MFFT datasheet(4/4 Pages) ETC

4 / 4 page

OPERATION

In practice the instrument is switched on

and the programme chosen, air and water

having been connected. An equilibrium con-

dition is noted after about 20 minutes (the

time may be less dependant on the pro-

gramme chosen). At equilibrium the heat-

ing cooling lamps illuminate at very low fre-

quency. Several tracks are laid down in quick

succession using an applicator, normally a

75 micron (3 mil.) cube applicator.The tracks

may be laid down left to right or right to left,

but the most common form is a U horizon-

tal, with the track starting and finishing at

Alarm and ON Module

1 Mains switch -On/ Off

2 Coolant failure alarm

3 Coolant failure lamp

4 Heating lamp indicator

5 Cooling lamp indicator

the right, warm end. Two tracks are nor-

mally laid down last as a control, using an

emulsion of known MFFT.

A clearly defined limit of coalescence will

show in about 80 minutes and the cursor

may then be used to read off the MFFT

temperature. Pigmented emulsions may be

tested but the determination is more diffi-

cult to see. Most operators, however, find

that they can readily discern the determi-

nation temperature. This can be proven by

gently scraping the surface of the film us-

ing a wooden spatula.

Indication

Module

6 Temp. display

7 Probe socket

8 Temp. mode switch

9 Temp. sensor selector

The air conditioning and control unit, showing the air

connection

Control Module

10 Heating LED

11 Cooling LED

12 Programme selector

RHOPOINT

INSTRUMENTATION LTD

RHOPOINT INSTRUMENTATION LTD

Beeching Road, Bexhill-on-sea

East Sussex,TN39 3LG

email: instrumentation@rhopoint,co,uk

Shipping Details

Carton dimensions.. 29” x 18.5” x 26”

737mm x 470mm x 661mm

Gross Weight.......... 106lb, 48kg

The roving probe

The MFFT Bar is manufactured under licence to I.C.I.plc

75 micron

ring applicator

75 micron

cube applicator

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