Specifications

Name

Resistance meter

Model

RR-4801

Measuring method

ΔΣ integral method

Input

Number of input

1 point

Measurement range　150Ω / 1.5kΩ / 10kΩ / 40kΩ
[Ambient temperature 23°C]

Setting range	Measurement range	Open circuit voltage	Measuring Current	Measurement error rate	Minimum Resolution
150Ω	0 - 160Ω	3.3V	1000uA	±0.02%FS	0.01Ω
1.5kΩ	0 - 1.6kΩ	3.3V	1000uA	±0.02%FS	0.1Ω
10kΩ	0 - 10kΩ	3.3V	100uA	±0.02%FS	0.5Ω
40kΩ	0 - 40kΩ	3.3V	50uA	±0.02%FS	1.5Ω

Input connector

Terminal block 7.62mm pitch M3 free terminal screw

Sensor Power supply [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

[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

Setting Value Memory

Non-volatile Memory (EEPROM)

Display

Indicator
(Numerical Display)

6-digit, 7-segment LED Character height 14.2mm
[Standard] RR-4801 Red LED / [Option] RR-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 / Resistance 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

Response time after calculation

1 ms or less, 0 - 90% response

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)

Calculation ・Moving average Max. 99 ・HOLD [Current value/Max. value/Min. value/Max. variation range] ・Zero shift
RR-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

Setting range	Measurement range	Open circuit voltage	Measuring current	Measurement error rate	Minimum resolution
150Ω	0-160Ω	3.3kV	1000μA	±0.02%FS	0.01Ω
1.5kΩ	0-1.6kΩ		1000μA		0.1Ω
10kΩ	0-10kΩ		100μA		0.5Ω
40kΩ	0-40kΩ		50μA		1.5Ω

Input Potentiometer, internal resistance, etc.

Power supply for sensor ・12V/5V/others

Resistance meter RR-4801 Digital panel meter, signal converter, indicating alarm meter

For Displacement sensors, Resistive output sensors, etc.

The rate can be set arbitrarily. Used with potentiometer-type displacement sensors or resistance output temperature sensors.

Input ranges 150Ω / 1.5kΩ / 10kΩ / 40kΩ

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 / Resistance input / Other inputs and outputs

Application

Resistance/ Potentiometer Measurements

Resistance to CAN conversion

Measure and monitor valve opening (angle)

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

Input ranges　150Ω / 1.5kΩ / 10kΩ / 40kΩ

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 / Resistance input / Other inputs and outputs

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