Unipulse F370 Operation Manual
F370
DIGITAL INDICATOR
OPERATION MANUAL
20 Jul. 2011
Rev. 1.19
Cautions and Requests for Use
● Do not disassemble the main body for modifications or repair.
● Be sure to use crimp contacts for connection to terminal blocks, and do not to
connect bare wires as they are.
● Be sure to ground the protective ground terminal.
● Be sure to disconnect the power cable when performing the following.
- Attachment/detachment of connectors of options.
- Wiring/connection of cables to terminal blocks.
- Connection of the ground line.
Cautions and Requests for Use
● Carefully check wiring, etc. before applying power.
● Take an interval of more than 5 seconds when repeating ON/OFF.
● Take adequate shielding measures when using at the following locations.
- Near a power line.
- Where a strong electric field or magnetic field is formed.
- Where static electricity, relay noise or the like is generated.
● Do not install in the following environments.
- Placeｓ exposed to direct sunlight.
- Where the temperature and/or humidity exceeds the range in the
specifications.
- Placeｓ containing corrosive gas or flammable gas.
- Placeｓ with large quantities of dust, salt or iron powder.
- Where the product may be splashed with water, oil or chemicals.
- Where the main body is directly affected by vibration or shock.
● Set the correct Excitation Voltage for the sensor. （2.5V is set when F370 is
dispatched from us.）
Safety Precautions
WARNING
Misuse may cause the risk of death or serious
injury to persons.
Misuse may cause the risk of injury to persons or
damage to property.
CAUTION
Safety Precautions
● Indications for safe use and their meanings
In this manual, precautions for using the F370 digital indicator safely are indicated as
follows. Be sure to follow the precautions given here because they are important
descriptions relating to safety.
Indications and their meanings are as follows:
● Explanation of pictographs
The △ means a caution (or warning).
A specific description is written in the △ .
The illustration on the left-hand side shows "Caution: May explode".
The △ means a caution (or warning).
A specific description is written in the △ .
The illustration on the left-hand side shows a general caution.
● About the built-in lithium battery
Never disassemble, deform under pressure or throw the battery
into fire.The battery may explode, catch fire or leak.
- Battery
Model: CR2477-1HF made by Matsushita Battery Industrial Co., Ltd.
Nominal voltage: 3V
Nominal electric capacity: 1000mAh
WARNING
For connection to the signal I/O terminal block, wire correctly after
checking the signal names and terminal block numbers.
Also, turn off the power of the main body before connection/wiring to the
signal I/O terminal block.
CAUTION
Safety Precautions
● About the signal I/O terminal block
CONTENTS
CONTENTS
1．APPEARANCE DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . .1
1-1．Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1-1-1．Touch Panel Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1-2．Power Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-2．Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1-2-1．Signal I/O Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2-2．AC Power Source Input Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-2-3．Frame Ground (Functional ground) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-2-4．Optional Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2．SETTING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2-1．F370 Screen Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2-2．Setting Modes Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2-3．About a Setting Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3．CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3-1．Connection with Power Source Input Terminal . . . . . . . . . . . . . . . . .9
3-2．Load Cell Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3-3．SI/F Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3-4．External I/O Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3-4-1．External Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3-4-2．External Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3-4-3．Connecting to Cage Clamp Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4．CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4-1．Equivalent Input Calibration Procedure . . . . . . . . . . . . . . . . . . . . . .15
4-2．Actual Load Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . .16
4-3．Zero Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
4-4．Actual Load Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
CONTENTS
4-5．Equivalent Input Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
4-6．Digital Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
4-7．Increment (This step may be omitted if there is no change.) . . . . . .22
4-8．Decimal Place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
4-9．Calibration Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
4-10．Calibration Value Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
4-11．Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5．SETTING OF FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5-1．Digital Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5-2．Digital Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
5-3．Analog Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
5-4．Display Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
5-5．Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5-6．Zero Track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
