Teledyne 7500 Series Operating Instructions Manual page 55

Teledyne Analytical Instruments
(2) Auto calibration
(3) External hold
(4) Screen display during holding
The "Holding" message blinks on the measuring screen.
Since the screen displays the process of calibration is displayed during the manual calibration, "Holding"
is not displayed even if the screen is held, but the screen is displayed with the hold extending time.
(5) If calibration is cancelled after the calibration gas is supplied regardless of during manual calibration
or auto calibration, an output hold of the holding extending time will be performed.
Average value reset
This mode is used to clear O2 correction average value and O2 average value, and restarts averaging. All
average values are reset at a time. The indication value and output value is 0 ppm, vol% or so at the time
of the reset input.
So long as short-circuited, resetting lasts.
At the edge of changing from short circuit to opening, the
average action restarts.
Response time
The response time of the electrical system can be changed.
Setting is available by components.
Note: It does not provide exact seconds for the setting time,
but it gives a guide of the setting time. The setting value can be
modified as requested by the customer.
55 Model 7500 Instruction Manual