Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Bacharach MGS 400
Summary of Contents for Bacharach MGS 400
- Page 1 1100-2294 Rev 1...
- Page 2 Bacharach, Inc. warrants to buyer that it will convey good title to this product. Bacharach’s liability and buyer’s remedy under this warranty of title are limited to the removal of any title defects or, at the election of Bacharach, to the replacement of this product or parts thereof that are defective in title.
-
Page 3: Table Of Contents
Table of Contents Table of Contents 1. Introduction 1.1 About this Manual 1.2 Conventions 1.2.1 Short Form Instructions 1.2.2 Iconography 1.3 General Safety Statements 1.4 Safe Connection of Electrical Devices 2. Product Descriptions 2.1 Intended Uses / Applications 2.2 Transmitter Construction 2.3 Power Options 2.4 Diagnostic / Status LED 2.5 Configurable Output Signals... - Page 4 3.4.7 Confirming Instrument Functionality 4. Operation 4.1 Overview of Normal Operation 4.1.1 Applying Power & the Start-up Sequence 4.1.2 Verifying Analog Signals 4.1.3 Verifying the Modbus Signal 4.1.4 Status Indication 4.1.5 Switch Functions 4.1.6 Reset System to Factory Default Settings 4.2 MGS-400 Smartphone Application ®...
- Page 5 Analog Span Range 5. Care & Maintenance 5.1 Maintenance Intervals 5.2 Adjustments 5.2.1 Introduction 5.2.2 General Calibration Procedure 5.2.3 Zero Adjustment 5.2.4 Span Adjustment 5.2.5 System Bump Test 5.3 Troubleshooting 5.3.1 Hexadecimal Format 5.3.3 Fault Codes 5.4 Sensor Maintenance 5.4.1 Replacing the Sensor Module 5.5 Cleaning the Instrument 6.
- Page 6 6.4.8 MGS Compatibility - Clear Special States 6.4.9 Integration - User Tasks 7. Ordering Information 7.1 Part Numbers 7.1.1 MGS-400 Gas Detector Configurations 7.1.2 MGS-400 Series Accessories 7.2 Service Center Locations 1100-2294 Rev 1...
-
Page 7: Introduction
1. Introduction 1.1 About this Manual Thank you for investing in a Bacharach MGS-400 gas detector. To ensure operator safety and the proper use of the gas detector, please read the contents of this manual for important information on the operation and maintenance of the instrument. -
Page 8: General Safety Statements
CAUTION: Except for maintenance detailed in this manual, these products should only be opened and / or serviced by authorized Bacharach personnel. Failure to comply may void the warrant. -
Page 9: Safe Connection Of Electrical Devices
1.4 Safe Connection of Electrical Devices WARNING: Before connecting this instrument to electrical devices not mentioned in this manual, consult the manufacturer or a qualified professional. Failure to comply may result in injury and / or damage to the product. 1100-2294 Rev 1... -
Page 10: Product Descriptions
2. Product Descriptions 2.1 Intended Uses / Applications MGS-400 gas detectors are to be installed in non-classified, non-hazardous, permanent locations for the purpose of continuously monitoring ambient air (indoor or outdoor) for the following gas types: • Refrigerants • Oxygen •... -
Page 11: Diagnostic / Status Led
2.5 Configurable Output Signals MGS-400 gas detectors may be connected to a Bacharach’s MGS-408 Gas Detection Controller or a third-party device capable of accepting digital and/or analog outputs from the gas detectors, such as a Building Management System (BMS) or Programmable Logic Controller (PLC). - Page 12 0 to 5V; 1 to 5V; 0 to 10V; 2 to 10V (selectable). During Analog Voltage fault condition, 1 to 5V and 2 to 10V outputs are 0V. Baud rate:......9,600 or 19,200 (selectable) Start bits:................. 1 Signals to Data bits:................. 8 Central Controller Modbus RTU over...
