TB 1-4920-443-35
19. Calculating Counter Test
a. Performance Check (Self Test Procedure)
(1) Set the TI CALCULATING COUNTER controls as follows:
Table 19-1 TI Calculating Counter Controls
All DEC switches to
6
All C switches to
11111
All AUTO buttons
depressed
CHANNEL ( 1 ) button
depressed
REMOTE button
depressed
SAMPLE RATE (FAST) button depressed
All x10 buttons
released
TEST button
depressed
POWER button
depressed
(2)
Verify that the TI indicator indication is 011111.
(3)
Depress the TI CH1 x10 selector in. Verify that TI reads 111110. Depress the TI CH1 x10 out.
(4)
Repeat steps 2 & 3 for the remaining CH1 switch settings of 22222 through 99999, and 00000.
(5)
Repeat steps 1 through 4 for the remaining TI indicator Channels CH2 through CH4. Depress the TI
indicator TEST selector out.
20. Flow Measurement System
a. Performance Check
(1) Alignment of Turbine Flowmeters
(2) FEDS flowmeters must be calibrated by a qualified laboratory, following a prescribed calibration
schedule of twelve (12) months. Before Aligning the flow system, verify that current calibration sheets
are available for each installed flowmeter. If not, replace it with a currently calibrated flowmeter.
(3) Digital Flow Rate Indicator (Calculating Counter) "C" Factor Settings
formula to determine the Calculating Counter's "C" factor setting in pounds per hour (lb/hr or
PPH):
CH x C =
(3600 x 8.337 x specific gravity)
Turbine flowmeter K-factor
where:
3600 = number of seconds in one hour
8.337 = weight in pounds of one gallon of H2O at 60 F
specific gravity = specific gravity of fluid in flowmeter
(b) The calculated value "C" will be entered in the Calculating Counter's CHx C thumb switches, in
the five switch positions marked "C".
(c) For each installed flowmeter, calculate the "C" factor, using the specific gravity and K-factor
shown on the flowmeter calibration sheet.
Table 20-2 Flowmeter Calibration Data with "C" Factors for Calculating Counter
Flowmeter
Flowmeter Flowmeter Current
Mean
Sampling Specific
"C"
TI
Serial No.
Cal. Date
Cal?
K-
Temp (F) Gravity Factor
Channel
(y/n)
Factor
T700 Fuel
CH 4
T53/T55/T64
CH 4
Fuel
T53/T63 Oil
CH 3
