Testo 922 Specifications

Data sheet

testo 922

Temperature measuring
instrument (2-channel)

testo 922 – For fast (differential)
temperature measurement

Ideally suited for applications in the HVAC field

2-channel temperature measuring instrument with optional

wireless probes

Display of differential temperature

TopSafe, the indestructible protective cover, protects from

dirt and impact

Continuous display of min./max. values

Hold-button for freezing measurement values

Cyclic printing of measurement values, e.g. once per minute

testo 922 is a temperature measuring instrument which

is especially suited to applications in the HVAC field. The

measuring instrument records the temperature values of

two connected thermocouple probes, and shows these

simultaneously together with the differential temperature in

the display. Measurement data transfer by radio additionally

allows the measurement value from a further temperature

probe to be displayed wirelessly.

With the TopSafe, and the probe plugged in, the measuring

instrument has protection class IP65.

°C

The instrument continuously displays the minimum and

maximum values. The measurement values shown in the

display (current measurement value, fixed measurement

value or the minimum/maximum value) can be printed out

on site using the Testo report printer (optional). In addiition

to this, the measurement values can be cyclically printed –

the intervals can be individually set.

www.testo.com

testo 922

Technical data

Sensor type Type K (NiCr-Ni)

testo 922

testo 922, 2 channel temperature
measuring instrument T/C Type K,
connection of an optional radio probe, with
battery and calibration protocol

Part no. 0560 9221

Differential temperature set
testo 922

testo 922, 2 channel temperature measuring instrument T/C Type K,
2 x Velcro probes for temperature measurement on pipes with
max. Ø 120 mm, Handy bag for measuring instrument and probes,
with battery and calibration protocol

Part no. 0563 9222

Measuring range

Accuracy
±1 digit

Resolution

General technical data

Operating temperature -20 to +50 °C

Storage temperature -40 to +70 °C

Housing material ABS

Battery type 9V block battery, 6F22

Battery life 200 h (connected probe, backlight off)

Dimensions 182 x 64 x 40 mm

Weight 171 g

-50 to +1000 °C

±(0.5 °C +0.3% of m.v.) (-40 to +900 °C)
±(0.7 °C +0.5% of m.v.) (remaining range)

0.1 °C (-50 to +199.9 °C)
1 °C (remaining range)

45 h (radio mode, backlight off)
68 h (connected probe, backlight always on)
33 h (radio mode, backlight always on)

Optional protective case TopSafe Wireless measurement with radio

probes

Simultaneous recording of
temperature by two connected
probes and display of differential
temperature

2 probe conneections

testo 922

Accessories

Radio module for upgrading measuring instrument with radio option

Radio module for measuring instrument, 869.85 MHz, approval for the countries: DE, FR, UK, BE, NL, ES, IT, SE, AT,
DK, FI, HU, CZ, PL, GR, CH, PT, SI, MT, CY, SK, LU, EE, LT, IE, LV, NO

Printer and Accessories

Part no.Accessories for measuring instrument

0515 00259V rech. battery for instrument, instead of battery

0554 0188

0554 0190Radio module for measuring instrument, 915.00 MHz FSK, approval for USA, CA, CL

0554 0549Testo fast printer IrDA with wireless infrared interface; 1 roll thermal paper; 4 AA batteries

measurement data documentation legible for up to 10 years

Transport and Protection

TopSafe, protects from impact and dirt (incl. 2 attachment magnets)

Service case for measuring instrument, probe and accessories, dimensions 454 x 316 x 111 mm

Service case for measuring instrument and probe, dimensions 454 x 316 x 111 mm

Case for measuring instrument and probes

Other features

Calibration Certificates

for air/immersion probes, calibration points -18°C; 0°C; +60°C

meas. instr. with air/immersion probe; cal. points 0°C; +150°C; +300°C

meas. instr. with air/immersion probe; calibration points 0°C; +300°C; +600°C

meas. instr. with surface probe; calibration points +60°C; +120°C; +180°C

meas. instr. with air/immersion probe; calibration points -20 °C; 0 °C; +60 °C

contact surface temperature probes; calibration points +100°C; +200°C; +300°C

0554 0568Spare thermal paper for printer (6 rolls), permanent ink

0516 0222

0516 1200

0516 1201

0516 0191

0409 1092Handle for attachable measurement tips, applicable for all Testo probes with miniature thermocouple plugs

0554 0592Extension cable, 5m, for thermocouple probe Type K

0554 0004Silicone heat paste (14g), Tmax = +260°C, improves heat transfer in surface probes

0520 0001ISO calibration certificate/temperature

0520 0021ISO calibration certificate/temperature (Applies only to immersion/penetration probe 0602 2693)

0520 0031ISO calibration certificate/temperature

0520 0071ISO calibration certificate/temperature

0520 0211DAkkS calibration certificate/temperature

0520 0271DAkkS calibration certificate/temperature

testo 922

Radio probes

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

Radio handle for plug-in probe heads, incl. T/C adapter, approval for the countries: DE, FR, UK, BE, NL, ES, IT, SE, AT,
DK, FI, HU, CZ, PL, GR, CH, PT, SI, MT, CY, SK, LU, EE, LT, IE, LV, NO; Radio freq. 869.85 MHz FSK

T/C probe head for air/immersion/penetration measurement (T/C Type K)

