Honeywell MIDAS-M Multi Gas Transmitter User Guide

QUICK REFERENCE GUIDE

MIDAS-M MULTI GAS TRANSMITTER
Fixed Single Point Extractive
Multi-Gas Transmitter

Introduction

The Midas-M® is a Fixed Extractive Single Point with 4-in 1 Multi-Gas Detector that draws a sample locally or from a remote point to a sensor cartridge that is located inside the detector’s chassis. A wide range of toxic, flammable, and oxygen gas sensor cartridges are available that enable the detection of gases used or generated in the Semiconductor and other manufacturing industries.
NOTE: Midas-M is shipped from the factory with the security function disabled. We strongly recommend enabling this function for the safe use of the detector. To enable it, select Set up > Security and type an 8 character password.
NOTE: Instrument grounding is required to ensure stable performance and to limit the effects of radiofrequency interference before installation.

Safety

CAUTION
Failure to observe the following precautions can cause injury to persons or damage to property:

• To minimize the risk of electrostatic charging, provide a suitable ground connection, and install the equipment in such a way that no accidental discharges occur.
• When Midas-M reaches the end of its life, it should be disposed of by local regulations.
• Do not use cleaning solvents or abrasives to clean the gas detector.
• Do not attempt to modify the product in any way from the manufacturer’s design or specification. Warranty will be void and malfunction of the gas detector may result.
• Use only genuine spare parts and accessories with Midas-M. Malfunction may result if non-standard parts are used.
• • Midas-M is suitable for ordinary locations only and must not be installed in hazardous locations.
• Installation must be by the recognized standards of the appropriate authority in the country concerned. For Europe, see  EN60079-14, EN60079-29-2, and EN61241-14. For installations in North America, the National Electrical Code  (NFPA 70) should be strictly observed. All the appropriate local and national regulations should be observed.

Approvals

• Electrical UL/CSA/IEC/EN 610101
• EMC EN 50270
• ROHS

What’s in the Box

• 1 Transmitter device
• 2 Tubes (Large box only)
• 1 Quick Reference Guide

Overview

fault message
6. Device status icons| 12. Buttons
| Wireless Connected| Fault|
---|---|---|---
| Bluetooth Connected| Inhibit|
| Internal pump running| Bump test in progress|
| Cancel
---|---
| Accept
| Up
| Down

Mounting the Transmitter Device

1. Open the door

2. Remove two screws

3. Carefully pull main chassis forward

4. Drill two holes 2.2 in

5. • Partially screw the fixings into the mounting surface.
   • Place the mounting bracket assembly over the screws, so they pass
   through the mounting holes and then slide down to locate in the slots.
   • Tighten the screws to secure the mounting bracket assembly.

6. • Align the rounded corner at the lower of the main module with the similar rounded corner at the bottom of the mounting  bracket assembly
   • Slide the main module backward while pushing the main module up after connecting with a mounting bracket so that the PCB and connector and tubes engage simultaneously.

7. Ensure the PCB, connector, and tubes are fully engaged by firmly pushing the main chassis horizontally backward on the mounting bracket assembly. DO NOT PUSH ON THE LCD AS THIS MAY DAMAGE IT.

8. • Align the two fixing screws located at the bottom of the chassis with the screw threads on the mounting bracket assembly.
   • Tighten the screws to secure the chassis to the mounting bracket assembly.

9. Remove the internal packing card securing the pump. Failure to remove this packing will result in damage to the Midas-M detector.
   

Transmitter Terminals

Terminal
Number| Function| Description
---|---|---
1| 24Vdc Input| 0Vdc
2| 24Vdc Input| +24Vdc
3| mA output – Channel 1| COM
4| mA output – Channel 1| mA-
5| mA output – Channel 1| mA+
6| mA output – Channel 2| COM
7| mA output – Channel 2| mA-
8| mA output – Channel 2| mA+
9| mA output – Channel 3| COM
10| mA output – Channel 3| mA-
11| mA output – Channel 3| mA+
12| mA output – Channel 4| COM
13| mA output – Channel 4| mA-
14| mA output – Channel 4| mA+
15| Relay 1| Normally Closed
16| Relay 1| Common
17| Relay 1| Normally Open
18| Relay 2| Normally Closed
19| Relay 2| Common
20| Relay 2| Normally Open
21| Relay 3| Normally Closed
22| Relay 3| Common
23| Relay 3| Normally Open

Commissioning

WARNING
Before carrying out any work, ensure local and site procedures are followed. Ensure that the associated control panel is inhibited to prevent false alarms. The following procedure should be followed carefully and only performed by suitably trained personnel.

