WI-150 Ultra Low-Power
Weight Indicator
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.
12/13/04 150_U.P65 PN 29533-0013K e1 Printed in USA
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WI-150 Ultra Low-Power Weight Indicator User's Manual
Table of Contents
Introduction .................................................................................... 7
Operations Mode ........................................................................... 7
Keyboard ....................................................................................... 8
Indicator Operation ........................................................................ 9
Powering Up ....................................................................... 9
Annunciators ..................................................................... 10
Operations Mode .............................................................. 10
Gross/Tare/Net Weighing Operations .................... 11
Gross Weighing .................................................. 11
Net Weighing ...................................................... 12
Pushbutton Tare ............................................. 12
Clearing the Active Tare.................................. 12
Creating a Quick Tare ..................................... 12
Entering, Retrieving and Changing
Values in Tare Registers ................................. 13
Net Weighing Operation .................................. 13
Entering or Viewing an ID Number.................................... 14
Viewing and Setting Cutoffs .............................................. 14
Controlling Cutoffs ............................................................ 16
To Access the Control Function ............................. 16
To Activate and Control the Cutoffs ....................... 16
Viewing and Setting Time ................................................. 17
Viewing and Setting Date .................................................. 18
Transmitting Data.............................................................. 18
Communication Protocol ........................................ 19
Indicator Diagnostics ................................................................... 20
Test Mode ........................................................................ 20
Appendix A: Battery Life .............................................................. 22
Pages are numbered consecutively beginning with the cover page.
WI-150 Ultra Low-Power Weight Indicator User's Manual
3
WI-150 Specification
Enclosure
Hazardous location classifications
Entity parameters
Display
Display Rate
Accuracy
Linearity
Repeatability
Hysteresis
Voltage Requirements
Weigh Bar Drive Capacity
Weigh Bar Excitation Voltage
Environment
Calibration and Programming
NEMA 4 watertight, stainless steel
Class I, Divisions I and II, Groups A, B, C, and D;
Class II, Divisions I and II, Groups E, F, and G; and
Class III, Divisions I and II
Vmax = 19 V, Imax = 450 mA, Ci = 0.24 uF, Li = 0 mH
7-segment LCD, 8 digits, 1.0 inch high with 10 annunciators
1, 2 or 5 times per second
Span: ±5.0 ppm/°C
Span: ±10 ppm/°C
Zero: ±.066 uV/°C (-10 to 40°C)
Zero: ±0.13 uV/°C (-30 to 60°C)
±0.005% of capacity, maximum
±0.005% of capacity, maximum
0.005% of capacity, maximum
+5.6 to 13.5 volt DC
Up to eight 350 ohm weigh bars
Approximately 4 volts
-10 to 40°C (14 to 104°F) for HB-44 specs
-30 to 60°C (-22 to 140°F) reduced accuracy
10 to 90% relative humidity
All calibration and programming is done through the front panel with data stored in nonvolatile memory.
Analog Range
Scale Capacities
Scale Division Sizes
Push Button Zero Range
4
-0.14 to +3.5 mV/V
.00001 to 999999, programmable to any number between these limits
.0001 to 20000, programmable to any division size between these limits
0 to ±100% of capacity; programmable independent positive and negative limits; unit will not allow zeroing beyond capacity.
Tare
The unit may be configured to have pushbutton tare and/or 0 to 10 keyboard tare storage registers. May also pushbutton tare into the keyboard tare registers. Pushbutton tare and keyboard tare may tare only positive gross weights up to the capacity of the unit.
WI-150 Ultra Low-Power Weight Indicator User's Manual
Over Range Capacity
Motion Detection Window
Automatic Zero Tracking
Linearity Adjustment
Analog Low Pass Filter
Software Low Pass Filter
Fiber Optics Cable Length
Options
The scale will display weights up to and including full scale capacity less any weight zeroed out by the operator.
Programmable from 0 to 999999 divisions, decimal entries are accepted,
999999 turns motion detection off, default is 1 division.
Window: Programmable from 0 to 999999 divisions, decimal entries area accepted, default is 1 division, 0 turns AZT off
Net Mode
Tracking: Configurable to track in net at gross zero
Rate: 0,1 division per second
Starting
Delay: 2 seconds
Second order correction provides smooth curve fit through three points.
