Dresser Model 10C25 Series K Installation, Operation, and Maintenance Manual
© 2018 Natural Gas Solutions North America, LLC
Page 39 of 74
12.5
Temperature Probe Insertion or Replacement
Temperature probes are used on temperature compensated digital indexes. The digital index has two
connectors: one for the top inlet and one for the side inlet. The temperature probe is plugged into the
connector on the back of the digital index that corresponds to the meter inlet that is being used
.
When a
temperature probe is installed, the unused connector should be covered to protect it from dirt and
damage.
Perform the following steps to install or replace a temperature probe:
1.
Remove the digital index as described in Section 12.4.2.
2.
Remove the cover over the connector, and plug
the temperature probe into the connector on
the digital index that corresponds to the meter
inlet that is being used.
3.
Insert the temperature probe into the
appropriate meter inlet.
4.
Install the protective cover over the unused
temperature probe connector.
Figure 42: Temperature probe installation on
digital index
5.
Replace the digital index as described in Section 12.4.3.
6.
Clear the temperature fault (T FLT) by using the LCD screen or the Dresser MeterWare software
(refer to Section 11.5).
7.
If needed, perform the single point calibration process for the temperature probe with the
MeterWare software (refer to the
Dresser MeterWare Software Manual
).
This procedure requires a stable and accurate temperature reference device for comparison. Allow
enough time for the temperature to stabilize between the new temperature probe and the
reference temperature device.
For the best results, submerge the new temperature probe and the reference temperature device in
a temperature-controlled liquid bath.
12.6
Battery Maintenance
The digital index is powered by a sealed battery pack with two (2) Lithium Thionyl Chloride batteries with
an average life span of twenty (20) years.
The actual battery life depends on the conditions under which it is used. It is calculated by assuming
continuous flow at 50% of the meter’s maximum capacity
.
Battery life expectancy is 20+ years in cooler climates and 15+ years in warmer climates.