Ametek Atmospheric Consistometer 1200

Warning: This maintenance check requires trained personnel with PPE!

Potentiometer Mechanism calibrated?

Temperature Controller and Thermocouple Calibration

Temperature Controller calibrated by Qualified Factory Service Technician?

Thermocouple calibrated by Qualified Factory Service Technician?

Sign off on the Atmospheric Consistometer Maintenance

Tools Required: Adjustable wrench, Phillips screwdriver

Cleaning and Service Tips: The slurry cup rotators are moved on fluorocarbon polymer bearings that have low friction resistance and require only occasional lubrication. It is recommended that the rotators be examined periodically and lubricated with light lubricating oil.

Remove back protective cover plate

Loosen bolts on motor mounting bracket

Remove belt from motor timing sprocket

Remove the ten (10) outer screws on the deck cover, remove the entire assembly from the water bath, and set it on blocks to prevent damage to the rotators

Disassemble, clean and inspect Slurry Cup

Clean and inspect Potentiometer Mechanism

Sign off on the daily maintenance

Before calibration and operation of the instrument, the paddle should be tested for excessive friction by running the slurry container without cement inside. If the paddle is bent so that it rubs on the side, appreciable movement will be shown on the indicator. The bearings in the slurry-indicating lid should be checked for excessive friction. Any abnormality should be corrected before proceeding with the instrument calibration.

Calibration and operation of the instrument is described in API Spec 10. This instrument is equipped with a calibrating spring and can be calibrated using the calibration device and adapter. The adapter is placed with screws on the right-rear side of the calibration device, and the ring rests on top of the lid. The roller located on the right-front side of the calibration device is raised to a position so that the cord is level with the lid.

Refer to Figure 5 for the following:

1. Place the container lid on the calibration assembly.

2. Place the adapter ring on the container lid assembly.

3. Place the cord counterclockwise around the lid and attach 300 grams of weight.

4. Pull the weight down slightly and release a few times to obtain an average reading. The indicator should read “7.5” (75 Bc ± 5 Bc).

5. Corrections can be made by turning the small set screw to loosen the spring clamp inside the lid.