Reference Manual
00809-0100-4690, Rev FC
June 2011
A-5
Rosemount 2088 and 2090
Storage
Rosemount 2088 –50 to 230 °F (–46 to 110 °C).
–40 to 185 °F (–40 to 85 °C) with LCD display.
(1)
Rosemount 2090P –50 to 185 °F (–45 to 85 °C).
Rosemount 2090F –22 to 185 °F (–30 to 85 °C).
(1) LCD display may not be readable and LCD updates will be slower at
temperatures below -4 °F (-20 °C).
Humidity Limits
0–100% relative humidity.
Volumetric Displacement
Less than 0.00042 cm
3
.
Failure Mode
If self-diagnostics detect a sensor or microprocessor failure, the analog
signal is 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:
PHYSICAL
SPECIFICATIONS
Electrical Connection
Rosemount 2088
1
/2–14 NPT, M20 x 1.5 or G
1
/2 female (PF
1
/2 female) conduit entry.
Rosemount 2090
1
/2–14 NPT or M20 x 1.5 conduit entry
Process Connection
Rosemount 2088
1
/2–14 NPT female, DIN 16288 G
1
/2 male, RC
1
/2 female (PT
1
/2 female),
M20 x1.5 male.
Rosemount 2090P
M44 x 1.25 male, compatible with a 1-in. PMC
®
process connection.
Rosemount 2090F
1
1
/2-inch or 2-inch Tri-Clamp Connection
Process Wetted Parts
Isolating Diaphragm
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
N with Code C2 0.78 V 3.44 V 4.0 V V 0.77 V
NAMUR-Compliant
Operation
Linear Output Fail High Fail Low
Output Code S 3.8 I 20.5 I 22.5 mA I 3.6 mA
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