testo 735-1 - Temperature measuring instrument (3-channel)

Order-Nr.  0560 7351

  • With optional probes that measure core temperature, surface temperature and air temperature

  • Up to three probes can be attached and three additional temperature probes can also be connected to the temperature measuring instrument by radio

  • Accurate measurement up to 0.05 °C with Pt100 temperature probe (optional)

  • Display of min., max. and mean values and calculation of the differential temperature (delta T)

If you need a measuring instrument for accurate temperature measurement or you would like to measure the temperature in several locations simultaneously, the testo 735-1 is the ideal equipment for you. The wide selection of optional probes enables flexible use of the temperature measuring instrument, for example to calibrate stationary temperature probes, in the electronics and food industries or in laboratories.

This meter uses a sensor to start up.

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Product Description

The testo 735-1 temperature measuring instrument can deal with almost all measuring tasks. That is because the comprehensive selection of optional probes enables reliable temperature measurement in a variety of areas. This means you can for instance use the measuring instrument in chemical laboratories for temperature measurement in aggressive media, for measuring temperature distribution in air conditioning cabinets and refrigerators, for calibrating stationary temperature probes or in the food industry for measuring core temperature.

Measure surface, air and core temperature – in up to 6 locations at the same time

Whether your work involves core temperatures, surface temperatures or air temperatures – choose the temperature probes that are appropriate for you from our large selection of probes and measure the temperature in up to six locations at the same time with the testo 735-1.

The temperature measuring instrument has one probe input for attaching high-precision Pt100 probes and two inputs for attaching fast thermocouple probes of the K, T, J and S types.

Take advantage of wireless measurement data transfer by radio as well. The optional radio module means you can receive readings from up to three further optional radio temperature probes on the testo 735-1. The radio probes send the temperature values to the temperature measuring instrument over a distance of up to 20 meters where there are no obstructions. Wireless measurement enables you to avoid damage to cables or hindrances to handling.

Accurate temperature measurement with Pt100 temperature probe

Pt100 technology enables you to achieve very accurate temperature measurements with the testo 735-1. The high-precision Pt100 immersion/penetration probe (optional) thus achieves system accuracy of up to 0.05 °C with a resolution of 0.001 °C. The temperature measuring instrument is therefore ideally suited to use as a working standard for calibration of stationary temperature probes.

The testo 735-1 temperature measuring instrument offers great features and standard-compliant work

The testo 735-1 does not just display the temperatures currently being measured. Min./max. and mean values are also shown on the instrument display. When two temperature probes are attached, the temperature measuring instrument calculates the differential temperature and displays this as delta T. In addition, an acoustic alarm sounds when limit values are undershot or exceeded. You are free to define the limit values.

The display illumination also enables easy reading of measuring values even in dark surroundings. In addition, the testo 735-1 temperature measuring instrument is waterproof according to protection class IP 65, has been tested in accordance with EN 13485, is HACCP-compliant and has international HACCP certification.

Documentation of measurement data on site via the testo fast printer

If you need evidence of the measured temperature values, we offer our optional testo fast printer as an accessory for the temperature measuring instrument. You can use this to print out the current temperature values or the min./max. values on site.

Use the practical cyclical printing function on the testo 735-1 as well. It not only enables the printout of individual readings, but also of whole series of measurements on the testo fast printer at freely adjustable intervals (for example once a minute).

We recommend you use the testo 735-2 version for saving, documenting and archiving measurement data. This temperature measuring instrument also has a reading memory and PC software.

 

Delivery Scope

The testo 735-1 temperature measuring instrument (3-channel) with an acoustic alarm, including calibration protocol and batteries.

Caution: The instrument can only be commissioned with a probe. These are available separately.

Temperature - Pt100

Measuring range

-200 to +800 °C

Accuracy

±0.2 °C (-100 to +199.9 °C)

±0.2 % of mv (Remaining Range)

Resolution

0.05 °C

Temperature - TC Type K (NiCr-Ni)

Measuring range

-200 to +1370 °C

Accuracy

±0.3 °C (-60 to +60 °C)

±(0.2 °C + 0.3 % of mv) (Remaining Range)

Resolution

0.1 °C

Temperature - TC Type T (Cu-CuNi)

Measuring range

-200 to +400 °C

Accuracy

±0.3 °C (-60 to +60 °C)

±(0.2 °C + 0.3 % of mv) (Remaining Range)

Resolution

0.1 °C

Temperature - TC Type J (Fe-CuNi)

Measuring range

-200 to +1000 °C

Accuracy

±0.3 °C (-60 to +60 °C)

±(0.2 °C + 0.3 % of mv) (Remaining Range)

Resolution

0.1 °C

Temperature - TC Type S (Pt10Rh-Pt)

Measuring range

0 to +1760 °C

Accuracy

±1 °C (0 to +1760 °C)

Resolution

1 °C

General technical data

Dimensions

220 x 74 x 46 mm

Operating temperature

-20 to +50 °C

Housing

ABS / TPE / Metal

Protection class

IP65

Standards

EN 13485

Battery type

Alkali manganese, mignon, type AA

Storage temperature

-30 to +70 °C

Weight

428 g

Air probes

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +400 °C

Accuracy

Class 2 ¹⁾

Reaction time

200 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

ZAR 1,034.55
Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +350 °C

Accuracy

±0.2 °C (-20 to +70 °C)

Class 1 (t1) ¹⁾

Reaction time

25 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +350 °C (Type T).

