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Temperature Probes:
NTC
The control is shipped with an NTC (Negative Temperature
Coefficient) sensor, with a cable length of 7½ feet. Cable
length can be extended up to 400 feet by appropriately splic-
ing and adding additional cable (22 AWG or larger diameter)
PTC
The control may be connected to an existing PTC (Positive
Temperature Coefficient) sensor. Make sure the PTC sensor
meets the specifications tables below. Failure to do so will
result in temperature inaccuracies. The PTC input may not be
NTC TEMPERATURE VERSUS RESISTANCE TABLES
PTC TEMPERATURE VERSUS RESISTANCE TABLES
as needed – polarity is not important. When extending cable
length, verify temperature accuracy and use the menu Ambi-
ent Temperature Offset (OFS) settings to compensate accord-
ingly if required.
extended more than 50 feet, and the wire gauge should be
18 AWG wire or larger diameter. Be sure the probe attached
matches the resistance vs. temperature tables or temperature
inaccuracies may occur.
SPECIFICATIONS
Temperature
(°F) (°C)
Resistance
(KΩ)
-40 -40 328.29
-31 -35 236.83
-22 -30 172.90
-13 -25 127.65
-4 -20 95.23
5 -15 71.74
14 -10 54.56
23 -5 41.85
32 0 32.37
41 5 25.23
Temperature
(°F) (°C)
Resistance
(KΩ)
50 10 19.82
59 15 15.67
68 20 12.48
77 25 10.00
86 30 8.07
95 35 6.55
104 40 5.34
113 45 4.38
122 50 3.61
131 55 2.99
Temperature
(°F) (°C)
Resistance
(KΩ)
140 60 2.49
149 65 2.09
158 70 1.76
167 75 1.48
176 80 1.26
185 85 1.07
194 90 0.92
203 95 0.79
212 100 0.68
221 105 0.59
Temperature
(°F) (°C)
Resistance
(KΩ)
-40 -40 613
-31 -35 640
-22 -30 668
-13 -25 697
-4 -20 727
5 -15 758
14 -10 789
23 -5 822
32 0 855
41 5 889
Temperature
(°F) (°C)
Resistance
(KΩ)
50 10 924
59 15 960
68 20 997
77 25 1035
86 30 1074
95 35 1113
104 40 1153
113 45 1194
122 50 1236
131 55 1279
Temperature
(°F) (°C)
Resistance
(KΩ)
140 60 1323
149 65 1368
158 70 1413
167 75 1459
176 80 1506
185 85 1554
194 90 1602
203 95 1652
212 100 1702
221 105 1753
Load Output Relay: Ratings (Maximum):
120VAC 208VAC 240VAC
Full Load Amps NC & Load 16 A 9.2 A 8 A
Locked Rotor Amps NC & Load 96 A 55.2 A 48 A
Non-Inductive Amps NC & Load 16 A 16 A 16 A
Horsepower NC & Load 1 hp 1 hp 1 hp
24 VAC NC & Load 100 VA, 30 VAC Max (Class 2)
Pilot Duty NC & Load 125 VA, 24 to 240 VAC
• Minimum Load Rating: 1 Amp @ 24 VAC
• Note: the above minimum current/voltage is specied
to assure proper operation.
NOTE: For use on single phase circuits only.
Alarm Relay Ratings (Maximum):
N.O. contact: 1 Amp, 5 to 24 V, AC or DC
Operating Ambient Ratings (Control Enclosure):
Operating Temperature: -29°F to 140°F (-34° to 60°C)
Storage Shipping Ambient Ratings:
Storage Temperature: -40°F to 185°F (-40° to 85°C)
Operating Humidity: 0 to 95% Relative Humidity,
Non-Condensing
Maximum Dew Point: 85°F (29°C)
Temperature Set-Point Range:
Set-Point Range: -40° to 220°F (-40° to 104°C)
Differential Range: 1 to 30 (Degrees F or Degrees C)
Case:
NEMA 1 Enclosure, Flammability Rating: UL94VO