ENMET EX-6100 Series - Manual (Page 17)

EX-6100 ENMET Corporation
14
7 Fuses
A 1Amp anti-surge fuse, housed within a surface mounted holder, is located within the EX-6100 to prevent overloading of the electronic
circuitry in the event of an internal fault.
In the event of the internal fuse blowing, access can be gained using the following procedure:
1. Switch OFF the supply to the EX-6100 .
2. Release the grub screw located near the lip of the enclosure cover.
N OTE : It is not necessary to remove the grub screw to release the enclosure front cover.
3. Remove the enclosure front cover by rotating it several times in an counter-clockwise direction.
4. Unplug the display board from within the enclosure.
5. Remove the 3 screws located around the edge of the next board.
6. Unplug this board.
7. The surface mounted fuse holder can now be located on the board below. Replace only with a fuse of the same type and rating:-
1Amp Anti-surge ‘Nano fuse’
Assembly is the reverse of the above procedure.
8 Specifications
Materials :
Instrument Body – Aluminium Pressure Die Casting
Sensor Insert – Stainless Steel Grade 316
Magnetic Pen – Stainless Steel Grade 316
Weather guard – Stainless Steel Grade 304 & Nylon 66
Cable entries : 2 x 20mm
Weights :
EX-6100 (excluding weather guard) – 1.5Kg
Magnetic Pen – 60 grams
Weather guard – 200 grams
Gas type : Flammable gases including Methane and Hydrogen
Input voltage : 8 to 24 volts dc
Input power : 5 Watts maximum
Internal fuse : 1 Amp antisurge 'Nanofuse'
Analogue
output
:
4 to 20mA (10 bit resolution)
Relays
Relay 1 – Alarm 1
Relay 2 – Alarm 2
Relay 3 – Fault
Contact Rating 300Vac, 3 Amps (Non-inductive load)
RS232 output : Communications with PC at 19200 baud
Sensor type : Pellistor, 2.5v dc, 170mA
Measurement
range
: 0 – 100% LEL
Response time : < 10 seconds
Measurement
resolution
: 1% LEL
IP rating : Enclosure IP66, Sensor IP65
Display : 4 Digit, 7 segment liquid crystal
Keypad : 4-Button magnetically operated
Software : Software configuration provided via LCD display and multifunction keypad
Operating
temperature
: - 20 to +60 O C
Humidity range : 0 to 95% RH non-condensing
Operating
pressure
: Atmospheric + or - 10%
Performance
standards
: EN 60079-29-1:2007