EN
ProGap
Microwave barrier
Product Information
SWR engineering Messtechnik GmbH
Product Information
Using / Function
The microwave barrier ProGap is a universally and flexibly By means of appropriate windows of non-metallic
usable sensor, consisting of a transmitter and a receiver material, the metering thus can be completely
based on the latest microwave technology. It is brought decoupled from the process. That’s particularly
into action for level detection or for positioning of items. interesting for the measurement of aggressive,
abrasive or bulky material or at extreme pressures and
The microwave barrier is a contactless measuring method. temperatures.
It can be installed in bunkers, ducts, shafts or at free-
falling stretches. Depending on the model the range is The ProGap can also be applied in difficult
either 0…4 m or 0…18 m. Higher ranges are as well circumstances like high temperatures and pressures by
possible but have to be discussed. In case that container means of a process-adapter (see page 4).
sides, housings or ducts are not of metal, it is possible to By using microwaves there is a high insensitivity to
measure from the outside. built-up on the sensor window.
Applications – practical examples
• Detection of beer foam
Ascending beer foam is detected through a quartz glass
plate in order to avoid an unwanted development of foam
which could exceed a problematic limit for the whole
process.
• Monitoring of garbage incineration
Due to its lack of sensitivity regarding build-up on the
sensor window, the ProGap is successfully used in
garbage incinerating plants.
The job of the ProGap is to control the feed of garbage via
a feeding chute into the burner.
• Dosage of fluff in a cement plant
The ProGap executes a permanent Min/Max control of
the dosage of fluff into the bunker.
Min = filling start
Max = filling stop
Max-Max = overfilling protection
2
Product Information
Installation
Transmitter and receiver are installed by screwing
them into a G 1½-inch-screw neck.
The fitting position of the devices is arbitrary. Important G 1 1/2", L=30
ø 52
Transmitter Receiver
is that transmitter and receiver are positioned precisely
to each other. The polarisation mark of each device must
point in the same direction. The adjustment is made by G 1 1/2", L=30
ø 52
means of a counter-screw fitting. 216 216
Connection Dimensions Transmitter and Receiver + Installation
Connection of the power supply is made at transmitter
and receiver. The relay output is made available at the
receiver.
Commissioning
The operating elements are located easily accessible in
the receiver housing. Switching sensitivity and response Thread mounting
time will be adjusted. Due to the field intensity display,
integrated in the receiver, the installation is very easy and
fast. No additional evaluation unit is necessary.
Technical Data
Mounting with separating flange
Housing: Stainless steel 1.4571
Material
Sensor-Isolation: POM
Protective system IP 65; DustEx (optional)
-20 …+80 °C
Working temperature
-20…+220 °C (with process-adapter)
(Process temperature)
Max. 1000 °C (with ceramic-flange)
Ambient temperature -20…+60 °C
Working pressure
Max. 1 bar A
Max. 20 bar (with process-adapter)
0…4 m B
Detection range 0…18 m
> 18 m (on demand)
24 V DC (- 10 / +15 %)
Mounting with pipe clamp
Power supply
24 V AC (- 10 / +15 %)
Power consumption
Current consumption
Approx. 1.8 VA
Max. 100 mA *
Relay output max.
• Voltage 120 V AC / DC
• Current 1.25 A
• Capacity 150 VA, 50 W
certificated
Response time
Measuring frequency
0.25 …5 s (continuously adjustable)
K-Band 24.125 GHz (± 100 MHz)
according to AT E X
Transmitting power Max. 5 mW
Weight
Transmitter: 1.1 kg * The ProGap S (remote) is certified to ATEX 21, 22 for
Receiver: 1.1 kg
use in dust applications.
3
Product Information
Use as pressure adapter / temperature adapter
The ProGap sensor itself can be used at pressures of A pressure adapter from POM, for higher temperatures
up to 1 bar and temperatures of up to 80 °C. a temperature adapter from tecapeek (to 220 °C) is
available to you for higher pressure (to 20 bar).
Mounting of pressure adapter / temperature adapter
The mounting of the pressure / temperature adapter is The housing of the ProGap is screwed into the
identical. He is screwed into a welded G 1½ inch thread G 1½ inch female thread of the adapter.
neck, provided by the customer.
Technical Data
Stainless steel 1.4571, Stainless steel 1.4571,
Material
POM diaphragm Tecapeek diaphragm
Temperature -20…+80 °C Max. +220 °C
Pressure Max. 20 bar Max. 20 bar
G
G 1½-Zoll G 1½-Zoll
Thread
on both sides on both sides
Wrench width 55 mm 55 mm
(All rights reserved.)
SWR engineering Messtechnik GmbH
Gutedelstraße 31 · 79418 Schliengen (Germany)
Fon +49 7635 82 72 48-0 · Fax +49 7635 82 72 48-48 · www.swr-engineering.com
4 EN 09/10/2015
