User`s manual

7800 Series Hysteresisgraph System User's Manual
3-6 Installation
2. Electromagnet Site Preparation
The Hysteresisgraph requires one water supply line and one return line for cooling of the electromagnet.
The water connections are standard ¾-inch garden hose fittings, one female and one male. The 7-inch
electromagnet requires a continuous water flow of 11.4 liters per minute (3 gallons per minute) for full-
power operation of the system. The electromagnet is equipped with a flow switch that will prohibit output of
the power supply if the water flow falls below this specification. The 7-inch electromagnet with the
mounting structure weighs approximately 680 kilograms (1500 pounds).
3. Power Supply Site Preparation
The Hysteresisgraph requires one water supply line and one return line for cooling of the magnet power
supply. The water connections are standard 1/2-inch hose-barb fittings. The Model 665 Bipolar Magnet
Power Supply requires a continuous water flow of 8 liters per minute (2.2 gallons per minute) for full-power
operation of the system. The water temperature must be between 10
– 25 °C (50 – 77 °F).
CAUTION: If the cooling water is cold and the relative humidity is moderate to high, condensation can
occur on the cooling lines inside the power supply. This can cause severe damage to the power
supply. To avoid this, Lake Shore recommends use of a recirculating chiller with water
temperature control. If not, you must be cognizant of the water temperature and relative
humidity and periodically calculate the dew point to ensure condensation does not form.
The power supply includes a conduit box with screw terminals for ground and each of the three phases. This
power supply will require a separate three phase electrical supply line with ground (4-wire). Power supply
voltage is determined at the time of order: 208 VAC ±10%, 220 VAC ±10%, 380 VAC ±10%, or 400 VAC
+6% –10%, 50 or 60 Hz. Power consumption is 5 kVA. The customer is responsible for the power cabling
between the conduit box and the facility power. The Model 665 weighs 250 kg (550 lbs) and is 56
× 62 ×
119 cm (22 × 24.5 × 47 in.).
4. Instrumentation and Computer Preparation
The instrumentation will draw power from an outlet strip that is internal to the console. The console will
require a single 120V/60Hz electrical outlet in North America, or a 230V/50 Hz outlet in Europe and Asia.
The computer and monitor will require two additional 120V/60 Hz electrical outlets in North America, or
two additional 230V/50 Hz outlets in Europe and Asia. A separate, user supplied outlet strip may be used
for convenient on/off control of the computer and computer accessories.