Vishay G4 Operating Instructions Manual
GB
G4 Multi Channel
Weighing Instrument
Program version 1.2.0.0
Operating instructions,
Quick installation
PM/DT/HE types
Operating instructions, Quick installation
G4 Multi Channel Weighing Instrument
Contents
Introduction
General ............................................................. 1
Power supply ..................................................... 1
Start-up ............................................................. 1
Maintenance ..................................................... 2
Safety information ............................................. 2
Front panel
General ..............................................................3
Display alternatives ............................................4
Operation
Zero indication and zero adjustment ..................5
Gross weight ......................................................5
Net weight ..........................................................6
Taring .................................................................6
Editing Preset Tare ............................................7
Level supervision ...............................................8
Flow display .......................................................9
Installation
Mechanical installation .....................................11
Electrical installation ........................................11
DC supply, AC supply ......................................12
CPU unit ...........................................................13
WF IN, WF IN2 and HS WF2 ...........................14
Basic set-up
General ............................................................17
Hardware configuration ....................................17
Security lock .....................................................17
Common parameters .......................................18
Clock set-up .....................................................20
Scale calibration ...............................................21
Data sheet calibration ......................................24
Deadweight calibration .....................................27
Zeroing of gross weight ....................................30
Appendix 1
Common set-up values
Appendix 2
Scale set-up values
Operating instructions, Quick installation
PRECAUTIONS
READ this manual BEFORE operating or servicing this instrument.
FOLLOW these instructions carefully.
SAVE this manual for future reference.
WARNING
!
Only permit qualified personnel to install and service this instrument.
Exercise care when making checks, tests and adjustments
that must be made with power on.
Failing to observe these precautions can result in bodily harm.
DO NOT allow untrained personnel to operate,
clean, inspect, maintain, service, or tamper with
this instrument.
G4 Multi Channel Weighing Instrument
Introduction
General
G4 is a high performance multi channel weighing instrument intended for industrial
systems. Its basic function is to convert the signals from strain gauge transducers to
useful weight information. Several types of communication interfaces are supported
by G4, which makes it easy to integrate the instrument into industrial processes.
The front panel of G4, types PM/DT/HE, is flat, dustproof, and waterproof. It has
a back lighted graphical colour LCD display with touch sensitive screen for weight
information, set-up information and error messages.
It also has function keys and a numeric keypad for entry of digits.
The basic configuration of the instrument performs weighing and flow rate
calculation. All functions are controlled by set-up parameters.
‘Operating instructions, Quick installation’ for G4, types PM/DT/HE, includes basic
installation and set-up information, required for correct measuring with the instrument.
This description deals with the following points:
• Weighing with G4, types PM/DT/HE.
• Flow rate measurement.
• Quick installation.
• Data sheet calibration.
• Deadweight calibration in two points.
Additional installation and set-up of more instrument functions, not covered by this
description, can also be performed, for example:
• Complete installation.
• Complete set-up.
• Setting of communication parameters.
• Table calibration.
• Level supervision.
For a complete instrument description, refer to:
G4 Multi Channel Weighing Instrument
Technical Manual PM/DT/HE types
Power supply
Power supply to the weight indicator should not be turned off during weekends and
over-night. Continuous power supply to electronics and transducers prevents moisture
condensation in the units.
Start-up
As soon as power is connected to the instrument, a start-up period begins.
The text ‘Start up Please wait!’ and a WAIT symbol (hour-glass) will be displayed
after some seconds.
Then G4 automatically switches to normal measuring operation.
If the instrument is set for operator start-up, the text
‘Press ENTER to start operation!’ will be shown.
If a warm up time has been set, the text ‘Warming up Please wait!’ will be displayed
before the instrument switches to measuring operation.
If any error is detected, the start-up stops and an error message will be displayed.
1
Operating instructions, Quick installation
Maintenance
The G4 instrument needs no maintenance performed by the end-user. Any service
or repair work must be performed by qualified personnel. Contact your supplier.
Cleaning
Before cleaning the G4, break the power connection to the instrument.
Use a soft cloth to clean the exterior of the instrument. For cleaning
the instrument front panel, a soft, damp, cloth may be used.
Safety information
Utilization.
Before connecting power to the instrument, check that all fixation screws at the modules
are tightened so that the instruments functional grounding by the housing is maintained.
The instrument may only be utilized for the measurement and control functions, described
in the Technical Manual for G4 Multi Channel Weighing Instrument, PM/DT/HE types.
It is especially important to adhere to the load limits of the input/output connectors.
We accept no responsibility for any damage arising from improper operation.
Any changes to the instrument, which causes any function changes, may only be
carried out by the manufacturer, or after discussion with and permission by
the manufacturer.
Meaning of symbols, used in this manual
Direct current.
Alternating current.
!
Caution, risk of danger. Documentation needs to be consulted.
Front panel of instrument G4, types PM, DT, and HE.
2
G4 Multi Channel Weighing Instrument
Front panel
General
G4 has a flat, dustproof, and waterproof front panel with a back lighted and touch
sensitive graphic colour LCD display and all necessary keys to perform weighing,
batching, and set-up operations.