Efficient, robust air probe, Pt100

Order Number: 0609 1773

ZAR 1,415.70
Temperature - Pt100

Measuring range

-50 to +400 °C

Accuracy

Class A (-50 to +300 °C)

Class B (Remaining Range) ¹⁾  

Reaction time

70 s

1) According to standard 60751, the accuracies of Class A and B refer to -200 to +600 °C (Pt100)

Food probes

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +400 °C

Accuracy

Class 2 ²⁾

Reaction time

7 s

2) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +350 °C

Accuracy

±0.2 °C (-20 to +70 °C)

Class 1 (Remaining Range) ¹⁾

Reaction time

7 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +350 °C (Type T).

Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +350 °C

Accuracy

±0.2 °C (-20 to +70 °C)

Class 1 (Remaining Range) ¹⁾

Reaction time

7 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +350 °C (Type T).

Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +350 °C

Accuracy

±0.2 °C (-20 to +70 °C)

Class 1 (Remaining Range) ¹⁾

Reaction time

6 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +350 °C (Type T).

ZAR 2,214.30
Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +350 °C

Accuracy

±0.2 °C (-20 to +70 °C)

Class 1 (Remaining Range) ¹⁾

Reaction time

8 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +350 °C (Type T).

Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +350 °C

Accuracy

±0.2 °C (-20 to +70 °C)

Class 1 (Remaining Range) ¹⁾

Reaction time

7 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +350 °C (Type T).

Temperature - Pt100

Measuring range

-50 to +400 °C

Accuracy

Class A (-50 to +300 °C)

Class B (Remaining Range) ¹⁾

Reaction time

10 s

1) According to standard 60751, the accuracies of Class A and B refer to -200 to +600 °C (Pt100)

Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +350 °C

Accuracy

±1.0 °C (-40 to +133 °C)

Class 2 Remaining Range

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 1 and Class 2 refers to -40 to +350 °C (Type T).

Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +250 °C

Accuracy

±0.2 °C (-20 to +70 °C)

Class 1 (Remaining Range) ¹⁾

Reaction time

2 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +350 °C (Type T).

Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +250 °C

Accuracy

±0.2 °C (-20 to +70 °C)

Class 1 (Remaining Range) ¹⁾

Reaction time

2 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +350 °C (Type T).

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +230 °C

Accuracy

Class 1 ²⁾

Reaction time

15 s

2) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Laboratory probes

Temperature - Pt100

Measuring range

-50 to +400 °C

Accuracy

Class A (-50 to +300 °C)

Class B (Remaining Range) ¹⁾

Reaction time

45 s

1) According to standard 60751, the accuracies of Class A and B refer to -200 to +600 °C (Pt100)

Radio handles with probe head for air and immersion/penetration meas.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +350 °C

Short-term to: +500 °C

Accuracy

±(0.5 °C + 0.3 % of mv) (-40 to +500 °C

±(0.7 °C + 0.5 % of mv) (Remaining Range)

Resolution

0.1 °C (-50 to +199.9 °C)

1.0 °C Remaining Range

Reaction time

(in water) 10 s

Radio handles with probe head for surface measurement

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +350 °C

Short-term to: +500 °C

Accuracy

Radio handle:

±(0.5 °C + 0.3 % of mv) (-40 to +500 °C)

±(0.7 °C + 0.5 % of mv) (Remaining Range)

T/C probe head: Class 2

Resolution

0.1 °C (-50 to +199.9 °C)

1.0 °C Remaining Range

Reaction time

5 s

Radio immersion/penetration probes

Temperature - NTC

Measuring range

-50 to +275 °C

Accuracy

±0.5 °C (-20 to +80 °C)

±0.8 °C (-50 to -20.1 °C)

±0.8 °C (+80.1 to +200 °C)

±1.5 °C (Remaining Range)

Resolution

0.1 °C

Reaction time

(in water) 12 s

Surface probes

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +130 °C

Accuracy

Class 2 ²⁾

Reaction time

5 s

2) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

0 to +300 °C

Accuracy

Class 2 *

Reaction time

5 s

* According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +300 °C

Accuracy

Class 2 ¹⁾

Reaction time

3 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +1000 °C

Accuracy

Class 1 ¹⁾

Reaction time

20 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K)

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +300 °C

hort-term to 500°C

Accuracy

Class 2 ¹⁾

Reaction time

3 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +400 °C

Accuracy

Class 2 ¹⁾

Reaction time

30 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +250 °C

Accuracy

Class 2 ¹⁾

Reaction time

3 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +130 °C

Accuracy

Class 2 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +100 °C , short-term up to +130 °C

Accuracy

Class 2 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +170 °C

Accuracy

Class 2 ¹⁾

Reaction time

150 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Magnetic probe (TC Type K)

Order Number: 0602 4892

ZAR 2,831.40
Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +400 °C

Accuracy

Class 2 ¹⁾

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type T (Cu-CuNi)

Measuring range

-50 to +350 °C

Accuracy

±0.2 °C (-20 to +70 °C)

Class 1 (Remaining Range) ¹⁾

Reaction time

30 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +350 °C (Type T).