- Page 13 Enclosure IP41 / IP66 Protection MGS-410: 5.1×5.1×2.7” (130×130×68 mm) MGS-450 IP41: 6.5× 6.5×3.0” (165×165×77 mm) Enclosure Size MGS-450 IP66: 6.5×6.5×3.4” (165×165×87 mm) Physical × × D) (Approx.) MGS-460: 6.5×6.5×3.4” (165×165×87 mm) Specifications MGS-460 Remote: 4.5× 5.4×2.7” (115×136×68 mm) (260 g) MGS-410: 9.2oz (480 g) MGS-450: 1lb, 1oz...
-
Page 14: Components
2.8 Components CAUTION: This product uses semiconductors which can be damaged by electrostatic discharge (ESD). When handling the printed circuit boards (PCBs), observe proper ESD precautions so that the electronics are not damaged. 2.8.1 MGS-410 Components Component Description Component Description M16 Cable Glands (×4) Ribbon Cable Connection (To Sensor) Rubber Gasket... -
Page 15: Mgs-450 Components
2.8.2 MGS-450 Components Component Description Component Description M16 Cable Glands (×6) Tactile Switch #2 Rubber Gasket (IP66 Version Only) Relay 3 Connection (FAULT) Internal Alarm Buzzer Relay 2 Connection (HIGH) Power Connections (×2) Relay 1 Connection (LOW) Digital Connection (Modbus) Magnetic Switch #1 Analog Connection Magnetic Switch #2... -
Page 16: Mgs-460 Components
2.8.3 MGS-460 Components Component Description Component Description M16 Cable Glands (×6) Tactile Switch #2 Rubber Gasket (×2) Relay 3 Connection (FAULT) Internal Alarm Buzzer Relay 2 Connection (HIGH) Power Connections (×2) Relay 1 Connection (LOW) Digital Connection (Modbus) Magnetic Switch #1 Analog Connection Magnetic Switch #2 Tactile Switch #1... -
Page 17: Installation
3. Installation IMPORTANT: The manufacturer of this product requires that a bump test or calibration be performed following installation to verify instrument functionality. 3.1 General Information Installation site selection is critical to ensuring system performance and effectiveness. Strict compliance and considerable thought must be given to every detail of the installation process, including, but not limited to the following: ●... -
Page 18: Restrictions
3.2 Restrictions The installation location must have appropriate supply power available for the instrument (i.e., 19.5 to 28.5 VDC or 24 VAC). This ultimately determines the distance the instrument can be mounted from the controller or power supply. 3.3 Mechanical Installation WARNING: DO NOT allow the lid / sensor to hang from the ribbon cable. -
Page 19: Power & Signal Wiring
3.4.2 Power & Signal Wiring 1. Locate the relevant connections (Power, Analog, Modbus) and remove the terminal block from the PCBA. (The PCB terminal blocks are pluggable type and may be removed to aid termination.) Connection Description Label Wiring Termination 24 VDC/VAC neutral / 24V IN: - ground... -
Page 20: Relay Wiring
3.4.3 Relay Wiring WARNING: Relays are rated for 0 to 30V AC/DC. DO NOT apply mains power onto these relays. 1. Locate the relevant connections (Relay 1, Relay 2, Relay 3) and remove the terminal block from the PCBA. Relay Function Low Alarm High Alarm... -
Page 21: Connecting To Mgs-408 Gas Detection Controller
The MGS-460 features a remote sensor, which allows users to detect the presence of gases in inaccessible locations. Standard RJ45 “Cat 5E STP” Ethernet cable up to 5 meters long (included) may be used with the remote sensor. 1. Remove the bottom right M20 cable gland plug and gland cap, and carefully remove the gland rubber insert. -
Page 22: Confirming Instrument Functionality
● Instruments at end of bus have 120Ω terminating resistor enabled. Terminating resistors may be enabled via the MGS-400 App (refer to Section 4.2.3.6 for more information). ● A/B signal polarity is maintained throughout RS-485 network. ● Connect cable shield drain to physical earth or ground at the controller only. ●... -
Page 23: Operation
4. Operation 4.1 Overview of Normal Operation WARNING: Before leaving the instrument for normal operation, check the configuration for proper settings and check calibration. 4.1.1 Applying Power & the Start-up Sequence After applying power, the instrument will go through a start-up sequence (initialization, audible/visual test and self-test sequence). -
