Manufacturers of Process
Control Instruments
We are an eminent Manufacturer and exporters of Process Control Instruments. Our Quality Instrumentation Products have already remained TIME PROVEN.
Steam Flow Meters-845S
 
 
7632
( 96*96, 5 digit for FR )
 
DSC00359

( 96*96, LCD display )

 
C-0589
( Wall mount enclosure )
 
DSC00355
( Wall mount enclosure )
 
C-0640
( FLP Enclosure )
spadcerpdfspadcerrequest
 
  • Rugged & Time Proven Designs
  • Microprocessor type and Fully Configurable
  • Computes Mass Flow rate as per Standard Gas Equations
  • Pressure / Temp. Compensations given
  • Retransmission output on FLOW RATE
  • 8 digit resolution for Totalizer / Batch value
  • Transmitter P.S. @ 24 V DC for each transmitter
  • Various sizes / Mountings / Enclosures supported
 
MASS FLOW INDICATORS / CONTROLLERS STEAM FLOW METERING SYSTEMS MODEL 845S ( Microprocessor based electronics )
 

Introduction

 
Pantech Instrument’s Model 845S represents FLOW INDICATORS / TOTALIZERS / CONTROLLERS for mass flow applications related to STEAMS flow. The instrument is so designed to accept 3 inputs of FLOW, PRESSURE and TEMPERATURE at a time. Based on these inputs, and  high end algorithms of STEAM TABLES fed in the chip, the instrument calculates MASS INSTANTANEOUS FLOW RATE to a resolution of 4/4.5 digits.

TOTALIZED value is displayed through 8 digits red LED and this totalizer value is always protected against power failures through internal memory structures of microprocessor. Optionally the instrument is designed to give two contact relay outputs and a RETRANSMISSION ISOLATED signal on INSTANTANEOUS FLOW RATE. Serial communication outputs for computer system interfaces are also given optionally. All configurations, calibrations and output fine tunings etc.

can be performed by front four keys only without opening the instrument. In the core of all the functions lies the latest and highly proven microprocessor based chipsets. The high end softwares ensure the most user friendly interactions by the user. The instrument incorporates low drift operational amplifiers and industrial grade components for long trouble free operation. Burn in of each module ensures long trouble free operations.


Model 845S at a glance :

  1. Used for the MASS FLOW CALCULATION of STEAMS particularly.

  2. Accepts upto three inputs FLOW ( mA ), PRESSURE ( mA ), TEMP ( mA / RTD Pt.100 / Thcpl ).

  3. Gives efficient Pressure and Temp. Compensations for MASS FLOW CALCULATIONS.

  4. Refers Hi end Algorithms along with Steam Tables data fed in the microprocessor chip.

  5. The instrument can be configured to work on : SATURATED or SUPERHEATED or BOTH.

  6. The user is allowed to FEED IN Max Pressure range ( in Bars ), Operating Pressure in Bar, Operating Temp. in Deg. C, Flow range.

  7. Calculates Flow rates in NM3/Hr. or SM3/Hr. . – as selected.


Pre-requisite data from the client :

  1. Max. / Min. / Operating Flow rates of the system

  2. Max. / Min. / Operating Pressure in line

  3. Line size

  4. Metering principle Orifice / Vortex

 
Specifications
 

Inputs – 3 nos.

FLOW– 4-20mA / 0-20 mA DC / other linear type
PRESSURE – 4-20 mA / 0-20 mA DC / other linear type
TEMP.- 4-20 mA DC / RTD Pt. 100-3 wire / Thcpl with type
* The user can choose to bypass any of the pressure or temp. signal input incase that compensation not reqd. however in this case, the steam type and its flow calculation is a virtue of its input types totally.

 

Calculations – Configurable by front keys
Saturated steams
Superheated steams
Both – In AUTO MODE
* In AUTO mode, the instrument keeps sensing the shift overs of steam type and calculates accordingly automatically.

