Seaward Powercheck 1557, Rugged Calibration Check Box

The PowerCheck 1557 is the only comprehensive PAT and Installation instrument verification system in one rugged, drop-proof enclosure.

A calibration checkbox acts as a known source to measure your instruments against in order to ensure they are still functioning within specification. It's recommended that this is done on a regular basis throughout the year, normally at least once a month. By doing this, many people are able to extend the life of the calibration of their test instruments, provided the test box is calibrated at regular intervals.

Seaward's Checkbox offers more features than it's competitors at a very competitive price. Incorporating an earth loop check, insulation check, continuity check, voltage check and RCD check for 18th Edition Testers, and earth bond check, insulation check, PE conductor current check and flash check for PATs.

Where some calibration checkboxes will trip an RCD on a circuit, the Seaward PowerCheck 1557 is protected from this happening. The checkbox is supplied with test record cards and a full instruction manual.

Key features of the PowerCheck 1557 are:

• Earth Continuity Check
• Insulation Check (3 points)
• Earth Loop Check (3 points)
• RCD Check
• Voltage Check
• Earth Bond Check (PATs)
• Insulation Check (PATs)
• PE Conductor Current Check (PATs)
• Flash Test Current (PATs)
• Built Into A Rugged Carry Case