5-7．Contrast Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
5-8．Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
5-9．Excitation Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
5-10．Auto Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
5-11．Hold Off Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
5-12．Parameter Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
6．COMPARISON FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . .37
6-1．HI Limit/LO Limit/HI-HI Limit/LO-LO Limit . . . . . . . . . . . . . . . . . . . .38
6-2．Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
6-3．Near Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
6-4．HI-LO Limit Comparison Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
6-5．HI-LO Limit Output Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
6-6．Alarm Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
CONTENTS
7．HOLD FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
7-1．Hold Setting --- common --- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
7-1-1．Hold Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7-1-2．Hold Detection Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7-1-3．Auto Start Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7-1-4．Hold Point Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7-2．Hold Setting --- relative maximum and relative minimum --- . . . . .47
7-2-1．Minimum Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7-2-2．Valley Detection Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7-3．Hold Setting --- inflection point --- . . . . . . . . . . . . . . . . . . . . . . . . .49
7-3-1．Minimum Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7-3-2．Interval A and Interval B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7-4．Hold Setting --- mean value --- . . . . . . . . . . . . . . . . . . . . . . . . . . .52
7-4-1．Mean Value Sampling Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
7-5．Hold Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
7-5-1．Sample Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7-5-2．Peak Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7-5-3．Valley Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
7-5-4．Peak-to-Peak (P-P) Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7-5-5．Relative Maximum and Relative Minimum Hold . . . . . . . . . . . . . . . . . . . . . . . 57
7-5-6．Inflection Point Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
7-5-7．Mean Value Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7-6．How to Specify the Hold Detection Period . . . . . . . . . . . . . . . . . . . .61
7-6-1．All Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7-6-2．Externally Specified Period Hold
(Peak, Valley, Peak-to-Peak and Mean Value) . . . . . . . . . . . . . . . . . . . . . . . 62
7-6-3．Time Specified Period Hold
(Peak, Valley, Peak-to-Peak and Mean Value) . . . . . . . . . . . . . . . . . . . . . . . 63
7-6-4．Time Specified Period Hold with Trigger
(Peak, Valley, Peak-to-Peak and Mean Value) . . . . . . . . . . . . . . . . . . . . . . . 64
8．MULTI-HOLD FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
8-1．About Changing of the Setting CH . . . . . . . . . . . . . . . . . . . . . . . . . .66
CONTENTS
9．WAVEFORM DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
9-1．Graphic Display Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
9-1-1．Hold Point Plotting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
9-1-2．X-axis and Y-axis on the Graph Plotting Screen . . . . . . . . . . . . . . . . . . . . . . 68
9-2．Graph Plotting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
9-2-1．Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
9-2-2．External . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
9-2-3．Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9-2-4．External + Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9-3．Graph Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
9-4．Interval Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
9-5．Graph Start Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
9-6．Level Detection Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
9-7．X Start Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
9-8．Y (Load) Start Point and Y (Load) End Point . . . . . . . . . . . . . . . . . .74
10．BCD DATA OUTPUT(OPTION) . . . . . . . . . . . . . . . . . . . . . . .75
10-1．Connector Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
10-2．Logic Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
10-3．BCD Data Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
10-4．Equivalent Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
10-5．Signal Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
10-6．BCD Data Update Rate Selection . . . . . . . . . . . . . . . . . . . . . . . . .78
10-7．BCD Output Data Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
11．RS-232C INTERFACE(OPTION) . . . . . . . . . . . . . . . . . . . . . .79
11-1．Communication Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
11-1-1．Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
11-1-2．Connector Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
11-1-3．Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
CONTENTS
11-2．RS-232C Interface Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
11-2-1．Communication Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
11-2-2．Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
11-2-3．Character Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
