SPECIFICATIONS
GENERAL
Storage Temperature: -65° to 160°F (-54 to 71°C)
Ambient Temperature: -58° to 160°F (-50 to 71°C);
ranges 36-39, 520-525, 540-548, 701-705: 0 to
160°F (-17 to 71°C); Models 820E, 822E:-40° to
160°F (-40 to 71°C) set point typically shifts less
than 1% of range for a 50°F (28°C) ambient
temperature change; less than 2% for types
E121 & E122
Set Point Repeatability: Temperature models: ±1% of
adjustable range. Pressure model ranges 126-164,
S126B-S164B, 171-174, 270-274, 358-376, 520-535,
540-543, 560-564, 701-705: ±1% of adjustable
range; ranges 450-559: ±1/2% of adjustable range;
ranges 36-39,183-194, 483-494, 544-548, 565-567,
612-680: ±1-1/2% of adjustable range
Shock: Set point repeats after 15 G, 10 millisecond
duration
Vibration: Set point repeats after 2.5 G, 5-500 Hz
Enclosure: Die cast aluminum (max. 0.4% copper), epoxy
powder coated; gasketed; coverlock; internal set
point lock standard on types J, C, F; gasketed
aluminum tamper-resistant dial cover on types B, H,
E; aluminum name plate
Enclosure Class: Certified to enclosure type 4X. Types
820E, 822E; designed to meet NEMA 4 requirements
with option M300; Class I, Division 1 product meet
enclosure type 7; Class II, Division 1 products meet
enclosure type 9. Certified to IP66 requirements
Switch Output: One, two or three SPDT; switches may be
separated up to 100% of range; except ranges 521-
524, 531-534 (50%); ranges 520, 525, 530, 535, 570
-572 (30%); Two SPDT hermetic sealed switches
available on H122P models
Electrical Rating: 15 A 125/250/480 VAC resistive except
Pressure model H122P; 11A 125/250 VAC resistive;
Temperature range codeHTFP: 22A 480VAC resistive
Weight: 3-7.5 lbs; Varies with model
Reference Scales: Types B, E & H: external dial. Scale
divisions vary with range.
Electrical Connection: Type H, B, E: one 3/4" NPT; Type J,
C, F, 820E, 822E: two 3/4" NPT; terminal block
standard
Pressure Connection: Ranges S126B-S164B, 171-194,
483-494, 520-535: 1/2" NPT (female); ranges 560-
564: 2" sanitary connection; ranges 565-567: 1 1/2"
sanitary connection; ranges 540-548: 1/8" NPT
(female); all others: 1/4" NPT (female)
Temperature Assembly: Bulb and capillary: 6 feet
304 stainless steel (standard) except for E121-
13273 and E122-13321: 10 feet; Immersion
stem: nickel-plated brass (standard) except for
B121-13272 and B122-13322: stainless steel.
Fill: Range 1BS: solvent filled; ranges 2BS-8BS:
non-toxic oil filled
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Temperature Deadband: Models F120, 820E, 822E:
typically 1%; B-, C-, and E- 121 and 122: typically
2% of range under laboratory conditions (70°F
[21°C] ambient circulating bath at rate of 1/2°F
per minute change)
Pressure Deadband: See model charts
Differential Pressure Indication: Differential pressure
indication available models H121K and H122K
with option M210; accuracy approximately ±1%
mid 50% of range, ±3% at ends; window is
plexiglass and gasketed; indicator may be field
adjusted for approximately ±1% accuracy at any
set point within range
Temperature Indication: Temperature indication
available models 820E and 822E. Indication
accuracy is +1% of adjustable range
Approvals:
Class I, Division 1 & 2, Groups B, C & D
Class II, Division 1 & 2, Groups E, F & G
Class III
Class I, Zone 1, Group IIB + H2 T6
UL Listed, cUL Certified
Pressure: UL 50, 698; CSA C22.2 No. 25-1966,
30-M1986, CEC Part 1 – File #E40857
Temperature: UL 50, 698; CSA C22.2 No. 25-
1966, 30-M1986, CEC Part 1 – File #E43374
CENELEC/DEMKO A/S (N.B. #0539)
Demko A/S certified to ATEX Directive (94/9/EC)
II 2 G EEx d IIC T6, Tamb.= -40°C to +71°C
(-40°F to +160°F), IP 66
II 2 D T+85°C, Tamb.= -40°C to +71 °C (-40°F
to +160°F), IP 66
EN 50 014, EN 50 018, EN 50 281, EN 60529
Certificate #DEMKO 03 ATEX 0305048
CENELEC/TÜV Süddeutschland Bau und Betrieb
GmbH (N.B. #0036)
TÜV certified to PED (97/23/EC)
Category IV, Module H1 (must select option
M407)
Certificate #USA 02/04/38/001 thru USA
02/07/38/033
UEC Compliant to LVD (73/23/EC & 93/68/EEC)
Products rated lower than 50 VAC and 75 VDC
are outside of the scope of the LVD The Low
Voltage Directive does not apply to products
for use in hazardous locations
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