TM 5-3895-374-10
Item
Procedure
2
Install load cell assembly (stored in control van) onto the location provided on the tank support
structure. Plug load cell cable CBLO13 into plug J13 on control van plug box.
3
Remove transport chains retaining the calibration tank so that it is supported by the load cell and
clear of the support structure.
4
Install 2 inch asphalt line (stored in the basket on the drum mixer) between calibration tank
connection and the quick coupler at the metering pump.
5
To calibrate tank, open manual square head plug valve to calibration. Close square head plug
valve to drum mixer.
6
Feeder panel select DIVERT on Divert valve. Select MANUAL on Asphalt Metering Pump.
Select FORWARD on Asphalt Metering Pump. Adjust speed to 50% on Asphalt Meter. Confirm
approximate asphalt flow rate of 5.5 tons per hour.
7
Open feeder panel lower door to expose calibration scale panel mounted on inside of door.
(See figure 2-37).
8
Press on/off button. Scale should read identification DF2000 and display a numerical value.
9
Press zero and scale will automatically zero. (See Maintenance manual for more information).
10
Suspend known weight to the calibration tank (one on each side of calibration tank frame).
11
Verify scale digital display reads accurately the known weight (within + or one pound). If scale
does not read accurately proceed to set new span.
12
Calculate and compare sample weight with computer test weight. If in error, on keyboard, select
error calculator (8), enter requested values as prompted. Record results on calibration sheet.
Select correct totals (9), enter calibrated weight from calibration sheet. Press ESCAPE.
13
Press 13, press select, display flashes 1 and returns to original weight reading, enter the correct
(known) weight and press enter.
14
Remove calibration known weight.
15
Check zero. Re-zero if necessary.
16
Re-apply weight. Repeat steps 11 through 14. Repeat as often as necessary.
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