Instructions:
1.
”
Alarm
” - Gas warning RED: Light diode (LED) flashes twice per
second, together with “bib- bib” sound warning. If the gas
concentration increases, the sound warning changes from “bib-
bib” to constant warning sound.
2.
”
Fault
” – YELLOW: The light diode (LED) flashes once per second as
long as ET-999 is malfunctioning. Switch off and restart ET-999.
3.
”
Fault
” – YELLOW: The light diode (LED) lights up when ET-999 is
switched on and continues for the first 180 seconds while ET-999
starts up.
4.
”
Battery
” – Battery warning: shows the main power for ET-999 has
been cut. The light diode (LED) flashes and the alarm sounds
once every 10 sec.
5.
”Power”
– GREEN: The light diode (LED) lights up constantly when
ET-999 is connected to 12 volt DC main power.
Installation and use:
1)
Install ET-999 as close as possible to sleeping accommodations or
kitchen area.
2)
Insert a 9 volt battery into the battery box (place the battery as
indicated).
3)
Connect 12 volt DC from a 12 volt DC power source: car battery,
12V accumulator, or other 12V DC converter.
4)
Switch on the side of the alarm: UP = ON, down = OFF
5)
When ET-999 is connected to 12volt DC and is switched on, the
”Power” light diode lights up and the alarm is in “warming up”
mode for 180 seconds. During the first 180 seconds the FAULT
diode is on (yellow LED). When the FAULT light diode is out, ET-999
is ready and active.
6)
If the main power (12V) is cut off, the battery light diode lights up
and the voltage guard alarm sounds ‘bib’ every 10 sec.
7)
By normal use the battery light diode flashes once per minute
showing battery status. If the voltage of the 9 volt battery drops to
7,0 volt, the battery guard alarm sounds (change battery).
8)
Always install ET-999/ET-68 at the floor (max. 50 cm above the
floor) as anaesthetics as well as combustible gasses are heavier
than air.
9)
Do not place the gas alarm where is can be exposed to cooking
grease or smoke.
10)
12volt DC connection, - (minus) black cable, + (plus) black/white
cable.
11)
Do not use ET-999/ET-68 for measuring corrosive gasses or in areas
with corrosive gasses.
12)
Do not test the gas alarm by high gas concentration.
13)
Do not place the alarm in areas with high concentration of petrol,
pesticides, or paint vapours for en extended period of time.
14)
Do not expose the gas alarm to caustic or corrosive gasses.
15)
Do not open ET-999
16)
Do not forget to keep ET-999 clean and wipe the surface regularly to
avoid dust and grease.
Test
Simple test:
ET-999 can be tested with lighter gas (Butane gas).
Hold a gas lighter in front of ET-999 or ET-68 and turn on the gas. If ET-999
sounds alarm, the alarm is OK.
You should do this test at least once a year.
Technical data:
Voltage:
12volt DC -15/+25% (10,5V -15,0V)
Backup battery: 9 volt, Alkaline type 6LR61
Alarm area:
Anaesthetic (narcotic) gasses: 60 ppm
Butane, Propane, LPG gas: 10% LEL (2000ppm)
CO (Carbon Monoxide): 150ppm ±50ppm (only if ET-69 is connected)
Warming up time: 180 seconds
Response time: < 50 seconds
Resumption time: < 30 seconds
Power consumption:
ET-999: typ. 95mA @ 12VDC
ET-999 with ET-68: typ. 170mA @ 12VDC
ET-999 with ET-69: typ. 150/260mA @12VDC
ET-999 with ET-68 and ET-69: 210/330mA @ 12VDC
Low battery alarm (9 Volt battery): 7,0 Volt
Temperature: -10°C ~ +50°C
Humidity: 95 % RH
Pressure: 1 Atm +10 %
Size: 16,9 x 8,9 x 3,8 cm