11-2-4．Parity Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
11-2-5．Stop Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
11-2-6．Terminator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
11-3．Communication Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
11-4．Communication Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
12．RS-485 COMMUNICATION INTERFACE(OPTION) . . . . . . .90
12-1．Communication Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
12-2．RS-485 connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
12-3．Communication Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
12-4．RS-485 Interface Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
12-4-1．ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
12-4-2．Terminator Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
12-4-3．Communication Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
13．D/A CONVERTER(OPTION) . . . . . . . . . . . . . . . . . . . . . . . . .95
13-1．Voltage Zero and Full Scale, Current Zero and Full Scale . . . . . .96
13-2．D/A Output Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
13-3．Voltage Output Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
13-4．Current Output Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
14．DC POWER SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
15．ERROR MESSAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
CONTENTS
16．SELF-CHECK AND INITIALIZATION . . . . . . . . . . . . . . . . .101
16-1．Self-Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
16-1-1．Self-Check DSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
16-1-2．Self-Check MEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
16-1-3．Self-Check KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
16-1-4．Self-Check EXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
16-2．Initialization (All setting value clearances) . . . . . . . . . . . . . . . . . .103
16-3．Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
17．ABOUT JAPANESE/ENGLISH DISPLAY SELECTION . . .104
18．BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
19．DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106
20．INSTALLATION IN A PANEL . . . . . . . . . . . . . . . . . . . . . . .107
21．SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
21-1．Analog Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
21-2．Digital Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
21-3．Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
21-4．External Input and Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
21-5．General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
21-6．Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
22．SETTING ITEM CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
23．CONFORMITY TO EC DIRECTIVES . . . . . . . . . . . . . . . . . .117
CONTENTS
1. APPEARANCE DESCRIPTION
Touch Panel
Display
Power Lamp
Hold Status Display
Display Change Button
Comparison Status
Indicated Value
Setting Input Screen
Call Button
Digital Zero
Button
Setting Mode
Button
Display
Display
Comparison Display Hold Display Graph Display
1-1. Front Panel
1.APPEARANCE DESCRIPTION
1-1-1. Touch Panel Display
This is the touch panel display for displaying an indicated value and graph set value and
for setting various setting items of the F370. During measurement, a comparison display,
hold display and graph display can be selected according to the function in use.
1-1-2. Power Lamp
This lamp lights when the power to the F370 is on.
1
1.APPEARANCE DESCRIPTION
Frame ground
Signal I/O terminal
Optional slot
AC power source
input terminal block
block
1-2. Rear Panel
1-2-1. Signal I/O Terminal Block
D/Z In A11 B11 SIF Out
H/M In A10 B10 SIF Out
T/H In A9 B9 ST/SP In
CODE2 In A8 B8 CODE3 In
CODE0 In A7 B7 CODE1 In
COM2
※
HH Out A5 B5 LL Out
HI Out A4 B4 LO Out
COM1
※
-EXC Out A2 B2 -SIG In
Pin assignments
A6 B6 H/E Out
A3 B3 OK Out
2
+EXC Out A1 B1 +SIG In
1.APPEARANCE DESCRIPTION
「COMPARISON
FUNCTIONS」
→
page 37
The input for controlling the hold signal.
→ page44「HOLD FUNCTIONS」
Caution
Use TMEV1.25-3S crimp contacts (attached) made by NTM or
equivalent for connection to the signal I/O terminal block and the
AC power source input terminal block.
+EXC
-EXC
+SIG
-SIG
See the section on Load Cell Connection page 10 for connection.
COM1 The terminal common to output signals.
OK
HI
LO
HH
LL
H/E Outputs the hold end signal.
See the section on External I/O Connection page 12 for connection.
COM2 The terminal common to input signals.
CODE0
CODE1
CODE2
CODE3
The terminal for connecting to a strain-gage sensor.
Outputs the OK signal.
Outputs the HI signal.
Outputs the LO signal.
Outputs the HH signal.
Outputs the LL signal.
→ page44「HOLD FUNCTIONS」
Selects the CH No. for the multi-hold function.
→ page65「MULTI-HOLD FUNCTION」
T/H
H/M
D/Z The input for digital zero (making the indicated value zero).
→ page28「Digital Zero」
ST/SP The graphic display start/stop signal.
→ page69「Graph Plotting」
See the section on External I/O Connection page 12 for connection.
SI/F The 2-wire serial interface for coupling a UNIPULSE printer,
external display, etc.
See the section on SI/F Connection page 11 for connection.
3
1.APPEARANCE DESCRIPTION
1-2-2. AC Power Source Input Terminal Block
Connect the AC power cord. The input voltage is 100V - 240V AC, and the frequency is
50/60Hz.
1-2-3. Frame Ground (Functional ground)
This is a ground terminal block. Be sure to ground the F.G. terminal to prevent electric
shocks and failures due to static electricity.
