59
TROLL
9500
Operator’s Manual
0095110 rev. 007 01/09
Q:
A:
Will a sensor work if installed in the wrong port?
Physically, a sensor may be plugged into any port. However,
a sensor that is detected in the wrong port for its type will
generate an error message in the software. The message
will let you know which port or ports the incorrectly installed
sensor should be moved to.
In this case, remove the offending sensor and install it in the
correct port. Then “refresh” the device view in the software
to update the display.
sensor
removal
tool
EXTENDED SENSOR SET
The Extended Sensor set includes:
s !MMONIUM
s #HLORIDE
s .ITRATE
s 4URBIDITYFACTORYINSTALLED
s 2$/
®
Optical Dissolved Oxygen
INSTALLING SENSORS
The diagram below represents a head-on view of the “sensor block”
in the front end of the MP TROLL 9500. There are four sensor ports,
plus permanently installed pressure and/or turbidity and temperature
sensors. Pressure and turbidity sensors are optional—if your instru-
ment does not include one or both of these sensors, there will be a
permanently installed plug in the port.
Do not try to remove the pressure or turbidity sensor or
permanently installed plug.
Although the sensor design permits any sensor to install into any
sensor port without damage to either the sensor or the instrument,
for proper functioning please insure that sensors are installed in their
intended ports, as shown in the diagram.
To install sensors:
1. Remove the restrictor or Cal Cup from the front end of the MP
TROLL 9500. This allows access to the sensor block shown below.
2. Remove the cap or storage bottle from the sensor. Retain the cap
or bottle for future storage and protection of the sensor. If the con-
nector end is covered with a cap, remove it also.
TIP:
To ensure optimum membrane response for new ion-
selective electrodes (pH, ORP, nitrate, ammonium, chloride),
soak the sensor in calibration solution for at least 15 minutes
and up to several days before calibration.
3. Remove any moisture or dirt from the area around
the port where you will install the sensor, then use the
sensor removal tool to remove the plug from the port.
Retain the plug for use with fewer than 4 removable
sensors installed.
TIP:
If you are installing a sensor in port 3 (the central port),
install it first. This will make it easier to install sensors in
other ports.
4. Remove any moisture or debris from the connector in the bottom of
the port with a clean swab or tissue.
5. Check lubrication of the sensor o-rings.
The sensor o-rings require generous lubrication before
installation. New sensors will be lubricated at the factory. If
the o-rings appear dry, apply a silicone lubricant before
installation.
6. Align the mark on the sensor with the alignment mark on the cor-
rect port (see diagram), or visually align the sensor connector pins
with the port connector pins.
7. Press the sensor firmly into the port until it is securely
seated. When properly inserted a small gap (width of
the sensor removal tool) remains between the instru-
ment body and the widest part of the sensor, for ease
of removal.
SECTION 10: MONITORING WATER QUALITY: OVERVIEW
sensor
insertion
tool
Conductivity
Pressure/Turbidity
(or plug)
Temperature
pH/ORP
or RDO
or pH
or ammonium
or chloride
or nitrate
RDO
or pH
or ammonium
or chloride
or nitrate
or turbidity wiper
End view of sensor block
alignment mark
D.O. (polarographic)
or ammonium
or chloride
or nitrate