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2-Wire Economy Hockey Puck
Temperature Transmitter
This "Hockey
Puck" style Temperature Transmitter fits directly in the head of an RTD
or thermocouple temperature sensor offering several advantages over a plain
sensor. Wiring is simplified since the lead resistance of the wires connecting
the sensor to the control system can normally be ignored. Installation and start-up
is simple and the signal can travel over long transmission lines without interference.
The ambient temperature specifications of this transmitter are among the industry's best. This is an advantage at high temperatures since heat travelling up the sheath to the head can cause the operating temperature of some transmitters to be exceeded.
The sensor current output is linear with temperature for RTD models and linear with thermocouple emf for thermocouple versions.
We can offer prompt deliveries of custom or standard ranges by maintaining a stock of semi-finished goods and finishing assembly to order.
2-Wire Economy Hockey Puck Temperature Transmitter - Technical Data
| Output: | 4-20 mA |
| Power Supply: | 10-30 VDC, Polarity protected |
| Temperature drift: | +0.01 %/ deg C |
| Supply voltage effect: | +0.01% of full scale / Volt |
| Open circuit detection: | >22mA...<30mA typical 27mA |
| Short circuit detection: | >2mA...<3mA typical 2.2mA |
| Load capability: | (Vbat-12V) / 20 mA |
| Ambient temperature: | -25 + 85 C |
| Storage temperature: | -40 +100 C |
| Case: | cat polycarbonate for fitting into terminal head Form B to DIN 43 729. |
| Size: | 44mm dia x 21mm |
| Weight: | 50 gm approx |
| Input: | Models for Pt100 RTD's, type J and type K thermocouples |
| Adjustment accuracy: | 0.2 % of full scale |
| Measuring range: | Factory setting can be changed with 2 solder links and two potentiometers |
| Calibration
These transmitters have clearly marked zero and span pots. To calibrate connect a precision decade box to the RTD terminals. Since 1 degree Fahrenheit change is equal to a 0.2 ohm change you need a very accurate decade box to calibrate accurately. Insert a DVM set to mA in the 2-wire loop and apply power. With the decade box set to the scale beginning resistance from the table adjust the zero pot to obtain 4 mA. Change the resistance in the decade box to the scale end and adjust the span pot as necessary to obtain 20 mA. Go back and forth until the readings are stable. |
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2-Wire Economy Hockey Puck Temperature Transmitter - Ordering Data
| Model | Input |
| TT-HP-R-100-L | Pt100 (RTD) up to 150°C |
| TT-HP-R-100-H | Pt100 (RTD) up to 600°C |
| TT-HP-J | J T/Cup to 600°C |
| TT-HP-K-L | K T/Cup to 600°C |
| TT-HP-R-100-L | K T/C up to 1200°C |
Please also specify measuring range desired.
2-Wire Economy Hockey Puck Temperature Transmitter - Downloads
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