PRO131/135, 2-Channel Precision Second Thermometer, Graphic Display
PRO 131.2 and PRO 135.2 are professional two-channel handheld measuring devices for thermocouples with a variety of functions, high robustness and ease of use for safe and reliable use.
The PRO 135 variant also has the option of data recording (please select when ordering!).
Characteristics:
- 2 measuring channels with display of the differential temperature
- For 8 different thermocouple types
- 2 variants: without and with data logger function
- Excellent measurement accuracy
- Freely scalable analog output or serial interface
- Zero point/slope input
- Min/max value memory, hold function
- Including test report
- Delivery without probe and without other accessories
Display:
The large, multilingual dot matrix/plain text LCD display offers ergonomic visibility day and night thanks to the backlight.
It displays either measured values, statistical data or variable measurement curves as a diagram.
The HOLD function freezes the display values, while the REL function displays measured values relative to a comparison value.
The units of measurement °C, °F and K are available.
If two sensors are connected, the device calculates the difference between the measured values of the two channels and displays them.
The display of the internal device temperature (reference junction) can also be switched on optionally.
Data logger (PRO 135.2 only):
High storage capacity: up to 1 million data records, file system based.
The data is stored in CSV files that can be easily viewed when the device is connected to a PC via USB.
The device is recognized by the PC as a mass storage device, so that data can be retrieved and viewed without additional software.
Automatic logging with adjustable interval.
Real-time clock integrated: the date and time of each recorded sensor is recorded.
Alarm:
Configurable alarm thresholds and optional hysteresis can be set.
LCD display and activation of the buzzer when the thresholds are exceeded.
Probes:
Any type K, J, T, N, R, S, B and E thermocouple probe can be connected.
A wide range of probes is available from us.
Configurable surface correction factors can be set for use with Senseca contact probes to achieve the best measurement accuracy.
PC connection:
Via the USB-C port, to view and download the files stored in the device (PRO 135 only) or to connect the ProXware application software.
Statistics:
Detection of MIN, AVG (average) and MAX for each variable displayed.
The user can reset the statistical information to start new statistical calculations.
Technical data:
Measurement: Thermocouples, type K, J, T, N, R, S, B or E
Channels: 2
Measurement inputs: 2 miniature TC connectors with flat plugs
Max. Cable length: <30m
Measuring ranges, depending on the connected thermocouple type:
K: -220.0 to +1372.0°C / -364.0 to +2501.6°F
J: -200.0 to +1100.0°C / -328.0 to +2012.0°F
N: -200.0 to +1300.0°C / -328.0 to +2372.0°F
S: -50.0 to +1750.0°C / -58.0 to +3182.0°F
T: -200.0 to +400.0°C / -328.0 to +752.0°F
E: -60.0 to +850.0°C / -76.0 to +1562.0°F
Resolution: 0.1°C / 0.1°F or 1°C / 1°F, depending on the thermocouple type (see measuring ranges)
Accuracy typ.: ±(0.2°C + 0.2% of measured value) ± 1 digit (J, K, N, T, E)
±(1°C + 0.4% of measured value) ± 1 digit (S, B, R)
Long-term drift: ±0.1°C/year
Cold junction accuracy: ±0.3°C
Measuring rate: 4 measurements/s
Display: 140 x 160 dot matrix LCD with backlight / visible area 42 x 50mm, large display of measured values, statistical information (min/avg/max), live chart
Display units: °C, °F, K
Standard functions: Acoustic/optical alarm, automatic shutdown freely configurable by the user (automatically deactivated when external power supply is connected)
Data logger (only with PRO 135):
Storage capacity: Up to 1 million Data records, file system based
Each data record contains date/time stamp and measurement.
The data is saved in CSV files.
Type of recording: Automatic with manual start/stop
Recording interval: 1, 2, 5, 10, 15, 30s / 1, 2, 5, 10, 15, 30min / 1h
Clock: User-adjustable date and RTC function (max. deviation 1 min/month at 25°C)
Read data logger via USB
User interface: Multilingual (DE, EN, IT, FR, ES)
PC connection: USB C (cable included), mass storage device
Operating conditions: -5 to +50°C; 0 to 85% RH (non-condensing)
Storage temperature: -25 to +65°C (without batteries)
Power supply: 4 x AA battery (included)
External 5VDC via USB C (power supply or PC USB port)
Current drain: 20mA typ.
Automatic switch-off: Yes, user-configurable
Automatically deactivated when external power supply is connected
Battery life: >150h typical continuous operation
Housing material: Shock and impact resistant, ABS, TPE (side protection), polyester (front panel),
Protection class: IP67 (except sensor connection), IK 04
Dimensions: 170 x 78 x 38mm³
Weight: 320g including batteries
Extras: Foldable stand and magnet for flexible use
Scope of delivery:
Device in box, test report, quick start, without temperature sensor
