NCI 6712 Manuale utente
User’s Manual
Model
6712
Point-of-Sale
Interface Scale
Model 6712 Point-of-Sale Interface Scale User’s Manual
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CAUTION
Risk of electrical shock. Do not remove cover.
No user serviceable parts inside. Refer servicing to
qualified service personnel.
Weigh-Tronix reserves the right to change
specifications at any time.
01/30/03 6712_U.P65 PN 7424-17307A
Model 6712 Point-of-Sale Interface Scale User’s Manual 3
Table of Contents
Description -------------------------------------------------- 4
Specifications ----------------------------------------------- 4
Initial Setup -------------------------------------------------- 7
Operation ---------------------------------------------------- 8
Entering Setup Mode ------------------------------------- 9
Diagnostics Mode ----------------------------------------- 9
Configuration Mode -------------------------------------- 12
Calibration Mode ------------------------------------------ 14
Review/Test Scale Settings---------------------------- 17
Error Codes ------------------------------------------------ 18
Communication ------------------------------------------- 18
Troubleshooting ------------------------------------------- 20
Spare Parts Listing --------------------------------------- 22
Model 6712 Point-of-Sale Interface Scale User’s Manual
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Model Capacity (lb) Capacity (kg) Capacity (oz) n(max)
6712-7 15 x 0.01 lb 7 x 0.005 kg 160 x 0.1 1600
United States: NTEP #00-096. For use as a
Class III Device from +5º to +40ºC.
If unit is to be used as a commercial device, all
local reporting and registration requirements
must be followed.
10.4"L x 10.4"W x 2.5"H
UL/CSA approved. Wallmount power supply with
6’ cord.
INPUT: 120 VAC + 10%-15%, Standard 3 wire w/
ground
OUTPUT: 15VDC @ .3 Amps DC
60 Hz Standard
0.1 amp maximum
40° to 104°F (+5º to +40ºC)
10% to 90% RH (noncondensing)
Description
The NCI 6712 model is a digital electronic bench
scale specifically designed for point-of-sale
applications and are “Legal-for-Trade.” The scale
is easily interfaced with a cash register, computer
or other POS terminal.
Specifications
Capacity/Resolution
Power Supply
Dimensions
Agency Approvals
Operating Temperature
Frequency
Power Requirements
Model 6712 Point-of-Sale Interface Scale User’s Manual 5
Over Capacity Limits
Scale Leveling
Aluminum Base and Load Bridge with stainless
steel weigh platter.
Overload protection: Adjustable center and side
stops.
½" high, six-digit LCD.
Key panel with ZERO and TEST keys.
Remote display with 7 ft. cable.
Using the leveling bubble as a guide, adjust the
four adjustable feet to level the scale.
Initial automatic zero setting is ±10% of maxi-
mum capacity—active at power up. Manual zero
setting range is ±2% of maximum capacity—
active using the ZERO key.
Under capacity indication will be given with
dashes appearing on the bottom line of the
display whenever the display is more than 2
percent below the initial zero value.
Over capacity indication will be given with dashes
appearing on the top line of the display whenever
the weighed item exceeds 9 divisions over the
rated capacity of the unit. The scale will use the
initial zero value for reference for over capacity
determination.
Access to the calibration switch can be secured
with a lead-wire or pressure sensitive security
seal. The remote and primary indicators have no
metrological features that require the use of a
security seal.
The scale has 65,000 internal counts.
Sealing
Internal Counts
Construction
Under Capacity Limits
Display
Zero Window
Model 6712 Point-of-Sale Interface Scale User’s Manual
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Communications
Dynamic Response The time from when weight is applied to the scale
to the time when stable weight is displayed:
0-1000d, 1.5 seconds
maximum mean average
1000d+, 2 seconds
maximum mean average
Factory default settings: 9600 baud, 8 data bits,
no parity, 1 stop bit.
Standard 9-pin pass through RS-232 interface
cable included. Not a null modem.
RS-232 bidirectional, configurable 2400, 4800 or
9600 baud. Transmits weight and scale status
whenever ASCII “W”<CR> is sent by a remote
device. Supports NCI Standard protocol only.
Model 6712 Point-of-Sale Interface Scale User’s Manual 7
Check container for any obvious evidence of
damage. Inspect the unit for shipping damage.
Immediately report any damage to the shipper.
1. Mount the unit on a stable, level surface that
is free from air currents and vibration. Be
sure the weigh platter does not touch any
adjacent surfaces.
2. To install the weigh platter flush with a
countertop, use the dimensions below to
guide your construction.
Scale Minimum Cutout
Dimensions Dimensions
W 10.4 in. (26.4 cm) W 11.1 in. (28.2 cm)
D 10.4 in. (26.4 cm) D 11.1 in. (28.2 cm)
H 2.5 in. (6.35 cm)*
*Adjustable to 3.0 in. (7.6 cm)
3. Loosen the jam nuts on the leveling feet.
Level the unit by using the level bubble under
the platter as a guide. Be sure all four feet
are in firm contact with the counter, then
tighten all jam nuts.
4. Make sure the power cord, display cable, etc.
are connected properly and are not touching
the live weighing surface.
5. Plug the unit into an appropriate voltage
outlet, properly grounded.
Initial Setup
Installing the Scale
Unpacking the Scale
Model 6712 Point-of-Sale Interface Scale User’s Manual
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After the NCI Model 6712 is properly installed
and power is applied, the display will perform a
countdown test to insure all display segments are
functional.
After this test is completed, the display should
show zero (0.0).
If the display indicates a slightly “off” zero condi-
tion (either a number in the display or dashes at
the bottom of the display), press the ZERO key.
When the display shows 0.0, it is ready to weigh.
Place item or parcel on the weigh platter and the
weight will be displayed. This information can be
transmitted when requested by a remote device.
Operation
Operating Instructions
6712 Remote Display
Model 6712 Point-of-Sale Interface Scale User’s Manual 9
Entering Setup Mode
Access the MENU Mode by pressing switch 1
shown in Figure 1.
In the Menu Mode, there are three modes
available. They are as follows:
Diagnostic Mode (DIAG) – Used to test areas of
the scale’s function.
Configuration Mode (CONF) – Used to config-
ure the scale for your application.
Calibration Mode (CAL) – Used when calibrat-
ing the scale.
The structure for these menus is shown in Figure
2. Following that are the step-by-step instructions
for accessing the items within each menu.
Accessing the
Menu Mode
Figure 1
Switch Diagram
Diagnostics Mode
Diagnostic DIAG Mode The diagnostic (DIAG) mode menu lets you test
specific areas of the unit’s function. These areas
are:
Display (DISP) – Shows the version and revision
of the software, followed by a display segment
test.
Bottom view
Model 6712 Point-of-Sale Interface Scale User’s Manual
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Figure 2
Menu Structure
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