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INSTRUCTION
MANUAL
Gas Detection Transmi�er
DEGANSII
Reproduc�on of this manual, or any part thereof, in any form, without the prior permission of DEGA.CZ s.r.o. is prohibited
DEGA CZ s.r.o. reserves the right to alter the specifica�ons of the hardware and software described in this manual at any time and
without prior no�ce
DEGA CZ s.r.o. bears no liability for any damage resul�ng from use of this device
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Summary of Contents for DEGA NS II
- Page 1 Reproduc�on of this manual, or any part thereof, in any form, without the prior permission of DEGA.CZ s.r.o. is prohibited DEGA CZ s.r.o. reserves the right to alter the specifica�ons of the hardware and software described in this manual at any time and without prior no�ce...
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Page 2: Table Of Contents
Replacement of the sensor module ............................7 Replacement of the ba�ery ..............................7 Connec�ng the transmitter via current loop to the controller DEGA UPA II/UPA III ............7 Connec�ng the sensor via RS485 to the controller DEGA UKA III/DEGA UPA III ..............7 Installa�on of wiring for RS485 and power supply ....................... -
Page 3: Technical Data And Informa�On
Usethe transmi�er only with the appropriate cer�fied DEGAproducts The device is cer�fied as func�onally and technically qualified only with original "DEGA" accessories. In case of using the device with any other products, the manufacturer is not liable for any damages that may occur. -
Page 4: Operational And Storage Condi�Ons
80-120 kPa Flow of ambient air: max. 2 m/s - flow directly to the sensor in not allowed Protec�on level with a cover: IP 54, with a DEGA WATER CAP IP 66 cover Loca�on: BE3N2 - explosive atmospheres - zone 2... -
Page 5: Terminology
Series of detectors in poten�ally explosive atmospheres Type of detected gas Sensor type with linear output Second generation product with new DEGA design DEGANSx-ELII with anelectrochemical sensor They operate on the principle of change of electrical parameters on the electrodes stored in electrolyte, due to oxidation/reduc�on reactions of the detected gas on it's surface. -
Page 6: Assembly And Disassembly Of The Transmitter
Jumper connector of Jumper connector of the Terminal block Terminal block RS485 B the terminal resistor communica�on protocol RS485 A RS485 (DEGA/MODBUS) DIP switch for the RS485 Programming Ba�ery CR2032 LCD display connector address connector Status LED Assembly and disassembly of the transmi�er Before assembling, read the valid installation standards EN 60079-29-2 (Selection, installa�on, use and maintenance of... -
Page 7: Replacementofthe Sensormodule
Connectingthe transmitter via current loopto the controller DEGAUPAII/UPA III Connect one transmitter to each channel of the controller as shown in the picture below. Connectingthe sensorvia RS485to the controller DEGAUKAIII/DEGA UPAIII Installation of wiring for RS485and power supply Wiring must be installed using bus topology and in compliance with the RS485 policy. -
Page 8: Set�Ng The Rs485 Address Of The Transmitter
120R. Plug a jumper on the JP2 connector of the last device on the bus to include the 120R termina�ng resistor. In the default configura�on, the jumper connector is not plugged. Communicationprotocol switchDEGA/MODBUS Plugging a jumper in the JP1 connector will switch from the DEGA communica�on protocol to the MODBUS communication protocol. Transmitter functions The detector's motherboard is equipped by status LEDs, which help in detec�ng problems during the installa�on. -
Page 9: Operation, Maintenance, Inspectionand Serviceof The Transmitter
Operation, maintenance, inspectionand serviceof the transmitter 1. Usagelimits To maintain proper operation of the transmitter, it is necessary to respect the fact that step changes of humidity, condensation or rapid changes of pressure can cause incorrect indication of the measured value. Each sensing technology is suited for different methods of applica�on, as described below. -
Page 10: Accessories
Accessories 1. Calibration adapter/connection to the gaspumpDEGAGASINLET 2. Coveragainst splashingwater DEGAWATERCAP 3. Funnel for gascollection DEGACOLLECTCAP 4. Additional Ex„e“ cable gland DEGACABLEGLANDforNSII M20x1,5... -
Page 11: Gas Specifica�Ons
Gasspecifications... -
Page 12: Add-Onmodules
%DMV – lev el of lower explosion limit concentra�o n in % %obj – volume sample of gas – lower explosive limit of methane (4.4 % by volume) 4. Package content 1 x NS II body 1 x NS II sensor unit... -
Page 13: General Warranty Terms And Conditions
• contrary to the advice provided in the instruc�on manual DEGA products that have been used in associa�on with other than original DEGA products, including consumables and • accessories calibra�on of sensors ,i.e.se�ng detec�on limits...
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