Page 24: Verifying The Modbus Signal
The instrument may also enter several special states, these are indicated by the specific analog output levels indicated below: Mode of Operation 1-5V 0-5V 2-10V 0-10V 4-20mA ≤ 0.3V ≤ 0.6V ≤ 1.2 mA Instrument Fault Offline Mode / Maintenance 0.75V 1.5V 3 mA... -
Page 25: Status Indication
4.1.4 Status Indication The MGS-400 gas detectors provide external indication of their current operational state via audible and visual feedback. (MGS-450 / 460 gas detectors also provide relays outputs.) Visual indication of the instrument status is provided by a single tri-color LED (Green / Red / Orange) as indicated below: Relay 1 Relay 2... -
Page 26: Reset System To Factory Default Settings
Depending on the duration the switch is held, a short “TAP” or long “HOLD” will be detected: To carry out a tap function, tap the relevant switch location for 1 second, until a single “chirp” is heard, remove wand to confirm a “TAP.” ... -
Page 27: Mgs-400 Smartphone Application
® 2. Launch the MGS-400 App and click the Bluetooth icon at the bottom of the screen to initiate a scan. 3. Select the instrument from the list of available Bacharach gas detectors. MGS-410 default alias is “18TMA-DT” ... - Page 28 Description Alias - user configured instrument name Serial Number - instrument 8 digit serial number Gas - gas type currently detected by instrument Status Ring - provides visual indication of various instrument states (expanded on below) Live Measurement - current measurement in given measurement units Measurement Unit - displayed...
-
Page 29: Instrument Configuration
4.2.3 Instrument Configuration For security, access to configuration and calibration options are restricted to authorized users only. Access to these functions require use of an unlock code. To unlock instrument configuration: Configure Tab When prompted, enter unlock code to access device configuration. (The instrument’s default code is “1234”). -
Page 30: Reset To Factory Defaults
Instrument must be restarted for change to take effect. Home Tab Restart, will reboot device. Reconnect to instrument to confirm unlock code has been updated. IMPORTANT: If custom passcode is forgotten, unlock code may be reset to default value (123456) by resetting system to factory defaults. -
Page 31: High Alarm Setpoint
High alarm Setpoint Value above which a high alarm condition occurs. High alarm setpoint must be less than the sensor full scale range and greater than the low alarm setpoint. Range of acceptable setpoints is displayed when updating parameter. To update setpoint: ... -
Page 32: Baud Rate
Baud Rate Sets instrument baud rate for connection to RS-485 Modbus interface. (Default: 9600 baud) To set baud rate: Configure Tab Modbus Baud Rate, select 9600/19200, select OK to confirm Stop Bits Sets instrument stop bits for connection to RS-485 Modbus interface. (Default: 1 stop bits) To set number of stop bits: ... -
Page 33: Buzzer
Buzzer Enable or disable buzzer. Buzzer provides local audible alarm/fault indication. Buzzer is enabled by default. To enable/disable buzzer: Configure Tab Outputs Buzzer, select enable/disable, select OK to confirm Relay Failsafe Enable or disable Relay Failsafe operation. When configured for fail-safe operation, relays are energized during normal operation. -
Page 34: Analog Span Range
Analog Span Range Analog span range scales the FSD (full-scale deflection) of the analog output. The selected range determines the equivalent gas measurement at the analog output maximum range. Example: R134A 1000 ppm, 0-5V analog output. If Analog Span Range is set to 20%, the full analog output range only covers the first 20% of the gas measurement range, i.e 0-200 ppm will output 0-5V, above 200 ppm the output will be truncated to 5V. -
Page 35: Care & Maintenance
