Cosmos PS-7 - Page 27

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DC-ITD-PS7MAN01.A www.dodtec.com
JAN 2019 815-788-5200
PS-7 Manual
Zeroing
Toxic Gas Sensor Unit: CDS-7
Combustible Gas Sensor Unit: CHS-7
21vol% Adjustment
Oxygen Sensor Unit: COS-7
1. Set to maintenance mode (MNT1 or MNT2)
Left: Maintenance 1 (MNT1)
Center: Normal Mode
Right: Maintenance 2 (MNT2)
*For details regarding maintenance modes, refer to
7-5 Maintenance Mode Settings and Operating
1. Set to maintenance mode (MNT1 or MNT2)
Left: Maintenance 1 (MNT1)
Center: Normal Mode
Right: Maintenance 2 (MNT2)
*For details regarding maintenance modes, refer to
7-5 Maintenance Mode Settings and Operating
2. Hold down the ZERO Key for over a second.
It is complete when the POWER lamp (Green)
blinks once.
2. Hold down the SPAN Key for over a second.
It is complete when the POWER lamp (Green)
blinks once
3. Set back to normal mode (Center)
3. Set back to normal mode (Center)
Be sure to do a readjustment after the appropriate
time has passed to increase precision.
Poisonous gas sensor unit: After 24 Hours
Flammable gas sensor unit: After 7 Days
Be sure to do a readjustment after the appropriate
time has passed to increased precision.
Oxygen Sensor Unit: After 24 Hours