TDP-39 series digital panel meter with enhanced performance, backward compatibility, multi-signal input support, comparator output, optional analog and RS-485 communication, and improved resolution for accurate industrial measurement and control applications.
The TDP-39 series digital panel meter is designed with enhanced performance and improved functionality, and backward compatibility is maintained to ensure easy replacement and seamless system integration. As a result, higher performance is achieved while the same ease of use is preserved.
Moreover, various input signals are supported, including open collector signals, voltage pulse signals, and AC signals, and therefore flexible connection with different sensors is enabled. As a result, the device can be used for frequency measurement, tachometers, flow meters, and speedometers.
In addition, A/B phase signals, UP/DOWN pulses, and directional signals are supported, and reversible measurement is enabled. Therefore, both forward and reverse motion can be detected accurately, while system capability is expanded.
Furthermore, a 2-channel comparator output is provided as standard, and additional monitoring functionality is achieved. Optional analog output and RS-485 digital communication are also supported, so integration into control systems is simplified.
Compared to previous models, improved input frequency range, higher input resolution, faster analog output update time, and enhanced output resolution are achieved. In addition, compatibility with LINKSHIP configuration software is provided, so system setup and parameter adjustment are simplified.
Overall, the TDP-39 series digital panel meter provides improved performance, flexible input support, and reliable operation, so it is well suited for industrial measurement, monitoring, and control applications.
Specifications
| name | Universal tachometer |
| Model | TDP-4921 (push switch type)
TDP-4931 (digital switch type) |
| Measurement method | Periomatic™ B system |
|
| Input points | 1 point |
| Input frequency range | 0.0006Hz to 4MHz (single phase signal) /
0.0006Hz to 1MHz (A/B phase signal) |
| Measurement resolution | 26ns |
| Input method | ① Single-phase signal → Trigger direction: Falling edge
② UP/DOWN signal → Trigger direction: Falling edge
③ A/B phase signal → Trigger direction: Falling edge / Rising edge
④ Directional signal (speed input) → Trigger direction: Falling edge
Directional input → Trigger direction: Falling edge / Rising edge
*Set in program mode |
| Input pulse width | Both H and L levels are 100 ns or more. |
| Input signal | ① Logic Input: High level 4V or higher, Low level 1V or lower
② Zero Crossing Input: AC signal with input sensitivity of ±40mV or higher |
| Input circuit | A (UP) signal input function:
Pull-up ON/OFF (Pull up to +5V with approx. 6kΩ / Pull down to GND with 10kΩ)
Logic / zero-crossing switchable
LPF circuit (150kHz (-3dB, -6dB/oct) / 15kHz (-3dB, -6dB/oct))B (DOWN) signal input function:
Pull-up ON/OFF (Pull up to +5V with approx. 6kΩ / Pull down to GND with 10kΩ)
Logic signal only
*Set in program mode |
| Input voltage tolerance | ±30V |
| Input connector | Terminal block, 7.62mm pitch, M3 free terminal screws. |
| Power output for sensor | (Standard) TDP-49×1: +12V±10% 150mA max
(Optional) TDP-49×1-L: +5V±10% 200mA max |
