Aux analog input setup – Super Systems 9205 Series User Manual

Page 59

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Series 9205 Operations Manual Rev A

58

Integral Preset

This is the integral preset value. This field provides an offset for the starting point for PID control, also

referred to as “Load Line” or “Manual Reset”. The range is –100 to 100.

High Limit

This is the high limit value. The range is –100 to 100.

Low Limit

This is the low limit value. The range is –100 to 100.

Aux Analog Input Setup

The Auxiliary Analog Input Setup menu option allows the

user an input selection of three inputs per board, three input

corrections per board, and three input open T/Cs per board.

There are eight (8) boards available. It is configurable for

voltage of T/C (universal input), and it is typically used for

Load T/Cs, motor speed feedback, current speed devices,

and Auxiliary Flow Meters.

Before connecting your input source to the terminals, please

verify that the input type is set up correctly. If the Input Type

is not correct, do not connect the input source to the

terminals, as damage can occur. Please consult SSi by

calling (513) 772-0060 before making any changes.

Input 1 – Input 3

This will select the input types for the board. The options are:

T/C B

160 mV

40 mV

T/C C

T/C R

20 mV

T/C E

T/C S

4-20 mA/124

Ω

T/C J

T/C T

4-20 mA/62

Ω

T/C K

2.5 volts

25 volts

T/C N

1.25 volts

12.5 volts

T/C NNM

80 mV

Input 1 Correction – Input 3 Correction

This option will set a correction curve for the input. The options for the input corrections are: not used,

Curve 1 – Curve 3.

Input 1 Open T/C – Input 3 Open T/C

This option will allow the user to set the direction of the open T/C for each input. The options are: Up Scale

or Down Scale.

Calibration (Auxiliary Analog Inputs)

The user will need a calibrator capable of outputting a temperature, voltage, and millivolt signal to calibrate

the zero, span or cold junction value. The user will need to connect the calibrator to one of the inputs on

the data logger for the channel that will be calibrated. It is recommended to let everything (calibrator and

data logger) sit for approximately thirty minutes to allow the temperature to achieve equilibrium. Set up

the calibrator for the specific thermocouple type, i.e. type K, type J, etc. Then, source a specific

temperature, like 1000°F, or millivolt to the connected input. It is recommended that the actual

temperature used be similar to an appropriate process temperature. For example, if your equipment

normally operates at 1700°F, then perform the cold junction calibration using a 1700 °F signal. It is

important to note that when performing a zero or span calibration,

do not use

regular thermocouple wiring.

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