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Terminal Boxes (VW) | Model 4999
Bộ dồn kênh bán tự động cho thiết bị quan trắc Geokon 4999
The Model 4999 Terminal Box allows instrument leads to be grouped in one convenient location, thereby saving time when readings have to be made on a number of instruments. Housed in a fiberglass enclosure, the Terminal Box provides a quick and easy means of taking sensor readings. The Terminal Box can handle up to sixteen 4-conductor sensors (e.g. 16 vibrating wire gages with their thermistors) or thirty-two 2-conductor sensors (e.g. 32 vibrating wire gages). Protection from lightning damage is provided by plasma surge arrestors and a suitable earth ground connection.
Switching Current 0.25 A typical, 4 A maximum
Contact Resistance 50 mΩ (maximum)
Insulation Resistance >10,000 mΩ
Switch Life >25,000 cycles
Enclosure NEMA 4X fiberglass
Temperature Range −20°C to +80°C
L × W × H¹ 4999-11-4S | 188 × 198 × 110 mm
4999-11-8S | 290 × 249 × 160 mm
4999-16VTS| 342 × 301 × 160 mm
4999-32VTS,4999-32VWS | 616 x 514 x 203 mm
¹Does not include mounting feet. Other sizes and configurations available (please contact GEOKON for details).