Pantech Instruments


	Indicators / Controllers
	Signal Isolators Convertors
	Signal Isolator ( Multiple I/P, Multiple O/P )
	Signal Processors
	Square Root Extractors
	Flow Instruments Batch Controllers
	Transmitters
	Pressure
	Loop Powered Indicators
	Control Stations A & M Stations
	Digital Timers

:: Signal Processors : Computation Module

> Introduction ::

Pantech's Computation Module, model 838 is designed to accept upto three inputs and provide a computed output of 4 – 20 mA DC capable of driving a load of upto 800. as per the equation OUTPUT – (A + BX) * (C + DY) / (E + FZ) where A, B, C, D, E & F are constants and X, Y & Z are three inputs. The module accepts 4 – 20 mA DC signal from two wire and not two wire transmitters. The transmitter power supply to feed upto three two wire transmitters is available as option. The module also accepts 1 – 5 V DC signals.

The module is available in a wall-mounted housing. The modules can be powered from 110V AC or 230V AC or 24 V DC power sources. Power supply is isolated from rest of the electronics.

The modules incorporate low drift operational amplifiers and industrial grade components. Burn in of each module ensures long trouble free operation.

> Specifications ::

Input * 3

1) Current, 4 - 20 mA DC/ 0 - 20 mA DC
2) Voltage, 1 - 5 V DC/ 0 - 10 V DC

Input impedance

200 K for Voltage, mV & T/C inputs
250 for current inputs

Analog output

1) Isolated 4 - 20 mA DC ( Computed )
2) Non Isolated 4 - 20 mA DC ( Computed )

Analog output load capability

800 maximum

Output accuracy

+/- 0.25% of span

Transmitter power * 3

24 V DC for current inputs

Power supply

1) 24 V DC
2) 110 V AC, 50 Hz, +/- 10%
3) 230 V AC, 50 Hz, +/- 10%

Power consumption

4 VA max.

Ambient temperature

0 - 50° C.

Storage temperature

0 - 70° C.

Humidity

90% RH (non-condensing)

Mounting	Dimension	Inputs	Power	Analog Output 4 - 20 mA DC
				Isolated	Non Isolated
Wall	195 * 70 * 115	All	All	Yes	Yes

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