Broadley Technologies 14 Bedienerhandbuch PDF herunterladen (Seite 49)

Model 14 Oxygen Analyzer

7-4

Interferences Are there any sources of potential

interference, chemical, external,

temperature, pressure, etc.?

Cable shield is not connected Check and connect

Defective CPU board If problem persists, call the Service Technician

Temperature measurement Probe connected wrong Check probe connection

is not correct

Temperature not calibrated Calibrate for temperature. Also check the

T.C. for correct resistance (ohmmeter)

CPU board is defective If problem persists, call the Service Technician

Display reading static; CPU board is malfunctioning and/or Check probe connection

cannot be changed in some other transmitter hardware is

any way defective Initiate a software RESET

If Steps 1-3 do not remedy the problem,

make a cold start (RESET): interrupt the

power for 5-10 seconds

Reprogram the instrument

If problem persists, call the Service Technician

Relays not energized Instrument was programmed Check whether the correct relay parameters

incorrectly and set points have been programmed

Hardware is defective Check that the programmed set points are

compatible with the programmed measuring

range

Check the relay characteristics for proper

functioning using an ohmmeter

If problem persists, contact the Service

Technician

Wrong output current, Instrument was incorrectly Check the programmed output-current

output current remains programmed parameters

locked at 0 or 20 mA

Connection of the Model 14 with Check the cables

peripherals (recorder, etc.) are faulty,

loose or defective

Hardware is defective Compare the measured value with the

output-current range

If problem persists, call the Service Technician

Polarization voltage Wrong configuration (3 electrode Check that the switches under the

incorrect mode) amperometric board are correctly positioned

(“on”)

Wrong programming Check programmed parameters

MALFUNCTION POSSIBLE CAUSE REMEDIES

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 55 56

Keine Kommentare

Broadley Technologies 14 Bedienerhandbuch Seite 49