Cooper Instruments & Systems LTL 730 Wireless Tension Link Load Cell - Manual (Page 16)

CF 150 LTL 730 13 12/08
2. Select a display mode value using the Sel key to scroll through the choices. Press Enter to accept the
displayed setting.
The display returns to the first soft key set of the Configuration menu.
Config Units
The next soft key is Units. Use this item to set the units of measure you want available when you use the Units
key in the normal operating mode. This can also assign custom units.
Custom units are typically used for any of three purposes:
1. To display a unit of measure not found in the standard options, such as ton, tonne, dyne, or KIP.
2. To apply a multiplier when multipart line systems or other static line arrangements are used. For example, if
a 4-part line is used, the dynamometer at the dead end can display approximate total weight by using a
multiplier of 4.
It is critical that the operator understands the relationship between the dynamometer and custom unit. For
example, assume a custom unit of kg is entered where 1 kg = 5 kgf (as seen at the dynamometer). The
operator could become confused, and think that a 1000 kg display means that there is still 4000 kg of
capacity remaining.
3. To compensate for local gravitational differences. There are variances in gravity throughout the world. If
used as a scale, variances due to gravitational differences can be handled by having the instrument
calibrated on-site with certified dead weights or by using the custom units. Simply divide the gravitational
constant at your location by 9.80665 m/s
s
(or 32.1741 ft/s
2
) and use this as the multiplier entry. A less
accurate alternative: If the constant is not known, lift a weight of known mass close to the capacity of the
instrument. In enhanced resolution mode, observe the reading. Divide the actual by the observed reading
and use this as the multiplier entry.
Config Power
The next soft key is the Power key. Use this to set power management features.
Powering the instrument off regularly allows the batteries to partially recover and maximizes energy extractions
from the batteries.
Key presses reset the timer. Characters received through the serial port also reset the timer.
1. Press the Power key. The following is displayed:
Auto-Shutdown powers off the instrument automatically. The instrument can be programmed for a fixed
operating time or programmed to shut down after a period of inactivity.
Timer reflects the period required to pass before Auto-Shutdown activates.