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Bacharach AGM-SZ Installation & Operation Manual

Manual is about: Single Zone Gas Monitors

Summary of AGM-SZ

  • Page 1

    Single zone gas monitors hgm-sz (halogen) and agm-sz (ammonia) instruction 3015-4256 installation / operation / maintenance rev 13 – january 2013 patent 6,590,690 ul 61010-1 csa 22.2 no. 61010-1 en 14624 product leadership • training • service • reliability.

  • Page 2

    Single zone gas monitor ii p/n: 3015-4256 rev 13 warranty bacharach, inc. Warrants to buyer that at the time of delivery this product will be free from defects in material and manufacture and will conform substantially to bacharach inc.'s applicable specifications. Bacharach's liability and buyer's ...

  • Page 3: Table Of Contents

    Single zone gas monitor p/n: 3015-4256 rev 13 iii table of contents section 1. Introduction..................................................................................................................... 1 1.1. How to use this manual.................................................................

  • Page 4

    Single zone gas monitor iv p/n: 3015-4256 rev 13 3.4.1. Overview ................................................................................................................................ 22 3.4.2. Clearing / silencing a gas alarm ..................................................................

  • Page 5: Section 1.  Introduction

    Single zone gas monitor p/n: 3015-4256 rev 13 1 section 1. Introduction 1.1. How to use this manual thank you for investing in a bacharach single zone monitor. This manual provides important information on how to install, operate, and service the sz monitoring unit. To assure operator safety and the...

  • Page 6

    Single zone gas monitor 2 p/n: 3015-4256 rev 13 1.5.1. Ac power supply important: the single zone monitor uses a universal power supply that is capable of accepting inputs of 100 to 240 vac, 50/60 hz. The monitor’s power consumption is 15 watts. It is highly recommended that the monitor be connected...

  • Page 7

    Single zone gas monitor p/n: 3015-4256 rev 13 3 1.5.8. Fusing warning: this device uses type “f” fuses (f1 and f2) rated at 1.0 a, 250 vac. Replace only with bacharach-approved fuses. 1.5.9. Installation category important: this device is classified as installation category ii, pollution degree ii, ...

  • Page 8

    Single zone gas monitor 4 p/n: 3015-4256 rev 13 the sz monitor is shipped with its leak, spill, and evacuate alarm levels set at 100, 300 and 500 ppm respectively. Setting the monitor at these recommended alarm levels will satisfy the needs of most users. However, the ppm levels generated by system ...

  • Page 9

    Single zone gas monitor p/n: 3015-4256 rev 13 5 1.7. Specifications category hgm-sz specifications product type single-zone infrared monitoring system for low level continuous monitoring of cfc, hcfc and hfc refrigerant gasses used in most commercial refrigeration systems. System design supports com...

  • Page 10

    Single zone gas monitor 6 p/n: 3015-4256 rev 13 category general single zone specifications coverage single zone detector type infrared, non-dispersive warm-up time 15 minutes front panel 3 indicator lights: • green monitor is powered on. Led glows during normal operation; flashes when unit is in wa...

  • Page 11: Section 2.  Installation

    Single zone gas monitor p/n: 3015-4256 rev 13 7 section 2. Installation 2.1. Installation considerations 2.1.1. Warnings and cautions warning: explosion hazard! Do not mount the sz monitor in an area that may contain flammable liquids, vapors or aerosols. Operation of any electrical equipment in suc...

  • Page 12

    Single zone gas monitor 8 p/n: 3015-4256 rev 13 figure 2-1. Enclosure mounting specs hold the monitor flat against the mounting surface and allow it to slide down engaging the screw heads in the keyhole slots of the mounting brackets. Adjust the screws as necessary to hold the monitor securely again...

  • Page 13

    Single zone gas monitor p/n: 3015-4256 rev 13 9 2.3.2. Tubing considerations use ¼ in. Outside diameter (0.040 in. Wall) flex tubing for all air lines (p/n 0304-2743 or equivalent for hgm; p/n 0304-2742 or equivalent for agm). The tubing should be clean and free of moisture or other contaminants. Th...

