PID Autotune Temperature Controllers, Universal Timers / Counters, RPM Indicators, Mumbai, India
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Version : VALBOD-1P


The instrument accepts RTD sensor (1 no). The indicating accuracy is ± 0.1° C throughout the operating range (0 – 65.0 ° C). The control accuracy is ± 0.5° C. Sensor break indication is provided and is displayed as “OPEN”. The heat control action can be independently configured viz. always ON, ON-OFF or always OFF. It is a proportioning on-off type of control with a SSR(solid state relay) drive output. The heater status is shown on the LED marked ‘HEAT’.

Similarly, the compressor control action can be independently configured viz. always ON, ON-OFF or always OFF. The cooling control action is on-off type with a dead band of 0.2°C below the control set point. and also a presettable compressor on delay timer (30 to 300 seconds). The compressor status is shown on the LED ‘COOL’.

There are safety high and low temperature interlocks. These set points are user selectable. The controller will work only if the temperature in the incubator is within these limits. Above or below which, the heater and the compressor are put off. The process value flashes on the display to indicate that the temperature is out of permissible limits. Real time recording is provided with up to 6000 readings storage capacity. The real time clock & calendar chip keeps time. It is battery backed with an auto re-chargeable Ni-Cd battery. The logging interval is user selectable (1 – 99 minutes). For example, if logging interval is set to 1 minute, approximately 100 hours of data can be stored; whereas, if logging interval is set to 45 minutes, approximately 6 months of data can be stored.

WARNING: - After 6000 memory locations have been logged, the new data is over written on memory location 1 onwards.
The printing is not on-line, but only on request. The printer should be attached to the unit only when a hard copy is needed. This implies that only one printer is needed for many incubators.
The print interface is a serial interface type: RS 232 C with selectable baud, 1 start bit, 8 data bits and no parity bit. As such, it is directly compatible with any dot matrix printer with RS 232 C port e.g. LX-300, LX-300+ (EPSON).

  1. Size. :- 96 x 96 x 120 mm (L x B x D)
2. Operating Voltage :- 230 VAC +/- 10 % @50 Hz
3. Analog Inputs :- 4 nos. Pt. 100 – 3 wire.
4. Range :- 0 to 60.0 °C
5. Indicating Accuracy :- + / - 0.2 °C (linearised throughout the range)
6. Control Accuracy :- + /- 0.5 °C
7. Control Output :- SSR drive output
8. Alarm Output :- Peizo-Electric Buzzer compatible o/p
9. MMI :- 16x2 LCD Panel, 6 Key Membrane Keypad.
10. Printer Port :- RS232 Serial interface with programmable baud (1200 to 19200)
Contact Details -
A/20, Karuna Park, Andheri Kurla Rd., Andheri (E), Mumbai - 400093., Maharashtra, India.
Tel No.- (022) 65221849, Mob. No.- + 91 9819733167