Instruction/ maintenance manual of the product AD-ST1400-25 Net Safety
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MILLENNIUM Oxygen Gas Detector User Manual Models: MLP-A/AR/AD-ST1400-25 & (all available options) Part Number: MAN-0060 Rev 04 August 2008.
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Net Safety Monitoring Inc I MPORTANT I NFORMATION This manual is for inf ormationa l purposes only . Although e very ef fort has been made to ens ure the corr ectness of the infor mation, tec hnical i naccuracies may occur and peri odic change s may be made withou t notice.
Net Safety Monitoring Inc T ABLE OF C ONTENTS Impor tant In forma tion Warranty Contact Information Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 The Product ....................... ..........
Net Safety Monitoring Inc Outputs ............ ........................... ........................... ........................... .............. 18 Relays - Optional ........................ ................. ................. ................. .....
Net Safety Monitoring Inc. MLP-A/AR/AD-ST1400-25 1 I NTR ODUCTION The Millennium ser ies is Net Safe ty's late st innovation i n a line of continuous ly evolving indus trial gas det ectors and sensor s. The microcontr oller based syst em provides f ast, accurat e and continuo us monitoring o f gases in ex treme environments .
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 2 STEP 1 — P LAN L OCATE C ONTROLLER /S ENSOR Prior to t he installa tion proces s, a locat ion plan for placing the Contr oller and Sensor should be develo ped.
Net Safety Monitoring Inc. MLP-A/AR/AD-ST1400-25 3 Figure 2: Dimens ional Drawings STEP 2 — I NSTALL U NPACK Carefully remove all components from t he packaging. Ch eck component s against th e enclosed packi ng list and inspect all co mponents for obvious damage such as broken or loose pa rts.
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 4 Mount The Controller is usu ally mounted near eye- level and be easily acce ssible for calibrat ion and mainten ance purpos es. The Sensor s hould be plac ed where O2 may build up or where other gase s are likel y to build up a nd displa ce O2.
Net Safety Monitoring Inc. MLP-A/AR/AD-ST1400-25 5 Board Assembly There are t hree dif ferent fi xed boards, two optional relay boa rds and an o ptional Modbus b oard which make up the PCB Assembly . Depending upon requir e ments, either a El ectromechani cal or Solid State Relay Boar d module can be used.
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 6 Figure 5: Wiring—Controller a nd Sensor Note: If the 4-20 mA signal is not used, connect a jumper between the 4-20 termin al and the COM t erminal on th e T ermi nal Boar d. S ENSOR AND C ONTROLLER WA R N I N G : Power to the unit must be OFF before wiring.
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 7 S ENSOR S EPARATION Figure 6: Wi r i n g — Sensor Separation As the Sensor must be located in one location and the Con troller in a location where it ca n be easily reached, it is often necessary t o “separa te” the Contr oller and Sensor .
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 8 N ON -I SOLATED /I SOLATED W IR ING T ermin al Connect ion Figure 7: Non-isolated T erminal Connection Figure 8: Isolated T erminal Connection Current.
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 9 R EMOTE R ESET The Millenni um can be set fo r remote rese t. A normall y open Push Button Switch must be connected between the RST and the COM terminals on the T erminal Board a nd the Relay Opt ion Latch S tatus mus t be set to Latc hing .
Net Safety Monitoring Inc. MLP-A/AR/AD-ST1400-25 10 STEP 4 — O PERATE The Controller fa ceplate contai ns most functional eleme nts of the user interfa ce.
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 11 RTU R eg i s t e r s Register 40001 = % output (read only) Register 40002 = R TU Status (read only) Register 40 101 = Reset lat ched relays (wr ite) .
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 12 Magnetic Reed Switch The Magnetic Re ed Switch is pr ovided to avoid opening the Housi ng in an environme nt where gas may be pre sent. The Mag netic Reed Switc h functions in the same manner as the Calibrat ion Button but in a non-intr usive manner .
Net Safety Monitoring Inc. MLP-A/AR/AD-ST1400-25 13 STEP 5 — C ALIBRATE C ALIBRATION P ROCEDURE W ARNING: The calibrati on procedure req uires about 5 minut es to complete. If gas is not applied at the appropriat e time, a calib ration f ailure may occur ( refer to "Calibratio n Failure" on page 14 for specific inf ormation).
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 14 Calibrat ion Failur e If the cal ibration pr ocedure fai ls, the di splay shows Fai l Cal , the Status LED alternat es Red and Gre en flashes a nd the anal og output changes back and fo rth from 3.0 to 3.
Net Safety Monitoring Inc. MLP-A/AR/AD-ST1400-25 15 R ELAY O PTIONS Use to set t he alarm leve l, coil stat us and latch status for the Low an d High relays ( Fault A larm is fi xed). The followin g table describes the def ault settings fo r the sensor .
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 16 M ODBUS O PTIONS The digital RS-485 Modbus R TU protocol is use d. There are two Modbus options: Nod e Address and Bau d Rate. Node Address Each device c onnected to t he chain must b e assigned a u nique node a ddress (1- 255).
Net Safety Monitoring Inc. MLP-A/AR/AD-ST1400-25 17 S ELECT D ISPLAY L ANGUAGE St e p 1 : After t he Restrict ed Menu the opti on Select Di splay L anguage YES? display s. Press the Cali bration Butt on or use the Re ed Switch to select. The flashi ng YES confirms the s election.
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 18 O UTPUT S Relays - Optional Note: The faul t relay outp ut is not used to activate an automatic shutdo wn procedure. Th e fault outp ut indica tes a potent ial problem with the Controller not an alarm condi tion.
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 19 H OW TO R ETURN E QUIPMENT A Material Retur n Authorizati on number is r equired in or der to retur n equipment. Pl ease conta ct Net Safet y Monitoring at (403) 219-0688 before returning equi pment or consult our Servi ce Department to possibl y avoid returning equi pment.
Net Safety Monitoring Inc MLP-A/AR/AD-ST1400-25 20 Rotate PCB Assembly 1. Remove the Controlle r ’ s Housing Cover . 2. T urn the power to the detect or of f. 3. Unscrew both the knobs marked "Pull Here". 4. Lift Contro ller facep late from Ho using and all ow to hang from r ibbon cable .
Net Safety Monitoring Inc. MLP-A/AR/AD-ST1400-25 21 Appendix B: R ESISTANCE T ABLE IN OH MS Note: Resista nce shown is one way . This figure should be doubled when deter mining closed loop resistance. Distance (F eet) A WG #20 A WG #18 A WG #16 A WG #14 A WG #12 A WG #10 A WG #8 1 0 0 1 .
Net Safety Monitoring Inc. MLP-A/AR/AD-ST1400-25 22 Appendix C: S PECIFICATI ONS S ENSOR S PECIFICATIONS C ONTROLLER S PECIFICATION SENSOR ELEMENT Oxygen O2 (ST1400) Operating T emperature Range -20°.
N et Safety Monitorin g Inc., 2 721 Hopewell Place NE C algary , Alb erta, Canada T 1Y 7J7 T elephone : (403) 21 9-0688 Fax : (403) 219- 0694 E -mail: netsafe@net-safety .
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