12
Instructions for use
|
Dräger PointGard 2000 Series
en
|
Installation of sensors
4. Close the instrument.
4.5.3 4-20mA Interface
The 4-20mA interface allows transmitting the measured
values to a control unit. Only an operation as current source is
possible.
3-pin connector
A 3-pin connector is provided for the connection of the 4-20
mA interface wiring.
Wiring table 4-20 mA interface connection
Connecting the 3-pin connector
1. Route the 4-20mA interface wires through the
corresponding cable gland.
2. Remove the bridge between pin 1 and 3 of the 3-pin
connector.
3. Insert the wires in the provided 3-pin connector
a. Check the correct connection with the wiring table and
the marks on the circuit board.
4. Secure the cable cores by tightening a cable tie around
them.
5. Plug connector into the socket and tighten screws with
correct torque (1.9 ... 2.2 Lbs. In. / 0.22 ... 0.25 Nm).
6. Close the instrument.
NOTICE
Unless special measures are taken (e. g. capacitive earthing),
the shield must only be connected at one end.
NOTICE
If the 4-20 mA interface is no longer used, reinstall the bridge
between pin 1 and 3 of the 3-pin connector.
4.6 Connecting the instrument to a
controller from Dräger
Please refer to the Instructions for Use which was included
with the Dräger controller.
4.7 Installing software dongles
PointGard 2100 EC-specific:
1. Open the instrument.
2. Insert the dongle with the Dräger logo facing upwards in
the slot of the PCB unit on the back of the cover.
3. Close the instrument.
5 Installation
of
sensors
5.1 Installing
EC
sensor
For figures, refer to the fold-out page.
This point is only valid for PointGard 2100 EC
1. If the instrument is already in operation, activate the
function to change the sensor (Sensor change function).
Otherwise, a fault is displayed when the sensor is
deplugged.
2. Loosen set-screw, 2mm Allen screw.
3. Unscrew bayonet ring and remove blank or old sensor.
4. Insert sensor into the opening. The Dräger logo on the
sensor must point to the mark on the sensing head
housing.
5. Lock sensor with bayonet ring.
6. Tighten set-screw.
Mandatory for remote applications in zone 22
5.2 Installation of remote sensing heads
Depending on the explosion protection type, different sensing
heads are used. For installation of the different sensing
heads, refer to the corresponding instructions for use for the
respective sensing head.
Remote versions with explosion protection "explosion
proof (Ex d)"
Remote versions with explosion protection "Increased
safety (Ex e)"
35156
Pin
Mark
Function
1
P
4 to 20 mA
2
PE
Shield
3
M
4 to 20 mA signal -
1
2
3
Remote sensing head for
EC sensor (not for hazard-
ous areas)
Sensing head IFU part
numbers
PointGard 2100 EC
EC sensing head remote
(9033247)
PointGard 2200 CAT
PointGard 2200 CAT Remote
DSIR
PointGard 27x0 IR
Junction Box stainless steel
or aluminum (4544286)
Remote sensing head for
EC sensor (not for hazard-
ous areas)
Sensing head IFU part
numbers
PointGard 2100 EC
EC sensing head remote
(9033247)
PointGard 2200 CAT
PointGard 2200 CAT Remote
DSIR
Polytron SE Ex sensing
heads (9033888)
PointGard 27x0 IR
PIR 7x00 (9023885)