Display
G4 normally displays either gross weight or net weight digitally, and in some cases
also gives a graphic representation of the gross weight.
Actual status information for the weight value and date and time will also be shown
at the display.
The Level status (max 4 levels) for the scale and other configurable information may
also be displayed in some cases.
If an error occurs this will be indicated by an error code at the display.
Info key
The Info key at the upper right corner of the panel is used to enter G4 menu system.
Function keys
Just below the display there are five function keys, marked F1 to F5.
Actual key functions, if any, are indicated at the lower line of the display.
To the right of the display, four arrow keys are provided. These keys control
the position of the cursor, the indicated area at the display.
The Enter key (
) is situated between the arrow keys. It is used to accept
the selection indicated by the cursor, to finish the entry of a value etc.
A set of keys for entry of digits is also provided.
Pressing function keys or the Enter key can be replaced by tapping at corresponding
areas in the display.
Symbol keys
Six keys, marked with weighing symbols, are provided at the lower border of the panel.
Three of them control the zero setting function, the tare function, and the gross/net
function. The remaining three keys have no function in these instrument versions.
Key Name Function
ZERO
0
ZERO Setting the gross weight value to zero (provided the value
is in the zeroing range: –1 % to +3 % of the capacity) and
setting the auto tare value to zero.
TARE
T
TARE Taring, i.e. entry of the gross weight as auto tare value and
display of net weight zero. Depending on actual setting
taring may be prevented if ‘Motion’ is displayed.
B/N
GROSS/NET Toggling between display of gross weight and net weight.
Net weight can be displayed only if a tare value other than
zero has been entered.
3
Operating instructions, Quick installation
Display alternatives
It is possible to configure G4 to display one, two or four scales at a time, or a
combination of the mentioned views. If a combination of views is used, the arrow keys
'right' and 'left' are used to select a display alternative. Only configured scales will be
shown.
Arrow keys 'up' and 'down' are used to select one of the configured scales. When
several scales are displayed, the selected scale is indicated yellow. The function keys
will influence only the selected scale.
If display of only one scale is selected, detailed information of weight and other selected
information can be presented.
If display of two or four scales is selected, the weight values will be shown, but less other
information.
2006-09-24 19:07
------ ------ ------P.Tare Levels
Scale: 1 Gross
103.2 kg
Levels 4: 5: 6: 7:
Preset Tare: 33.0kg
Water
2006-09-24 19:07
------ ------ ------P.Tare Levels
Scale: 1
Gross
102.8 kg
Scale: 2
Net Zero
000.0 kg
Scale: 3
Net Zero
000.0 kg
Scale: 4
Gross
004.9 kg
2006-09-24 19:07
------ ------ ------P.Tare Levels
Scale: 2
Net Motion
3.4 kg
Scale: 1
Gross
103.2 kg
‘Level status’
Status of the level supervision is presented in four boxes below the weight value
presentation. The boxes have fixed positions. When a digit is shown at a box,
the corresponding Level is in use. For each scale the four lowest level numbers
that are in use will be shown. A Level box will be marked green when the level
of the supervised weight signal is above the set value for that Level.
‘Information lines’
By set-up parameters it is possible to configure the instrument to display selected
information on two information lines below the Level status boxes.
2006-09-24 19:07
Scale: 1 Gross
103.2 kg
Levels 4: 5: 6: 7:
Preset Tare: 33.0kg
Water
------ ------ P.Tare Levels ------
Example:
Levels 4, 5, 6, and 7 are in use; the weight signal is above Level 4.
Preset Tare (33.0 kg for Scale 1) on Info line 1.
Scale Name (Water for Scale 1) on Info line 2.
4
G4 Multi Channel Weighing Instrument
Operation
Zero indication and zero adjustment
A basic zero setting of the gross weight for unloaded scale is performed at installation
as a part of the calibration. When a ‘good zero’ is displayed, the text ‘Zero’ is shown
to the right in the display.
Minor correction of the zero value may be needed and can rapidly be performed.
Zero adjustment
If, for unloaded scale, the text ‘Zero’ is not shown, but the gross weight is
close to zero, a rapid zero adjustment can be performed.
The gross weight must be stable (text ‘Motion’ not shown) and the key ZERO
must be enabled.
2006-09-24 19:07
Scale: 1 Gross
000.2 kg
Levels 4: 5: 6: 7:
Preset Tare: -----
Water
------ ------ P.Tare Levels ------
ZERO
0
2006-09-24 19:07
Scale: 1 Gross Zero
000.0 kg
Levels 4: 5: 6: 7:
Preset Tare: -----
Water
------ ------ P.Tare Levels ------
Zero adjustment can only be performed if the accumulated deviation from the basic zero
setting in the last calibration is within -1 % to +3 % of the ‘Capacity’.
In other cases a new basic zero setting must be performed.
Gross weight
The gross weight is the total weight loaded on the scale after zero setting.
Gross weight is displayed when the text ‘Gross’ is shown in the display.
When net weight is displayed, the GROSS/NET key can be pressed to change
to display of gross weight, provided that the GROSS/NET key is enabled.