Every 6-12 Months** Check signal transmission to the BMS/BAS (central controller) if connected.* Calibrate the sensor or contact Bacharach for sensor exchange with factory‑ calibrated sensor. As Required Replace sensor module(s) Feature may be activated via Modbus commands or MGS-400 App. -
Page 36: Adjustments
Zero First, Then Span: For proper operation, never adjust the span before completing a zero adjustment. Performing these operations out of order will cause faulty calibration. IMPORTANT: Bacharach recommends calibrating detectors within the application-specific condition and with target gas. This method of zeroing the detector in the application environment and performing a target gas calibration is more accurate. -
Page 37: General Calibration Procedure
5.2.2 General Calibration Procedure WARNING: The MGS-400 Gas Detector MAY NOT be in an alarm or fault condition during calibration. Acknowledge any alarms or faults BEFORE attempting to begin the calibration process. WARNING: Except for CO or O sensors, calibration gas must be in a balance of air, not nitrogen (N IMPORTANT: Calibration and / or bump testing requires the MGS-400 calibration adapter kit (P/N: 6302-9990). -
Page 38: Span Adjustment
b. Manual: tap MAG#1 within 30-seconds or the instrument will time-out and return to normal operation. 4. Complete zero adjustment: a. MGS-400 App: app will countdown to completion. If calibration is successful, proceed to Step 5. If calibration is unsuccessful, return to the Home screen and press the Acknowledge button to clear the zero calibration fault. -
Page 39: System Bump Test
b. Manual: the LED will blink green-orange, green-orange-orange, green-orange- orange-orange, etc. until calibration is complete. To abort, hold MAG#2 for >5- seconds, turn off gas flow and remove the calibration adapter. If calibration is successful (LED blinks green-orange-red), proceed to Step 5. If calibration is unsuccessful (LED blinks orange @ 2 Hz), tap MAG#2 to discard the calibration attempt. -
Page 40: Troubleshooting
5.3 Troubleshooting 5.3.1 Hexadecimal Format All fault codes can be retrieved through the Modbus interface and are shown in hexadecimal (hex) format. A hex digit can represent multiple codes as shown below: Equivalent Equivalent Equivalent Code Error Code(s) Code Error Code(s) Code Error Code(s) 1+2+3... - Page 41 Fault Bit System Fault Possible Causes Required Action(s) Power-cycle. Firmware error (e.g. 0x00000001 Software fault If it re-occurs, call product unexpected state) support Voltage out of 0x00000002 Voltage rail out of range specification 1V Voltage out of 0x00000004 Voltage rail out of range specification 3.3V Voltage out of 0x00000008...
-
Page 42: Sensor Maintenance
Power-cycle / check sensor Sensor EEPROM Read Error in reading from 0x00800000 connection / replace sensor Fault sensor EEPROM module Sensor EEPROM Write Error in writing to sensor 0x01000000 Call product support Fault EEPROM Sensor EEPROM CRC Error in CRC from sensor Power-cycle / replace sensor 0x02000000 module... -
Page 43: Cleaning The Instrument
6. Ensure gasket is aligned correctly (IP66 versions only) and tighten the lid using the supplied hardware in an “X” pattern. Tightening torque should be limited to hand tight and should be uniform. 7. Power-up the gas detector. 8. After start-up sequence has finished, check sensor response (bump test). 5.5 Cleaning the Instrument Clean the detector with a soft cloth using water and a mild detergent. -
Page 44: Additional Information
6. Additional Information 6.1 Sensor Principle 6.1.1 Electrochemical Sensors Electrochemical sensors measure the partial pressure of gases under atmospheric conditions. The monitored ambient air diffuses through a membrane into the liquid electrolyte in the sensor. The electrolyte contains a measuring electrode, a counter-electrode and a reference electrode. An electronic “potentiostat”... -
Page 45: Semiconductor Sensors
It may be necessary to check the calibration if the sensor has been exposed for a long time to a high concentration of flammable gases, vapors, or the above-mentioned contaminating substances. The nature of catalytic bead sensor technology means that sensor drift may typically be up to ±5% LEL per month. -
