DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL
Note
:
The menu item
“FACTORY DEFAULT” usually displays 0.
When set to 1, instrument will automatically restart and display
“BOOT” . In addition, all parameters will be restored to factory
default setting, there is a need to re-set gas type, zero calibration and
gain calibration.
[M-05] -- Sensor replacement
For the combustible gas transmitter, you cannot replace the sensor with the device
energized and can only reset the counter of sensor service time (in days) through this
menu item.
(1)
Press “+” to select menu item M-05.
(2) Press
“ON” and the screen will display the menu for entering password.
(3) Enter the password (see Section 4.4).
(4) If you enter the correct password, you will enter the next submenu. Clear the
sensor service time (in days) and return to the concentration measurement screen.
(5) Press
“OFF” to return to the previous menu M-05.
45
Submenu
Parameter
Meaning
Default
Adjustable Range
Remarks
TEST GAS=
Calibration gas
concentration setting
50
5~99
CURRENT
OFFSET=
(4~20) mA
offset tuning
120
90 ~ 150
ALARM_L=
Low alarm
point setting
25
5 ~ (high alarm-1)
ALARM_H=
High alarm
point setting
50
(low alarm + 1)
~ (range -1)
ZERO TIME=
Zero calibration
countdown(second)
30
10 ~ 99
SPAN TIME=
Gain calibration
countdown(second)
30
10 ~ 900
IDLE TIME=
Countdown after gain
calibration (second)
15
10 ~ 99
4-20MA
OUTPUT
MODE
Current output
mode during
gain calibration
FLOT
4mA: The output
current is fixed at 4mA
during the calibration
FLOT: the output current
changes with displayed
concentration during
calibration
FACTORY
DEFAULT=
Restore factory
default setting
0
1: Restore factory
default setting
TEMP
SETTING=
Internal temperature
sensor calibration
NA
NA
Appear only external
temperature broken
or not presence
Summary of Contents for DF-8500 C
Page 3: ...DF 8500C 0 100 LEL 1 1 1 DF 8500 C SUPREMA Gasgard XL 9010 9020 8020 1 2 4...
Page 4: ...DF 8500C 0 100 LEL 1 3 10 V V 21 V V 5...
Page 5: ...DF 8500C 0 100 LEL 1 4 1 2 12 2 2 1 1 DF 8500 C 6...
Page 7: ...DF 8500C 0 100 LEL 3 3 1 3 1 1 mm 3 DF 8500 C 8...
Page 12: ...DF 8500C 0 100 LEL 4 4 1 4 0mA LED LED COMB 100 100 LEL 25 50 25 LEL 50 LEL 13...
Page 20: ...DF 8500C 0 100 LEL 4 3 1 1 4 2 2 M 01 4 2 2 M 02 OFF 4 4 4 0000 1 2 ON 3 4 21...