Specifications

Name

DC Ammeter

Model

PSA-4801

Measuring method

ΔΣ integral method

Input

Number of input

1 point

Measuring range

Model	Range	Terminal withstand	Resolution
±10A	-10000.0mA to +10000.0mA	-11A to +11A	0.5mA
±5A	-5000.0mA to +5000.0mA	-6A to +6A	0.25mA
±2A	-2000.0mA to +2000.0mA	-3A to +3A	0.1mA
±1A	-1000.0mA to +1000.0mA	-3A to +3A	0.05mA
±200mA	-200.00mA to +200.00mA	-3A to +3A	0.01mA
±100mA	-100.00mA to +100.00mA	-3A to +3A	0.005mA
±20mA	-20.000mA to +20.000mA	-3A to +3A	0.001mA
±10mA	-10.000mA to +10.000mA	-3A to +3A	0.001mA
±2mA	-2.0000mA to +2.0000mA	-3A to +3A	0.001mA
±1mA	-1.0000mA to +1.0000mA	-3A to +3A	0.001mA
±200μA	-200.00μA to +200.00μA	-0.05A to +0.05A	0.05μA
±100μA	-100.00μA to +100.00μA	-0.05A to +0.05A	0.05μA
4-20mA	+4.0000mA to +20.000mA	0A to +3A	0.001mA

Measurement accuracyy

±0.1%FS +1digit

Oversampling

250kHz fixed

Input low-pass filter

Cut-off frequency 1kHz

Input connector

Terminal block 7.62mm pitch M3 free terminal screw

Sensor Power supply -
output [Option]

[H] DC＋12V±5％ 60mA max／ [L] DC ＋5V±5％ 150mA max

Calculation

Output moving average

1 to 99 [Display moving average]1 to 9

Low cut

Current below the set value is judged as 0.

Control input

None or 1 point (depending on model)　　　[D2] Option adds 2 points

[Settings]

Set functions per control input (CTL) for external control

[Functions]

Hold (current value, max value, min value, max fluctuation range),
zero shift, span shift, zero set, span set

[ON Logic]

Normally open, normally closed

[Operation]

Control Input (CTL*) Terminal (ON Logic):
Short to GND (Open) for ON, Open (Short) for setting content to take effect

[Commnication]

Command control possible via communication (USB, CAN, RS-485)
*Commands set via communication cannot be canceled by terminal input. Reset execution is always required

[Response Time]

configurable (1ms to 1999ms)

[Backup]

Enable/disable backup of values during shift and set operations (values retained even after power off)

Setting Value Memory

Non-volatile Memory (EEPROM)

Display

Indicator
(Numerical Display)

6-digit, 7-segment LED Character height 14.2mm
[Standard] PSA-4801 Red LED / [Option] PSA-4801-G Green LED
Display range: -199999 to 999999
Over indication: OL / Zero indication: Leading zero suppress

Decimal point position

Semi-fixed, set in program mode. [0] ******, 　[1] *****.* to [4] **.****

Update time

0.3 sec (settable from 0.1 to 9.9 sec)

Display accuracy

20ppm ±1digit

Indicator
4 round LEDs

[IN] Not in use
[RUN] Illuminates when function setting is ON
[COMP1][COMP2] Illuminates when comparator output 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

Update time

1 to 9999ms Settable in 1ms increments

General Information

Operating temp./humidity

-10°C to +50°C / 35 to 85%RH (non-condensing)

Power supply
[Select a model]

[AF] 100-240VAC (Maximum rated 85-264VAC) 50/60Hz
[DF] 9.6-30VDC (Maximum rated 9-36VDC) with reverse connection protection

Power consumption

3W or less

Isolation

Power supply / Current input / Other input/output

Withstand voltage

Between each terminal of the above isolation:
DC 500V for 1 minute

Weight

Approx. 340g

CAN option

Specifications

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

Update time

1 to 9999ms 　Settable in 1 ms increments

RS-485 communication option　Modbus RTU support is available upon request.

Connected units

32 units [max.]

Format

2-wire multi-drop serial communication

Method

Asynchronous

Standard

RS-485

Speed

9600bps / 19200bps / 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

Function

Writing/reading set values/measurement value output [response to request command]

Analog output option

Output signals

[E1] 0 - 10V　[E5] 0 - 5V　[R1] ±10V　[R5] ±5V　[I1] 4 - 20mA　 [Select a model]

D/A conversion method

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℃/ [Current output] ±0.1% of FS @ 23℃

Temperature fluctuation

±200ppm/℃ or less

Output scaling

Arbitrary scaling is possible by full scale and zero scale settings

Update time

1 to 9999ms settable in 1ms increments

Input/output delay time

Output update time + analog rise time 150 μs max.

Alarm [Comparator] output option

Setting method

Set in program mode

Number of outputs

2 to 4 points　[depends on the models]

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 range, OFF outside the range
[Out of range]	ON outside the set range, OFF within the range

Update time

Depends on analog output update time setting. Response time 1ms [max.]

Ethernet Communication option

Connector

RJ-45 (Network Interface) Lantronix XPort

Interface

100BASE-TX／10BASE-T (Auto-sensing)
Transmission Speed Standard: Category 5/Category 4

Specifications

Protocol: TCP/IP Method: Telnet Communication Connection

Output update

Same as USB communication 1 to 9999ms

Transmission Compatibility

DIX Ethernet Version2.0 IEEE 802.3

LED Indicators

100BASE-TX／10BASE-T

Link/Activity Indicator

Full Duplex/Half Duplex (Telnet cannot handle encrypted communication networks using SSL/TLS or SSH)

Inputs PWM drive current Battery charging current Microcurrent
Solenoid	Battery
Motor	Clamp-on sensor
Power supply for sensor ・12V/5V/others

Calculation ・Oversampling 250kHz ・Moving average Max. 99 ・Low cut ・HOLD [Current value/Max. value/Min. value/Max. variation range] ・Zero/Span shift, Zero/Span set
PSA-4801
Power supply ・DC9.6-30V ・AC100-240V	Setting ・Front button on main unit ・Special software LINKSHIP ・External setting unit PL-5A

Load cell/Pressure/Strain	CAN to analog
DC current	DC voltage
Thermocouple meter	Thermistor meter
RTD meter	Resistance Meter
Speed/Count, Pulse Freq.	Torque/Freq.deviation

DC Ammeter PSA-4801 Digital panel meter, signal converter, indicating alarm meter, distributor

For real-time PWM current measurement, feedback control, etc.

Average current per output update time is measured with a ΣΔAD converter with oversampling of approximately 250 kHz. Rates can be set as desired.

13 models by input range Input resolution 10.4ns

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 [Option]

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

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

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

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: 9.6 to 30VDC / 100 to 240VAC [Select a model]

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

Application

Real-time measurement of PWM drive current of solenoid valves, etc.

Measurement of CCCV charging current of lithium-ion battery

Understanding Current Measurement. Advantages of the PSA Series

Current to CAN conversion

Easy and accurate current measurement with clamp sensor

Wind Tunnel Testing / vehicles, motorcycles, architectural and civil engineering structures, etc.

Specifications

Related Products

Other measurement categories：EX Series

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

13 models by input range
Input resolution 10.4ns

RS-485　[Option]

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

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

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

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: 9.6 to 30VDC / 100 to 240VAC　[Select a model]

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

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