1. Pass Code Input; Span Gas Information - Honeywell X4 Series Operating Instructions And Maintenance Manual

Flow Regulator
Pressure Gauge
Gas Cylinder
Carry out the ZERO calibration procedure as described in Section 4- Zero Calibration
(Span Calibration for Oxygen).
• Only if the ZERO calibration is successful can a SPAN calibration be
performed.
• At the end of the ZERO calibration procedure, the ON/OFF button must be
pressed and held continuously for 5 seconds in order to proceed to SPAN
calibration while the Test Pass icon
is activated proceed to Section 4--1 Pass Code Input, otherwise proceed to
Section 4-- Span Gas Information.
• If no actions are performed at the end of the zero calibration the detector will
return to measuring mode.

4-3-1. Pass Code Input

If the Pass Code Protection feature has been activated, the detector prompts the
user to enter the pass code.
Press the UP or DOWN buttons to scroll to the current pass code. For fast scrolling, press
and hold the UP or DOWN buttons. When the current pass code is displayed, press
the ON/OFF button to enter the pass code.
notE
If the user fails to input the correct pass code 3 times consecutively, the
detector will return to measuring mode.
notE
For lost pass code, contact Honeywell Analytics or their agent.

4-3-2. Span Gas Information

The SPAN gas information will be displayed.
Only the gas label and SPAN gas concentration of the flammable and/or toxic
sensor(s) that passed the ZERO calibration will be shown on the LCD display.
6
ON/OFF Valve
Gas Tube
Flow Adaptor
is still blinking. If pass code protection
To ventilated area
X4 Series