V91 Estim

| Feature | V91 Estim (Legacy) | Fluke 1587 FC | Advantage | | :--- | :--- | :--- | :--- | | | 200mA (Robust) | 1.2mA (Low energy) | V91 (Better for switches) | | Data Logging | Manual (RS232 via dock) | Bluetooth + App | Fluke | | Battery Life | 12 hours (Heavy draw) | 120 hours | Fluke | | Repair Cost | Low (Discrete components) | High (Proprietary ASIC) | V91 | | Display Size | 2.5 inches | 3.9 inches | Fluke |

| Error Code | Meaning | Fix | | :--- | :--- | :--- | | | Internal battery voltage <6.5V during test | Replace batteries (NiMH preferred) | | E-024 | External voltage present on continuity loop | Disconnect test leads. The DUT is live (>50V). | | E-088 | Flash memory corruption | Hard reset: Remove batteries for 10 min. Reinsert while holding "TEST." | | CAL Err | Calibration checksum mismatch | Return to service center. Do not use for safety tests. | 6. V91 Estim vs. Modern Digital Meters (Fluke/Keysight) Is the v91 estim obsolete? Not entirely. Let's compare it to a modern Fluke 1587 FC. v91 estim

A: On the 2 Ohm range, approximately 8.5 Amps for 1 second. | Feature | V91 Estim (Legacy) | Fluke

Date: October 26, 2023 | Category: Industrial Measurement & Calibration Reinsert while holding "TEST