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Notes

EMCO5M1001

8

RECOMMENDED PRACTICES AND WARNINGS

United Electric Controls Company recommends careful consideration of the following
factors when specifying and installing UE pressure and temperature units.  Before
installing a unit, the Installation and Maintenance instructions provided with unit must
be read and 
understood. 

•  To avoid damaging unit, proof pressure and max temperature limits stated in lit-

erature and on nameplates must never be exceeded,  even by surges in the system.
Operation of the unit up to proof pressure or max  temperature is acceptable on a limited
basis (i.e.start-up, testing) but continuous operation must be restricted to the designated
adjustable range. Excessive cycling at proof pressure or maximum temperature limits
could reduce sensor life.

•  A back-up unit is necessary for applications where damage to a primary unit

could endanger life, limb or property. A high or low limit switch is necessary for appli-
cations where dangerous runaway condition could result.

•  The adjustable range must be selected so that incorrect, inadvertent or malicious

setting at any range point can not result in an unsafe system condition.  

•  Install unit where shock, vibration and ambient temperature  fluctuations will not

damage unit or affect operation. Orient unit so that moisture does not enter the enclo-
sure via the electrical connection.  

• Unit must not be altered or modified after shipment. Consult UE if modification is

necessary.  

•  Monitor operation to observe warning signs of possible damage to unit, such as

drift in set point.  Check unit immediately.

•  Preventative maintenance and periodic testing is necessary for 

critical applications where damage could endanger property or personnel.

• For all applications, a factory set unit should be tested before use.

• Electrical ratings stated in literature and on nameplate must not be exceeded.

Overload on a switch can cause damage, even on the first cycle.  Wire unit according to
local and national electrical codes, using wire size recommended in installation sheet.

•  Use only factory authorized replacement parts and procedures. 

•  Do not mount unit in ambient temp. exceeding published limits.

•  For remote mounted temperature units, capillary lengths beyond 10 feet can

increase chance of error, and may require re-calibration of set point and indication.

LIMITED WARRANTY

Seller warrants that the product hereby purchased is, upon delivery, free from defects in
material and workmanship and that any such product which is found to be defective in such
workmanship or material will be repaired or replaced by Seller (F.O.B. UE Watertown); pro-
vided, however, that this warranty applies only to equipment found to be so defective within
a period of 18 months from the date of manufacture by the Seller (36 months for the
Spectra 12 and One Series products). Seller shall not be obligated under this warranty for
alleged defects which examination discloses are due to tampering, misuse, neglect, improp-
er storage, and in any case where products are disassembled by anyone other than autho-
rized Seller's representatives. 
EXCEPT FOR THE LIMITED WARRANTY OF REPAIR AND REPLACEMENT STATED
ABOVE, SELLER DISCLAIMS ALL WARRANTIES WHATSOEVER WITH RESPECT TO THE
PRODUCT, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE

LIABILITY LIMITATION

The sole and exclusive remedy of buyer for any liability or seller 
for any claim, including incurred in connection with (I) breach of any warranty whatso-
ever expressed or implied, (II) a breach of contract, (III) a negligent act or acts (or negli-
gent failure to act) committed by seller, or (IV) an act for which strict liability will be
imputed to seller, 
is limited to the limited warranty or repair and replacement stated herein.  In no event
shall the seller be liable for any special, 

indirect, consequential or other damages of a like general nature,
including,  without limitation, loss of profits or production, or
loss or expenses of any nature incurred by any third party.

U N I T E D   E L E C T R I C  

C O N T R O L S

180 Dexter Avenue, P.O. Box 9143
Watertown, MA  02471-9143   USA
Telephone: 617 926-1000    Fax: 617 926-2568

http://www.ueonline.com

Summary of Contents for 800

Page 1: ...unting 800 or 802 type controls it may be necessary to remove adjustment knob and front cover The knob is secured with a 5 64 Allen Setscrew The cover is secured by four screws at the corners MOUNTING The controller may be mounted in any position to either a surface or panel 1 4 thick maximum Locate it where vibration shock and ambient temperature fluctuations are minimal It is recom mended that m...

Page 2: ... 2B Optional terminal block wiring is available for single or dual switch controls option M100 See Figure 2C To Surface Mount Explosion Proof Types 820E and 822E type units must be surface mounted Drill mounting holes per Figure 1C Option M449 Attach 2 mounting ears found in separate package to recessed areas on back side of enclosure by means of 2 self tapping screws Mount to surface per Figure 1...

Page 3: ...t together within 5 of the dial range Turning the knob positions both switch simultaneously maintain ing a constant separation between switches Replace cover and adjustment knob if removed during installation Controller is ready for operation Turn setting pointer to desired control temperature and start up the process To suit particular process conditions or for greater controller accuracy it may ...

Page 4: ...ct test lights to indicate switch operation or listen for the individual switch clicks Note The adjustment knob slides off adjustment shaft for all controls except the 802 The 802 requires a 5 64 allen wrench Be sure to replace gasket when re assembling In Process Adjustments Use an accurate test thermometer such as a thermocouple with its probe mounted directly to the center of the sensing bulb B...

Page 5: ...itch assembly to pivot post Part III Replacements The set point of switch 1 is determined by the red Adjustment Pointer The set point of switch 2 may be adjusted by up to 25 of the range span below the switch 1 set point by turning adjust ment D in clockwise See Figure 4 The set point of switch 2 should not be above that of switch 1 To align switch 1 to the Adjustment Pointer loosen adjustment A a...

Page 6: ...mounting screws the switch and the insulator 3 Remove leadwires from switch and transfer to new switch 4 Install insulator with new switch and mount in control 5 Install terminal block and adjust temperature setting per PART II Dual Switch Types 1 Remove die cast aluminum cover unscrew and remove terminal block and insulator letting terminal block hang 2 Unscrew terminal block supports and remove ...

Page 7: ...Dimensions 800 Series 820E 822E ...

Page 8: ...s using wire size recommended in installation sheet Use only factory authorized replacement parts and procedures Do not mount unit in ambient temp exceeding published limits For remote mounted temperature units capillary lengths beyond 10 feet can increase chance of error and may require re calibration of set point and indication LIMITED WARRANTY Seller warrants that the product hereby purchased i...

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