Optional Reset Push-Button; General; Reset Button Selection - MSA Ultima X Series Installation & Maintenance Instructions Manual

2) Optional RESET Push-button

• If you are going to specify a switch to use with the Ultima X series,
it should have, as a minimum, an equivalent (or better) approvals
classification. The MSA provided pushbutton (P/N 10046923) is
explosion-proof for Class I, Groups B, C, and D only. When relied
upon for an explosion-proof capacity, do not install on equipment
mounted or intended to be mounted in any other hazardous
location.
This pushbutton has been approved for use in Group A with the
Ultima X Series when the protection technique is Nonincendive
and the hazardous location is Division 2. Check product labels for
protection technique.
When the pushbutton is used in conjunction with the Ultima
XE Gas Monitor, the highest classification rating for the sys-
tem is reduced to Class I, Div. 1, Groups B, C, & D. See MSA
P/N 10048833 for installation instructions. Misuse can result
in ignition of hazardous gases.

General

A RESET button is an optional feature to allow latching relays to be
reset at the sensor location.
• This may silence any alarm horns or turn OFF any equipment
connected to the relays.
• Latching relays can be configured on the Ultima X Series Gas
Monitor via the Ultima Controller.
• In a latching configuration: when the RESET button is pushed
and any alarm is latched and not in its active alarm state, the
alarm will reset.
NOTE: An IR command can mimic the RESET button per
Controller and Calibrator manual (P/N 813379).
• In a non-latching configuration: the RESET button has no affect
on the alarms.

RESET Button Selection

The RESET push-button can be acquired locally and wired to the Ultima
X Series Gas Monitor during unit installation.
" WARNING
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