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Information about temperature sensor installation
Minimum distance from temperature sensor cable to other installations or cable chan-
nels
at least 250 mm!
Ø 5.2 mm Pt500 sensor set (coupled sensors) with 1.5 m silicone cable
Install the temperature sensors symmetrically and handle them carefully.
One temperature sensor is installed in the volume measuring section on delivery.
Install the other sensor (with the green plastic ring) as a directly immersed sensor. Alter-
natively, depending on the national regulations, both sensors must be installed in immer-
sion pockets. The sensor installed in the volume measuring section must be installed as
close as possible (max. 12 cm) to the volume measuring section outlet instead.
For the meter outlet variant, install in the inlet and for the inlet variant in the outlet
!
The cables may neither be shortened nor extended.
Directly immersed installation
2
Unscrew the screw plug from the special ball valve.
1
Place the enclosed O-ring on the assembly pin. Only use one O-Ring.
2
When replacing sensors, replace the old O-ring with a new one.
Using the assembly pin, turn the O-Ring into the bore hole of the closing screw
3
with a rotating movement.
Place the O-ring in its final position using the other end of the assembly pin.
4
Place the temperature sensor with the plastic screw in the bore hole of the closing
5
screw and tighten it hand-tight. Do not use any tools for this!

Final tasks

Apply seals to the screw connections and both temperature sensors.
1
!
In addition, the ex-works installed temperature sensor must be sealed.
US cold meter vario 3 type 3.2.1
This chapter only describes the properties and functions of the cold meter which differ
from those of the heat meter.
Environmental conditions
Operating conditions / measurement range:
Computer unit:
Volume measuring section:
Alternative temperature ranges:
Ambient temperature:
!
The meter is also available as a combined heat cold meter with the temperature
range 2 °C...150 °C, however only as a heat meter with MID approval.
Meters for water-glycol mixtures cannot be calibrated.
12
2 °C...150 °C
2 °C...130 °C
2 °C...130 °C
2 °C...50 °C
5 °C...55 °C
3 K...85 K
3 K...85 K
3 K...110 K
3 K...30 K
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