WIKA operating instructions models DIH50, DIH52
25
EN
14008548.05 12/2016 EN/DE
9. Information on mounting ... / 10. Maintenance and cleaning
According to the temperature class, these field indicators may only be used in the following
ambient temperature ranges:
Application Ambient temperature range Temperature
class
Power P
i
Models DIH5x-B, DIH5x-I
Group II
-60
3)
/
-50
4)
/ -40 °C ≤ T
a
≤ +85 °C
T4
< 680 mW
-60
3)
/
-50
4)
/ -40 °C ≤ T
a
≤ +
70
°C
T5
< 680 mW
-60
3)
/
-50
4)
/ -40 °C ≤ T
a
≤ +
55
°C
T6
< 680 mW
Dust Ex
-60
3)
/
-50
4)
/ -40 °C ≤ T
a
≤ +70 °C
n.a.
< 650 mW
-60
3)
/
-50
4)
/ -40 °C ≤ T
a
≤ +40 °C
n.a.
< 680 mW
n. a. = not applicable
3) Special version on request (only available with selected approvals)
4) Special version
9.4 Specific conditions for safe use, models DIH50-F, DIH52-F
Cables, insertions and blind plugs must be suitable for the corresponding operating
temperature. You must therefore check in the application case (e.g. ambient temperature
plus 5 K) whether the components used are suitable. The instruments may not be opened
while they are under voltage.
Observe the warnings on the instruments:
“WARNING! - do not open while under voltage”
10. Maintenance and cleaning
10.1 Maintenance
The field indicators described here are maintenance-free.
The electronics are completely encapsulated and incorporate no components which could
be repaired or replaced.
Repairs must only be carried out by the manufacturer.
10.2 Cleaning
CAUTION!
■
Prior to cleaning, switch off and disconnect the instrument from the mains.
■
Clean the instrument with a moist cloth.
■
Electrical connections must not come into contact with moisture.
■
Wash or clean the dismounted instrument before returning it in order to protect
personnel and the environment from exposure to residual media.
For information on returning the instrument see chapter 12.1 “Return”.
