Detcon DM-600IS User Manual

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Detcon Model Series

TCON, Inc.

DM-600IS

Explosion Proof and Intrinsically Safe Toxic Gas Sensors

Operator’s Installation and Instruction Manual

4055 Technology Forest Blvd. Suite 100,

The Woodlands, Texas 77381

Ph.281.367.4100 / Fax 281.298.2868

www.detcon.com

January10, 2013 • Document #2448 • Revision 1.5.9

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DM-600IS

DM-600IS Instruction Manual ii

DM-600IS

Table of Contents

1.0 DESCRIPTION ..................................................................................................................................2

1.1 Sensor Technology..........................................................................................................................2

1.2 Universal Microprocessor Control Transmitter Circuit.....................................................................3

1.3 Base Connector Board .....................................................................................................................4

1.4 Explosion Proof Enclosure...............................................................................................................4

2.0 PRINCIPLE OF OPERATION..........................................................................................................5

3.0 APPLICATION..................................................................................................................................5

3.1 Sensor Placement/Mounting ............................................................................................................5

3.2 Interference Data.............................................................................................................................5

3.3 Interference Gas List........................................................................................................................6

3.4 Interference Gas Table (page 1 of 5) ................................................................................................7

4.0 SPECIFICATIONS ..........................................................................................................................12

5.0 INSTALLATION..............................................................................................................................13

5.1 Field Wiring Table (4-20 mA output).............................................................................................13

5.2 Sensor Location............................................................................................................................. 14

5.3 Local Electrical Codes................................................................................................................... 15

5.4 Installation Procedure....................................................................................................................16

5.5 Remote Mounting Applications ..................................................................................................... 19

6.0 STARTUP.........................................................................................................................................20

6.1 Initial Operational Tests.................................................................................................................21

7.0 OPERATING SOFTWARE & MAGNETIC INTERFACE...........................................................21

7.1 Normal Operation..........................................................................................................................22

7.2 Calibration Mode........................................................................................................................... 22

7.2.1 Zero Adjustment.....................................................................................................................22

7.2.2 Span Adjustment .................................................................................................................... 22

7.3 Program Mode............................................................................................................................... 22

7.3.1 Program Status......................................................................................................................22

7.3.2 Alarm 1 Level Adjustment ......................................................................................................23

7.3.3 Alarm 2 Level Adjustment ......................................................................................................23

7.3.4 Calibration Level Adjustment.................................................................................................23

7.4 Programming Magnet Operating Instructions.................................................................................23

8.0 Software Flow Chart.........................................................................................................................24

9.0 Calibration........................................................................................................................................25

9.1 Calibration Procedure - Zero.......................................................................................................... 25

9.2 Calibration Procedure - Span .........................................................................................................25

9.3 Additional Notes............................................................................................................................26

9.4 Calibration Frequency.................................................................................................................... 27

10.0 STATUS OF PROGRAMMING: SOFTWARE VERSION, ALARMS, CALIBRATION LEVEL,

RS-485 ID, AND SENSOR LIFE................................................................................................................27

11.0 PROGRAMMING ALARMS ..........................................................................................................28

11.1 Alarm Levels.................................................................................................................................28

11.2 Alarm Reset................................................................................................................................... 28

11.3 Other Alarm Functions .................................................................................................................. 28

12.0 PROGRAM FEATURES .................................................................................................................29

DM-600IS Instruction Manual iii

DM-600IS

13.0 UNIVERSAL TRANSMITTER FEATURE (RE-INITIALIZATION)...........................................29

14.0 RS-485 PROTOCOL.........................................................................................................................30

15.0 DISPLAY CONTRAST ADJUST.....................................................................................................33

16.0 TROUBLE SHOOTING...................................................................................................................33

17.0 SPARE PARTS LIST........................................................................................................................35

18.0 WARRANTY.....................................................................................................................................37

19.0 SERVICE POLICY...........................................................................................................................37

20.0 Revision History................................................................................................................................37

Table of Figures

Figure 1 Construction of Electrochemical Sensor......................................................................................... 3

Figure 2 Universal Microprocessor Control Transmitter Circuit................................................................... 3

Figure 3 Base connector board..................................................................................................................... 4

Figure 4 Explosion-Proof Enclosure ............................................................................................................ 4

Figure 5 Functional Block Diagram............................................................................................................. 5

Figure 6 Typical Installation........................................................................................................................ 15

Figure 7 Typical Outline and Mounting Dimensions.................................................................................... 16

Figure 8 Jumper Tab Positions on Term Board ............................................................................................ 17

Figure 9 Alarm Programming Jumpers ........................................................................................................ 17

Figure 10 RS-485 ID set Dip Switches......................................................................................................... 18

Figure 11 Remote Mount wiring.................................................................................................................. 20

Figure 12 Programming Magnet .................................................................................................................. 23

Figure 13 Universal Microprocessor Control Transmitter Circuit................................................................. 23

Figure 14 Software Flow Chart.................................................................................................................... 24

Figure 15 Spare parts diagram ..................................................................................................................... 35

List of Tables

Table 1 Model #, Gas Name, and Symbol.................................................................................................... 1

Table 2 Sensor cell specifications................................................................................................................ 12

Table 3 Field wiring Table........................................................................................................................... 13

Table 4 Over-current Protection per AWG................................................................................................... 13

Table 5 RS-485 Rotary Dip Switch Settings................................................................................................. 19

Table 6 Replacement IS Sensor Head / Plug-in Replacement Sensor Cell..................................................... 36

Shipping Address 4055 Technology Forest Blvd. Suite 100,., The Woodlands Texas 77381

Phone: 888.367.4286, 281.367.4100 • Fax: 281.292.2860 • www.detcon.com • sales@detcon.com

Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067

DM-600IS Instruction Manual iv

This manual covers the following Models...

Model #

Gas Name

Symbol

DM-600-C2H3

Acetaldehyde

C2H3O

DM-600-C2H2

Acetylene

C2H2

DM-600-C3H3N

Acrylonitrile

C3H3N

DM-600-NH3 (

20°C)

Ammonia

NH3

DM-501-NH3 (

40°C)

Ammonia

NH3

DM-502-NH3

Ammonia (continuous exposure)

NH3

DM-600-AsH3

Arsine

AsH3

DM-600-Br2

Bromine

Br2DM-

600-C4H6

Butadiene

C4H6

DM-600-CS2

Carbon Disulfide

CS2DM-

600-CO

Carbon Monoxide

CODM-

600-COS

Carbonyl Sulfide

COS

DM-600-CL2

Chlorine

CL2DM-

600-CLO2

Chlorine Dioxide (>50 ppm range)

CLO2

DM-501-CLO2

Chlorine Dioxide (

≤50 ppm range)

CLO2

DM-600-B2H6

borane

B2H6

DM-600-C2H6S

Dimethyl Sulfide

C2H6S

DM-600-C3H5OCL

Epichlorohydrin

C3H5OCL

DM-600-C2H5OH

Ethanol

C2H5OH

DM-600-C2H5SH

Ethyl Mercaptan

C2H5SH

DM-600-C2H4

Ethylene

C2H4

DM-600-C2H4O

Ethylene Oxide

C2H4O

DM-600-F2

Fluorine

F2DM-

600-CH2O

ormaldehyde

CH2O

DM-600-GeH4

Germane

GeH4

DM-600-N2H4

Hydrazine

N2H4

DM-600-H2

Hydrogen (ppm range)

H2DM-

501-H2

Hydrogen (% LEL range)

H2DM-

600-HBr

Hydrogen Bromide

HBrDM-

600-HCL

Hydrogen Chloride

HCL

DM-600-HCN

Hydrogen Cyanide

HCN

DM-600-HF

Hydrogen Fluoride

HFDM-

600-H2S

Hydrogen Sulfide

H2SDM-

600-CH3OH

Methanol

CH3OH

DM-600-CH3SH

Methyl Mercaptan

CH3SH

DM-600-NO

Nitric Oxide

NODM-

600-NO2

Nitrogen Dioxide

NO2

DM-600-O3

Ozone

O3DM-

600-COCL2

Phosgene

COCL2

DM-600-PH3

Phosphine

PH3DM-

600-SiH4

Silane

SiH4

DM-600-SO2

Sulfur Dioxide

SO2DM-

600-C4H8S

Tetrahydrothiophene

C4H8S

DM-600-C4H4S

Thiophane

C4H4S

DM-600-C6H5CH3

Toluene

C6H5CH3

DM-600-C4H6O2

Vinyl Acetate

C4H6O2

DM-600-C2H3CL

Vinyl Chloride

C2H3CL

Table 1 Model #, Gas Name, and Symbol

DM-600IS

DM-600IS Instruction Manual Rev 1.5.9 Page 1 of 37

DM-600IS

◄

Intrinsically Safe

1.0 DESCRIPTION

Detcon MicroSafe™ Model DM600IS, toxic sensors are nonintrusive “Smart” sensors designed to detect and monitor for toxic gas in the ppm range. One of the primary features of the sensor is its method of automatic calibration which guides the user through each step via instructions displayed on the backlit LCD. The sensor features LED indicators for 2 ALARMS, FAULT and CAL status, field adjustable, fully programmable alarms and provides relays for two alarms plus fault as standard. The sensor comes with two different outputs: analog 4-20 mA, and serial RS-485. These outputs allow for greater flexibility in system integration and installation. The microprocessor supervised electronics are packaged as a universal plugin transmitter module that mates to a standard connector board. Both are housed in an explosion proof condulet that includes a glass lens. A 16 character alpha/numeric indicator is used to display sensor readings as well as the sensor’s menu driven features via a handheld programming magnet.

Typical ranges of detection are 0-10ppm, 0-25ppm, 0-50ppm, and 0-100ppm. Other ranges are available and all ranges are covered by this manual. To determine sensor model number, reference the label located on the enclosure cover.

Sensor Head

To determine gas type and range, reference labeling on the intrinsically-safe sensor head.

1.1 Sensor Technology

The sensors are electrolytic chemical cells. Each cell consists of three electrodes embedded in an electrolyte solution all housed beneath a diffusion membrane. Sensitivity to specific target gases is achieved by varying composition of any combination of the sensor components. Good specificity is achieved in each sensor type. The cells are diffusion limited via small capillary barriers resulting in long service life of up to 3 or more years. The fuel cell is packaged as field replaceable plug-in sensor via gold plated pins. Pre-amplifier and intrinsically safe barrier circuits are epoxy potted in the stainless steel housing and include the mating sockets for the sensor.

DM-600IS Instruction Manual Rev 1.5.9 Page 2 of 37

DM-600IS

Figure 1 Constructionof Electrochemical Sensor

1.2 Universal Microprocessor Control Transmitter Circuit

The control circuit is microprocessor based and is packaged as a universal plug-in field replaceable module, facilitating easy replacement and minimum down time. The universality includes the ability to set it for any range concentration and for any gas type. These gas and range settings must be consistent with the IS Sensor Head it is mated with. Circuit functions include a basic sensor pre-amplifier, on-board power supplies, microprocessor, back lit alpha numeric display, fault, alarm, and calibration status LED indicators, magnetic programming switches, an RS-485 communication port, and a linear 4-20 mA DC output.

Figure 2 Universal Microprocessor Control Transmitter Circuit

DM-600IS Instruction Manual Rev 1.5.9 Page 3 of 37

DM-600IS

1.3 Base Connector Board

The base connector board is mounted in the explosion proof enclosure and includes: the mating connector for the control circuit, reverse input and secondary transient suppression, input filter, alarm relays, lugless terminals for all field wiring, and a terminal strip for storing unused programming jumper tabs. The alarm relays are contact rated 5 amps @ 125 VAC, 5 amps @ 30 VDC and coil rated at 24 VDC. Gold plated program jumpers are used to select either the normally open or normally closed relay contacts.

NOTE: The yellow wire should not be connected and should be cut off!

Figure 3 Base connector board

1.4 Explosion Proof Enclosure

The transmitter electronics are packaged in a cast metal explosion proof enclosure. The enclosure is fitted with a threaded cover that has a glass lens window. Magnetic program switches located behind the transmitter module face plate are activated through the lens window via a hand-held magnetic programming tool allowing non-intrusive operator interface with the sensor. Calibration can be accomplished without removing the cover or declassifying the area. Electrical classification is Class 1; Groups B, C, D; Division 1 (explosion proof). The sensor housing section employs an Intrinsically Safe Barrier circuit which allows for the safe usage of plastic housing materials in the lower section. This design benefit avoids the requirement for stainless steel flame arrestors which reduce the sensitivity and response time to “active” gas species such as NH3, CL2, CLO2, and HCL...etc.

