JOFRA CTC-155 Compact Temperature Calibrator
JOFRA CTC-155 compact dry-block calibrator, −25 to 155°C, for fast on-site sensor calibration.
Pick your exact configuration in the ordering table below to add it to your cart.
Same-day response on quotes. ISO/IEC 17025 accredited calibration available.
Overview
The CTC-155 covers −25 to 155°C (−13 to 311°F). The JOFRA CTC Series is a compact dry-block calibrator for fast, accurate on-site work in oil and gas, pharmaceuticals, food processing, and HVAC. Across five models the series covers −25 to 1205°C (−13 to 2201°F), with accuracy up to ±0.2°C and stability of ±0.04°C. A large color display and one-key, one-function buttons provide automatic switch testing and auto-stepping. The CTC-652 offers 190 mm immersion depth for long sensors, and all C models include an input for an external reference sensor. MVI (Mains Voltage Immunity) circuitry maintains stability when supply voltage varies.
Specifications
| Temperature | |
| Range (ambient 23°C) | −25 to 155°C / −13 to 311°F |
| Range (ambient 0°C / 50°C) | −39 to 155°C / −7 to 155°C |
| Accuracy | |
| Accuracy, internal reference | ±0.3°C / ±0.54°F |
| Accuracy, external reference (STS-102-A or STS-120-A-915) | ±0.2°C / ±0.36°F |
| Stability | |
| Stability | ±0.04°C / ±0.07°F |
| Radial homogeneity | 0.03°C @ 155°C; 0.02°C @ −25°C |
| Speed | |
| Heating time | 23 to 155°C in 13 minutes |
| Cooling time | 155 to 23°C in 12 minutes; 23 to −25°C in 16 minutes |
| Time to stability (typical) | 10 minutes |
| Mechanical | |
| Immersion depth (incl. insulation plug) | 120 mm / 4.53 in |
| Well diameter | 26 mm / 1.02 in |
| Insert dimensions (Ø × length) | 25.8 × 100 mm |
| Dimensions (L × W × H) | 248 × 148 × 305 mm / 9.76 × 5.83 × 12.01 in |
| Weight | 5.5 kg / 12.1 lb |
| Electrical | |
| Max power consumption | 130 VA |
| Switch input (dry contact) | Max 14 VDC / 1 mA |
| Interface | |
| Digital interface | USB 2.0 |
| Environmental | |
| Operating temperature | 0 to 50°C / 32 to 122°F |
| Protection class | IP-10 |
| Source | |
| Specification source | JOFRA CTC-155/350/652/660 datasheet (AMETEK STC), model CTC-155 |
Documents
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Configure your CTC155
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Select a model version, power supply, mains cable to build your part number.
Well / insert codes and prices are from the official JOFRA insert table for this well. Shipping and tax are confirmed when we review your order.
Ordering information
31 ordering models available.
| Model | Description | List Price | |
|---|---|---|---|
| CTC155:acc:CR | Solid Protective Carrying Case & Support rod set | $1,178.00 | |
| CTC155:acc:CX | Solid Protective Carrying Case | $763.00 | |
| CTC155:acc:SR | Support Rod Set | $449.00 | |
| CTC155:acc:XX | No accessories (standard delivery) | Request a quote | |
| CTC155:base:CTC155 | -25°C to 155°C with Standard Accessories | Request a quote | |
| CTC155:cable:A | European, 230V | Request a quote | |
| CTC155:cable:B | USA / CANADA, 115V | Request a quote | |
| CTC155:cable:C | UK, 240V | Request a quote | |
| CTC155:cable:D | South Africa, 220V | Request a quote | |
| CTC155:cable:E | Italy, 220V | Request a quote | |
| CTC155:cable:F | Australia, 240V | Request a quote | |
| CTC155:cable:G | Denmark, 230V | Request a quote | |
| CTC155:cable:H | Switzerland, 230V | Request a quote | |
| CTC155:cable:I | Israel, 230V | Request a quote | |
| CTC155:cert:F | Traceable Certificate to International Standards (Standard delivery) | Request a quote | |
| CTC155:cert:H | Accredited Certificate - ISO17025 | $674.00 | |
| CTC155:cert:HS | System Calibration - Accredited Certificate - ISO17025 (Only with STS) | $1,079.00 | |
| CTC155:insert:MXX | 1 x Multi Hole Insert (Please see Insert Selection for correct code) | $259.00 | |
| CTC155:insert:NON | Without Insert (Standard delivery) | Request a quote | |
| CTC155:insert:SIM | Complete Set of Imperial Inserts - Inch | $990.00 | |
| CTC155:insert:SMM | Complete Set of Metric Inserts - MM | $1,207.00 | |
| CTC155:insert:UNX | 1 x Undrilled Insert (Please see Insert Selection for correct code) | $85.00 | |
| CTC155:insert:XXX | 1 x Single Hole Insert (Please see Insert Selection for correct code) | $176.00 | |
| CTC155:opt:60F174 | Cleaning Brushes - 6 mm - Package of 3 pcs | $214.00 | |
| CTC155:power:115 | 115VAC, 50/60Hz | Request a quote | |
| CTC155:power:230 | 230VAC, 50/60Hz | Request a quote | |
| CTC155:ref:R1 | STS-102 Reference Sensor, Diameter 4mm - Length 30mm, STS102A030EH | $1,436.00 | |
| CTC155:ref:R21 | STS-120 Reference Sensor, Diameter 4mm - Length 140mm, STS120A915EH | $1,876.00 | |
| CTC155:ref:XX | Without Reference Sensor (standard delivery) | Request a quote | |
| CTC155:version:A | Basic Model, No Inputs | $6,793.00 | |
| CTC155:version:C | Reference Sensor Input | $8,892.00 |
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