New Cosmos Electric KS-7D, Instruction Manual

Page: 18 / 40

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7-4. User Mode
7-4-1. User Mode Operation
▪
To enter the User mode, press the maintenance button
while the unit is on. After one beep,
“1” and its
abbreviated mode name
“MT” will be alternately
displayed.
▪
To select the mode options, use the
▲
and
▼
buttons.
▪
To confirm your selection, press the maintenance button. To return to the previous step, press the
RESET button.
▪
To execute the selected mode, press and hold the maintenance button for 3 seconds.
▪
To return to the normal operation mode, press and hold the RESET button for 5 seconds.
Mode Mode name Abbreviated mode name
1 Switching maintenance mode on/off MT
2 Zero adjustment 0 ppm
3 Span adjustment *** ppm
4 Alarm test AL T
5 Alarm history AL H
6 Clock setting DATE
< 1
st
stage alarm >
▪
Orange AL1 alarm light flashes and the status indicator sequentially-flashes orange.
▪
Audio alarm beep: Fast, high and low beep tones.
▪
ZA1 alarm relay contact is closed.
< 2
nd
stage alarm >
▪
Red AL2 and A1 alarm lights flash and the status indicator sequentially-flashes red.
▪
Audio alarm beep pattern: Very fast high and low beep tones.
▪
ZA2 alarm relay contact closes and ZA1 alarm remains closed.
▪
▪
During the User mode, gas detection, alarm operation, analog output, and
contact output activation are active as during normal operation mode.
However, audio alarm mute and alarm clearance are not active and cannot be
used.
▪
Return to normal operation mode after using the User mode.
NOTE
Use a rounded pin (e.g. precision screwdriver) for pressing the maintenance
button.
NOTE