<PG400 Pulse Generator for Clean Unit>
11
IM 19C01B05-01EN
2nd Edition : Jul. 06, 2021-00
2. Installation and Wiring
This chapter describes wiring and installation.
2.1 Installation
The PG400 is weatherproof and can be installed both indoors and outdoors. It should, however,
be installed as close as possible to the holders for pH meters or turbidity detectors. Avoid long
cable runs of oscillator cables between the instrument and detectors.
Select an installation site where the ambient temperature and humidity are within the limits of the
instrument specifications as below. If the instrument is installed outdoors and exposed to direct
sunlight, a sun shade hood should be used.
Ambient Operating Temperature:
-15 to +55 ºC
Storage Temperature:
-30 to +70 ºC
Humidity:
10 to 90% RH at 40ºC (Non-condensing)
Select an installation site that meets the following conditions.
• Mechanical vibrations and shocks are negligible.
• No relay switch and power switch are installed close to the converter.
• There is space for cable connection beneath the cable glands.
• Not exposed to direct sunlight or severe weather conditions.
• Maintenance is possible.
• No corrosive atmosphere.
The PG400 has following mounting possibilities. See Dimensions for information on the hardware
for mounting.
• Panel mounting using optional mounting hardware (/PM or /UM)
• Wall mounting using optional mounting hardware (/U or /UM)
• Pipe mounting using optional mounting hardware (/U or /UM) on a horizontal or vertical
pipes (Nominal size: 50A)
When replacing PUS400G or TUS400G with PG400, you can continue to use the existing panel
holes or installation holes by using the hardware for replacement.
• Panel mounting using optional mounting hardware (/PM1)
• Wall mounting using optional mounting hardware (/U1)
The universal mounting kit (/UM) contains the pipe and wall mounting hardware (/U) and the
panel mounting hardware (/PM). Some can be left unused.
2.2 Wiring
Loosen the screws at the four corners of the front cover and open the front cover to the left.
For replacement, screws (Part No. K9699PL : M5 screw + spring) are required.
Before you remove the protect cover to wire output terminals and power cable, be sure to shut down
the power supply.
Do not allow cables to cover the LED light.
WARNING
Always place the protect cover over the terminals to avoid electric shock.
CAUTION
To install the front cover, tighten each screw evenly until every four of them is completely
fastened. For example turn each screw in two times and repeat it until all of the screws are
evenly tightened up.
Do not use an electric screwdriver with high revolutions such as 1000 rpm. The revolutions
of the electric screwdriver should be less than 400 rpm.
Tighten the four front cover screws to the torque of 1.5 to 1.6 N·m. for complying with IP66 or Type4X)
