37. INTRODUCTION. DESCRIPTION. The DL250 is a hand-held, battery powered, digital multimeter with clamp-on current measuring capability. This instrument is. Digital Clamp-On Multimeter - read user manual online or download in PDF format. ueitest.com • email: info@ueitest.com. DL250. INSTRUCTION MANUAL.UEi Digital Clamp-On Multimeter User's Manual · DL389 G2PHOENIX PRO+ True RMS Clamp Meter · UEi Test and Measurement Instruments · DL49 Digital Clamp-On Meter E F. PAGE 1. INSTRUCTION MANUAL DL250 1-800-547-5740 • Fax: (503) 643-6322 ueitest.com • email: info@ueitest. PAGE 2. Introduction The DL250 Digital Clamp-on The DL250 Digital Clamp-on is the all-in-one test-tool that's designed to make quick work of HVAC/R service and industrial maintenance. UEi DL250 Portable Multimedia Player User Manual · 1. Clamp: Used to measure inductive AC current. Opens. to 1.25" (32 mm). · 2. Conductor Alignment Marks: Used