  • Page 14

    Single zone gas monitor 10 p/n: 3015-4256 rev 13 2.3.4. Connecting the exhaust line the exhaust line carries the exhausted gas sample away from the monitor and is required if the monitor is located in a confined, poorly ventilated area. If no purge line is used (ammonia monitor) you must vent the ex...

  • Page 15

    Single zone gas monitor p/n: 3015-4256 rev 13 11 2.4. Interior schematic (halogen hgm) figure 2-5. Interior assembly of the single zone halogen gas monitor note : the plastic cable tie surrounding the pump is for stability during shipping. Please remove before operating. If the unit gets shipped to ...

  • Page 16

    Single zone gas monitor 12 p/n: 3015-4256 rev 13 2.5. Interior schematic (ammonia agm) figure 2-6. Interior assembly of the single zone ammonia gas monitor note: the plastic cable tie surrounding the pump is to ensure safe handling during shipping. Please remove before operating. If the unit gets sh...

  • Page 17

    Single zone gas monitor p/n: 3015-4256 rev 13 13 2.6. Electrical wiring the sz unit uses a universal power supply that is capable of accepting inputs of 100 to 240 vac, 50/60 hz. The monitor’s power consumption is 15 watts (maximum). It is highly recommended that the monitor be connected directly to...

  • Page 18

    Single zone gas monitor 14 p/n: 3015-4256 rev 13 2.7. Connecting external alarms 2.7.1. Overview the sz monitor includes four spdt relays whose contacts are rated 2 a at 250 vac (inductive) and 5 a at 250 vac (resistive). These relays are used for the connection of external alarm devices that are ac...

  • Page 19

    Single zone gas monitor p/n: 3015-4256 rev 13 15 figure 2-9. Typical ac external alarm relay 1 wiring figure 2-10. Typical dc external alarm relay 1 wiring.

  • Page 20

    Single zone gas monitor 16 p/n: 3015-4256 rev 13 jumper the ‘live/positive’ line of an external power source (dc devices) or the monitor’s ac input (ac devices) to the ‘common’ terminal on the relay connector. Connect the ‘live/positive’ end of the strobe or horn to the ‘no’ terminal of whichever le...

  • Page 21: Section 3.  Operation

    Single zone gas monitor p/n: 3015-4256 rev 13 17 section 3. Operation 3.1. Front panel display and controls keypad use these buttons to: 1. Enter function mode, then move arrow (>) on screen to the desired function 2. Scroll through data 3. Change a function’s value monitor on led (green) flashes du...

  • Page 22

    Single zone gas monitor 18 p/n: 3015-4256 rev 13 3.2. General operation once the sz monitor has been installed, set up, and powered on, the monitor will make measurements in the area being sampled for desired gas without further operator intervention. The results of those measurements are shown on t...

  • Page 23

    Single zone gas monitor p/n: 3015-4256 rev 13 19 3.3. Display screens 3.3.1. Initial power up when the sz monitor is first powered up all front panel lights are turned on, and a splash screen appears showing the monitor’s firmware revision level. After a brief moment the warm up screen is display al...

  • Page 24

    Single zone gas monitor 20 p/n: 3015-4256 rev 13 ppm log – contains records of the last 200 measurements. Each record shows the measurement’s date, time, and ppm level. Note that the interval at which the measurements are logged is determined by the log int function. Use the keypad up and down butto...

  • Page 25

    Single zone gas monitor p/n: 3015-4256 rev 13 21 spilllvl – sets the spill alarm level, adjustable from no lower than the leak alarm level to a maximum value of 500 ppm, but not higher than the evacuate alarm level. Factory default is 300 ppm. Refer to appendix for recommended alarm settings for oth...

  • Page 26

    Single zone gas monitor 22 p/n: 3015-4256 rev 13 squelch – sets a value of between 0.0 and 99.9 ppm that prevents the display of measurements below that value. Factory default is 0 ppm. For example, if the squelch setting is set to 50 ppm, then the monitor will not display measurements that are belo...

  • Page 27

    Single zone gas monitor p/n: 3015-4256 rev 13 23 3.5. System faults 3.5.1. Overview if a system malfunction occurs, the sz monitor will detect the problem and turn on the front panel system fault light. Additionally, an external alarm device may activate and the monitor’s internal audible alarm may ...

