Operation - Dräger PIR 7000 Instructions For Use Manual

When mounting the junction box and gas transmitter, make
sure that the junction box is not subject to mechanical
stress at the location of the connection.
Close any unused cable entry openings at the junction
box using approved plugs.
For connection in the "flameproof enclosure" (Ex d) or
"Explosion Proof" type of explosion protection
If required: Mount the connecting piece approved for the
corresponding type of explosion protection between the
junction box and the gas transmitter.
For connection in the "increased safety" (Ex e) type of
explosion protection
The wall thickness of the junction box must be 4.2 mm to
12 mm at the mounting surface.
The sealing surface must be even in an area with a diam-
eter between 28 mm and 32 mm to ensure a perfect seal-
ing of the supplied O-ring.
Secure the M25 nut against self-loosening.
Connection with junction box PIR 7000 (E AC 0000)
The junction box PIR 7000 is designed to be connected to
the Dräger PIR 7000 / Dräger PIR 7200 gas transmitter with
M25 threaded connection (IDS 011x). The cable has a
diameter of 7 to 12 mm. Conductors with max. 2.5 mm
2
2 x 1 mm may be connected. The tightening moment for
the terminal screws is at least 0.6 Nm.
The cover screws must be tightened with a torque of at
least 1.5 Nm.
Fixing with mounting set PIR 7000 (68 11 648)
Make ready the corresponding screw fixing. Hang in the
gas transmitter with the bracket and tighten the screws.
– The gas transmitter must be installed so that the status
indicator lights between the housing and the splash
guard are clearly visible.
Electrical Installation
When installing, the entire wiring must meet currently
valid national regulations regarding the installation of
electrical devices, and - if necessar y - the national
regulations regarding the installation in potentially
explosive atmospheres. In case of doubt, the official
responsible authorities are to be consulted prior to
installation of the device.
Devices with a measuring function for explosion pr o-
tection in accordance to Directive 94/9/EC, Appendix
II, 1.5.5 to 1.5.7, must be operated with a power sup-
ply that does not transfer power interruptions on the
primary side of up to 10 ms to the secondary side.
– Laying with 3 or more wire lines. Recommendation:
shielded wire, shield braiding with an average coverage
of ≥80 %. Cable screen connection: recommended at
the central device.
To ensure proper operation of the gas transmitter, the
impedance of the 4 to 20 mA signal loop must not exceed
500 ohms. Depending on the operating voltage and on the
application (e.g. HART operation), certain minimum imped-
ances must be observed (see the Technical Handbook,
section "Electrical Installation"). The power leads must
have a sufficiently low resistance to ensure the correct sup-
ply voltage at the gas transmitter.
WARNING: Do not connect the device to the power
supply before the wiring is complete and has been
tested.
Electrically connect the gas transmitter to a clean earth.
Connect the gas transmitter.
Colour code of the connection leads at the gas transmitter:
red = + (DC supply: 9 to 30 V DC or 13 to 30 V
DC for HART operation; power consump-
tion: max. 7 W)
black = – (common reference potential)
brown = 4 to 20 mA and HART signal output
white = Serial port
green/yellow = Earth point
2
or
Check the electrical installation to ensure that all wires
have been correctly connected.
Do not shorten the white connection lead when the serial
interface is not in use except where there are additional
terminals in the junction box.
Secure the connection leads within the junction box me-
chanically.
If the installation has been laid within protective conduits:
Cast the protective conduit sealings and allow then to
harden.
Connection diagram for power source operation
+
R
S
–
+
power supply
–
central device, e.g.
Dräger REGARD
Connection diagram for current sink operation
+
R
S
–
power supply
central device, e.g.
Dräger REGARD
Accessories
Installation corresponding to the user manual enclosed
with the accessories.
Depending on the accessories that have been in-
stalled, there may be deviations to the performance
characteristics!
Among other things, the following accessories are offered
for the Dräger PIR 7000 / Dräger PIR 7200 gas transmitter
(for additional accessories, refer to the Technical Hand-
book):
Designation
Mounting Set PIR 7000
Duct Mount Set PIR 7000
Splash Guard PIR 7000
Insect Guard PIR 7000
Hydrophobic Filter PIR 7000
Calibration Adapter PIR 7000
Status Indicator PIR 7000
Flowcell PIR 7000
Remote Test Adapter PIR 7000
Process Adapter PIR 7000
1 2 3 4 5 6
Process Cuvette PIR 7000
Magnetic Wand
USB PC Adapter PIR 7000
Junction Box Ex e PIR 7000 (EAC0000)

Operation

Beginning Operation
The gas transmitter is set on delivery in accordance to the
details in the table "Configuration of the gas transmitter." on
page 12 or built-to-order (if requested). The configuration
is shown on the device label. The device has been factor y-
calibrated, so after finishing the electrical installation, the
device is ready to operate.
1 2 3 4 5 6
+
–
Order No.
68 11 648
68 11 850
68 11 911
68 11 609
68 11 890
68 11 610
68 11 625
68 11 490
68 11 630
68 11 915
68 11 415
45 43 428
68 11 663
68 11 898
9