2100 and 2100E Liquid Level Switches
Instruction Manual
Form 5039
December 2005
2
Table 1. Specifications
Input Signal
(1)
Liquid level
Minimum Process Liquid Specific Gravity
0.5 (consult your Emerson Process
Management
t
sales office for specific gravity
below this value)
Output Signal
(1)
Type 2100 Switch:
Output equal to supply
pressure when the switch is in the normal
position (flapper against nozzle). Output reduced
to approximately atmospheric pressure,
depending upon size of the bleed orifice and
piping configuration, when the switch is activated
Type 2100E Switch:
Same as supply signal
Supply Signal
Type 2100 Switch:
J
2.1 to 4.1 bar (30 to 60
psig),
J
4.1 to 6.9 bar (60 to 100 psig), or
J
6.9
to 10.3 bar (100 to 150 psig)
Type 2100E Switch:
11 amperes, 1/4
horsepower at 125/250 volts ac; 5 amperes
resistive, 3 amperes inductive at 28 volts dc
Supply Medium (Type 2100 Switch)
Air or natural gas
(4)
Steady
-
State Air Consumption
(1,2)
(Type 2100
Switch)
Less than 0.03 normal m
3
/hr (1.0 scfh) for all
supply pressures when the liquid level is 25.4 mm
(1 inch) below the normal switch position (flapper
against nozzle) for high-level switching or
25.4 mm (1 inch) above the normal switch
position for low-level switching
Maximum Working Pressure
J
2220 WOG
(3)
except
J
350 WOG is the
maximum working pressure for sight window
construction
Operative Temperature Range
(1)
Type 2100 Switch:
−
29 to 204
_
C (
−
20 to
400
_
F)
Type 2100E Switch:
−
29 to 82
_
C (
−
20 to
180
_
F)
Displacer Diameter
102 mm (4 inches)
Process Connection Size
2220 WOG
(3)
:
J
1-inch NPT female,
J
50.8 mm (2-inch) Schedule 80 buttwelding
ends, or
J
50.8 mm (2-inch) Schedule 160
buttwelding ends
Type 2100 Switch Supply Pressure Connection
Size
1/4-inch NPT female
Type 2100E Switch Electrical Connection Size
1/2-inch NPT male
Hazardous Area Classification
The Type 2100 and 2100E switches have no
hazardous area approvals.
Approvals on the electrical switch component in
the Type 2100E, supplied by ITT NEO-DYN are
as follows:
APPROVED
EXP
−
Class I Division 1 Groups A,B,C,D
DI
−
Class II Division I Groups E,F,G
Class I Groups A,B,C,D
Class II Groups E,F, G
UL
Class I Groups A,B,C,D
Class II Groups E,F, G
ATEX EEx d IIC
Refer to figures 7, 8, 9, and 10 for specific
hazardous classification information. Contact your
Emerson Process Management sales office if
additional information is required.
Shipping Weights
2220 WOG
(3)
Construction:
17.2 kg (38 pounds)
1. These terms are defined in ISA Standard S51.1.
2. Normal m
3
/hr—normal cubic meters per hour (0
_
C and 1.01325 bar, absolute); scfh—standard cubic feet per hour (60
_
F and 14.7 psia)
3. Water, Oil, Gas maximum working pressure rating designation in psi. Corresponds
to Cold Working Pressure: the maximum pressure rating allowed under normal ambient temperature
conditions, which are usually understood to be
−
29
_
C to 38
_
C (
−
20
_
F to 100
_
F). Refer to MSS SP-25.
4. Natural gas to contain no more than 20 ppm of H
2
S.
