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 TT421
Head Mount Smart Temperature Transmitter
4 to 20 mA + HART
The Digital Temperature Transmitter TT421 is the cost
effective solution for temperature measurement and control dedicated
for head mounting.
The Smar TT421 is a powerful and extremely versatile
programmable temperature transmitter, which can be used with practically
all relevant temperature sensors as well as with load cells, resistance
position indicators, etc.
A same unit can be used for different measuring ranges
and many types of sensors reducing drastically calibration and maintenance
time.
Complete configuration is possible using PC software
interface (CONF401) or via Hand-Held (HPC301). Configured to customer specs, prior to shipping.
Some Characteristics:
Output
Signal |
Two-wire,
4-20 mA with HART superimposed digital communication protocol
Version 5.1.Output current according to NAMUR-NE43. |
Power
Supply |
12-45 Vdc |
Input |
Single unit
accepts signal from:
Thermocouples, RTD's and Differential RTD's
mV signals from radiation pyrometers, load cells, etc
Ohm signals from position indicators, etc
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Isolation |
Factory tested isolation
for 1500V |
Accuracy |
±
0.02 % basic accuracy |
Measured Types |
- Single sensor: 2, 3, or 4 wire configurations
- Dual Sensor
- Differential
- Average
- Maximum
- Minimum
|
Configuration |
Complete
configuration is possible using PC software interface or via Hand-Held |
Calibration |
With applied reference and
without reference. |
Access
Protection |
Yes, via
passwords |
Diagnostics |
Yes, via communication. |
Control
Block |
Yes, via PID
function. |
Setpoint Generator function |
Yes, ideal for batch processes. |
Alarms |
Dual, trip
levels adjustable over entire range.
High or Low action.
Acknowledge, messaging
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Linearization |
Linearization international standards
and custom calibration according to Callendar Van Dusen |
Temperature
Limits |
Ambient: -40
to 75 ºC (-40 to 167 ºF) |
Humidity Limits |
10 to 100% RH |
Mounting |
Mounts in
industry standard DIN Form B connection head. |
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