Honeywell 3000MkII, 3000MkIII Specifications
Series 3000 MkII and MkIII
2-wire loop powered toxic and
Oxygen gas detector for use in
potentially explosive atmospheres
- explosion proof and intrinsically
safe versions
Series 3000 MkII
and MkIII
Reliable detection
• Proven electrochemical
sensing technology
• Uses Surecell™ electrochemical cells,
ideal for hot and humid environments
• Long-life sensing elements
• Patented ‘Reflex’ sensing element
verification diagnostics
Reduced installation costs
• Integral surface mounting lugs
• Optional horizontal or vertical pipe
mounting bracket
• Flameproof transmitter allows field
wiring to be run along with other
non-IS instruments
• Plug-in sensor removes wiring
• Can be retrofitted in place of Series 2000
Reduced commissioning costs
• Sensor recognition feature auto
configures transmitter
• Non-intrusive configuration
• Plug and play factory configured sensors
Reduced maintenance costs
• IS sensor connection permits hot swap,
reducing downtime
• User programmable calibration
frequency
• Integral fault diagnostic software
• Menu/icon driven calibration
procedure
Regulatory compliance
• European (ATEX)
• US (UL)
• Canadian (c-UL)
• South America (Inmetro)
• International (IECEx)
Range of optional accessories
• Remote sensor mounting kit
• Duct mounting kit (for H2, CO
and H2S only)
• Calibration cup to apply test gas
• Collecting cone
Typical applications
• Exploration and drilling platform
• Production platforms
• Onshore oil and gas terminals
• Refineries and chemical plants
• Power plants
• Waste water facilities
• Utilities
The Series 3000 range of transmitters provide
comprehensive monitoring of toxic and Oxygen gas
hazards in potentially explosive atmospheres. Suitable
for mounting both indoors and out, they are available in
two versions and offer excellent versatility. The MkII is
contained in a flameproof housing, has an intrinsically safe
sensor connection and is for use in predominantly Zone 1
applications. However with the use of the optional remote
mounting kit the sensor of the MkII can be mounted in a
Zone 0 environment. The MkIII is for use with a separate
suitable IS barrier allowing the complete transmitter to be
used in Zone 0 applications.
These low powered gas detectors all feature a loop
powered 4-20 mA connection, making them ideal for
both new and retrofit installations. Users can configure
the detector through the use of the easy to read LCD
and intuitive interface while fault diagnostic software
and a programmable calibration period greatly simplify
maintenance procedures.
The intrinsically safe smart sensors are
supplied pre-configured and can be ‘hot
swapped’ without having to remove power to
the detector, saving time and money during
commissioning and routine servicing. A remote
sensor mounting kit is available that allows the
sensor to be mounted up to 15m (50ft) from
the transmitter, making it ideal for operation in
areas that are difficult to access.
Series 3000 is supplied with all necessary
accessories for easy installation. The detector
can be wall mounted using the integral
mounting lugs or pipe mounted (horizontal or
vertical) using the optional pipe mounting kit.
Electrical installation is made using the
2 x M20 cable entries (ATEX/IECEx version) or
2 x ¾”NPT conduit entries (UL/c-UL versions).
A suitable blanking plug is also supplied to
seal any unused entries. A weatherproof cap
is included for use in the harshest outdoor
conditions.
Installation
Controller Detector
V
Mechanical Installation Options
Series 3000 MkII and MkIII are designed for use
in potentially explosive atmospheres. As such,
installation should follow national guidelines
using suitable mechanically protected cable and
glands (M20 or ¾” NPT) or conduit (¾” NPT).
Use 0.5mm
cross sectional area cable as needed to ensure
minimum operating voltage at the detector,
depending on installed cable length. Various
accessories are available for different applications.
2
(20AWG) to 2.0mm2 (~14AWG)
Pipe Mounting Wall MountDuct Mount
Remote Mounting
Dimensions
Ø8.5
80
106
164
Wiring Schematics Series 3000 MkII
Detector supply V
• 17Vdc (min) to 32Vdc (max)
Maximum detector signal I
• 22mA (over range)
d
m
Cable resistance Rc
• Subject to cable type
Load resistor of control panel R
• Assumed 33Ω (min) or 250Ω (max)
• Subject to controller manufacturer
Controller supply voltage V
• Subject to controller manufacturer
• Assumed nominal of 24Vdc
c
Remote Mounting Arrangement
12
201
Note: All dimensions
99
Controller
R
+VE
c
L
Signal Signal
R
L
-VE
c
1
I
m
2
3
+VE
1
V
d
Signal
2
3
+VE
R
L
V
c
-VE -VE
R
c
1
I
m
2
in mm (1" = 25.4mm)
Detector
+VE
1
2
V
d
Typical Maximum Installed Cable Lengths Series 3000 MkII
The maximum cable length between a controller and detector is dependent upon:
• The minimum guaranteed supply voltage to the detector at
the controller (V
• The minimum operating voltage of the detector (V
).
C
• The maximum current draw of the detector (I
• The input impedance of the controller (R
• The resistance of the cable (R
Using the example values, the table opposite shows typical cable lengths.
For a specific application, the cable manufacturer’s resistance data for a specific cable type
must be used.
A cable length calculation formula can be found in the product technical manual.
Series 3000 MkII Maximum Cable Length shown in km (mi)
Cable Size Cable
2
0.5mm
)
d
)
m
)
L
)
C
(20AWG*) 36.8 (59.2) 3.9 (2.4) 0.9 (0.6)
2
(17AWG*) 19.5 (31.4) 7.3 (4.5) 1.7 (1.1)
1.0mm
2
(16AWG*) 12.7 (20.4) 11.2 (7.0) 2.7 (1.7)
1.5mm
2
(14AWG*) 10.1 (16.3) 14.1 (8.8) 3.4 (2.1)
2.0mm
*Nearest equivalent
Resistance
Ω/km
R
c
(Ω/mi)
Cable distance km
(mi) where the Input
Impedance
= 33Ω
R
L
Cable distance km (mi)
where the Input
Impedance
= 250Ω
R
L
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