CF 52A
6
Mar 2014
3.3 Procedure to Adjust Scaling for Engineering Units
Step 1
Apply power and allow the amplifier to warm up for 10-15 minutes.
Step 2
With zero load or pressure on the transducer, adjust the ZERO potentiometers to indicate the
desired zero on the readout instrument.
Step 3
Connect a jumper across PINS 5 & 6 of the power terminals (See Figure 1-1) or wire in a switch
as shown in the wiring section. Adjust the SPAN potentiometer to the calculated voltage or calculated
units on the readout instrument.
Step 4
Disconnect the shunt cal jumper or release the shunt cal switch and repeat steps 2
& 3 if needed.
Warranty
Limited Warranty on Products
Any Cooper Instruments product which, under normal operating conditions, proves defective in material or in
workmanship within one year of the date of shipment by Cooper will be repaired or replaced free of charge
provided that a return material authorization is obtained from Cooper and the defective product is sent,
transportation charges prepaid, with notice of the defect, and it is established that the product has been properly
installed, maintained, and operated within the limits of rated and normal usage.
Replacement or repaired product will be shipped F.O.B. from our plant. The terms of this warranty do not extend
to any product or part thereof which, under normal usage, has an inherently shorter useful life than one year.
The replacement warranty detailed here is the buyer’s exclusive remedy, and will satisfy all obligations of Cooper
whether based on contract, negligence, or otherwise. Cooper is not responsible for any incidental or
consequential loss or damage which might result from a failure of any and all other warranties, express or implied,
including implied warranty of merchantability or fitness for particular purpose. Any unauthorized disassembly or
attempt to repair voids this warranty.
Obtaining Service under Warranty
Advance authorization is
required
prior to the return to Cooper Instruments. Before returning the item, contact
the Repair Department c/o Cooper Instruments at (540) 349-4746 for a Return Material Authorization number.
Shipment to Cooper shall be at buyer’s expense and repaired or replacement items will be shipped F.O.B. from
our plant in Warrenton, Virginia. Non-verified problems or defects may be subject to a $150 evaluation charge.
Please return the original calibration data with the unit.
Repair Warranty
All repairs of Cooper products are warranted for a period of 90 days from date of shipment. This warranty applies
only to those items that were found defective and repaired; it does not apply to products in which no defect was
found and returned as is or merely recalibrated. It may be possible for out-of-warranty products to be returned
to the exact original specifications or dimensions.
* Technical description of the defect: In order to properly repair a product, it is
absolutely necessary
for Cooper to
receive information specifying the reason the product is being returned. Specific test data, written observations
on the failure and the specific corrective action you require are needed.