Saint Hill Manor, East Grinstead, Sussex HCO BULLETIN OF 11 MAY 1969R REVISED 8 JULY 1978 (Replaces HCOB of 27 July 1966 same name) | Saint Hill Manor, East Grinstead, Sussex HCO BULLETIN OF 11 MAY 1969R REVISED 8 JULY 1978 (Replaces HCOB of 27 July 1966 same name) |
(Qual Div) | (Qual Div) |
METER TRIM CHECK | METER TRIM CHECK |
E-Meters can go out of trim during a session because of temperature changes. | E-Meters can go out of trim during a session because of temperature changes. |
Thus even if the meter is properly calibrated and reads at 2.0 with a 5,000 ohm resistor across the leads and 3.0 with 12,500 ohms by the end of the session a pc can be apparently reading below 2.0 because the meter is off trim. | Thus even if the meter is properly calibrated and reads at 2.0 with a 5,000 ohm resistor across the leads and 3.0 with 12,500 ohms by the end of the session a pc can be apparently reading below 2.0 because the meter is off trim. |
The following meter procedure is therefore to be followed AT THE END OF EACH SESSION (AFTER GIVING “END OF SESSION.”): | The following meter procedure is therefore to be followed AT THE END OF EACH SESSION (AFTER GIVING “END OF SESSION.”): |
|
|
“Trim check - TA = ....” | “Trim check - TA = ....” |
Founder | Founder |