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FORCE MEASUREMENT EQUIPMENT

FI-521 LED Load Cell Indicator

The FI-521 is a bi-directional load cell instrument accepting both positive and negative
load cell signals, internally performing the analog to digital conversion at 80 times
per second. The FI-521 Indicator features an IP65 stainless steel enclosure for reliable
performance in wet or dusty environments. Included swivel mounting bracket allows
for wall or bench mounting. Watertight connections include the AC power cable,
seven pin load cell quick disconnect cable connector and three additional cable ports.
The instrument’s six key front panel enables all setup, configuration and calibration
procedures. FI-521’s calibration procedures include a multi-point calibration feature for
correcting the performance of non-linear load cells. The indicator has memory to store
calibration information for up to three load cells.
The FI-521 can store peak and first peak values at 80 Hz. Operators can track stored
data using date/time information and a six digit ID number. The stored data can then
be printed or sent to a PC or other device using programmable print and data output
formats. The FI-521’s four logic level inputs and the bi-directional serial port can receive
control commands from external devices. The instrument can control external devices
Key Features:
via any of the two standard cutoff outputs. The FI-521 has an analog output that is fully
• Three cell memory calibrated for 0 to 2.5 VDC.
• 80 Hz peak capture rate
• IP65
• Two RS-232 serial ports
• RS-485
• Five point curve linearization
• Built-in real time and date clock
• Units of measure: kgf, lbf, Newton
• Two set point outputs
• Seven pin load cell quick disconnect (equipped)
• Four remote keypad inputs
• Analog output

Specifications Combine several load cells together and see their total output with a load cell summing box Load Cells & Indicators

Power supply: Input 100 - 240 VAC, 50 - 60Hz internal mounted power Analog Circuit Characters
supply with output of 12VDC at 2 amps 24-bit A/D converter
Display: Seven digits, seven segment, 0.7” (17 mm) ultra-bright LEDs A/D Conversion Speed: Peak Force 80Hz; Live Force 10Hz
with 14 annunciators. Max display range -999,999 to 999,999. Display A/D Conversion: 1mV input will output 100,000 raw counts.
update rate 10Hz. Hardware: low pass filter and two programmable digital low
pass filters
Keypad: Six push buttons; select, cell, print, unit, zero, on/off Max Display Range: -999,999 to 999,999
Environment Division Number Range: 100,000 divisions
Working Temperature: -10° C to 40° C (14° F to 104° F) Real Clock: Built-in nonvolatile real time & date
Storage Temperature: -20° C to 70° C (-4° F to 158° F)
Humidity: 10 to 90% RH without condensation Other Main Functions
Protection: IP65 Programmable zero range
Load Cell Drive Capacities Programmable automatic zero point tracking
Programmable motion detection window
Excitation Voltage: 5VDC Programmable auto-power off time
Capacity: Drives up to eight 350-ohm load cells Adjustable LED brightness
Signal Connection: Four or six lead load cells Units of Measure: kgf, lbf, Newton
Load Cell Input Range: -15mV to +15mV Configurable serial output content
Max Load Cell Output: 3mV/V Two set point output with two data comparison points
Communication Product Codes
Serial Port 1: Full-duplex RS-232 AWT05-506170 - US Version
Serial Port 2: Full-duplex RS-232 or half-duplex RS-485 AWT05-506171 - EU Version
Baud Rate: Selectable 1200-2400-4800-9600- AWT05-506172 - UK Version
19200/38400-57600 bps
Data Output Format: 8N1, 7O1, 7E1 Options
Serial Output: Select up to 14 additional data parameters PCs, printers, remote displays
RS-485: 0-5VDC
Analog Output: 0 to 2.5VDC (≤ 2.5mA)
Remote Input: Select,cell, print, unit, zero, off
Setpoint 1 & 2: 5 to 24VDC (.5A max) external,
5 to 8VDC (≤ .1A) internal
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