H24 Temperature Transmitter Overview
BAPI Sensor Specifications
Rev. 10/16/12
Temperature Transmitter Description
BAPI temperature transmitters incorporate a sensor - either a 10KΩ thermistor or a platinum 100Ω or 1kΩ RTD - and
a transducer. These devices provide an accurate two-wire, 4 to 20mA output over a specified range. They are specifically designed for temperature sensing and transmission over long distances without degradation of the 4 to 20mA
signal. The thermistor transmitter also comes in a 0 to 5 VDC or 0 to 10 VDC output.
The thermistor transmitter (BA/T10K) is microprocessor based and does not allow or require field calibration. The
thermistor transmitter is first programmed for the specified range and tested using an electronic interface. After connecting a thermistor to the transducer, the output is verified at one
temperature.
Specifications
The RTD transmitters (BA/T100 & BA/T1K) are first calibrated
T10K Transmitter
with simulated RTD resistances for the specified range. Then an
Sensor: 10KΩ Thermistor
RTD is connected to the transmitter and the output is verified at
Output: 4 to 20 mA, 0 to 5 V, or 0 to 10 V
one temperature. RTD transmitters have non-interacting zero and
Supply Voltage:
span potentiometers that are field adjustable.
10 to 35 VDC (0-5 VDC or 4-20 mA Outputs)
BAPI has verified over 200 temperature ranges for the BA/T100
15 to 35 VDC (0-10 VDC Output)
and BA/T1K transmitters. If we don’t currently offer the exact
12 to 24 VAC (0-5 VDC Outputs)
range you’re looking for, call your BAPI representative to see if we
15 to 24 VAC (0-10 VDC Output)
can create a special range.
Maximum Loop Resistance:
Additionally, BAPI can provide matched RTD-based units, BA/
700Ω at 24 VDC (4 to 20 mA Output)
T100M and BA/T1KM. Matched (sensor-transmitter pair) units
Impedance: >10K ohms (Voltage Output)
utilize the tight tolerance of Class A RTDs to improve overall acCalibration Range: -40 to 85°C (-40 to 185°F)
curacy. The matched unit is tested in an environmental chamber
Accuracy: ±1.015°C (0 to 65°C)
against an NIST traceable reference thermometer. Each matched
Linearity: ±0.065°C (0 to 65°C)
pair is provided with a “Certificate of Calibration” which lists the
Temperature Resolution: Span/1024
tested and calculated offset values, and identifies the equipment,
Operating Temperature:
products and people involved in the calibration process. The
Transmitter: 0 to 70°C
overall accuracy of the matched pair now becomes a function of
Sensor:
-65 to 105°C (standard)
the transmitter linearity, RTD linearity and reference thermometer
-40 to 155°C (available)
uncertainty.
T100 and T1K Transmitters
Matched errors are ±((Span * Linearity Error) + (Reference TherSensor: 100Ω or 1000Ω Platinum RTD
mometer uncertainty)
Supply Voltage: 7 to 40 VDC
Where linearity error = Square Root((Transmitter Linearity)2 +
Output: 4 to 20 mA
(RTD Linearity)2) = Square Root((0.125%)2 + (0.2%)2) = 0.234%
Max. Loop Resistance: 850Ω at 24VDC
Examples:
Span: Min 16.6°C (30°F), Max 555°C (1000°F)
BA/T1K(-30 to 130F)
Zero: Min -100°C (-148°F), Max 482°C (900°F)
Span = 130 - (-30) = 160
Field Adjustments: (Unit is factory calibrated,
Matched error = ±((160*0.234%) + (0.05°F)= ±0.42°F
field adjustment will void calibration warranty)
BA/T1K(45 to 95F)
Zero: +/- 10% • Span: +/- 10%
Span = 95 - 45 = 50
Accuracy: ±0.065% of Span (8 & 16mA outputs)
Matched error = ±((50*0.234%) + (0.05°F)= ±0.17°F
Linearity: ±0.125% of Span
Operational Humidity:
These accuracies are for the entire range of the sensor, although
0 to 95%, non-condensing
the accuracies in the midband of the sensor will be tighter than
0 to 100%, condensing for short intervals
those near the endpoints of the specified range. Other matching
Output
Current limits:
and/or certification options may be available, please contact your
Less than 1mA and 22.35 ± 0.15 mA
BAPI representative for details.
Power Output Shift:
BAPI temperature transmitters come in a ruggedized package for
±0.009% of Span 7 to 40VDC
all non-room configurations where moisture or condensation may
Connections:
Four 22-gauge etched Teflon
be a problem. The potting material used to ruggedize the transmitleads
or
terminal
blocks
ters has high thermal conductivity to eliminate circuit overheating
Operating Temperature:
and low thermal expansion to minimize the stress on the circuit
Transmitter: -20 to 70°C
components. Due to the extremely low moisture absorption propSensor:
-65 to 105°C (standard)
erties of the potting material, a ruggedized transmitter will remain
-200 to 600°C (available)
operational even if temporarily immersed in water.
