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The MASTERLOADx.iQ registers are capable of integrating industry approved water detection devices to meet aviation JiG safety standards regarding water in fuel.  This manual describes the setup and configuration process of integrating a water detector which relies on 4-20mA analog communication.

 

 

Follow these steps below to install and configure a water detector.

 

Step 1 – Enter the Calibration mode for the Register by rotating the W&M screw counterclockwise.

 

Step 2 – Enable the Water Sensor service:
 

a.Open the I/O Setup screen in the Setup Menu.

b.Open the Services screen by pressing the Services hot key.

c.Select the Water Service field by pressing Up or Down keys and then Press Enter.

d.Select Yes and press the OK key.

e.Return to the I/O Setup screen by pressing the Close hot key.

 

Step 3 – Setup the Water Service parameters for the Analog Port of the I/O board to which the water sensor is connected. The water sensor is using the 4-20 mA current loop for its operation. The register fields related to water sensor operation can be accessed from I/O Setup screen 3:

 

a.Open I/O Setup screen 3 by pressing the Right or Left arrow key.

b.Select the Analog Input ANA field by pressing the Up or Down key.

c.Press the OK key and enter the Name of the input. Press the OK key.

d.Enter the Analog Input Setup screen by pressing the Sensor Setup hot key.

e.Select the Sensor Type field, press the OK key, and select Water Sensor from the pulldown list. Press the OK key.

f.Select the Unit of Measure field, and then select PPM as a unit of measure to be used for water level detection.

g.Activate the alarm actions when the analog input current is out of the required range. To activate the alarm, select either the <4mA or >20mA field and choose Error from the pulldown list. Press the OK key.

h.Set the water level associated with a 4mA input current. Select the 4mA is field, press the OK key, and set the value of the water level to 0. Press the OK key.

i.Set the water level associated with a 20mA input current. Select the 20mA is field, press the OK key, and set the value of the water level to 50. Press the OK key.

j.Set the time in seconds required for the water level to continuously be at the selected level before the alarm actions will be activated. Select the Analog Error Delay field, press the OK key, and enter the time in a range from 0 to 10 seconds. Press the OK key.

k.Choose what water levels detected during delivery will be printed on the delivery ticket. The average, low, or high levels can be printed by selecting the Yes options for those fields. Typically, high is set to Yes, and average and low are set to No.

l.Set the parameters for the first trigger to be used to monitor the water level during delivery:
 
- Select the first trigger field and press OK key.
- Select if an action has to occur when the water level is above or below the corresponding trigger level.
- Select the Above option from the pulldown list and press the OK key.
- Enter a trigger threshold of 15 and press the OK key.
- Select the delivery action to be taken when the trigger occurs. Select the Stop option from the pulldown list and press the OK key.
- Select the Digital Output of the I/O board to be used with the trigger. Outputs from 1 to 6 can be used.
 
NOTE: Ensure that the selected output has not been used for different actions of the register. Use the pulldown list to select the desired output.
 

m.Set the parameters for the second trigger to be used to monitor the water level during delivery:
 
- Select the second trigger field and press OK key.
- Select if an action has to occur when the water level is above or below the corresponding trigger level.
- Select the Above option from the pulldown list and press the OK key.
- Enter a trigger threshold of 30 and press the OK key.
- Select the delivery action to be taken when the trigger occurs. Select the End option from the pulldown list and press the OK key.
- Select the Digital Output of the I/O board to be used with the trigger. The output should be the same as the one selected for the first trigger.

 

n.If desired, select and configure another trigger. Up to 4 different triggers can be configured for the Analog Input of the I/O board.

o.Complete the Analog Input Setup by pressing the Close hot key.