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3.6.2 Select the voltage
To avoid serious damage to the instrument, make sure that the line voltage is set correctly.
The instrument is set to 115-volt operation at the factory. To change the line voltage to 230-volt
operation, refer to the steps that follow.
1. Use a T20 torx wrench to remove the customer access cover.
2. Move the conversion switch to the 230 V position.
line voltage selector.
3.6.3 Connect the alarm relays
Fire hazard. Relay loads must be resistive. Always limit current to the relays with an external fuse or
breaker. Obey the relay ratings in the Specifications section.
The analyzer can function as sample point alarms (high or low), as a system warning indicator or a
system alarm indicator. The analyzer contains two alarm relays for use with either high voltage
(greater than 30 V-RMS and 42.2 V-PEAK or 60 VDC) or low voltage (less than 30 V-RMS and
42.2 V-PEAK, or less than 60 VDC). Do not configure a combination of both high and low voltage.
For wiring information, refer to
The relay connector accepts 18-12 AWG. The application will determine the wire gauge needed. Wire gauge less
than 18 AWG is not recommended.
Terminal block
J1
J2
3.6.4 Connect the recorder output
Electrocution hazard. Always remove power to the instrument before making electrical connections.
The recorder output is a 4–20 mA current source output. Use twisted pair shielded wire for the
recorder connections. Use of non-shielded cable may result in radio frequency emission or
susceptibility levels higher than the allowed levels. Connect the shield either at the recorder end or
the analyzer end. Do not connect the shield at both ends of the cable. Wire insulation must be seated
against the connector. Do not leave any of the bare wire exposed.
To connect the recorder output, refer to
Recorder wires
Recorder +
Recorder –
Shield
N O T I C E
C A U T I O N
Figure 8
on page 14 and
N O T I C E
Table 2 Relay wiring
Terminal 1
COM
Normally open (NO)
COM
Normally open (NO)
D A N G E R
Figure 8
on page 14 and
Table 3 Recorder wiring
Figure 8
on page 14 shows the location of the
Table
2.
Terminal 2
Table
3.
Circuit board markings
+
–
GND
Terminal 3
Normally closed (NC)
Normally closed (NC)
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