HRX-OM- T002
Chapter 3 Transport and Setting Up
HRS090 Series
3.5
Circulating Fluid Supply
3-31
3.5 Circulating Fluid Supply
Turn the tank lid anticlockwise to open. Supply the circulating fluid up to the
“H” mark on the fluid level indicator. Use tap water which satisfies the water
quality standard shown in
1, or a 15% aqueous solution of ethylene
glycol.
Fig. 3-21
Circulating fluid fill
【
Tips
】
Supply the circulating fluid to the tank directly with option J [automatic fluid
filling] when the tank is empty. Supply the circulating fluid to the empty tank
by only automatic fluid filling,
it causes the alarm “AL01; Low level in tank".
When the circulating fluid temperature is lower than 10 deg. C, use
15% aqueous solution of ethylene glycol. Otherwise it may cause
icing of the fluid.
Tank lid
Circulating fluid fill
Liquid level
If tap water is used, refer to 8.1Quality Control of Circulating Fluid
and Facility Water.
If 15% ethylene glycol aqueous solution is used, dilute pure
ethylene glycol with water. Additives such as antiseptics cannot
be used.
If deionized water is used, the conductivity should be 1
μS/cm and
higher (Electrical resistivity: 1M
Ω
･
cm and lower).
Check the drain port is closed by the valve to prevent the supplied
circulating fluid from draining out.
Supply the circulating fluid up to the “H” mark on the tank.
Operation will stop when the fulid level falls lower than “L”.
