DC Ammeter PSA-4801
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PSA-4801 Standard Model
| 35,800 yen and up * [tax not included] |
| For real-time PWM current measurement, feedback control, etc. |
Built-in current detection resistor. 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 [Specify input range when ordering] Input resolution 10.4ns
Shunt resistor 40mΩ [Model ±10A, ±5A, ±2A] Significantly reduced resistance loss
Rates can be set as desired.
13 models by input range [Specify input range when ordering] Input resolution 10.4ns
| ±10A | ±5A | ±2A | ±1A | ±200mA | ±100mA | ±20mA |
| ±10mA | ±2mA | ±1mA | ±200μA | ±100μA | 4(0)-20mA* | *Process signal support |
| Please contact us for other ranges. | ||||||
Shunt resistor 40mΩ [Model ±10A, ±5A, ±2A] Significantly reduced resistance loss
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Various applications |
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| Customization - built into box, multi-CH, etc. | Read more > |
| Functional changes | Built into box [Below are some examples of results] | Compact Multi CH, built into the box | |
| Inputs, outputs, operations, etc. - Change input power supply - Match output voltage and communication specifications to equipment | Please consult with us about the boxed items you would like. 
 
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- Select and combine only what you need |
Output variety 1ms update
CAN output [Option]
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16bit analog output [Option] Alarm output [Option] 1 to 4points [Depends on model] USB Type-C [standard feature] |
Easy setup, measurement and installation Consideration for ease of use on site
Mounting hooks [Left and right] For fixing the main unit
Front operation. Setting and measuring
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(A) Operation indicator LED (B) Front sheet button - [In program mode] MODE, digit selection, numeric setting, ENTER - [In measurement mode] Span shift, Zero shift - Key lock: Prevents unintentional operation by field workers. |
 Blue/pink type [Option] *Designs are subject to change. |
Mounting hooks [Left and right] For fixing the main unit
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| Smart configuration and logging | LINKSHIP Page > |
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 | ||||
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| Time-specified logging, such as 600 seconds, is also available. Custom logger software is also available. | Multiple lists of set values can be compared and collated. | It prevents errors in note-taking and manual entry, and reduces management effort and costs. | Settings and confirmations can be made on the PC screen, preventing misoperation of the main unit's buttons. | Even multiple units can be easily configured by simply writing the configuration data. |
| USB Type-C connector standard | Setup unit without LINKSHIP or PC required: Program Loader PL-5A [sold separately] |
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 PL-5A Product Page *Setting only / data logging and power supply not available |
Power supply: 12 to 30VDC / 100 to 240VAC [Select a model]
Isolation Electrical isolation between power supply/other inputs and outputs
Isolation Electrical isolation between power supply/other inputs and outputs
| Applications | See more Applications > |
The PSA-4801 has a very small input resistance of approximately 40 mΩ (±10A/±5A/±2A types), enabling highly accurate measurements.
It can also be used for current measurement of low-voltage devices and evaluation of charge/discharge characteristics of batteries and cell batteries.
Real-time measurement of PWM drive current of solenoid valves and motors
| Drive current | → |  Motor |
→ |  PSA-48 |
Analog output →→→ |
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Oscilloscopes Data Loggers |
| Drive current | → |  Linear solenoid valve |
→ | PSA-48 |
CAN →→→ |
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PLC |
CCCV charge current measurement and management of lithium-ion batteries and chargers
Current - CAN conversion >
Specifications
| Name Model Measuring method |
DC Ammeter PSA-4801 ΔΣ integral method |
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| Input | Number of input points |
1 point | |||
| Measuring range | Model type ±10A ±5A ±2A ±1A ±200mA ±100mA ±20mA ±10mA ±2mA ±1mA ±200μA ±100μA 4-20mA |
Current measurement range -10000.0mA to +10000.0mA -5000.0mA to +5000.0mA -2000.0mA to +2000.0mA -1000.0mA to +1000.0mA -200.00mA to +200.00mA -100.00mA to +100.00mA -20.000mA to +20.000mA -10.000mA to +10.000mA -2.0000mA to +2.0000mA -1.0000mA to +1.0000mA -200.00μA to +200.00μA -100.00μA to +100.00μA +4.0000mA to +20.000mA |
Input terminal withstand voltage -11A to +11A -6A to +6A -3A to +3A -3A to +3A -3A to +3A -3A to +3A -3A to +3A -3A to +3A -3A to +3A -3A to +3A -0.05A to +0.05A -0.05A to +0.05A 0A to +3A |
