S S REGELTECHNIK ALD Measuring Transducer Instruction Manual

S S REGELTECHNIK ALD Measuring Transducer

Product Information:

• The product is a barometer or measuring transducer for atmospheric pressure. It is calibratable and equipped with an active output. The product is designed to measure atmospheric pressure and comes with a weather and sun protection hood. The housing is made of stainless steel V2A (1.4301) and has dimensions of 130 x 180 x 135 mm. The product has a display with an LCD screen.
• The product has a pressure range that can be adjusted. The available pressure ranges are 600-1100 hPa, 700-1100 hPa, 800-1100 hPa, and 900-1100 hPa. The output of the product is switchable between 0-10 V and 4-20 mA. The display has two different model numbers: 1301-1157-0130-200 and 1301-1157-2130-200. The product supports multiple range switching and the unit of measurement can be set to Pa, kPa, bar, mbar, or mWs.
• The product also has adjustable settings for signal filtering and output type. The signal filtering can be set to a time interval of 5 or 10 seconds. The output type can be set to either voltage (0-10 V) or current (4-20 mA). The product also allows for manual offset adjustment.
• The product is powered by an AC or DC power supply of 24V. It has a working resistance and load resistance. The power consumption and current consumption of the product are not specified in the manual. The product has a temperature drift and is suitable for use in various ambient temperatures. It meets certain standards and has a specific protection class and type.

Product Usage Instructions

1. Install the product in a suitable location, ensuring that it is protected from weather and sunlight. Use the provided weather and sun protection hood.
2. Connect the product to a power supply. Use either AC 24V or DC 24V power source. Make sure to follow the correct wiring diagram provided in the manual.
3. Set the desired pressure range by adjusting the settings. The available pressure ranges are 600-1100 hPa, 700-1100 hPa, 800-1100 hPa, and 900-1100 hPa. Refer to the manual for instructions on how to adjust the settings.
4. Choose the desired output type by adjusting the settings. The product supports switchable output between 0-10 V and 4-20 mA. Refer to the manual for instructions on how to adjust the settings.
5. Set the signal filtering time interval if needed. The options are 5 seconds or 10 seconds. Refer to the manual for instructions on how to adjust the settings.
6. If necessary, manually adjust the offset of the display. This can be done by following the instructions in the manual.

Dimensional drawing

Calibratable barometer PREMASGARD® ALD with active output (U/I switchable) and 4 measuring ranges (max. 600…1100 hPa, switchable), in a compact plastic housing with quick-locking screws, optionally with/without display. The pressure sensor is used for measuring atmospheric air pres-sure in clean air (non-precipitating) or other non-aggressive, non-combustible gases. It is used in various applications such as ventilation and air conditioning technology, in meteorological measurement stations and air-pressure-dependent control systems. The piezoresistive measuring element is temperature-compensated and guarantees a high degree of reliability and accuracy. The sensor is factory- calibrated; an environmental precision adjustment by an expert is possible.

TECHNICAL DATA

PREMASGARD® ALD Measuring transducer for atmospheric pressure

Conversion table for pressure values:

mH2O

DIP switches for pressure range setting, output attenuation and zero compensation :

Pressure range

(adjustable)

| DIP 1| DIP 2
---|---|---
600…1100 hPa| OFF| OFF
700…1100 hPa| O N| OFF
800…1100 hPa| OFF| O N
900…1100 hPa (default)| O N| O N
Measurement signal filtering

(selectable time interval)

| DIP 5
---|---
10 s (default)| OFF
1 s| O N
Output

(selectable)

| DIP 6
---|---
Voltage 0 -10 V (default)| OFF
Current 4… 20 mA| O N

The following configurations can be preset via DIP switches. The DIP switch sliding blocks can be moved without using tools. DIP switch 3 and 4 are not assigned.

Pressure ranges
In each case four different pressure ranges depending on the type of device can be preset via DIP switches DIP 1 and DIP 2.

Measurement signal filtering
In order to stabilize the pressure measurement signal and the output voltage, the measurement signal is filtered. The time interval for such averaging can be preset via DIP switch DIP 5 to 1 or 10 seconds. By a longer filtering interval, the settling time of the sensor is automatically extended.

Manual offset adjustment

• Offset adjustment is done at a potentiometer on the circuit board within an adjustment range of ± 50 hPa of the device’s pressure range.
• Ex-factory this potentiometer is in center position and is lacquer sealed.
• Offset adjustment is carried out using a tool called “screwdriver 2.5” (blade with in mm).

Readout in the display
In the 1st line of the display, the ACTUAL pressure up to the measuring range limit is displayed.
hP = Hektopascal

I – Output

(MB: xx…+1100 hPa)
Output voltage at central position of the offset controller 20 mA at 1100 hPa

Output voltage 4…20 mA lower value to final value

U – Output

(MB: xx…+1100 hPa)
Output voltage at central position of the offset controller 10 V at 1100 hPa

Output voltage 0 …10 V lower value to final value

Important notes

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.

• Recommended installation position: cable supply points downwards.
• Attention – when leading in a cable, make sure, it does not pass under the circuit board. This can damage the electronics!
• The voltage output is short-circuit proof. Applying overvoltage at the voltage output will destroy this device.
• At an adjusting element, the output signal can be shifted by ±50 hPa. In this way, possible ageing or drift effects can be compensated.
•  By changing the offset at the adjusting element, factory-calibration is lost!
• 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 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 at 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 i rradiation 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 enclosures or enclosure 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 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 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!

Load resistance diagram

COPYRIGHT

• © Copyright by S+S Regeltechnik GmbH
• Reprint in full or in parts requires permission from 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.

Schematic diagram

Connecting diagram

ABOUT COMPANY

• S+S REGELTECHNIK GMBH THURN-UND-TAXIS- STR. 22 90411 NÜRNBERG ⁄ GERMANY FON
• +49 (0) 911 ⁄ 5 19 47- 0
• [email protected]
• www.SplusS.de

References

• S+S Regeltechnik | Ihr sensorik Partner

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