Micro pressure and differential pressure pressure switch using high-precision, temperature-compensated silicon-type piezoelectric pressure sensor.
A pressure switch suitable for controlling gauge pressure or differential pressure from ±250Pa to ±200kPa, with relay ON/OFF output. When the set threshold is exceeded, the built-in relay activates, the LED on the front of the switch lights up, and an alarm sounds from the built-in buzzer. The alarm can be set to activate when the measured value exceeds or falls below the set threshold. It is possible to choose from one or two threshold operation modes. By adopting a high-precision silicon-type piezoelectric pressure sensor with temperature compensation, excellent linearity, reproducibility, and long-term stability are achieved. The auto-zero function of the low-range model (HD402TR1L) enables stable measurements without the need for recalibration over long periods. The HD402TR□L series pressure switches are equipped with a 4-digit LCD display, and all models allow for the selection of measurement units. The high stability against sensor aging and temperature changes significantly reduces maintenance work for aging drift and zero-point correction. ▲ Adoption of high-precision, temperature-compensated silicon-type piezoelectric pressure sensor ▲ C contact (NC/NO) relay output, standard equipped with 4-digit LCD display ▲ Threshold, hysteresis, and delay time settings available, auto-zero function
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basic information
○Measurement range: Gauge pressure and differential pressure from 0 to 250 Pa and from 0 to 200 kPa (refer to Table 1 in the catalog) ○Resolution: (refer to Table 2 in the catalog) ○Accuracy (at 25°C): [HD402TR2L] ±0.75% FS ○Accuracy (excluding 25°C, at 0 to 50°C): [HD402TR1L] ±(0.8% rdg + 0.5) Pa [HD402TR2L, HD402TR3L, HD402TR4L, HD402TR5L] ±1% FS ○Long-term stability (1000 hours at 25°C): [HD402TR1L] ±0.2 Pa (with auto-zero function) [HD402TR2L] ±0.5% FS [HD402TR3L] ±0.35% FS [HD402TR4L, HD402TR5L] ±0.25% FS ○Alarm function: Front LED display, built-in buzzer, and relay output ○Output: SPDT relay switch output (3A/AC250V, 3A/DC30V, resistive load) ○Setting items: Measurement unit, threshold, hysteresis value, delay time, and alarm operation mode ○Response time: Display update = 0.5 seconds, transmitter output = configurable to 0.125, 1, 2, or 4 seconds
Price range
P2
Delivery Time
Applications/Examples of results
Pipeline installation for marine applications
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Company information
Sakaki Corporation provides products and services from leading European manufacturers such as "Sensirion (formerly Delta Ohm) (formerly Glaesinger)", "Senseair", "Z-LAZER", and "LSI Lastem" as the official importer and distributor in Japan. Additionally, we develop, support, and undertake custom development and mass production of our own brand network IoT products, including routers and gateways that support camera video and solar power cloud services.