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- 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
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| MASS FLOW INDICATORS / CONTROLLERS � STEAM FLOW METERING SYSTEMS
MODEL 845S ( Microprocessor based electronics ) |
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| Introduction
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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 :
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Used for the MASS FLOW CALCULATION of STEAMS particularly.
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Accepts upto three inputs � FLOW ( mA ), PRESSURE ( mA ), TEMP ( mA / RTD Pt.100 / Thcpl ).
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Gives efficient Pressure and Temp. Compensations for MASS FLOW CALCULATIONS.
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Refers Hi end Algorithms along with Steam Tables data fed in the microprocessor chip.
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The instrument can be configured to work on : SATURATED or SUPERHEATED or BOTH.
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The user is allowed to FEED IN � Max Pressure range ( in Bars ), Operating Pressure in Bar, Operating Temp. in Deg. C, Flow range.
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Calculates Flow rates in NM3/Hr. or SM3/Hr. . – as selected.
Pre-requisite data from the client :
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Max. / Min. / Operating Flow rates of the system
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Max. / Min. / Operating Pressure in line
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Line size
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Metering principle � Orifice / Vortex
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| Specifications |
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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
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Isolated / Non Isolated 4 – 20 mA DC
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Isolated / Non Isolated 0-10 V DC
Other types on factory confirmations
Contact output
Maximum 2 sets of C,NC,NO on FLOW RATE
Display (any one type)
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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 )
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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
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24 V DC
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110 V AC, 50 Hz, +/- 10%
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230 V AC, 50 Hz, +/- 10%
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90-270 V AC – SMPS type
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Specials on factory confirmations
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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
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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.
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On confirmation with factory, changes of all types in all specifications is possible
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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 |
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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 |
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| Ordering Information |
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Please confirm the availability of the model by cross checking the table mentioned on the backside. |
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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
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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 |
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** Customized developments can be made if the quantity permits |
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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 |
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