Table of Contents
Applications Manual
2.3 Heatronic 4000 Universal Sensor
The Universal Sensor is a 10 kΩ temperature sensor designed
to be strapped onto a pipe. It can be used with any control
sensor input, but is most commonly used to monitor supply
and return water temperatures. This product has a brass
sleeve for fast response, a wide operating range, an indent
to allow pipe strap on installation, and 1 ft. (300 mm) of
2-conductor wire.
9.5 mm (3/8")
diameter
Fig. 3
Specifi cations
Description
Literature
Packaged weight
Dimensions
Enclosure
Approvals
Operating range
Sensor
Warranty
Temperature vs. Resistance
Temperature
Resistance
°F
°C
-40°
-40°
336,479
-31°
-35°
242,681
-22°
-30°
176,974
-13°
-25°
130,421
-4°
-20°
97,081
5°
-15°
72,957
14°
-10°
55,329
23°
-5°
42,327
32°
0°
32,650
41°
5°
25,392
50°
10°
19,901
59°
15°
15,712
Bosch Thermotechnology Corp.
19 mm
(3/4")
Heatronic 4000 Engineering Submittal Sheet 7738003458
Brass sleeve, 12" (2438 mm) 20 AWG, 300V PVC insulated zipcord
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 (part# 7738003451)
Temperature
Resistance
°F
°C
68°
20°
12,493
77°
25°
10,000
86°
30°
8,057
95°
35°
6,531
104°
40°
5,326
113°
45°
4,368
122°
50°
3,602
131°
55°
2,986
140°
60°
2,488
149°
65°
2,083
158°
70°
1,752
167°
75°
1,480
Bosch Heatronic 4000 Controls | 7
Features:
10K thermistor
Very fast temperature response
Thermistor accuracy of +/-0.2°F
Corrosion resistant brass sleeve
CSA and C US Approved for use in USA and Canada
300 mm (12")
Value
0.1 lb (50 g)
3/8" OD x 3/4" (9.5 OD x 19 mm)
CSA C US
-60 to 221°F (-51 to 105°C)
Limited 3 Year
Temperature
Resistance
°F
°C
176°
80°
1,255
185°
85°
1,070
194°
90°
915
203°
95°
786
212°
100°
678
221°
105°
587
230°
110°
510
239°
115°
445
248°
120°
389
257°
125°
341
266°
130°
301
275°
135°
265
Table 4
Table 5
Temperature
Resistance
°F
°C
284°
140°
235
293°
145°
208
302°
150°
186
311°
155°
166
320°
160°
148
329°
165.°
133
338°
170°
119
347°
175°
107
356°
180°
97
365°
185°
87
374°
190°
79
383°
195°
72
Data subject to change
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