Two section with .06 second time constant.
One section with .05 second time constant; weight averaging over 1 to 10 display intervals.
250 feet maximum
Fiber Optics Interface Card with Real Time Clock
WI-150 Ultra Low-Power Weight Indicator User's Manual
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6
WI-150 Ultra Low-Power Weight Indicator User's Manual
Introduction
The WI-150 is a full-function, ultra low-power weight indicator which is designed for Class I, Division I and II, Groups A, B, C, and D; Class II,
Division I and II, Groups E, F, and G; and Class III, Division I and II hazardous locations. The enclosure is also rated NEMA 4. The indicator comes in two versions. One is powered by an external, rechargeable battery pack and the other is powered by an AC to DC conversion unit which operates in a safe area.
This User's Manual is divided into the following sections:
• Introduction
• Operations Mode
• Keyboard
• Indicator Operation
• Indicator Diagnostics
Operations Mode
Operations Mode contains all normal weighing operations. In this mode you can view or set any of the following parameters if your unit contains the appropriate options and is so configured:
• pushbutton tare
• one to ten tare registers (numbered 0-9)
• identification number
• one to eight cutoff registers (numbered 0-7)
• cutoff control
• time
• date
Any combination of these items can be secured behind a security code. Any items secured by the code number can be viewed but not changed unless you enter the security code.
WI-150 Ultra Low-Power Weight Indicator User's Manual
7
Keyboard
The keyboard consists of 18 keys. Five keys, or buttons, provide all the basic weighing functions:
• Zero
• Tare
• Gross / Net
• Print
• Units
The other keys are used to access the menus for purposes of accessing information, testing the indicator, and configuration. The keyboard and key functions are shown in Figure 1.
8
Figure 1
Keyboard layout
Puts the battery powered model indicator into an ultra low-power consumption mode called the sleep mode.
Wakes the battery powered model from sleep mode. Is not functional in the
AC/DC powered version.
Zeros the scale in gross/net weigh mode. This button also clears keyed-in digits on the display before they are accepted.
Changes the unit of measure during operations mode and inserts a decimal point (.) when keying in values.
WI-150 Ultra Low-Power Weight Indicator User's Manual
Enters numbers and specifies tare registers and cutoff values.
Used to access menus and move among choices in a menu.
Sends a print command and is used to select menu items.
Enters a pushbutton tare in gross/net operation. During data entry this key is used to toggle between positive and negative values. Used to enter a dash
(-) in ID numbers.
Accesses the gross/net weighing mode from any other function and toggles the unit between gross and net weights, assuming there is an active tare weight.
Indicator Operation
Powering Up
Upon installation and connection to a power source (either the battery pack or the AC/DC power source), your indicator is in active mode and is ready to begin weighing.
The battery powered model has a battery saving "sleep" mode which is activated after a programmable amount of time. The display reads ASLEEP when in this mode. To awaken the indicator, press the ON button. The indicator will return to the same mode of operation it was in when it went to sleep.
The AC/DC powered model is always in active weighing mode. To turn the unit off, the power source must be disconnected.
The indicator display, Figure 2, tells you the status of the indicator through the illumination of annunciators. The annunciators are small black arrows pointing to the different labels around the display face.
WI-150 Ultra Low-Power Weight Indicator User's Manual
9
Annunciators
Operations Mode
Gross -
Tare -
Net -
lb, kg, gal -
Low Bat -
Motion -
Print -
Zero -
Illuminates when indicator is in gross weighing mode.
Illuminates when you are viewing tare values in the various registers.
Illuminates when a tare is in effect and the indicator is in net weighing mode.
Illuminates the active unit of measure in weighing mode.
Illuminates when the battery voltage is low. Battery pack should be removed from the indicator within 24 hours and recharged in a safe area.
Illuminates when indicator detects scale motion.
Illuminates when the print key is pressed and while data are transmitted.
Illuminates when the scale is within ±1/4 division of zero.
Your unit may contain several options and therefore be configured to display some or all of the following functions: cutoff control, pushbutton tare, one to ten keyboard tare registers, ID number, cutoffs, time, and date. These can be viewed and changed if allowed by the security code. This manual
assumes the unit is optioned and configured to allow full access to all
functions. You can disable unneeded options. Instructions are in the
Service Manual. Below is a flowchart and general instructions for moving around the operations mode menu.
