Mini Model Oil Based Temperature Calibration Bath Suitable for Ambient to 250 Deg C

Description

Range Ambient to 250 Deg C

Purpose: “Ji” Temperature Calibration oil bath is used to obtain precise temperature for calibration of RTD’s, (LIG) Liquid in Glass Thermometer, Thermocouples & PRTs, SPRTs.

The test instrument TB – 250 is a portable unit for service / calibrating / testing purpose as well as for operating & laboratory tasks.

1) After switching on the mains power switch the PID controller shows the temperature of the block. (PV). Below that green colour LED shows the set value of the block (SV).

2) To adjust the set point, press key (2) then a dot LED blinks near the first digit, then using up key (3) & down key (4) set the 0 – 9 digit again push the (2) key to move the dot LED to the second digit using up & down key.

3) After setting the set point value press the set (1) key for setting the temperatures.

4) For auto tuning press (2) key for 2 seconds the ‘At’ from OFF to ON. Then press (1) key to active the auto tuning process, During auto tuning, the instrument executes on contr. After 2 cycles of ON – OFF action, the instrument will obtain the values of PID parameters.

5) If you want to escape from auto tuning status, press& hold key (2) for about 2 seconds until ‘At’ parameters appear again. Change ‘At’ from ‘ON’ to ‘OFF’ press (1) key to confirm, then the auto tuning process will be cancelled.

6) The PV shows continuously the temperature of the heating block. If the adjusted set temperature in the heating block is reached, the heating energy radiated from the block is dispensed by short switching on pulses of the heating cartridge, so the temperature inside the block is kept constant.

7) Cooling down the heating lock can be done quickly by switching ON the fan which produces higher amount of cooling air.