0.315 Volts
New TP2 correction = 0.315 + (-0.567) = -0.252 Volts
Adjust the linearity potentiometer for an output equal to the new TP2
voltage and then repeat Steps “f,” “g” and “h.”
Note: The voltage at TP2 can range from -10 to +3 Volts. It is recom-
mended, however, that this voltage stay between -2.5 and +2.5 Volts for
proper operation. If the recommended voltage range is exceeded, the
desired accuracy and/or signal stability may not be achieved. If one of
the limits is reached, check the restrictor sizing (refer to Section 4-7).
Figure 3-6 Adjustment Potentiometer Location