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WI-150 Ultra Low-Power Weight Indicator User's Manual
Figure 3
Operations Menu
Press MENU to go
Press and hold MENU to go
Press SELECT to go or
Press SELECT to select new choice
Press GROSS/NET at any time to return to gross/net weighing mode
Gross/Tare/Net
Weighing Operations
Gross Weighing
To perform gross/net weighing operations, follow these steps:
1. Power up the indicator.
Battery powered indicator powers up in the same mode of operation as when it went to sleep. AC/DC powered indicator is constantly powered.
2. If the unit is not in gross mode, press the GROSS/NET button once to get to gross/net mode and again if the net annunciator is illuminated.
The annunciator illuminates next to gross. See Figure 2.
3. Zero the scale by pressing the
ZERO button.
No weight is displayed and the zero annunciator illuminates. See Figure
2.
4. Select unit of measure by pressing the UNITS button.
5. Place weight on the scale.
The units annunciator will point to the chosen unit of measure.
Gross weight is displayed.
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Net Weighing
For net weighing operations a tare needs to be entered. A tare can be entered by two methods: pushbutton tare or selecting a tare from the tare register (a memory bank of up to ten tares).
Pushbutton Tare
1. With the indicator powered up and in gross mode, zero the scale by pressing the ZERO button.
No weight is displayed and the zero annunciator illuminates.
2. Place the weight to be tared on the scale.
The weight of the object is displayed.
3. Press the TARE button on the indicator.
The weight is tared, the display reads zero and the net annunciator illuminates.
4. Add more weight to the scale.
Net weight is displayed.
5. View the gross weight by pressing the GROSS/NET button. Gross weight is displayed.
6. Press GROSS/NET again to see net weight.
Net weight is displayed.
Clearing the Active Tare
There are two ways to remove the current or active tare weight:
A. Remove all weight from the scale and press TARE.
Pushbutton tare register is cleared, scale returns to gross mode and no weight is displayed.
B. 1. With the gross or net annunciator illuminated, press MENU until TARE is displayed, then press
CLEAR.
2. Press GROSS/NET key.
NO TARE is displayed.
Gross weight is displayed. All tare registers remain intact but are inactive.
Creating a Quick Tare
Key in the tare value you want to use and press the TARE key. That value becomes the active tare.
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WI-150 Ultra Low-Power Weight Indicator User's Manual
Entering, Retrieving, and Changing Values in Tare Registers
To set a tare register to 0, key in 0 in step 3A.
If register 5 has an existing value and you wish to select that register value as your tare, you can press PRINT/SELECT to select that value, then press
GROSS/NET to return to weighing mode.
There is a one-step way to accept a keyed in value and return to gross/net weighing mode. After the value is keyed in, press GROSS/NET. Value is accepted and gross or net annunciator illuminates.
If you want to review all the
existing tare values, with TARE
displayed, press PRINT/
SELECT then repeatedly press MENU to scroll through all tare registers and the current pushbutton tare value.
1. With the gross or net annunciator illuminated, press the MENU button until. . .
TARE is displayed.
2. Key in a tare register number to view the value in the register.
Numbers allowed are 0-9. For this example, tare register 5 will be used. Key in numeral 5.
The tare annunciator illuminates and the display shows 5 0 , showing that register 5 has no value entered. Your indicator may have a value in register 5.
3. You can enter a tare value in a register in two ways:
A: key in a tare value, or
B: use the pushbutton tare.
A: Key in 155 for this example, then press PRINT/SELECT. The value is accepted and TARE is displayed.
B: With the desired register number displayed and the tare weight on the scale, press TARE. The register number and new tare weight are displayed, then the value is accepted and TARE is displayed
4. Press MENU to proceed to next tare register.
5. Press GROSS/NET to return to the weighing mode.
The net annunciator illuminates.
Net Weighing Operation
1. After a tare is established, place the indicator in net mode by pressing the GROSS/NET button. Net annunciator illuminates. Zero weight will be displayed with the container on the scale.
2. Place material to be weighed in the container on the scale.
Net weight of material is displayed.