  • Page 28

    Single zone gas monitor 24 p/n: 3015-4256 rev 13 3.5.4. Fault codes fault codes are additive. For example: a fault code of indicates that both a purge flow fault and a zone flow fault have occurred. Code name description box temperature fault enclosure temperature is outside normal range (or ir dete...

  • Page 29

    Single zone gas monitor p/n: 3015-4256 rev 13 25 3.6. Clearing the stored ppm log, alarm and fault data up to 200 gas measurements, and 30 alarm and fault events are stored by the monitor. To clear stored data, first display the data to be cleared by using the ppm log , alarms or faults function (pa...

  • Page 30

    Single zone gas monitor 26 p/n: 3015-4256 rev 13 3.9. The diagnos function 3.9.1. Overview the diagnos function displays sensor data and status information useful to a service technician for troubleshooting various fault conditions. Explanations of the data shown in these screens are given below. 3....

  • Page 31

    Single zone gas monitor p/n: 3015-4256 rev 13 27 3.10. The calibration function 3.10.1. Overview if greater than standard accuracy is desired, the factory’s default calibration factor of 1.000 may be adjusted by performing the calibration procedure as described below, and then selecting the monitor’...

  • Page 32: Section 4.  Maintenance

    Single zone gas monitor p/n: 3015-4256 rev 13 28 section 4. Maintenance 4.1. Warnings and cautions warning: shock hazard! Always disconnect ac power before working inside the monitor. Warning: before performing any operation or maintenance, verify connection of the ac power ground wire to the monito...

  • Page 33

    Single zone gas monitor p/n: 3015-4256 rev 13 29 4.5. Fuses the sz monitor is protected from electrical damage by two, 1 a, 250 v, type “f” fuses (page 11). Carefully remove the fuses from their fuse clips and visually inspect each fuse for damage. Replace the fuses as required (p/n 0004-2620). 4.6....

  • Page 34

    Single zone gas monitor 30 p/n: 3015-4256 rev 13 4.10. Replacement parts and optional accessories replacement parts p/n optional accessories p/n general p/n general p/n hgm-sz complete assembly 3015-4200 splitter kit (2-way) 3015-5404 agm-sz complete assembly 3015-4280 splitter kit (3-way) 3015-5405...

  • Page 35

    Single zone gas monitor p/n: 3015-4256 rev 13 31 4.11. Service centers replacement parts and service can be obtained by contacting one of the following bacharach service centers. United states bacharach, inc. 621 hunt valley circle new kensington, pa 15068-7074 phone: 724-334-5000, 800-736-4666 fax:...

  • Page 36: Appendix A.  Data Tables

    Single zone gas monitor 32 p/n: 3015-4256 rev 13 appendix a. Data tables a.1. Recommended alarm settings refrigerant leak ppm spill ppm evacuate ppm r11 100 300 500 r12 100 300 500 r22 100 300 500 r23 100 300 500 r113 100 300 500 r114 100 300 500 r123 25 35 50 r124 100 300 500 r134a 100 300 500 r401...

  • Page 37

    Single zone gas monitor p/n: 3015-4256 rev 13 33 a.2. Response time/flow rate gas-sample line feet (meters) response time seconds (hgm) response time seconds (agm) 0 0 0 100 (30.5) 20 40 200 (61) 40 60 300 (91.4) 56 90 400 (123) 80 120 500 (152.4) 105 180 dependent on gas-sample line length; 0.25" o...

  • Page 38

    Single zone gas monitor 34 p/n: 3015-4256 rev 13 appendix b. Agency approvals d eclaration of c onformity the manufacturer of the products covered by this declaration: bacharach, inc. 621 hunt valley circle new kensington, pa 15068 year conformity is declared: 2010 (en 14624), 2008 (all others) prod...

  • Page 39

    Single zone gas monitor p/n: 3015-4256 rev 13 35 ∇ ∇ ∇.

  • Page 40

    Single zone gas monitor 36 p/n: 3015-4256 rev 13 headquarters: 621 hunt valley circle, new kensington, pa 15068-7074 toll free: 800-736-4666 • tel: +1-724-334-5000 • fax: +1-724-334-5001 website: www.Mybacharach.Com • e-mail: help@mybacharach.Com printed in u.S.A. ® registered trademark of bacharach...