Ashcroft 2265 Operating Manual

Installation and Maintenance Instructions for
˝
BLACKBLUEBROWNGREEN/YELLOW
CABLE
HIGH AND LOW (XED)
LOW HIGH
DOUBLE HIGH (XEE)
LOWEST HIGHEST
DOUBLE LOW (XEF)
LOWEST HIGHEST
OFF HIGH AND LOW (XEG)
LOW HIGH
ASHCROFT®Type 2265 Electrical Contacts
ELECTRICAL CONTACT SWITCHING CAPACITY:
250V maximum voltage 30W DC maximum switching power 50VA AC maximum switching power 1A maximum current
Accuracy with no magnet effect, see paragraph #3
DURAGAUGE® PRESSURE GAUGE DURATEMP
FUNCTION
Pointer Carrying Actuating Arm 0.5% 1% 1% 1.5% 1.5% 2%
Pointer Carrying one Contact 20% Beyond Contact Point 1% - -1.5% - 2% -
Contact Differential Between Make and Break - -1% - -1.5% - 2%
NOTE: These tolerances are to be added to the standard tolerance of the gauge or thermometer.
Above 30 psi 30 psi and below
Indication Contact Indication Contact Indication Contact
THERMOMETER
INSTALLATION
1. Remove instrument ring and replace window with electric contacts. Make sure gasket is reinstalled as it was used with the window. Gasket is not reused with 6˝ DURATEMP
®
Thermometer type 600-04 and 600-03.
2. The forked actuating arm is designed to fit freely over the standard DURAGAUGE cial pointers and all DURATEMP
®
Pressure Gauge pointer, but spe-
®
Thermometer pointers
need to be modified as shown in order to fit in the fork.
0.500˝
0.150
WIRING
Wire contact according to its corresponding schematic as shown. Contact conditions are shown at lowest pointer posi­tion. Connect the wires to the corresponding colored wire from the cable provided with the contact, and then plug the cable into the contact. For single low or high contact operation, follow the (XED) schematic and tape off the unused wire.
®
ADJUSTMENT
Take the adjusting key provided and place over the square shaft in the center of the hood, push down, rotate the adjusting arm and then move the red set arms to the desired location on the dial.
DEFINITIONS
XED High and Low Arrangement –
the low contact is closed and the high contact is open when the pointer is at its low­est dial reading.
XEE Double High Arrangement –
both contacts are open when the pointer is at its lowest dial reading. Due to the high hairspring torque of these contacts, the gauge pointer may be slightly above its lowest dial reading.
XEF Double Low Arrangement –
both contacts are closed when the pointer is at its low-
3. Disconnect power before readjusting magnets. The contacts
est dial reading. are equipped with adjustable magnets to eliminate contact chatter caused by vibration. The magnets as received are set to have no effect on the contacts. For applications involv­ing vibration, the magnet screw should be turned in until the magnet’s effect eliminates the vibration. Secure the magnets with Loctite or other suitable material. The force of the mag­nets could add up to 3% to 6% accuracy error to the values in the table.
4. Place the contact unit on the gauge so that the forked actu-
XEG “Off” at High and Low and
“On” In-between Arrangement – the contacts are closed in the center por­tion of the dial and open at
the extremes of the range. ating arm fits over the indicating end of pointer. If the fork hits the dial, clip the tip off or bend the fork out so that it no longer interferes with any portion of the dial. Gauge pointer may be bent up to fit into the forked actuating arm.
5. Replace window retaining ring.
© Ashcroft Inc., 250 East Main Street, Stratford, CT 06614-5145, Tel: 203-378-8281, Fax: 203-385-0499, email: info@ashcroft.com, www.ashcroft.com All sales subject to standard terms and conditions of sale. I&M008-10165 (250-2950) 02/09
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