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Isco 4700 Refrigerated Sampler
Section 2 Installation
2.8.2 Other Device
Connections
Figure 2-13 4700 Sampler unterminated connect cable
Figure 2-14 Quick disconnect box 60-2004-228
2-16
You can connect the sampler to receive a 4-20 mA signal from an
external device, including Isco's 2108 and accQcomm™ analog
output modules. You can also connect the sampler to a non-Isco
device to receive flow pacing and enable pin signals, to send
sample event marks and alarm signals, or to supply 12 VDC
power.
All of these types of connections use the optional unterminated
connect cable, P/N 68-4700-020 (Figure 2-13). This 3 m (10 ft)
cable is unterminated at the device end to allow wired connec-
tions to compatible circuits. Refer to Table 2-3 for wire identifi-
cation and connection details.
To sampler
Risk of equipment damage. Only experienced electronic tech-
nicians should make the connections to an external device
using cable 68-4700-020.
To connect the external device, refer to Table 2-3 and select the
appropriate wires. Splice the wires by soldering or using crimped
connectors. Trim back the tinned ends of any unused wires and
provide appropriate electrical insulation. To complete the con-
nection, be sure to protect it from the environment. Running the
cables through conduit and making the connections inside a
watertight electrical box generally provides adequate protection.
Note
The Isco Quick Disconnect (Q.D.) box, P/N 60-2004-228, can
provide a convenient, watertight connection to wiring from a
non-Isco device. The sealed IP67 (NEMA 4x) enclosure con-
tains seven terminal blocks and is equipped with a mounting
plate. The hazardous location rating of Q.D. box does not
apply when used with an Isco sampler.
To other device
CAUTION
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