Transmitter Electronics in Explosion-Proof Housing

Intrinsically Safe Sensor Head

Figure 4 Explosion-Proof Enclosure

DM-600IS Instruction Manual Rev 1.5.9 Page 4 of 37

DM-600IS

NOTE

: Interference factors may differ from sensor to sensor and with life time. I

t is not

2.0 PRINCIPLE OF OPERATION

Method of detection is by an electrochemical reaction at the surface of an electrode called the sensing electrode. Air and gas diffuse through the capillary diffusion barrier. The controlling circuit maintains a small external operating voltage between the sensing and counter electrodes of the proper bias and magnitude so that no current flows to or from the reference electrode while its potential is maintained at the correct fixed voltage — usually ground. The electrochemical reaction creates a change in current flow from the counter electrode to the sensing electrode. This change in current is proportional to the gas concentration and is reversible. The quick response of the sensor results in continuous monitoring of ambient air conditions. The Intrinsically Safe Sensor Housing design allows direct contact of the target gas to the electrochemical sensor, thus maximizing response time, detectability and repeatability.

Figure 5 FunctionalBlock Diagram

3.0 APPLICATION

3.1 Sensor Placement/Mounting

Sensor location should be reviewed by facility engineering and safety personnel. Area leak sources and perimeter mounting are typically used to determine number and location of sensors. The sensors are generally located 2 - 4 feet above grade.

3.2 Interference Data

Detcon Model DM-600IS series electrochemical sensors are subject to interference from other gases. This interaction is shown in the table in section 3.4 as the relation between the amount of the interfering gas applied to the sensor, and the corresponding reading that will occur. All measurements are in ppm unless otherwise noted.

The table is laid out with the Model Number of each sensor in a column on the left side of the page. The interfering gases are listed in a row across the top of the page. Each page lists all Model Numbers but 5 pages are necessary to list all interfering gases, thus each page is a repeat of the full line of Detcon sensors. Be sure to reference each page to ascertain the full listing of interfering gases for a particular sensor.

As an example, the first listing shows that the Model DM-600IS-C2H30 acetaldehyde sensor will have an interference reading of 340 ppm if 40 ppm of C2H2 (Acetylene) is applied.

advisable to calibrate with interference gases. They should be used as a guide only

DM-600IS Instruction Manual Rev 1.5.9 Page 5 of 37

3.3 Interference Gas List

Gas Name

Symbol

Gas Name

Symbol

Acetaldehyde

C2H3O

Hydrocarbons

C-H’s

Acetylene

C2H2

Hydrocarbons (unsaturated)

C-H’s (u)

Acrylonitrile

C3H3N

Hydrogen

Alcohols

Hydrogen Bromide

HBr

Amines

Hydrogen Chloride

HCL

Ammonia

NH3

Hydrogen Cyanide

HCN

Arsenic Trifluoride

AsF3

Hydrogen Fluoride

Arsenic Pentafluoride

AsF5

Hydrogen Selenide

HSe

Arsine

AsH3

Hydrogen Sulfide

H2S

Boron Trifluoride

BF3

Iodine

Bromine

Br2

Isopropanol

C3H8O

Butadiene

C4H6

Methane

CH4

Buten

-1Buten

-1Methanol

CH3OH

Carbon Dioxide

CO2

Methyl

-Ethyl-K

etone

C4H8O

Carbon Disulfide

CS2

Methyl Mercaptan

CH3SH

Carbon Oxide Sulfide

COS

Nitric Oxi

deNOCarbon Monoxide

Nitrogen

Carbonyl Sulfide

COS

Nitrogen Dioxide

NO2

Chlorine

CL2

Ozone

Chlorine Dioxide

CLO2

Phosgene

COCL2

Chlorine Trifluoride

CLF3

Phosphine

PH3

Diborane

B2H6

Phosphorous Trifluoride

PF3

Dimethyl Sulfide

C2H6S

Silane

SiH4

Disilane

Si2H6

Silicon

Epichlorohydrin

C3H5OCL

Silicon Tetra Fluoride

SiF4

Ethanol

C2H5OH

Sulfur Dioxide

SO2

Ethyl Mercaptan

C2H5SH

Tetrahydrothiophene

C4H8S

Ethylene

C2H4

Thiophane

C4H4S

Ethylene Oxide

C2H4O

Toluene

C6H5CH3

Fluorine

Tun

gsten Hexafluoride

WF6

Formaldehyde

CH2O

Vinyl Acetate

C4H6O2

Germane

GeH4

Vinyl Chloride

C2H3CL

Hydrazine

N2H4

DM-600IS

DM-600IS Instruction Manual Rev 1.5.9 Page 6 of 37

DM-600IS

DM-600IS-C3H3N

DM-600IS-NH3(-

20°C)

DM-501IS-NH3(-

40°C)

DM-502IS-NH3 (CE)

DM-600IS-AsH3

DM-600IS-Br2

DM-600IS-C4H6

DM-600IS-CS2

DM-600IS-CO

DM-600IS-COS

DM-600IS-CL2

DM-600IS-CLO2 (>10ppm)

DM-501IS-CL

O2 (≤10ppm)

DM-600IS-B2H6

DM-600IS-C2H6S

DM-600IS-C3H5OCL

DM-600IS-C2H5OH

DM-600IS-C2H5SH

DM-600IS-C2H4

DM-600IS-C2H4O

DM-600IS-F2

DM-600IS-CH2O

DM-600IS-GeH4

DM-600IS-N2H4

200=0.04

n/d

DM-600IS-H2 (ppm

)

n/d

DM-501IS-H2 (LEL)

100=0

n/d

DM-600IS-HBr

n/d

DM-600IS-HCL

n/d

DM-600IS-HCN

n/d

DM-600IS-H

n/d

yes

n/d

DM-600IS-H2S

n/d

DM-600IS-CH3OH

n/d

DM-600IS-C

H3SH

n/d

DM-600IS-NO

n/d

DM-600IS-NO2

n/d

DM-600IS-O3

n/d

DM-600IS-COCL2

50=0.5

n/d

DM-600IS-PH3

100=0.01

n/d

DM-600IS-SiH4

100=<1

n/d

DM-600IS-SO2

n/d

DM-600IS-C4H8S

n/d

DM-600IS-C4H4S

n/d

DM-600IS-C6H5CH3

n/d

DM-600IS-C4H6O2

n/d

DM-600IS-C2H3CL

n/d

3.4 Interference Gas Table (page 1 of 5)

NOTE: Reference the listing in Section 3.3 to match model number with gas name. Reference the listing in

section 3.3 to match the interfering gas symbol with the gas name.

Model Number C2H30 C2H2 C3H3N Alcohols Amines NH3 AsF3 AsF5 AsH3 BF3 Br2 C4H6 Buten-1

DM-600IS-C2H3O n/a 40=340 40=75 n/d n/d n/d n/d n/d n/d n/d n/d 40=170 n/d DM-600IS-C2H2 340=40 n/a 340=75 n/d n/d n/d n/d n/d n/d n/d n/d 340=170 n/d

75=40 75=340 n/d n/d n/d n/d n/d n/d n/d n/d n/d 75=170 n/d

n/d n/d n/d 1000=0 yes n/d n/a n/d n/d 1=0 n/d n/d n/d n/d n/d n/d n/d n/d yes n/d n/d n/d n/d 1=0 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 100=0.01 n/d n/a n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/a n/d n/d 170=40 170=340 170=75 n/d n/d n/d n/d n/d n/d n/d n/d n/a n/d 140=40 140=340 140=75 n/d n/d n/d n/d n/d n/d n/d n/d 140=170 n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 135=40 135=340 135=75 n/d n/d n/d n/d n/d n/d n/d n/d 135=170 n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 1=0.55 n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 1=0.18 n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d 100=0.013 n/d n/d 0.15=0.2 n/d n/d n/d n/d 150=40 150=340 150=75 n/d n/d n/d n/d n/d n/d n/d n/d 150=170 n/d

50=40 50=340 50=75 n/d n/d n/d n/d n/d n/d n/d n/d 50=170 n/d

180=40 180=340 180=75 n/d n/d n/d n/d n/d n/d n/d n/d 180=170 n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 220=40 220=340 220=75 n/d n/d n/d n/d n/d n/d n/d n/d 220=170 n/d 275=40 275=340 275=75 n/d n/d n/d n/d n/d n/d n/d n/d 275=170 n/d

n/d n/d n/d 1000=0 n/d n/d n/d n/d 0.1=0 n/d yes n/d n/d n/d 330=40 330=340 330=75 n/d n/d n/d n/d n/d n/d n/d n/d 330=170 n/d

n/d n/d n/d n/d n/d 100=<1 n/d n/d 0.2=0.14 n/d n/d n/d n/d

n/d n/d n/d 1000=0 n/d

n/d n/d n/d n/d n/d

n/d n/d n/d 1000=0 No

n/d n/d n/d 1000=0 n/d

n/d n/d n/d n/d n/d 415=40 415=340 415=75 n/d n/d

n/d n/d n/d n/d n/d

n/d n/d n/d 1000=0 n/d

n/d n/d n/d n/d n/d

45=40 45=340 45=75 n/d n/d

55=40 55=340 55=75 n/d n/d 200=40 200=340 200=75 n/d n/d 200=40 200=340 200=75 n/d n/d

n/a = not applicable n/d = no data

n/d 0.1=0.1 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 0.1=0.3 n/d n/d n/d n/d n/d 0.1=0.3 n/d n/d n/d n/d n/d 0.1=0 n/d yes n/d n/d n/d

yes n/d 0.1=0 yes n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 415=170 n/d n/d n/d n/d n/d 275=170 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 0.1=0.05 n/d yes n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 1=1 n/d n/d n/d n/d n/d 0.2=0.14 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 45=170 1%=1.8 n/d n/d n/d n/d 55=170 n/d n/d n/d n/d n/d 200=170 n/d n/d n/d n/d n/d 200=170 n/d

DM-600IS Instruction Manual Rev 1.5.9 Page 7 of 37

DM-600IS

DM-600IS-C3H3N

DM-600IS-NH3

DM-501IS-NH3

DM-502IS-NH3 (CE)

DM-600IS-AsH3

DM-600IS-Br2

DM-600IS-C4H6

DM-600IS-CS2

DM-600IS-CO

DM-600IS-COS

DM-600IS-CL2

DM-600IS-CLO2 (>10ppm)

DM-501IS-CLO2 (

≤

10ppm)

DM-600IS-B2H6

DM-600IS-C2H6S

DM-600IS-C3H5OCL

DM-600IS-C2H5OH

DM-600IS-C2H5SH

DM-600IS-C2H4

DM-600IS-C2H4O

DM-600IS-F2

DM-600IS-CH2O

DM-600IS-GeH4

DM-600IS-N2H4

n/d

DM-600IS-H2 (ppm

)

n/d

DM-6

01IS-H2 (LEL)

n/d

DM-600IS-HBr

n/d

yes n

DM-600IS-HCL

n/d

1=yes n/d

DM-600IS-HCN

n/d

DM-600IS-H

n/d

yes

n/d

DM-600IS-H2S

n/d

DM-600IS-CH3OH

n/d

DM-600IS-CH3SH

n/d

DM-600IS-NO

n/d

DM-600IS-NO2

n/d

DM-600IS-O3

0.1=0.12

1=1(theor.)

DM-600IS-COCL2

n/d

DM-600IS-PH3

n/d

DM-600IS-SiH4

300=0

n/d

DM-600IS-SO2

300=

n/d

DM-600IS-C4H8S

n/d

DM-600IS-C4H4S

n/d

DM-600IS-C6H5CH3

n/d

DM-600IS-C4H6O2

n/d

DM-600IS-C2H3CL

n/d

Interference Gas Table (page 2 of 5)

Model Number CO2 CS2 CO COS CL2 CL02 CLF3 B2H6 C2H6S Si2H6 C3H5OCL C2H5OH

DM-600IS-C2H3O n/d 40=140 40=100 40=135 n/d n/d n/d n/d 40=150 n/d 40=50 40=180 DM-600IS-C2H2 n/d 340=140 340=100 340=135 n/d n/d n/d n/d 340=150 n/d 340=50 340=180

n/d 75=140 75=100 75=135 n/d n/d n/d n/d 75=150 n/d 75=50 75=180

(-20°C)

