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AM-5150

 

 

ENMET Corporation

 

 
 

2.0 Components of the 

AM-5150

 

2.1 AM-5150 elements 

See Figure 1 for location of elements: 

Feature 

Description 

Enclosure 

A polycarbonate box, approximately 7 x 5 x 3, with a detachable front cover. 
4 holes for mounting the enclosure to a vertical surface.  Located at the corners of the bottom 
of the enclosure, directly beneath the 4 front cover retaining screws.  See Figure 3 

Front Cover 

Detachable front cover of 

AM-5150

 with Display Panel.  See Section 2.2 and Figure 1 

There are 4 Screws that hold the front cover in place. 

2.2 AM-5150 Operational Features 

The Display Panel is attached by a cable and is released by unscrewing the 4 screws located in the corners.  After releasing the 
panel, it is swung upward, exposing the interior of the enclosure.  See Figure 1 for location of features. 

Feature 

Description 

Display 

A single line, 8 character LCD with backlight.  Indicates the level of gas detected by sensor. 
The numerical value of gas concentration and other information is displayed. 

Audio Alarm(Horn) 

Audio alarm (105 dB at 30cm/12in).  The audio alarm is activated when the unit is in alarm. 

Visual: 
Indicators and Alarms 

LED indicators: 

Power / Fault Indicator LED, Green / Red 
Alarm (3) Indicator LED, Red 

Membrane Switches 

2 Pushbutton Switches on front panel

 control the instrument maintenance functions.  

The pushbutton switch locations are indicated by:

 

M

ENU

 

: Advances the instrument display through operation information and maintenance 

menus 

S

ELECT

: Disables audio alarm temporally and  

Selects the maintenance menu operations such as, Zero, Span, Exit menu or sets 
proper calibration values for Zero or Span 

See Section 4.0 and 5.0 for operational and maintenance flow charts. 

Three alarm points are preprogrammed into the 

AM-5150

.  At each alarm point, an LED on the front panel is activated.  There 

are 4, 10 Amp relay contacts at each alarm point, plus a fault relay.  See Section 3.2 for wiring information. 

 

 

 

 

Figure 1: External AM-5150 Features 

Audio Alarm 

Power Wiring 

Strain Relief 

Visual Indicators: 
Alarm1, Alarm2, Alarm3 

Pushbutton/Membrane 
Switches 

Visual Indicator 

Power/Fault 

Front Cover 
Retaining Screws  
4 places
 

Sensor/Remote Sensor 
Wiring Access 

Menu

Select

Summary of Contents for AM-5150

Page 1: ...ENMET Corporation PO Box 979 Ann Arbor MI 48106 0979 www enmet com Manual part number 80003 550 MCN 453 07 19 11 AM 5150 Ambient Air Monitor Manual...

Page 2: ...15 5 3 SENSOR REPLACEMENT 16 5 3 1 Sensor Replacement Calibration 17 6 0 ACCESSORY AND REPLACEMENT PARTS 18 7 0 TECHNICAL DATA AND SPECIFICATIONS 18 8 0 WARRANTY 19 List of Tables TABLE 1 RELAY FAILSA...

Page 3: ...T it legally became your company s property If your shipment arrives damaged Keep the items packing material and carton As Is Within 5 days of receipt notify the carrier s local office and request imm...

Page 4: ...ormation is displayed Audio Alarm Horn Audio alarm 105 dB at 30cm 12in The audio alarm is activated when the unit is in alarm Visual Indicators and Alarms LED indicators Power Fault Indicator LED Gree...

Page 5: ...ircuit Board For the contacts for each of three alarm relays and for the contacts of a fault relay See Section 3 3 Terminal J12 For VDC back up power in and the 4 20 mA output See Section 3 1 2 Sensor...

Page 6: ...f the installation to appropriate codes is not ENMET s responsibility The AM 5150 should be powered through circuit breakers provided for this purpose 3 1 2 Power Supply The input power can vary from...

Page 7: ...low Heavier than Air Gas Sensor Location Bottled LP liquefied petroleum Interior wall 18 24 from floor DO NOT locate directly above or beside gas appliances ovens heaters Avoid locating anywhere near...

Page 8: ...Heater Ground Brown 4 Signal Ground Yellow Wiring for 3 wire Terminal Sensors Position Function Wire Color 1 Heater Orange 2 Signal Blue 3 Heater Ground Brown Wire Nut Signal Ground Yellow NOTE The ye...

Page 9: ...ly Open J14 K1 Relay 1 NC Normally Closed J14 K1 Relay 1 COM Common Alarm 2 J15 K2 Relay 2 NO Normally Open J15 K2 Relay 2 NC Normally Closed J15 K2 Relay 2 COM Common Alarm 3 J16 K3 Relay 3 NO Normal...

Page 10: ...r is a flashing C The instrument has failed Calibration The last good calibration values are retained but the sensor may not be responsive to gas A new Calibration should be performed As Soon As Possi...

Page 11: ...l Scale Press MENU button Display returns to gas measurent Operational Display Flow Chart 4 2 1 Alarm Conditions AM 5150 There are three alarm set points available These alarm points are normally set...

Page 12: ...ay output TABLE 2 AM 5150 MAINTENANCE MENUS SEQUENCE Example of Display Function Normal Display Mode Measurement of CO Press and hold the MENU button for 2 4 seconds to enter the Maintenance Menu The...

Page 13: ...0 To change Alarm set points Press Menu button until Alarm to be changed is displayed Press Select button to display the set point The MENU button changes digit indicated by underscore cursor The SELE...

Page 14: ...5150 instrument before initial calibration overnight is preferred The AM 5150 has been pre calibrated at the factory and initial field calibration should result in only fine tuning to circuit as well...

Page 15: ...ll be made Cal OK appears on the display and in 1 2 seconds display will change to Span If you wish to Span the sensor press the SELECT button you are now ready to apply gas Proceed to gas span step 2...

Page 16: ...To exit cal press MENU button until Exit appears and press SELECT button If the sensor is outside of acceptable parameters Bad Span is displayed If the sensor did not respond an incompatible span gas...

Page 17: ...span range Enter the maintenance menu as shown in Figure 7 AM 5150 Maintenance Menu flow chart 1 Press the MENU button until to display Span is displayed 2 Press the SELECT button to initiate the mA S...

Page 18: ...s on side of sensor see Figure 9 Example 813 4 the first 3 digits are sensor ID the 4 digit indicates a 4 wire sensor 2 Disconnect the instrument for power 3 Disconnect the orange brown blue and yello...

Page 19: ...lt in only fine tuning to circuit as well as a way to check that installation is successful It is not necessary to open the enclosure to make adjustment The calibration functions are operated with pus...

Page 20: ...n calibration gases must be in a background of air do not use gases with an inert gas background such as nitrogen or argon 7 0 Technical Data and Specifications Electrical Power 15 Amp fused branch ci...

Page 21: ...product The purchaser indemnifies and saves harmless the company with respect to any loss or damages that may arise through the use by the purchaser or others of this equipment This warranty is expre...

Page 22: ...processing delays ENMET charges a one hour minimum billing for all approved repairs with additional time billed to the closest tenth of an hour All instruments sent to ENMET are subject to a minimum...

Page 23: ...nt Terms K COD Check one K VISA MasterCard______________________ ________ ________ Card number Expiration Card Code K American Express______________________ ________ ________ Card number Expiration Ca...

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