S S REGELTECHNIK Premasreg 716x Pressure Measuring Transducer Instruction Manual

S S REGELTECHNIK Premasreg 716x Pressure Measuring Transducer Instruction Manual

Operating Instructions, Mounting & Installation
Pressure measuring transducer / switch / control switch for volume flow, differential pressure, filter monitoring and liquid level detection, incl. connection set

S+S REGELTECHNIK GMBH THURN-UND-TAXIS – STR. 22 90411 NÜRNBERG / GERMANY FON +49 (0) 911 / 519 47- 0
mail@SplusS.de
www.SplusS.de

The electronic PREMASREG® 716x pressure sensor and switch is equipped with measuring functions for volume flow, differential pressure, filter monitoring and liquid level detection based on pressure measurement in clean air. The devices with a housing made from impact-resistant plastic, with cable gland or M12 connector according to DIN EN 61076-2-101 and with metal pressure port nozzles (quick connect optional) are fitted with one switching output, one continuous output and one backlit display for setting the switching point and displaying the ACTUAL values. The piezo resistive measuring element guarantees a high degree of reliability and accuracy.

This pressure sensor is used in clean room, medical and filter technology, in ventilation and air conditioning ducts, in spray booths, in large-scale catering facilities, for filter monitoring and level measurement or for triggering frequency converters. The medium measured is air (non- precipitating), or other gaseous, non-aggressive, non-combustible media.
It has a manual zero point pushbutton and an offset potentiometer for final value correction. Parameter entry is menu-based and is easy to perform using three buttons with the help of the display. The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible. A connection set ASD-06 (2 m connection hose, two pressure nipples, screws) is included in the scope of supply.

TECHNICAL DATA

ACCESSORIES

TYPES OF MONITORING:

(A) Below-atmospheric pressure:
P1 (+) is not connected, but open to the atmosphere
P2 (–) connected to inside of duct
(B) Filter:
P1 (+) connected upstream of filter
P2 (–) connected downstream of filter
(C) Ventilator:
P1 (+) connected downstream of ventilator
P2 (–) connected upstream of ventilator
(D) Volume flow:
P1 (+) dynamic pressure, Connected in flow direction
P2 (–) static pressure, Connected free of dynamic pressure components
(E) Level:
P1 (+) Connection submerged in medium
P2 (–) Connection is open to the atmosphere
Pressure connections at the pressure switch are marked with
P1 (+) for higher pressure and
P2 (–) for lower pressure.

Setting the offset:

Automatic offset correction:

1. The device must be operative for at least 60 minutes before zero point setting is started.
2. Connect pressure inputs P (+) and P (­) with a hose. (differential pressure between the connections = 0 Pa).
3. To set the zero point, press the AUTO ZERO pushbutton for 10 seconds without interruption.

By pressing the pushbutton, a countdown of approx. 10 seconds is started. The yellow LED is flashing and the countdown is shown on the display. After the countdown period has elapsed, zero point calibration takes place. This is indicated by continuous light of the LED, and on the display by switching from “AUTO 0” to “PROG 0”. Note: When releasing the pushbutton during countdown (counter > 0), zero point setting is immediately aborted!

Manual offset adjustment:
The offset potentiometer functions in addition to and independently of the automatic setting of the zero point. With the OFFSET potentiometer, a deviation outside of the zero point can be aligned. The range for adjustment is approx. ± 10 % of the pressure range.

Automatic zero point calibration (optional):
A zero point calibration is carried out cyclically via an internal valve. The cycle time can be set between 15 minutes and 24 hours using the SET potentiometer. During the automatic calibration, the output value remains at its last pressure value.

PREMASREG® 716x
(Range: 0…+ xx Pa)
After successful zero point calibration, the output voltage is 0 V at 0 Pa pressure difference (with the offset knob in central position)!
Output voltage 0…10 V
for pressure difference from 0 Pa to final value

PREMASREG® 716x
(Range: – xx …+ xx Pa)
After successful zero point calibration, the output current is 5 V at 0 Pa pressure difference (with the offset knob in central position)!
Output voltage 0…10 V
for pressure difference – ΔP… +ΔP

Display readout:
The first line of the display shows the measured ACTUAL value for volume flow rate, pressure, contamination degree, or level. The second line shows the corresponding unit (e.g.: Pa, m3/h, %, cm). In the third line, the switching status of the relay (circuit completed/empty) with the corresponding set value can be read.

Configuring the measuring function:

Setting the function type
Press the SELECT pushbutton to activate setup mode. Use the two UP and DOWN pushbuttons to select the desired function type (formulas for the function types, see page 11).

Complete the entry by pressing the SELECT pushbutton. After selecting the measuring function, you are automatically guided through the parameters that must be set (see next page).

Setting the parameters:
Type 0: Volume flow rate

K factor from 1 to 3000
Depending on the manufacturer, the K factors are calculated differently. Therefore, it is necessary to use the corresponding calculation formula to enter data:

Unit of volume flow rate

0 = m3/s
3 = liters/s
1 = m3/min
4 = liters/min
2 = m3/h
5 = liters/h
kS+S = kEBM-PAPST
kS+S = k ZIEHL-ABBEG
kS+S = kGEBHARDT / 0.7746
kS+S = kROSENBERG / 0.7746
kS+S = 3600 / k FLÄKT

Volume flow rate at max. output signal 10 V
Setting (measuring range end value = 10 V) 10 % to 100 % of the max. possible volume flow rate in the selected measurement unit.

