Description
F350 is a digital indicator that is capable of two-channel inputs of strain gauge type sensors. Equipped with calculation functions, such as ch1+ch2, ch1-ch2, F350 is ideal for total, difference, balance and other load measurements.
2 ch inputs
Calculation and judgment outputs can be made for 2 ch input values of strain gauge type sensors. Calculated value is displayed on the main display, and ch1 and ch2 input values are displayed on the sub display.
Calculation functions
● ch1 + ch2: The ch1 value and ch2 value are added.
● ch1 – ch2: The ch2 value is subtracted from the ch1 value.
● |ch1 – ch2|: The absolute value of the difference between the ch1 value and ch2 value is calculated.
● High select: The ch1 value or ch2 value, whichever is larger, is selected.
● Low select: The ch1 value or ch2 value, whichever is smaller, is selected.
9 points of judgment outputs are equipped
● Calculation value: HI, OK, LO
● ch1 value: HI, LO, Alarm output
● ch2 value: HI, LO, Alarm output
Sampling speed as high as 3000 times/sec. on each channel
Including the high-speed CPU that allows processing from sensor inputs to outputs at 3000 times/sec., F350 captures necessary points reliably. (The speed can be switched to 300 times/sec.)
Digital zero & digital offset
The indicated value can be zeroed by key operation. F350 is also equipped with the function of subtracting a set value from the indicated value. This function is convenient in the case where a no-load condition cannot be set up or for offsetting.
Analog monitor output
Voltage in proportion to the input signal, which is useful for recording with a recorder, etc., can be output on each channel.
HI/LO limit comparison function with hysteresis
Timing at which HI/LO limit comparison is made can be provided with a margin. This function is effective to prevent chattering, etc..
HI and LO limit output time chart (calculated value) Only HI and LO outputs are made on ch1 and ch2.
Hold functions
F350 is equipped with hold functions of calculated values (Sample, Peak, Bottom, Average). Section setting can also be made by external signal.
Example 1) Sample hold
Example 2) All section peak hold
Example 3) Externally specified section average hold
Application examples
Load and pressure are controlled at high speed with high accuracy.
Specifications
Analog Section
| Number of sensor inputs | 2 inputs (strain gauge input) |
| Excitation voltage | DC 10 V, 2.5 V ±5% (depending on settings), Output current: within 60 mA (2 channels total) |
| Signal input range | -3.0 to +3.0 mV/V |
| Accuracy | Non-linearity: within 0.02% FS ±1 digit (at 3.0 mV/V input) Zero drift: within 0.5 μV/℃ RTI Gain drift: within 0.01%/℃ |
| A/D converter | Speed: 3000 or 300 times/sec. selectable Resolution: 24 bits (binary), Approx. 1/10000 for 1 mV/V |
| Analog filter | Low pass filter (-6 dB/oct.), selectable at 3 Hz, 30 Hz, 300 Hz, 1 kHz |
| Analog monitor output | Approx. 2 V per 1 mV/V strain gauge input, Load resistance: 2 kΩ or more |
Display Section
| Main display | Character height 15 mm, 6-digit 7-segment green LED |
| Sub display | Character height 8 mm, 5-digit 7-segment green LED |
| Indicated value | Main: -99999 to +99999 Sub: -19999 to +19999 Minus sign on most significant digit |
| Display frequency | Selectable from 3, 6, 13 and 25 times/sec. |
| Status display | HI/ OK/ LO/ PEAK/ HOLD/ HI(ch1)/ LO(ch1)/ HI(ch2)/ LO(ch2) |
Setting Section
| Work setting (comparison) | Calculated value HI/LO limit, ch1/ch2 HI/LO limit |
| Work setting (comparison/hold) | Comparison function select, Near zero, Hysteresis, Calculation hold function select, Detection time, Average sample number |
| System setting (calculation/common) | MD/SI/F function select, Display frequency |
| System setting (ch operation) | Digital filter, Analog filter, ZT, D/Z sync mode, A/D speed |
| Calibration setting | Calibration function select, Zero calibration, Equivalent input/Actual load calibration, Digital offset, Digital zero limit, Alarm HI/LO limit |
| System setting (BCO option) | Output data select, Output rate, BCD/binary select |
| System setting (232 option) | Communication mode/condition, Delimiter |
| System setting (DAV/DAI option) | Output data select, Zero/Full scale value |
| Protect/Initialize | Setting protect, Key protect, Initialize, Password |
| Hold section | Sample, Peak, Bottom, Average (with external signal and time setting) |
External Signal
| External output signal (11) | HI/LO (calc, ch1, ch2), Alarm (ch1/ch2), Hold complete, RUN; Open collector (sink type), Vceo = 30 V (max), Ic = 30 mA (max) |
| External input signal (4) | Hold section control, Hold release, Digital zero 1/2; Dry contact input, Ic = 10 mA or less |
Interface (Only one option)
| SIF | 2-wire serial interface |
| BCO | BCD parallel output |
| D3V | D/A converter voltage output (3 ch) |
| DAV | D/A converter voltage output |
| DAI | D/A converter current output |
| 232 | RS-232C communication |
General Specifications
| Power supply | AC 100–240 V ±10%/-15% (50/60 Hz) |
| Power consumption | 6 W typical |
| Operating conditions | Temp: -10 to +40℃; Storage: -40 to +80℃; Humidity: ≤85% RH (non-condensing) |
| Dimensions | 96(W) × 96(H) × 138(D) mm (excluding projections) |
| Weight | Approx. 1.0 kg |
| Certifications | EMC: EN61326-1; Safety: EN61010-1, EN62311 |
Attachments
| AC input cord (125 V, 3 m) | 1 |
| 3P-2P converter plug | 1 |
| FCN I/O connector (with cover) | 1 |
| Ferrite core | 2 |
| Operation manual | 1 |
| BCD output connector (if selected) | 1 |
| Operating tool (if D/A 3ch selected) | 1 |
| Mini screwdriver (if D/A option selected) | 1 |
| Analog I/O terminal block (mounted) | 1 |
Optional Accessories
| CA372-I/O | FCN cable 3 m |
| CA325AC3P-B3 | AC cord 3 m |
| CA325AC3P-CEE7/7-B2 | AC cord 2 m (250 V) |
| CN3P-2P | 3P-2P converter (same as attachment) |
| CN34 | D-Sub9p RS-232C connector |
| CN50 | FCN I/O connector (same as attachment) |
| CN51 | BCD output connector |
| CN55 | FCN I/O with diagonal cover |
| CN73 | D/A (3 ch) connector |
| CN81 | Analog I/O terminal block (same as attachment) |
| DTC2-PSL | Case for F350 |
| GMP96×96 | Rubber packing |
| TSU01 | DC Lighting surge unit |
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