Tester 9V for wristbands

Product Overview

This compact unit, the DESCO 222504, is a portable tester for personnel wrist straps. The DESCO 222504 is designed to verify continuity and resistance in wrist straps using a 9 V test voltage and a 9 V PP3 alkaline battery power supply. The device indicates the result via LED indicators and an audible alarm for pass, fail-high, fail-low, and low battery.

Documentation

Desco provides technical bulletin TB-7507 with installation, operation, and maintenance instructions for this type of compact tester. See manufacturer's datasheet

Typical Applications

• Testing of personnel wrist straps to verify that the strap and circuit resistance are within specified limits.

Features and Operation

• 9 V PP3 alkaline battery operated for mobile use.
• LED and audible indication for pass, fail (high/low), and low battery.
• Test limits specified at 750 kilohms to 35 megohms with a test accuracy of ±10%.
• Desco recommends annual calibration and offers an original calibration certificate that can be downloaded from the product's product page (cf. TB-7507).

Specifications

• Model: DESCO 222504
• Function: Compact wrist strap tester for personnel wrist straps
• Power supply: 9 V alkaline PP3 battery
• Test limits: 750 kilohms to 35 megohms (fail-high 35 MΩ; fail-low 0.75 MΩ)
• Test accuracy: ±10%
• Typical battery life: 3,500 tests
• Operating temperature: 5 to 30 °C
• Dimensions: 115 mm x 70 mm x 26 mm
• Weight (excluding battery): 0.1 kg
• Environmental requirements: Indoor use, max. altitude below 2 km; maximum relative humidity 80% at 30 °C, decreasing to 50% at 30 °C
• Country of origin: United States of America
• Includes: 1 Compact Wrist Strap Tester and 1 9 V PP3 alkaline battery (cf. TB-7507)

Source: TB-7507 technical bulletin from Desco Industries (see datasheet above).

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