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PRS-UM-BTN-EN-Rev02-02.2019

to Span button till the level reaches the necessarly value. Once the span calibration
completed remove the jumper and put as a spare on to detector board.
Important: Never put jumper on both S+ and S- pins and press any button.

Diagram 11: Calibration buttons and pins

General Specification

BTN Series Detector Electrical Specifications:

Input Voltage Range

12 to 20VDC (16VDC nominal)

Max Power Consumption 0.96 Watts at 16VDC - normal condition

1.60 Watts at 16VDC - alarm and fault condition

Terminals

4 x 2 x screw terminals suitable for wire diameter 1.5mm2 to 2.5mm2

Relays

3 x (1A 30VDC, 0.5A 125VAC, 0.3A 80VDC).

Non-selectable: normally open and de-energized

Communication

RS485, Modbus RTU

Sensor

Catalytic

Table 2: BTN Series detectors electrical specifications

Detector Body Specifications:

Material

Plastic (black)

Weight

Plastic buat: 230g (with Sensor Header)

Mounting

Wall mounting

Entries

PG11

Table 3: Detector body specifications

Environmental:

IP Rating

IP54 (plastic buat)

Operating Temperature

-10ºC to +50ºC / 14ºF to +120ºF

Operating Humidity

Continuous 20-90%RH (non condensing)

Operating Pressure

90-110kPa

Storage Conditions

-10°C to +50°C (14°F to +120°F)

Table 4: Environmental specifications

Span (S) and Zero (Z) buttons

Span (S+ , S-) and Zero (Z) pins

Содержание BTN Series

Страница 1: ...1 PRS UM BTN EN Rev02 02 2019 PROSENSE BTN Series Gas Detectors Installation and User Manual ...

Страница 2: ...nd persons who rely on this product for their safety could suffer severe personal injury or death The warranties made by Prosense with respect to this product are voided if the product is not installed used and serviced in accordance with the instructions in this user guide Please protect yourself and other by following them Important Remark The detector has been factory tested before delivery the...

Страница 3: ...on Hazards 4 Liability For Proper Function or Damage 4 Intended Use 4 Introduction 6 Detector Body 6 Sensor Head 7 Installation 7 Mounting The Detector 8 Cabling and Connections 9 BTN Series Detectors Connections 10 BTN Series Detectors Connections with RS485 Module 12 System Status 13 General Specification 15 Warranty Statement 16 ...

Страница 4: ...or operator to the extent that the detector is serviced or repaired by personnel not employed or authorized by Prosense or if the sensing head is used in a manner not conforming to its intended use Prosense cannot be held responsible for damage caused by non compliance with the recommendations given above The warranty and liability provisions of the terms of sale and delivery of Prosense are likew...

Страница 5: ... The measuring principle of heat of reaction needs a minimum oxygen concentration of 12 by vol otherwise the measuring values will be too low because of oxygen deficiency 3 Long term Gassing With Methane At Very Low Temperatures If the Prosense BTN series detectors are operated applying with methane at very low temperatures the measuring signal at longterm exposition may decrease after alarm activ...

Страница 6: ...sirens valves or switches The detector can be configured to communicate RS485 modbus protocal with an optional module and also provides FAULT and ALARM1 relay outputs at same time Detector Body Prosense BTN series detectors comprises of the main parts as shown below Diagram 1 Exploded view The detector enclosure has four threaded entries The three cable entries either side of the upper part of the...

Страница 7: ...e due to natural or forced air currents Note The placement of gas detectors should be determined following the advice of experts having specialist knowledge of gas dispersion experts having knowledge of the process plant system and equipment involved safety and engineering personnel The agreement reached on the location of detectors should be recorded Each gas has different nature depending on the...

Страница 8: ...ibility for calibration work should be in air flow between possible leak or collection point and possible source of ignition Prosense do not recommend to install detectors to directly above a cooking unit directly above a sink unit close to an extractor unit outdoor without protection against the rain in places where temperature is outside the admissible operating range in corrosive environments i...

Страница 9: ... 16VDC power to detector If detector has RS485 communication module additional two wire cable should be used to connect A and B to read the output signal of detector from A and B ports Connections should be made correctly with extra care to do not mix ports and not cause any damage on the detectors Detector power connection should be done with 1 5mm2 cross section cable The total distance between ...

Страница 10: ...ermination resistor 120 Ohm to enable communication for all detectors on the line The resistor is not implemented on the board and user should connect it physically during the installation BTN Series Detectors Connections BTN Series detectors has a power input and three relay output sockets on main board Diagram 6 BTN Series detector main board Sensor connections are not used for external connecti...

Страница 11: ...ent switches Alarm levels and related switch positions are given in table 3 Switch 6 Switch 7 Alarm1 Alarm2 OFF OFF 10 15 OFF ON 10 20 ON OFF 30 40 ON ON 40 60 Table 1 BTN Series detector alarm levels Oxygen Detectors For oxygen detectors the output values and meanings are different as oxygen is naturally available in atmosphere Alarm 1 is used to raise low level alarm and Alarm2 is used to raise ...

Страница 12: ...the installation between RS485A and RS485B ports BTN series detector main board has a dip switch to assign address to the detector Each detector must have unique address to communicate to DP32 Panel Detectors having same address would not be recognised by the panel The address should be set via using first 5 switches on the dip switch Diagram 9 BTN Series detector address switches Detectors will b...

Страница 13: ...inue blinking This status means that detector is ready to normal operation First time switch on Commissioning WARNING The following procedure requires the detector cover to be removed while carrying out supply voltage checks Therefore the appropriate permits to work should be sought in preparation Prior to carrying out any HOT WORK ensure local and site procedures are followed Ensure that the asso...

Страница 14: ...ired accuracy can be attained To calibrate the detector use an appropriate span gas cylinder constant flow regulator and Prosense Gas Cap The flow rate used for calibration gas is 0 5 L Min Important Any optional board is installed on detector should be removed prior the calibration as some of the features masked or unavailable with them when installed Zero Calibration It is recommended to use a c...

Страница 15: ...x screw terminals suitable for wire diameter 1 5mm2 to 2 5mm2 Relays 3 x 1A 30VDC 0 5A 125VAC 0 3A 80VDC Non selectable normally open and de energized Communication RS485 Modbus RTU Sensor Catalytic Table 2 BTN Series detectors electrical specifications Detector Body Specifications Material Plastic black Weight Plastic buat 230g with Sensor Header Mounting Wall mounting Entries PG11 Table 3 Detect...

Страница 16: ... fault is not found with he the equipment Prosense Technology shall not be liable for any loss or damage whatsoever or howsoever occasioned which may be a direct or indirect result of the use or operation of the Contract Goods by the Buyer or any Party This warranty covers instrument and parts sold to the Buyer only by authorized distributors dealers and representatives as appointed by Prosense Te...

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