The Seaward PAT Checkbox 16 PAT Tester Calibration Verification Box is a reliable product designed for verifying the calibration of PAT testers. Made in the United Kingdom by the reputable brand Seaward, this verification box ensures accurate testing and measurement in industrial and business settings. With its specific design for PAT testers, this product provides a convenient and efficient way to maintain compliance with regulations and standards.
Seaward Checkbox 16 is a versatile, legacy electrical test instrument verification unit. It is explicitly designed to serve as an interim checkpoint for installation test instruments (such as Multifunction Testers or MFTs) to verify their ongoing functionality and accuracy between annual Seaward calibration cycles
Key Functions and Tests
The Checkbox 16 allows electricians to verify several core functions on their electrical testing kits:
Continuity check: Verifies accuracy against distinct 1Ω and 10Ω resistance thresholds.
Insulation resistance check: Ensures the tester's insulation measurement parameters function properly.
Phase-Earth Loop Linearity: Checks the accuracy of earth loop impedance tests across varied reference points.
RCD / RCCB testing: Verifies the trip times and parameters of Residual Current Device testers.
AC Voltage measurement: Benchmarks basic voltage readouts against a live supply.