(-40°C)

n/a = not applicable n/d = no data

5000=0 n/d 1000=0 n/d 1=0 n/d n/d 0.1=0 n/d n/d n/d n/d

5000=0 n/d 300=100 n/d 5=0 n/d n/d 0.1=0 n/d n/d n/d n/d

n/d n/d 300=8 n/d 1=1 10%=15 n/d n/d n/d n/d n/d n/d

5000=0 n/d 300=0 n/d 0.5 = -0.04 n/d n/d 0.2=0.15 n/d 5=yes n/d n/d n/d

n/d n/d 300=0 n/d 1=2 1=6 n/d n/d n/d n/d n/a n/d n/d 170=140 170=100 170=135 n/d n/d n/d n/d 170=150 n/d 170=50 170=180 n/d n/a 140=100 140=135 n/d n/d n/d n/d 140=150 n/d 140=50 140=180 n/d n/d n/a n/d 1=0 n/d n/d n/d n/d n/d n/d 200=0 n/d 135=140 135=100 n/a n/d n/d n/d n/d 135=150 n/d 135=50 135=180 n/d n/d 300=0 n/d n/a n/d n/d n/d n/d n/d n/d n/d

n/d n/d 300=0 n/d 3=1 n/a n/d n/d n/d n/d n/d n/d 5000=0 n/d 1000=0 n/d 1=0.9 n/a yes n/d 0.1=0 n/d n/d n/d n/d 5000=0 n/d 300=0 n/d 0.5 = -0.05 n/d n/d n/a n/d 5=yes n/d n/d n/d

n/d 150=140 150=100 150=135 n/d n/d n/d n/d n/a n/d 150=50 150=180

n/d 50=140 50=100 50=135 n/d n/d n/d n/d 50=150 n/d n/a 50=180

n/d 180=140 180=100 180=135 n/d n/d n/d n/d 180=150 n/d 180=50 n/a

n/d n/d 300≤5 n/d 1 = -0.6 n/d n/d n/d n/d n/d n/d n/d

n/d 220=140 220=100 220=135 n/d n/d n/d n/d 220=150 n/d 220=50 220=180

n/d 275=140 275=100 275=135 n/d n/d n/d n/d 275=150 n/d 275=50 275=180 5000=0 n/d 1000=0 n/d 1=1.3 n/d n/d n/d n/d n/d n/d n/d

n/d 330=140 330=100 330=135 n/d n/d n/d n/d 330=150 n/d 330=50 330=180 5000=0 n/d 300=0 n/d 0.5 = -0.04 n/d n/d 0.2=0.11 n/d 5=yes n/d n/d n/d 5000=0 n/d 1000=0 n/d 1=0

n/d n/d 300=<30 n/d 1=0

1000-0 n/d 50=6 n/d 5=0 5000=0 n/d 1000=0 n/d 5=1 5000=0 n/d 1000=0 n/d 5=1 5000=0 n/d 1000=0 n/d 5 = -1 5000=0 n/d 1000=0 n/d 1=0.4

n/d n/d 300=≤1.5 n/d 1 = ≈ -0.2 n/d 415=140 415=100 415=135 n/d n/d n/d 300 ≤ 3 n/d 1 = -0.4 n/d n/d 300=0 n/d 1=0

n/d n/d 300=0 n/d 1= ≈1

5000=0 n/d 300=0 n/d 1=1.4 5000=0 n/d 1000=0 n/d 1=0 5000=0 n/d 300=0 n/d 0.5 = -0.04 5000=0 n/d

n/d n/d

5000=0 n/d 0.1%=1.2 1%=10 n/d

n/d 45=140 45=100 45=135 n/d n/d 55=140 55=100 55=135 n/d n/d 200=140 200=100 200=135 n/d n/d 200=140 200=100 200=135 n/d

n/d 0.5 = -0.04 n/d 1=<0.5

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

0.1=0 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 415=150 n/d 415=50 415=180 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

0.2=0.15 n/d 5=yes n/d n/d n/d

0.2=0.11 n/d 5=yes n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 45=150 n/d 45=50 45=180 n/d 55=150 n/d 55=50 55=180 n/d 200=150 n/d 200=50 200=180 n/d 200=150 n/d 200=50 200=180

DM-600IS Instruction Manual Rev 1.5.9 Page 8 of 37

Interference Gas Table (page 3 of 5)

DM-600IS-C3H3N

DM-

600IS-NH3(-

20°C)

n/d

DM-501IS-NH3(-

40°C)

yes

n/d

DM-502IS-NH3 (CE)

DM-600IS-AsH3

5=0

DM-600IS-Br2

5=0

DM-600IS-C4H6

DM-600IS-CS2

DM-600IS-CO

DM-600IS-COS

DM-600IS-CL2

5=0

10=0

DM-600IS-CLO2 (>10ppm)

5=0

10=0

DM-501IS-CLO2 (

≤

10ppm)

n/d

DM-600IS-B2H6

n/d

DM-600IS-C2H6S

DM-600IS-C3H5OCL

DM-600IS-C2H5OH

DM-600IS-C2H5SH

DM-600IS-C2H4

DM-600IS-C2H4O

DM-600IS-F2

n/d

DM-600IS-CH2O

n/d

DM-600IS-GeH4

n/d

5=0

DM-600IS-N2H4

n/d

%range=0

n/d

5=0

DM-600IS-H2 (ppm

)

n/d

5=0

DM-501IS-H2 (LEL)

n/d

DM-600IS-HBr

n/d

%range=0

n/d

1%=0

15=

DM-600IS-HCL

n/d

%range=0

n/d

1%=0

15=

DM-600IS-HCN

n/d

%range=0

n/d1000=0

5=0

DM-600IS-H

n/d

%range=0

n/d

3.3

DM-600IS-H2S

n/d

5=0

DM-600IS-CH3OH

n/d

DM-600IS-

CH3SH

n/d

5=0

10=0

DM-600IS-NO

n/d

5=<110=0

DM-600IS-NO2

n/d

5=0

10=0

DM-600IS-O3

n/d

n/dn/d

DM-600IS-COCL2

n/d

%range=0

n/d

5=0

DM-600IS-PH3

n/d

%range=0

n/d

5=0

10=0

DM-600IS-SiH4

n/d

%range=0

n/d

5=010=

DM-600IS-SO2

n/d

5=0

10=

DM-600IS-C4H8S

n/d

%range=0

yes

n/d

DM-600IS-C4H4S

n/d

DM-600IS-C6H5CH3

n/d

DM-600IS-C4H6O2

n/d

DM-600IS-C2H3CL

n/d

Model Number C2H4 C2H4O F2 CH2O GeH4 N2H4 C-H’s C-H’s (U) H2 HBr HCL HCN HF

DM-600IS-C2H3O 40=220 40=275 n/d 40=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d DM-600IS-C2H2 340=220 340=275 n/d 340=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d

75=220 75=275 n/d 75=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d 1=0 n/d %range=0 n/d n/d n/d n/d 1=0 n/d %range=0

100=0 n/d n/d n/d n/d n/d n/d n/d 200=4 n/d 5 = -3 10=0 n/d

n/d n/d n/d n/d 1=0.4 n/d %range=0 n/d 3000=0 n/d

100=0 n/d n/d n/d n/d n/d n/d n/d 100=0 n/d 170=220 170=275 n/d 170=330 n/d n/d n/d n/d n/d n/d n/d n/d n/a 140=220 140=275 n/d 140=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d

100=<100 n/d n/d n/d n/d n/d n/d n/d 100 = <60 n/d 5=0 10 = -2 n/d

135=220 135=275 n/d 135=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d

100=0 n/d n/d n/d n/d n/d n/d n/d 100=0 n/d

n/d n/d yes n/d n/d 1=0 n/d %range=0 n/d n/d n/d n/d 1=0.53 n/d %range=0

150=220 150=275 n/d 150=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d

50=220 50=275 n/d 50=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d

180=220 180=275 n/d 180=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d

100=0 n/d n/d n/d n/d n/d n/d n/d 1%=<15 n/d 5=0 10=0 n/d

n/d 220=275 n/d 220=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d

275=200 n/a n/d 275=330 n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/a n/d n/d n/d %range=0

330=220 330=275 n/d n/a n/d n/d n/d

n/d n/d n/d n/d n/a n/d %range=0 n/d n/d n/d n/d n/d

100= ≈80 n/d n/d n/d n/d

yes n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d 1=n/d n/d n/d n/d n/d n/d n/d n/d yes n/d n/d 1=0

100=0 n/d n/d n/d n/d 415=220 415=275 n/d 415=330 n/d

100=0 n/d n/d n/d n/d

n/d n/d 0.1=0.07 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 1=0.4 n/d n/d n/d n/d 1=1.0

100=0 n/d n/d n/d n/d

1%=2.4 n/d n/d n/d n/d 45=220 45=275 n/d 45=330 n/d

55=220 55=275 n/d 55=330 n/d 200=220 200=275 n/d 200=330 n/d 200=220 200=275 n/d 200=330 n/d

n/a = not applicable n/d = no data

1%=0 n/d 5=0 10=0 4=0

1000=35 n/d yes n/d 10 = -18 n/d

1%=0 n/d n/d n/d n/d

3000=0 n/d 5=0 10=0.13 4=0

1%=0 n/d 5=0 1 = -3 3=0

n/d n/d n/d n/d n/d 3000=0 n/d 1000=0 n/d

n/d n/d

n/d n/d n/d 10=0 n/d

n/a 1=1

1=1 n/a

n/d

1%=0 n/d

1%=<5 n/d

n/d n/d n/d n/d n/d

1%=<10 n/d

100=0 n/d 100=0 n/d

1%=0.003 n/d

1%=0 n/d 3000=0 n/d 3000=0 n/d

100=0 n/d

0.1%=0.3 n/d yes n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

DM-600IS

10=0.1 4=0

10=0 n/d

n/d n/d

10=1 4=0

n/d 3=0

10 = ≈3 n/d

3=0

3=0 n/a 3=0 n/d n/a

10=0 n/d

n/d n/d n/d

10=0.33 5=0

5=0 3=0

4=0

n/d

DM-600IS Instruction Manual Rev 1.5.9 Page 9 of 37

DM-600IS

DM-600IS-C3H3N

DM-600IS-NH3(-

20°C)

DM-501IS-NH3(-

40°C)

DM-502IS-NH3 (CE)

DM-600IS-AsH3

DM-600IS-Br2

DM-600IS-C4H6

170

=275

DM-600IS-CS2

140

=275

DM-600IS-CO

DM-600IS-COS

DM-600IS-CL2

=-0.75

35=

DM-600IS-CLO2 (>10ppm)

15=

0.25

DM-501IS-CLO2 (

≤

10ppm)

DM-600IS-B2H6

DM-600IS-C2H6S

150

=415

DM-600IS-C3H5OCL

=415

=275

DM-600IS-C2

H5OH

180

=415

180

=275

DM-600IS-C2H5SH

n/d

DM-600IS-C2H4

220

=415

220

=275

DM-600IS-C2H4O

275

=415

275

=275

DM-600IS-F2

n/d

DM-600IS-CH2O

330

=415

DM-600IS-GeH4

1=0

100%=0

DM-600IS-N2H4

1=0

n/d

100%=0

DM-600IS-H2 (ppm

)

15=

n/d

DM-501IS-H2 (LEL)

n/d

DM-600IS-HBr

10=

2.75

n/d

100%=0

DM-600IS-HCL

10=

2.75

n/d

100%=0

DM-600IS-HCN

10=0

n/d

100%=0

DM-600IS-H

10=0

n/d

100%=0

DM-600IS-H2S

n/d

DM-600IS-CH3OH

n/d

DM-600IS-CH3SH

n/d

5 =-1.0

DM-600IS-NO

15=

≈5

n/d

5 =

<1.5

DM-600IS-NO2

15=-0.75

n/d

DM-600IS-O3

=-015

n/d

100%=0

DM-600IS-COCL2

1=0

n/d

100%=0

DM-600IS-PH3

1=0

n/d

100%=0

DM-600IS-SiH4

1=0

n/d

100%=0

DM-600IS-SO2

15=0

n/d

35=

DM-600IS-

C4H8S

20=0.3

1300=64

n/d

10=7.5

DM-600IS-C4H4S

=415

n/d45=275

DM-600IS-C6H5CH3

=415

n/d55=275

DM-600IS-C4H6O2

200

=415

n/d

200=27

DM-600IS-C2H3CL

200

=415

n/d

200=27

Interference Gas Table (page 4 of 5)

Model Number HSe H2S I2 C3H8O CH4 CH3OH C4H8O CH3SH NO N2 NO2 03 COCL2

DM-600IS-C2H3O n/d n/d n/d n/d n/d 40=415 n/d 40=275 n/d n/d n/d n/d n/d DM-600IS-C2H2 n/d n/d n/d n/d n/d 340=415 n/d 340=275 n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d 75=415 n/d 75=275 n/d n/d n/d n/d n/d

0.1=0 10=0 n/d n/d n/d n/d n/d n/d n/d 100%=0 n/d n/d n/d

n/d 14=18 n/d n/d n/d yes n/d n/d n/d n/d 100%=0 10 = -5 n/d n/d n/d 15=30 n/d n/d n/d n/d n/d n/d 35=6 n/d 5 = -1 n/d n/d

0.05=0.005 1=0 n/d n/d n/d n/d n/d n/d n/d 100%=0 n/d n/d n/d

n/d 15 = -1.5 n/d n/d n/d n/d n/d n/d 35=0 n/d 5 = ≈10 n/d n/d

n/a = not applicable n/d = no data

n/d n/d n/d n/d n/d 170=415 n/d n/d n/d n/d n/d n/d 140=415 n/d

n/d 15=<0.3 n/d n/d n/d n/d n/d n/d 35=≤7 n/d 5=0.5 n/d n/d

n/d n/d n/d n/d n/d 135=415 n/d 135=275 n/d n/d n/d n/d n/d n/d n/d n/d 10= -0.015 n/d n/d n/d n/d n/d n/d n/d n/d yes n/d yes n/d n/d

0.05=0.006 1=0 n/d n/d n/d n/d n/d n/d n/d 100%=0 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 1:3 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 1 = -1.5 n/d n/d n/d n/d n/d n/d n/d n/d

0.05=0.005 n/d n/d n/d

0.1=0

0.1=0 n/d n/d n/d n/a n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 1:2 n/d n/d n/d n/d n/d n/d n/d n/d

