TB 9-6670-258-35
(2) Set LOAD INDICATOR-BATTERY CHECK switch to LOAD
INDICATOR position.
(3) Set CELL SELECTOR switch to CELL1.
(4) Set POUNDS thumbwheels to 0000.
(5) Adjust ZERO SET control for null indication on TI.
NOTE
BATTERY CHECK position of the LOAD INDICATOR-
BATTERY CHECK switch is used only when TI is connected
to a 24 V dc source. The null meter must indicate within green
area on scale (22 to 28 V dc) for proper operation.
NOTE
When using battery power operation, assure correct voltage is
maintained. Unless correct voltage is maintained, improper
indications may result.
a. Performance Check
(1) Setup equipment as shown in figure 1 using load cell No. 1 and TI cell No. 1.
(2) Connect cable to appropriate connectors on load cell No. 1 and load cell indicator.
(3) Connect load cell indicator to a 115 V ac power source. Energize all equipment
and allow unit to warm-up for 15 minutes.
(4) Set CELL SELECTOR switch to CELL 1 position and verify a null indication.
(5) Exercise load cell No. 1 and TI cell as described in (a) through (f) below:
(a) Set POUNDS thumbwheel to 2000 (15,000 pounds, using load cell No. 3).
(b) Apply force slowly to load cell and TI cell to obtain approximately 2000
pounds (15,000 pounds, using load cell No. 3).
(c) Release force to obtain a zero indication on indicators.
(d) Repeat (a) and (b) above two more times.
(e) Set POUNDS thumbwheel to 0000 and verify that TI indicator indicates 0.
(f) Readjust load cell indicator BRIDGE-ZERO, if necessary, to obtain a
reading of 0000.
(6) Rotate the POUNDS thumbwheel to obtain an indication of 200.
(7) Apply force from hydraulic force H frame for null indication on TI NULL meter.
If load cell indicator does not indicate between 175 and 225, proceed to (9) below.