Fluid Components International MT86_MT86HT Manual Troubleshooting User Manual
Page 12
FLUID COMPONENTS INTL
CHAPTER 5 - TROUBLESHOOTING
Models MT86, MT86HT
5 - 12
Doc. No. 003162 Rev. F
RATE
SEC
MIN
HR
DAY
6
2
3
5
6
5
1
2
4
5
4
3*
1
3
4
3
2*
3*
2
3
2
1*
2*
1
2
1
3**
1*
3*
1
* Use label reading thousand "XXX"
** Use label reading milliion "XXX"
Check Procedure for Totalizer and Rate Display
Note:
Setting the rate display automatically sets the totalizer.
1.
Remove the rate totalizer circuit board from it's mounting position in the cabinet door.
2.
Connect the ribbon cable from connector P6 on the MT86 control board to connector P1 on the rate totalizer.
3.
Turn the operating power ON.
4.
Examine the full scale value of the measured units to be displayed. Set the decimal point on the display to use
the highest resolution available (use as many digits as possible).
Note:
The Liquid Crystal Display (LCD) shows six places, however, the right two zeros of the LCD are
dummy zeros that make easier decimal point placement.
5.
Select the rate decimal point by installing a jumper to give the decimal point. With the jumper in position
number one (far right), there is no decimal displayed.
6.
Set the period jumper for the period of the rate being displayed; SEC, MIN, HR, or DAY.
7.
Refer to Table 5-7 for the correct position of the totalizer decimal point.
Table 5-7. Totalizer Decimal Point Position
Note:
"XXX" is the Mass or Volume unit used in the Rate Display.
Check Procedure for Flowmeter Displays with Zero and Non-Zero Based
Calibration
See the discussion on zero and non-zero based calibration in Chapter 3 - Operation.
1.
Install jumpers in positions J1 and J4.
2.
Place switch SW4 in the CAL (CALibrate) position and adjust the cal potentiometer, R23 to full scale output; 10
Vdc, 20 mA, etc,.
3.
Adjust the span potentiometer (R16) to give a displayed value of full scale.
4.
Adjust R23 to 0 Vdc or 4 mA.
5.
Adjust the zero potentiometer (R17) to give a displayed value of the low limit.