0.05=0.005

0.05=0.005 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 35=0 n/d 5=1.66 n/d n/d

n/d 1:15 n/d n/d n/d n/d n/d n/d n/d n/d 5=8 35=<6 n/d 5 = -1.5 n/d n/d n/d n/d n/d n/d n/d 100%=0 1=0.05 0.1=0.2 n/d

n/d 330=275 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d yes n/d 1%=0 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d

yes n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 100%=0

n/d n/d n/d 35= ≈10 n/d 5=0 n/d n/d n/d yes n/d n/d 10=0 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 2:1 35=<2 n/d 5 = -0.5 n/d n/d

415=275 n/d n/d n/d n/d n/d

n/a 35=<4 n/d n/d 100=0 n/d n/d 35=0 n/d n/d n/d n/d n/d 10=0 n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d 5 = ≈5 n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d

1 = -0.25 0.1 = -0.1 n/d

n/d n/d 0.1=0 n/d n/d 0.1=0

10 = -12 0.1=0 n/d

10=0.1 n/d n/d

n/d n/d n/d n/d

1=0.7 n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d 5 = ≈ -5 n/d n/d

100%=0 10=0.9 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

DM-600IS Instruction Manual Rev 1.5.9 Page 10 of 37

DM-600IS

DM-600IS-C3H3N

DM-60

0IS-NH3

DM-501IS-NH3

DM-502IS-NH3 (CE)

DM-600IS-AsH3

DM-600IS-Br2

DM-600IS-C4H6

0=45

170=55DM-

600IS-CS2

40=45

40=55DM-600IS-CO

DM-600IS-COS

DM-600IS-CL2

DM-600IS-CLO2

DM-501IS-CLO2

DM-600IS-B2H6

DM-600IS-C2H6S

150=45

150=55DM-

600IS-C3H5OCL

50=45

50=55DM-

600IS-C2H5OH

180=45

180=55DM-

600IS-C2H5SH

DM-600IS-C2H4

0=45

220=55DM-

600IS-C2H4O

275

=45

275=55DM-

600IS-F2

DM-600IS-CH2O

DM-600IS-GeH4

DM-600IS-N2H4

2=0

n/d

n/dDM-

600IS-H2 (ppm

)

n/d

n/dDM-

501IS-H2 (LEL)

2=0

n/d

n/dDM-

600IS-HBr

5=2.5

n/d

n/dDM-

600IS-HCL

5=2.5

n/d

n/dDM-

600IS-HCN

2=0

n/d

n/dDM-

600IS-H

yes

n/d

n/dDM-

600IS-H2S

5=<1

n/d

n/dDM-

600IS-CH3OH

n/d

415=45

415=55

DM-600IS-CH3SH

5=<2

n/d

n/dDM-

600IS-NO

n/d

n/dDM-

600IS-NO2

=-0.025

n/d

n/dDM-

600IS-O3

2=0

n/d

n/dDM-

600IS-COCL2

2=0

n/d

n/dDM-

600IS-PH3

2=0

n/d

n/dDM-

600IS-SiH4

2=0

n/d

n/dDM-

600IS-SO2

n/d

n/dDM-

600IS-C4H8S

2=0.6

n/dDM-600IS-C4H4S

n/d

45=55

DM-600IS-C6H5CH3

n/d

=45

n/a

DM-600IS-C4H6O2

n/d

0=45

200=55DM-

600IS-C2H3CL

n/d

0=45

200=55

Interference Gas Table (page 5 of 5)

Model Number PH3 PF3 SiH4 Si SiF4 SO2 C4H8S C4H4S C6H5CH3 WF6 C4H6O2 C2H3CL C2H5SH C6H5CH3

DM-600IS-C2H3O n/d n/d n/d n/d n/d n/d n/d 40=45 n/d n/d 40=200 40=200 n/d 40=55 DM-600IS-C2H2 n/d n/d n/d n/d n/d n/d n/d 340=45 n/d n/d 340=200 340=200 n/d 340=55

n/d n/d n/d n/d n/d n/d n/d 75=45 n/d n/d 75=200 75=200 n/d 75=55

(-20°C)

(-40°C)

(>10ppm)

(≤10ppm)

n/a = not applicable n/d = no data

300=0 n/d n/d n/d n/d 2=0 n/d n/d n/d n/d n/d n/d n/d n/d

0.3=0 n/d n/d n/d n/d yes n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d 5= -0.5 n/d n/d n/d n/d n/d n/d n/d n/d

0.1=0.11 n/d 1=0.56 n/d n/d 2=0 n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d 5= -0.1 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 5=0 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 135=45 n/d n/d 135=200 135=200 n/d 135=55 n/d n/d n/d n/d n/d 5=-0.05 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 5=-0.016 n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

0.1=0.14 n/d 1=0.72 n/d n/d 2=0 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 5=<3 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 2=0 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 330=45 n/d n/d 330=200 330=200 n/d 330=55

0.1=0.13 n/d 1=1 n/d n/d 2=0 n/d n/d n/d n/d n/d n/d n/d n/d

0.3=0.1 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

0.1=0.3 n/d n/d n/d n/d

0.3=0 n/d n/d n/d n/d

0.1=0 yes n/d n/d n/d 3=4 (theor.)

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

0.3=0.03 n/d 1=0.015 n/d n/d

0.3=0 n/d n/d n/d n/d

n/a n/d 1=0.56 n/d n/d

0.1=0.13 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d

n/d n/d 170=200 170=200 n/d n/d n/d 140=200 140=200 n/d

n/d n/d 150=200 150=200 n/d n/d n/d 50=200 50=200 n/d n/d n/d 180=200 180=200 n/d

n/d n/d 220=200 220=200 n/d n/d n/d 275=200 275=200 n/d

n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d yes n/d n/d n/d n/d

n/d n/d n/d n/d 3=1 n/d n/d 415=200 415=200 n/d n/d n/d n/d n/d 2=1 n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d n/d 45=200 45=200 n/d n/d n/d 55=200 n/d n/d n/d n/d n/a 200=200 n/d n/d n/d 200=200 n/a n/d

DM-600IS Instruction Manual Rev 1.5.9 Page 11 of 37

4.0 SPECIFICATIONS

3 relays (alarm 1, alarm 2, and fault) contact rated 5 amps @ 125 VAC,

± 2% FS

Model Number

Gas Name

Response

Span Drift

Temperature

Humidity

SensorCell

DM-500IS-C2H3O

Acetaldehyde

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-C2H2

Acetylene

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-C3H3N

Acrylonitrile

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-NH3(-20°C)

Ammonia

T90 <60

<1% signal loss/month

20 to +40

4 to +104

10 to 95

2 years

DM-501IS-NH3(-40°C)Ammonia

T90 <90

<2% signal loss/month

40 to +40

40 to +104

5 to 95

11/2

yearsDM-

502IS-NH3 (CE)

Ammonia

T90 <90

<2% signal loss/month

40 to +50

40 to +122

15 to 90

2 years

DM-500IS-AsH3

Arsine

T90 <60

<5% signal loss/month

20 to +40

4 to +104

20 to 95

11/2years

DM-500IS-Br2

Bromine

T90 <60

<2% signal loss/month

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-C4H6

Butadiene

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-CS2

Carbon Disulfide

T90 <140

<5% signal

loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-CO

Carbon Monoxide

T90≤30

<5% signal loss/year

40 to +50

40 to +122

15 to 90

3 years

DM-500IS-COS

Carbonyl Sulfide

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-

CL2

Chlorine

T90 <60

<2% signal loss/month

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-CLO2(>10ppm)

Chlorine Dioxide

T90 <60

<2% signal loss/month

20 to +50

4 to +122

15 to 90

2 years

DM-501IS-CLO2(≤10ppm)

Chlorine Dioxide

T90 <120

<1% signal l

oss/month

20 to +40

4 to +104

10 to 95

2 years

DM-500IS-B2H6

Diborane

T90 <60

<5% signal loss/month

20 to +40

4 to +104

20 to 95

11/2years

DM-500IS-C2H6S

Dimethyl Sulfide

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-

C3H5OCL

Epichlorohydrin

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-C2H5OH

Ethanol

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-C2H5SH

Ethyl Mercaptan

T90 <45

<2% signal loss/month

-40to +50-40 to +122

15 to 90

2 years

DM-500IS-C2H4

Ethylene

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-C2H4O

Ethylene Oxide

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-F2

Fluorine

T90 <80<5% signal loss/year

10 to +40

+14 to +104

10 to 95

11/2years

DM-500IS-CH2O

Formaldehyde

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-GeH4

Germane

T90 <60

<1% signal loss/month

20 to +40

4 to +104

20 to 95

11/2y

earsDM-

500IS-N2H4

Hydrazine

T90 <120

<5% signal loss/month

10 to +40

+14 to +104

10 to 95

1 yearDM-

500IS-H2 (ppm)

Hydrogen

T90≤30

<2% signal loss/month

20 to +50

4 to +122

15 to 90

2 years

DM-501IS-H2 (LEL)*

Hydrogen

T90 <60

<2% signal loss/month

40 to +40

40 to +104

5 to 95

2 years

DM-500IS-HBr

Hydrogen Bromide

T90 <70

<3% signal loss/month

20 to +40

4 to +104

10 to 95

11/2years

DM-500IS-HCL

Hydrogen Chloride

T90 <70

<2% signal loss/month

20 to +40

4 to +104

10 to 95

11/2years

DM-500IS-

HCN

Hydrogen Cyanide

T90 <40

<5% signal loss/month

40 to +40

40 to +104

5 to 95

2 years

DM-500IS-HF

Hydrogen Fluoride

T90 <90

<10% signal loss/month

20 to +35

4 to +95

10 to 80

11/2years

DM-500IS-H2S

Hydrogen Sulfide

T90≤30

<2% signal loss/month

40 to +50

40 to +122

15 to 90

2 years

DM-500IS-CH3OH

Methanol

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-CH3SH

Methyl Mercaptan

T90 <45

<2% signal loss/month

40 to +50

40 to +122

15 to 90

yearsDM-

500IS-NO

Nitric Oxide

T90≤10

<2% signal loss/month

20 to +50

4 to +122

15 to 90

3 years

DM-500IS-NO2

Nitrogen Dioxide

T90 <40

<2% signal loss/month

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-O3

Ozone

T90 <120

<1% signal loss/month

-10to +40

+14 to +104

10 to 95

2 years

DM-500IS-COCL2

Phosgene

T90 <120

<1% signal loss/month

20 to +40

4 to +104

10 to 95

11/2years

DM-500IS-PH3

Phosphine

T90 <30

<1% signal loss/month

20 to +40

4 to +104

20 to 95

11/2years

DM-500IS-SiH4

SilaneT90 <60

<1% signal loss/month

20 to +40

4 to +104

20 to 95

11/2years

DM-500IS-SO2

Sulfur Dioxide

T90≤20

<2% signal loss/month

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-C4H8S

Tetrahydrothiophene

T90 <30

<2% signal loss/month

10 to +40

+14 to +104

10 to 95

2 years

Method of Detection

Electrochemical Cell

Electrical Classification

CSA-NRTL (US OSHA) approved* Class 1; Groups B, C, D; Div. 1.

Input Voltage

22.5-28 VDC

Power Consumption

Normal operation = 44 mA (1.1 watts @ 24VDC); Maximum @ 24VDC = 120 mA (2.9 watts) Maximum @ 22.5VDC = 102 mA (2.3 watts)

Output

5 amps @ 30 VDC Linear 4-20 mA DC; RS-485 Modbus™

Repeatability

Table 2 Sensor cell specifications

DM-600IS

Time(seconds)

Range °C

Range °F

Range %

Warranty

DM-600IS Instruction Manual Rev 1.5.9 Page 12 of 37

DM-600IS

DM-500IS-C4H4S

Thiophane

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 9

2 years

DM-500IS-C6H5CH3

Toluene

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-C4H6O2

Vinyl Acetate

T90 <140

<5% signal loss/year

20 to +50

4 to +122

15 to 90

2 years

DM-500IS-C2H3CL

Vinyl Chloride

T90 <140

<5% signal

loss/year

20 to +50

4 to +122

15 to 90

2 years

AWG

Meters

Feet20240

80018360

1200

600

2000

900

3000

Note

: This wiring ta

ble is based on stranded tinned copper wire and is designed to serve as a

Note

2: Shielded cable may be required in installations where cable trays or conduit runs

Note

: The supply of power must be from an isolating source with over

current protection as

AWG

Over

current Protection

AWG

Over

current Protection

223A16

10A205A1420A187A1225A

*LELrangeH2isnot CSAapproved.

5.0 INSTALLATION

Optimum performance of ambient air/gas sensor devices is directly relative to proper location and installation practice.

5.1 Field Wiring Table (4-20 mA output)

Detcon Model DM-600IS toxic gas sensor assemblies require three conductor connection between power supplies and host electronic controllers. Wiring designators are + (DC), – (DC), and mA (sensor signal).

Maximum single conductor resistance between sensor and controller is 10 ohms. Maximum wire size for termination in the sensor assembly terminal board is 14 gauge.

