Power Supply Connector And Wiring Tables; Connecting The Power Supply Cable; Mounting The Instrument; Interface Connections - Dräger PointGard 2000 Series Instructions For Use Manual

4.3 Power supply connector and wiring
tables
A 3-pin connector (18) is provided to connect a power supply
cable.
Wiring table AC version
Pin Mark
1 L
2 PE
3 N
Wiring table DC version
Pin Mark
1 M / -
2
PE
3 P / +
4.4

Connecting the power supply cable

1. Open the instrument.
2. Route the power supply cable through the corresponding
cable gland (4).
3. Insert the braids of the power supply cable in the provided
3-pin connector (18) following the wiring tables and figures
A, B or C on the fold-out page.
– For the DC version of the instrument:
If a non-shielded cable is used or PE is not connected,
bridge pin 1 and 2 (see figure C on the fold-out page).
4. Tighten screws of the connector with correct torque (4.4 ...
5.3 Lbs. In. / 0.5 ... 0.6 Nm).
5. Secure the cable cores by tightening a cable tie around
them.
6. Plug the power supply connector (18) into the appropriate
power supply socket.
– For DC: Power supply socket 16
– For AC: Power supply socket 15
7. Tighten screws with correct torque (4.4 ... 5.3 Lbs. In. / 0.5
... 0.6 Nm).
8. Close the instrument.
4.5

Mounting the instrument

The instrument can be directly mounted through the internal
mounting holes or by using the optional stainless steel
mounting brackets (83 26 497).
Instructions for use |
Dräger PointGard 2000 Series
To mount the instrument without brackets:
1. Prepare an even surface following the assembly
1
2
3
4.6

4.6.1 Preparation for interface connections

1. Open the instrument.
Function
2. Remove the dome plug from the appropriate cable gland.
Line
Protective Earth
3. Tighten the counter nut with correct torque (13 +/- 4.4 Lbs.
Neutral
4. Strip wire insulation by 5 to 7mm.
5. Use a ferrule for stranded conductors.
Function
6. Proceed with the appropriate step.
V-
Protective Earth
V+

4.6.2 Relay connections

Relay connections allow triggering of external alarm devices.
9-pin connector
A 9-pin connector is provided for relay wiring.
Risk of electric shock
Voltage differences can cause insulation faults.
► Do not mix electric loads with different voltage types (AC
► Using DC loads, make sure that relay contacts only control
► Using AC loads, make sure that relay contacts are only
Risk of electric shock
Exceeding extra low voltage (ELV) can cause electric shocks.
ELV limit for AC ≤ 50 V
ELV limit for DC ≤ 120 V
► If ELV exceeds the limits, connect pin 2 (PE) of the power
Wiring table relay connection
With factory default settings and during normal operation, the
relays are energized. This provides "failsafe" operation.
instruction (90 33 793) or the dimensions indicated on the
back of the housing
– Keep enough space clear for maintenance purposes
and sensor change:
To the left: 200 mm / 8''
Downwards: 180 mm / 7''
– Mount the instrument using screws. For recommended
screw properties see 16.8.5 Mounting screws.

Interface connections

– For relay connections: Cable gland 5
– For 4-20mA interface connections: Cable gland 3
In. / 1.5 +/- 0.5 Nm).
Connecting relays
Connecting 4-20mA Inter-
face
WARNING
or DC).
devices with the same DC voltage rating (e. g. ≤120 V)
connected to devices sharing a common phase.
WARNING
supply connector (18) to protective earth.
Mounting and installation
4.6.2 Relay connections
4.6.3 4-20mA Interface
|
en
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