Installation, operation & service manual AlarmScout 961/962 loop
Contents
1. WITH CONDUITS Caution Observe all applicable electrical codes and proper wiring procedures 1 Make sure the power source is turned off 2 Unscrew and remove housing cover 3 Pull power supply and relay wires through the conduit connection 4 Connect power leads to proper terminals for AC power 102 to 265 V AC or for DC power 18 32 V DC a AC Power Connect hot wire to terminal marked L1 and the neutral wire to the terminal marked L2 The green head screw should be used for grounding b DC Power Connect wires to terminals and on the terminal block The green head screw should be used for grounding 5 Connect desired relay wiring if applicable 6 Prevent moisture seepage into housing by installing an approved seal drain fitting in the conduit run leading to the unit 7 Wiring is complete Replace housing cover Caution In hazardous areas do not power the unit until the conduit is sealed and enclosure cover is screwed down securely Part No 4417902_Rev 0 Instruction amp installation manual AlarmScout 961 962 loop powered 3 Honeywell Enraf USER INTERFACE Model 961 single gap Model 962 dual gap Figure 7 Figure 8 MODEL 961 Levies MODEL 962 Time delay potentio potentio F meter TIME meter A DELAY FAULT LOOP L FAULT LOOP O TEST TEST TEST TEST 8 16 T L J 8 12 16 Hi 22 Hi 22 He F PIX Testing Te2. 828 Email enraf sg honeywell com Honeywell 4417902_Rev 0 APRIL 2012 2011 Honeywell International Inc Enraf
3. AlarmScout 961 962 Enraf loop powered A Mi Sy jl N Ey AN Installation operation amp service manual AlarmScout 961 962 loop powered UNPACKING Unpack the instrument carefully Make sure all components have been removed from the foam protection Inspect all components for damage Report any concealed damage to the carrier within 24 hours Check the contents of the car ton crates against the packing slip and report any discrep ancies to Honeywell Enraf Check the nameplate model number to be sure it agrees with the packing slip and pur Sat canbe chase order Check and record the serial number for future serial n reference when ordering parts These units are in compliance with 1 The EMC directive 2004 108 EC The units have been tested to 0038 EN 61326 1997 A1 A2 0344 2 Directive 94 9 EC for equipment or protective system intended for use in potentially explosive atmospheres EC type examination certificate number ISSePO6ATEX011X intrinsically safe and ISSePO6ATEX008 flameproof enclosure 3 The PED Directive 97 23 EC pressure equipment directive Safety accessories per category IV module H1 Figure 1 SPECIAL CONDITIONS FOR ATEX INTRINSICALLY SAFE USE Materials marked as Category 1 equipment and used in hazardous areas requiring this category shall be installed in such a way that even in the event of rare incidents the aluminium enclosure cannot be an ignition sour
4. F model 962 6 Instruction amp installation manual AlarmScout 961 962 loop powered Action Indication No LED s are ON Gap may be plugged by solids dense foam Gap is out of reach of liquid Excessive aeration Turbulence A system fault has been detected Press Loop Test pushbutton to identify the problem 24 flash red LED 2 flashes red LED wm 2 3 flashes red LED Solution Check wiring input power Check for malfunction model 962 See below Clean the transducer Check mounting section on page 2 and relocate the unit or check blocking valves Increase time delay Check input power Relocate the AlarmScout Check input power Check wiring between transducer and electronics or replace transducer Replace electronics The unit senses excessive noise interference Check shield connection or eliminate interference from a walkie talkie radio or other EMC source Part No 4417902_Rev 0 Honeywell Enraf SPARE PARTS Replacing electronics transducer Saas The electronics can be exchanged in the field under process conditions Follow below steps to exchange electronics transducer Note Adjust set up of the replacing electronics following the settings of the old electronics see configuration section Check with customer and verify applicable site permits prior to start activities Disconnect power before removing the housing cover Remove power output wires
