Ohaus CD-33 Indicator - Manual (Page 22)

22
CD Indicators
3.7 Legal for Trade (LFT)
Legal for Trade (LFT) is a software controlled option which can be set to LFT LOCK. When LFT LOCK is set ON,
certain items in the Calibration, Readout, Print, Mode and Units menus are automatically preset and locked. This is
done to permit the Indicator to operate in a legal for trade application and works in conjunction with a Lock Switch
(jumper). Default setting is UNLOCKED, which limits display resolution to 1:10,000. See default table.
LFT and Lock Switch Menu lock Available Settings
Scale Menu
Zero
Locked 2%
Calibration Unit Locked lb or kg
Grad Locked 1:10,000 max.
Full Scale Locked ON
Lock Locked ON
Calibration Menu
Span, Linearity, User
Locked
CalTest Unlocked
Readout Menu
Stability
Unlocked .5d (limited to .5d and 1d)
Auto zero Unlocked .5d (limited to OFF and .5d)
Filter Level Unlocked -1-
GMP Data Menu Unlocked
GMP Selections Unlocked
Print Options Unlocked
RS232 Menu Unlocked
LFT Menu Lockswitch Locked
Mode menu Locked Weigh
Units Menu Locked Cal unit*
Global Menu Locked
Custom Menu Unlocked
If Print Numeric Data is turned ON, then Print Stable Data Only is
locked ON.
* Any unit which was enabled may be selected as a weigh-
ing unit. Default is the calibration unit. Custom unit is
disabled in LFT and can not be selected as a weighing unit.
DEFAULT TABLE
Procedure
When LFTLOCK is set to ON, None of the settings in the
menus which are listed as Locked in the default table can
be altered.
The settings in the menus which are listed as Unlocked in
the default table may be altered if: A) The Lockswitch
jumper is on (Lockswitch disabled) or B) The Lockswitch
jumper is off (Lockswitch enabled) and the Menulock is off.
When LFTLOCK is set OFF:
The settings of all menus may be altered if: A) The
Lockswitch jumper is on (Lockswitch disabled); or B) The
Lockswitch jumper is off (Lockswitch enabled) and the
Menulock is off.
• Press the Setup button, SCALE is displayed.
• Press button repeately until LFT is displayed.
• Press Enter button, LFT LOCK is displayed.
• Press Enter button.
• Press or button and select either ON or OFF.
• Press Enter button, SAVED is momentarily displayed,
then EXIT is displayed.
• Press Enter button, Indicator returns to weigh mode.
NOTE: For legal for trade applications, the indicator must
be physically sealed. Refer to section on LFT Sealing.
When the Indicator is first turned ON and LFT has been
previously set ON, the following display will appear if LFT
is set in the menu and the Lock Switch is set ON.
When the Indicator is first turned ON and LFT has been
previously set ON, the following display will appear if LFT
is set in the menu and Calibration menu is locked, and
the Lock Switch is enabled (jumper off).
CAL SAFE message appears when Lock Switch is
enabled (jumper off) and Calibration menu lock is ON.