Enmet EX-5150-MOS Instrukcja Użytkownika Pobierz pdf (Strona 15)

EX-5150-MOS ENMET Corporation

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.

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-5150-MOS may not respond to it’s target gas.

5.4 Sensor Replacement

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 have the EX-5150-MOS serial number

available when contacting your Distributor or ENMET Corporation Technical Support.

To replace a sensor, it is necessary to open the transmitter housing.

Remove the overlay and screws retaining the PC Board in the enclosure. Refer to Section 3.2, Figure 3.

Remove the sensor connector J8 and sensor

Wire in the new sensor. Refer to the wiring Table in Section 3.2, Figure 3.

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

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!!

6.0 Replacement Part Numbers

ENMET replacement part numbers:

Description Part Number

For EX-5150-MOS p/n 10014-008

Sensor, 12 03033-812

Sensor, 13 03033-813

Sensor, 32 03032-832

Sensor, 19 03033-019

For EX-5150-MOS p/n 10014-009

Sensor, 1 03033-109

Regulator 03700-001

Overlay 06000-058

Magnet 50030-001

Calibration Gas, Consult ENMET Distributor or ENMET Corp.

OTE

: See Table 3 for sensor part number and calibration gas reference.

OTE

: See Figure 1 for location of marking on sensor.

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