Table 3 Field wiring Table

reference only.

include high voltage lines or other sources of induced interference.

follows:

Table 4 Over-current Protection per AWG

The RS-485 (if applicable) requires 24 gauge, two conductor, shielded, twisted pair cable between sensor and host PC. Use Belden part number 9841. Two sets of terminals are located on the connector board to facilitate

serial loop wiring from sensor to sensor. Wiring designators are A & B (IN) and A & B (OUT).

DM-600IS Instruction Manual Rev 1.5.9 Page 13 of 37

DM-600IS

Note:

In all installat

ions, the sensor element in SS housing points down relative to grade

5.2 Sensor Location

Selection of sensor location is critical to the overall safe performance of the product. Five factors play an important role in selection of sensor locations:

1) Density of the gas to be detected

2) Most probable leak sources within the industrial process

3) Ventilation or prevailing wind conditions

4) Personnel exposure

5) Maintenance access

Density - Placement of sensors relative to the density of the target gas is such that sensors for the detection of heavier than air gases should be located within 2-4 feet of grade as these heavy gases will tend to settle in low lying areas. For gases lighter than air, sensor placement should be 4-8 feet above grade in open areas or in pitched areas of enclosed spaces.

Leak Sources - Most probable leak sources within an industrial process include flanges, valves, and tubing connections of the sealed type where seals may either fail or wear. Other leak sources are best determined by facility engineers with experience in similar processes.

Ventilation - Normal ventilation or prevailing wind conditions can dictate efficient location of gas sensors in a manner where the migration of gas clouds is quickly detected.

Personnel Exposure - The undetected migration of gas clouds should not be allowed to approach concentrated personnel areas such as control rooms, maintenance or warehouse buildings. A more general and applicable thought toward selecting sensor location is combining leak source and perimeter protection in the best possible configuration.

Maintenance Access

Consideration should be given to easy access by maintenance personnel as well as the consequences of close proximity to contaminants that may foul the sensor prematurely.

(Figure 6). Improper sensor orientation may result in false reading and permanent sensor damage

DM-600IS Instruction Manual Rev 1.5.9 Page 14 of 37

Conduit

DM-600IS

"T"

Drain

EYS Seal Fitting

PGM 1

HOUSTON,TEXAS

MODEL DM-6xx

MicroSafe Gas Sensor

ALM ALM

1 2

FLT CAL

PGM 2

Figure 6 Typical Installation

5.3 Local Electrical Codes

Sensor and transmitter assemblies should be installed in accordance with all local electrical codes. Use appropriate conduit seals. Drains & breathers are recommended. The sensor assemblies are CSA-NRTL approved for Class I; Groups B, C, D; Div. 1 environments.

DM-600IS Instruction Manual Rev 1.5.9 Page 15 of 37

5.4 Installation Procedure

Note: Per U.L. approval, these relays may only be used in connecting to devices that are

6.1"

5.5"

8.985"

1/4" Mounting holes

3/4" NPT Ports

5.825"

Intrinsically Safe Sensor Head

4.65"

8-32 tapped ground point

Wall (or other

mounting surface

DM-600IS

Splash Guard

0.5"

Cal Port

Figure 7 Typical Outline and Mounting Dimensions

a) Securely mount the sensor junction box in accordance with recommended practice. See dimensional

drawing (Figure 7).

b) Remove the junction box cover and un-plug the control circuit by grasping the two thumb screws and

pulling outward.

c) Observing correct polarity, terminate 3 conductor field wiring, RS-485 wiring, and applicable alarm

wiring to the sensor base connector board in accordance with the detail shown in Figure 8. Normally open and normally closed Form C dry contacts (rated 5 amp @ 125VAC; 5 amp @ 30VDC) are provided for Fault, Alarm 1, and Alarm2.

d) Position gold plated jumper tabs located on the connector board in accordance with desired Form C

dry contact outputs: NO = Normally Open; NC = Normally closed (see Figure 8).

DM-600IS Instruction Manual Rev 1.5.9 Page 16 of 37

DM-600IS

corresponds to 0

100% of scale (see

Figure

Figure 8 Jumper Tab Positions on Term Board

Note: If a voltage signal output is desired in place of the 4-20mA output, a 1/4 watt resistor must be installed in position R1 of the terminal board. A 250Ω resistor will provide a 1-5V output (– to mA). A 100Ω resistor will provide a .4-2V output, etc. This linear signal

e) Program the alarms via the gold plated jumper tab positions located on the CPU board (see Figure 9).

Alarm 1 and Alarm 2 have three jumper programmable functions: latching/non-latching relays, normally energized/normally de-energized relays, and ascending/descending alarm set points. The fault alarm has two jumper programmable functions: latching/non-latching relay, and normally energized/normally de-energized relay. The default settings of the alarms (jumpers removed) are normally de-energized relays, non-latching relays, and alarm points that activate during descending gas conditions.

Figure 9 Alarm Programming Jumpers

DM-600IS Instruction Manual Rev 1.5.9 Page 17 of 37

DM-600IS

If a jumper tab is installed in the latch position that alarm relay will be in the latching mode. The latching mode will latch the alarm after alarm conditions have cleared until the alarm reset function is activated. The non-latching mode (jumper removed) will allow alarms to de-activate automatically once alarm conditions have cleared.

If a jumper tab is installed in the energize position, that alarm relay will be in the energized mode. The energized mode will energize or activate the alarm relay when there is no alarm condition and deenergize or de-activate the alarm relay when there is an alarm condition. The de-energized mode (jumper removed) will energize or activate the alarm relay during an alarm condition and de-energize or de-activate the alarm relay when there is no alarm condition.

If a jumper tab is installed in the ascending position that alarm relay will be in the ascending mode. The ascending mode will cause an alarm to fire when the gas concentration detected is greater than or equal to the alarm set point. The descending mode (jumper removed) will cause an alarm to fire when the gas concentration detected is lesser than or equal to the alarm set point. Except in special applications, toxic gas monitoring will require alarms to fire in “ASCENDING” gas conditions.

Any unused jumper tabs should be stored on the connector board on the terminal strip labeled “Unused Jumpers” (see Figure 8).

f) If applicable, set the RS-485 ID number via the two rotary dip switches located on the preamp board

(see Figure 10). There are 256 different ID numbers available which are based on the hexadecimal numbering system. If RS-485 communications are used, each sensor must have its own unique ID number. Use a jeweler’s screwdriver to set the rotary dip switches according to the table listed on the following page. If RS-485 communications are not used, leave the dip switches in the default position which is zero/zero (0)-(0).

Figure 10 RS-485 ID set Dip Switches

g) Replace the plug-in control circuit and replace the junction box cover.

DM-600IS Instruction Manual Rev 1.5.9 Page 18 of 37

DM-600IS

Table 5 RS-485 Rotary Dip Switch Settings

ID# SW1 SW2 ID# SW1 SW2 ID# SW1 SW2 ID# SW1 SW2 ID# SW1 SW2 ID# SW1 SW2

0 0 0 43 2 B 86 5 4 129 8 1 172 A C 215 D 7 1 0 1 44 2 C 86 5 6 130 8 2 173 A D 216 D 8 2 0 2 45 2 D 87 5 7 131 8 3 174 A E 217 D 9 3 0 3 46 2 E 88 5 8 132 8 4 175 A F 218 D A 4 0 4 47 2 F 89 5 9 133 8 5 176 B 0 219 D B 5 0 5 48 3 0 90 5 A 134 8 6 177 B 1 220 D C 6 0 6 49 3 1 91 5 B 135 8 7 178 B 2 221 D D 7 0 7 50 3 2 92 5 C 136 8 8 179 B 3 222 D E 8 0 8 51 3 3 93 5 D 137 8 9 180 B 4 223 E F

9 0 9 52 3 4 94 5 E 138 8 A 181 B 5 224 E 0 10 0 A 53 3 5 95 5 F 139 8 B 182 B 6 225 E 1 11 0 B 54 3 6 96 6 0 140 8 C 183 B 7 226 E 2 12 0 C 55 3 7 97 6 1 141 8 D 184 B 8 227 E 3 13 0 D 56 3 8 98 6 2 142 8 E 185 B 9 228 E 4 14 0 E 57 3 9 99 6 3 143 8 F 186 B A 229 E 5 15 0 F 56 3 8 100 6 4 144 9 0 187 B B 230 E 6 16 1 0 57 3 9 101 6 5 145 9 1 188 B C 231 E 7 17 1 1 58 3 A 102 6 6 146 9 2 189 B D 232 E 8 18 1 2 59 3 B 103 6 7 147 9 3 190 B E 233 E 9 19 1 3 60 3 C 104 6 8 148 9 4 191 B F 234 E A 20 1 4 61 3 D 105 6 9 149 9 5 192 C 0 235 E B 21 1 5 62 3 E 106 6 A 150 9 6 193 C 1 236 E C 22 1 6 63 3 F 107 6 B 151 9 7 194 C 2 237 E D 23 1 7 64 4 0 108 6 C 152 9 8 195 C 3 238 E E 24 1 8 65 4 1 109 6 D 153 9 9 196 C 4 239 F F 25 1 9 66 4 2 110 6 E 154 9 A 197 C 5 240 F 0 26 1 A 67 4 3 111 6 F 155 9 B 198 C 6 241 F 1 27 1 B 68 4 4 112 7 0 156 9 C 199 C 7 242 F 2 28 1 C 69 4 5 113 7 1 157 9 D 200 C 8 243 F 3 29 1 D 70 4 6 114 7 2 158 9 E 201 C 9 244 F 4 30 1 E 71 4 7 115 7 3 159 9 F 202 C A 245 F 5 31 1 F 72 4 8 116 7 4 160 A 0 203 C B 246 F 6 32 2 0 73 4 9 117 7 5 161 A 1 204 C C 247 F 7 33 2 1 74 4 A 118 7 6 162 A 2 205 C D 248 F 8 34 2 2 75 4 B 119 7 7 163 A 3 206 C E 249 F 9 35 2 3 76 4 C 120 7 8 164 A 4 207 C F 250 F A 36 2 4 77 4 D 121 7 9 165 A 5 208 D 0 251 F B 37 2 5 78 4 E 122 7 A 166 A 6 209 D 1 252 F C 38 2 6 79 4 F 123 7 B 167 A 7 210 D 2 253 F D 39 2 7 80 5 0 124 7 C 168 A 8 211 D 3 254 F E 40 2 8 81 5 1 125 7 D 169 A 9 212 D 4 255 F F 41 2 9 82 5 2 126 7 E 170 A A 213 D 5 42 2 A 83 5 3 127 7 F 171 A B 214 D 6

5.5 Remote Mounting Applications

Some sensor mounting applications require that the gas sensor head be remotely mounted away from the sensor transmitter. This is usually true in instances where the gas sensor head must be mounted in a location that is difficult to access. Such a location creates problems for maintenance and calibration activities. Detcon provides the DM-600IS sensor in a remote-mount configuration in which the sensor (Model DM-600IS-RS) and the transmitter (Model DM-600IS-RT) are provided in their own condulet housing and are interfaced together with a four conductor cable. Sensor can be separate from transmitter up to 50 feet using shielded twisted pair cable. See Figure 11 for wiring diagram.

DM-600IS Instruction Manual Rev 1.5.9 Page 19 of 37

DM-600IS

NOTE 1

: If the display contrast needs adjustment, refe

r to section

15.0

NOTE 2: Zero Clearing with Biased Cells

Figure 11 Remote Mount wiring

6.0 STARTUP

Upon completion of all mechanical mounting and termination of all field wiring, apply system power and observe the following normal conditions:

a. DM-6xxIS “Fault” LED is off.

b. A temporary upscale reading will occur as the sensor powers up. This upscale reading will clear to “0”

ppm within approximately 30 minutes of turn-on, assuming there is no gas in the area of the sensor.

Some electrochemical sensors are biased with an excitation voltage. When power to the sensor is lost, this bias voltage slowly decays. When power is restored after long periods (multiple hours) of being unpowered, a surge in sensor output takes place and a long and slow reestablishing of the sensor’s zero baseline takes place. This re-stabilization time may range from 1 hour to 24 hours depending on the type of sensor and range of operation. The sensor types that this applies to are the following: HCl, NO, plus all the VOC sensors, C2H30, C2H2, C3H3N, C4H6, CS2, COS, C2H6S, C3H5OCL, C2H5OH, C2H4, C2H4O, CH2O, CH3OH, C4H4S, C4H6O2, C6H5CH3 and C2H3CL.

DM-600IS Instruction Manual Rev 1.5.9 Page 20 of 37

DM-600IS

All alarms will be disabled for 1 minute after power up. In the event of power failure,

If this characteristic is problematic for your specific application, a battery backup or uninterruptible power supply is recommended.

NOTE 3:

the alarm disable periods will begin again once power has been restored. If using a biased cell (see note 2 above), this 1 minute delay may likely be inadequate for the signal to clear below alarm levels so manually disabling alarms is advised.

6.1 Initial Operational Tests

After a warm up period has been allowed for, the sensor should be checked to verify sensitivity to its target gas.