Building Automation Products, Inc. • 750 North Royal Avenue, Gays Mills, WI 54631 USA
Tel: +1-608-735-4800 • Fax: +1-608-735-4804 • Email: [email protected] • Web: www.bapihvac.com
Temp. Transmitter Output Table H25
BAPI Sensor Specifications
Rev. 10/16/12
0-100 ºF Temp. Transmitter Output Table
°F
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
°C
-17.78
-17.22
-16.67
-16.11
-15.56
-15.00
-14.44
-13.89
-13.33
-12.78
-12.22
-11.67
-11.11
-10.56
-10.00
-9.44
-8.89
-8.33
-7.78
-7.22
-6.67
-6.11
-5.56
-5.00
-4.44
-3.89
-3.33
-2.78
-2.22
-1.67
-1.11
-0.56
0.00
0.56
1.11
1.67
2.22
2.78
3.33
3.89
4.44
5.00
5.56
6.11
6.67
7.22
7.78
8.33
8.89
9.44
mA
4.000
4.160
4.320
4.480
4.640
4.800
4.960
5.120
5.280
5.440
5.600
5.760
5.920
6.080
6.240
6.400
6.560
6.720
6.880
7.040
7.200
7.360
7.520
7.680
7.840
8.000
8.160
8.320
8.480
8.640
8.800
8.960
9.120
9.280
9.440
9.600
9.760
9.920
10.080
10.240
10.400
10.560
10.720
10.880
11.040
11.200
11.360
11.520
11.680
11.840
5V
1.00
1.04
1.08
1.12
1.16
1.20
1.24
1.28
1.32
1.36
1.40
1.44
1.48
1.52
1.56
1.60
1.64
1.68
1.72
1.76
1.80
1.84
1.88
1.92
1.96
2.00
2.04
2.08
2.12
2.16
2.20
2.24
2.28
2.32
2.36
2.40
2.44
2.48
2.52
2.56
2.60
2.64
2.68
2.72
2.76
2.80
2.84
2.88
2.92
2.96
10V
2.00
2.08
2.16
2.24
2.32
2.40
2.48
2.56
2.64
2.72
2.80
2.88
2.96
3.04
3.12
3.20
3.28
3.36
3.44
3.52
3.60
3.68
3.76
3.84
3.92
4.00
4.08
4.16
4.24
4.32
4.40
4.48
4.56
4.64
4.72
4.80
4.88
4.96
5.04
5.12
5.20
5.28
5.36
5.44
5.52
5.60
5.68
5.76
5.84
5.92
°F
°C
mA
5V
10V
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
10.00
10.56
11.11
11.67
12.22
12.78
13.33
13.89
14.44
15.00
15.56
16.11
16.67
17.22
17.78
18.33
18.89
19.44
20.00
20.56
21.11
21.67
22.22
22.78
23.33
23.89
24.44
25.00
25.56
26.11
26.67
27.22
27.78
28.33
28.89
29.44
30.00
30.56
31.11
31.67
32.22
32.78
33.33
33.89
34.44
35.00
35.56
36.11
36.67
37.22
37.78
12.000
12.160
12.320
12.480
12.640
12.800
12.960
13.120
13.280
13.440
13.600
13.760
13.920
14.080
14.240
14.400
14.560
14.720
14.880
15.040
15.200
15.360
15.520
15.680
15.840
16.000
16.160
16.320
16.480
16.640
16.800
16.960
17.120
17.280
17.440
17.600
17.760
17.920
18.080
18.240
18.400
18.560
18.720
18.880
19.040
19.200
19.360
19.520
19.680
19.840
20.000
3.00
3.04
3.08
3.12
3.16
3.20
3.24
3.28
3.32
3.36
3.40
3.44
3.48
3.52
3.56
3.60
3.64
3.68
3.72
3.76
3.80
3.84
3.88
3.92
3.96
4.00
4.04
4.08
4.12
4.16
4.20
4.24
4.28
4.32
4.36
4.40
4.44
4.48
4.52
4.56
4.60
4.64
4.68
4.72
4.76
4.80
4.84
4.88
4.92
4.96
5.00
6.00
6.08
6.16
6.24
6.32
6.40
6.48
6.56
6.64
6.72
6.80
6.88
6.96
7.04
7.12
7.20
7.28
7.36
7.44
7.52
7.60
7.68
7.76
7.84
7.92
8.00
8.08
8.16
8.24
8.32
8.40
8.48
8.56
8.64
8.72
8.80
8.88
8.96
9.04
9.12
9.20
9.28
9.36
9.44
9.52
9.60
9.68
9.76
9.84
9.92
10.00
Building Automation Products, Inc. • 750 North Royal Avenue, Gays Mills, WI 54631 USA
Tel: +1-608-735-4800 • Fax: +1-608-735-4804 • Email: [email protected] • Web: www.bapihvac.com