Instruction manual

ManualsBrandsEmerson ManualsConsumer electronicsSolu Comp Xmt-P-FF/FI

MODEL XMT-A-FF/FI SECTION 11.0

CALIBRATION - TOTAL CHLORINE

9. This screen appears if the zero current is moderately high. To continue,

choose Yes. To repeat the zero step, choose No. See Section 15 for

troubleshooting.

10. If the sensor was just zeroed, place the reagent uptake tube back in the

reagent bottle. Once the flow of reagent starts, it takes about one

minute for the sensor current to begin to increase. It may take an hour

or longer for the reading to stabilize. Be sure the sample flow stays

between 80 and 100 mL/min and the pressure is between 3 and 5 psig.

11. Adjust the chlorine concentration until it is near the upper end of the lin-

ear range, point C1 in Figure 11-2. Wait until the transmitter reading is

stable before starting the calibration.

12. Choose pt1.

13. The screen at left appears for two seconds.

14. The screen at left appears. The number in the first line is the concen-

tration of chlorine based on the previous calibration. Wait until the read-

ing is stable, then press ENTER.

15. The screen at left appears. Take a grab sample of the process liquid

and immediately press ENTER. The transmitter will store the present

sensor current and temperature and use those values in the calibration.

16. Immediately determine the total chlorine concentration in the sample.

17. Use the arrow keys to change the value in the second line to match the

results of the laboratory test.

18. This screen appears momentarily if the sensitivity (sensor current divid-

ed by concentration) is much higher or lower than expected. The dis-

play then returns to the screen in step 5. See Section 15 for trou-

bleshooting.

19. Adjust the concentration of chlorine in the sample until it is near the

upper end of the control range (point C2 in Figure 10.2)

20. Choose pt2 and repeat steps 13-17 above.

21. To return to the main display press MENU then EXIT.

Possible ZeroErr

Proceed? Yes

Cal?

Zero pt1

pt2

Cal?

Zero pt1 pt2

Wait for

Stable reading.

Stable? 6.00ppm

Press enter.

Take sample;

Press enter.

Sample 6.00ppm

Cal

.00ppm

Calibration

Error