Material Requirements

 Detcon PN 943-000006-132 Calibration Adapter  Span gas containing the target gas in air or nitrogen. It is recommended that the target gas

concentration be 50% of scale at a controlled flow rate of 500 ml/min. For example, a Model DM600IS-H2S sensor in the range 0-100ppm would require a test gas of 50ppm H2S. For a sensor with a range of 0-10ppm a test gas of 5ppm is recommended, etc.

a) Attach the calibration adapter to the sensor housing. Apply the test gas at a controlled flow rate of 500

ml/m. Observe that the LCD display increases to a level of 20% of range or higher. b) Remove the test gas and observe that the LCD display decreases to “0 PPM”. c) If alarms are activated during the test, and have been programmed for latching operation, reset them

according to the instructions in section 11.2.

Initial operational tests are complete. Detcon toxic gas sensors are pre-calibrated prior to shipment and will, in most cases, not require significant adjustment on start up. However, it is recommended that a complete calibration test and adjustment be performed within 24 hours of installation. Refer to calibration instructions in section 9.0.

7.0 OPERATING SOFTWARE & MAGNETIC INTERFACE

Operating software is menu listed with operator interface via the two magnetic program switches located under the face plate. The two switches are referred to as “PGM 1” and “PGM 2”. The menu list consists of 3 items which include sub-menus as indicated below. (Note: see section 8.0 for a complete software flow chart.)

1) Normal Operation

a) Current Status

1) Calibration Mode

a) Zero b) Span

1) Program Menu

a) View Program Status b) Alarm 1 Level c) Alarm 2 Level d) Set Calibration Level

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DM-600IS

7.1 Normal Operation

In normal operation, the display tracks the current status of the sensor and gas concentration and appears as: “0 PPM xxx” (the “xxx” is the abbreviated gas type, i.e. “0 PPM H2S”. The mA current output corresponds to the monitoring level of 0-100% of range = 4-20 mA.

7.2 Calibration Mode

Calibration mode allows for sensor zero and span adjustments. “1-ZERO 2-SPAN”

7.2.1 Zero Adjustment

Zero is set in ambient air with no target gas present or with zero gas applied to the sensor. “AUTO ZERO”

7.2.2 Span Adjustment

Span adjustment is performed with a target gas concentration of 50% of range in air or nitrogen. Span gas concentrations other than 50% of range may be used. Refer to section 7.3.4 for details. “AUTO SPAN”

7.3 Program Mode

The program mode provides a program status menu and allows for the adjustment of alarm set point levels and the programming of the calibration gas level setting.

7.3.1 Program Status

 The program status scrolls through a menu that displays:  The software version number.  Range is ###  The alarm set point level of alarm 1. The menu item appears as: “ALM1 SET @ ##PPM”  The alarm firing direction of alarm 1. The menu item appears as: “ALM1 ASCENDING” or

descending.

 The alarm relay latch mode of alarm 1. The menu item appears as: “ALM1 NONLATCHING” or

latching.

 The alarm relay energize state of alarm 1. The menu item appears as: “ALM1 DE-ENERGIZED” or

energized.

 The alarm set point level of alarm 2. The menu item appears as: “ALM2 SET @ ##PPM”  The alarm firing direction of alarm 2. The menu item appears as: “ALM2 ASCENDING” or

descending.

 The alarm relay latch mode of alarm 2. The menu item appears as: “ALM2 LATCHING” or non-

latching.

 The alarm relay energize state of alarm 2. The menu item appears as: “ALM2 DE-ENERGIZED” or

energized.

 The alarm relay latch mode of the fault alarm. The menu item appears as: “FLT NONLATCHING”

or latching.

 The alarm relay energize state of the fault alarm. The menu item appears as: “FLT ENERGIZED” or

de-energized.

 The calibration gas level setting. The menu item appears as: “CalLevel @ xxPPM”  Identification of the RS-485 ID number setting. The menu item appears as: “485 ID SET @ ##”  The estimated remaining sensor life. The menu item appears as: “SENSOR LIFE 100%”

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DM-600IS

NOTE:

If, after entering the calibration or program menus, there is no interaction with the

7.3.2 Alarm 1 Level Adjustment

The alarm 1 level is adjustable from 10% to 90% of range. The menu item appears as: “SET ALM1 @ ##PPM”

7.3.3 Alarm 2 Level Adjustment

The alarm 2 level is adjustable from 10% to 90% of range. The menu item appears as: “SET ALM2 @ ##PPM”

7.3.4 Calibration Level Adjustment

The Calibration level is adjustable from 10% to 90% of range. The menu item appears as: “CalLevel @ ##PPM”

7.4 Programming Magnet Operating Instructions

Operator interface to MicroSafe™ gas detection products is via magnetic switches located behind the transmitter face plate. DO NOT remove the glass lens cover to calibrate or change programming parameters. Two switches labeled “PGM 1” and “PGM 2” allow for complete calibration and programming without removing the enclosure cover, thereby eliminating the need for area de-classification or the use of hot permits.

Figure 12 Programming Magnet

A magnetic programming tool (see Figure 12) is used to operate the switches. Switch action is defined as momentary contact, 3 second hold, and 30-second hold. In momentary contact use, the programming magnet is waved over a switch location. In 3 second hold, the programming magnet is held in place over a switch location for 3 or more seconds. In 30 second hold, the programming magnet is held in place over a switch location for 30 or more seconds. Three and thirty second hold is used to enter or exit calibration and program menus while momentary contact is used to make adjustments. The location of “PGM 1” and “PGM 2” are shown in Figure 13.

menu items for more than 30 seconds, the sensor will return to its normal operating condition

Figure 13 UniversalMicroprocessor Control Transmitter Circuit

DM-600IS Instruction Manual Rev 1.5.9 Page 23 of 37

8.0 Software Flow Chart

DM-600IS

Figure 14 Software Flow Chart

DM-600IS Instruction Manual Rev 1.5.9 Page 24 of 37

9.0 Calibration

NOTE:

Before performing a zero calibration, be sure there is no background gas present or

CAUTION:

Verification of the correct calibration gas level setting and calibration span gas

Material Requirements

 Detcon PN 327-000000-000 MicroSafeTM Programming Magnet  Detcon PN 943-000006-132 Calibration Adapter  Span gas containing the target gas in air or nitrogen. The target gas concentration is recommended at

50% of range (which is the factory default) at a controlled flow rate of 500 ml/min. Example: for a Model DM-600IS-H2S sensor with a range of 0-100ppm, a test gas of 50 ppm is recommended. For a sensor with a range of 0-10 ppm a test gas of 5 ppm is recommended, etc. Other concentrations can be used as long as they fall within 10% to 90% of range. See section 9.2 for details. Reference section 10-

2) -b) if you do not know the sensor target gas or range of detection.

9.1 Calibration Procedure - Zero

apply a zero gas standard prior to performing zero calibration.

a) Enter the calibration menu by holding the programming magnet stationary over “PGM 1” (see figure

6) for 3 seconds until the display reads “1-ZERO 2-SPAN” then withdraw the magnet. Note that the “CAL” LED is on.

DM-600IS

b) Next, enter the zero menu by holding the magnet stationary over “PGM 1” for 3 seconds until the

display reads: “SETTING ZERO”, then withdraw the magnet. The sensor has now entered the auto zero mode. When it is complete the display will read “ZERO COMPLETE” for 5 seconds and then return to the normal operations menu reading “(0 PPM)”.

Zero calibration is complete.

9.2 Calibration Procedure - Span

concentration is required before “span” calibration. These two numbers must be equal.

Calibration consists of entering the calibration function and following the menu-displayed instructions. The display will ask for the application of span gas in a specific concentration. This concentration must be equal to the calibration gas level setting. The factory default setting for span gas concentration is 50% of range. In this instance, a span gas containing a concentration equal to 50% of range is required. If a span gas containing 50% of range is not available, other concentrations may be used as long as they fall within 10% to 90% of range. However, any alternate span gas concentration value must be programmed via the calibration gas level menu before proceeding with span calibration. Follow the instructions below for span calibration.

a) Verify the current calibration gas level setting as indicated by the programming status menu. To do

this, follow the instructions in section 10 and make note of the setting found in listing number 12. The item appears as “CalGas @ xxPPM”.

b) If the calibration gas level setting is equal to your calibration span gas concentration, proceed to item

“f”. If not, adjust the calibration gas level setting so that it is equal to your calibration span gas concentration, as instructed in items “c” through “e”.

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DM-600IS

NOTE 1

: If there is not a minimal response to the cal gas

in the first minute, the

sensor will

NOTE 2

: If during the auto

span function the sensor fails to meet a minimum signal stability

c) Enter the programming menu by holding the programming magnet stationary over “PGM 2” for 30

seconds until the display reads “VIEW PROG STATUS” then withdraw the magnet. At this point you can scroll through the programming menu by momentarily waving the programming magnet over “PGM 1” or “PGM 2”. The menu options are: View Program Status, Set Alarm 1 Level, Set Alarm 2 Level, and Set Cal Level.

d) From the programming menu scroll to the calibration level listing. The menu item appears as: “SET

CAL LEVEL”. Enter the menu by holding the programming magnet stationary over “PGM 1” for 3 seconds until the display reads “CalGas @ ##PPM”, then withdraw the magnet. Use the programming magnet to make an adjustment to “PGM 1” to increase or “PGM 2” to decrease the display reading until the reading is equal to the desired calibration span gas concentration. Exit to the programming menu by holding the programming magnet over “PGM1” for 3 seconds.

e) Exit back to normal operation by holding the programming magnet over “PGM 2” for 3 seconds, or

automatically return to normal operation in 30 seconds.

f) From the calibration menu “1-ZERO 2-SPAN” (section 9.1-a) proceed into the span adjust function

by holding the programming magnet stationary over “PGM 2” for 3 seconds then withdraw the programming magnet. At this point the display will ask for the application of the target gas and concentration. The display reads “APPLY xxx PPM” The x’s here will indicate the actual concentration requested.

g) Apply the calibration test gas at a flow rate of 500 milliliters per minute. As the sensor signal changes,

the display will change to “AutoSpan xxPPM”. The “xx” part of the reading indicates the actual gas reading which will increase until the sensor stabilizes. When the sensor signal is stable it will auto span to the correct ppm reading and the display will change to “SPAN COMPLETE” for 3 seconds, then to “SENSOR LIFE: xxx%” and then “REMOVE GAS”. Remove the gas. When the signal level has fallen below 10% of full scale, the display will return to the normal operating mode.

enter into the calibration fault mode which will cause the display to alternate between the sensor’s current status reading and the calibration fault screen which appears as: “SPAN FAULT #1” (see section 9.3).

criteria, the sensor will enter the calibration fault mode which will cause the display to alternate between the sensor’s current status reading and the calibration fault screen which appears as: “SPAN FAULT #2” (see section 9.3).

9.3 Additional Notes

1. Upon entering the calibration menu, the 4-20 mA signal drops to 2 mA and is held at this level until you return to normal operation.

2. If during calibration the sensor circuitry is unable to attain the proper adjustment for zero or span, the sensor will enter into the calibration fault mode which may activate fault alarm functions (see section

12.0) and will cause the display to alternate between the sensor’s current status reading and the reported calibration fault description. In these cases, the previous calibration points will remain in memory. If this occurs you may attempt to recalibrate by entering the calibration menu as described in section 9.1-a. If the sensor fails again, defer to technical trouble shooting (see section 16.0).

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DM-600IS

9.4 Calibration Frequency

In most applications, monthly to quarterly calibration intervals will assure reliable detection. However, industrial environments differ. Upon initial installation and commissioning, close frequency tests should be performed, weekly to monthly. Test results should be recorded and reviewed to determine a suitable calibration interval.

10.0 STATUS OF PROGRAMMING: SOFTWARE

VERSION, ALARMS, CALIBRATION LEVEL, RS-485 ID, AND SENSOR LIFE

The programming menu has a programming status listing that allows the operator to view the gas, range, and software version number of the program, as well as the current alarm settings, calibration gas level setting, RS485 ID number, and estimated remaining sensor life. The programming menu also allows the changing of alarm levels (see section 11.0) and the programming of the calibration gas level setting (see section 9.2).

The following procedure is used to view the programming status of the sensor:

1) First, enter the programming menu by holding the programming magnet stationary over “PGM 2” for 30

seconds until the display reads “VIEW PROG STATUS”, then withdraw the magnet. At this point you can scroll through the programming menu by momentarily waving the programming magnet over “PGM 1” or “PGM 2”. The menu options are: View Program Status, Set Alarm 1 Level, Set Alarm 2 Level, and Set Cal Level.

