Liquid Controls T650N SERIES User Manual

Page 6

Sponsler, Inc.

T650N Series Cryogenic Truck Totalizer

DOC# MN-650

Bar Graph -

10 position LED; activated while S9 (system test) is depressed to indicate status of specific functions
of the T650N circuitry.

D1 -

normally illuminated; extinguished if either the pickup coil or the signal cable shorts.

D2 -

normally illuminated; extinguished if either the pickup coil or the signal cable opens.

D3 -

illuminated if S2 is in “0” position; extinguished if S2 is in “1” position.

D4 -

normally flashing; nonflashing if mechanical counter output signal is absent.

D5 -

normally flashing; nonflashing if factoring board output signal is absent.

D6 -

normally flashing; nonflashing if display board oscillator is not functioning.

D7 -

normally flashing; nonflashing if system test oscillator is not functioning.

D8 -

normally illuminated; extinguished if 12 volts is absent.

D9 -

normally illuminated; extinguished if 5 volts on factoring board is absent.

D10 - normally illuminated; extinguished if 5 volts on display board is absent.

D11 - Power indicator, LED; illuminated if switched fused input power is present.

D12 - TC Range Alarm, LED; illuminated if temperature compensation is incorporated and temperature for

the selected product is out of range.

J5 -

Jumper: installed if external manual reset is incorporated.

J6 -

Jumper: installed if power on reset is incorporated.

CALIBRATION

Sensitivity

The Sensitivity adjust (R1) should be adjusted at the lowest expected flow rate. Turn R1 completely counterclockwise;
slowly adjust R1 clockwise until the display increments; then increase R1 slightly clockwise again. In the normal R1
position, the arrow indicator will be in the 11 o’clock position.

Calibration Factor

The Calibration Factor is derived by taking the reciprocal of the meter’s “K-Factor” (pulses per gallon or other
engineering unit).

C.F. =

Engineering Units

K-Factor

It is desired that zero not be dialed as the first digit on the factor switches. The CF, in most cases, will start with at
least one zero. The divider switch (S7) on the factoring board will allow dividing by 1, 10, 100, 1000, or 10000 to move
the decimal the required digits.