Teledyne Detcon DM-700 Toxic Gas Detector

Model 700 Series Sensors are a non-intrusive “Smart” sensors designed to detect and monitor oxygen and Toxic Gases in air using electrochemical sensor technology.

The intelligent plug-in, field replaceable cell provides automatic recognition of gas type and range, and features over-sized gold-plated connections that help prevent corrosion.

The Model 700’s rugged framework includes an intrinsically safe electro-polished 316 stainless steel housing with fully encapsulated electronics and dual layer surge protection.

This innovative design virtually eliminates sensor failure due to water ingress, corrosion, vibration, and transient spikes. A primary feature of the Model 700 is embedded intuitive software that simplifies operator interface by guiding the user through routine calibration, configuration, and fault diagnostic functions using a built-in alpha/numeric display.

The Model 700 is equipped with standard analog 4-20mA, and Modbus™ RS-485 outputs. Among its unique features is a wireless option that can be used with Detcon’s SmartWireless® product line. Additional integration options include a Remote Alarm Module (RAM) and HART.

Detcon’s toxic gas and oxygen sensors have a long shelf life and are supported by an industry-leading warranty

FEATURES:

Failsafe User-Friendly Interface

• LED Display (With Antiglare Cover)
• Full Text Display Method
• Non-intrusive Interface
• Auto Zero/Auto Span
• Pre-emptive Fault Diagnostics

Environmentally Bulletproof

• Electropolished 316SS Construction
• 100% Epoxy Encapsulated Circuitry
• Bulletproof I/O Protection
• Water-proof, Corrosion-Proof, Vibration-Proof

Modular and Serviceable

• Modular Design
• Plug and Play Components
• Quick Thread Release Sensor Endcap (Allen Wrench only required)
• Integral Calibration Port

APPLICATIONS:

• Oil & Gas
• Chemical Plants
• Food & Beverage
• Steel Mills
• Pulp and Paper
• Refineries
• Wastewater Treatment Plants
• Utilities

PART NUMBER	GAS	MEASURING	ACCURACY	RESPONSE TIME
967-12EG91-100	Acetylene	0-100 ppm	±2% FS	T90≤140 seconds
967-505091-100	Ammonia	0-100 ppm	±2% FS	T90≤90 seconds
967-191991-001	Arsine	0-1 ppm	±2% FS	T90≤60 seconds
967-747591-005	Bromine	0-5 ppm	±2% FS	T90≤60 seconds
967-12EB91-100	Butadiene	0-100 ppm	±2% FS	T90≤140 seconds
967-444491-100	Carbon Monoxide	0-100 ppm	±2% FS	T50≤10 sec./ T90≤30 sec.
967-747491-010	Chlorine	0-10 ppm	±2% FS	T90≤60 seconds
967-747691-050	Chlorine Dioxide 700	0-50 ppm	±2% FS	T90≤120 seconds
967-777791-001	Chlorine Dioxide 701	0-1 ppm	±2% FS	T90≤60 seconds
967-192191-005	Diborane	0-5 ppm	±2% FS	T90≤60 seconds
967-12EO91-100	Ethanol	0-100 ppm	±2% FS	T90≤140 seconds
967-12ED91-100	Ethylene (*See Note 2)	0-100 ppm	±2% FS	T90≤140 seconds
967-12EJ91-100	Ethylene Oxide	0-100 ppm	±2% FS	T90≤140 seconds
967-272791-001	Fluorine	0-1 ppm	±2% FS	T90≤80 seconds
967-12EP91-100	Formaldehyde	0-100 ppm	±2% FS	T90≤140 seconds
967-232591-002	Germane	0-2 ppm	±2% FS	T90≤60 seconds
967-070791-01P	Hydrogen (1%)	0-1% volume	±2% FS	T90≤60 seconds
967-050591-04P	Hydrogen (4%)	0-4%	±2% FS	T90≤60 seconds
967-848491-100	Hydrogen PPM	0-100 ppm	±2% FS	T90≤30 seconds
967-090891-030	Hydrogen Bromide	0-30 ppm	±2% FS	T90≤70 seconds
967-090991-030	Hydrogen Chloride	0-30 ppm	±2% FS	T90≤70 seconds
967-131391-030	Hydrogen Cyanide	0-30 ppm	±2% FS	T90≤40 seconds
967-333391-010	Hydrogen Fluoride	0-10 ppm	±2% FS	T90≤90 seconds
967-242491-100	Hydrogen Sulfide	0-100 ppm	±2% FS	T50≤10 sec./ T80≤30 sec.
967-303091-100	Hydrogen Sulfide (DC)*	0-100 ppm	±10% applied gas concentration or ±3 ppm, whichever is greater	T20 ≤ 20sec
967-303091-050				T50 ≤ 45 sec
967-303091-025				T90 ≤ 60 sec
967-12EE91-100	Methanol	0-100 ppm	±2% FS	T90≤140 seconds
967-12EK91-100	Methyl Mercaptan	0-100 ppm	±2% FS	T90≤45 seconds
967-949491-100	Nitric Oxide	0-100 ppm	±2% FS	T90≤10 seconds
967-646491-010	Nitrogen Dioxide	0-10 ppm	±2% FS	T90≤40 seconds
967-341520-025	Oxygen	0-25% volume	±1% FS	T90≤10 seconds
967-393991-001	Ozone	0-1 ppm	±2% FS	T90≤120 seconds
967-192091-005	Phosphine	0-5 ppm	±2% FS	T90≤30 seconds
967-232391-050	Silane	0-50 ppm	±2% FS	T90≤60 seconds
967-555591-020	Sulfur Dioxide	0-20 ppm	±2% FS	T90≤20 seconds

