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- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDYM-3F is a high-precision, all-digital multifunctional field calibrator designed for on-site, live-circuit calibration of single/three-phase energy meters, voltage/current meters, power meters, and phase meters. It integrates energy calibration, electrical parameter measurement, harmonic analysis, and wiring error diagnosis into one rugged, portable unit.
Powered by five low-power ARM chips (total >1GIPS) and running Windows CE, it delivers simultaneous calculation of full-wave, fundamental, and up to 51st harmonic parameters. The 7” 16:9 industrial TFT touchscreen displays all parameters on a single screen without page flipping. With 144-type wiring error recognition, dual pulse detection, and CT ratio testing via clamps, it’s ideal for power utilities, industrial plants, and metering departments for accuracy verification, anti-theft inspection, and routine maintenance.
Specifications
| Parameter | Specification |
| Voltage Range | 0–440V；±0.05% accuracy |
| Current (Terminal) | 0.025–12A；±0.05% accuracy (5A rated) |
| Current (Clamp) | 5A/100A/500A/1000A；±0.5% accuracy |
| Power/Energy Accuracy | ±0.05% (terminal)；±0.5% (clamp) |
| Frequency Range | 45–65Hz；±0.01Hz error |
| Phase Angle | 180°~180°；±0.1° error |
| Harmonic Analysis | 2nd–51st order；THD measurement |
| Wiring Diagnosis | 144 types (48 + 96) |
| Display | 7” 16:9 TFT color touchscreen |
| Data Storage | 2G；10,000+ records；USB export |
| Power Supply | Liion (8hrs)；AC 55–600V |
| Dimensions | 320×240×120mm |
| Weight | ~3kg |
| Operating Temp | 10°C ~ +40°C |
| Compliance | DL/T 825, IEC 62056, CE |
Applications
Core Test Objects
· Energy meters: 1-phase/3-phase 3-wire/4-wire;1A/5A active/reactive meters
· Indicating meters: Voltmeters, ammeters, power meters, phase meters
· LV CTs: 5A/100A/500A/1000A ratio, error, polarity testing
· Distribution circuits: Wiring verification, anti-theft inspection, harmonic monitoring
Typical Usage Scenarios
· Meter acceptance & periodic calibration: Ensure billing accuracy
· Live troubleshooting: Identify wiring errors without shutdown
· Anti-theft-of-electricity: Detect tampering, bypass, or abnormal CT connections
· Power quality analysis: Harmonic, unbalance, and waveform assessment
· Training: Simulate 144 wiring faults for technician skill development
Advantages
All-In-One Field Calibration
Calibrate meters + measure parameters + analyze harmonics + diagnose wiring → one unit replaces multiple devices
0.05% Lab-Grade Accuracy On-Site
±0.05% terminal accuracy → reliable metering-grade results for billing
144 Wiring Error Auto-Diagnosis
Covers all common fault types → fast on-site wiring verification & correction
Live-Circuit, No Shutdown Testing
No disconnection → zero downtime, safe & efficient
7” Single-Screen Operation
All parameters visible at a glance → minimal training, fast operation
FAQ
Q: Can it calibrate meters while the circuit is live?
A: Yes. It supports live, energized calibration without disconnecting the load.
Q: How many wiring errors can it detect?
A: 144 total: 48 for 3-phase 3-wire, 96 for 3-phase 4-wire systems.
Q: Does it work with different CT ratios?
A: Yes. It supports 5A/100A/500A/1000A clamps for direct LV CT ratio testing.
Q: Is training required for operation?
A: Minimal. The 7” touchscreen has intuitive menus; one-key calibration for basic tests.
Q: What’s included in the standard package?
A: Main unit, 3×5A current clamps, voltage test leads, photoelectric pulse sensor, USB drive, PC software, Li-ion battery & charger, user manual, hard carry case.
