Installation & User Manual
June 2013 Ed 19UK
Page 27 of 28
MAS2600 Test sheet
ATT.: Emerson Process Management
Marine Solutions
Damcos A/S, Service Department
FAX.: +45 5578 7272
MAS2600:
Measurements:
Measure voltage between terminal
5 and 6
V DC
Voltage should be in the range 14 to 33 V DC.
Check power supply.
Measure ripple voltage between
terminal 5 and 6
V AC
Voltage must not exceed 2 V AC. Check power
supply.
Measure sensor excitation voltage
between terminal 7 and 10
V DC Voltage should be in the range 3.0 to 6.2 V DC
Measure sensor excitation voltage
between terminal 8 and 9
mV DC Voltage should be in the range -15 to 100 mV DC
Measure current in supply lead to
terminal 5 mA DC
Current should be in the range 4 to 20 mA and the
same value as measured in point 6. If not the
amplifier may be defect.
Measure current in supply lead to
terminal 6 mA DC
Current should be in the range 4 to 20 mA and the
same value as measured in point 5. If not the
amplifier may be defect.
Measure sensor resistance with
sensor cable unconnected
If the resistance measured is less that 1 M Ohm the
sensor is defect.
Terminal 7 to cable shield
Terminal 8 to cable shield
Terminal 9 to cable shield
Terminal 10 to cable shield
Measure sensor bridge resistance
with sensor cable unconnected
If the resistance measured is less than 1 K Ohm or
greater that 50 K Ohm the sensor is defect.
Terminal 7 to Terminal 10
Terminal 8 to Terminal 10
Terminal 9 to Terminal 10
Visual inspection of the transmitter:
Is the cable damaged?
Are there sharp bends on the cable?
Are there moisture/liquids in the breather tube?
Is the diaphragm damaged?