2) Next, scroll to the “VIEW PROG STATUS” listing and then hold the programming magnet over “PGM

1” for 3 seconds. The menu will then automatically scroll, at five second intervals, through the following information before returning back to the “VIEW PROG STATUS” listing. a) The software version number. b) Range is ### c) The alarm set point level of alarm 1. The menu item appears as: “ALM1 SET @ xxPPM” d) The alarm firing direction of alarm 1. The menu item appears as: “ALM1 ASCENDING” e) The alarm relay latch mode of alarm 1. The menu item appears as: “ALM1 NONLATCHING” f) The alarm relay energize state of alarm 1. The menu item appears as: “ALM1 DE-ENERGIZED” g) The alarm set point level of alarm 2. The menu item appears as: “ALM2 SET @ xxPPM” h) The alarm firing direction of alarm 2. The menu item appears as: “ALM2 ASCENDING” i) The alarm relay latch mode of alarm 2. The menu item appears as: “ALM2 LATCHING” j) The alarm relay energize state of alarm 2. The menu item appears as: “ALM2 DE-ENERGIZED” k) The alarm relay latch mode of the fault alarm. The menu itemappears as: “FLT NONLATCHING” l) The alarm relay energize state of the fault alarm. The menu item appears as: “FLT ENERGIZED” m) Calibration gas level setting. The menu item appears as: “CalLevel @ xxPPM” n) Identification of the RS-485 ID number setting. The menu item appears as: “485 ID SET @ 1” o) The estimated remaining sensor life. The menu item appears as: “SENSOR LIFE 100%”

3) Exit back to normal operations by holding the programming magnet over “PGM 2” for 3 seconds, or

automatically return to normal operation in 30 seconds.

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DM-600IS

11.0 PROGRAMMING ALARMS

11.1 Alarm Levels

Both alarm 1 and alarm 2 levels are factory set prior to shipment. Alarm 1 is set at 20% of range and alarm 2 at 40% of range. Both alarms can be set in 1% increments from 10% to 90% of range. The following procedure is used to change alarm set points:

a) First, enter the programming menu by holding the programming magnet stationary over “PGM 2” for

30 seconds until the display reads “VIEW PROG STATUS”, then withdraw the magnet. At this point you can scroll through the programming menu by momentarily waving the programming magnet over “PGM 1” or “PGM 2”. The menu options are: View Program Status, Set Alarm 1 Level, Set Alarm 2 Level, and Set Cal Level.

b) ALARM 1 LEVEL From the programming menu scroll to the alarm 1 level listing. The menu item

appears as: “SET ALARM 1 LEVEL”. Enter the menu by holding the programming magnet stationary over “PGM 1” for 3 seconds until the display reads “SET ALM1 @ ##PPM”, then withdraw the magnet. Use the programming magnet to make an adjustment to “PGM 1” to increase or “PGM 2” to decrease the display reading until the reading is equal to the desired alarm set point. Exit to the programming menu by holding the programming magnet over “PGM1” for 3 seconds, or automatically return to the programming menu in 30 seconds.

c) ALARM 2 LEVEL From the programming menu scroll to the alarm 2 level listing. The menu item

appears as: “SET ALARM 2 LEVEL”. Enter the menu by holding the programming magnet stationary over “PGM 1” for 3 seconds until the display reads “SET ALM2 @ ##PPM”, then withdraw the magnet. Use the programming magnet to make an adjustment to “PGM 1” to increase or “PGM 2” to decrease the display reading until the reading is equal to the desired alarm set point. Exit to the programming menu by holding the programming magnet over “PGM1” for 3 seconds, or automatically return to the programming menu in 30 seconds.

d) Exit back to normal operations by holding the programming magnet over “PGM 2” for 3 seconds, or

automatically return to normal operation in 30 seconds.

11.2 Alarm Reset

An alarm condition will cause the applicable alarm to activate its corresponding relay and LED. If alarm 1, alarm 2, or fault alarms have been programmed for latching relays, an alarm reset function must be activated to reset the alarms after an alarm condition has cleared. To reset the alarms, simply wave the programming magnet over either “PGM 1” or “PGM 2”, momentarily, while in normal operations mode and note that the corresponding alarm LED(s) turn off.

11.3 Other Alarm Functions

Alarms are factory programmed to be non-latching, de-energized; and to fire under ascending gas conditions. The fault alarm relay is programmed as normally energized which is useful for detecting a 24VDC power source failure. All alarm functions are programmable via jumper tabs. Changing alarm functions requires the sensor housing to be opened, thus declassification of the area is required. See section 5.4 for details.

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DM-600IS

12.0 PROGRAM FEATURES

Detcon MicroSafeTM toxic gas sensors incorporate a comprehensive program to accommodate easy operator interface and fail-safe operation. Program features are detailed in this section. Each sensor is factory tested, programmed, and calibrated prior to shipment.

Over Range

When the sensor detects gas greater than 100% of range, it will cause the display to flash the highest reading of its range on and off.

Under Range Fault(s) If the sensor should drift below a zero baseline of -10% of range, the display will indicate a fault: “ZERO FAULT”. This is typically fixed by performing another zero cal. When the total negative zero drift exceeds

the acceptable threshold the display will indicate “SENSOR FAULT” and you will longer be able to zero calibrate.

Span Fault #1

If during span calibration the sensor circuitry is unable to attain a minimum defined response to span gas, the sensor will enter into the calibration fault mode and cause the display to alternate between the sensor’s current status reading and the calibration fault screen which appears as: “SPAN FAULT #1”. The previous calibration settings will remain saved in memory. Previous span calibration is retained.

Span Fault #2

If during the span routine, the sensor circuitry is unable to attain a minimum defined stabilization point, the sensor will enter into the calibration fault mode and cause the display to alternate between the sensor’s current status reading and the calibration fault screen which appears as “SPAN FAULT #2”. Previous span calibration is retained.

Memory Fault

If new data points cannot successfully be stored to memory the display will indicate: “MEMORY FAULT”.

Fail-Safe/Fault Supervision

Detcon MicroSafeTM sensors are programmed for fail-safe operation. All fault conditions illuminate the fault LED, and cause the display to read its corresponding fault condition: “ZERO FAULT”, “SENSOR FAULT”, “SPAN FAULT #1”, or “SPAN FAULT #2”. A “SENSOR FAULT” and “ZERO FAULT” will activate the fault relay and cause the mA output to drop to zero (0) mA.

Sensor Life

The “Sensor Life” feature gauges the remaining sensor life based on signal output from the sensor cell. When sensor life of 25% or less remains the sensor cell should be replaced within a reasonable maintenance schedule.

13.0 UNIVERSAL TRANSMITTER FEATURE (RE-

INITIALIZATION)

The Model DM600IS uses a universal transmitter design that allows the transmitter to be set up for any target gas and any toxic concentration range. The original transmitter set-up is done at Detcon Inc. as part of the sensor test and calibration procedure, but it may also be changed in the field if necessary. The Universal Transmitter feature is a significant convenience to the user because it allows hardware flexibility and minimizes the spare parts requirements to handle unexpected transmitter failures of different gas/ranges. It is

DM-600IS Instruction Manual Rev 1.5.9 Page 29 of 37

DM-600IS

NOTE:

If the Universal Transmitter is changed for gas type and range, it must be consistent

NOTE 1:

If the gas symbol has more than 6 characters, th

e symbol can be replaced by an

NOTE 2

: When the Universal Tra

nsmitter is re

initialized and a new gas and range is entered,

however, absolutely critical that changes to gas/range set-up of the Universal Transmitter be consistent with the gas type and range of the Intrinsically Safe Sensor Head that it is connected to.

with the Intrinsically Safe sensor head it is mated with.

If the Universal Transmitter needs to be changed for gas type and range follow this procedure. First, unplug the transmitter temporarily and then plug it back in. While the message “Universal Transmitter” appears, take the program magnet and swipe it over magnet PGM1. This will reveal the set-up options for gas range and gas type.

Swipe over PGM1to advance through the options for gas range which include: 1, 2, 3....10 ppm

10, 15, 20...100 ppm 100, 200, 300...1000 ppm 1000, 2000, 3000 10,000 ppm When the correct range is displayed, hold magnet over PGM1 for 3 seconds to accept the selection.

Next is your selection for the gas type. In this set-up you will enter the alpha-numeric characters of the gas type. Reference the list on page 3 for correct symbols. There is space for the chemical formula up to six characters. Use GM1 and PGM2 swipes to advance through the alphabet and numbers 0-9 selection (there is a blank space after 9). When the correct alphanumeric character is highlighted, hold the magnet over PGM1 for 3 seconds to lock it in. This moves you to the next blank and the procedure is repeated until the chemical formula is completed. After the 6th character is locked in the transmitter will proceed to normal operation.

abbreviated version of the target gas name such as TOL or TOLUEN for Toluene which has the symbol C6H5CH3. For Epichlorohydrin (symbol C3H5OCL) you can substitute the name EPI or EPICHL etc.

all of the previous customer settings for alarm levels and span gas value are reset to their default levels. These must be re-programmed back to the customer specific settings

14.0 RS-485 PROTOCOL

Detcon MicroSafe™ toxic gas sensors feature Modbus™ compatible communications protocol and are addressable via rotary dip switches for multi-point communications. Other protocols are available. Contact the Detcon factory for specific protocol requirements. Communication is two wire, half duplex 485, 9600 baud, 8 data bits, 1 stop bit, no parity, with the sensor set up as a slave device. A master controller up to 4000 feet away can theoretically poll up to 256 different sensors. This number may not be realistic in harsh environments where noise and/or wiring conditions would make it impractical to place so many devices on the same pair of wires. If a multi-point system is being utilized, each sensor should be set for a different address. Typical address settings are: 01, 02, 03, 04, 05, 06, 07, 08, 09, 0A, 0B, 0C, 0D, 0E, 0F, 10, 11, etc.

In most instances, RS-485 ID numbers are factory set or set during installation before commissioning. If required, the RS-485 ID number can be set via rotary dip switches located on the preamp circuit board. However, any change to the RS-485 ID number would require the sensor housing to be opened, thus

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DM-600IS

declassification of the area would be required. See section 5.4-f) for details on changing the RS-485 ID number.

The following section explains the details of the Modbus™ protocol that the MicroSafeTM sensor supports.

Code 03 - Read Holding Registers is the only code supported by the transmitter. Each transmitter contains 6 holding registers which reflect its current status.

Gas type is one of the following: 01=CO, 02=H2S, 03=SO2, 04=H2, 05=HCN, 06=CL2, 07=NO2, 08=NO, 09=HCL, 10=NH3, 11=LEL, 12=O2

Sensor life is an estimated remaining use of the sensor head, between 0% and 100% Example: 85=85% sensor life

i.e. 100 for 0-100 ppm, 50 for 0-50 ppm, etc.

The current gas reading as a whole number. If the reading is displayed as 23.5 on the display, this register would contain the number 235.

This is the trip point for the first alarm.

This is the trip point for the second alarm.

High Byte Bit 7 Not used, always 0 Bit 6 Not used, always 0 Bit 5 Not used, always 0 Bit 4 Not used, always 0 Bit 3 1-Unit is in calibration 0-Normal operation Bit 2 1-Alarm 2 is ascending 0-Alarm 2 is descending Bit 1 1-Alarm 2 is normally energized 0-Alarm 2 is normally de-energized Bit 0 1-Alarm 2 is latching 0-Alarm 2 is non-latching

DM-600IS Instruction Manual Rev 1.5.9 Page 31 of 37

Low Byte

Field Name

HEX

DEC

RTU

Slave Address

0880000 1000

Function

0330000 0011

Start Address Hi

0000000 0000

Start Address Lo

0000000 0000

No. of Registers Hi

0000000 0000

No. of Registers Lo

0660000 0110

CRC

#### ####

CRC

#### ####

Function

0330000 0011

Byte Count

0C120000 1100

Reg40000 Data Hi

0220000 0010

Reg400

00 Data Lo

100

0110 0100

Reg40001 Data Hi

0000000 0000

Reg40001 Data Lo

100

0110 0100

Reg40002 Data Hi

0000000 0000

Reg40002 Data Lo

0770000 0111

Reg40003 Data Hi

0000000 0000

Reg40003 Data Lo

0A100000 1010

Reg40004 Data Hi

0000000

0000

Reg40004 Data Lo

14200001 0100

Reg40005 Data Hi

0550000 0101

Reg40005 Data Lo

50800101 0000

CRC

#### ####

Bit 7 1-Alarm 2 Relay is energized 0-Alarm 2 Relay is not energized Bit 6 1-Alarm 1 is ascending 0-Alarm 1 is descending Bit 5 1-Alarm 1 is normally energized 0-Alarm 1 is normally de-energized Bit 4 1-Alarm 1 is latching 0-Alarm 1 is non-latching Bit 3 1-Alarm 1 Relay is energized 0-Alarm 1 Relay is not energized Bit 2 1-Fault is normally energized 0-Fault is normally de-energized Bit 1 1-Fault is latching 0-Fault is non-latching Bit 0 1-Fault Relay is energized 0-Fault Relay is not energized

The following is a typical Master Query for device # 8:

The following is a typical Slave Response from device # 8:

Field Name HEX DEC RTU Slave Address 08 8 0000 1000

DM-600IS

CRC ## #### ####

Additional Notes: The calibration LED will light when the transmitter is sending a response to a Master Query. Communications are 9600 baud, 8 data bits, 1 stop bit, No parity, and half-duplex 485.

On ranges set from 1 ppm to 10 ppm the reading and alarm set points are displayed as ##.##ppm.

