SPT - Gossen LunaPro Service
Complete technical service documentation for the Gossen LUNA-PRO light meter. This guide provides precise adjustment locations (low/high range, low/high light) with corresponding adjustment values for EV1, EV7, and EV15 models, along with detailed adjustment sequences achievable without disassembly. Comprehensive disassembly procedures for accessing electronic circuits are included, with safety guidelines for PX-13 battery handling. The troubleshooting section addresses typical battery drain patterns (0.1-0.32 mA high range, 30-50µA low range) and common needle movement issues affecting the galvanometer. Systematic diagnosis of frequent faults covers dirty CdS photocells, defective galvanometers, and hairspring problems. Technical specifications are provided, including photocell resistance (EV14 at 260 ohms) and galvanometer coil resistance (2.8K). Detailed circuit board and assembly photographs aid component identification and diagnostics. Information on available replacement parts and exchange procedures for defective assemblies ensures field technicians have complete support for restoring instrument functionality.
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Document Details
- Format
- Pages
- 1
- Size
- 10.0 MB
- Category
- Photography