OHAUS Navigator NV1101, Service Manual

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CHAPTER 1 GETTING STARTED
Navigator Series Service Manual 13 Ohaus Corporation www.ohaus.com
If the scale is set for LFT (Legal for Trade
– EC / OIML “M” or NTEP / MC “N” models),
LFT
flashes briefly after the software revision number and before a countdown which allows for the
scale electronics to stabilize.
Allow time for the scale to stabilize after moving it from an area which is at a different temperature
than the area where it is to be operated. Allow one hour for each 5°F (2.7°C) temperature change
before using the scale. After temperature stabilization, allow an additional 20 minutes after turning
the scale on, for the scale electronics to stabilize.
When the scale is turned on, the last mode and unit will be active.
1.6.4 Power Off
To turn the scale OFF, press and hold Zero/ until the display indicates OFF , then release.
1.6.5 Menu Setup
Programmable features of the Navigator scales are contained in menus which are accessed
through the Display Panel’s control switches. The Menu Structure is described in Section 1.8.
(For more detail on using the menus, see the Instruction Manual.)
Note: The Menu Lock switch limits changes to the Cal, Setup, Mode and Unit menus. The switch
in type approved models may set some balance settings as required by the approval agency. To
gain access to these submenus, see the next section.
1.7 LEGAL FOR TRADE (LFT)
When the scale is set for LFT (on
“M” and “N” models), the following menu settings cannot be
accessed / changed: Calibration, Mode and Units. The switch in type approved models may set
some balance settings as required by the approval agency.
In non-approved models the Menu lock
switch will also limit access to certain menu items. The Service Menu (see section 1.8.2) is not
available when the switch is “on”.
To regain access to the locked menu settings, move the Menu lock switch to the left (away from the
middle), which turns LFT off.
Figure 1-4 Menu Lock Switch
Locked Unlocked
After the Menu Lock setting has been turned off, the scale must be inspected in accordance with
local weights and measures regulations before it can be used in LFT mode again. Local authorities
may secure the switch using paper seals, wire seals or plastic ties.
Note
: “M” and “M” models- When the Menu Lock switch is set to “on” certain menu items will be
forced to the required setting and the required menus will be locked.
LFT SETUP PROCEDURE
1. Set the Geographical Adjustment Factor (GEO) according to the current location. (See
Appendix D. Possible values are from 1 to 31.) The setting is in the Service Menu: press
ZERO and Tare
simultaneously during power on, hold until “Ramp” is seen. Press
No three
times until GEO appears, then press Yes . Then continuously press No until the desired