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Loop Calibrators

Loop calibrators source and measure the 4-20 mA current loop signals that carry most process measurements between the field and the control system.

Druck, PIE, Ashcroft and Fluke cover this range. The functions that matter are sourcing a precise current to drive an indicator or valve, measuring loop current without breaking the circuit, and simulating a transmitter so the loop can be exercised from the field. Many units also supply 24 V loop power, which removes the need for a separate supply during bench work. Check whether you need intrinsically safe certification for classified areas, and whether HART communication is required alongside the analog signal.

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PIE 334-F-VIP Loop Calibrator Kit with Free Flashlight & Labels

The PIE 334-F-VIP is a high-precision loop calibrator that sources and reads mA, reads voltage, and simulates 2-wire transmitters. Accurate to ±0.025% of span, it includes a rugged boot, attached test leads, and a free flashlight and calibration labels.

The Druck DPI802PD-15-1500 is a high-accuracy digital pressure gauge offering ±0.025% of reading accuracy and a 0-1500 psi range. Intrinsically safe and rugged, it’s ideal for pressure calibration and measurement in hazardous industrial environments.
Druck DPI802PS-50 Loop Calibrator with Pressure Generation
The Druck DPI802-5 is a versatile loop calibrator from the DPI 800 Series, combining pressure measurement and loop calibration in one rugged handheld. Ideal for transmitter calibration, loop setup, and switch verification, it delivers reliable all-inclusive accuracy in demanding environments.
Druck DPI802PS-50 Loop Calibrator with Pressure Generation
The Druck DPI802PS-2000 is a versatile loop calibrator and pressure calibrator, ideal for calibrating transmitters and switches. It offers single or dual range pressure measurement with high accuracy and reliability, making it a trusted tool for industrial maintenance and calibration tasks.
Druck DPI802PS-50 Loop Calibrator with Pressure Generation
The Druck DPI 842 is a versatile loop calibrator from the DPI 800 series, offering mA measure, source, and switch test functions, plus a frequency generator with three waveforms. It features a large backlit display, HART loop resistor, and compatibility with IDOS pressure modules for comprehensive field calibration.
Druck DPI802PD-30-3000 Pressure Calibrator with Digital Display
The Druck DPI802PD-30-3000 is a portable pressure calibrator offering high accuracy and stability for demanding industrial applications. With a user-friendly digital display and pressure generation capabilities, it is ideal for transmitter calibration, loop set-up, and switch verification.
PIE 334PLUS-L-VIP Loop Calibrator with HART Compatibility
The PIE 334PLUS-L-VIP is a high-accuracy loop calibrator for sourcing and reading mA, simulating 2-wire transmitters, and detecting loop leakage. With 0.025% accuracy, HART resistor, and EZ-CHECK switch, it streamlines calibration tasks.
Ashcroft AM21CADINWCXXXA Loop Calibrator, 0-10000 psi, 1/2 NPT
The Ashcroft AM21CADINWCXXXA is a high-accuracy loop calibrator designed for demanding industrial environments. Featuring a 0-10000 psi range, 1/2 NPT connection, and 316 stainless steel diaphragm seal, it ensures reliable pressure measurement and calibration. Ideal for process control and maintenance applications.
Druck DPI802PS-1 Pressure Calibrator with Loop Calibration
The Druck DPI802PS-1 is a portable pressure calibrator offering high accuracy and stability for pressure measurement and loop calibration. Ideal for industrial maintenance, it combines pressure generation and electrical loop testing in one rugged handheld device.
Druck DPI802PS-50 Loop Calibrator with Pressure Generation
The Druck DPI802-150 is a high-accuracy digital pressure calibrator offering ±0.025% FS accuracy and a wide range from -1 to 150 bar. Rugged, portable, and intuitive, it is ideal for demanding industrial calibration and loop testing applications.
PIE 334-T-VIP Loop Calibrator Kit with Vibration Test & Accessories
The PIE 334-T-VIP is a versatile loop calibrator kit for industrial maintenance. It sources and reads mA, reads voltage, simulates 2-wire transmitters, and includes a vibration sensor test function. Accurate to ±0.025% of span, this rugged kit comes with a rubber boot, test leads, and free accessories.
Druck DPI802PS-50 Loop Calibrator with Pressure Generation
The Druck DPI802PS-150 is a portable pressure calibrator offering high accuracy and stability for critical measurements. Ideal for transmitter calibration, loop set-up, and switch verification, it features pneumatic pressure generation and measurement in a rugged, reliable design.
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