Specifications

tecal portable dri-block
®
calibrators
7
Tecal 425S/H
These calibrators use large aluminium Heater blocks to give fast heating and cooling rates which
provide high accuracy, uniformity and stability up to 425°C.
S Version: Set required Temperature and Calibrate
H Version: Set required Temperature and Calibrate also programmable for switch test and ramp
rate etc.
Both 425 models are equipped with a large fan in order to quickly cool the blocks to 20 degrees
above ambient. Suitable for many applications in both the field and laboratory .
Technical Specification
Minimum temperature 20°C above ambient
Maximum temperature 425°C
Temperature accuracy in measuring zone ±0.3°C
Temperature uniformity in measuring zone ±0.2°C
1
Measuring zone 0 to 50mm from base of well
Temperature stability after 10min ±0.05°C
Display resolution 0.1°C
Heating rate, 20°C to 400°C ( 230/120v ) 15 minutes
Cooling rate, 400°C to 100°C 25 minutes
Programmable ramp rate, °C/min 0.1 to 10, on H version
Switch test on H version
Fan cooling Automatic
Comms port, 9 way D type Full bi-directional RS-232
Weight, kg 9.2(S), 9.6(H)
Dimensions H x W x D, mm 285 x 190 x 426
1
At 300°C
Ordering Information
Product Model Voltage Hz Watts Net
Code Weight (kg)
FDB425SD TECAL 425S 230V 50/60 700 9.5
FDB425SP TECAL 425S 120V 50/60 700 9.5
FDB425SY TECAL 425S 100V 50/60 500 9.5
FDB425HD TECAL 425H 230V 50/60 700 10.0
FDB425HP TECAL 425H 120V 50/60 700 10.0
FDB425HY TECAL 425H 100V 50/60 500 10.0
Accessories
The Cooling Probe can beused to rapidly cool the insert – chilled water passes through the
probe that fits inserts with 10mm ø hole or larger.
Product Model Net
Code Weight (kg)
FDB00CP Cooling Probe for 425,650,700X 0.4kg
FCALCASE Hard Carry case for Tecal H and S models 8.6kg
425S
425H
See page 9 for full range of inserts available.