Digital Indicators

We are offering Digital Indicators...

Item Code: Local-Winding-Temperature-Indicator

The Temperature time constant of heater assembly is almost same as that of transformer winding and hence response to the change of transformer winding temperature by heater and in turn instrument is fast.

Specifications
Actual temperature display ch 1 WTI)	3 digit, 0.5 inch high, 7 segment red LED
Temperature range	0 - 150 deg. C
Resolution	1.0 deg. C
Actual temperature display ch 2 WTI)	3 digit, 0.5 inch high, 7 segment red LED
Temperature range	0 - 150 deg. C
Resolution	1.0 deg. C
Output
4 - 20 mA analogue output 1	4 - 20 ma analogue output 1 corrosponds to to - 0-150 deg. C
4 - 20 mA analogue output 2	4 - 20 ma analogue output 1 corrosponds to to - 0-150 deg. C
Relay Settings :
Set 1 to Set 10 Temp. Display	Pair of 3 digit, 0.5 inch high, 7 segment red LED for High and Low Setting
Temperature setting range	1- 150 deg. C
Operating ambient temperature	0- 150 deg. C
Power Supply	90 V to 260 V ac / dc

Our Digital Tap Position Indicator  are as per following specification:

Annex. A : Application,Specifications and Features of Various Models of Tap Postion Indicator

Sl.	Feature	TDC 2001	TPC 2001	REP 2002	PX 2000	PX 2001	PX 2002
1.	Application	Indication of operating tap No.	Indication of operating tap No.	Repeat Indication of operating tap No.	Indication of operating tap No., Voltage and count of tap change operations	Indication of operating tap No., Voltage and count of tap change operations	Indication of operating tap No., Voltage
2.	Mounting	Flush Mounting	Flush Mounting	Flush Mounting	Flush Mounting	Flush Mounting	Flush Mounting
3.	Optional Instruments	-	Repeater Model REP 2002	Repeater Model REP 2002	Repeater Model REP 2002	Repeater Model REP 2002	Repeater Model REP 2002
4.	Tap Range	1 -70 positions	1 -70 positions	1 -70 positions	1 -70 positions	1 -70 positions	1 -70 positions
5.	Auxiliary Supply	110-230V AC or 90-270V AC/DC	90-270V AC/DC	90-270V AC/DC	90-270V AC/DC	90-270V AC/DC	90-270V AC/DC
6.	Output	-	One Output 4 -20 mA	Optional	One Output 4 -20 mA	One Output 4 -20 mA	One Output 4 -20 mA

Digital Temperature Scanner are as per following specification :

Temperature Sensor	RTD (Pt 100 DIN 43760)
Number of Sensor Inputs	6 Nos. or 8 Nos. Max
No. of Set Points	2 Nos. + 2 Nos. optional
Resolution	1oC or 1oC Opt.
Accuracy	+- 0.5% of F.S.
Dead Band (Hystersis)	User Settable (0 to 9 oC
Display Scan Time	Seven segment,12.5 mm RED LED 1 digit display for channel no 4 digit display for temperature
Error Setting	+-10oC
Indications (additional)	a) RED LED to indicate Power Onb) Yellow LED Auto Manual c) Green LED Alarm (relay) d) Green LED for very high (Relay)f)Green LED for Fan (Relay) g) Blue LED for sensor Fault
Overall Size	96 X 96 X 150
Cutout Size	92 X 92 X 150

Electrical

Supply Voltage	90 V to 260 V AC/DC Voltage
Output	Two N/O Contacts (5A at 240V AC or 10A at 110V AC
Analog Output	One analog o/p 4-20mA, 1k burden one analog o/p 4-20mA, (Optional)
Terminals	Screw Caged suitable for 0.2 - 4 sq.mm. solid conductors
Insulation	Insulation resistance > 100 M at 500 V DCbetween each Terminal proof between all mains supply terminals shorted together & earth - no break down for one minute. - Factory tested at 1.5 kV rms, 50 Hz. - Susequent field test at 0.5 rms, 50 Hz

Salient Features :

The microprocessor based, model - WTC 2002 / OTC 2003 is distinguished for its features, construction, operation and cost effectiveness. The Versatility of this model is a result of careful consideration and understanding of the wide spectrum of the user needs and convenience, whether during testing or online operation. This instrument is designed using state of the art integrated circuits (IC), and glass epoxy Circuit Boards (PCB). Remote Winding Temperature is easy to configure this instrument as the same is very user friendly. The instrument incorporates a stabilized power supply and filter circuit for absorbing power supply transients, thus ensuring accurate control / and a stable disply. The out put is displayed and has a viewing distance of more than 4 meter.

BURN - IN :
 
Each instrument is tested and aged at ambient conditions for 48 hours in electrically energized condition prior to delivery as per Pradeep's norms for verification of design reliability. This practice ensures the unit's continued performance to specifications and to customers satisfaction.

Type Tests :

Repeated series models are type tested at ERTL (West), STQC, Govt of India for following :

EMC Test : As per IEC - 61000 - 4 - 2 : 1995 for ESD and for HED.

Impact Shock Test as per IS 9000 ( Pt.VII) : 1997.

Cold and Dry Heat Test as per IS 9000 (Pt.II) : 1997.

Additional important Features :

a. Range can be set lower side and higher side.
b. Having the facility of Error Setting to compensate the line drop or hold. c. Having the facility of 4-20 mA output optional on demand.
d. Having the facility to check all the segments by pressing "SET" Key.

We are offering RTD System as per client specification. Following are given some features :

Annex. B : Features of various Models of RWTI Series RTD-100/W

Sl.	Feature	RTD 2000	RTD 2000 A	RTD 2000 B	RTD 2000 C	RTD 2000 D
1.	System Content	Pt.100 sensor, Shunt resistor box & indicator with inbuilt CCU	Pt 100 sensor, shunt resistor box & indicator with inbuilt CCU	Pt.100 sensor, Shunt resistor box & indicator with inbuilt CCU	Pt.100 sensor, Shunt resistor box & indicator with inbuilt CCU	Pt.100 sensor, Shunt resistor box & indicator with inbuilt CCU
2.	Overall Dim.	96 X 96 X 150mm	96 X 96 X 150mm	96 X 96 X 150mm	96 X 96 X 150mm	96 X 96 X 150mm
3.	Panel Cutout	92 X 92mm	P92 X 92mm	92 X 92mm	92 X 92mm	92 X 92mm
4.	Mounting	Flush Mounting	Flush Mounting	Flush Mounting	Flush Mounting	Flush Mounting
5.	Display	3 digits,7 segment LED 12.7 mm ht.	3 digits,7 segment LED 12.7 mm ht.	3 digits,7 segment LED 12.7 mm ht.	3 digits,7 segment LED 12.7 mm ht.	3 digits,7 segment LED 12.7 mm ht.
6.	Temperature Range	0-150o C (STD)temp.can be set - 50 500oC	0-150o C (STD)temp.can be set - 50 500oC	0-150o C (STD)temp.can be set - 50 500oC	0-150o C (STD)temp.can be set - 50 500oC	0-150o C (STD)temp.can be set - 50 500oC