![Siemens 1PQ8 Скачать руководство пользователя страница 26](http://html.mh-extra.com/html/siemens/1pq8/1pq8_operating-instructions-and-installation-instructions_378977026.webp)
Table 4-1
Cooling water specification
Water analysis
Measured values
pH
> 7.5 - 10
Conductivity
< 600 µS/cm
Chloride (Cl
-
)
< 150 mg/l
Manganese (Mn
2-)
< 0.05 mg/l
Fluoride (F)
< 0.05 mg/l
Sulfate (SO
4
2-
)
< 150 mg/l
Copper (CU
2+
)
< 0.1 mg/l
Silicic acid
< 25 mg/l
Free carbon dioxide
Without
Total salts
< 1000 mg/l
Nitrate level
< 20 mg/l
Suspended matter
< 10 mg/l
Permanganate consumption
< 12 mg/l
Total hardness on German water hardness scale < 12
Carbonate hardness on German water hardness
scale
< 12
Ammonium content
< 10 mg/l
Iron content
< 0.2 mg/l
Note
Order-specific agreements
Observe any order-specific agreements regarding the cooling water specification. These might
deviate from the named cooling-water specification.
Note
Maintenance
The cooling system is maintenance-free provided cooling water of the specified quality is used.
4.5
Thermal motor protection
The machine is equipped with PTC thermistors for direct monitoring of the motor temperature
to protect the machine against overheating during operation. Plan a corresponding circuit for
monitoring.
See also
Preparations for use
4.5 Thermal motor protection
SIMOTICS TN Series N-compact 1LH8
26
Operating Instructions 06/2017
Содержание 1PQ8
Страница 2: ...06 06 2017 10 16 V15 00 ...
Страница 80: ...Start up 7 8 De energizing SIMOTICS TN Series N compact 1LH8 80 Operating Instructions 06 2017 ...
Страница 92: ...Operation 8 10 faults SIMOTICS TN Series N compact 1LH8 92 Operating Instructions 06 2017 ...
Страница 112: ...Maintenance 9 2 Corrective Maintenance SIMOTICS TN Series N compact 1LH8 112 Operating Instructions 06 2017 ...
Страница 128: ...Disposal 11 4 Disposal of components SIMOTICS TN Series N compact 1LH8 128 Operating Instructions 06 2017 ...
Страница 130: ...Service and Support SIMOTICS TN Series N compact 1LH8 130 Operating Instructions 06 2017 ...
Страница 134: ...Quality documents SIMOTICS TN Series N compact 1LH8 134 Operating Instructions 06 2017 ...
Страница 139: ......