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Copyright 2022 by Invest Electronics Ltd All rights reserved. Reproduction in any form, in whole or in part, without the express written consent of Invest Electronics is strictly prohibited. Due to ongoing research and development, the specifications of this product may be changed at any time without notice.
General Information This manual is designed to provide users with simple and precise information. Manufacturer shall not be held responsible or liable for any misinterpretation that may result from the reading of this manual. Although every effort is made to ensure accuracy, this manual may contain unintentional technical inaccuracies. Please read the following notice carefully before installation and start-up, paying particular attention to the end - user safety instructions.
Invest Electronics Ltd had been informed of such damages. Warranty We hereby guarantee that gas detectors GDPC.A, GDPC.N, GDPC.R have been manufactured and tested to the highest quality standards. We warrant above products to be free from materials and work defects for the period of 24 months from the date of purchase.
The detector converts gas concentration into an electric measurement signal and transmits it via the cable for processing to the controller. Gas detectors GDPC.A/GDPC.N/GDPC.R are intended for detection of explosive and toxic gases. They are suitable for detection of different gases depending on gas detection element.
The electrical connection must be carried out by a specialist and (with the controller) with the power supply disconnected. Analogue gas detector GDPC.A Use shielded cable 3 x 1.5 mm2. The cross section of the cable depends on the cable length. For short distances up to 200 m it may be sufficient to use 0.75 mm2 instead of 1.5 mm2.
CONNECTION DIAGRAME GDPC.A Addressable gas detector GDPC.N The addresable gas detector GDPC.N has 2 cable glands – for input and for output cable. Gas detectors must be connected using shielded cable with twisted pair for communication A and B terminals and another pair for the power supply of gas detectors.
Gas detector with relay outputs GDPC.R Gas detector with relay outputs GDPC.R,. has 2 cable glands – for input and for relay connections cable. The power supply must be 15-30VDC. Relay contacts are potential free and are rated 250V-2A. CONNECTION DIAGRAME GDPC.R Operating instructions The gas detector GS-220.BC.V/GS-ADR.BC.V has the following operation modes: 1.Initial stabilisation...
Detector calibration Gas detectors must to be calibrated and periodically checked to ensure detector accuracy and system integrity. It is important to install stationary gas detectors at locations where the calibration can be performed easily. The intervals between calibration can be different from sensor to sensor. However, it is good general practice to check the detector during the first 30 days after installation.
Servicing frequency Invest Electronics recommends regular testing of fixed gas detection installations. The type of test consists of injecting a standard gas mixture of sufficient concentration into the detector to set off the preadjusted alarms. This test does not, replace a full calibration of the detector. Frequency of gas testing depends on the industrial application in which the detectors are used.
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