1-2-4. Optional Slot
Any one of the following optional boards can be mounted.
• BCD data output
• RS-232C communication interface
• D/A converter
• RS-485
• CC-Link interface
(CC-Link is an abbreviation for "Control & Communication Link".)
• Device Net interface
4
2. SETTING MODES
HOME
MODE
UP
Mode keys
Setting keys
HOME
HOME
Set value entry from
the ordinary display screen
UP
[Ordinary display screen]
[Mode selection screen]
[Set value selection screen]
[Set value entry screen]
With the NEXT key on the set value entry screen, the next set value entry screen appears.
2-1. F370 Screen Configuration
2.SETTING MODES
5
2.SETTING MODES
ordinary display screen
Mode selection screen
OPERATION
PAGE1
Digital Filter (P29)
Analog Filter (P30)
Display Rate (P30)
Stability (Time) (P31)
Stability (Cnt) (P31)
PAGE2
Zero Track (Time) (P31)
Zero Track (Cnt) (P31)
Contrast1 (P33)
Contrast2 (P33)
Backlight (P33)
PAGE3
Ext Voltage (P33)
Auto Print (P34)
Hold Off Print (P36)
CAL. LOCK (P24)
PARA. LOCK (P36)
COMPARISON
PAGE1
HI_HI Limit (P38)
HI Limit (P38)
LO Limit (P38)
LO_LO Limit (P38)
Hysteresis (P39)
PAGE2
Near Zero (P41)
Comparison Func (P41)
Comparison Mode (P42)
Alarm Mode (P42)
HOLD
PAGE1
Hold Function (P44)
Hold Detect Time (P45)
Auto Start Level (P46)
Minimum Count (P48)
Valley Detect Lv1 (P48)
PAGE2
Minimum Slope (P50)
Interval A (P50)
Interval B (P50)
Hold Point Shift (P46)
Mean Value
Sampling Count (P52)
GRAPH
PAGE1
Graph Function (P72)
Interval Time (P72)
Graph Start Level (P72)
Level Detect Mode (P73)
X Start Point (P74)
PAGE2
Y Start Point (P74)
Y End Point (P74)
2-2. Setting Modes Tree
6
2.SETTING MODES
CALIBRATION
PAGE1
Zero Cal. (P17)
Actual Cal. (P18)
Equiv. Cal. (P19)
CAL. Select (P25)
Increment (P22)
PAGE2
Unit (P27)
Decimal Place (P23)
Digital Offset (P21)
OPTION
A setting function changes
by the option.
SYSTEM
PAGE1
All Para. Clear (P103)
SelfCheck DSP (P101)
SelfCheck MEM (P101)
SelfCheck KEY (P102)
SelfCheck EXT (P102)
PAGE2
PASSWORD (P103)
LANGUAGE (P104)
BCD OUTPUT
PAGE1
BCD
Data Update Rate (P78)
BCD
Output Data Selection
(P78)
RS232C
PAGE1
Communication Mode
s (P81)
Baud Rate (P81)
Character Length (P81)
Parity Bit (P81)
Stop Bit (P82)
PAGE2
Terminator (P82)
D/AOutput
PAGE1
D/A Output Mode (P97)
D/A Zero Output (P96)
D/A Zero and Full Scale
(P96)
Current Zero Output (P96)
Current Zero and Full
(P96)
RS485
PAGE1
Communication Modes
(P81)
Baud Rate (P81)
Character Length (P81)
Parity Bit (P81)
Stop Bits (P82)
PAGE2
Terminator (P82)
ID (P94)
Terminator resistance
(P94)
Communication Method
(P94)
PAGE2
Voltage
Output Selection (P97)
Current
Output Selection (P97)
7
2.SETTING MODES
Page 3
↑↑
Mode Page
→→
Setting call
Operation setting
Setting call
Can be changed
by the PAGE
・Operation setting ・Comparison setting
・Hold ・Graph setting
・Calibration ・Option
・System
Modes are as follows:
Operation setting
button.
