Load cell meter ST-4801

Specifications

Tyoe	ST-4801
Input
Input signal	1 point 　Load cell signal
Bridge Resistance	120Ω / 350Ω　excitation voltage：2.5V / 5.0V / 10.0V (±7%)
Measuring range	±5.1mV/V　ADC resolution 60,000 or higher Operable with specifications equivalent to the reference below: ・Span adjustment range: 1-4mV/V ・External shunt resistor adjustment range: Covers 40%-100% (factory default 80%) ・Zero adjustment range: -100% to 25% FS
Minimum Input Sensitivity	1μV/digit at Bridge voltage 5V 2μV/digit at Bridge voltage 10V
Measurement Accuracy	±(0.1% of FS + 1digit）@23℃　35-85% *Sampling rate, 20 times/sec or less
Temperature Characteristics	Zero: 0.02% FS/°C, Span: 0.02% FS/°C
Sampling Rate	1000 times/sec *ΔΣ AD conversion method
Sensor Power Supply Output	2.5V／5V／10V／Other voltage [Select Model]

Calculation
Measuring method	ΔΣ integral method
Moving Average Number	1 to 99
Control input	2 or 4 points [Varies depending on model.] Functions and ON logic can be set for each CTL for external control.
[Functions]	Hold (current/max./min. value, max. fluctuation range), zero/span shift, zero/span set
[ON logic]	Normally open /normally closed
[Operation Method]	ON when control input (CTL*) pin (ON logic) is shorted (open) to GND; setting is reflected when open (shorted).
[Data communication]	Command control is possible via communication (USB, CAN, RS-485) Commands set via communication cannot be released by terminal input. Reset execution is always required.
[Response time]	Response time can be set: 1 to 1999 ms
[Backup]	Possible to back up values during shift and set operations. (values can be retained even when power is turned off)
Setting value memory	Nonvolatile memory (EEPROM)

Display
Display Color	[Standard] ST-4801 Red LED / [Option] ST-4801-G Green LED
Indicator (Numerical Display)	6-digit, 7-segment LED Character height 14.2mm [Display range] -199999 to 999999 [Over indication] OL [Zero indication] Leading zero suppress
Decimal point position	Semi-fixed Decimal point position is set in program mode. [0] ****, 　[1] **. to [4] .**
Indicator (4 round LEDs)	[IN ] Not used [RUN ] Lights up when function setting is ON (function setting is available) [COMP1] Lights up when comparator/Alarm output 1 is ON (option) [COMP2] Lights up when comparator/Alarm output 2 is ON (option)

USB communication
Specification	USB2.0 (Serial port communication by USB virtual COM 230.4kbps)
Function	Writing/reading of set values/continuous output of measured values
Output update time	1 to 9999ms, settable in 1ms increments

General
Operating temp./humidity	-10°C to +50°C / 35 to 85%RH (non-condensing)
Power supply voltage [Selevt a model]】	ST-4801-AF: AC100-240V (Maximum rated AC85-264V) 50/60Hz ST-4801-DF: 12-30V DC with reverse connection protection
Power consumption	3W or less
Isolation	Power Supply/ Voltage input /Other Input/output
Withstand voltage	Between each terminal of the above isolations: 500V DC between each terminal for 1 minute.
Weight	Approx. 340g

CAN Option
Sspecifications	CAN2.0B 10 k / 20 k / 50 k / 100 k / 250 k / 500 k / 1M bps [Format] INTEL/MOTOROLA, [Frame] 11bit/29bit
Function	Writing/reading of set values/continuous output of measured values
Setting item	CAN transmit ID, CAN receive ID
Output update time	1 to 9999ms, settable in 1ms increments

RS-485 Option
Number of connected units	32 units max.
Communication format	2-wire multi-drop serial communication
Communication method	Asynchronous
Communication standard	RS-485
Communication speed	9600 / 19200 / 38400bps Set in program mode
Data format	Start bit: 1 bit / Stop bit: 1 bit / Data length: 8 bits / Parity bit: None
Communication code	ASCII
Communication function	Writing/reading set values/measurement value output (response to request command) Modbus RTU support is available upon request.

