Xylem WTW MPP 910 IDS User manual

OPERATING MANUAL

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MPP 910 IDS

MPP 930 IDS

MODULARE MULTIPARAMETERSONDE MIT TIEFENMESSUNG

MPP 910 IDS MPP 930 IDS

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MPP 9x0 IDS

Printed in Germany.

MPP 9x0 IDS - Contents

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MPP 9x0 IDS Contents

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Opening and closing the plug connections . . . . . . . . . . . . . . . . . 7

2.2 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Mounting the holding shackle . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1 Dimensions, weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1.1 MPP 910 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1.2 MPP 930 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.1.3 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2 Application characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.4 Measurement characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5 Wear parts and accessories . . . . . . . . . . . . . . . . . . . . . . . . . 15

Overview MPP 9x0 IDS

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1Overview

The MPP 9x0 IDS multi-parameter probe is a modular system, consisting of

a basic module and various expansion options.

System

components

(figure see page

on the right)

Depth

measurement

On the shaft of the basic module there is a pressure sensor with integrated

temperature measurement. Based on the pressure and temperature value

the meter calculates the depth of immersion in the measuring medium. The

temperature measurement is used for the temperature compensation of the

pressure sensor and for density compensation.

1Basic module MPP 910 IDS with one sensor plug-in position

2Basic module MPP 930 IDS with three sensor plug-in positions

3AS/IDS-xx connection cable between basic module and meter or sen-

sor and meter (xx = different lengths available)

4Blind plug BPO/IDS 900 for cable plug-in position

Expansion options:

5Digital sensors of the XXX-P series, e.g. FDO 925-P

6BPI/IDS 900 blind plug for BPI/IDS 900 sensor plug-in position

7Long protective tube, to protect the sensors connected

8Short protective tube, for usage of the basic module without any sen-

sors. Reduces the distance between the depth/temperature sensor

and the bed of the water body

9Sinker

10 Holding shackle (accessory) to be screwed on instead of the protec-

tive ring (pos. 11)

11 Protective ring

Depth/temperature sensor

MPP 9x0 IDS Overview

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MPP 930 IDSMPP 910 IDS

Overview MPP 9x0 IDS

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IDS plug

connection

All plug connections of the basic module, sensors, connection cable and blind

plug are of the same type. A lock protects the connections against being inad-

vertently disconnected.

With the connection cable, the individual sensors can also be directly

connected to the meter if necessary (for calibration or firmware update).

Recommended

fields of

application

On-site measurements in rivers, lakes, sea water and brackish water,

wells, leachate that is not or only slightly polluted

Measurements in boreholes

Depth profile measurements

Measurements in ground and spring water

MPP 9x0 IDS Operation

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2 Operation

2.1 Opening and closing the plug connections

The following instructions apply to all actions where any components are con-

nected or disconnected (e.g. exchange of blind plug ⇌sensor):

Opening the plug

connection

If necessary, clean the plug connection

Open the locking device (step 1)

Use your thumb and index finger to press the clips of the connector

together, and pull the connector out of the plug (step 2).

Closing the plug

connection

Make sure that the plug connection is completely dry and clean.

Align the guidance of the connector with the groove in the plug and insert

the connector in the unlocked plug until it catches (step 3).

Close the locking device (step 4).

Plug connection

closed and locked

Guidance

Groove

Operation MPP 9x0 IDS

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NOTE

All plug-in positions have to be equipped with sensors or closed with

blind plugs before the multi-parameter probe is immersed in the

measuring medium.

2.2 Commissioning

Prepare the sensors for the measuring operation (see sensor operating

manual). For calibration, connect the sensors to the meter with the 1.5 m

connection cable.

Equip the basic module with the required sensors:

– Unscrew the short protective pipe

– Per plug-in position:

Replace the blind plug with a sensor (depending on the required

design, how to do this is described on page 7).

– Screw on the long protective pipe

Screw the sinker on the open end of the protective pipe so the probe will

go down faster.

Connect the basic module to the meter.

NOTE

The connection cable without any problems withstands the tractive

forces that occur when it is pulled by hand in a water body where there

are no strong current and no obstacles. If the current is strong or if

there are obstacles the tractive forces can temporarily be much higher

and cause the cable to snap. If you are in doubt we recommend to

attach the multi-parameter probe with the holding shackle (accesso-

ries) to a sufficiently strong rope or a chain so the probe will not be lost.

NOTE

All plug-in positions have to be equipped with sensors or closed with

blind plugs before the multi-parameter probe is immersed in the

measuring medium.

Calibrating the sensors while they are installed is not possible.

The depth and temperature measurement of the basic module is

calibration free (factory calibration).

MPP 9x0 IDS Operation

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2.3 Mounting the holding shackle

The holding shackle is screwed onto the sensor instead of the protective ring.

To do so, proceed as follows (sample figure of MPP 930 IDS):

Disconnect the connection cable from the basic module (see page 7)

Unscrew the protective ring (pos. 1).

Thread the connection cable through the connecting piece of the holding

shackle (pos. 2) and reconnect it to the basic module

Screw the holding shackle to the basic module

Cleaning MPP 9x0 IDS

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3 Cleaning

Exterior cleaning Remove water-soluble contamination by rinsing with deionized water. Other

types of contamination have to be removed as follows while the contact time

with the detergents should be kept as short as possible:

Thoroughly rinse the multi-parameter probe with water after this.

Cleaning the

pressure sensor

To clean the pressure sensor, remove the screen lid with your fingernails.

Then rinse the recess with a mild water jet (e.g. wash bottle or slightly-

running faucet).

NOTE

The membrane of the depth sensor is very sensitive to mechanical

impacts. Therefore, avoid any touching of the membrane. Do not point

a sharp water jet at the membrane while cleaning it.

Please observe the instructions on cleaning the sensors given in

the respective sensor operating manuals. If necessary, remove

the sensor for cleaning and close its plug-in position with a blind

plug.

Contamination Cleaning procedure

Fat and oil Rinse with water containing household wash-

ing-up liquid

Lime and hydroxide deposits Rinse with citric acid (10 % by weight)

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