User`s manual

7800 Series Hysteresisgraph System User's Manual
Installation 3-1
CHAPTER 3
INSTALLATION
3.0 GENERAL
The 7800 Series Hysteresisgraph System was electrically and mechanically inspected and operationally tested
prior to shipment. It should be free from mechanical damage and in perfect working order upon receipt. Please
read the entire 7800 Series User’s Manual before attempting to operate the system.
3.1 SITE REQUIREMENTS
The Customer is responsible for site preparation. Plan and prepare the site before the 7800 Series System arrives.
Be sure to consider physical location, structural integrity, environment, cooling water, power, safety, and local
building, electrical, and safety codes prior to site selection. General 7800 Series site requirements are provided in
Paragraph 3.1.1. Requirements specific to the Model 7804 are provided in Paragraph 3.1.2 Model 7807 in
Paragraph 3.1.3, and Model 7810 in Paragraph 3.1.4.
3.1.1 General 7800 Series Site Requirements
1. Physical Location
Adequate for system installation, operation, potential expansion, service, and storage of supplies. Space and
layout requirements depend on the model selected. There are no special height requirements. Especially
important is sufficient access for a lift to move and place an electromagnet. Place the magnet in an area free
from major vibration from motors, pumps, forklifts, etc.; as it may interfere with system operation. If
necessary, shim the magnet to level it. Perform a complete check of the magnet and magnet power supply
before proceeding with installation.
2. Structural Integrity
Level floor strong enough to support anticipated loads and free from extraneous vibrations or magnetic
fields. Vibrations transmitted to consoles may degrade system performance. Typical weights are 215 kg
(475 pounds) for the 4-inch, 682 kg (1500 pounds) for the 7-inch, and 1800 kg (3970 pounds) for the
10-inch magnet. In general, a concrete ground floor is preferred over a higher floor. Proper lifting
equipment to move the heavy magnet to the final location is also required.
3. Environmental Requirements
To meet and maintain specifications, operate the Hysteresisgraph System at an ambient temperature range
between 18
– 28 °C (64 – 82 °F). Operate within the range of 15 – 35 °C (59 – 95 °F) with less accuracy.
Although no specific humidity or altitude specifications exist, relative humidity of 20% to 80% (no
condensation) and altitudes from sea level to 2.4 km (8,000 feet) are generally acceptable. For best
accuracy, use system in a temperature and humidity controlled environment.
NOTE: Ambient temperature changes will change the measured results for certain materials with low Curie
temperatures/high temperature coefficients of induction, including Ferrite + NdFeB compounds.
Temperature monitoring equipment is employed in the system to record temperature at time of
measurement for later examination and reconciliation.
The air-conditioning system should filter dust and other particulates to reasonable levels. Consult an air-
conditioning expert about special filtering if salt air, corrosive gases, or other air pollutants exist. There
should be no direct flow of ventilation aimed at the equipment as this tends to effect the temperature
stability of test specimens. Also, there should be no equipment placed next to the Hysteresisgraph System
that would emit or be susceptible to high levels of magnetic interference (distribution boxes, welding
equipment, capacitive discharge magnetizers, vibration equipment, x-ray machines, etc.).
4. Cooling Water Supply
A cooling water supply is required for the electromagnet and power supply. Required water flow rates are
specified in Paragraphs 3.1.2 – 3.1.4. The supply pressure for all magnets is 240
– 700 kPa (35 – 100 psig).