Precision Measuring Instruments

Offers Potentiometric Strip Chart Recorders for various Processes Industries with High Accuracy and fast response to the change in parameters having rugged assembly for any Environmental conditions. We use sealed potentiometer or conductive plastic potentiometer (Japan) suitable for environmental conditions. Power supply 240vac / 110 vac & for mA or mV dc signals. 24vdc / 12vdc power supply can be incorporated.

Different models in Single Pen, Two Pens and Multi Point (Six Point)

Recorder are manufactured in 100 mm, 120 mm, 180 mm and 250 mm Chart Width having fix Speed of 20 mm, 60 mm and 120 mm or adjustable chart speeds by selector switch upto 960 mm/hr by stepper motor. Inputs of Temperature, RTD, and Thermocouple. Linear Input like 4 - 20 m Amp, 0 - 10 V Dc or as specified are manufactured Taylor made. Useful for Parameters like, Temperature, Humidity, Flow, Current, Voltage, pH, Conductivity, Wind Flow, Wind Direction, Radiation etc.

The M-Series transmitter feature the proven housing with base plate and cover.


Advantage :

• Separation of base plate with wiring from electronics
• Installation of base plate during any phase of construction. The electronics in after completion of construction works
• Electronics module may be removed without midifications of wiring
• Existing base plates of FT/FH series are compatible

Specifications :

Sensing	Solid state capacity type sensor.
Resolution	0.1 %.
Range	0 to 100 % operating at -40 C to +50 C
Accuracy	± 3% of full scale reading.
Operating Temperature	-40 o C to +50 o C.
Power requirement	+ 5 volts DC.
Power consumption	~ 4 mA.
Output	0- 1V for 0 to 100% humidity
Weather Shield	Weather shield with weather proof reflective white paint coating.
Size of body	250 (H) x 90 mm diameter. (with weather shield)

Principle Of Operation:

Humidity sensor features an improved design to provide highly accurate and rapid measurements. The humidity sensor is a thin film capacitor element. A dielectric polymer absorbs water molecules from the air through a thin metal electrode and this causes a capacitance change proportional to humidity. The response is essentially linear. A sintered filter is provided to protect the sensor element from dirt, atmospheric pollutant and water condensation.

A solid state electronic circuit is built in each probe to produce 0 to 1000 M. Volts output signal corresponding to relative humidity value 0 to 100%. The output is single ended.

Offers the capacitive type Humidity Sensors / Transducers with Temperature Sensors along with Digital L.E.D / L.C.D Display Indicators and Controllers required for Process Industries like Pharmaceuticals, food, Textiles, Air Conditioning Plants and Green House in Particularly to measure direct Relative Humidity and controlling the same.

Transducers Out Put in Linear like 0 to 1 V Dc, 0 - 10 V Dc, 4 to 20 m Amp with full range of Humidity i.e. 0 to 100% RH with accuracy less than +/-2% RH. Wall mounting and Duct mounting probes are available. New models for precise process requirements suitable for operating temperature from –40 to 180°C  0–100% RH. now available. Direct %RH output in mA or digital output/RS 232 for p.c. connectivity available. Models for Dew point Temp./ frost point Temp./wet Bulb Temp./ water vapour pressure/mixing ratio/absolute humidity can be arranged within short time.

We also offer Humidifiers & Dehumidifiers & controlling system with Recorders also.

We undertake calibration of Humidity / Pressure / Temp. /Airvelocity traceable to NPL std.

EE65 air velocity transmitters are ideal for accurate ventilation control applications. They are operating on an innovative hot film anemometer principle. The E+E thin film sensor guarantees very good accuracy at low air velocity, which is not possible for conventional anemometers with commercial temperature sensors or NTC bead thermistors. Moreover, the Ei-E sensor is much more insensitive to dust and dirt than all other anemometer principles. This means high reliability and low maintenance costs.

EE65 series are available with current or voltage output, the measuring range and the response time can be selected with jumpers by the user.

Low angular dependence enables easy. cost-effective installation.

An integrated LC display and a version with remote sensing probe are available.

High Accuracy Air Velocity and Temperature Transmitter
EE70 air velocity and temperature transmitters ore the ideal solution for high-encl applications in the field of HVAC, clean rooms, ventilation, filter control and chemical hoods.

The calculation of the air velocity. linearisation and full temperature compensation are carried out by a high performance micro-controller.

