Page 5 - Table of Contents
Table of Contents Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 In tro d u c tio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 6 - Appendix B Wire Resistance In Ohms
F ig u re 1 7 - M a g n e tic R e e d S w itc h A c tiva tio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5 2 C alibra tion P roc ed ure for U N I-T R A N P rem ium P lus S T 14 00 O se ns or . . . . . . . . . . . . . . . . . . 2 6R e la y S e ttin g s . . . . . ...
Page 7 - Chapter 1 Introduction; Introduction
1 Chapter 1 Introduction Introduction The Uni-Tran micro-controller based toxic gas detector provides fast, accurate, continuous and cost effectivemonitoring of toxic gases in harsh industrial environments. N e t S a fe ty se le c ts th e v e ry b e st e le c tro c h e m ic a l se n so r s fro m th ...
Page 8 - Chapter 2 Installation and Start Up; What’s in the package
2 Chapter 2 Installation and Start Up What’s in the package Carefully remove all the components from the packing box(s). Check components against the packing list.Inspect all components for obvious damage and broken/loose parts. Notify the carrier and distributorimmediately if damage is found or par...
Page 9 - Mounting
3 F igu re 1 T o x ic D e tec to r L a yo u t Mounting The housing should be oriented so that the sensor is on the underside of the housing. Water will damageelectronic devices. Seal conduit near housing entries to prevent water damage in the enclosure (refer to figure2, 3, 4 and 5).
Page 10 - D im e n s io n a l D ra w in g s
4 F igu re 2 U n i-T ra n P re m ium p lus d im e n sio n a l d ra w ing fo r th e S T 1 2 0 0 S T 1 3 0 0 S T 1 4 0 0 S T 1 5 0 0 S T 1 6 0 0 to x ic se n so rs. D im e n s io n a l D ra w in g s
Page 14 - Wiring
8 Wiring (refer to figure 7, 8, 9, 10, 11 and 12) NOTE: The wiring procedures in this manual are intended to ensure proper functioning of the deviceunder normal conditions. However, because of the many variations in wiring codes andregulations, total compliance to these ordinances cannot be guarante...
Page 15 - S e n s o r S e p a ra tio n
9 F i g u re 6 D is p la y B o a r d L a y o u t non-hazardous area. Conform to local wiring codes. When pouring a seal, use a fibre dam to assure proper formation of the seal. Seals should never be poured attemperatures below freezing. The jacket and shielding of the cable should be stripped back t...
Page 17 - Wiring Diagrams
11 F ig u re 7 U n i-T ra n P r e m iu m P lu s w irin g d ra win g fo r th e S T 1 4 0 0 to x ic se nso r Wiring Diagrams
Page 23 - Installation Checklist; Start Up
17 F i g u re 1 3 D is p la y B o a r d L a y o u t Installation Checklist The following checklist is provided for double checking the system to be sure that all phases of systeminstallation are complete and have been performed correctly . T Toxic Detector is securely mounted T All cable shields are...
Page 24 - Relay Settings; M a in M e n u
18 Relay Settings This option allows you to set the alarm levels, coil status and the latch status of the low and high alarm relays.The Following table describes the default settings for the various sensors. Table 1 - Default Relay Settings UNITRAN Premium Plus Model Number Alarm Levels Relay Coil S...
Page 25 - Summary of Main Menu
19 F ig ure 1 4 - M a g ne tic R e e d S w itc hA c tiv a tio n In order to enter the main menu of the detector place the curved side ofthe magnet on the side of the enclosure at the 10 o’clock position (seeFigure 15) where marked to actuate the magnetic reed switch or press theCal/Reset switch. Rel...
Page 26 - Review Settings; Chapter 3 System Calibration
20 “Latching” and “Non-Latching” until one is selected or a 5 minute timer expires in which case the unit returns to normal operation. Step 4 . High relay options are set next. The high alarm relay cannot be set to a value lower than the 2 low alarm relay setting or higher than 100 (25 for the ST140...
Page 27 - Calibration Procedure
21 F ig ure 1 5 - M a g ne tic R e e d S w itc hA c tiv a tio n Calibration Procedure NOTE The Toxic Detector should always be calibrated when first installed in the field and prior tocalibration we recommend that the toxic detector run for at least 4 hours. It is necessary to calibrate the UNI-TRAN...
Page 28 - Calibration Procedure for UNI-TRAN Premium
22 sequence the status LED alternates flashes of RED and GREEN, the analog output changesback and forth from 3.0 to 3.3mA and Fail Cal. message is displayed on the screen. The unitremains in this state until acknowledged by a manual Reset. After manual Reset the programwill return to the normal oper...
Page 29 - Periodic Response Check; Chapter 4 Operation; Operator Interface
23 F ig ure 1 6 - M a g ne tic R e e d S w itc hA c tiv a tio n Periodic Response Check We recommend that the toxic gas detector be verified or calibrated every 3 months.A typical response check involves the application of calibration gas to the sensor, then the observation of theresponse LEDs, anal...
Page 34 - Sensor Drift; Hardware
28 Start Delay When power is first applied to the monitor it will initiate a 90 second warm-up routine. During this time it willoutput 3.0mA and the Status LED will flash (slow) red. After warm-up, the monitor will enter the normaloperation (clear) mode, the analog output will change to 4.0mA and th...
Page 35 - O u tp u ts; Relays
29 V is u a l In d ic a to rs (L ig h t E m ittin g D io d e s ) The Toxic Detector provides various LEDs for identifying operating conditions. The indicators include a fourdigit LED alphanumeric display, a green/red Status LED and a green power LED. These LEDs are visiblethrough the glass cover of ...
Page 36 - Sensor Life; Chapter 5 Troubleshooting; Return and Repair
30 output indicates that the smog alarm threshold has been exceeded. Current output of 2.5 mA indicates thepresence of a system fault. Current output of 3.3 mA indicates a build-up of particulate in the sensor chamber. Sensor Life Sensor response normally deteriorates slowly over a period of several...
Page 37 - Chapter 6 Glossary of Terms
31 Chapter 6 Glossary of Terms Start Delay Uni-Tran Net Safety : power up delay in progress Switch On: magnetic reed switch is activated or manual reset switch isactivated Calibrate Sensor: mode for calibrating the unit Auto Cal: automatic calibration mode Sensor Fault: fault present, sensor or sens...
Page 38 - Ordering Information
32 De-Energized: relay is normally de-energized Latch Status: set the latch status of relays on alarm condition Latching: relay latches at alarm condition Non-Latching: relay does not latch in alarm condition Low Alarm Level: low alarm relay is activated High Alarm Level: high alarm relay is activat...
Page 39 - Appendix A
33 * P u b lis h e d in A c c o r d a n c e w it h E 1 A s ta n d a rd 4 7 1 Appendix A Net Safety Monitoring Inc. Electrostatic Sensitive Device Handling Procedure With the trend toward increasingly widespread use of microprocessors and a wide variety of otherelectrostatic sensitive semiconductor d...
Page 41 - Appendix C Specifications; S e n so r S p e c ific a tio n s; C o n tro lle r S p e c ific a tio n s
35 Appendix C Specifications S e n so r S p e c ific a tio n s SENSORELEMENT 2 H S (ST1200) electro-chemical 2 H S (ST1210) electro-chemical 2 SO (ST1300) electro-chemical 2 CL (ST1500) electro-chemical CO (ST1600) electro- chemical OperatingTemperature Range -40 / C to +50 / C (-40F to +122F) -40 /...
