Behavior Of The Temperature Sensor - Icon Process Controls truflo UltraFlo 2000 Series Operating Manual

UltraFlo ® 2000 SERIES
Ultrasonic Flow Meter
Repair, Hazardous Substances
Before sending the flowmeter Flowmeter for repair, the following precautions must be taken:
Clean all process chemicals from the device. Fully rinse the flow path. Please pay close attention to the process fittings.
All media must be removed before returning. This is particularly important, if the medium to be measured is health
hazardous.
Devices judged to be insufficiently cleaned will be returned to sender. No inspection of device will be done until proper cleaning is
completed by user.
Costs due to inadequate cleaning of the instrument for possible disposal or injury (burns, etc.) will be charged to the sender of the meter
into account.
With the flowmeter send a detailed report describing the failure, the application and the physical-chemical properties of
the medium parameters. (e.g. a decontamination declaration).
In order to be able to process your repair order quickly and smoothly it is important that you provide a technical contact person including
phone and fax number as well as e-mail address.

Behavior of the Temperature Sensor

The integrated temperature sensor has no direct contact to the liquid and is used to calculate the expansion of the housing. The
environment temperature greatly influences the actual temperature of the temperature sensor. The response time of temperature
changes relates to the mounting position of the temperature sensor inside the housing.
Step-Response Time
Step-response time after a significant temperature change. (Filter "Off")
Filter Configurations for Temperature Sensor
Filter
Off
Soft
Medium
Strong
100
80
60
40
20
0
0 5 10
100%
1s
16s
1min
4min
Step-response time
15 20 25 30 35
Step-Response with Filter
100
80
60
40
20
0
0 1
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40 45
Time [min]
Time [s]
2 3
Time [min]
Off
Soft
Medium
Strong
4
24