PAG E
PAGE
Page 1 Page 2 Page 3
PAG E
2-3. About a Setting Call
In this manual, a setting function call is described as follows.
Calibration Protection
This call can be made by the following procedure.
1）Press the MODE button on the ordinary display screen.
2）The mode setting screen appears. Select the mode.
3）The setting function setting screen appears. Select the function.
8
3. CONNECTION
（
Black
）
（
White)
（
Green)
AC
IN
L
N
F. G.
Check the wiring precisely before power source is turned on.
CAUTION
（
Red
）
（
Black)
DC IN
＋
－
F. G.
Be aware that the voltage drops depending on the wire thickness and
length. Also, never input an AC power source. Doing so will cause a
failure.
CAUTION
3-1. Connection with Power Source Input Terminal
AC spec.
3.CONNECTION
Connect AC power code attached to the terminal.
Voltage input : AC100V - 240V Frequency : 50/ 60Hz
DC spec. (Depending on the request at the time of order)
Connect the positive (+) side of the power source to the red screw side of the terminal
block on the back of the F370, and its negative (-) side to the black screw side. The input
voltage is 12V - 24V DC.
9
3.CONNECTION
（+EXC）
（-EXC）
（+SIG）
（-SIG）
（F.G or ）
+IN
-OUT
-IN
+OUT
A1
B2
A2
B1
F370
（+EXC）
（-EXC）
（+SIG）
（-SIG）
+IN
-OUT
-IN
+OUT
A1
B2
A2
B1
F370
（F.G or ）
3-2. Load Cell Connection
・4-wire sensor
・6-wire sensor
Short-circuit +EXC with +S and -EXC with -S for connecting a 6-wire strain-gage
sensor.
10
3-3. SI/F Connection
Converter
Display
Printer
SI/F
B10
B11
← Inside Outside →
F370
The 2-wire serial interface has connective ability for coupling a UNIPULSE printer,
external display, etc.
The interface is nonpolarized and up to three external instruments may be connected.
A two-core parallel cable or a cabtyre cable may be used for connection.
3.CONNECTION
11
3.CONNECTION
COM1
Spark Killer
Load
F370 Inside
Spark Killer
DC
Var isto r
Load
AC
Relay
Vex t
A3
Supply an external power source for a relay drive
Output Data Tr
0 OFF
1 ON
● Output Transistor Status
power source (Vext).
Power
Supply
Power
Supply
COM2
Push
Switch
Toggle
Switch
Relay
+12V
TTL Open Collector
(ON when IN is HI)
F370 Inside
A6
IN
IN
Open → OFF
Short → ON
- The external element is required to withstand Ic=10mA.
- Leakage from the external element is required to be
100μA or below.
3-4. External I/O Connection
3-4-1. External Output Connection
The external output circuit is operated through an open collector. A3 COM1 is the
common terminal. The open collector output capacity is 30mA and the withstand voltage
is up to 30V.
・Equivalent circuit
3-4-2. External Input Connection
12
A signal is inputted to the signal input circuit by short-circuiting or opening the input
terminal and the COM2 terminal. Short-circuiting is effected by means of a contact (such
as a relay or a switch) or a noncontact (such as a transistor or an open-collector TTL).
3-4-3. Connecting to Cage Clamp Terminal Block
5 - 6mm
・Cable can be from 24 to 14AWG (0.2 to 2.5mm2)
・ It is not necessary to solder the cable wires or to fix a solderless terminal.
・If several cables to be inserted to the same hole,twist those cable wires
together and insert.
・If you connect a cable (a load cell, SI/F, external input and output),
please turn off and be sure to perform the power supply of a main part.
CAUTION
The output terminal D/A option and RS-485 option is using the cage clamp system
terminal stand. Please connect in the following procedure.
1.Strip the casing 0.2inch (6mm) on the cable to be connected.
2.Twist the bare wire to fit the terminal hole.
3.Insert the supplied screwdriver into the upper hole and lift upward.
3.CONNECTION
4.Insert the twisted wires into the lower hole.
5.Make sure cable is clamped securely and does not come out with a slight tug.
