SUPPORTING ITEMS

# ITEM DESCRIPTION
1 SPECIFICATIONS related QUESTIONS and DEFINITIONS

1.1 What is maximum current for SMARTSCAN SPDT relays?

The SPDT relay can be used with maximum power of 60 Watt. For example, at 30VDC, 2A may be used. At 240VDC, 0.25A may be used.

1.2 What are the tracking rates of SolidAT ultrasonic sensors?

Depending on model and settings, tracking rates can vary from 5 cm per minute and up to 10 meters per minute (Gauger systems). In most models, tracking rate can be setas an application specific balance between tracking rate and stability.

1.3 What is an SPDT Relay in SMARTSCAN systems?

"SPDT" refers to Single-Pole-Double-Throw, characterized by one input and two output contacts. SPDT relays have three terminals: "C" terminal is Common, "NC" terminal is a Normally Closed contact and "NO" terminal is a Normally Open contact.

1.4 What is maximal distance between SMARTSCAN control unit and sensor?

The maximal distance is up to 200m, defined by the cable length between the control unit and sensor unit.

1.5 How do I calculate the accuracy for each sensor?

The accuracy percentage is defined in each product datasheet (i.e. 0.1%, 0.2% etc.). This percentage refers to the maximum measuring range of the device. For example, in SmartLite, maximum range is 10 m and accuracy is 0.25%, which means that deviation is up to 2.5cm.

1.6 What is the IP rating of SolidAT sensors?

THe IP rating (or sealing rate or NEMA rating) differs from device to device and in some cases the same device may be purchased at lower or higher IP rating. For example, control-unit of of SmartScan systems is normally rated IP65. GaugerGSM are rated IP68 which is the highest rating.

1.7 Can we cut or add to sensor cables in SMARTSCAN systems?

Sensor cables can be cut or extended under three constraints: A) The model is NOT certified for explosive atmospheres. B) Using only the recommended cable type and recommeded connector-set. (C) Extending or cutting to a new length within the allowed limits. For example, a 50 m cable may be be suitable to a new length range of 25m to 75m.

1.8 Can Liquid Crystal Display (LCD) function in sub zero temperatures?

Usually LCDs of such kind, are suitable for a temperature range of -20¡ã C to 80¡ã C (-4¡ã F to 176¡ã F) according to the manufacture spec sheet. This does not affect the 4-20 mA output.

1.9 What is the ¡°white¡± material on the tip of SMARTSCAN 50 Khz sensors?

The white material is part of the sensor. This part is the acoustic window made of glass reinforced epoxy).

1.10 What are the specifications for battery usage with SMARTSCAN50?

SmartScan typically detects a target within 30 seconds. Power consumption during that time is 180mA for a 24VDC source. A measurement cycle consists of turn-on, measure and turn-off again. For a scenario of one cycle per 15 minutes, power capacity of 71AH is required per year.

1.11 What are the specifications for battery usage with MONOSCAN?

MonoScan typically detects a target within 20 seconds. Power consumption during that time is 28mA for a 24VDC source. A measurement cycle consists of turn-on, measure and turn-off again. For a scenario of one cycle per 15 minutes, power capacity of 5.4AH is required per year.

1.12 What are the approvals (including hazardous) for SolidAT sensors?

Browse here.
2 INSTALLATION related QUESTIONS and DEFINITIONS

2.1 What is the "AUTO" indication presented by SMARTSCAN?

(A) Low echo due to dust or foam conditions. (B) Electrical noises due to improper cable and shield connections. (C) Nearby equipment operating on 50KHZ or 25 KHZ. (D) Nearby electrical interfering equipment. Solutions - Move cable and control unit away from interfering equipment, Connect ground from supply to pin number 3 on RS232 connector.

2.2 My sensor is installed via extenstion pipe but measures pipe end. Why?

Condensation on the sensor can influence the returned echo and cause incorrect measurements. The best way to overcome such an application is to install the sensor in a way that enables vapors to dissipate. Elevate the sensor above the existing flange.

2.3 I have installed MONOSCAN in a vapory environment: is it wrong?

"SPDT" refers to Single-Pole-Double-Throw, characterized by one input and two output contacts. SPDT relays have three terminals: "C" terminal is Common, "NC" terminal is a Normally Closed contact and "NO" terminal is a Normally Open contact.

2.4 Is it possible to cut the EX cable in order to place SMARTSCAN barriers?

No. Barriers should be connected to end the of the cable. The cable should not be cut.

2.5 Where is the barrier located in SMARTSCAN explosive atmosphere installation?

In SmartScan installations, the barrier is only on the sensor cable.

2.6 How can we determine the best place to install a sensor?

This type of information is provided in the user manual of each device and in the concise Installation Tips.

2.7 Is it possible to measure in a vessel containing horizontal agitator?

If the agitator is always beneath the application level, no problems are expected. If the agitator is exposed, the sensor might detect it and measure the agitator. In SmartScan sensor use the lowest tracking rate. In Gauger systems, use extended averaging.

2.8 I have several SmartScan25 and SmartScan50 systems. Can I exchange sensors?

You can exchange sensors between SmartScan25 and SmartLite systems. You can also exchange sensors between SmartScan50 systems. You cannot exchange sensors between SmartScan50 and other SmartScan models.

2.9 Is there a length limitation to the use of an extension pipe?

Use the shortest extension pipes as possible. When using long extension pipes, pipe diameter should also be increased. Consult with the user manuals.
3 CONFIGURATION related QUESTIONS and DEFINITIONS

3.1 The sensor is set to measure flow, but measurement is incorrect.Why?

(A) Flow is calculated from level measurement. Check if level is measured correctly. (B) Flow calculation is based on the configured flume/weir. Check if you configured for the correct structure and correct dimensions.

3.2 Can I exchange between RS-232 and RS-485 in SMARTSCAN systems?

No. This is preset in the factory.

3.3 Do totalization values survive power loss in SMARTSCAN50 systems?

Yes, when power is restored, totalization values will resume from the value before power down.

3.4 Are PC drivers for Gauger system compatible with Windows 8?

Yes. Gauger models require drivers enabling the connection to a PC. The drivers have been tested on Windows XP, Windows 7 and Windows 8. Windows 8 enforces a signature check of the driver which fails. The following procedure can be used to circumvent this problem: 1. Shut off all open applications; 2. Move mouse to bottom-right of the screen to display Charms; 3. Select Setting then Change PC Settings; 4. Click General; 5. Scroll down and select Advanced Startup/Restart Now; 6. Click Troubleshoot; 7. Click Advanced Options; 8. Click Startup settings; 9. Click Restart; 10. Click 7 (Verify 7 is ¡°Disable driver signature enforcement¡±); 11. After reboot - install the drivers;
4 APPLICATION related QUESTIONS and DEFINITIONS

4.1 Can the sensors measure correctly in lime applications?

Lime applications are challenging application to ultrasonic sensors and in many cases cannot measure during filling process due to high dust presence.

4.2 Is it possible to measure PVC granulates?

Static discharge produced by the PVC granulates may affect the ultrasonic signal and interfere with the measurement.

4.3 Is it possible to measure in Gravel/ Barley/Grain/Soya and similar applications?

High dust density may interefere with the measurement, especially during filling time.
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All technical documents are subject to change without notice. Where a description conflict exists between different versions of documents and languages, specifications of the English version in the User Manual should be used.
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