Page 46: Disposing Of The Instrument
However, this device has not been registered for household usage. Therefore it must not be disposed of through these channels. The device can be returned to your national Bacharach Sales Organization for disposal. Please do not hesitate to contact Bacharach if you have any further questions on this issue. -
Page 47: Modbus Registers
6.4 Modbus Registers IMPORTANT: If items span two registers (e.g., 1005 and 1006), then the registers are “long” or “float” data types. Otherwise, the registers are integer data types or ASCII. To unlock the Modbus registers: Write the correct unlock code to Modbus register 2100 to allow changes to be made to the system configuration. -
Page 48: Integration - Static Sensor Data
1114 Low Alarm Flag Set if low alarm is active 1115 High Alarm Flag Set if high alarm is active 1116 Fault Flag Boolean Set if any fault flag is active 1117 Sensor Saturation Flag Set if gas concentration exceeds full-scale range 1118 Sensor Underflow Flag Set if gas concentration falls below zero... -
Page 49: Integration - General System Setup
Gas Type Characters 5 & 6 (10 character gas string = 1138 Gas Type Text Char 5,6 "XXXXXXXXXX") Gas Type Characters 7 & 8 (10 character gas string = 1139 Gas Type Text Char 7,8 "XXXXXXXXXX") Gas Type Characters 9 & 10 (10 character gas string = 1140 Gas Type Text Char 9,10 "XXXXXXXXXX") -
Page 50: Integration - Calibration
�� 2103 Stop Bits Stop bits = 1 or 2 16-bit Unsigned �� Integer 2104 Parity 0 = None, 1 = Odd, 2 = Even �� 2105 Enable 120ohm Termination Boolean 0 = No termination, 1 = termination enabled Sensor Low Alarm Low gas alarm in display units (Local Alarm set points ��... -
Page 51: Integration - User Debug Tools
6.4.5 Integration - User Debug Tools �� Holding Register (Function 03/06 Read / Write) Setting this flag places the unit into offline mode. When offline the unit will not respond to gas events or �� 2800 Offline Mode generate alarm conditions. The flag will remain asserted for the duration of offline mode. -
Page 52: Mgs Compatibility - Clear Special States
High Alarm flag (0 or 1 = 3102 Set if high alarm is active alarm) 3103 Sensor Fault (0 or 1 = fault) Set if any fault flag is active Sensor Saturation (0 or 1 = 3104 Set if gas concentration exceeds full-scale range Boolean gas outside limits) Sensor Underflow (0 or 1 =... -
Page 53: Ordering Information
7. Ordering Information 7.1 Part Numbers 7.1.1 MGS-400 Gas Detector Configurations IMPORTANT: In the following table, product configurations include: MGS-410 – instrument and one sensing head mounted directly to the instrument enclosure. MGS-450 – instrument and one sensing head mounted directly to the instrument enclosure. - Page 54 0-1,000 ppm 6302-0028 6302-1028 6302-2028 6302-4028 6302-9028 (-40° F/C) 0-5,000 ppm 6302-0037 6302-1037 6302-2037 6302-4037 6302-9037 0-1,000 ppm 6302-0308 6302-1308 6302-2308 6302-4308 6302-9308 0-10,000 ppm 6302-0309 6302-1309 6302-2309 6302-4309 6302-9309 0-100% LEL 6302-0070 6302-1070 6302-2070 6302-4070 6302-9070 0-20 ppm 6302-0041 6302-1041 6302-2041 6302-4041...
-
Page 55: Mgs-400 Series Accessories
R-434A 0-1,000 ppm 6302-0159 6302-1159 6302-2159 6302-4159 6302-9159 R-448A 0-1,000 ppm 6302-0156 6302-1156 6302-2156 6302-4156 6302-9156 R-449A 0-1,000 ppm 6302-0169 6302-1169 6302-2169 6302-4169 6302-9169 R-450A 0-1,000 ppm 6302-0160 6302-1160 6302-2160 6302-4160 6302-9160 R-452A 0-1,000 ppm 6302-0157 6302-1157 6302-2157 6302-4157 6302-9157 R-452B 0-1,000 ppm 6302-0163... -
Page 56: Service Center Locations
Merchandise Authorization Number (RMA #). All returned goods must be accompanied by a RMA #. Pack the equipment securely (in its original packing, if possible), as Bacharach cannot be held responsible for any damage incurred during shipping to our facility.
Need help?
Do you have a question about the MGS 400 and is the answer not in the manual?
Questions and answers