Detailed Product Description

TWO-WIRE TEMPERATURE TRANSMITTER BTT782

• Compact High Performance
• Fits Standard Small Heads
• ?0.15% Accuracy
• Any Temperature Range within Limits
• Output Linear with Temperature
• Loop-powered
• DIN Rail Mounting
• Accessories and Sensors Available

FUNCTION

The BASI temperature transmitter series BTT782 is a current loop transmitters, converts signals from various temperature sensors into standard current or voltage signal that can be

safely sent over long distances to remote indicators, data loggers, or controllers. In addition to most common thermoresistance and thermocouple sensors, BTT782 transmitters may convert linear analog input signals (current or voltage). BTT782 transmitters are based on high tech integral circuits and have fixed input range. Two-wire or three-wire output options are available. Mounting options include sensor protection head type "B", DIN-rail, watertight box with high protection class, and a case for mounting on a rail. BTT782 transmitters are exceptionally low-priced and can withstand considerable electromagnetic disturbances. They are perfect low-cost solution for general-purpose applications.

 

SPECIFICATIONS GENERAL

INPUT

Pt100, Pt50, Pt500, Pt1000 : -50 -+ 500 deg C

Cu100, Cu50 : -50 -+ 500 deg C

Thermocouple "E" : 0- +1000 deg C

Thermocouple "J" : 0- +1000 deg C

Thermocouple "K" : 0- +1300 deg C

Thermocouple "L" : 0- +800 deg C

Thermocouple "L-GOST" : 0- +800 deg C

Thermocouple "U" : 0- +600 deg C

Thermocouple "T" : 0- +400 deg C

Current : 0-20mA

Min Range : RTD 50, TC 250 degC

Zero adjustment : +/- 10%

Range adjustment : +/-10%

OUTPUT

Signal type two-wire : 4 to 20 mA

Signal type three-wire : 0-5, 0-20, 4-20 mA, 0-1, 0-2,5, 0-10, 1-5, 2-10VDC

RTD output proportional to :Temperature

TC output proportional to : Input voltage

Current limit : Low=3mA, High=28mA

Current limit selection : Jumpers

Sensor break RTD : Low or High

Sensor break TC : High=28mA

Weight : 30g (B), 90g (C), 180g (D

ACCURACY

Measurement error : ?0.15% % from span

None linearity : ?0.1% from span

Temperature drift : 0.02 % from span for 1 ?C

Cold junction compensation: Automatic hardware ? 1 ?

POWER SUPPLY

For standard type : 8 to 36VDC (TC 12-36VDC)

Admissible variations : 4 Vp-p@24V/20mA

Max. line load : Max. 825 ohm(TC620 ohm)@ 24V/20mA

OPERATING CONDITIONS

Operating temperature : -20 to 75 ?C

Operating humidity : 0 to 95%RH, non-condensing

EMC : EN50081-1, EN50082-2, 89/336/EEC

UL : E252086

DESIGN AND MATERIALS

Case material : Plastic

Wiring : Screw terminals

Central opening(in-head) : Diam 5mm

Mounting in head : Diam.43 x30mm IP56,

Weight : 30g

Mounting on rail : 75 x17x60mm IP20, weight 90g