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LEVEL I is an entry level controller system
designed for the small fueling facility requiring
only basic start and stop of the compressor
and monitoring basic shutdown functions. It
monitors and controls the electric motor
driven compressor and the system loading and
unloading devices. 
The LEVEL I controller is an extremely
powerful system, yet user friendly. Its design
incorporates the high technology Murphy 
SELECTRONIC

®

Micro-Controller™ series.

Features:

Automatic start and stop control

Operating parameters field adjustable 
without reprogramming
Includes hourmeter
Extremely user friendly
Operates load/unload devices
Compatible with stand alone
priority/sequential controls (see below)
NEMA 4, 7, and 9 enclosure

Standard Control Systems for 

CNG Fueling Stations

LEVEL I

2

Designed for the small fueling facility...monitoring 
and controlling electric motor driven compressor.

The Murphy SELECTRONIC

®

Priority/Sequential Controller
will monitor the 

Cascade

or

other high pressure storage
banks and control the electric
sequencing valves. The 

Priority

Valves

will sequence at operator

selectable levels to fill the

storage on fast fill packages. It
will also monitor the vehicle
dispenser flow rate and
pressure, and will control the

Sequential Valves

and 

Shut-off

Valves

to maximize filling the

vehicle in the minimum amount
of time.

Additional Controls 

Stand Alone Priority and
Sequential Controller

Содержание CNG-92200H

Страница 1: ...F W M u r p h y Control Systems for Alternative Fuel Fueling Stations CNG 92200H Revised 08 00 00 02 0149 ...

Страница 2: ...pability to be expanded or engineered to meet your needs We understand your requirements we listen to your concerns and most importantly we respond Murphy controls are known and accepted world wide and they are backed by our limited 2 year warranty All Murphy controls are designed to live in the harsh environment of motors engines and compressors They re tough for tough applications These systems ...

Страница 3: ...ates load unload devices Compatible with stand alone priority sequential controls see below NEMA 4 7 and 9 enclosure Standard Control Systems for CNG Fueling Stations LEVEL I 2 Designed for the small fueling facility monitoring and controlling electric motor driven compressor The Murphy SELECTRONIC Priority Sequential Controller will monitor the Cascade or other high pressure storage banks and con...

Страница 4: ...a NEMA 3 weatherproof enclosure Features Automatic start stop control for electric motor or engine driver s Available for NEC Class I Division 1 or Division 2 Group D Reliable microprocessor based control circuitry Operates load unload devices SWICHGAGE instruments included in control panel Includes hourmeter Accepts discrete analog inputs Tachometer on engine drive units Operating parameters fiel...

Страница 5: ...ivision 2 Group D and non hazardous locations Automatic start stop control for electric motors or engine drivers Monitor 40 optically isolated discrete inputs Provides 32 open collector outputs Operating parameters adjustable via three button operator key pad no programming needed Built in security to prevent unauthorized system parameter manipulation Operating parameters stored in EEPROM memory m...

Страница 6: ...ing NEMA 3 weatherproof enclosure Murphy strives to offer the most effective and timely support in the industry Whether your needs are panel service re programming or complete system upgrades using dependable and proven Murphy equipment our qualified staff is eager to assist Priority Sequential Valve Panels 5 Valve Panel for 2 fast fill drops 1 slow fill header and 3 bank cascade storage Valve Pan...

Страница 7: ...lve Control Panel LEVEL III Control System Storage Tanks DOT Cascade Dispenser Driver Slow Fill Header These items are not included in a LEVEL III control system Order seperately For this standard configuration the dispenser must provide a dry contact closure to initiate a fill and a 4 20 mA flow rate signal for each drop Optional Bypass Valves for fast fill H M L PT PT PT PT PT PT 6 ...

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