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Connect to the sampler
Connect the cable from the module to the AUX I/O port on the sampler. Refer to
Figure 6 Connect to the sampler
Optional connections
Wiring for flow pacing
Electric shock hazard. Install low voltage wiring only on the right side of the high-voltage barrier. Do not
mix high and low voltage wiring.
The sampler can connect to a flow device to collect samples at specified flow-volume intervals. When
the auxiliary port on the sampler is in use for pressurized sampling, connect the flow device to the
low-voltage connections in the module. The electrical signal from the flow device can be a pulse
signal, contact closure or 4–20 mA current. Do not connect more than one signal type.
Cables that connect to the TB1 terminal block and are longer than 3 meters (10 ft) must have a
shield. Connect the cable shield conductor to protective earth ground. To prevent an earth ground
loop current, connect the shield only at one end of the cable. For more information, refer to the
shield/drain signal description in
Only use a 1.31 to 0.13 mm
1. Prepare the wires as shown in
2. Connect one of the signal types that follow from the device to the low-voltage block (TB1):
Option
Description
Pulse
Connect between the pulse/mA input and common terminals.
Contact
Connect between the pulse/mA input and 12/15 VDC terminals.
closure
4–20 mA
Make a current loop between the 4–20 mA transmitter and the module as follows:
• Self-powered 4–20 mA transmitters: Connect between pulse/mA input (+) and common
• Externally-powered 4–20 mA transmitters: Connect between pulse/mA input (+) and
• Sampler controller-powered: Connect between 12/15 VDC (+) and pulse/mA input (–)
3. Tighten to 0.23 to 0.25 Nm (2 to 2.2 in-lbs).
12 English
C A U T I O N
Table 3
on page 16.
2
(16 to 26 AWG) wire.
Figure
7.
(–) terminals as shown in
common (–) terminals as shown in
terminals as shown in
Figure
Figure
8.
Figure
9.
10.
Figure
6.
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