| Product Name |
Ohmeter (Resistance Meter) |
| Model |
RR-2401 / RR-2411 / RR-2431 / RR-2451 |
| Input Section |
| Number of Inputs |
1 point |
Measurement Range: 150Ω / 1.5kΩ / 10kΩ / 40kΩ
| Range |
150Ω |
1.5kΩ |
10kΩ |
40kΩ |
| Measurement Range |
0-160Ω |
0-1.6kΩ |
0-10kΩ |
0-40kΩ |
| Open-circuit Voltage |
3.3V |
| Measurement Current |
1000μA |
100μA |
50μA |
| Accuracy Error Rate |
±0.02% F.S. |
| Min Resolution |
0.01Ω |
0.1Ω |
0.5Ω |
1.5Ω |
|
| Sensor Power Output |
Option: [H] DC +12V±5% 60mA max / [L] DC +5V±5% 150mA max *Sensor power is not output during USB bus power delivery.
|
| Arithmetic Section |
| Operation Method |
ΔΣ A/D Conversion Method |
| Moving Average Count |
1 - 99 (Display moving average count is 1 - 9) |
| Control Input |
None or 1 point (depending on model) / 2 points added with [D2] option |
| (Configurable Functions) |
Assign functions to each control input (CTL) for external control.
[Functions] Hold (Current value, Max value, Min value, Max peak-to-peak fluctuation range), Zero shift |
| (Operation Method) |
Short-circuiting the control input (CTL*) terminal (ON logic) to GND activates the control; opening it deactivates/reflects settings. |
| (Data Communication) |
Command control supported via communications (USB, CAN, RS-485). *Commands set via communication cannot be cleared via terminal inputs. A system reset is required. |
| Memory Storage |
Non-volatile memory (EEPROM)
|
| Display Section |
| Display (Numeric) |
5-digit, 7-segment LED, Character Height: 9mm / RR-2401: Red LED / RR-2401-G: Green LED (Option)
Display Range: -19999 to 99999 / Over-range Display: OL / Zero Display: Leading zero suppression
Display Update Time: 0.3 sec (configurable from 0.1 to 9.9 sec) / Display Moving Average: 1 time (configurable from 1 to 9 times) |
| Decimal Point Position |
Semi-fixed, configured in program mode. 0: □□□□□, 1: □□□□.□ to 4: □.□□□□ |
| Display (Indicator) |
1 LED, configurable from power status / control input
|
| USB Communication Section |
| USB Specs |
USB 2.0 (Serial port communication via USB Virtual COM, 230.4 kbps) |
| USB Functionality |
Read/Write setting values / Continuous measurement data output |
| Output Update Time |
1ms - 9999ms (configurable in 1ms increments)
|
| General Specifications |
| Operating Temp/Humidity |
-10°C to +50°C, 35 to 85% RH (Non-condensing) |
| Supply Voltage |
DC 7-60V, Reverse connection protection included / Power via USB host: 5V |
| Power Consumption |
3W or less |
| Isolation |
Between Power Supply / Ohmmeter Input / Other I/Os |
| Withstand Voltage |
Between Power Supply / Ohmmeter Input / Other I/Os: DC 500V for 1 minute between each terminal |
| Weight |
Approx. 60g
|
| CAN Option |
| Communication Specs |
CAN 2.0B, 10 k / 20 k / 50 k / 100 k / 250 k / 500 k / 1M bps / Formats (INTEL/MOTOROLA) / Frames (11-bit/29-bit) |
| Communication Functions |
Read/Write setting values / Continuous measurement data output |
| Configuration Items |
CAN Tx ID, CAN Rx ID |
| Output Update Time |
1ms - 9999ms (configurable in 1ms increments)
|
| RS-485 Option Please consult us for Modbus RTU support |
| Max Connections |
32 units (max) |
| Connection Type |
2-wire multi-drop serial communication |
| Communication Mode |
Asynchronous |
| Standard |
RS-485 |
| Baud Rate |
9600bps / 19200bps / 38400bps (configured in program mode) |
| Data Format |
Start bit: 1-bit / Stop bit: 1-bit / Data length: 8-bit / Parity bit: None |
| Communication Code |
ASCII |
| Communication Functions |
Read/Write setting values / Measurement data output (responds to request commands)
|
| Analog Output Option |
| Output Signals |
[E1] 0 - 10V / [E5] 0 - 5V / [R1] ±10V / [R5] ±5V / [I1] 4 - 20mA [Select Model Type] |
| D/A Conversion |
DAC method |
| Output Resolution |
16-bit (over 50,000 counts) |
| Load Resistance |
Voltage output: 4.7kΩ or more / Current output: 300Ω or less |
| Output Accuracy |
Voltage output: ±0.1% of F.S. @23°C / Current output: ±0.1% of F.S. @23°C |
| Temperature Drift |
±200ppm/°C or less |
| Output Scaling |
Custom scaling available via full-scale and zero-scale configurations |
| Output Update Time |
1ms - 9999ms (configurable in 1ms increments)
|
| Comparator (Alarm/Alert) Output Option |
| Configuration Method |
Configured in program mode |
| Number of Outputs |
2 points / 4 points (depending on model selection conditions) |
| Output Form |
Isolated solid-state output (PhotoMOS relay), non-polarized / Resistance between COMP-COM is 50Ω or less when comparator operation condition is ON |
| Output Load Voltage |
Peak AC/DC 280V 100mA (Resistive load) / Max ON resistance: 50Ω or less |
| Output Logic |
Comparison performed with polarity (0 is greater than negative value)
| [High / Above] |
ON when value is greater than or equal to setting |
| [Low / Below] |
ON when value is less than or equal to setting |
| [Go / Within Range] |
ON within the range, OFF outside the range |
| [Out of Range] |
ON outside the range, ON within the range |
|
| Update Time |
Depends on analog output update time settings / Max response time: 1ms |
