Twin Digital Tachometer TSM-200
The ATSENSE TSM-200 Tachometer is a high-function twin digital panel meter designed for precise engine R&D, industrial machinery, and plant monitoring. Supporting dual sensor inputs (A/B), it measures and displays both simultaneously with A+B, A-B, or average speed calculations. With a 2MHz max input frequency, 0.5ms response, and multiple outputs (analog, CAN, USB, RS232/485, BCD, relay), it delivers fast, reliable, and flexible performance. Its IP66-protected panel and bright dual LCD ensure durability and visibility, making it ideal for demanding test environments.A high-precision, highly-functional digital panel meter with built-in tachometer measuring capability.
- The first panel meter that has been used for CAN data output (option) and flow auto-repeat measurement (flow meter)
- 6-digit and 13-digit, two-level, high brightness LCD display (red and green). You can choose the display color.
- A multitude of options (analog output/BCD output/CAN output/contact output/RS232 communication/RS485 communication/USB communication)
- Both sensors (A, B) can be measured at the same time, and the display and analog signal for each can be output as desired
- Also A+B, A-B, and average speed measurement possible
- Maximum input frequency 2MHz (for single-phase), 500kHz for two-phase input
- Possible maximum response speed of 0.5ms for high-speed output, analog output, BCD output, and CAN output
The model configuration for this instrument is as shown in the figure below.
The model is left-justified when option “No” was selected.
Multiple options cannot be chosen from options in the same group.
Two different types can be selected out of digital output, contact output, and communication.
| Model | TSM-200 | |
| Name | Tachometer | |
| Arithmetic | ||
| Input operations | A/AB (reversible)/A+B/A-B/AB average | |
| Instantaneous measurement | Measurement method | Periodic calculation method (with function for predicting deceleration) |
| Measurement clock | 20MHz | |
| Operation key | 5 points | |
| Memory | Memory element | Non-volatile memory |
| Memory content | Setting values | |
| Display | ||
| Display | LCD negative, backlight | |
| Main display | Display items | Rotational speed |
| Display color, character height, number of digits | Switching between red and green backlight, 14.2mm, 6 digits + polarity (-) | |
| Sub-display | Display items | Comparator setting values/rotational speed A – B/OFF |
| Display color, character height, number of digits | Switching between red and green backlight, 6.5mm, 13 digits + polarity (-) at 2 points | |
| Status display | Display color | Switching between red and green backlight |
| Instantaneous measurement | Refresh time | 0.1 to 9.9s |
| Moving average | 1 to 99 | |
| Signal input (sensor input) | ||
| Number of inputs | 2 inputs | |
| Types of input signal (CH) | Single-phase (2ch) / UP/DOWN (1ch) / A/B 2-phase signal (1ch) switching | |
| Maximum input frequency | Single-phase, UP/DOWN signal | 2MHz |
| A/B 2-phase signal | 500kHz | |
| Minimum input frequency | 0.005Hz | |
| Frequency division (pulse average) | Signal A only, 1 to 999 | |
| Signal input (sensor input) (0) General purpose | ||
| Input level | AC (zero-cross) signal Signal A | ±200mV to ±30V, LPF switching |
| Logic signal | H level 3.9V or more, L level 1V or less (voltage resistance ±30V) | |
| Others | Pull-up/pull-down switching | |
| Power supply for sensor | Voltage and maximum current | DC12V±10%, 100mA |
| Signal input (sensor input) (L) line | ||
| Input level | TTL (logic signal) | H level 3.9V or more, L level 1V or less (maximum ±30V) |
| Line driver signal | Differential signal compliant with RS-422 (485) (maximum ±7V) | |
| Power supply for sensor | Voltage and maximum current | DC5V±10%, 200mA |
| Analog output | ||
| Refresh time | 0.5ms/0.001 to 9.999s | |
| D/A conversion | 16bit | |
| Analog output (V) General purpose (1CH) | ||
| Number of outputs | 1 output | |
| Output items | Rotational speed | |
| Output range | Voltage output range | ±10/0-10/0-5/1-5 V (load of 4.7kΩ or more) |
| Current output range | 4-20mA (load of 560Ω or less) | |
| Accuracy | Voltage output ±0.1%F.S. or less/current output ±0.2% F .S. or less (23ºC)/temperature variation ±200ppm/ºC or less | |
| Analog output (W) Voltage (2CH) | ||
| Number of outputs | 2 outputs | |
| Output items | Rotational speed | |
| Output range | Voltage output range | ±10V (load of 4 .7kΩ or more) |
| Accuracy | Voltage output ±0.1%F.S. or less (23ºC)/temperature variation ±200ppm/ºC or less | |
| Contact output (C) Contact output (photo MOS relay), (O) Contact output (open collector) | ||
| Number of outputs | 4 outputs | |
| Refresh time | Analog synchronization/display synchronization switching | |
| Output items | Comparator | |
| Output circuit | (C) Photo MOS relay | Maximum load voltage (peak AC/DC) 350V, continuous load current (peak AC/DC) 80mA, output ON resistance 35Ω (typical) |
| (O) Open collector | NPN open collector, maximum load voltage 30V, maximum load current 15mA | |
| Communication (4) RS-485 (2) RS-232 (U) USB | ||
| Communication format | Serial communication | (4) RS-485/(2) RS-232/(U) USB |
| Communication speed | 9.6k/19.2k/38.4k bps | |
| Data length | 7/8 bit | |
| Parity bit | Null/even/odd | |
| Stop bit | 1/2 bit | |
| Character code | ASCII | |
| Digital output | ||
| Output items | Rotational speed | |
| Refresh time | Analog synchronization/display synchronization switching | |
| Digital output (T) BCD output (TTL), (P) BCD output (open collector) | ||
| Number of output digits | 6 digits + polarity | |
| Output circuit | (T) TTL | Output voltage 0-5V (output current ± 100mA, but ± 4mA/ch) |
| (P) Open collector | NPN open collector, maximum load voltage 30V, maximum load current 20mA/ch | |
| Digital output (N) CAN | ||
| Output circuit | CAN2.0B compliance | High-Speed CAN (ISO11898-2) |
| Communication speed | 1Mbps/500kbps/250kbps/125kbps | |
| Data format | Little endian/Big endian | |
| ID length | Standard 11bit/Extended 29bit | |
| Data format | Signed long (4 bytes) | |
| Output refresh time | Digital output refresh time/1/2/5/10ms | |
| General specification | ||
| Supplied power sources | (A) Power supply (AC) | AC100 to 240V ±10% (50/60Hz), (100V, 18VA or less, 240V, 24VA or less) |
| (D) Power supply (DC) | DC12 to 24V ±10% (10W or less) | |
| Electrical insulation | Insulation range | Sensor input – analog output – contact output – communication and digital output – supplied power sources |
| Protective structure | Front panel IP66 | |
| Operating temperature and humidity range | 0 to 50℃, 85%RH or less (with no condensation) | |
| External dimensions, Weight | W: 96 H: 48 D: 100 (D: 93 inside part) | |
| Approx. 230g (when equipped with all options) | ||
