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Electronic flow and temperature measurement
Avoid longer cycle times and moulded part errors
Flow measurement

Flow measurement

Higher process reliability, better component quality and economic success in injection moulding through parameter monitoring of the temperature control.

Dirt, lime and rust

The causes can be in the form as well as on the periphery
Flow rate and temperature have a great influence on the production process and the component quality
During the course of the mould life cycle, dirt, lime or rust can clog the temperature control channels
This means that the temperature control effects determined in the mould design can no longer be achieved
Ultimately, this leads to longer cycle times and moulded part defects that cause avoidable costs
This makes it all the more important to check the process and the required parameters regularly in a target/actual comparison
Contaminated temperature control channels

Electronic measuring device

Enables precise measurement of flow rate and medium temperature
Use either in stand-alone operation or with data transmission to the machine via standardized M12 signal output
Usually, measurements are taken on the return flow of the mould in order to be able to draw conclusions about the causes in the event of deviations
Either the temperature control of the complete mould is monitored or only individual critical circuits
With the cleaning device PropNew temperature control channels can be cleaned
Flow meter

Automatic monitoring

Warning via built-in LED and transmission to machine
Besides the pure display of measured values, the device can also be used for the automatic monitoring of flow rate and temperature
By programming limit values, a warning can be issued when the value is exceeded or undercut
In stand-alone operation, an optical signal is indicated by the built-in LED
When connected to the injection moulding machine, all signals and actions common to the machine can be controlled
Display measured value flow rate litres per minute

Technical specifications

Suitable for toolmaking, maintenance and plastics processing
Medium: water and tempering oil
Pressure resistance: 40 bar
Flow rate:
Measuring unit: l/min and m³/h
Measuring range: 0.5 l/min to 25 l/min
Measuring steps: 0.1 l/min
Temperature:
Measuring unit: °C
Measuring range: -10°C to +100°
Measuring steps: 1°C
Digital display and M12 connection for machine communication
Flow measurement

Flow measurement HT (high temperature range)

Variant of the set for electronic flow measurement of temperature control up to 180°C
For the high temperature range, we offer a variant with which the flow measurement of the temperature control is possible up to 180°C.
Differences from the standard version:
Separate display screen with magnetic retaining clip
No temperature measurement possible, only for flow measurement
Can only be used with SK060 or SK090 series couplings with E3 HT
Technische Daten:
Medium: water and tempering oil
Pressure range(static): max. 25 bar
Ambient temperature: max. 60°C
Measurement of the flow rate in the measuring range 0.5 l/min to 25 l/min, in the measuring steps 0.1 l/min
Can be used for media in the temperature range +10°C to +180°C
Set for flow measurement in the high temperature range Separate display screen with magnetic retaining clip

scope of delivery

Extensive accessories for flexible application.
Set for flow measurement (Article No.: FL46502):
1x sensor for measuring flow rate & temperature
Quick couplings NW = 9mm mounted at the inlet & outlet
2x double nipples nominal diameter = 9mm
2x adapter quick coupling for reducing to nominal diameter = 6mm
2x double nipples nominal diameter = 6mm
1x power supply unit, 1x instruction manual, 1x Practical plastic case
Other profiles and nominal diameters on request
Set for flow measurement HT (Article No.: FL46600):
1x sensor for flow rate measurement
Separate display screen with magnetic retaining clip
Quick couplings with safety lock NW9 mounted at inlet and outlet
2x double nipple NW9
2x adapter quick coupling NW9/6
2x adapter nipple NW9/6
1x power supply unit, 1x instruction manual, 1x Practical plastic case
Other profiles and nominal diameters on request
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Set for flow measurement: Scope of delivery in practical plastic case with accessories Set for flow measurement HT: Scope of delivery in practical plastic case with accessories
Frequently Asked Questions About Flow Measurement
Either the temperature control of the entire mold is monitored, or only individual circuits are monitored—for example, when a critical channel (small cross-section, many riser holes, channel length, etc.) is known.
Measurements are typically taken on the return line of the mold so that conclusions can be drawn about the causes of any deviations. This makes changes inside the mold visible. Measurement of the supply line is usually handled by the temperature control unit; however, the measuring device can also be used on the supply line if necessary.
Identifying changes in flow and temperature values is only the first step. The crucial part is to respond, analyze the causes, and optimize to ensure an ideal process again.

To make injection molds with reduced flow rates operational again, NONNENMANN offers simple helpers for cleaning the tempering channels with the PropNew series of cleaning devices PropNew.

Also in NONNENMANN's program is the Leakage Testing Device, which allows tools to be checked for tightness in advance.
The causes can lie both in the mold and in the peripheral equipment. During production and the tool lifecycle, depending on water quality, the tempering channels can become clogged with dirt, lime, or rust. This reduces the cross-section and thus the required flow of the tempering. As a result, the tempering effects determined in the tool design are no longer achieved. Leaks in the hoses also represent a possible source of error. Over time, this leads to negative impacts on the overall process, with longer cycle times and part defects causing higher costs.
The piston resting in the valve seat of the housing is lifted by the flowing medium against the spring force. The piston position is queried via a magnetic field sensor and output as an analog signal. The spring force ensures a secure return of the piston to the initial position when the flow decreases.
For flow monitoring, the accuracy is ± (4% of the measured value + 1% of the full scale).

For temperature monitoring, the accuracy is 3 K.
Through the choice of materials, stainless steel 1.4404 and FKM seals, the measuring device meets the requirements in toolmaking, maintenance, and plastics processing.
Would you like to be personally advised?
Our experts are happy to share their knowledge with you.
Jochen Schwegler
Jochen Schwegler
Consultant for Injection Molding
j.schwegler@nonnenmann.net
+49 7181 4087-217
+49 152/09 01 11 63
+49 7181 45351
Elias Sohn
Elias Sohn
Consultant for Injection Molding
e.sohn@nonnenmann.net
+49 7181 4087-162
+49 151/57 62 09 81
+49 7181 45351
Martin Forster
Martin Forster
Sales Consultant
m.forster@nonnenmann.net
+49 7181 4087-272
+49 157/85 00 98 09
+49 7181 45351