Teqwave H
Technical data
Hauser
85
Response time
Influence of medium temperature
The response time of the temperature measurement depends on the transfer of heat
from the liquid to the steel. Activation of the Kalman filter accelerates the response
time. An erratic change in the temperature generates a temporary error message. A
threshold for displaying the error can be set.
Influence of variations in
the medium temperature
If the medium temperature changes quickly (>1.5 °C/min (34.7 °F/min)), the measured
error can be greater than specified in the "Maximum measured error" section.
Influence of vibrations
The measured error can be greater than specified in the "Maximum measured error" section
as a result of mechanical, acoustic or electrical vibrations in the 0.8 to 2.0 MHz range. We
recommend using a dedicated power unit and not the mains power supply.
Influence of ambient
temperature
Current/voltage output
Temperature coefficient
100 µV/°C (µV/°F) or ±1 µA/°C (µA/°F)
Influence of air bubbles
Air bubbles and particles are disturbance factors when measuring with ultrasonic waves.
The recommended installation positions and the "Dispersion" diagnostic information
largely prevent incorrect measurement results caused by air bubbles or particles.
16.7 Installation
Installation conditions
16.8 Environment
Ambient temperature
range
Storage temperature
0 to +60 °C (+32 to +140 °F)
Degree of protection
Sensor
Standard: IP 67
With the order code for "Sensor options", option
CM
: additionally IP 69
Transmitter
With the order code for "Transmitter housing", option
A
, "Brushed aluminum": IP 40
With the order code for "Transmitter housing", option
B
, "Stainless": IP 67
Interior cleaning
Cleaning in place (CIP)
Electromagnetic
compatibility (EMC)
• As per IEC/EN 61326-1
• Complies with emission limit for industry as per EN 55011 (Class A)
For details, refer to the Declaration of Conformity.