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Name

DC Ammeter

Model

PSA-2401 / PSA-2411 / PSA-2431 / PSA-2451

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

Plug type [Standard] Spring lock / [Option] M2 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

Display Color

[Standard] PSA-2401 Red LED
[Option] PSA-2401-G Green LED

Indicator [Numerical Display]

5-digit, 7-segment LED Character height 9mm
Display range:-19999 to 99999
Over indication: OL / Zero indication: Leading zero suppress

Decimal point position

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

Display update time

0.3 sec [settable from 0.1 to 9.9 sec]

Display accuracy

20ppm ± 1 digit

Display Moving Average

1 to 9

Indicator

LED 1 point [selected from power/ control input]
　

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

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

7 to 60V DC with reverse connection protection. Power supply from USB host: 5V

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. 60g
　

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

Output update

1ms 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

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

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℃

Temp. fluctuation

±200ppm/℃ or less

Output scaling

Arbitrary scaling is possible by full scale and zero scale settings

Output update

1 to 9999ms settable in 1ms increments

Input/output delay

Output update time + analog rise time 150 μs max.
　

Alarm [Comparator] output option

Setting method

Set in program mode

Number of outputs

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

Update time

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

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-24 series
Power supply ・7 to 60V DC ・USB power 5V	Setting ・LINKSHIP software ・Setting unit PL-5A


*BXF-DN2* DIN rail attachment [sold separately]	*PSA-2451* Display-less type	*PSA-2431* With display type
>BXF-DN2 page

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-24 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.

Body Type

Front USB

Rear USB, Front waterproof gasket included

DIN rail mounting, with indicator

DIN rail mounting, no indicator

13 models by input range Input resolution 10.4ns

Customization ［Minimum of 1 unit: Please consult with us］

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

Reasonable and easy-to-use 1CH type

Smart configuration and logging

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

CSV logging

Compare set value lists

Save and copy of set

Prevention of misoperation

Quickly set up multiple units

USB Type-C connector standard：For setting / logging / power supply

Setup unit without LINKSHIP or PC required [Sold separately]

Easy wiring and installation For on-site usability

Various ways to use

Carry and measure

Built in panel

DIN rail mounting

Power supply 7 to 60V DC, and 5V USB power supply

Isolation Electrical isolation between Power supply / Current input / Other input/outputs

Application

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

DC Ammeter PSA-24
Digital panel meter, signal converter, indicating alarm meter, distributor

13 models by input range
Input resolution 10.4ns

Customization　［Minimum of 1 unit: Please consult with us］

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 wiring and installation　For on-site usability

Isolation　Electrical isolation between Power supply / Current input / Other input/outputs