WI-150 Ultra Low-Power Weight Indicator User's Manual
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Entering or Viewing an ID Number
Viewing and
Setting Cutoffs
An 8-digit identification number can be entered on the WI-150. The following steps tell you how to enter and view an ID number:
1. While in gross weighing mode, press MENU repeatedly until . . .
ID. is displayed.
The current ID number is displayed.
2. Press PRINT/SELECT.
3. To accept this value press
PRINT/SELECT or
GROSS/NET. To enter a new value, key in up to 8 digits, then press PRINT/SELECT to accept the new value.
ID. is displayed after ID number is accepted.
In the weighing industry, a cutoff is a weight at which something happens. In the case of the WI-150 indicator, an internal electrical connection is broken causing an external relay to de-energize. This, in turn, causes a motor or other electrical device to shut off.
Cutoffs are used to load controlled amounts of ingredients. When connected to the appropriate Fiber-Link, the WI-150 can control up to eight ingredients.
You set the weight of each ingredient and the indicator, through connections to external relays, will stop the flow of each ingredient when the proper weight of that ingredient has been added to the scale.
There are two types of cutoffs in the WI-150: the ingredient cutoff (default) and the setpoint cutoff. With ingredient cutoffs, you tell the indicator the weight of each ingredient you want and the indicator will call for that much of each ingredient, no matter what the weight display says. If you want 100 pounds of ingredient #1 and 100 pounds of ingredient #2, you would enter
100 for cutoff #0 and 100 for cutoff #1.
With setpoint cutoffs, you tell the indicator at what weight display you want the cutoffs to activate. In other words, if you want 100 pounds of ingredient
#1 and 200 pounds of ingredient #2, you would set the first setpoint cutoff at
100 and the second cutoff at 300 pounds because that is what the weight display will read when you want the actions to occur.
You can tell which kind has been configured in your indicator by looking at the cutoff number in the Operations Menu in Figure 3. If the cutoff number has a decimal point following it, the cutoff is a setpoint type. If there is no decimal, it is configured as an ingredient type.
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WI-150 Ultra Low-Power Weight Indicator User's Manual
To view or set cutoff values, follow these steps:
1. From gross/net weighing mode, press MENU repeatedly until . . . . CUTOFFS is displayed.
2. Press PRINT/SELECT.
0. y will be displayed. The number
0 stands for cutoff register #0 and y is the current value in register 0. The decimal after the number 0 tells you that this is a setpoint cutoff. Without the decimal it means this cutoff is an ingredient cutoff.
3. You can
A. enter a new value in this cutoff register or
B. look at the next cutoff register.
A. Key in the new value. Press
TARE/+/- to toggle the value between positive and negative, then press MENU to accept the value and scroll to the next cutoff register.
The new value is accepted and
1. y is displayed. The number 1 stands for cutoff register #1 and y is the current value in register #1.
B. Press MENU to scroll to the next cutoff register.
4. Key in a new value as you did in step #3.
When you are finished viewing and changing values, press
PRINT/SELECT to return to the operations mode menu.
1. y is displayed.
CUTOFFS is displayed.
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Controlling Cutoffs
The WI-150 Indicator allows you to control the cutoff process from the front panel. Through the WI-150 you may: enable/disable the cutoff process, continue or interrupt the operation of a cutoff before its setpoint has been reached, and/or terminate the process at any time before the last cutoff has been reached.
To Access the Control
Function
Cutoff values (positive or negative) must be entered before you can control them.
1. From Gross/Net Weighing Mode, press MENU one time. . .
Control is displayed.
2. With Control displayed, press
SELECT. . .
HALtEd is displayed.
To Activate and Control the Cutoffs
There are two ways--Methods A or B--to activate the cutoffs. Method A activates the cutoffs immediately while displaying the changing weight on the scale, and Method B allows you to view the weight on the scale before the cutoffs are activated.
Method A:
1. With HALtEd displayed, press
MENU. . .
run is displayed.
2. Press SELECT. . .
r xxxxxx is displayed. xxxxxx represents the weight as it changes on the scale.
Method B:
1. With HALtEd displayed, press
SELECT...
2. Press MENU....
h xxxxxx is displayed. xxxxxx represents the weight on the scale.
r xxxxxx is displayed. xxxxxx represents the weight as it changes on the scale.