On ranges set from 15 ppm to 50 ppm the reading and alarm set points are displayed as ##.#ppm.

To accommodate these fractional readings using the Modbus™ interface, the reading and alarm set points are multiplied by 100 before they are stored for retrieval by a Modbus™ command.

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DM-600IS

Examples: The transmitter is set for a range of 5 ppm. The display on the transmitter reads 2.74 ppm. The transmitter is polled for its reading using a Modbus™ command. The value returned in the response is decimal 274. Obtain the correct reading by dividing. 274/100 = 2.74 ppm.

The transmitter is set for a range of 25 ppm. The display on the transmitter reads 22.9 ppm. The transmitter is polled for its reading using a Modbus™ command. The value returned in the response is decimal 2290. Obtain the correct reading by dividing. 2290/100 = 22.9 ppm.

On ranges above 50 ppm there is no math involved. The readings are stored the same as they are seen on the transmitters display.

15.0 DISPLAY CONTRAST ADJUST

Detcon MicroSafeTM sensors feature a 16 character backlit liquid crystal display. Like most LCDs, character contrast can be affected by viewing angle and temperature. Temperature compensation circuitry included in the MicroSafeTM design will compensate for this characteristic; however temperature extremes may still cause a shift in the contrast. Display contrast can be adjusted by the user if necessary. However, changing the contrast requires that the sensor housing be opened, thus declassification of the area is required.

To adjust the display contrast, remove the enclosure cover and use a jeweler’s screwdriver to turn the contrast adjust screw located beneath the metallic face plate. The adjustment location is marked “CONTRAST”. See Figure 13 for location.

16.0 TROUBLE SHOOTING

Sensor reads Over-range after Power-up

Probable Cause: Biased sensor requiring additional stabilization time.

1. Verify if this is a Biased sensor (see section 6.0).

2. Wait up to 8 hours for unit to come on-scale if using a low range biased sensor.

3. Verify that there is not large amounts of target gas or interfering gases in background.

Reading Higher than Anticipated

Probable Causes: Target or Interfering gases in background, Incorrect calibration for Zero or Span, Biased sensor still stabilizing.

1. Verify no target or interfering gases are present.

2. Redo Zero and Span calibrations with validated Zero Gas and Span Gas standards.

3. If recovering after a start-up, give more time to stabilize.

Reading Lower than Anticipated

Probable Causes: Target gas or Interfering gases in background during Zero Calibration, Zero Calibration done before unit finished stabilizing, Incorrect Span Calibration.

1. Redo Zero and Span calibrations with validated Zero Gas and Span Gas standards.

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DM-600IS

Sensor Fault

Probable Causes: Yellow wire is connected. Sensor has drifted since last zero cal.

1. Remove yellow wire if connected.

2. Redo Zero calibration

Zero Calibration Fault Probable Causes: Target gas or Interfering gases in background during Zero Calibration, Failed electrochemical sensor.

1. Verify no target or interfering gases are present.

2. Redo Zero and Span calibrations with validated Zero Gas and Span Gas standards.

3. If recovering after a start-up, give more time to stabilize.

Span Calibration Fault

Probable Causes: Failed electrochemical sensor, ice/mud/dust blocking sensor membrane, invalid span calibration gas do to age and contamination or insufficient flow rate.

1. Verify there is no ice/mud/dust blocking sensor membrane.

2. Redo Span Calibration with validated Span Gas standard (check with Pull Tube).

3. Reinitialize unit by plugging in transmitter while holding the magnet on PGM1. Scroll through and select the correct gas type. Make sure all customer settings are re-entered after “re-initialization”.

4. Replace with new electrochemical sensor.

Noisy Sensor (continuous drift) or suddenly Spiking

Probable Cause: Unstable power source, Inadequate grounding, Inadequate RFI protection.

1. Verify power Source output and stability.

2. Contact Detcon for assistance in optimizing shielding and grounding.

3. Add RFI Protection accessory available from Detcon.

LCD Difficult to Read

Probable Cause: Needs adjustment.

1. Adjust contrast pot as necessary.

Reporting “ERROR @ XXXXXXX”

Probable Cause: Span calibration calculation error.

1. Reinitialize unit by plugging in transmitter and then swiping the magnet over PGM1 while “Universal Transmitter” is displayed. Scroll through and select the correct gas type and range (see section 13.0 Universal Transmitter Features). Make sure all customer specific settings are re-entered after “reinitialization”.

DM-600IS Instruction Manual Rev 1.5.9 Page 34 of 37

17.0 SPARE PARTS LIST

943-000006-132 Calibration Adapter 500-001794-004 Connector board 327-000000-000 Programming Magnet 897-850901-010 Detcon Aluminum Enclosure with glass lens cover 960-202200-000 Condensation prevention packet (replace annually). 926-995580-000 DM-6xx Series Universal Plug-in Control Circuit 926-845580-04P* DM-6xx-H2 LEL range Series Universal Plug-in Control Circuit

* The H2 LEL range transmitter is not universal but is discrete to Hydrogen in the 0-4% by volume range.

N7 Aluminum Lid with window, part

Customer Supplied

Wiring

+24VDC Power IN

Common DC Power IN

4-20 mA Output

of Assembly # 897-850901-010

DM-600IS

Standard Connector Board P/N 500-01794-001

DM Plug-In Sensor Replacement Cell P/N 370-XXXX00-000

Where XXXX represents GAS code and Cell code

Toxic Is Hsg Gasket

P/N 027-02364-1

O'ring 1 1/4"ID X 1 7/16OD 0.103W

O'ring 1 9/16" ID X 1 3/4"OD 0.103W

P/N 171

Splashguard with Calibration Adapter

P/N:613-120000-700

P/N 173

Sensor Head Wiring Connection

STANDARD CONNECTOR BOARD

Condensation Prevention Packet

P/N:960-202200-000

IS Sensor Head P/N 394-XXXX00-Range Where XXXX represents GAS code and Cell code

Figure 15 Spare parts diagram

Transmitter Module DM-600IS P/N 926-995580-000

P/N:500-001794-001

N7 Aluminum condulet, part of

Assembly # 897-850901-010

6/32 X 3/8 Screw (2ea.)

#6 internal Star Washer (2ea.)

DM-600IS Instruction Manual Rev 1.5.9 Page 35 of 37

Table 6 Replacement IS Sensor Head / Plug-in Replacement Sensor Cell

Model Number

GasName

IS Sensor Head

Plug

in Replacement

DM-

500IS

C2H3O

Acetaldehyde

394-12EA00

Range

370-12EA00

000DM-

500IS

C2H2

Acetylene

394-12EG00

Range

370-12EG00

000DM-

500IS

C3H3N

Acrylonitrile

394-12EM00

Range

370-12EM00

000DM-

500IS

NH3 (

20°C)

Ammonia

394-171700

Range

370-171700

000DM-

501IS

NH3 (

40°C)

Ammonia

394-151500

Range

370-151500

000DM-

502IS

NH3 (CE)

Ammonia

394-505000

Range

370-505000

000DM-

500IS

AsH3

Arsine

394-191900

Range

370-191900

000DM-

500IS

Br2

Bromine

394-747500

Range

370-747500

000DM-

500IS

C4H6

Butadiene

394-12EB00

Range

370-

12EB00

000DM-

500IS

CS2

Carbon Disulfide

394-12EH00

Range

370-12EH00

000DM-

500IS

-COCarbon Monoxide

394-444400

Range

370-444400

000DM-

500IS

COS

Carbonyl Sulfide

394-12EN00

Range

370-12EN00

000DM-

500IS

CL2

Chlorine

394-747400

Range

370-747400

000

DM-500IS

CLO2 (>10ppm)

Chlorine Dioxide

394-747600

Range

370-747600

000

DM-501IS

CLO2 (

≤10ppm)

Chlorine Dioxide

394-777700

Range

370-777700

000DM-

500IS

B2H6

Diborane

394-192100

Range

370-192100

000DM-

500IS

C2H6S

Dimethyl Sulfide

394-12EC00

Range

370-12EC00

000DM-

500IS

C3H5OCL

Epichlorohydrin

394-12EI00

Range

370-12EI00

000DM-

500IS

C2H5OH

Ethanol

394-12EO00

Range

370-12EO00

000DM-

500IS

C2H5SH

Ethyl Mercaptan

394-24EZ00

Range

370-24EZ00

000DM-

500IS

C2H4

Ethylene

394-12ED00

Range

370-12ED00

000DM-

500IS

C2H4O

Ethylene Oxide

394-12EJ00

Range

370-12EJ00

000DM-

500IS

-F2Fluorine

394-272700

Range

370-272700

000DM-

500IS

CH2O

Formaldehyde

394-12EP00

Range

370-12EP00

000DM-

500IS

GeH4

Germane

394-232500

Range

370-232500

000DM-

500IS

N2H4

Hydrazine

394-262600

Range

370-262600

000DM-

500IS

H2 (ppm)

Hydrogen

394-848400

Range

370-848400

000DM-

501IS

H2 (LEL)

Hydrogen

394-050500

Range

370-050500

000DM-

500IS

HBr

Hydrogen Bromide

394-090800

Range

370-090800

000DM-

500IS

HCL

Hydrogen Chloride

394-09090

0-Range

370-090900

000DM-

500IS

HCN

Hydrogen Cyanide

394-131300

Range

370-131300

000DM-

500IS

-HFHydrogen Fluoride

394-333300

Range

370-333300

000DM-

500IS

H2S

Hydrogen Sulfide

394-242400

Range

370-242400

000DM-

500IS

CH3OH

Methanol

394-12EE00

Range

370-

12EE00

000

DM-500IS

CH3SH

Methyl Mercaptan

394-24EK00

Range

370-24EK00

000

DM-500IS

-NONitric Oxide

394-949400

Range

370-949400

000DM-

500IS

NO2

Nitrogen Dioxide

394-646400

Range

370-646400

000DM-

500IS

-O3Ozone

394-393900

Range

370-393900

000DM-500IS-COCL2

Phosgene

394-414100

Range

370-414100

000DM-

500IS

PH3

Phosphine

394-192000

Range

370-192000

000DM-

500IS

SiH4

Silane

394-232300

Range

370-232300

000DM-

500IS

SO2

Sulfur Dioxide

394-555500

Range

370-555500

000DM-

500IS

C4H8S

Tetrahydrothiophen

394-434300

Range

370-434300

000DM-

500IS

C4H4S

Thiophane

394-12EQ00

Range

370-12EQ00

000DM-

500IS

C6H5CH3

Toluene

394-12ER00

Range

370-12ER00

000DM-

500IS

C4H6O2

Vinyl Acetate

394-12EF00

Range

370-12EF00

000DM-

500IS

C2H3CL

Vinyl Chloride

394-12EL00

Range

370-12EL00

000

Sensor Cell

DM-600IS

DM-600IS Instruction Manual Rev 1.5.9 Page 36 of 37

DM-600IS

Revision

Date

Changes made

Approval

1.5.6

09/12/2006

Previously issued

1.5.7

08/19/2010

Calibration Adapter

changed from 943

000217

5A1 to 943

1.5.8

11/08/2010

Correction of wrong value in Cross Interference table. Value for

1.5.9

01/10/2013

Converted manual from Quark to MS Word. A

dded statement

Phone: 888.367.4286, 281.367.4100 • Fax: 281.292.2860 •

www.detcon.com

•

sales@detcon.com

18.0 WARRANTY

Detcon, Inc., as manufacturer, warrants each new electrochemical toxic gas plug-in sensor cell, for a specified period under the conditions described as follows: The warranty period begins on the date of shipment to the original purchaser and ends after the specified period as listed in the table in Section 4.0. The sensor cell is warranted to be free from defects in material and workmanship. Should any sensor cell fail to perform in accordance with published specifications within the warranty period, return the defective part to Detcon, Inc., 4055 Technology Forest Blvd. Suite 100, The Woodlands, Texas 77381, for necessary repairs or replacement.

19.0 SERVICE POLICY

Detcon, Inc., as manufacturer, warrants under intended normal use each new DM-500IS series plug-in signal transmitter Control Circuit and intrinsically safe Sensor Head circuit to be free from defects in material and workmanship for a period of two years from the date of shipment to the original purchaser. Detcon, Inc., further provides for a five year fixed fee service policy wherein any failed signal Transmitter shall be repaired or replaced as is deemed necessary by Detcon, Inc., for a fixed fee of $65.00. Any failed intrinsically safe Sensor Head circuit shall be repaired or replaced as is deemed necessary by Detcon, Inc., for a fixed fee of $55.00. The fixed fee service policy shall affect any factory repair for the period following the two year warranty and shall end five years after expiration of the warranty. All warranties and service policies are FOB the Detcon facility located in The Woodlands, Texas.

20.0 Revision History

000006-132

CO interfering with C2H3CL was 12150=100, changed to 200=100

about maximum distance of sensor separation (Section 5.5)

Shipping Address 4055 Technology Forest Blvd. Suite 100,., The Woodlands Texas 77381

DM-600IS Instruction Manual Rev 1.5.9 Page 37 of 37

Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067

Detcon DM-600IS User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual