Manufacturers of Process
Control Instruments
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RPM / Speed Indicators & Controllers-857
 
 
7618
( 96*96, 0.5” display )
 
7659
( 96*48, 0.5” display )
 
7657
( 96*48, 0.8” display )
 
7616
( 72*72, 0.5” display )
 
7661
( 96*48, 4.5 digits type )
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  • 1.Rugged and Time proven designs.
  • 2.Universal Pulse / Proximity inputs.
  • 3.Up based & Fully configurable.
  • 4.4/4.5 digit displays available.
  • 5.Gives max. 4 on/off outputs.
  • 6.Retransmission output on Speed.
  • 7.Transmitter P.S. @ 12/24V DC.
  • 8.Various sizes / Mountings / Enclosures supported.
  • RS-485 Comm. O/P provided.
 
MODEL 857 RPM INDICATOR CUM CONTROLLER

( Microprocessor based & Fully Configurable )

 

Introduction

 

Pantech's RPM Indicator cum Controller, model 857 is an ideal instrument for measuring the speed of any rotating part. The input signal can be pulses from any PULSE generating device . The basic feed in parameter for RPM calculation and display is PPR ( Pulse per Revolution Ratio ). Based on these feed ins, the instrument comes up with a definite display for SPEED. Model 857 is capable to display the RPM value to the resolution of maximum 4/4.5 digits with programmable range selection. However the RPM value is auto calculated, but this programmed range can set the value of retransmission signals which can be optionally taken from the instrument. Further it can be designed to generate maximum of 4 nos. of potential free contacts. All the configurations like : PPR, setpoints, alarm types, ZERO and SPAN for retransmission etc. can be done with the help of front keys only . It is also facilitated with internal transmitter power supply of 12/24 V DC, to power up proximity sensors.

 

The instruments are available in panel mounting as well as wall mounting versions. All models can be operated on 24V DC, 230V AC and 110V AC power supplies. Power supply is isolated from rest of the circuit.

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 operation.

 
Specifications
 

Input – Any one of the below

PNP / NPN Proximity ( NC type ) – 3 wire

PNP / NPN Proximity ( NO type ) – 3 wire

Magnetic pickup – 2/3 wire

Namur type – 2/3 wire

UNIVERSAL – with all the above types

Specials

** The user is required to give FREQUENCY value

FEED IN PARAMETERS

PPR ratio

SETPOINT / ALM. Type/ HYST. ( for c/o o/p )

Z and S ( for retransmission )

 

Display Range

Auto calculated

 

Alarms

Maximum 4 nos. of potential free contacts.

 

Analog output
  1. Isolated / Non Isolated 4 – 20 mA DC

  2. Isolated / Non Isolated 0-10 V DC

  3. Other types on factory confirmations

 

Analog output load capability

800Ω maximum with 4-20 mA DC output

 

Output accuracy

+/- 0.1% of span

 

Display accuracy

+/- 0.1% of span

 

Transmitter power

12/24 V DC for proximity sensors

Specials

 

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

  5. Specials

 

 

Contact ratings

230 V AC, 5 Amps.

Security

Single level – password protected

 

Power consumption

4 VA max.

 

Ambient temperature

0 – 50° C.

 

Storage temperature

0 – 70° C.

 

Humidity

90% RH (non-condensing)

Enclosures

Weatherproof, Flameproof and all other standard types

Mounting

Panel / Wall / Field / Dinrail / Eurocard

Dimensions

96*96 / 96*48 / 72*72 / 48 * 48 / 72*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)

Inputs

Range

Power

Alarms

Analog output

4–20 mA DC

Isolated

Non isolated

Display resolution

Display size

857

Panel

96*96*110

Pulses

All

All

Max.4

Yes

Yes

4 digit max.

½” size

48*96*110

Pulses

All

All

Max.2

No

Yes

4 digit max.

½” size

144*72*150

Pulses

All

All

Max.4

No

Yes

4 digit max.

½” size

 
  • flame proof versions available

  • Customized changes in above model possible if qty. permits

  • Length counting version possible in this instrument

 
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)

857 - Programmable RPM

Indicator cum Controller.

Mounting (Specified by letter following 3 digits)

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 - PNP – 3 wire

2 - NPN – 3 wire

3 - Namur type – 2 wire

4 - Magnetic pickup

U - Universal

S - SPECIALS

 

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

S - SPECIALS

Alarms Option (Specified by the next digit / letter)

0 - None

1 - 1 no. of alarm

2 - 2 no. of alarms

3 - 3 no. of alarms

4 - 4 no. of alarms

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

0 - None

1 - mA/V DC isolated

2 - mA/V DC non-isolated

3 - Any other type of outptus

 

** 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