*Note: Acetylene can only be used with a Group A enclosure.
*Note2: This product is a safety device to detect hazardous conditions, and is not intended for process control application in fruit ripening operations.
*Note3: DC=Desert Climate Sensors are 3rd-party test report to ISA 92.00.01 2010 standard

 

SYSTEM SPECIFICATIONS:

Sensor Type
Continuous diffusion/adsorption
3-electrode electrochemical cell
Plug-in field replaceable Intelligent Type

Outputs
Linear 4-20 mA DC
RS-485 MODBUS-RTU

Electrical Classification
Explosion proof
 _CCSA_US
Class I, Division 1, Groups B, C, D ()
Class I, Zone 1, Group IIC

ATEX
II 2 G Ex d ib IIB + H2 T4 GB
Ingress Protection
NEMA 4X, IP66

Safety Approvals
_CCSA_US
ATEX
CE Marking
SIL2 Certified to IEC 61508

 

MECHANICAL SPECIFICATIONS:

Dimensions
7″H x 2.2″ Dia.; 178mmH x 65mm Dia. (sensor assembly only)
11″H x 6.1″W x 3.75″D; 280mmH x 155mmW x 96mmD (with junction box)
Mounting holes (J-box) 5.5″; 140mm center to center

Weight
2 lbs; 0.907kg (sensor only)
6 lbs; 2.72kg (w/aluminum j-box)
9 lbs; 4.08kg (w/stainless steel j-box)

 

ELECTRICAL SPECIFICATIONS:

Power Input
11 – 30 VDC

Power Consumption
Normal operation = 30mA @ 24V (<0.75 watt)
Maximum = 50mA @ 24V (1.2 watts)

Inrush Current
500mA @ 24V (typical)

RFI/EMI Protection
Complies with EN50270

Analog Output
Linear 4-20mA DC (1,000 ohms max loop load @ 24VDC)
0mA All Fault Diagnostics
2mA In-Calibration
4-20mA 0-100% full-scale
22mA Over-range condition

Serial RS-485 Output
RS-485 Modbus™ RTU

Baud Rate
9600 BPS (9600, N, 8, 1 Half Duplex)

Status Indicators
4-digit LED display with gas concentration
Full-script menu prompts for AutoSpan,
Set-up Options, and Fault Reporting

Faults Monitored
Loop, Input Voltage,
Missing Sensor, Zero,
Processor, Memory, Calibration

Cable Requirements
Power/Analog
3-wire shielded cable
Maximum distance is 13,300 feet with 14 AWG

Serial Output
2-wire twisted-pair with ground, shielded communication
cable specifically for use with RS-485 installations
Maximum distance is 4,000 feet to last sensor

I/O Protection
Over -voltage, Miswiring, EMI/RFI Immunity

Product Data Sheet