Measurement resolution 0.5mA 0.25mA 0.1mA 0.05mA 0.01mA 0.005mA 0.001mA 0.001mA 0.001mA 0.001mA 0.05μA 0.05μA 0.001mA |
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| Measurement accuracy Oversampling Input low-pass filter Input connector Sensor Power supply - output [Option] |
±0.1%FS +1digit 250kHz fixed Cut-off frequency 1kHz Terminal block 7.62mm pitch M3 free terminal screw [H] DC +12V±5％ 60mA max / [L] DC +5V±5％ 150mA max |
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| Calculation | Control input [Functions] [ON logic] [Operation Method] [Data communication] [Response time] [Backup] Setting value memory |
2 or 4 points [Varies depending on model.] Functions and ON logic can be set for each CTL for external control. Hold (current/max./min. value, max. fluctuation range), zero/span shift, zero/span set Normally open /normally closed ON when control input (CTL*) pin (ON logic) is shorted (open) to GND; setting is reflected when open (shorted). 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 can be set: 1 to 1999 ms Possible to back up values during shift and set operations. (values can be retained even when power is turned off) Nonvolatile memory (EEPROM) |
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| Display | Display Color Indicator (Numerical Display) Decimal point position Display update time Display accuracy Indicator (4 round LEDs) |
[Standard] PSA-4801 Red LED / [Option] PSA-4801-G Green LED 6-digit, 7-segment LED Character height 14.2mm / Display range:-199999 to 999999 Polarity indication: Reverse rotation -Lighted / Over indication: OL / Zero indication: Leading zero suppress Semi-fixed Decimal point position is set in program mode. [0] ******, [1] *****.* to [4] **.**** 0.3 sec (settable from 0.1 to 9.9 sec) 5ppm ± 1 digit [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) |
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| USB communication |
Communication specification Communication function Output update time |
USB2.0 (Serial port communication by USB virtual COM 230.4kbps) Writing/reading of set values/continuous output of measured values 1 to 9999ms, settable in 1ms increments |
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| General Information |
Operating temp./humidity Power supply voltage Power consumption Isolation Weight |
-10°C to +50°C / 35 to 85%RH (non-condensing) PSA-4801-AF: AC100-240V (Maximum rated AC85-264V) 50/60Hz PSA-4801-DF: 12-30V DC with reverse connection protection 3W or less Power Supply/ Current input /Other Input/output Approx. 340g |
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| CAN Option | Communication specifications Communication function Setting item Output update time |
CAN2.0B 10 k / 20 k / 50 k / 100 k / 250 k / 500 k / 1M bps, [Format] INTEL/MOTOROLA, [Frame] 11bit/29bit Writing/reading of set values/continuous output of measured values CAN transmit ID, CAN receive ID 1 to 9999 ms (settable in 1 ms increments) |
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| RS-485 communication option |
Number of connected units Communication format Communication method Communication standard Communication speed Data format Communication code Communication function |
32 units (max.) 2-wire multi-drop serial communication Asynchronous RS-485 9,600 /19,200 /38,400bps Set in program mode Start bit: 1 bit / Stop bit: 1 bit / Data length: 8 bits / Parity bit: None ASCII Writing/reading set values/measurement value output (response to request command) Modbus RTU support is available upon request. |
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| Analog output option |
Output signals D/A conversion method Output resolution Load resistance Output accuracy Temperature fluctuation Output scaling Output update time Input/output delay time |
[E1] 0 to 10 V, [E5] 0 to 5 V, [R1] ±10 V, [R5] ±5 V, [I1] 4 to 20 mA [Select a model] DAC conversion method 16bit (50,000 or more) [Voltage output] 4.7kΩ or more / [Current output] 300Ω or less [Voltage output] ±0.1% of FS @ 23°C / [Current output] ±0.1% of FS @ 23°C ±200ppm/℃ or less Arbitrary scaling is possible by full scale and zero scale settings 1 to 9999ms settable in 1ms increments Output update time + analog rise time 150 μs max. |
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| Alarm [Comparator] output option |
Setting method Number of outputs Output form Output load voltage Output logic Update time |
Set in program mode 2 points Isolated non-contact output (photo-MOS relay) No polarity. When comparator operating condition is ON, resistance between COMP and COM: 50 Ω or less Peak AC/DC280V 100mA (resistive load) / ON resistance 50Ω or less 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 Depends on analog output update time setting. Response time 1ms (max) |
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