Chapter Two: Installation Setu
23
Setup
Environmental Requirements
Follow these requirements when installing and using a 651 pressure controller.
1. Operating ambient temperature must be in the range of 15
°
to 40
°
C (15
°
to 35
°
C when
equipped with the optional valve failsafe battery backup).
2. Humidity must be kept between 0 and 95%, non-condensing.
3. Position the unit with proper clearance, to allow air cooling, so that the unit can operate
within the product temperature specifications listed above.
4. The 651 unit can be mounted in a panel cutout or in either a 9-inch deep or 12-inch deep
rack. (The optional valve failsafe battery backup requires 12 inches).
A. The RM-13 rack mount option supports a 9-inch deep rack.
B. The RM-14 rack mount option supports a 12-inch deep rack.
5. Power and fuse requirements for both the low power and high power units are listed in
Checking the Fuses and Line Voltage Selector Switch
, page 24.
Caution
A. Check to make sure the voltage setting is correct for your local
electrical source.
B. Check to make sure the fuse type is appropriate for your voltage
setting.
6. A solid system ground should be maintained for proper operation and safety to personnel.
For additional Type 651 controller requirements refer to
Appendix A: Product Specifications,
page 113
.
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