en
|
Explosion proof (Ex d) installation - without Docking Station
With a sealed conduit or approved cable gland, the instrument
can be connected to a Dräger control unit or a Programmable
Logic Controller (PLC).
If the 4 - 20 mA interface is used, the current between 0 and
3.5 mA must be monitored. Currents between 0 and 3.5 mA
can indicate a special state.
The instrument is designed to be installed in permanent
locations and is approved for use in hazardous, classified
areas.
®
Polytron
8100 EC-specific:
®
– Polytron
8100 EC is a combined intrinsically safe /
explosion proof instrument for continuous monitoring of
toxic gases or oxygen in the ambient air.
®
Polytron
8200 CAT-specific:
®
– Polytron
8200 CAT with catalytic DrägerSensor DQ or LC
is an explosion proof instrument for the continuous
monitoring of combustible gases and vapors containing
hydrocarbons and non-hydrocarbons (e.g. hydrogen or
ammonia) in ambient air.
®
Polytron
8310 IR-specific:
®
– Polytron
8310 IR with infrared DrägerSensor IR is an
explosion proof instrument for the continuous monitoring
of combustible gases and vapors containing hydrocarbons
in ambient air.
®
Polytron
87x0 IR-specific:
®
– Polytron
8700 IR with PIR 7000 is an explosion proof
instrument for the continuous monitoring of combustible
gases and vapors containing hydrocarbons.
®
– Polytron
8720 IR with PIR 7200 is an explosion proof
instrument for the continuous monitoring of carbon
dioxide.
3.5
Approvals
3.5.1 ATEX, IECEx, UL, CSA
See a sample of approval label on the fold-out page. There is
also a printout of the approval label inside the shipping box of
the instrument.
3.5.2 Marking
The marking is reproduced on a separate piece of paper
shipped with the instrument.
Serial Number key: The third letter of the serial number
specifies the manufacturing year: M = 2019, N = 2020, P =
2021, R = 2022, S = 2023, T = 2024, U = 2025, W = 2026, X =
2027, Y = 2028, Z = 2029, etc. (Letters G, I, O, Q are omitted)
Example: Serial Number ARMB-0001: the third letter is M,
which means that the unit was manufactured in 2019.
4
Explosion proof (Ex d) installation
- without Docking Station
Obey the safety statements mentioned in 1.3 Mechanical
installation!
12
4.1
Mechanical installation without
Docking Station
The instrument can be mounted for measuring gases in
ambient air or inside of a duct/pipe.
1. Use M6 (1/4'') bolts with hex socket caps to mount the
enclosure to one of the following options.
Option
Mounting on a flat surface
Mounting on a pole
Mounting on a duct/pipe
4.2
Electrical installation without docking
station
For recommended tightening torques and admissible wire
specifications see 17.3 Cable specifications.
4.2.1 Wiring tables
4-20mA / HART® interface
Pin
Mark
Function
1
PWR+ V+
2
PWR- V-
3
PWR- V-
To be used when the instrument is not pow-
ered by the control unit (separate power sup-
ply), see figures I3 and H1 on the fold-out
page.
4
4-
4 to 20 mA signal (Operation as source or
20mA
sink)
5
PE
Protective earth
Optional PE for relay connection. Connecting
PE together with the 4-20mA analog output
may cause ground loops.
Fieldbus interface
Pin
Mark
Function
1
Data-
Signal Line A
A
2
Data-
Signal Line B
B
3
GND
Ground
4
SHIEL
Cable Shield
D
Pin
Mark
Function
1
PWR+ V+
2
PWR- V-
Instructions for use
Accessory
Drilling template: 4544299
Additionally for Polytron
87x0 IR: Spacer 6812617
Pole mount kit: 4544198
Duct mount kit: 6812725
®
For Polytron
87x0 IR::
6812300
®
|
Dräger Polytron
8000 Series
®