HB Products HBSC2 Configuration guide

Instruction manual Ex/ATEX products-02 July 2021 1 / 6
Instruction manual supplement
Ex/ATEX products
Covers HBSO, HBSR, HBSC2, HBLC, HBLT, HBLS and HBX
Introduction
The sensors and switches designed for hazardous areas all use a two-wire connection. This means
the output will be 4-20 mA and the output will normally pass through a barrier before it is
connected to a PLC. For level sensors normally providing an analog output will still be a 4-20 mA
signal linear to the measurement. For level switches the output will be 4 mA representing off and
20 mA representing on.
The sensors and switches can be setup like normal products but when in operation only pin 1 and
4 will be in operation.
Calibration can be done using the HB-tool like normal sensors or the “R” button can be used inside
the hazardous zone where you cannot bring a PC.

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Safety instruction
•Danger of explosion caused by electrostatic charge!
If there is a sudden discharge from electrostatically charged devices or persons, there is a
danger of explosion in the Ex-area.
oTake appropriate measures to prevent electrostatic charges in the Ex-area.
oClean the device surface by gently wiping it with a damp or antistatic cloth.
•Only personnel with appropriate training should operate machinery and equipment. The
product specified here may become unsafe if handled incorrectly.
The assembly, operation and maintenance of machines or equipment including our
products must be performed by an operator who is appropriately trained and experienced
for handling Ex products.
•Configuration by PC tool
Only make configuration on the sensor when safety has been confirmed.
•Do not service or attempt to remove product and machinery/equipment until safety is
confirmed.
1. The inspection and maintenance of machinery/equipment should only be
performed after safety has been confirmed.
2. When the product is to be removed, confirm that the safety measures as
mentioned above are implemented and the power from any appropriate source
is cut, and read and understand the specific product precautions of all relevant
products carefully.
3. Before machinery/equipment is restarted, take measures to prevent unexpected
operation and malfunction.
•Take precautions to prevent inadvertent operation or damage by unauthorized action.
•Make no changes in the device!
Specific Conditions for Use
1. By end-installation all metallic part must be included in the local potential equalization.
2. The devices must be installed and used in such a way that electrostatic charging from
operation, maintenance or cleaning is excluded.
3. The sensor may be operated in hazardous areas in which equipment of EPL Ga is required
only if atmospheric pressure exists (0.8 bar to 1.1 bar).
4. A reverse heat flow from the process exceeding the permissible ambient temperature of
the electronic part is not allowed and shall be avoided by a suitable thermal insulation or a
suitable temperature decoupler.
5. The ambient temperature range depending on temperature class is to be taken from the
operating instructions.

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Technical data
Supply voltage and load:
12-28V DC
2 Wire sensors
Current draw:
Max 20 mA
Signal output:
4-20 mA
Measuring range:
The measuring range is depended on the
mechanical part.
Device category:
The device category is: 2G for gas zone 1 or
1G for gas Zone 0
Type of protection:
The type of protection is: ia
Gas resp. gas group:
The gas group is: IIC
Temperature class:
The temperature class is: T1..T6
IP-class:
The IP class is: IP66
Ambient temperature range:
Marking
Ambient
temperature range
on the electronic
part HBCS-EX01
Temperature on
PT1000 (measuring
cable, rod)
Ex ia IIC T6 Ga
-40 °C…+50 °C
-60 °C…+70 °C
Ex ia IIC T5 Ga
-40 °C…+65 °C
-60 °C…+85 °C
Ex ia IIC T4…T1
Ga
-40 °C…+70 °C
-60 °C…+90 °C
Marking
Ambient
temperature range
at the electronic
part HBCS-EX01
Temperature on
mechanical parts
Ex ia IIC T6 Ga
-40 °C…+50 °C
-60 °C…+80 °C
Ex ia IIC T5 Ga
-40 °C…+65 °C
-60 °C…+90 °C
Ex ia IIC T4…T1
Ga
-40 °C…+70 °C
-60 °C…+90 °C
Pressure:
Max 120 bar
Intrinsically safe ratings
Intrinsically safe ratings of the sensor is:
•Maximum voltage (Ui) = 28V
•Maximum Current (li) = 116mA
•Maximum Power (Pi) = 585mW
•Internal Capacitance (Ci) = 20nF
•Internal Inductance (Li) = 150uH

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Approvals
IECEx and ATEX
IEC 60079-0:2017
IEC 60079-11:2011
EMC Test
EMC Emission EN61000-3-2
EMC Immunity EN61000-4-2
Vibration resistance:
IEC 68-2-6, 10g, 10 to 2000Hz
Environmental test, incl.
Damp heat cyclic, Low storage temperature, Sinus vibration, Shock test, Dry heat test, and Cooling
test.
Electrical connection and output
The electrical connection is normally done using a barrier for additional safety. The sensor is
connected two wires only as shown here.
Output
HBSR, HBSC2 & HBSO: approx. 4 mA for off and approx. 20 mA for on
HBLC, HBLT, HBLS: 4 to 20 mA linear to the level from Zero to 100%
HBX: 4 to 20 mA linear to vapor quality from dry to end of Span

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LED indication
The green LED is flashing and indicates 24 V DC supply. (normal operation mode)
The yellow LED (Control) is used for calibrating using the “R” button.
The red LED (Alarm) is not used.
The red and green LEDs flashing indicate no connection between mechanical and electrical unit.
All three LEDs are flashing when the sensor is connected to the HB tool.
Calibration instructions:
The sensors can be calibrated by using the HB tool or by using the “R” button. The 0% or 100%
calibration can be carried out independently of each other. The sensor is delivered pre-calibrated.
For normal use, calibration is not necessary. If the signal changes over time, we recommend a 0%
calibration.
Instruction for 0% calibration/dry calibration:
1) Make sure the sensor is dry and power supply is connected.
2) Press the "R" for approx. 20 seconds until the yellow LED turns off.
3) Activate "R" once = Yellow LED flash once.
"Calibration mode" is complete and the sensor is then running normally.
Instruction for 100% calibration - for level sensor only:
1) Make sure the sensor is filled with liquid and power supply is connected.
2) Press the "R" for approx. 20 seconds until the yellow LED turns off.
3) Activate "R" twice = Yellow LED flash twice.
"Calibration mode" is complete and the sensor is then running normally.
Calibration using the HB Configuration Tool
Please follow the instructions in the manual for the standard product. The sensor setup will be
simpler with less parameters, but the principle will be the same.
Installation
The sensor is installed like the similar products without ATEX/Ex certification.
NOTE! To be able to change the sensor parameters, you need a
special USB/M12 configuration cable, as well as a configuration tool
installed on a PC, also see safety instruction before using the PC tool.

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Labeling of the electronic unit
The Electronic unit has a label with a lot of information - here is a guide to the meaning.