FCI MT86 - Check Procedure for Flow Meter Displays with Zero and Non-Zero Based Calibration; Table 9 - Totalizer Decimal Point Position

TROUBLESHOOTING MT86/MT86HT Flow Meter
30 Fluid Components International LLC
Table 9 – Totalizer Decimal Point Position
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 million “XXX”
Note: "XXX" is the Mass or Volume unit used in the Rate Display.
Check Procedure for Flow Meter Displays with Zero and Non-Zero Based Calibration
See the discussion on zero and non-zero based calibration in Operation, page x.
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.
6. Return switch SW4 to the OP (OPerate) position.
If additional technical assistance is needed, contact the customer service department at 1 (800) 854-1993.
Repair
There are no field-repairable items at the component level other than fuses.
Note:
Any unauthorized repairs that are done at the component level will void the warranty.
Contact the authorized FCI field representative (see the list of regional territories and the respective agents) or the factory (see the
telephone and FAX numbers in APPENDIX C, page 41, of this manual) to determine the best course of action.
EPROM Replacement Procedure
1. Turn the operating power OFF.
Caution:
EPROMS are Electro-static Sensitive Devices (ESD). Use approved ESD procedures.
2. On the control board, remove the original EPROM from its socket (U14).
3. Store the original EPROM on Electro-Static safe foam or in an Electro-Static safe bag for possible future use.
4. Do not remove the new EPROM from its chip carrier. Install the chip carrier and EPROM as a single unit into the control board. The
serial number on the new EPROM MUST match the serial number on the control board.
5. Verify the following switch positions on the control board:
SW1-1 open
SW1-2 open
SW1-3 open
SW1-4 open if temp. comp. is used., closed if temp. comp. not used
SW2 set on the position that corresponds to the maximum number of sensing points
SW4 OP (OPerate) position