Stationaire zuurstofmeting

Oxygen measurer in 3 Types:

Each with 1 channel of or with 6 or 8 channels.
Each channel= measuring point, exist of a electrode or probe and a transmitter.

On the picture on the right each unit contains a transformer, multiple relays, a digital display and a connection for a 24Vemergency electricity supply.

There are also connection possibilities for computers, data loggers and recorders. With the measurer you can add a transmitter and probe per channel which can measure and control independently.

The models 6 and 8 are modular types. When you plug in extra transmitters and probes you can extend the number of measuring points.

The value per channel that the probe measures is constantly compared with the 3 boundary limits that you installed before. In a purification scenario the measuring device works as followed:

If the oxygen level goes below the adjustments you made before, extra oxygen will be added trough a reactor in the water of the basin. You can also put on the blowers or surface aerators and with the help of a frequency regulator you can let them run with maximum efficiency.
If the lowest boundary would be reached and would drop below the set boundary, the alarm will be raised and an extra blower will come in.

	TECHNICAL DETAILS TRANSMITTER UNIT:
	Measurement	36 x 16 x 31 cm
	Connection voltage	220 VAC, 110 VAC, 24 VAC, 24 VDC
	Protection	IP 55
	Accuracy	+/- 0,2 mg/l
	External Signal	0-20 mA
	Load	600 Ohm
	Display	digital display
	Relays	All relays are simply reversed from NC to NO All relays easily switches from NV to NO.
	External contact :	potential free

Oxygen Measurer PLC
A PLC with a maximum of 64 measuring points: with this device you can measure and regulate oxygen, pH ,temperature etc. It is a small and powerful PLC that works in conjunction with modules. The main-unit accepts 64 analog input-signals, has four contact(alarm) inputs and two contact outputs.

The PLC measures, regulates and warns. Parameters are adjustable for each channel. De PLC has the possibility to register data en log it. The PLC can be connected to a personal computer. In collaboration with a personal computer you can work with graphical representations of your system. For instance you can display: probes, valves and pumps.

On the display you can view recent values and next to them all kinds of boundary values that you can manually adjust.

Special Measuring Units:
1. The 840 measure and regulating system as seen on the left picture is a system for extreme circumstances. The main-unit consists of the following parts:

special probe with a sturdy membrane of 100 micron, high quality and high calibration and purification-intervals. Almost insensitive for sludge and grease.
a display that has been placed next to the probe.
a special shackle with a flexible receptacle to keep the probe 30 cm below the water.
With only 2 wires you can connect the unit with an PLC.

2. The PPB system that measures micrograms per liter. Specially made for measuring water that has to be clean of oxygen. For example: hot water heater , condensate en heating-water.

3 The PPB hygienic system, a variant of the previous model. Is specially developed for the dairy an nutrition industry

4. Special unit to measure atmospheric oxygen.

Multivis Waterbehandeling B.V..
Waterbehandeling-Wastewatertreatment
J.P. Santeeweg 1
9312 PB Nietap, The Netherlands

e-mail:
tel:
fax:

j.meindersma@multivis.nl
+31 (0) 594 516748
+31 (0 )594 512905