EE70 transmitters are using ESE thin film sensors operating on an innovative hot film anemometer principle. This guarantees excellent accuracy in the low range, even below 0.5 m/s. which is not possible for conventional anemometers with commercial temperature sensors or NTC bead thermistors. Furthermore. the E+E sensor is much more insensitive to dust and dirt than all other anemometer principles. which increases reliability and reduces maintenance cost . EE70 Series are available with current or voltage output and also as a version with remote sensing probe. Very low angular dependence enables easy. cost-effective installation.


Typical Applications:

• Medical Room
• Filter Control

Features:

• High Accuracy
• Two measured variables in one instrument
• Temperature compensated
• Low sensitivity to shocks
• Good resistance to pollutants
• Almost non-directional
• Easy mounting

Pune is well known for “SUNSUI” brand process control instruments especially Chart Recorders and Data Loggers. Now coming up with new and innovative series of Hybrid Chart Recorders. Which has inbuilt microprocessor technology & potentiometric feedback element for accepting most commonly used input signals with scaleable range for each kind of input parameter. Experienced in tremendous market installations spread in various field of applications. This product is specially designed as per the Customer’s / Field requirement for monitoring and improving process quality.


This New Chart Recorder comes with seven-segment LED display with floating resolution and high accuracy. With added feature of two set point control relay for Hi and Low alarm while monitoring & recording the process parameter, which avoid additional controllers. For cooling appliances with compressor Specially designed model of circular chart recorder comes with the delayed relay controller.


Key Features of Universal Input Recorder

• Microprocessor based highly precise design in combination potentiometric feedback for better accuracy.
• Field Configurable input signal with the help of splash proof membrane keypad.
• Input: Universal 3 wire PT 100 / (J, K) Thermocouple / 4 to 20 mADC / 0 to 5 VDC
• Range and decimal point Scaleable as per the requirement.
• Indication: 4 Digit, 0.5” 7 Segment, red LED display with separate indication for alarm set points.
• Optional one control set point for heater /compressor with max 180 sec delay.
• Alarm: Two alarms each having relay with NO and NC potential free relay contacts with rating of 230 V A C, 6 A resistive load.
• Response time less than 1 sec.
• Calibration through splash proof membrane keypad.
• Transmitter supply 24 VDC for powering the transducer (OPTIONAL)
• Supply 230 VAC / 110 V AC, 50 Hz ??? 10 % mains powered.
• VA rating: 15 VA
• Terminal: Screwed type suitable for 2.5 sq. mm conductors

Presents new  & unique model of universal calibrator suitable for process instruments having mv, ma & rtd signals for calibration of all type of instruments. Compact battery cum power  operated model buc – 103 which have source / sink facility by rugged mechanical connector & toggle switch. 4-½ digit large display, sufficient large scale for all ¾ sources, self-calibration facilities


Specialty of our calibrator is rtd readings are direct in degree ‘c’ instead of ohms / resistance & can feed accordingly. Light weight easy to carry in bag. Mains operated as battery consumption will be less & restricted. We provide calibration certification traceable to npl std

function	range	resolution at 25c	accuracy	load
dc mv(source / sink)	199. 9	0. 1 mv	0. 1% of f. S. D	5 ma max
dc ma (source / sink)	25 ma	10 v	0. 1% of f. S. D	5000 at 20 ma
rtd(source / sink)	-100 to +400 c or 247. 0	100	0. 15% of f. S. D (for 0 to 400c)	0. 25 watts

Offers Potentiometric Circular Chart Recorders for various Processes Industries with High Accuracy and fast response to the change in Parameters having rugged assembly for any Environmental conditions. Sealed potentiometers Japan makes are used suitable for environmental conditions. Straight or arc shape charts available. Display with single set point controllers can be in corporate in some models. Pen & charts are available of other makes also. Different models in Single Pen, Two Pens Recorder is manufactured in 152 mm, and 270 mm Chart Diameter having Speed of 24 Hours per Revolution or 7 days per Revolution as per the specifications. Inputs of Temperature, RTD, Thermocouple. Linear Input like 4 - 20 m Amp, 0 - 10 V Dc or as specified are manufactured Taylor made. Useful for Parameters likes, Temperature, Humidity, Flow, Current, Voltage, pH, Conductivity etc.


New Arrivals:

• Proprocessor Based Programmable Chart Recorders
• Input = Mv / Ma / Rtd (Selectable), Range = Programmable
• Chart Speed – Selectable (15 / 30 / 60 / 120 …… 940 Mm / Hr) High / Low Alarm Selectable
• Front Key Operated With 3 ½ Digit Led Display Optional Rs 232 / Rs 485 Serial Port

Model No	Panel Cut Out A(W)xB(H)xC(D)	Overall Size W x H	Weight Kg.
C-60-R (1 pen)	185 x 185 x 120	225 x 200	4
C-60-TP (2 pen)	220 x 220 x 250	275 x 245	9
C-100-R (1 pen)	344 x 344 x 120	385 x 360	9
C-100-TP (2 pen)	344 x 344 x 120	385 x 360	12

The EE75 series air velocity transmitters were developed to obtain accurate measuring results over a wide range of velocities and temperatures.

