Japan, Tokyo Keiso
Tokyo Keiso RR930N/RR940N MINI UNIVERSAL CONVERTER
Made in Japan
Manufacturer: Tokyo Keiso
Model: RR930N/RR940N
The RR900N series is a scaling conversion display unit for pulse signal input.
It is ideal for pulse output type sensors such as wheel flowmeter sensors.
In addition to an alarm function and digital signal processing functions such as linearization, it is equipped with pulse/analog output and a serial communication function to output converted values.
Features
- Pulse input handles both contact signals (open collector) and voltage signals (selectable).
- Scaling conversion through multipoint linearization
- High and low alarm function
- Pulse or analog output function (Analog output can be switched between current and voltage.)
- Two-wire RS-485 serial communication and multidrop connection enable two or more units to communicate with each other
- CE-mark, RoHS-compliant
Specification
| Input signal | Open collector pulse / voltage pulse (selectable) |
|---|---|
| Indication | 5-digit red LED Frequency: 0.0 to 1500.0 (fixed point) Conversion value: 0.000 to 12000 |
| Indication accuracy | Accuracy: 0.05 % of reading ±0.1 Hz Resolution: 0.01 Hz |
| Output function | 【RR930N】 Re-pulsed output Pulse frequency signal proportional to the converted value Output range: 1 Hz to 1.5 kHz, Duty: 1:1 Output circuit: Open collector Output rating: 30 V DC / 10 mA【RR940N】 Analog output Current output: DC 4-20 mA (load: up to 400Ω) Voltage output: DC 0-5 V / 0-10 V (load: 500 kΩ or higher) (selectable) Accuracy: ±0.2 % of the reading at 23 °C ±5 °C |
| Operation key | MODE, SHIFT, UP, and ENT (Operation with tact switches on the front panel) |
| Main setting functions | · Full scale frequency, converted value · Low-cut off · Updating cycle of indication · Setup value for high / low alarm · Alarm operation setup |
| Communication type | RS-485 2-wire asynchronous serial communication |
| Power supply for the sensor | 12 V DC±10 %, up to 25 mA |
| Power source | 10 to 27 V DC Approx. 2 VA (max.) |
| Dimension | W48 × H24 × D80 mm Panel cut: Based on DIN24 × 48 |
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