Figure 2-7. Kinematic ViscosityBaths

TM 5-6640-212-14

(2) Adjust the thermoregulator by turning the collar

(5) Place a suitable thermometer in the thermometer

until the pointer reaches the desired temperature.

well.

(6) Place the line switch in the ON position. Place

the heater switch in the HIGH position to bring bath

NOTE

quickly to desired temperature. When the pilot light

The

calibrations

the

extinguishes, the bath has reached the temperature set

thermoregulator should be used for

on the thermoregulator.

reference only, with the actual setting

(7) Allow the apparatus to stabilize and reach

being made according to temperature

temperature equilibrium.

read from a calibrated thermometer of

(8) Check the controlling temperature against the

the proper range placed in the bath.

temperature reading of the thermometer. Make final

temperature adjustments by turning the adjustment collar

(3) Carefully slip the thermoregulator down in to the

on the thermoregulator.

protective guard and screw firmly in place.

(9) Turn the heater switch to the desired position.

(4) Place the bayonet-type connector leading from

(10) To shut off the apparatus, place the line switch

the base of the unit over the top of the controller. To

in the OFF position.

engage, push down and turn clockwise.

(11) For detailed description of test procedures,

consult ASTM Method D445 (TM 10-1166).

CAUTION

Do not operate the beaters unless

they are immersed in liquid.

2-15