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EX-5155 

ENMET  

100 

To change mA Span set point:

 

Tap the 

M

ENU 

switch until mA Span is displayed 

Tap the 

S

ELECT 

switch to display the set point 

The 

M

ENU 

switch changes digit indicated by underscore cursor 

The 

S

ELECT 

switch locks underscored digit and moves to next digit 

mA Span 

S

ELECT 

M

ENU 

To 

return to Normal Gas Display: 

Tap 

M

ENU 

switch until EXIT is displayed 

Then tap 

S

ELECT 

 switch 

Figure 5: EX-5155-MOS Maintenance Menu Flow chart 

5.3 Heater Voltage Settings 

Heater Voltages are necessary for MOS sensors.  They are preset at the factory and should not require field adjustment.  Do not  

adjust these voltages unless specifically instructed to do so by 

ENMET

 Corporation Technical Support Staff.  

C

AUTION

:

 Improper adjustment of heater voltages can damage sensors voiding any warranties and also alter the operating  

characteristics of the sensor in such a way that the 

EX-5155-MOS may not respond to it’s target gas.

 

5.4 Sensor Replacement

 

C

AUTION

: Area must be declassified during sensor replacement.

 

Sensors should be replaced when they can no longer be calibrated.  Replacement sensor part numbers are listed in Section 6.0 

of this  

manual.  If you do not know the proper part number for your sensor, be sure to h

ave the EX-5155-MOS serial number available 

 

when contacting your Distributor or 

ENMET

 Corporation Technical Support. 

 

To replace a sensor, it is not necessary to open the transmitter housing. 

 

Remove the set screw from sensor housing base. 

 

Unscrew the sensor housing cover and remove spacer.  

Note the orientation of spacer

.  

Unplug the sensor form PC Board.  

Plug new sensor into PC Board and replace spacer.  

Replace spacer with grooved edge toward sensor housing cover

.  

Reassemble the sensor housing.  

After the new sensor has been installed, it is suggested to allow the sensor to stabilize for 24 hours.  

A Factory calibration must be performed.  

After entering the Maintenance menu, advance to the Zero menu.  Then while viewing the Zero menu, hold the magnet over the  

M

ENU

 switch for 2-4 seconds.  

After 2-4 seconds, an F will appear on the far right hand side of the display.  The F indicates that the instrument is in Factory mode.  

Perform the calibration Zero and Span procedures as outlined in Section 5.2.  Be sure that the F is present when selecting the Zero  

and Span functions.  

The Factory calibration sets a calibration window for future standard instrument calibrations.  

Only perform a factory calibration when installing a new sensor.  

Set Screw 

(0.050 inch, 1.27mm Hex Key) 

Sensor Housing Base

 

Spacer 

Note the orientation of spacer for replacement

 

Grooved edge of spacer toward Sensor Housing Cover

 

Sensor 

Sensor Housing Cover 

P C Board 

Figure 6: Sensor Replacement

 

Manual Release Date – 

November 26, 2018 

Manual Part No. – 80003-098 

P a g  e 

  | 16  

Содержание EX-5155-MOS

Страница 1: ...ENMET 680 Fairfield Court Ann Arbor MI 48108 734 761 1270 Fax 734 761 3220 www enmet com EX 5155 MOS Toxic Gas Sensor Transmitter Operation Manual ...

Страница 2: ...EX 5155 ENMET Manual Release Date November 26 2018 Manual Part No 80003 098 P a g e 1 ...

Страница 3: ...r Replacement 16 6 0 REPLACEMENT PART NUMBERS 17 List of Figures and Tables Figure 1 EX 5155 MOS Features 5 Figure 2 EX 5155 MOS Mounting Dimensions 6 Figure 3 Terminal Positions EX 5155 MOS Sensor Transmitter 8 Table 1 EX 5155 MOS maintenance Menus Sequence 11 Figure 4 Calibration Adapter EX 5155 MOS Sensor Transmitter 12 Table 3 Examples of Standard and Non Standard Calibration Gas 13 Table 2 Ca...

Страница 4: ...EX 5155 ENMET Manual Release Date November 26 2018 Manual Part No 80003 098 P a g e 3 ...

Страница 5: ...ction and after you have received written acknowledgment of the damage from the carrier contact ENMET Customer Service for return authorization and further instructions Have your Purchase Order and Sales Order numbers available ENMET either repairs or replaces damaged equipment and invoices the carrier to the extent of the liability coverage usually 100 00 Repair or replacement charges above that ...

Страница 6: ...ic switches control the instrument maintenance functions The switch locations are indicated by MENU and SELECT A magnetic field pulse is applied by momentarily putting the end of the magnet in proximity to the switch and then removing it Referred to as tap Since the magnetic field penetrates the window the enclosure cover is not removed in order to perform calibration Three alarm points are prepro...

Страница 7: ...ansmitters Also take into consideration environmental factors when deciding on S T location Avoid locations where the S T may be damaged by liquid immersion excessive heat or other know hazards Also take precautions to insure condensation insid of the conduit does not enter the S T 3 1 Mounting the EX 5155 MOS Enclosure Mount the enclosure using the two mounting holes provided see Figure 2 Pay par...

Страница 8: ...Do not damage the magnetic switches Remove the two overlay standoffs and remove the circuit board exposing the terminal strips on the bottom of the circuit boar d Do not disconnect the circuit board wiring Connect the wires from the controller power supply to the supplied J4 plug then attach to J4 terminal Connect the wires from the sensor to the supplied J8 plug then attach to the J8 terminal See...

