Emerson 00809-0100-4102 Humidity Limits, Volumetric Displacement, Process Temperature Limits

Appendix A: Reference Data	Reference Manual
May 2013	00809-0100-4102, Rev AA

Process Temperature Limits

At atmospheric pressures and above.

	2051C Coplanar
Silicone Fill Sensor(1)
with Coplanar Flange	–40 to 250 °F (–40 to 121 °C)(2)
with Traditional Flange	–40 to 300 °F (–40 to 149 °C)(2)(3)
with Level Flange	–40 to 300 °F (–40 to 149 °C)(2)
with 305 Integral	–40 to 300 °F (–40 to 149 °C)(2)(3)
Manifold
Inert Fill Sensor(1)	-40 to 185 °F (–40 to 85 °C)(4)(5)
2051T In-Line (Process Fill Fluid)
Silicone Fill Sensor(1)	–40 to 250 °F (–40 to 121 °C)(2)
Inert Fill Sensor(1)	–22 to 250 °F (–30 to 121 °C)(2)
2051L Low-Side Temperature Limits
Silicone Fill Sensor(1)	–40 to 250 °F (–40 to 121 °C)(2)
Inert Fill Sensor(1)	–40 to 185 °F (–40 to 85 °C)(2)
2051L High-Side Temperature Limits
	(Process Fill Fluid)
Syltherm® XLT	–102 to 293 °F (–75 to 145 °C)
D. C.® Silicone 704(6)	32 to 401 °F (0 to 205 °C)
D. C. Silicone 200	–49 to 401 °F (–45 to 205 °C)
Inert (Halocarbon)	–49 to 320 °F (–45 to 160 °C)
Glycerin and Water	5 to 203 °F (–15 to 95 °C)
Neobee M-20®	5 to 401 °F (–15 to 205 °C)
Propylene Glycol and	5 to 203 °F (–15 to 95 °C)
Water

(1)Process temperatures above 185 °F (85 °C) require derating the ambient limits by a 1.5:1 ratio.

(2)220 °F (104 °C) limit in vacuum service; 130 °F (54 °C) for pressures below 0.5 psia.

(3)-20 °F (-29 °C) is the lower process temperature limit with option code P0.

(4)160 °F (71 °C) limit in vacuum service.

(5)Not available for 2051_CA.

(6)Upper limit of 600 °F (315 °C) is available with 1199 seal assemblies mounted away from the transmitter with the use of capillaries and up to 500 °F (260 °C) with direct mount extension.

A.3.5 Humidity Limits

0–100% relative humidity

A.3.6 Volumetric Displacement

Less than 0.005 in3 (0,08 cm3)

A.3.7 Damping

The Damping command introduces a delay in processing which increases the response time of the transmitter; smoothing variations in output readings caused by rapid input changes. In the 2051 Wireless pressure transmitter, damping only takes effect when the device is placed in high power refresh mode and during calibration. In normal power mode, the effective damping is 0. Note that when the device is in high power refresh mode, battery power will be depleted rapidly.

96 Specifications and Reference Data