temperature measuring transducer | RT 420 WE

Product Description

Temperature measuring transducer 4-20mA, Pt100, 2-/3,- or 4 wire for head and rail case mounting Panel-mounted resistance thermometer with measuring transducer RT 420

Advantages: Low-price and robust (completely sealed - not pots, therefore vibration resistant and long time stable) Freely programmable (extreme wide measuring range of -200 to +850°C, meas. span already from > 25°C) Selectable probe connection as 2-/3- or 4-Leiter programmable High accuracy (0,1%) Large ambient temperature range (-40 to +85°C) error message in case of sensor damage or sensor short-circuit functional warranty 5 years

 

RT 420 / WE *	head transmitter, set by works
RT 420-SG/WE *	set by works and mounted in snap-on rail housing

*= Information required at your order:
1. required probe connection (2-/3- or 4-wire)
2. measuring range from/to (max. range: -200 to +850°C)

GTF 103/RT 420	Panel-mounted resistance thermometer
Pt100 cpl. with measuring transducer RT 420 - transducer and Pt100 can be taken out in form of an insert price valid for standard length 100mm and temperature range acc. to your wishes between -50 and +400°C - Special constructions upon request!
	GTF 103/RT420	RT 420-insert with Pt100-probe of a GTF 103/RT420

SPECIFICATIONS:

Measuring range:	-200 ... +850 °C, universally programmable
Zero shift:	-200 ... +825 °C
Meas. span:	25 to 1,050 K
Resolution:	14 bit
Perm. resistance of connection cable:	max. 20 Ohm/wire
Compensation of cable error:	+ 0.0 K/Ohm (at 3-wires)
Probe connection:	2-, 3- or 4-wire connection
Meas. current:	< 0.3 mA
Sensor monitoring:	Survey for sensor damage and short-circuit
Meas. cycle:	< 700 ms
Linearisation:	linear to temperature acc. to IEC/DIN/EN 60 751-2
Accuracy:	+0.25 °C resp. + 0.1 % of meas. span
Temperature influence:	< +0.01 % / 1 K
Analog output:	4 ... 20 mA, 2-wire technology
Auxiliary energy UB:	8 ... 35 V DC (max. ripple factor: 3 Vss @ 50/60 Hz)
Permissible burden RA:	RA < (UB - 8 V) / 0.023 A (RA in Ohm, UB in V)
Influence of auxiliary energy:	+ 0.01 % / V
Damping:	settable from 0 to 30 s
Output limits:	programmable, 3.5 mA, 23 mA
Signal for sensor damage:	programmable, 3,5 mA or 23 mA
Operating temperature:	-40 to +85 °C
Storage temperature:	-55 to +90°C
Relative humidity:	0 ... 98 % r.h., (non-condensing)
Electromagnetic compatiblity (EMV):	CE conformity acc. to DIN EN 61326
Housing:	housing suitable for head mounting
Dimensions:	diameter 44 mm x 19 mm
IP rating:	housing: IP 40, connection terminals: IP 10
Electric connection:	via screw-type terminals
Weight:	approx. 35 g

 

Design type...-SG (snap-on rail housing):

Dimensions:	approx. 22,5 x 78 x 105mm
Electric connection:	via screw-type terminals
Weight:	approx. 110g

 

catalogue page as .pdf:

instruction manual as .pdf: