Wavetek Meterman Catalog Data Sheet. RS-St.No. 450-5278. Model 37XR. Autoranging Digital Multimeter fuse, and Operating Instructions. Take the above example again, the Meterman 37XR would drop a whopping 2V (10mV*200) on its mA range for 200mA. Not much good when your supply voltage is 1. Review the operating instructions to ensure the meter is being used properly. 2. Inspect and test the continuity of the test leads. 3 Sometimes you just really want to have a manual-only meter and this fits the bill nicely. Sure, most auto-ranging meters have a manual mode, but it involves aView online Operation & user's manual for Meterman 37XR Multimeter or simply click Download button to examine the Meterman 37XR guidelines offline on your True RMS digital multimeter with component and logic test for troubleshooting electronics at the bench or on the job site. 37XR Specifications (at 23 °C ± 5 Manuals and User Guides for Meterman 37XR. We found 4 manuals for free downloads: Owner's manual, Specification, User manual. Meterman 37XR User manual.