1. Ensure the detector is wired correctly.
2. Ensure that the correct sensor cartridge is fitted. (If the cartridge has not been stored at room temperature, allow one hour  for equilibration.)
3. Ensure the on/off switch on the bottom of the mounting bracket assembly is in the on position.
4. Apply power to the system.
5. After the startup routine, the detector will display the normal operating mode.
6. Perform a leak test to ensure all connections are secure.
7. Waiting…’ will be displayed on booting time.
8. Allow the detector to stabilize until the ‘Warm-up’ message is no longer displayed after booting. The maximum warm-up time is dependent on the sensor type. Refer to individual cartridge datasheets. Warm-up times are typically much faster.
9. Ensure the correct ID code is selected in Set-up -> alarm menu
10. If this is a first-time startup, the “Detect New Cartridge ~” message could be displayed. Press the ‘O’ button to clear the
    message.

Specifications

Physical:
Size (unit with Sensor cartridge)| 136 mm(H) x 83 mm(W) x 152 mm (D) (5.35 x 3.27 x 5.98 in)
Weight – Sensor cartridge| 0.17 ~ 0.22 kg (0.38 ~ 0.49 lb) dependent on sensor type
Optional Relay Dimensions:
Size| 137 mm (H) X 84 mm (W) X 41 mm (D) (5.39 X 3.31 X 1.61 in)
Weight| 0.31 kg (0.68 lb)
Power Requirements:
Operating Voltage| 24 VDC Nominal 15 to +10% (20.4 to 26.4 VDC)
Operating Voltage with  Power over
Ethernet (PoE)| 48 VDC PoE (IEEE 802.3af compliant)
Power Consumption:
Transmitter unit (normal condition)¹| Typ. 5W
Transmitter unit (full load condition)²| < 11.45W
Transmitter with optional relay| < 12.9 W
Outputs:
Visual| Alarm, power, fault LEDs, and LCD with all the gas readings and events. LEDs: Power(Green), Alarm 1 (Red), Alarm 2 (Red), Fault (Yellow)
Relays| Alarm1, Alarm2, Fault Relays (3) rated 1.0 A @ 30VDC or 1.0A @ 30Vdc or 0.5A @ 125Vac Max 10 uA @ 10 mV  minimum, configurable as normally open or closed, latched  or unlatched.
Analog| 3 wire sink, 3 wire source, or 4 wire fully isolated; 0 to 21 mA. for each channel.
DigitalCommunications| Modbus / TCP Ethernet / Power over Ethernet (PoE)
¹ Normal condition:
(1) No gas alarm
(2) Without tube and pressure/vacuum
²Full load condition:
(1) 4-ch gas alarms are on
(2) Maximum tubing length and pressure/vacuum on the inlet/exhaust line

Contact Us

Americas
Honeywell Analytics 405 Barclay Boulevard
Lincolnshire, IL 60069
Tel: +1 847 955 8200
Toll free: +1 800 538 0363
Fax: +1 847 955 8208
detectgas@honeywell.com| Asia Pacific, India.
Honeywell Analytics Asia Pacific, Co., Ltd.
7F Sangam IT Tower, 434 Worldcup Buk-ro, Mapo-gu, Seoul 03922, South Korea
Tel: +82 (0 2 6909 0300
Fax: +82 (0 2 2025 0388
India Tel: +91 124 4752 700
Analytics.ap@honeywell.com
---|---
Europe, Middle East, and Africa
Life Safety Distribution AG(LSD)
Javastrasse 2 8604 Hegna Switzerland
Tel: +41 (0)44 943 4300
Fax: +41 (0)44 943 4398
gasdetection@honeywell.com| Mainland China
Honeywell Industrial Safety Gas Detectors
Building#1, 555 Huanke Road Zhang Jiang
Hi-Tech Park Pudong New Area Shanghai
201203, China
Tel: 021-80386800
Fax: 021-60246070
gaschina@honeywell.com
Taiwan
Honeywell Taiwan Ltd
6F-2, No.8, ZiQiang S. Road, Jubei City,
30264 Taiwan
Tel: +886-3-5169284
Fax: +886-3-5169339
analytics.tw@honeywell.com

Manuals and other information about this product are available at:
www.honeywellanalytics.com/en/products/Midas-M

References

• Midas®-M multi gas detector | Honeywell

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