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WI-150 Ultra Low-Power Weight Indicator User's Manual
To halt active cutoffs
You may halt an active cutoff at any time.
With r xxxxxx displayed, press any key. . .
h xxxxxx is displayed and cutoffs are halted.
To return to Gross/Net
Weighing Mode
You may return to G/N Weighing
Mode at any time during this process by pressing GROSS/NET...
Display returns to G/N Weighing
Mode.
Viewing and Setting
Time (Option)
If you enter an incorrect digit, press the ZERO/CLEAR key to clear the display one digit at a time.
Your indicator must have the optional Fiber Optics Interface Card and be configured to allow the following . . .
1. From gross/net weighing mode, press MENU repeatedly until . . . . HOUR is displayed.
2. Press PRINT/SELECT.
In the 12 hour clock configuration you will see time displayed as hours, minutes and A for A.M. or P for P.M.
(09 40 A). In the 24 hour clock you will see hours, minutes and seconds
(09 40 38).
3. To set the 12 hour clock, key in new hours, minutes, and press
TARE/+/- key to toggle A.M.
and P.M.
To set the 24 hour clock, key in new hours, minutes, and seconds.
After the clock is set, press
PRINT/SELECT to start the clock and return to operations mode menu, HOUR is displayed and the clock begins at the new time setting.
or press GROSS/NET to return to gross/net weighing mode.
Display returns to gross/net mode and the clock begins at the new time setting.
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Viewing and Setting the Date (Option)
If you enter an incorrect digit, press the ZERO/CLEAR key to clear the display one digit at a time.
Your indicator must have the optional Fiber Optics Interface Card and be configured to allow the following . . .
1. From gross/net weighing mode, press MENU repeatedly until . . .
DAY is displayed.
Depending on the configuration of your indicator you will see the date displayed in one of three ways:
• month-day-year, or
• day-month-year,
• year-month-day.
2. Press PRINT/SELECT.
3. To change the date, key in the new data.
4. Press PRINT/SELECT to return to the operations mode menu The date is accepted and DAY is displayed.
or press GROSS/NET to return to gross/net weighing mode.
The date is accepted and the display returns to gross/net mode.
Transmitting Data
Your indicator is capable of sending and receiving serial data via an optional
Fiber Optics Interface Card to an optional Fiber-Link fiber optics converter.
If your indicator contains this option and is configured to allow printing, from the gross/net weighing mode press the PRINT/SELECT key.
The PRINT annunciator (See Figure
2) will illuminate while data is transmitted and the data configured to be printed will be output to the printer. See Figure 4 for a sample printout.
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WI-150 Ultra Low-Power Weight Indicator User's Manual
Communication Protocol
Figure 4
Sample WI-150 Printout
A new WI-150 indicator attached to an empty scale and a compatible printer will print the following:
An enquire code can be sent to the AC/DC powered version of the WI-150.
This will prompt the indicator to send a standard printout. The default enquire code number is an ASCII decimal 005. This number can be changed in configuration.
The default settings for serial output are:
Baud
Parity
Stops
1200
Clear
1
WI-150 Ultra Low-Power Weight Indicator User's Manual
19
Indicator Diagnostics
Test Mode
The test mode is used to test various functions of the WI-150. The test menu is shown in Figure 5. Instructions for using the test menu are found below.
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Figure 5
Test Menu
1. Enter the test mode from gross/net operation by pressing and holding the MENU key until TEST is displayed. SEALED or UNSEALED is displayed briefly while you hold the key.
2. Move to the right through the menu selections by pressing MENU briefly. Move to the left through the menu selections by pressing MENU for 1 second or hold down for continuous scrolling.
WI-150 Ultra Low-Power Weight Indicator User's Manual
3. To move down a level in the hierarchy, press PRINT/SELECT. Anytime you wish to get to the next higher level in the hierarchy, press and hold
PRINT/SELECT for approximately 1.5 seconds or press PRINT/SE-
LECT whenever END is displayed.
4. Press MENU to toggle between choices.
5. Press GROSS/NET to return to gross/net operation at any time.
Below are the specific directions and explanations for the items you see in the test menu:
VERSION — Under version are the Weigh-Tronix part number and revision number for the software found in your indicator.
