Ametek Jofra CTC-350 Dry Block Calibrator (28 TO 350 C)

Temperature
Temperature Range
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 to 350°C / 82 to 662°F
Lowest calibration temperature. . . . . . . . . . ambient +5°C / 41°F
Accuracy
CTC-350 with internal ref. sensor. . . . . . . . . . . . . ±0.45°C /±0.81°F
CTC-350 with STS-120. . . . . . . . . . . . . . . . . . . . . . . . ±0.25°C /±0.45°F
Stability
CTC-350. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±0.05°C / ±0.09°F
Measured after the stability indicator has been on for 10 minutes.
Measuring time is 30 minutes.
Radial Homogeneity (difference between holes)
CTC-350. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.04°C / 0.072°F
Settings
Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 or 0.1 or 0.01
Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .°C or °F or K
Heating Time
CTC-350. . . . . . . . . . . . . 23 to 350°C / 73 to 662°F. . . . .6 minutes
All specifications are given with an ambient temperature 23° C/73.4° F
± 3° C/5.9° F. Specified at 115 V/230 V.
Cooling Time
CTC-350. . . . . . . . . . 350 to 100°C / 662 to 212°F. . . 18 minutes
CTC-350. . . . . . . . . . . .100 to 50°C / 212 to 122°F. . . 13 minutes
Time to Stability (typical)
CTC-350. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 minutes

Mains Power
Voltage. . . . . . . . . . . . . . . . . . . . . .115 V (90-127) / 230 V (180-254)
Max Power Consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1150 VA
Frequency, US deliveries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Hz ±3
Frequency, non US deliveries. . . . . . . . . . . . . . . 50 Hz ±3, 60 Hz ±3

Physical Specifications
Dimension L x W x H. . .248x148x305 mm / 9.76x5.83x12.01 in
Weight
CTC-350. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 kg / 11 lb
Immersion Depth
CTC-350. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 mm / 4.53 in
Well diameter
CTC-350. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 mm / 1.02 in
Insert Dimensions (diameter x length)
CTC-350. . . . . . . . . . . . . . . . . . 25,7 mm x 120 mm / 1.01 x 4.72 in

Electrical
Switch Input (dry contact)
Test Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Maximum 14 VDC
Test Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum 1 mA
Digital Interface
USB 2.0

Environmental
Operating Temperature
0 to 50°C / 32 to 122°F
Storage Temperature
-20 to 50°C / -4 to 122°F
Humidity
5 to 90% Rh, non-condensing
Protection Class
IP-10

External reference sensor
STS-120-A-935. . . . . . . . . . . . . . . . . . . . . . . . 0 to 350°C / 32 to 662°F
Accuracy
Hysteresis (@ 0°C / 32°F) . . . . . . . . . . . . . . . . . . . . . . 0.01°C / 0.018°F
Long Term Stability (@ 0°C / 32°F). . . . . . . . . . . . 0.014°C / 0.025°F
Repeatability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.004°C/ 0.007°F
Sensing element
Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pt100
Response time
STS-120-A : t0.5 (50%). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 sec.
STS-120-A: t0.9 (90%) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 sec.
Dimensions
Diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 mm / 0.157 in
Length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 mm / 5.32 in
Max. height over calibrator top. . . . . . . . . . . . . . . . .10 mm / 0.39 in