A high-quality hot film sensor element based on cutting-edge thin film technology ensures maximum sensitivity. even at lowest mass flows. At the 8881e time, the innovative probe design produces reliable measuring results at high flow velocities of up to 40m/s (8000ft/min)

The integrated temperature compensation minimizes the temperature cross-sensitivity of the EE75 series which, combined with the robust mechanical design. allows it to be used at process temperatures between -40 to 4120°C (40 to 248°F).

In addition to air velocity and temperature values, the transmitter calculates the volumetric flow rate in m3/h or ft3/min. The cross section of the duct needs to be determined for this purpose and the volumetric flow rate can be displayed and directed to one of the analogue outputs.

The configuration software included in the scope of supply allays to choose the appropriate output parameter and freely scale the display range arid signs level of the two analogue outputs. In addition user-friendly calibration of the air velocity and temperature and the adjustment of key parameters (e.g. response time of the velocity and temperature lay flow cut-off points, etc.} are supported as well.

An optional illuminated display with two control buttons integrated in the cover is available. In addition. this enables changes of the configuration to be made directly on the unit.

Specifications :

Wind Direction Sensor	Wind Vane.
Sensing	Vane coupled to linear endless potentiometer.
Starting threshold	Better than 0.5 meters/sec.
Range	0 to 357 degrees (3 degrees electrical gap in the Potentiometer
Output	0 to 5 kilo ohm resistance ( 0 to 357 degrees).
Resolution	1 degree.
Accuracy	+/ 3 degrees.
Operating Temperature	-40 to + 60 degree Celsius
Construction of sensor body	Brass housing, stainless steel shaft and aluminum vane

Principle Of Operation:

Wind vane is a counter balanced, low threshold wind vane. A Linear, wire wound endless potentiometer is coupled to the vane by an SS shaft. As the vane turns, it rotates a stainless steel shaft  which is coupled to the potentiometer. This potentiometer has excellent linearity, very low starting torque.

The north of the wind vane is marked on its body. This line is to be aligned with actual North with the help of prismatic compass, at the time of installation. Sensor gives minimum resistance at North (i.e., 0 degree approximately 20 ohms ). The resistance output linearly proportional to the position of the wind vane.

 Wind Vane :

•  Vane coupled to linear endless potentiometer.
•  Better than 0.5 meters/sec.
•  0 to 357 degrees (3 degrees electrical gap in the

Range :

• Potentiometer
• Output
• 0 to 5 kilo ohm resistance ( 0 to 357 degrees).

Resolution :

 1 degree

Accuracy :

+/ 3 degrees.

Operating Temperature :
 -40 to + 60 degree Celsius

Brass housing, stainless steel shaft and aluminum
Construction of sensor body vane

Wind Direction Sensor

• Sensing
• Starting threshold

Principle Of Operation :

Wind Vane is a counter balanced, low threshold wind vane. A Linear, wire wound endless potentiometer is coupled to the vane by an SS shaft. As the vane turns, it rotates a stainless steel shaft which is coupled to the potentiometer. This potentiometer has excellent linearity, very low starting torque.

The north of the wind vane is marked on its body. This line is to be aligned with actual North with the help of prismatic compass, at the time of installation. Sensor gives minimum resistance at North (i.e., 0 degree approximately 20 ohms ). The resistance
output linearly proportional to the position of the wind vane.

Sunpro Instruments (I) PVT. LTD. Presents New & unique model of Universal Calibrator suitable for process instruments having mV, mA & RTD signals for calibration of all type of Instruments. Compact battery cum power operated model BUC – 103 which have source / sink facility by rugged mechanical connector & toggle switch. 4-½ digit large display, sufficient large scale for all ¾ sources, self-calibration facilities

Function :

• DC mV(Source / Sink)
• DC mA (Source / Sink)
• RTD(Source / Sink)

Range :

• 199.9
• 25 mA
• -100 to
• +400°C OR
• 247.0
• Resolution at
• 25°C
• 0.1 mV
• 10 µV
• 100 µ

Accuracy :

• ±0.1% of
• F.S.D
• ±0.1% of
• F.S.D
• ±0.15% of
• F.S.D
• (For 0 to
• 400°C)

Load

• 5 mA Max
• 5000 at 20 mA
• 0.25 watts.