INTRODUCTION TO THE FI-80 SERIES DIGITAL INDICATORS
The FI-80 Series Digital Indicator is a general purpose, industrial grade force indicator. Two models are
available with different display types and power supply.
MODEL DISPLAY TYPE POWER SOURCE
FI-80 LED Light Emitting Diode (LED) 110/220 VAC, 50/60 Hz
FI-80 LCD Liquid Crystal Display (LCD) Internal 6V battery with 12 VDC 800 ma charger
The LCD model contains a 6V rechargeable battery as the primary power source. The external power
supply with these units functions as a charger for the rechargeable battery and may also be used as the
main power supply.
The FI-80 is commonly outfitted at the factory with a load cell, hardware accessories and serial cable to fit
your specific requirements. It is calibrated and is ready for installation into your application. Alternatively,
your reselling distributor may have equipped this indicator for use with a particular load cell and calibrated
the system together. Confirm that a certificate of calibration is on hand for the FI-80 Indicator and load
cell combination. Prior to installation, you should view and record the calibration values in your FI-80.
This is found at the end of the SETUP section.
Please read this manual carefully and completely prior to using the indicator. Store the manual in a safe
and convenient place so it will be available if you have questions concerning the operation of your
system.
INSTALLATION
INSTALLING THE LOAD CELL
Install the load cell according to your specific equipment and application. Set-up will vary
between systems. Some things to keep in mind for best measurement performance
1. Insert the load cell fully in-line with the tensile or compressive force axis. Off center
loading may result in measurement errors.
2. Allow for movement and relief of undesired loads.
a. Compression load cells typically have one load cell end fixed in all directions
and the other end uses a load button or ball bearing to apply a single point load
that is free of undesired bending and torque loads.
b. Tension load cells are often not rigidly affixed to surfaces. In this arrangement it
becomes self aligning under load. Two convex surfaces contacting each other
offers good immunity from undesired bending loads and a limited range of
torque loads. An example is a lifting eye suspended from a shackle bolt.
CONNECTING THE POWER SUPPLY
The FI-80 LED indicator includes a hardwired AC line cord. Simply plug the unit into a
standard wall outlet.
The FI-80 LCD indicators ship with the rechargeable battery pre-installed. The external
power supply (included) can also be used to power the indicator. The adapter acts as the
battery charger and the FI-80 LCD must use a 12 VDC, 800 mA adapter.
1. Simply plug the AC adapter into the indicator’s DC Power Jack first, and then plug into a
standard wall outlet. Make sure that the AC voltage appearing at the wall outlet
3
matches the input voltage marked on the AC adapter.
OPERATION
D ISPLAY
The two display types are 6 digit LCD (Liquid Crystal Display) and 6-digit LED (Light Emitting Diode)
display. Typically, LCD’s are used for outdoor applications while LED’s are used indoors where
brightness is needed. Table 7-1 summarizes both types of display annunciators.
LIQUID CRYSTAL DISPLAY (LCD)
LIGHT EMITTING DIODE (LED) DISPLAY
FI-80 LCD Detail
LCD
Annunciator
LED
Annunciator
0 ZERO
N NET
G GROSS
P PEAK
T TARE
lb, kg lb, kg
STABLE
TABLE 7-1: FI-80 Series Annunciator Definitions
FI-80 LED Display Detail
MEANING
Better known as the “Center of Zero” annunciator, this light is active
whenever the displayed load is within ± 0.25 divisions of true zero.
The FI-80 is displaying net load.
The FI-80 is displaying gross load.
The FI-80 is displaying peak load.
A tare load has been saved.
The active unit of measure.
Appears whenever the load is stable.
FRONT PANELS
FUNCTION KEYS
PEAK – Toggles the indicator between normal live display mode and peak hold mode (Setup
ZERO - Sets the FI-80 to display “0” provided the following conditions are met:
1. The FI-80 is displaying Gross load.
2. The displayed load is within the zero reset range (F4 in setup).
3. The load is not in motion (F5 in setup).
4 . The FI-80 is not in overload (see Appendix D for error codes).
LED version front panel
LCD version front panel
5 must be set at “0” on the LCD version). A
NET/GROSS - Toggles the indicator between Gross load and Net load only if a Tare has
een established. b
TARE - Establishes a Tare provided the following conditions are met:
1. The reading is not at or below Gross zero.
2. The load is not in motion.
3. The FI-80 is not in overload (see Appendix D for error codes).
PRINT - Sends display reading through the serial port when the following conditions are met:
1. The display is not changing.
2. The FI-80 is not in overload (see Appendix D for error codes).
See Appendix B for connection and print format details.
UNITS – (LCD model only) Toggles the indicator between lb and kg if enabled (A5 at “1”)
and peak hold is not configured (A11 at “0”). In any other conditions, the FI-80 LCD will
isplay only the default unit of measure. d
O FF – (LCD model only) When held for five seconds, shuts the unit off.
ON – (LCD model only) Turns the FI-80 on.
GENERAL OPERATION
DISPLAYING LOAD
TARING AN ITEM
PEAK HOLD
1. Select the desired unit by pressing the lb/kg key until that unit is indicated on the display.
2. Press the ZERO key to obtain a load reading of zero when necessary,.
3. Place the object to be weighed on the scale’s platter and allow the load indication to
stabilize. If the item load exceeds the load cell capacity, it displays “SSSSSS”.
4. Read the load shown on the display.
To weigh an item in a container, the weight of that container must first be subtracted from
the overall weight to obtain an accurate weight reading. This is known as taring.
1. Select the desired weighing unit by pressing the lb/kg key until that unit is indicated on
the display.
2. If necessary, press the ZERO key to obtain a weight reading of zero.
3. Place the empty container on the scale’s platter and allow the weight indication to
stabilize.
4. Press the TARE key. The display shows zero weight and turns the NET annunciator on.
5. Place the material to be weighed in the container and allow the weight indication to
stabilize.
6. Read the weight shown on the display.
7. You may toggle between the gross weight and the net weight by pressing the
NET/GROSS key.
Overview
1. The indicator has two modes of operation: NORMAL OPERATING mode and PEAK-HOLD mode.
2. Press the PEAK key to toggle the indicator back and forth between NORMAL OPERATING mode
and PEAK-HOLD mode. (Peak Hold mode must be enabled in the FI-80 LCD – see
Normal Operating Mode
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