Analog output

  1. Isolated / Non Isolated 4 – 20 mA DC

  2. Isolated / Non Isolated 0-10 V DC

  3. Other types on factory confirmations

 

Contact output

Maximum 2 sets of C,NC,NO on FLOW RATE

 

Display (any one type)

  1. 5 digit red LED for Instant flow rate, 3 digit green LED for Engg. Unit display, 8 digit red LED for totalized value ( LED size : 0.25” ) ( Engg. Units selectable )

  2. 16*2 Alphanumeric LCD with above resolutions.

 

Accuracy

+/-0.1% of span

 

Transmitter Power

3*24 V DC @ 40 mA

Other types on factory confirmations

 

Power supply
  1. 24 V DC

  2. 110 V AC, 50 Hz, +/- 10%

  3. 230 V AC, 50 Hz, +/- 10%

  4. 90-270 V AC – SMPS type

  5. Specials on factory confirmations

 


 

 

Backup

Zero power RAM provided backup for data

 

Power consumption

6 VA max.

 

Ambient temperature

0 – 50 °C.

 

Storage temperature

0 – 70 °C.

 

Humidity

90% RH (non-condensing)

 

Security

Single level – Password protected

 

Enclosures

Weatherproof, Flameproof and all other standard types

 

Mounting

Panel / Wall / Field

 

Dimensions

96*96 / 72*144 / 144*144 / SPECIALS

*All config/calibration from front keys only

  • Following table describes the availability of several models with the company right now. A general preview is only presented to the user. The dimensional and display sizes are the relational virtues of each other and hence the user is always requested to clarify the specifications of instrument with the factory prior to placement of the order.

  • On confirmation with factory, changes of all types in all specifications is possible

 

Model

Mounting & Dimension in mm (H * W * D)

Input

Power

Output option

Indication Options

Display size

Analog output

Contact output

Display resolution

Counter resolution

845S

Panel

 

 

 

 

 

 

 

 

96*96*150

All

All

Yes

Yes

4 digit

8 digit

½“- ¼” size

144*72*150

All

All

Yes

Yes

4 digit

8 digit

½”- ¼” size

144*144*150

All

All

Yes

Yes

4 digit

8 digit

½” size

Wall

Opttimum

All

All

Yes

Yes

4 digit

8 digit

4” size

 
 
Ordering Information
 
Please confirm the availability of the model by cross checking the table mentioned on the backside.

Basic Model No. (Specified by first 3 digits)

845S - Mass flow meters for STEAMS

 

Flow Principle (Specified by the next digit / letter)
O - Orifice type
V - Vortex type

Input (Specified by the next digit / letter)

P - Weatherproof - Panel

W - Weatherproof - Wall

F - Flameproof - Wall / field

I - IP65 grade – wall / field

S - Specials

 

Input (Specified by first digit following the letter)

1 - 3 * ( 4-20 mA DC )

2 - 2 * ( 4-20 mA DC ) & RTD

3 - 2 * ( 4-20 mA DC ) & Thcpl

 

Power option (Specified by the next digit / letter)

1 - 24 V DC

2 - 110 V AC

3 - 230 V AC

4 - 90-270 V AC – SMPS type

S - Specials

 

 

Analog O/P Option (Specified by the next digit / letter)

0 - None

1 - mA/V DC isolated

2 - mA/V DC non-isolated

S - Specials

 

Contact output option (Specified by the next digit / letter)

0 - None

1 - 1NO + 1NC on flow

2 - 2NO + 2NC on flow

 

Display Resolution (Specified by the next digit / letter)

1 - 4 digit instantaneous
     4 digit for Eng.units
     8 digit totalizer 2 - 16*
2 alphanumeric LCD with above resolution

** Please mention the color of displays clearly

 

** Customized developments can be made if the quantity permits

 
 

Made in India By:

 

PANTECH INSTRUMENTS,

102, Shailja Complex II,

Akota – Padra Road,

Nr. R. C. Patel Ind. Estate,

Vadodara – 390 020.

Telefax: (265) 2331380/6616080

Mobile: +9198240 16466/ + 9199242 10722