Analog output option
Output signals	[E1] 0 to 10 V, [E5] 0 to 5 V, [R1] ±10 V, [R5] ±5 V, [I1] 4 to 20 mA　　　 [Select a model]
D/A conversion	DAC conversion method
Output resolution	16bit (50,000 or more)
Load resistance	[Voltage output] 4.7kΩ or more [Current output] 300Ω or less
Output accuracy	[Voltage output] ±0.1% of FS @ 23°C [Current output] ±0.1% of FS @ 23°C
Temperature fluctuation	±200ppm/℃ or less
Output scaling	Arbitrary scaling is possible by full scale and zero scale settings
Output update time	1 to 9999ms, settable in 1ms increments

Alarm [Comparator] output option
Setting method	Set in program mode
Number of outputs	2 / 4 points　 [Select a model]
Output form	Isolated non-contact output (photo-MOS relay) No polarity. When comparator operating condition is ON, resistance between COMP and COM: 50 Ω or less
Output load voltage	Peak AC/DC280V 100mA (resistive load) / ON resistance 50Ω or less
Output logic	Comparison is made with polarity (0 is greater than minus) [Over] ON when set value or more / [Under] ON when set value or less/ [Within range] ON within the set value, OFF outside the range [Out of range] ON outside the set value, OFF inside the range
Update time	Depends on analog output update time setting. Response time 1ms (max)

CAN analog conversion	DC current	DC voltage
Thermocouple [temp.]	Thermistor [temp.]	RTD [temp.]
Speed/Count	Frequency deviation/torque	Resistance

Load cell meter ST-4801 Digital panel meter, signal converter, indicating alarm meter

Strain, pressure, displacement, load, weight, acceleration, etc.

Excitation voltage

Bridge Resistance

Customization - built into box, multi-CH, etc.

Built into box

Backside

Multi CH in a box

Multi CH with display

HDMI output + display software

Rack Mounted

Output 1ms update

CAN [Option]]

RS-485, Ethernet [Option]

USB Type-C [Standard feature] Data logging, setting

16bit analog [Option] Resolution 50,000 or more／Full scale and zero scale settings, output zero adjustment

Analog 2 Output [Option] Example: 0-10V and 4-20mA output

Alarm [Option] 1 to 4points [Depends on model]

Easy setup, measurement and installation For ease of use on site

Front operation. Setting and measuring

Smart configuration and logging Setting management, report printing, and CSV logging with dedicated software LINKSHIP [free of charge]

CSV logging

Compare and match set value lists

PC save and copy of set values

Prevention of misoperation

Quickly set up multiple units

USB Type-C connector standard：For configuration and logging

Setup unit without LINKSHIP or PC required: [sold separately]

Power supply: 12 to 30VDC / 100 to 240VAC [Select a model]

Isolation Electrical isolation between power supply/voltage input/other inputs and outputs

Applications For measurement and conversion applications involving strain, pressure, displacement, load, weight, acceleration, etc.

Crash Testing

Weighing, Defect Confirmation

Drift Loss and Actual Dispersion Volume

Tensile Force and Weight

Pressure in Tablet Presses, etc.

Pressing and Fitting in Press Machines

To Strain-Type Acceleration Sensors

Load Cell - CAN Conversion

Strain, Pressure, Temperature, CCCV Current/Voltage in Rechargeable Batteries >

Specifications

Other measurements

CAN, 16bit analog, Alarm, RS-485, Modbus

Smart configuration / Prevents unintentional operation

USB Type-C standard equipment

Built in box, multi-CH, and function changes, etc

RS-485, Ethernet　[Option]

USB Type-C　[Standard feature] Data logging, setting

16bit analog　[Option]
Resolution 50,000 or more／Full scale and zero scale settings, output zero adjustment

Analog 2 Output　[Option]
Example: 0-10V and 4-20mA output

Alarm　[Option] 1 to 4points　[Depends on model]

Easy setup, measurement and installation　For ease of use on site

Smart configuration and logging　Setting management, report printing, and CSV logging with dedicated software LINKSHIP [free of charge]

Power supply: 12 to 30VDC / 100 to 240VAC　[Select a model]

Isolation　Electrical isolation between power supply/voltage input/other inputs and outputs

Applications
For measurement and conversion applications involving strain, pressure, displacement, load, weight, acceleration, etc.