ASHCROFT Type 2265 Electrical Contacts Instruction Manual
- June 3, 2024
- ASHCROFT
Table of Contents
Installation and Maintenance Instructions for
ASHCROFT® Type 2265 Electrical Contacts
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
| FUNCTION | DURAGAUGE3 PRESSURE GAUGE | DURATEMP’ THERMOMETER |
|---|---|---|
| Above 30 psi | 30 psi and below | |
| Indication | Contact | Indication |
| Pointer Carrying Actuating Arm | 0.5% | 1% |
| Pointer Carrying one Contact 20% Beyond Contact Point | 1% | – |
| Contact Differential Between Make and Break | – | -1% |
NOTE: These tolerances are to be added to the standard tolerance of the gauge or thermometer.
INSTALLATION
-
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.
-
The forked actuating arm is designed to fit freely over the standard DURAGAUGE® Pressure Gauge pointer, but special pointers and all DURATEMP® Thermometer pointers need to be modified as shown in order to fit in the fork.
-
Disconnect power before readjusting magnets. The contacts 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. -
Place the contact unit on the gauge so that the forked actuating 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.
-
Replace window retaining ring.
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 lowest dial reading. 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.
© Ashcroft Inc., 250 East Main Street, Stratford, CT 06614-5145,
Tel: 203-378-8281,
Fax: 203-385-0499,
email: [email protected]
www.ashcroft.com
All sales subject to standard terms and conditions of sale.
I&M008-10165 (250-2950) 02/09