2006-09-24 19:07
Scale: 1 Net
103.2 kg
Levels 4: 5: 6: 7:
Preset Tare: -----
Water
------ ------ P.Tare Levels ------
GROSS/NET
B/N
2006-09-24 19:07
Scale: 1 Gross
143.4 kg
Levels 4: 5: 6: 7 :
Preset Tare: ------
Water
------ ------ P.Tare Levels ------
In some cases, gross weight is shown as a graphic bar at the display.
Maximum length of the bar corresponds to ‘Capacity’ of the scale.
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Operating instructions, Quick installation
Net weight
The net weight is the difference between the gross weight and a tare value.
If the tare value is zero, net weight can not be displayed.
Net weight is displayed when the text ‘Net’ is shown in the display.
When gross weight is displayed, the GROSS/NET key can be pressed to change
to display of net weight, provided that the GROSS/NET key is enabled.
2006-09-24 19:07
Scale: 1 Gross
143.4 kg
Levels 4: 5: 6: 7:
Preset Tare: ------
Water
------ ------ P.Tare Levels ------
GROSS/NET
B/N
2006-09-24 19:07
Scale: 1
Levels
Preset Tare:
Water
Net
103.2 kg
4: 5: 6: 7:
-----
------ ------ P.Tare Lev els ------
Taring
Taring means storing of a tare value for the scale. Net weight will be calculated as
the difference between the gross weight and this tare value. If the tare value is zero,
net weight will not be displayed.
At default setting, taring can always be performed, provided the key TARE is enabled.
But the scale can also be set to allow taring only at stable weight (when the text
‘Motion’ is not shown).
In G4 two tare values can be used: Auto tare and Preset tare.
Auto tare
By taring, the actual gross weight is stored as Auto tare value, and the scale will switch
to display of net weight ‘zero’.
2006-09-24 19:07
Scale: 1 Gross
014.5 kg
Levels 4: 5: 6: 7:
Preset Tare: ------
Water
------ ------ P.Tare Levels ------
TARE
T
2006-09-24 19:07
Scale: 1
Levels
Preset Tare:
Water
Net Zero
000.0 kg
4: 5: 6: 7:
-----
------ ------ P.Tare Lev els ------
6
G4 Multi Channel Weighing Instrument
Editing Preset tare
In this example Scale 1 is set for taring with
‘Preset tare’, and for displaying the value
of the ‘Preset Tare’ at Info Line 1
(and Scale Name at Info Line 2).
The example shows editing the Preset tare
value, using the numeric keypad.
Press 'P.Tare'.
2006-09-24 19:07
Scale: 1 Gross
034.5 kg
Levels 4: 5: 6: 7:
Preset Tare: 0.00 kg
Water
------ ------ P.Tare Levels ------
Press 'Edit' to edit the value.
If Operator Lock is activated,
the Operator Code will be needed.
Preset tare, Scale 1
Preset Tare 1 0.0 kg
Edit Escape
The actual value of 'Preset tare' is displayed.
Use the numeric keypad to write the new value.
Finish by 'Enter'.
Edit: Preset tare 1
Enter Escape
Value: kg
Maximum value: 999999 kg
Minimum value: 0 kg
33.0
Menu 'Preset tare, Scale 1' will be shown
with the new value.
Press 'Escape' to return to display of
normal weighing operation.
Preset tare, Scale 1
Preset Tare 1 33.0 kg
Edit Escape
7
Operating instructions, Quick installation
Level supervision
With G4 it is possible to supervise different weighing signals at defined levels.
The instrument contains 32 supervising units, Level 1 to Level 32, which can be
connected to the scales by the parameter set-up. For each scale up to 4 connected
Levels are indicated at the display in normal operation. All Levels connected to a scale
are shown if 'Levels' or function key F4 is pressed.
Edit Levels
The supervision levels are easily edited from
the G4 front panel during normal operation.
In this example Scale 1 has five levels of
supervision.
Level number 6 should be edited.
Press 'Levels'.
Select Level 6 by using arrow keys up and
down to position the indicator.
(Or tap at Level 6 to edit.)
Press 'Edit'.
If Operator Lock is activated, the Operator Code
will be needed.
The actual value of Level 6 is displayed.
Use the numeric keypad to write the new value.
Finish by 'Enter'.
Menu 'Levels, Scale 1' will be shown
with the new value for Level 6.
Press Escape' to return to display of
normal weighing operation.
2006-09-24 19:07
------ ------ ------P.Tare Levels
Scale: 1 Gross
034.5 kg
Levels 4: 5: 6: 7:
Preset Tare: 33.0 kg
Water
Levels, Scale 1
Edit Escape
Level 4 20.0 kg
Level 5 40.0 kg
Level 6 55.0 kg
Level 7 85.0 kg
Level 9 120.0 kg
Edit: Level 6
Enter Escape
Value: kg 60.0
Maximum value: 999999 kg
Minimum value: -999999 kg
Levels, Scale 1
Edit Escape
Level 4 20.0 kg
Level 5 40.0 kg
Level 6 60.0 kg
Level 7 85.0 kg
Level 9 120.0 kg
8
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