Weigh-Tronix part numbers are divided into two parts: the prefix and the dash number with revision letter(s).
DISPLAY —
BUTTONS —
With DISPLAY displayed, press PRINT/SELECT and the top row of annunciators turns on. Press PRINT/
SELECT again and a dynamic test is run. Press MENU to stop the dynamic test or consecutively press MENU to step through the display test routine. Press PRINT/
SELECT when the dynamic test is active to return the unit to DISPLAY.
With BUTTONS displayed, press PRINT/SELECT and an underscore will appear on the screen. Press any key, except MENU, ON, or OFF keys, to check for proper key functioning. After testing the buttons, press MENU to return to the BUTTONS display.
BATTERY —
A to D —
SERIAL —
Battery voltage is displayed in tenths of a volt. In the battery pack version, the LOW BAT annunciator comes on when the voltage reaches approximately 7.3 volts.
Displays the analog to digital counts. The span is normally 20000 counts per millivolt per volt. With a calibrator at zero millivolts per volt, the displayed value should be between -200 and +200.
Allows you to test the serial port. READY will be displayed. Pressing the MENU key puts LOOP or NO
LOOP on the display. With pins 2 and 3 connected on the interface box, LOOP is displayed. With them disconnected, NO LOOP is displayed. The fiber optics cables from the indicator may be butted together and
LOOP will be displayed.
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21
Appendix A: Battery Life
22
30
40
50
60
10
20
0
5
70
80
90
100
80
90
100
50
60
70
20
30
40
0
5
10
1
671
584
517
464
421
385
2600
2019
1651
1209
954
788
2
Number of Weight Sensors
612
531
468
419
380
347
2600
1962
1576
1130
881
722
3
565
489
430
385
348
317
2600
1912
1512
1066
823
670
4
531
458
402
359
324
295
2600
1871
1461
1016
778
631
6
468
402
353
314
283
257
2600
1787
1361
922
697
560
Battery Life in Hours for WI-150 without SC-150
1 2
Number of Weight Sensors
3 4 6
446
349
287
244
2600
1440
996
616
219
187
168
152
429
336
276
234
2600
1411
968
595
203
180
161
146
415
324
266
225
2600
1385
944
576
196
173
155
140
403
315
258
219
2600
1363
924
562
190
168
150
136
Battery Life in Hours for WI-150 with SC-150
WI-150 Ultra Low-Power Weight Indicator User's Manual
384
296
242
205
2600
1318
883
532
178
157
141
127
8
365
284
232
196
2600
1287
855
512
170
150
134
121
8
432
370
324
287
259
235
2600
1730
1297
864
648
518
Declaration of Conformance to SMA Standard
Year of Declaration 2002
Production Meets Type
® *
We the manufacturer of
Model
WI-150
Type
Electronic Indicator
Certificate and Number
NTEP CC 92-206
Issued by
NCWM
Declare in our responsibility the conformance of the above listed models and types to the mentioned certificates and the requirements of the SMA standard.
This declaration becomes valid when the SMA Conformance Logo, having our name or trademark is applied to the device or its accompanying documentation.
* SMA PRODUCTION MEETS TYPE DEVICE MANUFACTURER Conformance Logo and Design are a registered trademark of the Scale Manufacturers Association
WI-150 Ultra Low-Power Weight Indicator User's Manual
23
Weigh Bar
®
is a registered trademark of Weigh-Tronix Inc.
Avery Weigh-Tronix USA
1000 Armstrong Dr.
Fairmont, MN 56031 USA
Telephone: 507-238-4461
Facsimile: 507-238-4195 e-mail: [email protected]
www.wtxweb.com
Avery Weigh-Tronix UK
Foundry Lane
Smethwick, West Midlands
England B66 2LP
Tel: +44 870 90 34343
Fax: +44 121 224 8183
Email: [email protected]
Web site:www.averyweigh-tronix.com
Avery Weigh-Tronix Canada, ULC
217 Brunswick Boulevard
Pointe Claire, QC H9R 4R7 Canada
Telephone: 514-695-0380
Toll free: 800-561-9461
Facsimile: 514-695-6820 www.weigh-tronix.ca
