Detcon PI-700 0-500ppb - Manual (Page 14)

Model PI-700 0-500ppb
PI-700 0-500ppb Instruction Manual Rev. 0.0 Page 10 of 53
3. Operation
3.1 Programming Magnet Operating Instructions
The Operator Interface of the Model 700 Series gas sensors is accomplished via two internal magnetic
switches located to either side of the LED display (see Figure 10). The two switches, labeled “PGM1” and
“PGM2”, allow for complete calibration and configuration, thereby eliminating the need for area de-
classification or the use of hot permits.
Figure 9 Magnetic Programming Tool
The magnetic programming tool (Figure 9) is used to operate the magnetic switches. Switch action is defined
as momentary contact, 3-second hold, and 10-second hold. (Hold times are defined as the time from the point
when the arrow prompt “V“ appears.) For momentary contact use, the programming magnet is briefly held
over a switch location. For 3-second hold, the programming magnet is held in place over the switch location
for three seconds. For 10-second hold, the programming magnet is held in place over the switch location for
10 seconds. The 3 and 10 second holds are generally used to enter calibration/program menus and save new
data. The momentary contact is generally used to move between menu items and to modify set-point values.
Arrows (“V” and “S”) are used on the LED display to indicate when the magnetic switches are activated. The
location of “PGM1” and “PGM2” are shown in Figure 10.
Program Switch #1
LED Display
Program Switch #2
PGM2
SPAN
PGM1
ZERO
MODEL
PI-700
detcon inc.
VOC
Figure 10 Magnetic Programming Switches
NOTE: While in the Program Mode, if there is no magnetic switch interaction after 4
consecutive menu scrolls, the sensor will automatically revert to normal operating condition.
While changing values inside menu items, if there is no magnet activity after 3-4 seconds
the sensor will revert to the menu scroll.
(Exception to this is with “Signal Output Check” mode.)