Hach-Lange SIGMA SD900 Refrigerated Sampler and All Weather Refrigerated Sampler User Manual - Manual (Page 42)

40
Installation
3.5.1.1 Refrigerated sampler AC power installation
DANGER
Electrocution Hazard. The refrigerated sampler is not suitable
for outdoor installations. In addition, if the sampler is installed
in a wet or potentially wet location, a Ground Fault Circuit
Interrupter (GFCI) is required for both the sampler and the
SD900 power supply connections.
Use the AC power cords to supply AC power to the controller and
the refrigerator. The sampler controller operates on a 15 VDC
which is supplied by a power converter.
Prerequisites:
Important Note: All AC mains power connections require a 15 A
(max) circuit breaker and a good earth ground for both safety and
proper performance.
Important Note: Use only the AC power supply that is specified for
this sampler.
Important Note: Be sure that access to the power cord plugs is not
blocked or obstructed. Since the sampler refrigerator and power
supply are not fitted with power switches, the cord plugs must be
used as the local disconnect.
Installation procedure:
1. Remove the power supply retainer (see Figure 6 on page 21 ).
2. Place the power supply in the compartment behind the
controller.
3. Connect the cable from the power supply to the power
connector on the controller.
4. Position the power supply retainer over the power supply and
secure with the hold-down latches.
3.5.1.2 AWRS power connections
DANGER
Electrocution Hazard. If installed outdoors or in any wet or
potentially wet location, a Ground Fault Circuit Interrupter
(GFCI) is required for the sampler. If the sampler is installed
outdoors, over-voltage protection is required.
Important Note: This product is not intended for use with a
split-phase (3-wire, single-phase, mid-point neutral) AC power
system. Use this product only with a 3-wire (Hot/Neutral/Ground)
polarized AC power system. Be sure that access to the power cord
plug is not blocked or obstructed. The AWRS sampler is not
provided with a power switch. The cord plug serves as the local
disconnect.
The AWRS sampler is suitable for outdoor use. The SD900
controller gets its power directly from the AWRS sampler.