ZT77 小型数字压力计 is a small digital pressure gauge produced by Kehua Gongkong. It uses semiconductor strain gauge and has the characteristics of high precision, high stability and high response speed.
The ZT77 is a compact digital pressure gauge that uses a semiconductor strain gauge and a high‑speed micro‑computer to deliver fast digital comparator functions. It offers corrosion‑resistant Co‑Ni alloy pressure sensors and ultra‑clean surface treatment for high durability and low particle emission.
The manual covers pressure ranges, accuracy, output options, cable specifications, connection thread sizes, and safety precautions, as well as optional features such as analog 4‑20 mA output and custom fittings. This manual is written in Japanese.
| Pressure range | 0‑300 kPa, 0‑20 MPa |
|---|---|
| Display accuracy | 1.0 %F.S. (1 digit) |
| Response speed (comparator) | ≤10 ms |
| Response speed (analog) | ≤1 ms |
| Output – comparator | 30 V DC, 80 mA max (open‑collector) |
| Analog output (optional) | 4‑20 mA DC |
| Operating temperature | -10 °C to 60 °C |
| Storage temperature | -20 °C to 70 °C |
The ZT77 can be configured for ranges such as 0‑300 kPa, 0‑500 kPa, 0‑1 MPa, 0‑2 MPa, up to 0‑20 MPa.
The gauge supports various thread sizes such as 174, 378 UR, VCR, SK, CVC, and standard VCR‑type connections.