Scott QuadScan II 7400, Руководство по эксплуатации и техническому обслуживанию, Страница: 32 / 121

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Current Loop Input-A channel is inhibited when the current loop input is equal to the programmed inhibit level
(factory default is 3.6mA). The channel inhibit is immediately removed when the current loop input is outside the
tolerance of ±0.25mA.
Sensor Damping Constant
Provides a damping time constant which allows the program selection from 0 to 10 seconds. Damping is the amount
of time it will take the unit to reach 63% of its final value when a step change occurs to a known concentration of gas.
The time to reach 95% of final value may be estimated by multiplying this setting by 3. Note: the lower the damping
time constant, the more unstable the reading may be.
Zero DB
Provides a dead band programmable from 0 to 5 % of full scale for a specific channel. The percentage of full scale
selected will not allow the “0” display (and 4mA output) to change until the selected percentage has been exceeded.