Specifications

tecal portable dri-block
®
calibrators
6
tecal portable dri-block
®
calibrators
Tecal 425H
These calibrators use large aluminum heater blocks to give fast heating and cooling rates which
provide high accuracy, uniformity and stability up to 425°C.
Technical Speci cations
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 (at 300°C)
Measuring zone 0 to 5cm 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 21 lbs
Dimensions (W x D x H) 19 x 42.6 x 28.5 cm
Tecal 650H
For high operating temperatures up to 650°C, the 650 models have large aluminum-bronze blocks
which accept large single or multi-hole inserts. These inserts can accommodate probes to a depth
of 6”, providing high stability and uniformity. All models are equipped with high-powered band
heaters and two fans in order to rapidly heat and cool the temperature probe block to the required
range of temperatures.
Technical Speci cations
Minimum temperature 25°C above ambient
Maximum temperature 650°C
Temperature accuracy in measuring zone. ±0.4°C
Temperature uniformity in measuring zone ±1°C (at 400°C)
Measuring zone 0 to 5 cm from base of well
Temperature stability after 10mins ±0.09°C
Display resolution 0.1°C
Heating rate, 20°C to 600°C 35 minutes
Cooling rate, 600°C to 200°C 30 minutes
Programmable ramp rate, °C/min 0.1 to 10
Switch test Yes
Comms port, 9 way D type Full bi-directional RS-232
Weight 28 lbs
Dimensions (W x D x H) 19 x 42.6 x 28.5 cm
Immersion Depth = 6”
Ordering Information
Product Model Voltage Hz Watts Net
Code Weight (lbs)
3026800 TECAL 425H 230V 50/60 700 21
3026200 TECAL 425H 120V 50/60 700 21
3027000 TECAL 650H 230V 50/60 1100 28
3026400 TECAL 650H 120V 50/60 1100 28
Accessories
7032395 Cooling probe for 425, 650, 700X
7032784 Hard carry case for Tecal
The Cooling probe can be used to rapidly cool the insert – chilled water passes through the probe that  ts inserts (3/8” OD).
425H
650H
See page 6 for full range of inserts available.