10
Rosemount 65Q
September 2014
www.rosemount.com
Specifications
Material selection
Emerson provides a variety of Rosemount product with various
product options and configurations including materials of
construction that can be expected to perform well in a wide
range of applications. The Rosemount product information
presented is intended as a guide for the purchaser to make an
appropriate selection for the application. It is the purchaser’s
sole responsibility to make a careful analysis of all process
parameters (such as all chemical components, temperature,
pressure, flow rate, abrasives, contaminants, etc.), when
specifying product, materials, options and components for the
particular application. Emerson Process Management is not in a
position to evaluate or guarantee the compatibility of the
process fluid or other process parameters with the product,
options, configuration or materials of construction selected.
Nominal resistance
In accordance with DIN EN 60751, the nominal resistance is
defined as follows:
100
Ω
RTD at 0 °C
Temperature coefficient
α
= 0.00385
Ω
x °C/
Ω
), averaged
between 0 and 100 °C
Limit deviations
Tolerance Class A as standard: t = ± (0.15 + 0.002 x t);
valid for the temperature range from 0 to +350 °C
Lead wire configuration
As single element (1Pt 100) with 3 or 4 lead wires or dual
element (2Pt 100) with 3 lead wires
Response time
Less than 12 seconds to reach 63% step change in water flowing
at 0.4 m/s
Process temperature range
-50 to +450 °C
The measurement range can be limited by the gasket in the
process connection.
Ambient temperature
Housing without head-mounted transmitter
Metal housings: -40 to +130 °C
Plastic housings: -40 to +85 °C
Housing with head-mounted transmitter
-40 to +85 °C
Maximum process pressure
Lower maximum pressure can be due to the process connection
Pressure ratings at 20 °C:
Tri-Clamp: 10 bar
Weld-in Ball with PEEK-Seal: 6 bar
Weld-in Ball with SST-Seal: 40 bar
Threaded: 40 bar
Tapered Union with Coupling Nut: 10 bar
VARIVENT: 10 bar
Shock and vibration resistance
According to DIN EN 60751: 2.8 g peak / 10…500 Hz
Self heating
0.15 °K/mW when measured per method defined in DIN EN
60751
Insulation resistance
1,000 M
Ω
minimum insulation resistance when measured at
500 Vdc and at room temperature
Sheath material
321 Stainless Steel with mineral-insulated cable construction
Lead wire
PTFE insulated, silver coated copper wire
