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Technical manual
SRA – 100 8M
Filling level limit switch
for conductive filling level supervision
in electrical conductive liquids
Useable
for filling level resp. limit value detection in liquid container
as dry run protection for pumps
for two-position-control in plants
ATEX II (1) G [Ex ia Ga] IIB/IIC resp. ATEX II (1) D [Ex ia Da] IIIB/IIIC
Certification for the connection of conductive level transducer in explosion
hazardous areas
Measuring range adjustable up to 8M resp. 0,125µS/cm
Different configurable switching delays
Wide range power supply from 20 to 253V AC and DC
L a u t e r b a c h s t r . 5 7 – 8 4 3 0 7 E g g e n f e l d e n – G e r m a n y
T e l : + 4 9 8 7 2 1 / 9 6 6 8 - 0 – F a x : + 4 9 8 7 2 1 / 9 6 6 8 - 3 0
i n f o @ a c s - c o n t r o l s y s t e m . d e
BA 0113
–
w w w . a c s - c o n t r o l s y s t e m . d e
Filling level
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Table of Contents
Related Manuals for Belimo SRA-100
Summary of Contents for Belimo SRA-100
- Page 1 Technical manual BA 0113 Filling level SRA – 100 8M Filling level limit switch for conductive filling level supervision in electrical conductive liquids Useable for filling level resp. limit value detection in liquid container as dry run protection for pumps ...
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Page 2: Table Of Contents
SRA – 100 8M Index Order code ........................2 Application ........................3 Function ........................3 / 4 Safety notes ........................5 Safety notes ......................5 Installation ........................5 Maintenance ........................5 Repair ..........................5 Electrical connection ....................6 Operation and display elements .................. -
Page 3: Application
SRA – 100 8M Application The filling level limit switch SRA – 100 8M is used, to evaluate one or two filling levels resp. limit levels in electrically conductive liquids with a conductivity of minimum 0,125µS/cm resp. a resistance of maximum 8M. For the connection of level resp. - Page 4 SRA – 100 8M Safety function The safety function defines the operation principle of the output relays Maximum safety: The relay switches off, if the switching level is transgressed (liquid connection between measuring and reference electrode), or the power supply fails. Minimum safety: The relay switches off, if the switching level is underrun ...
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Page 5: Safety Notes
SRA – 100 8M Safety notes Each person that is engaged with inauguration and operation of this device, must have read and understood this technical manual and especially the safety notes. Installation, electrical connection, inauguration and operation of the device must be made by a qualified employee according to the informations in this technical manual and the relevant standards and rules. -
Page 6: Electrical Connection
SRA – 100 8M Electrical connection The electrical connection of the device must be carried out according to the respective country specific standards. Incorrect installation or adjustment could cause applicationally conditioned risks. Power supply input, measuring input and relay output channels are safe galvanically isolated from each other. This is also valid for both relay output channels among each other. -
Page 7: Operation And Display Elements
SRA – 100 8M Operation and display elements Adjustment trimmer for fine adjust of the response sensitivity within the configured Function indicator sensitivity range Fail 3 LED’s for indication of operating states Configuration switches 12 DIL switches, for setting the desired functionality Function indicator ... -
Page 8: Technical Data
SRA – 100 8M Technical data Auxiliary power supply Permitted supply voltage: Basic variant 20 V to 253 V AC / DC 48...62 Hz, ATEX variant 20 V to 253 V AC 48...62 Hz resp. 20...125V DC reverse polarity protected Power consumption: ...
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