Product Overview:

PM300 is a resistive (Pirani) vacuum transmitter with vacuum measurement, display, control, and transmission functions. It has the characteristics of small size, easy installation, and convenient use. The resistance gauge measurement adopts the constant temperature measurement method, which has high accuracy and fast response. Adopting a fully digital calibration method, easy to operate. Suitable for measurement and control of medium and low vacuum.

Technical parameters:

Applicable regulation: ZJ-52T resistance gauge

Measurement range: 1.0x10⁵~ 1.0x10^-1Pa

Effective control range: 2.5x10³~ 1.0x10^-1Pa

Control output form: Solid state relay output, normally open

Relay load: 30VDC/0.5A

Number of relay circuits: Two

Analog output form: 0~10V

Display: 4-digit digital display, scientific notation display

Serial communication: RS-485, Modbus RTU protocol

Refresh time: 0.5 seconds

Electrical interface: DB9 female head, RJ45 network port

Power supply: 24VDC ± 10%

Rated power: 2W

Operating environment: -10~40 ℃, humidity less than 85%

Dimensions: 77 * 56 * 41mm

Instrument weight: approximately 0.7Kg.

Dimensional drawing: