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Rosemount 2088 - Overpressure Limits; Burst Pressure Limits; Failure Mode Alarm; Temperature Limits

Rosemount 2088
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Specifications and Reference Data
March 2017
Reference Manual
00809-0100-4108, Rev CA
Specifications and Reference Data
76
A.3.4 Overpressure limits
A.3.5 Burst pressure limits
A.3.6 Failure mode alarm
If self-diagnostics detect a sensor or microprocessor failure,
the analog signal will be driven either high or low to alert
the user. High or low failure mode is user-selectable with a
jumper on the transmitter. The values to which the
transmitter drives its output in failure mode depend on
whether it is factory-configured to standard or
NAMUR-compliant operation. The values for each are as
follows:
A.3.7 Temperature limits
Ambient
Process
Process temperatures above 185 °F (85 °C) require lowering
the ambient limits by a 1.5:1 ratio:
Max. Ambient temperature in
°F = 185 –
Max. Ambient temperature in
°F = 185 –
Range 2088 2090F
(1)
1. Overpressure limit of 2090F is dependent on the
clamp/pressure adapter or sensor rating (whichever is
lower)
2090P
1 120 psi
(8,3 bar)
120 psi
(8,3 bar)
120 psi
(8,3 bar)
2 300 psi
(20,7 bar)
300 psi
(20,7 bar)
300 psi
(20,7 bar)
3 1,600 psi
(110,3 bar)
600 psi
(41,4 bar)
600 psi
(41,4 bar)
4 8,000 psi
(551,6 bar)
N/A N/A
Range 2088
1–4 11,000 psi (758.42 bar)
Standard operation
Output code
Linear
output
Fail high Fail low
S 3.9 I 20.8 I 21.75 mA I 3.75 mA
N 0.97 V 5.2 V 5.4 V V 0.95 V
NAMUR-Compliant Operation
Output
Code
Linear
output
Fail high Fail low
S3.8 I 20.5 I 22.5 mA I 3.6 mA
Sensor fill 2088 2090F 2090P
Silicone -40 to 185 °F
(-40 to 85 °C)
N/A -4 to 185 °F
(-20 to 85 °C)
Inert -22 to 185 °F
(-30 to 85 °C)
N/A N/A
Neobee
®
N/A -4 to 185 °F
(-20 to 85 °C)
N/A
With LCD
display
-40 to 175 °F
(-40 to 80 °C)
(1)
1. For the output code N, LCD display may not be readable and LCD display
updates will be slower at temperatures below -22 °F (-30 °C).
-4 to 175°F
(-20 to 80 °C)
-4 to 175°F
(-20 to 80 °C)
Sensor fill 2088
(1)(2)
1. 220 °F (104 °C) limit in vacuum service; 130 °F (54 °C) for pressures below 0.5
psia.
2. Process temperatures above 185 °F (85 °C) require derating the ambient
limits by a 1.5:1 ratio. For example, for process temperature of 195 °F (91 °C),
new ambient temperature limit is equal to 170 °F (77 °C). This can be
determined as follows: (195–185 °F) 1.5 = 15 °F, 185–15 °F = 170 °F
2090F(2) 2090P(2)
Silicone –40 to 185 °F
(–40 to 121 °C)
N/A Process
connection
codes A & C:
–40 to 250 °F
(–40 to 121 °C
Process
connection
codes D & G:
–4 to 250 °F
(–20 to 121 °C).
Inert –22 to 250 °F
(–30 to 121 °C
N/A N/A
Neobee N/A –4 to 284 °F
(–20 to 140 °C)
N/A
ProcessTemp 185()
1.5
-------------------------------------------------------------
ProcessTemp 185()
1.5
-------------------------------------------------------------

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