Documentation Number 4050003599 pg. 1/1
Not Recommended for New Installation
Please contact Technical Support for more information.
B&B Electronics -- September 1999
Transmit Temperature Over 4-20mA
CE
Model 405000
The Model 405000 transmitter converts a J-type thermocouple, K-type
thermocouple, or Pt 100
RTD signal into a 4-20mA analog signal. This
signal can then be transmitted without signal degradation over long
distances using ordinary and inexpensive copper-wire, eliminating the need
for expensive compensation and extension cable.
The 405000 is pre-configured to connect to a RTD Pt 100
for a
temperature range of 60 to 120F (0 to 100C) and is easily modified with a
soldering iron for a thermocouple or temperature ranges from 150 to
2190F (-100 to 1200C).
The 405000 is mounted in a NEMA 2 hood (IP-42) made of ABS plastic with a protective cover.
Features
Cold junction compensation
LED power-on indicator
Compact size
Solder pad selectable temperature range
Supply voltage polarity protection
Rugged ABS casing
Specifications
Input
J, K thermocouples, Pt 100
RTD
Output
Analog 4-20mA two-wire
Temperature Ranges
J-type thermocouple
32 to 1470F (0 to 800C)
K-type thermocouple
32 to 2190F (0 to 1200C)
RTD Pt 100
-150 to 570F (-100 to 300C)
RTD Pt 100
-60 to 660F (-50 to 350C)
RTD Pt 100
32 to 750F (0 to 400C)
RTD Pt 100
210 to 930F (100 to 500C)
Input impedance
1M
Excitation current
0.23 mA
Circuit break protect
Upscale > 30mA
Power supply
12 to 45VDC (polarity protected)
Load capability
600
max at 24V
Accuracy
J or K thermocouple
0.1% full scale
RTD Pt 100
0.1 to 0.25% full scale
Linearity
0.06% full scale
Calibration
Zero and span potentiometer adjustments
Zero drift
0.02%/C
Voltage supply effect
0.002%/V
Cold junction compensation
32 to 122F (0 to 50C)
Operating temperature
-4 to 158F (-20 to 70C)
Housing and rating
ABS plastic with protective cover, NEMA 2 (IP-42)
Dimensions
1.7 inch (43mm) diameter, 1.0 inch (26mm) high
Mounting holes
1.3 inch (33mm) to 1.9 inch (49mm)
Weight
0.8oz. (25g)
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