Relay switching threshold at volume flow rate
Setting (relay switch point) 10 % to measuring range end value in the selected measurement unit.

Type 1:
Differential pressure

Differential pressure for max. output signal 10 V Setting (measuring range end value = 10 V) 10 % to 100 % of the max. possible differential pressure in Pa.

Relay switching threshold at differential pressure Setting (relay switch point) 10 % to measuring range end value in Pa.

Type 2:
Filter contamination

Switching threshold for filter replacement Setting switch point for filter replacement (measuring range end value = 10 V) 0 % to 100 % of the max. possible differential pressure in Pa.

Density 700 … 1300 kg/m3 Enter density of the liquid

Switching threshold for level height relay Setting (relay switch point) 10 % to measuring range end value in cm.

This device can be mounted in any position. The voltage output is short- circuit proof. Applying overvoltage at the voltage output will destroy this device. Pressure ranges are indicated on the device label. Applying measuring pressures beyond that range will cause mismeasurements and increased deviations or may destroy the device. ­

– Attention! When leading in cables, make sure, they do not go under the board.
This might buckle or damage hose connections!
– Pressure inputs are “poled“ i.e. the above-atmospheric pressure line must be connected at input P+ and the below-atmospheric pressure line must be connected at input P–.
– At an adjusting element, the output signal can be offset by ± 10 % of the final value of the measuring range.
In this way, possible ageing or drift effects can be compensated.
– If this device is operated beyond the specified range, all warranty claims are forfeited.

Our “General Terms and Conditions for Business” together with the “General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry” (ZVEI conditions) including supplementary clause “Extended Retention of Title” apply as the exclusive terms and conditions.

In additionIn addition, the following points are to be observed: ­

– These instructions must be read before installation and putting in operation and all notes provided therein are to be regarded!
– A suitable weather and sun protection hood must be used when installed outdoors.
– Devices must only be connected to safety extra-low voltage and under dead- voltage condition. To avoid damages and errors the device (e.g. by voltage induction) shielded cables are to be used, laying parallel with current- carrying lines is to be avoided, and EMC directives are to be observed.
– This device shall only be used for its intended purpose. Respective safety regulations issued by the VDE, the states, their control authorities, the TÜV and the local energy supply company must be observed. The purchaser has to adhere to the building and safety regulations and has to prevent perils of any kind.
– No warranties or liabilities will be assumed for defects and damages arising from improper use of this device.
– Consequential damages caused by a fault in this device are excluded from warranty or liability.
– These devices must be installed and commissioned by authorised specialists.
– The technical data and connecting conditions of the mounting and operating instructions delivered together with the device are exclusively valid. Deviations from the catalogue representation are not explicitly mentioned and are possible in terms of technical progress and continuous improvement of our products.
– In case of any modifications made by the user, all warranty claims are forfeited.
– This device must not be installed close to heat sources (e.g. radiators) or be exposed to their heat flow. Direct sun irradiation or heat irradiation by similar sources (powerful lamps, halogen spotlights) must absolutely be avoided.
– Operating this device close to other devices that do not comply with EMC directives may influence functionality.
– This device must not be used for monitoring applications, which serve the purpose of protecting persons against hazards or injury, or as an EMERGENCY STOP switch for systems or machinery, or for any other similar safety-relevant purposes.
– Dimensions of housing or housing accessories may show slight tolerances on the specifications provided in these instructions.
– Modifications of these records are not permitted.
– In case of a complaint, only complete devices returned in original packing will be accepted.

Notes on commissioning: This device was calibrated, adjusted and tested under standardised conditions. When operating under deviating conditions, we recommend performing an initial manual adjustment on-site during commissioning and subsequently at regular intervals.
Commissioning is mandatory and may only be performed by qualified personnel! These instructions must be read before installation and commissioning and all notes provided therein are to be regarded!

SUPPLY VOLTAGE :

For operating voltage reverse polarity protection, a one-way rectifier or reverse polarity protection diode is integrated in this device variant. This internal one-way rectifier also allows operating 0 – 10 V devices on AC supply voltage.

The output signal is to be tapped by a measuring instrument. Output voltage is measured her against zero potential (O V) of the input voltage!

When this device is operated on DC supply voltage, the operating voltage input UB+ is to be used for 15…36 V DC supply and UB ­ or GND for ground wire!

When several devices are supplied by one 24 V AC voltage supply, it is to be ensured that all “positive” operating voltage input terminals (+) of the field devices are connected with each other and all “negative” operating voltage input terminals (­) (= reference potential) are connected together (in-phase connection of field devices). All outputs of field devices must be referenced to the same potential!

In case of reversed polarity at one field device, a supply voltage short- circuit would be caused by that device. The consequential short-circuit current flowing through this field device may cause damage to it.
Therefore, pay attention to correct wiring!

© Copyright by S+S Regeltechnik GmbH
Subject to errors and technical changes. All statements and data herein represent our best knowledge at date of publication. They are only meant to inform about our products and their application potential, but do not imply any warranty as to certain product characteristics. Since the devices are used under a wide range of different conditions and loads beyond our control, their particular suitability must be verified by each customer and/or end user themselves. Existing property rights must be observed. We warrant the faultless quality of our products as stated in our General Terms and Conditions.
WS-03 Wetter- und Sonnenschutz (optional) Weather and sun protection hood (optional) Protection contre les intempéries et le soleil (en option) ()

References

• S+S Regeltechnik | Ihr sensorik Partner

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