PIE 334 4-20 mA Loop Calibrator

Overview

The PIECAL 334 is a dedicated 4–20 mA loop calibrator for sourcing and reading loop current, simulating two-wire transmitters, and powering transmitters while measuring. Ranges cover 0.00 to 24.00 mA or −25.0 to 125.0% of 4–20 mA, with EZ-CHECK cardinal points at 4 and 20 mA specified to ≤ ±(0.025% of span).

Loop compliance is ≥ 24 DCV @ 20.00 mA with drive capability of 1200 Ω at 20 mA. Also reads DC volts for checking supplies and controller outputs. Rugged rubber boot and simple controls suit everyday instrument tech work.

Made in the USA; calibrated on NIST-traceable equipment with Certificate of Calibration.

Features (PIE)

• Source: 0.00 to 24.00 mA and −25.0 to 125.0% of 4–20 mA.
• Read: 0.00 to 52.00 mA, and −99.99 to 99.99 V.
• Transmitters: simulate 2-wire transmitters, or power and read them.
• Accuracy: ±0.025% of span at the 4.00 and 20.00 mA EZ-CHECK outputs.
• Build: rubber boot and attached test leads included; low-profile switches resist accidental damage.
• Batteries: four AA batteries in a separate compartment, changed without tools.

PIE designed the 334 as a direct replacement for Altek 334 models; it comes from the original Altek calibrator team.

Optional accessories (PIE part numbers)

• AC adaptor: 120 V (020-0101) or 240 V (020-0100)
• Deluxe hands-free carrying case (020-0211)
• NiMH batteries and charger, 100 to 240 VAC, North American plug (020-0103)

Documentation (PIE)

PIE publishes a datasheet, operating instructions and field calibration procedures for the 334.

For current-leak detection and automated loop checks, see the PIE 334Plus. Browse all process calibrators.

Specifications

Documents

• datasheetPIE 334 4-20 mA Loop Calibrator Datasheet