Temperature - Pt100

Measuring range

-50 to +400 °C

Accuracy

Class B ¹⁾

Reaction time

40 s

1) According to standard 60751, the accuracies of Class A and B refer to -200 to +600 °C (Pt100)

ZAR 707.85
Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +120 °C

Accuracy

Class 1 ¹⁾

Reaction time

90 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K)

Thermocouples

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50.0 to +400.0 °C

Accuracy

Class 2 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +400 °C

Accuracy

Class 2 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +250 °C

Accuracy

Class 2 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

immersion/ penetration probes

ZAR 2,123.55
Temperature - TC Type K (NiCr-Ni)

Measuring range

-200 to +1000 °C

Accuracy

Class 1 ¹⁾

Reaction time

1 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +1000 °C

Accuracy

Class 1 ¹⁾

Reaction time

2 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +400 °C

Accuracy

Class 2 ¹⁾

Reaction time

7 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +800 °C

Accuracy

Class 1 ¹⁾

Reaction time

3 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Temperature - TC Type K (NiCr-Ni)

Measuring range

-200 to +1300 °C

Accuracy

Class 1 ¹⁾

Reaction time

4 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Immersion tip, flexible, TC Type K

Order Number: 0602 5792

ZAR 453.75
Temperature - TC Type K (NiCr-Ni)

Measuring range

-200 to +1000 °C

Accuracy

Class 1 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K)

Immersion tip, flexible, TC Type K

Order Number: 0602 5793

ZAR 580.80
Temperature - TC Type K (NiCr-Ni)

Measuring range

-200 to +40 °C

Class 3 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Temperature - Pt100

Measuring range

-50 to +400 °C

Accuracy

Class A (-50 to +300 °C)

Class B (Remaining Range) ¹⁾

Reaction time

12 s

1) According to standard 60751, the accuracies of Class A and B refer to -200 to +600 °C (Pt100)

Temperature - Pt100

Measuring range

-80 to +300 °C

Accuracy

±0.3 °C (-80 to -40 °C)

±(0.1 °C + 0.05 % of mv) (-40 to 0 °C)

±0.05 °C (0 to +100 °C)

±(0.05 °C + 0.05 % of mv) (100 to 300 °C)

Reaction time

60 s

Accessories for measuring instrument

Additional accessories

Handle for attachable measurement tips

Order Number: 0409 1092

ZAR 1,197.90
ZAR 199.65

Measurement of the heating of electronic components

Advantages of testo 735:

  • Large range of probes available (incl. surface probes in the most varied shapes; see probe tab)
  • Memory and analysis functions via a PC (testo 735-2)
  • Display, saving and printout of Delta T, min., max. and mean values
  • Can be used universally

Calibration of stationary temperature probes

Advantages of testo 735:

  • For extremely accurate measurements: a system accuracy of 0.05 °C is achieved with a resolution of 0.001 °C using the plug-in high-precision Pt100 immersion/penetration probe 0614 0235
  • Can be used universally
  • It is available in two versions: the testo 735-2 also offers memory and analysis functions via a PC

Measuring temperature in a chemical laboratory

Advantages of testo 735:

  • For extremely accurate measurements: a system accuracy of 0.05 °C is achieved with a resolution of 0.001 °C using the plug-in high-precision Pt100 immersion/penetration probe 0614 0235 .
  • Can be used universally
  • Available in two versions

Temperature measurement in the cosmetics industry

Advantages of testo 735:

  • For extremely accurate measurements: a system accuracy of 0.05 °C is achieved with a resolution of 0.001 °C using the plug-in high-precision Pt100 immersion/penetration probe 0614 0235
  • Can be used universally
  • It is available in two versions: the testo 735-2 also offers memory and analysis functions via a PC
  • IP 65 = to meet cleaning requirements in the pharmaceuticals industry

Temperature distribution in refrigerators and conditioning cabinets

Advantages of testo 735:

  • 3 probe connections for plug-in probes + up to 3 radio probes can be connected
    → Variety of probes are possible
  • It is available in two versions: the testo 735-2 also offers memory and analysis functions via a PC→ Online measurements are possible
  • Memory and analysis functions via a PC (testo 735-2); display, saving and printout of Delta T, min., max. and mean values

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