Related Manuals for Dräger REGARD 4208797
Summary of Contents for Dräger REGARD 4208797
- Page 1 REGARD 3900 4-20mA output module Installation, operation and maintenance Issue 1 – November 2006...
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Page 2: For Your Safety
FOR YOUR SAFETY Follow the instructions Read this manual before installing the module. Maintenance The equipment must be inspected and serviced regularly by trained personnel. Keep a record of inspections and servicing. Repairs of this equipment should only be carried out by competent personnel. We recommend that either a training course or service contract is obtained from Draeger and that all repairs are carried out by them. -
Page 3: Intended Use
INTENDED USE • For remote indication or recording of gas levels. • Not for control of counter-measures against risk of explosion. The 4-20mA output module is not included in the scope of the Regard 3900 ATEX EC-type examination. The module must be mounted within the Regard 3900 control unit enclosure. Up to four modules can be installed if there is space in the enclosure. - Page 4 Zero clamp Because the system’s gas level reading is clamped to zero when the gas level is within 2% of zero, the output of the 4-20mA will also will also jump between 4.0 to 4.3 mA when the gas level varies around zero. Example for input channel with measuring range 0 –...
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Page 5: Installation And Configuration
INSTALLATION & CONFIGURATION 1. Fit the output module in an unused position, or on top of any existing modules, in the 3900 enclosure using the spacers and fittings provided. 2. Connect the Regard 3900 ribbon cable to the module(s). 3. Set the Channels link on the module. Link on position 1-8: + –... -
Page 6: Maintenance
Two or more modules can be set to the same channels (1-8 or 9-16) 4. Connect the signal outputs. Unused outputs can be left unconnected. MAINTENANCE Check the module for correct operation at regular intervals. Fault finding Fault Cause Remedy No signal from all No DC supply to Connect system ribbon cable to module... -
Page 7: Specifications
SPECIFICATIONS Output range 0.1 – 21.7 mA Isolation 50 V Cable cross-section 0.5 to 2.5 mm Resolution 0.1mA Accuracy ± 1% Maximum load 500 ohms Operating temperature range 0 to 55 C Storage temperature range -25 to +70 C DC input voltage 18 to 30V DC Power / current consumption Approx. - Page 8 Draeger Safety UK Ltd Riverside Business Park Blyth, Northumberland NE24 4RG United Kingdom +44 1670 352891 +44 1670 356266 Manual part number 4208839 Issue 1 – November 2006...