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Reference Temperature Calibrator Index |
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Ametek - Jofra RTC-157 Series
Reference Temperature Calibrator |
- Patent pending DLC, Dynamic Load Compensation system, for perfect temperature uniformity in the insert
- Unique intelligent sensors for plug’n’play connection
- USB connector for communication
- Easy-to-read color VGA display with perfect overview of the actual status
- Intuitive, fast and user-friendly navigation
- Lightweight and easy to carry around
- New functional carrying case design
- New multi-hole insert kits covering all the most used sensor sizes
- High profile design and the well-known long lasting JOFRA quality.
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Ametek RTC-157 Shown
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The JOFRA RTC-157 provides precision
temperature calibration of sensors, whatever the type or format. This is
accomplished through an innovative active dual-zone heating technology.
The JOFRA RTC157 features our well-known active dual-zone heating
technology. Each heating zone is independently controlled for precision
temperature calibration. The homogeneity in the lower part is close to
that of a laboratory liquid bath. The lower zone ensures optimum heat
dissipation throughout the entire calibration zone. The upper zone
compensates for heat loss from the sensor-under-test and from the open
top. This design also eliminates the need for extra insulation of
sensors-under-test and makes it possible to calibrate liquid-filled and
other mechanical sensors.
To bring well documented active dual-zone
technology to an even higher level, the patent pending new DLC system
was developed. This newly developed unique feature makes it possible
to perform top calibration specifications without being affected by the
actual load e.g. many sensors or very big sensors. A new DLC sensor,
Dynamic Load Compensation sensor, has been specially developed for this
purpose. The RTC calibrator features the active dual zone temperature
control which improves the homogeneity in the well by adjusting the
temperature in the top of the well to the same temperature as in the
bottom. The dual zone keeps this difference at a minimum.
Another new RTC feature is the USB connection that facilitates easy
communication with JOFRACAL. The USB connection also supports easy
download of future firmware upgrades. The new USB connection provides
fast and easy access to all laptops without the need of RS-232 to USB
converters.
Two special multi-hole insert kits have been
developed to comply with calibration of almost any sensor diameter
with-out having to buy numerous inserts.
The RTC-157 calibrator
has an increased heating and cooling speed compared to all other
calibrators. Heating and cooling speed has been increased by up to 20%.
The implication is savings in both production downtime and general
calibration costs.
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| RTC-157 Specifications |
| Temperature range |
@ ambient temp. 0°C/32°F |
-57 to 155°C/-71 to 311°F |
| @ ambient temp. 23°C/73°F |
-45 to 155°C/-49 to 311°F |
| @ ambient temp. 40°C/104°F |
-31 to 155°C/24 to 311°F |
Accuracy (model B & C)
with external
STS ref. sensor |
±0.04°C/±0.07°F |
Accuracy with internal reference sensor
(A,B & C) |
±0.10°C/±0.18°F |
| Stability |
±0.005°C/±0.009°F |
Radial homogeneity
(difference
between holes) |
0.01°C/0.02°F |
| Resolution (user-selectable) |
1° or 0.1° or 0.01° or 0.001˚ |
| Heating time |
-45 to 23°C/-49 to 73°F |
7 minutes |
| 23 to 155°C/73 to 311°F |
8 minutes |
| Cooling time |
155 to 100°C/311 to 212°F |
5 minutes |
| 100 to 23°C/212 to 73°F |
10 minutes |
| 23 to -30°C/73 to -22°F |
17 minutes |
| -30 to -45°C/-22 to -49°F |
25 minutes |
| Time to stability (approx.) |
10 minutes |
| Immersion depth |
160 mm/6.3 in |
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| Ordering Guide |
| Model |
Product Description |
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| RTC-157 Series, -45˚C to 155˚C (-49˚F to 311˚F) |
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| Code |
Model Version |
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| Basic model, without input |
| Full model, incl. DLC sensor input, Reference sensor input, Sensor-under-test input |
| Middle model, incl. DLC sensor input, Reference sensor input |
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| Code |
Power supply (US deliveries 60 Hz
only) |
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| Code |
Mains Power Cable Type |
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| European, 230V |
| USA/CANADA, 115V |
| UK, 240V |
| South Africa, 220V |
| Italy, 220V |
| Australia, 240V |
| Denmark, 230V |
| Switzerland, 220V |
| Israel, 230V |
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| Code |
Insert Type and Size |
| NON |
| UNX |
| XXX |
| MXX |
| SIX |
| SMX |
| SIM |
| SMM |
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| No insert selected (standard) |
| 1 x Undrilled Insert (Please see Insert selection for code) |
| 1 x Single hole insert (Please see Insert selection for code) |
| 1 x Multi hole insert (Please see Insert selection for code) |
| Set of 3 Imperial multi hole inserts. Covering holes from 1/8” to 1/2” |
| Set of 4 Metric multi hole inserts. Covering holes from 3mm to 13mm |
| Set of 9 Imperial inserts. Covering holes from 1/8” to 5/8” |
| Set of 14 Metric inserts. Covering holes from 3mm to 16mm |
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| Code |
Dynamic Load Compensation (B & C
models only, optional) |
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| Code |
STS Reference sensor (B & C models
only, optional) |
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| STS-102 Ref. sensor. Dia. 4mm. Length 30mm (STS102A030EH) |
| STS-200 Ref. sensor. Dia. 4mm. Length 161mm (STS200A915EH) |
| STS-200 Ref. sensor. Dia. 1/4”. Length 161mm (STS200B915EH) |
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| Code |
Calibration Certificate |
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| Traceable Calibration Certificate. (standard) |
| Accredited Calibration Certificate |
| Full EURAMET Calibration Certificate |
| Traceable System Calibration Certificate (B & C model only) |
| Accredited System Calibration Certificate (B & C model only) |
| Full EURAMET System Calibration Certificate (B & C model only) |
| Full EURAMET System Calibration Certificate with DLC (B & C model only) |
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| Code |
Accessories |
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| Solid Protective Carrying case with trolley |
| Support rod set |
| Solid Protective Carrying case with trolley & Support rod set |
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| Sample Order Number |
| RTC156B230ASMDLCR2EACT - JOFRA RTC-156 B with 230VAC, EU power cord, set of metric inserts, DLC, STS-200 ref. sensor, full EA temp. calibration certificate, and carrying case with trolley. |
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Ordering Information |
| Model |
Description |
Buy Online |
Price |
| RTC157 |
Ametek RTC-157 Reference Temperature Calibrator,
-45˚C to 155˚C (-49˚F to 311˚F) |
Please Call |
| Optional Accessories |
| Model |
Description |
Buy Online |
Price |
| 122771 |
Ametek 122771 Mini-Jack Connector/Stable Relay Output |
 |
Sale $28.38
(Reg. $29.87) |
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