Detcon TP-624C - Manual (Page 18)

number, heater level, range of detection, and estimated remaining sensor life. The programming menu also allows
the changing of alarm levels (see section 3.9), the programming of the calibration gas level setting (see section
3.7.2), the sensor heater level (see section 3.6.2), the range of detection (see section 3.6.4), and the linearize sensor
(see section 3.7.5).
The following procedure is used to view the programming status of the sensor:
a) First, enter the programming menu by holding the programming magnet stationary over “PGM 2” for 15 sec-
onds until the display reads “VIEW PROG STATUS” , then withdraw the magnet. At this point you can
scroll through the programming menu by momentarily waving the programming magnet over “PGM 1” or
“PGM 2”. The menu options are: View Program Status, Set Alarm 1 Level, Set Alarm 2 Level, Set Cal Level, Set
Heater Level, Set Range, and Linearize Sensor.
b) Next, scroll to the “VIEW PROG STATUS” listing and then hold the programming magnet over “PGM 1”
for 3 seconds. The menu will then automatically scroll, at f ive second intervals, through the following informa-
tion before returning back to the “VIEW PROG STATUS” listing.
1 - The gas type, range of detection and software version number. The menu item appears as: “H2S 0-100 V6.1”
2 - The alarm set point level of alarm 1. The menu item appears as: “ALM1 SET @ xxPPM”
3 - The alarm f iring direction of alarm 1. The menu item appears as: “ALM1 ASCENDING”
4 - The alarm relay latch mode of alarm 1. The menu item appears as: “ALM1 NONLATCHING”
5 - The alarm relay energize state of alarm 1. The menu item appears as: “ALM1 DE-ENERGIZED”
6 - The alarm set point level of alarm 2. The menu item appears as: “ALM2 SET @ xxPPM”
7 - The alarm f iring direction of alarm 2. The menu item appears as: “ALM2 ASCENDING”
8 - The alarm relay latch mode of alarm 2. The menu item appears as: “ALM2 LATCHING”
9 - The alarm relay energize state of alarm 2. The menu item appears as: “ALM2 DE-ENERGIZED”
10 - The alarm relay latch mode of the fault alarm. The menu item appears as: “FLT NONLATCHING”
11 - The alarm relay energize state of the fault alarm. The menu item appears as: “FLT ENERGIZED”
12 - Calibration gas level setting. The menu item appears as: “CalLevel @ xxPPM”
13 - The sensor heater voltage setting. The menu item appears as: “HEATER @ #.##VDC”
14 - The range of detection setting. The menu item appears as: “RANGE @ 0-###PPM”
15 - Identif ication of the RS-485 ID number setting. The menu item appears as: “485 ID SET @ 1”
16 - The estimated remaining sensor life. The menu item appears as: “SENSOR LIFE 100%”
17 - The raw resistance from the sensor. The menu item appears as: “RESISTANCE XXXXX”
c) Exit back to normal operations by holding the programming magnet over “PGM 2” for 3 seconds, or automati-
cally return to normal operation in 30 seconds.
3.9 P
ROGRAMMING
A
LARMS
3.9.1 Alarm Levels
Both alarm 1 and alarm 2 levels are factory set prior to shipment. For the ranges 0-50 ppm and 0-100 ppm, alarm 1
is set at 10ppm; alarm 2 at 15ppm. For the range 0-20 ppm, alarm 1 is set at 5ppm; alarm 2 at 10ppm. Both alarms
can be set in 1 ppm increments; the range 0-100 ppm from 10 to 90 ppm, the range 0-50 ppm from 5 to 45 ppm,
and the range 0-20 ppm from 2 to 18 ppm. The following procedure is used to change alarm set points:
a) First, enter the programming menu by holding the programming magnet stationary over “PGM 2” for 15 sec-
onds until the display reads “VIEW PROG STATUS” , then withdraw the magnet. At this point you can
scroll through the programming menu by momentarily waving the programming magnet over “PGM 1” or
“PGM 2”. The menu options are: View Program Status, Set Alarm 1 Level, Set Alarm 2 Level, and Set Cal Level.
b) ALARM 1 LEVEL From the programming menu scroll to the alarm 1 level listing. The menu item appears as:
“SET ALARM 1 LEVEL”. Enter the menu by holding the programming magnet stationary over “PGM 1”
for 3 seconds until the display reads “SET ALM1 @ ##PPM” , then withdraw the magnet. Use the program-
ming magnet to make an adjustment to “PGM 1” to increase or “PGM 2” to decrease the display reading until
the reading is equal to the desired alarm set point. Exit to the programming menu by holding the programming
magnet over “PGM1” for 3 seconds, or automatically return to the programming menu in 30 seconds.
Detcon Model TP-624C Hydrogen Sulfide Sensor PG.18