Salter Brecknell 3700LP User Manual

3700LP
Bench Scale Series
User’ s Manual

EUROPEAN COUNTRIES

WARNING

This is a Class A product. In a domestic environment this product may cause radio

interference in which the user may be required to take adequate measures.

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.

10/16/06 3700LP_U.P65 PN 43018-0018C e2 Printed in USA

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3700LP Bench Scale Series User’s Manual

Table of Contents

Table of Contents .............................................................................. 3

Specifications..................................................................................... 4

Introduction........................................................................................ 5

Unpacking and Setup ........................................................................ 5

Front Panel ........................................................................................ 6

Operation........................................................................................... 6

Performing a Weighment ............................................................. 6

Printout Output ............................................................................. 7

Operation of the Optional Footswitch ........................................... 8

Sleep Mode and Power Down Timer............................................ 8

Battery Information ............................................................................ 9

Maintenance ...................................................................................... 9

RS-232 Protocols............................................................................... 9

RS-232 Protocol Tables ............................................................... 9

Diagnostics Menu ............................................................................ 13

Installing the Display Mounting Bracket........................................... 15

3700LP Bench Scale Series User’s Manual

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Specifications

Capacity and Dimensions

Construction

Display

Units of measure

Keys

Power

Model Capacity LB (kg) Dimensions Resolution LB (g)

3730LP 10 (5) 10.4” x 10.4” x 2.5” .002 (1)
3730LP 25 (10) 10.4” x 10.4” x 2.5” .005 (2)
3730LP 50 (25) 10.4” x 10.4” x 2.5” .01 (5)
3732LP 100 (50) 14” x 14” x 2.9” .02 (10)
3732LP 250 (100) 14” x 14” x 2.9” .05 (20)
3734LP 100 (50) 18” x 18” x 3.1” .02 (10)
3734LP 250 (100) 18” x 18” x 3.1” .05 (20)

Aluminum base on 10”x10” model or mild steel base on 14”x14” and 18”x18”
models. Stainless steel shroud.

Backlit LCD display with six .5” tall digits. Housed in a 6” aluminum alloy
extrusion. Display can be attached to base with supplied aluminum display
bracket and secured with magnetic strips. Can also be remotely mounted
with 7’ of included cable.

lb, kg, g or oz. Front panel switching between units of measure (Note: only
two units active at any one time).

Units, Print and Zero.
120 VAC ±10% - 15%, 60 Hz. (UL/CUL)

Internal resolution

Power supply

Overload

Battery recharge time

Output

Operating environment

Agencies

Options

100,000 internal counts of resolution.
Internally mounted on models 3732LP and 3734LP. Wall mounted on

model 3730LP.
Up to 200% of scale rated capacity.
6 hours when powered down.
Bidirectional RS-232 with selectable baud rates from 1200 to 19.2K.
41°F to 104°F (5°C to 40°C). 10 to 95% relative humidity, non-condensing.
NTEP C.O.C. # 02-069, CW&M AM#5507 (5000div class III)
Factory installed battery: Up to 20 hours of continuous operation with

backlight turned on. When used with the display backlight turned off or in
auto mode, battery operation is extended up to 75 hours of operation.
Internally mounted, sealed lead acid gel cell battery provides up to 500
discharge/recharge cycles. Battery fully recharges in 6 hours by plugging the
scale into an AC outlet. Scale can be used while recharging. (Not available
on 3730LP model)

Distributor installed battery kit – (Not available on 3730LP Models)
Auto power off – Two power saving modes can be configured to turn the

backlight off or shut down the scale after inactivity to preserve battery life.

Ball top kit – (Not available on 3730LP Models)
Display swivel bracket kit
12” pole display kit
Footswitch for zero or print (factory installed)– With 4 ft. or 10 ft. long

cable assembly.
230 VAC operation – 230 VAC ±10% - 15%, 50 Hz

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3700LP Bench Scale Series User’s Manual

Introduction

The 3700LP Series is made up of several sizes and capacities of low profile
bench scales. These scales have heavy duty bases, stainless steel, wrap­around shrouds and easy to see and operate display panels that can be
mounted on the unit or remotely, by cable. See Specifications for all the
options and models which are available.

This manual covers the following:

• Introduction to the 3700LP family

• Unpacking and setup

• Front Panel

• Operation

• Maintenance

Major sections of the manual are separated by black bar headers as seen
above (Introduction). Subheadings appear in the left column along with
important notes, tips and warnings.

If you have any problems with your scale, contact your local Avery Weigh­Tronix distributor.

Unpacking and Setup

Only plug this unit into a
properly grounded, easily
accessible outlet of the
proper voltage. Injury or
damage to the unit may
occur if the unit is not
properly grounded.

Unpack your 3700 scale and inspect it for shipping damage. Report any
damage to your shipping company immediately and save all packing materi­als.

Place the unit on a stable, level surface. Look at the bubble level under the
stainless steel shroud as you adjust the threaded feet to level the scale.
Tighten the jam nuts up against the scale base once the scale is level.

Plug the display cable into the proper connector on the back of the scale.
Plug the power cord into the proper connector on the back of the scale.

If your unit is battery powered, charge the battery for 6 hours and disconnect
from the charger before using the scale. Battery life depends on usage of
the backlight and other factors.

The 10” x 10” scales do not have the battery option.

If you have a printer or other peripheral device, plug it into the proper
connector on the back of the scale.

3700LP Bench Scale Series User’s Manual

5

Front Panel

The front panel consists of the display window, annunciator labels, and three
operation keys; PRINT, UNITS, and ZERO. See Figure 1.

Figure 1

Front panel

The display has five LCD weight digits and annunciators. The display is
backlit for greater visibility.

The center-of-zero annunciator
lights up when the scale is
within ¼ graduation of zero.

Operation

Performing a
Weighment

The center-of-zero, lb and kg annunciator labels are indicated as active
when the annunciators appear to their left in the display window. In Figure 1,
the annunciators show the scale is at zero weight and in the lbs unit of
measure.

The key functions are listed below:
PRINT Press this key to send serial data to a peripheral printer or other

device. If there is motion on the scale, CANT is displayed and
no printing will occur.

UNITS Press this key to toggle between available units of measure. If

the scale is configured to limit the scale to just one unit of
measure, the display will show CANT if you try to switch the unit
of measure.

ZERO Press this key to zero the weight display. If there is motion on

the scale, CANT is displayed and the zero request is ignored.

To perform a weighment, follow these steps:

1. Remove all weight from the scale and press the ZERO key.
Display should show 0 weight.

2. Place the item to be weighed on the scale.
Display shows the weight.

3. Remove the item and repeat steps 1 and 2 for each item.

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3700LP Bench Scale Series User’s Manual