Страница 9: ...closure Cutaway View Display Overlay Magnetic Switches 2 places Printed Circuit Board PCB Figure 3 Terminal Positions EX 5155 MOS Sensor Transmitter When wiring is complete reassemble the EX 5155 MOS Use caution when installing the overlay so as not to damage the magnetic switches Put the cover back on the S T Do Notapply power to the S T without the cover in place Manual Release Date November 26 ...

Страница 10: ...ng the instrument status See the table below Purging occurs automatically for instruments with sensors that require purging Purge wil l occur for 5 minutes on instrument start up followed by a 5 minute recovery period At the end of the recovery period the transmitter should be ready for operation If additional purge time is required refer to Section 4 1 3 for more information Example of Display ma...

Страница 11: ...t point Tap the magnet over the MENU button SELECT SELECT A1 A2 10 20 MENU MENU Display indicates Alarm 2 Set point Tap the magnet over the MENU button No Function for the SELECT button in this mode Display indicates Alarm 3 Set point Tap the magnet over the MENU button A3 50 SELECT SELECT MENU Display indicates mA Span range Full Scale mA 100 Tap the magnet over the MENU button MENU Display retur...

Страница 12: ...agnet over MENU switch for 2 5 seconds to enter the Maintenance Menu The Power Fault LED will flash Green Red to indicate the EX 5155 MOS is in Maintenance Mode To exit the maintenance Menu and return to the Normal Exit Display Mode If intended function Tap the magnet over SELECT switch Tap the magnet over the MENU switch to advance to the Zero procedure For adjusting Zero Zero If intended functio...

Страница 13: ...mitters Calibration equipment is available from ENMET Corporation to calibrate the EX 5155 MOS sensor transmitters A calibration adapter will have a fitting for the gas cylinder on one side and a cover to go over the sensor housing on the other Generally a cylinder of 20 9 Oxygen is used to provide a fresh air reference or Zero point for the calibration Another cy linder is used to provide the Spa...

Страница 14: ...ibrations use for examples only Consult ENMET for specifications and availability Ammonia 0 300 PPM 150 PPM 300 PPM 300 PPM 03019 000 300 PPM Ammonia See Addendum Ammonia Calibration 1200 PPM Freon 134 Freon 134A Freon 12 0 2000 PPM 0 2000 PPM 500 PPM 500 PPM 1000 PPM 1000 PPM 1500 PPM 1500 PPM 03032 000 03032 000 2 LEL Methane 300 PPM Carbon 1200 PPM Freon 12 Monoxide 2 LEL Methane 500 PPM Hydrog...

Страница 15: ...an change the Calibration Gas Level HOLD the magnet over the SELECT switch for 2 4 seconds The MENU switch changes digit indicated by underscore cursor 3 Attach the associated calibration gas cylinder to the regulator and calibration cover See to Figure 3 4 Open the valve to apply the calibration gas to the sensor 5 Watch for the signal level to stabilize Refer to Table 4for typical response times...

Страница 16: ...2 2 SELECT Cal OK Apply Calibration Gas until signal value becomes stable about 1 to 4 minutes See Figure 4 OR Same mV If cal is good display will indicate OK or Same OR If cal is not within preset range display will indicate Bad Sens Bad Sens NOTE Some software revisions require the SELECT switch be tapped to accept the signal To change Alarm set points Alarm1 Λ 10 SetTDsec 0 SELECT Tap Menu swit...

Страница 17: ...ng your Distributor or ENMET Corporation Technical Support To replace a sensor it is not necessary to open the transmitter housing Remove the set screw from sensor housing base Unscrew the sensor housing cover and remove spacer Note the orientation of spacer Unplug the sensor form PC Board Plug new sensor into PC Board and replace spacer Replace spacer with grooved edge toward sensor housing cover...

Страница 18: ...00 03016 000 03018 000 03019 000 ConsultENMET Distributor orENMET Corp for additional sensors Regulator Overlay Magnet Calibration Sampling Adapter 03700 008 06000 058 50030 001 03700 034 Calibration Gas Consult ENMET Distributor orENMET Corp Regulator Ammonia 03700 005 Manual Release Date November 26 2018 Manual Part No 80003 098 P a g e 17 ...

Страница 19: ... by ENMET for professional collection services or legal fees to collect on a customer invoice will be added to any future business conducted between ENMET and that customer 7 4 Warranty Information and Guidelines Equipment must be returned prepaid to the point of origin and ENMET will prepay the return transportation charges Transportation prepaid by ENMET will be by most economical means e g FedE...

Страница 20: ... percentage of total cost expended prior to cancellation 7 6 Returning an Instrument for Service Instructions Contact the ENMET Service Department for all service requests Phone 734 761 1270 Email repair enmet com Fill out the Service Request Form found at the end of this manual and return with your instrument for all needs Please send your instrument for service to the site in which the product w...

Страница 21: ...he ammonia is absorbed in the water with the remaining 200 ppm reaching the sensor Unscrew the bowl from the humidifier and place enough water into the bowl to reach the bottom edge of the tube DO NOT let the water cover the tube The tube should not penetrate the water Connect the calibration adaptor to the cylinder of ammonia Place the unit into calibration mode reference Section 5 0 and perform ...

Страница 22: ......

Страница 23: ...dress Contact Name Email Phone Fax PO Reference PAYMENT METHOD COD VISA MasterCard American Express Security Code Card Number Exp Date Name as it Appears on Card RETURN SHIPPING METHOD UPS Ground UPS 3 Day UPS Next Day UPS ND Air UPS 2 Day Air Select Air Saver UPS Account FedEx Ground FedEx Air FedEx Air FedEx Air 2 FedEx Air Express Saver Overnight Std Day Overnight P 1 FedEx Account Insure Shipm...

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