SPECIFICATIONS :
A. Electrical :
Model 4150 A - Analog Comparators.
Model 4150 D - Digital Comparators.
Model 4150 M - Keyboard Programmbale.

1. Input Sensors :
a) Thermocouple : Type B, E, J, K, R, S, T with in built cold junction compensation and inbuilt linearisation in case of model 4150 M.
b) RTD : PT100 or PT 1000 with inbuilt linearisation in case of model 4150M.
c) Pressure : Any pressure transducer like piezo resistive, strain guage. The instrument generates 10 V DC excitation voltage for 350 W, bridge transducer.
d) 4 to 20 mA : from a two wire transmitter.
e) 0 to 2V DC : from any sensor.

ACCURACY :
a) +/- 0.05% of the range +/- 1 digit in case of 4 ½ digit display and
b) +/- 0.02 of the range +/- 1 digit in case of 3 ½ digit display

DISPLAY :
3 ½ or 4 ½ Digit 7 segment LED display with external decimal point programming facility.

SET POINTS :
a) Can be set by potentiometer adjustment in model 4150A.
b) Thumbwheel switches for setting in Model 4150D.
c) Keyboard programmable in Model 4150M.

MAXIMUM READING :
a) 19999 for 4 ½ & 1999 for 3 ½ in both 4150A and 4150D models.
b) 4095 counts for 4150M model.

CONVERSION SPEED :
3 readings per second for all models using integrating type ADC with response time less than a second.

ADJUSTMENT :
Zero and Span adjustment possible by potentiometers.

RELAY :
a) Output changeover available on the back panel on screw terminals for ON/OFF control.
b) Contact Rating - 4A, 240V AC.

WORKING VOLTAGE :
a) 240 V AC +/- 15%, 50Hz or
b) 110 V AC +/- 15%, 50Hz.

NO. OF SETPOINTS :
a) Two
b) Can be set by potentiometer and indicated while setting by the same display by pressing a switch in Model 4150A.
c) Thumbwheel switches for setting in model 4150D.
d) Keyboard programmable in Model 4150M.
e) Setpoint can be made to operate for > or < in case of models 4150D and 4150M.

ENVIRONMENTAL :
a) Working temperature range : 0 to 50ºC upto 90% R.H.
b) Storage temperature range : 0 to 70ºC upto 95% R.H.

MECHANICAL :
a) Size : 96 x 96 x 200 mm DIN STD box with cutout 92 x 92 mm.
b) Weight : Approx. 1 kg. In view of continuous efforts of development we reserve the rights of changing any illustration or specification without prior notice.