Description
Cet analyseur répond à la norme IGE SR25.
Attention cet analyseur est non-EX ou ATEX et donc doit donc être installé en dehors de toute zone Ex ou ATEX
Il a les prérequis suivants :
- 110V 6A – (IEC rear connector) wired to flex outlet from Distribution box.
- N2 carrier gas line: ¼” Nylon/PTFE/SS piping (1/4” Swagelok connector supplied) Set at 1Bar at cylinder regulator Technical Grade 99.999%.
- Biogas feed line - ¼” PTFE/SS piping (1/4” Swagelok connector supplied) Maximum 1Bar input pressure.
- Vent line - ¼” PTFE/SS piping (1/4” Swagelok connector supplied) Vented ~3m high, end of Line flame arrester to be fitted.
Débit de biogaz :
Il échantillonne environ 2L de biogaz pendant une fenêtre de 2O min toutes les heures, à un débit approximatif de 100ml/min.
Le gaz échantillon passe à travers l’instrument et est ensuite ventilé dans l’atmosphère.
Debit d’azote N2:
The instrument consumes approx. 4L of N2 every hour. Resulting in 0.1m3 of N2 per day. This is passed through the instrument then vented to atmosphere.
STS recommend using the largest N2 cylinder to avoid regular replacement.
Air Products: X47S: 80kg 200bar 8.9m3. Technical Grade.
Regulator: BOC 8500 or similar, 300Bar inlet , 0-4 bar outlet.
This should last approx. 90days, 3 months.
Pièges a eau requis : piege avec purge automatique avec lignes de purge automatique par flotter sur chaque échantillon avec alimentation 24 V fournie par l’instrument.
Mallette de transport PELI avec 8 connections externes :
- Biogas IN 1
- Biogas IN 2
- N2 IN
- Vent OUT
- Drain OUT
- Data comms Out
- 110V supply IN.
Alimentation biogaz : Regulated in the kiosk to 35mbar, normal inlet pressure to the regulators should not exceed 350mbar. If a higher pressure is present, the regulator will require re-specification.
Alimentation électrique requise : A 220 V earthed connection is required to the externally mounted switch.
Sécurité :
- the instrument uses an air purge system to ensure safe operation, this is achieved with 2 high capacity fans mounted in the instrument which force a constant stream of air through the case. The flow of air through the instrument ensures that even in a catastrophic joint failure that the LEL of CH4 would not be exceeded. The purge fans are monitored so that if they are inactive the instrument will be placed into “Safe Mode”
The instrument has an on-board methane sensor which will place the instrument into “Safe Mode” if it exceeds 10% of the LEL. An on-board temperature sensor will place the instrument in “Safe Mode” if the temperature in the cabinet exceeds 55C.
- Incoming bio-gas lines are controlled by Solenoid valves in the Pelicase which are in the Normally Closed position unless activated, the internal instrument also has a solenoid valve on the incoming biogas line which is Normally Closed, any power failure will therefore close these valves stopping gas flow. “Safe mode” shuts the incoming gas valves, turns off all heaters and runs the case fans to vent.
- The Case itself is force cross ventilated by 2 high capacity fans which draw and purge air through the case.
- The Siloxane Monitor & Kiosk is not EX or ATEX rated and as such should be sited outside of any zoned area.
