Martel Electronics 311A-3000G

Martel BetaGauge 311A [BG311A-3000PSIG] Pressure Calibrator, 0 to 3000 PSIG.

The Martel BetaGauge 311A is a high-performance pressure calibrator engineered to streamline pressure calibration in demanding industrial environments. Designed with an internal stainless steel sensor, this model offers 0.025% FS accuracy across its 3000 PSIG range, backed by full temperature compensation to ensure reliable results in the field.

The BetaGauge 311A supports electrical input measurements such as 4-20 mA, voltage, switch contacts, and RTD probes, making it suitable for calibrating a broad range of pressure and process instruments. Its large backlit LCD can simultaneously display up to three inputs, providing a user-friendly interface for technicians and engineers.

For extended functionality, the 311A is compatible with BETA Port-P external pressure modules, giving you access to absolute, differential, and other ranges. A key highlight is its ability to measure and display pressure in 19 selectable engineering units, enhancing its flexibility in multi-standard environments.

Looking to understand more about pressure calibration workflows? Check our article:
👉 Pressure Calibrators Explained: How to Ensure Process Accuracy in Industrial Settings

Key Specifications:

• Pressure Range: 0 to 3000 PSIG

• Accuracy: ±0.025% of full scale

• Sensor Type: Isolated stainless steel

• Display: Large graphic LCD with backlight

• Inputs Supported: Pressure, 4-20 mA, Voltage, RTD, Switch

• Engineering Units: 19 selectable

• RTD Accuracy: ±0.1°C

• Memory: Stores up to 5 user-defined setups

• Power: 4 x AA Batteries

• Interface Ports: P1 Pressure Port

• Intrinsically Safe Version Available

Included Accessories:

• (4) AA Batteries

• (1) NIST-Traceable Calibration Certificate

• (1) Test Leads

• (1) Soft Carrying Case

• (1) User Guide

Product Dimensions & Info:

• Weight: 1 lb

• Dimensions (H x W x L): 8.3 in x 3.9 in x 1.8 in

• Country of Origin: China

• HTS Code: 9030.39.0100

• ECCN: EAR99

• Calibration Included: NIST Certificate

Why Choose the Martel BetaGauge 311A?
Whether you’re working with pressure transmitters, digital manometers, or loop-powered devices, the BetaGauge 311A is built for accuracy, reliability, and multi-functionality. If you\’re calibrating process sensors in industrial or lab environments, this is one of the best options on the market.

Explore more on how to calibrate process devices using tools like this in our guide:
👉 How to Calibrate a Pressure Transmitter Using a Loop Calibrator

Also, consider other compatible devices from our General Pressure Calibrators category for expanded options.