NCI 6720 Manuale utente
User’s Manual
Model
6700
Family
Model 6720
Model 6702
Model 6710
Point-of-Sale
Interface Scales
Model 6700 Family User’s Manual
2
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.
CAUTION
03/12/02 6700_U.P65 PN 7424-14787E e1 Printed in USA
Model 6700 Family User’s Manual 3
Specifications ...................................................... 4
Initial Setup ......................................................... 7
Operation ............................................................ 8
Menu Structure.................................................. 11
Diagnostics Mode.............................................. 13
Configuration Mode........................................... 17
Calibration Mode ............................................... 19
Review/Test Scale Settings............................... 21
Communication ................................................. 22
Error Codes....................................................... 24
Troubleshooting................................................. 25
Spare Parts Listing ............................................ 27
Table of Contents
Model 6700 Family User’s Manual
4
Specifications
Description
Capacity/Resolution
Agency Certificates
of Conformance
The NCI 6700 models are digital electronic bench
scales specifically designed for point-of-sale
applications and are “Legal-for-Trade.” The
scales are easily interfaced with a cash register,
computer or other POS terminal.
Important! Weights and Measures normally
requires inspection of scale before scale is
placed into operation.
Model Capacity (lb) Capacity (kg)
6702-7 15 x .005 7 x .002
6702-15 30 x .01 15 x .005
6710-7 15 x .005 7 x .002
6710-15 30 x .01 15 x .005
6720-7 15 x .005 7 x .002
6720-15 30 x .01 15 x .005
6720-30 60 x .02 30 x .01
6720-60 120 x .05 60 x .02
4740-15 30 x .01 15 x .005
Model 6702/6710/6720
US and Canada Approved Legal for Trade
USA: NTEP COC# 95-070
Canada: MOI# AM-5076
Model 4740
US and Canada Approved Legal for Trade
USA: NTEP COC# 92-151
Canada: MOI# AM-4778
Model 6700 Family User’s Manual 5
Model 6702: 10.4 x 6.4 x 2.5
Model 6710: 10.4 x 10.4 x 2.5
Model 6720: 14.1 x 12.6 x 4.1
Model 4740: 14.0 x 10.0
UL/CSA approved power supply with 6’ line cord
6702/6710: Wallmount
6720: In-line mounted below scale
Input: 120 VAC +10%-15%, Standard 3 wire
w/ground
Output: 15 VDC @.3 Amps DC
50/60 Hz selectable
0.1 amp maximum
42ºF – 104ºF (5ºC – 40ºC)
10% to 95% RH (non-condensing)
Models 6702/6710: Aluminum Base and Load
Bridge with stainless steel weigh platter.
Overload protection: Adjustable center and side
stops.
Model 6720: Die cast aluminum base with a
stainless steel weigh platter.
Overload protection: Adjustable center stop, fixed
corner stops.
½" high, six-digit LCD.
Key panel with ZERO and TEST keys.
Remote display with 7 ft. cable. Standard on
Models 6702 and 6710, optional on 6720.
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.
Dimensions
Power Supply
Frequency
Power Requirements
Operating Temperature
Construction
Display
Scale Leveling
Zero Window
Model 6700 Family User’s Manual
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Under Capacity Limits
Over Capacity Limits
Sealing
Internal Counts
Dynamic Response
Communications
Under capacity indication will be given with
dashes appearing on the bottom line of the
display whenever the display is below the initial
zero value.
Over capacity indication will be given with dashes
appearing in the upper line of the display when-
ever 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
capacitydetermination.
Access to the calibration switch can be secured
with a lead wire or pressure sensitive security
seal. The remote or primary indicators have no
metrological features that require the use of a
security seal.
The scale has 100,000 internal counts.
The time interval when weight is applied to the
scale until a stable weight is displayed:
0–1000d,1.5 seconds
1000d+, 2.0 seconds
maximum mean average
Factory default settings: 9600 baud, 7 data bits,
even parity, 1 stop bit.
Specific cable requirements are determined by
particular POS terminal. A standard 9-pin pass
through RS-232 interface cable is necessary for
most PC interfaces. Not a null modem.
RS-232 bidirectional, configurable 1200 to 19.2K
baud. Transmits weight and scale status when-
ever ASCII “W” <CR> is sent by the POS termi-
nal. Standard ECR protocol is OPOS compatible.
For Protocol details contact factory.
Model 6700 Family User’s Manual 7
Initial Setup
1. Remove contents of the shipping container.
2. Inspect the scale for evidence of shipping
damage. Immediately report any damage to
the shipper.
1. Mount the scale on a stable, level surface
that is free from air currents and vibration. Be
sure the scale platter does not touch any
adjacent surfaces.
2. To install the scale surface flush with a
countertop, use the dimensions on the
following page to guide construction.
Scale Dimensions Min. Cut-Out Dimensions
D10.4 in. (26.4 cm) 11.1 in. (28.2 cm)
W6.4 in. (16.3 cm) 7.1 in. (18.0 cm)
H2.5 in. (6.35 cm)*
*Adjustable to 3.0 in. (7.6 cm)
Scale Dimensions Min. Cut-Out Dimensions
D10.4 in. (26.4 cm) 11.1 in. (28.2 cm)
W10.4 in. (26.4 cm) 11.1 in. (28.2 cm)
H2.5 in. (6.35 cm)*
*Adjustable to 3.0 in. (7.6 cm)
Scale Dimensions Min. Cut-Out Dimensions
D12.6 in. (32.0 cm) 13.25 in. (33.7 cm)
W14.1 in. (35.8 cm) 14.75 in. (37.5 cm)
H4.1 in. (10.4 cm)*
*Adjustable to 4.6 in. (11.7 cm)
Unpacking the Scale
Installing the Scale
Model 6702
Model 6710
Model 6720
Model 6700 Family User’s Manual
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Operation
Power Up Test
Sequence
If RAM or ROM error
is reported, you must
press the TEST key to
acknowledge the
condition. See “Error
Codes” section.
3. Loosen the collets or jam nuts on the leveling
feet. Level the scale by using the level bubble
under the scale platter as a guide. Be sure all
four feet are in firm contact with the counter,
then tighten all collets and jam nuts.
4. Make sure all power cords, remote display
cables, etc., are not touching the live weigh-
ing surface.
5. Plug the unit into an appropriate voltage
outlet that is properly grounded.
6. The 6720 scale can support more than one
display; however, only one keypad is oper-
able. Switch 3 selects internal or external
display keypad operation.
Switch 3 Settings
Closed= internal display keys operational
Open = external display keys operational
The normal setting for the 6720 with the
internal display is Switch 3=Closed. On 6720
w/remote only or 6710 and 6702 scales,
Switch 3=Open.
When the scale is first powered up, it will perform
a test sequence. During this sequence, the
display will show the following:
• The model number and the software
version/revisionlevel.
• A numeric counting test for all segments of
the display. During this test, a test of
Random Access Memory (RAM) and a test
of Read Only Memory (ROM) is performed.
If everything is OK, the display will show zero
weight and the scale is ready for use.
Model 6700 Family User’s Manual 9
1. With the scale powered on, make sure the
scale platter is empty and the display is at
zero. If it is not, press the ZERO key…
0.00 is displayed.
2. Place an item to be weighed on the scale
platter…
The scale will display the gross weight.
3. Remove the item from the scale platter.
ZERO Key – The ZERO key will zero the scale if
weight is stable, and acts as the NO or SCROLL
key in the Menu mode.
TEST Key – The TEST key can be used to
perform the initial power-up test sequence, recall
diagnostic routines, or to view the scale configu-
ration information. This key also acts as YES or
ACCEPT in the Menu mode.
The 6700 models power up ready for weighing
operations. Access the Menu mode by setting
Switch 1 shown in Figure 1 or 2 to the OPEN or
Menu mode position.
Top View of 6720 Scale with Platter Removed.
Performing a Normal
Weighment
If the scale is outside
the ± 2% zero window,
center dashes are
displayed “- - - -.” If
necessary, reapply
power to reset the
initial zero setting.
Operation Controls
Accessing the
Menu Mode
Figure 1
6720 Switch
Location
Model 6700 Family User’s Manual
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There are three modes available to you with
Switch 1 in the Menu mode or OPEN position.
They are as follows:
DIAG (Diagnostic Mode) – To test areas of
the scale’s function
CAL (Calibration Mode) – To calibrate the
scale
CONF (Configuration Mode) – To configure
the scale for your application
The structure for these menus is shown in Figure
3. Specific information about each mode followed
by step-by-step instructions for accessing them
are described in the following pages.
Figure 2
Bottom view
Menu Mode
Bottom View of 6702 or 6710 Scale
Altri manuali per 6720
1
Questo manuale è adatto per i seguenti modelli
2
Indice
Altri manuali NCI Scala