13
4.CALIBRATION
F370
Strain gauge sensor
Rated output value（mV/V）
＋
Indicated value
A data sheet is attached to a strain-gage sensor at the time of purchase.
The data sheet provides data including:
capacity load (in kg, t, etc.)
rated output voltage (in mV/V)
non-linearity, hysteresis,input resistance,output resistance and zero
balance.
Enter the capacity and the rated output value required for equivalent
input calibration into the F370.
4. CALIBRATION
Calibration is performed for matching the F370 to a strain-gage sensor. The following
two types of calibration are available for the F370.
◇ Equivalent Input Calibration
Calibration is performed without an actual load by entering the rated output value (mV/
V) and the capacity (to be indicated) of the strain-gage sensor by the keys. Calibration is
easily performed when no actual load is available.
For example, the gain is automatically determined by entering:
2.001mV/V (rated output) - 100.0kg (capacity)
as indicated for a load.
14
◇ Actual Load Calibration
Actual
Strain gauge sensor
Indicated value
F370
load
Protection Release
Increment
Input Calibration
Calibration Protection
Decimal Place
Digital Offset
4-9.
4-7.
4-8.
4-5.
4-6.
4-9.
Zero Calibration
4-3.
Value Selection
4-10.
Calibration
Equivalent
Calibration
Apply an actual load to the strain-gage sensor and enter the actual load value by the keys
for calibration. Calibration is accurately performed with reductions in errors.
4-1. Equivalent Input Calibration Procedure
4.CALIBRATION
Follow the steps below to perform equivalent input calibration.
Release the calibration protection.
Set the calibration value No.
(This step may be omitted for use with only one
selection.)
Enter the minimum value of digital increments.
(This step may be omitted if there is no change.)
Determine the decimal point place of the indicated value.
(This step may be omitted if there is no change.)
Set the zero point of the strain-gage sensor in no-load
condition (with the sensor unloaded).
Enter the rated output value and reading of the strain-gage
sensor.
The calibrated value can be offset in advance.
(This step may be omitted if there is no change.)
Turn on the calibration protection for preventing
misoperation.
15
4.CALIBRATION
Protection Release
Increment
Load Calibration
Calibration Protection
Decimal Place
Digital Offset
4-9.
4-7.
4-8.
4-4.
4-6.
4-9.
Zero Calibration
4-3.
Value Selection
4-10.
Calibration
Actual
Calibration
4-2. Actual Load Calibration Procedure
Follow the steps below to perform equivalent input calibration.
Release the calibration protection.
Set the calibration value No.
(This step may be omitted for use with only one
selection.)
Enter the minimum value of digital increments.
(This step may be omitted if there is no change.)
Determine the decimal point place of the indicated value.
(This step may be omitted if there is no change.)
Set the zero point of the strain-gage sensor in no-load
condition (with the sensor unloaded).
Enter the span (gain) point of the strain-gage sensor with a
load applied to the sensor.
The calibrated value can be offset in advance.
(This step may be omitted if there is no change.)
Turn on the calibration protection for preventing
misoperation.
16
4-3. Zero Calibration
How to set
Setting call Page 1
→→
Calibration
Set the zero point in no-load condition.
1）Press the MODE button.
4.CALIBRATION
2）Press the CALIBRATION button.
3）Press the Zero Cal. button.
4）Press OK button after confirming no-load was applied to the sensor.
17
4.CALIBRATION
How to set
Setting call Page 1
→→
Calibration
4-4. Actual Load Calibration
Set the actual load value under an actual load.
1）Press the MODE button.
2）Press the CALIBRATION button.
3）Press the Actual Cal. button.
4）Apply an actual load to the sensor, enter the actual load value by the numerical keys
and determine with the OK button.
18
4-5. Equivalent Input Calibration
How to set
Setting call Page 1
→→
Calibration
Set the rated output value and reading of the sensor.
Rated output value: 0.000 - 3.000mV/V
Rated value: 00000 - 99999
1）Press the MODE button.
4.CALIBRATION
2）Press the CALIBRATION button.
3）Press the Equiv.Cal. button.
19
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