MNA0010, Revision B October 2014
46
C:
Service Port
– Changing the factory settings
:
The model 7100P Portable analyzer features the ability to manually alter the factory
setting for serial output format, range selection, alarm relay configuration, analog
output, and diagnostics. Changing the factory defaults may be accomplished through
four methods:
•
Hardware Jumper
selection on the main circuit board
…….. OR
•
Level 1 access through the 7100P Portable analyzer keypa
d…….. OR
•
Level 1 access through serial interface of the service port…….. OR
•
Level 2 access through serial interface of the service port
C.1
To change the factory settings by accessing the HARDWARE
JUMPERS:
Range selection and analog voltage output may be configured using the
hardware settings. These changes can also be made directly through the
software via the RS-232 interface. Other changes to the factory settings must
be made by accessing level 1 software either through the front panel keypad or
through the service port serial interface. See C.2 or C.3
NOTE: the analog voltage output the hardware jumpers must set (0-1 or 0-5 or
0-10 VDC).
1. Ensure sure that all interface to the model 7100P Portable analyzer is disabled at the user device.
Ensure that i
nterrupting the alarms, outputs, etc… will not interfere with normal process monitoring.
2. Disconnect power from the model 7100P Portable analyzer unit.
3. Remove the top cover from the analyzer. Remove the two screws retaining the black plastic access plate
on the rear chassis. Remove Set the access plate aside. With the access plate removed, you now have
entry to the optional output terminal blocks. Unplug and remove the terminal blocks. There are two
screws that hold the chassis to the control module. Remove these two screws.
4. Disconnect the plastic tube from the exhaust port of the control module (this tube leads to the flowmeter
bottom port). Disconnect the SS tubing from the sample inlet port of the control module (this leads to the
check valve and pump.
5. Remove four nuts retaining the control module to the front panel of the 7100P chassis. Slide the control
module out.