5. a Click out the protection cap of the electronics b Remove the 2 bracket screws and slide out electronics c Remove the transducer wires see Wiring section d Re assemble following the same procedure in opposite way Make sure that the tip on the bracket of the electronic block is seated properly in the corresponding recess in the housing base e DRN Spare parts ne LTT HIITHTIT Digit in partn s e 7 e See nameplate always provide complete partn and serial n when ordering spares 1 Housing cover consult factory 2 O ring 012 2201 237 4 Transducer consult factory 3 Electronic module Digita Digits Digit10 Sparepart Aor C 089 7259 005 C 5 1 089 7259 003 all 089 7258 003 N Figure 9 Part No 4417902_Rev 0 Instruction amp installation manual AlarmScout 961 962 loop powered 7 Honeywell Enraf For More Information To learn more about Honeywell Enraf s solutions contact your Honeywell Enraf account manager or visit www honeywellenraf com Americas Honeywell Enraf Americas Inc 2000 Northfield Ct Roswell GA 30076 USA Phone 1 770 475 1900 Email enraf us honeywell com Europe Middle East and Africa Honeywell Enraf Delftechpark 39 2628 XJ Delft The Netherlands Phone 31 0 15 2701 100 Email enraf nl honeywell com Asia Pacific Honeywell Pte Ltd 17 Changi Business Park Central 1 Singapore 486073 Phone 65 6355 2
6. ce due to impact or friction MOUNTING Filling line Pump control High alarm High high alarm High alarm Auto fill or empty pump control Pump protection Low alarm Welded flange S Pump Figure 4 Figure 2 Warning Bring the instrument on the same potential as the tank potential prior to the installation 2 Instruction amp installation manual AlarmScout 961 962 loop powered Part No 4417902_Rev 0 Honeywell Enraf WIRING WITH CABLES Model 961 single gap Model 962 dual gap twisted pair cable ILS wirin recommended but not needed odai g when wired as per NAMUR NE 21 SEAE E E EE for field strengths up to 10 V m Figure 5 Figure 6 External grounding screw MODELSET only for ATEX flameproof WOU E gme a Me Tes Test tC Tes Test Q 8 16 C 8 2 6 dA 660 2 Te ae 606 2 Plugged entry a La HAZARDOUS AREA Shield to green grounding screw Ground moe Shield 000 not connected 1 f 1 N oe f Standard shielded 1 SAFE AREA I Important Connect the unit to the ground for avoiding earth potential drifts The shield wire should only be grounded at ONE side only It is recommended to connect the shield to ground in the field at the level switch side but connecting in the control room is also allowed WIRING
7. e green LED yellow LED red LED 8 mA 1 mA ON OFF OFF Hi 1 High Level OFF ON OFF Failsafe A f 16 mA 1 mA OFF OFF ON iL i 8 mA 1 mA ON OFF OFF Lo 0 Low Level OFF ON OFF Failsafe 16 mA 1 mA OFF OFF ON Model 962 fault conditions i i 8 mA 12 mA 16 mA Failsafe mode Output signal green LED yellow LED red LED Hi High Level Failsafe 2 22 mA OFF OFF OFF Lo lt 3 6 mA OFF OFF OFF Low Level Failsafe Part No 4417902_Rev 0 Honeywell Enraf Instruction amp installation manual AlarmScout 961 962 loop powered MAINTENANCE Manual Testing T Loop Test 8 mA 12mA 16mA Pressing the Loop Test pushbutton will manually test the loop and connected actuators indicators The loop test forces the output and corresponding LED s to shift from 8 mA to 12 mA only 962 to 16 mA back to 8 mA The time delay setting is not active during testing Fault Test 3 6 mA 22 mA Pressing the Fault Test pushbutton for a minimum of 2 seconds will manually test the fault output and connected actua tors indicators The fault test simulates a circuit failure and forces the output to either lt 3 6 mA or 22 mA The time delay set ting is not active during testing Troubleshooting PE TTM Problem No loop signal No change in output between wet gap dry gap Chattering output Fault LED is ON model 961 All LED s OF
8. sting Safe Alarm Separate Testing Testing Safe Lower Upper fault loop green yellow fault red LED fault loop green gap gap signal signal LED LED signal signal LED yellow red 8 mA 16 mA 8 mA LED LED 12 mA 16 mA SET UP AND FUNCTIONS Set up R Fault selection Select for which signal the unit should report a malfunction gt 22 mA or lt 3 6 mA Time delay setting Turning the potentiometer clockwise will increase the time delay from 0 5 s to 45 s Time delay is typically used where turbu lence boiling or splashing can cause false level alarms Setting delay to a longer value will increase time to actuate Model 961 high low level fail safe selection E EEEE Eo Failsafe Output 8 mA 16 mA Fault mode signal green LED yellow LED red LED p 8 mA 1 mA ON OFF OFF MI gt High Level Failsafe 16 mA 1 mA 8 mA 1 mA Lo Low Level Failsafe 16 mA 1 mA Model 961 fault conditions F F Fault Failsafe mode Output signal red LED eae gt 22 mA ON High Level Failsafe Lo Low Level Failsafe acne on 4 Instruction amp installation manual AlarmScout 961 962 loop powered Part No 4417902_Rev 0 Honeywell Enraf SET UP AND FUNCTIONS Model 962 high low level fail safe selection E EEHoOo xXoH Failsafe 8 mA 12 mA 16 mA mod
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