Radio handle for plug-in probe heads, incl. T/C adapter, approval for USA, CA, CL; Radio freq. 915.00 MHz FSK

T/C probe head for air/immersion/penetration measurement (T/C Type K)

Dimensions
Probe shaft/probe shaft tip

100 mm

Ø 5 mm

30 mm

Ø 3,4 mm

Measuring
range

-50 to +350 °C
Short-term to
+500 °C

Accuracy

Radio handle:
±(0.5 °C +0.3% of m.v.) (-40 to +500 °C)
±(0.7 °C +0.5% of m.v.) (remaining range)
T/C probe head: Class 2

Resolution

0.1 °C (-50 to
+199.9 °C)

1.0 °C (remaining
range)

t99

(in

t

99

water)
10 s

Radio handles and probe head for surface measurement

Radio handle for plug-in probe heads, incl. T/C adapter, approval for the countries: DE, FR, UK, BE, NL, ES, IT, SE, AT,
DK, FI, HU, CZ, PL, GR, CH, PT, SI, MT, CY, SK, LU, EE, LT, IE, LV, NO; Radio freq. 869.85 MHz FSK

T/C probe head for surface measurement (T/C Type K)

Radio handle for plug-in probe heads, incl. T/C adapter, approval for USA, CA, CL; Radio freq. 915.00 MHz FSK

T/C probe head for surface measurement (T/C Type K)

Dimensions
Probe shaft/probe shaft tip

120 mm

Ø 5 mm

40 mm

Ø 12 mm

Measuring
range

-50 to +350 °C
Short-term to
+500 °C

Accuracy

Radio handle:
±(0.5 °C +0.3% of m.v.) (-40 to +500 °C)
±(0.7 °C +0.5% of m.v.) (remaining range)
T/C probe head: Class 2

Resolution

0.1 °C (-50 to
+199.9 °C)

1.0 °C (remaining
range)

t

99

5 s

Part no.

0554 0189

0602 0293

0554 0191

0602 0293

Part no.

0554 0189

0602 0394

0554 0191

0602 0394

Radio handles for attachable T/C probes

Radio handle for plug-in probe heads, incl. T/C adapter, approval for the countries: DE, FR, UK, BE, NL, ES, IT, SE, AT,
DK, FI, HU, CZ, PL, GR, CH, PT, SI, MT, CY, SK, LU, EE, LT, IE, LV, NO ; Radio freq. 869.85 MHz FSK

Radio handle for plug-in probe heads, incl. T/C adapter, approval for USA, CA, CL; Radio freq. 915.00 MHz FSK

Illustration

Measuring

Accuracy

Resolution

range

-50 to +1000 °C

±(0.7 °C +0.3% of m.v.) (-40 to +900 °C)
±(0.9 °C +0.5% of m.v.) (remaining range)

0.1 °C (-50 to +199.9 °C)

1.0 °C (remaining range)

Technical data Radio probes

Radio immersion/penetration probe, NTC

Battery type 2 x 3V button cell (CR 2032)

Common Technical Data

Measuring rate

0.5 s or 10 s, adjustable on handle

Battery life 150 h (meas. rate 0.5 s)

2 months (meas. rate 10 s)

Radio handle

Battery type 2 x 3V button cell (CR 2032)

Battery life 215 h (meas. rate 0.5 s)

Radio coverage

Radio transmission

Operating temperature

Up to 20 m (without obstructions)

Unidirectional

-20 to +50 °C

Storage temperature -40 to +70 °C

6 months (meas. rate 10 s)

Part no.

0554 0189

0554 0191

testo 922

Probes

Probe type

Air probes

Robust air probe, T/C Type K,
Fixed cable 1.2 m

Immers./penetr. probes

Efficient and fast-action immersion
probe, waterproof, TC Type K,
Fixed cable 1.2 m

Fast-action, waterproof immersion/
penetration probe, TC Type K,
Fixed cable 1.2 m

Immersion tip, flexible, TC Type K

Immersion measurement tip,
flexible, for measurements in air/
exhaust gases (not suitable for
measurements in smelters), TC
Type K

Immersion tip, flexible, TC Type K

Dimensions
Probe shaft/probe shaft tip

115 mm

Ø 4 mm

Ø 1.5 mm

Ø 1.5 mm

Ø 3 mm

Ø 1.5 mm

300 mm

60 mm 14 mm

Ø 5 mm Ø 1.5 mm

500 mm

1000 mm

500 mm

Measuring
range

-60 to +400 °C

-60 to +1000 °C

-60 to +800 °C

-200 to
+1000 °C

-200 to
+1300 °C

-200 to +40 °C

Accuracy

1)

Class 2

1)

Class 1

1)

Class 1

1)

Class 1

1)

Class 1

1)

Class 3

t

99

200 s

2 s

3 s

5 s

4 s

5 s

Part no.

0602 1793

0602 0593

0602 2693

0602 5792

0602 5693

0602 5793

1)

Waterproof immersion/penetration
probe, TC Type K, Fixed cable 1.2
m

114 mm 50 mm

Ø 5 mm Ø 3.7 mm

-60 to +400 °C

Class 2

7 s

Surface probes

Fast-reaction paddle surface
probe, for measurements in
inaccessible places, e.g. narrow
apertures and slots, TC Type K,

145 mm

Ø 8 mm

40 mm

Fixed cable

Fast-action surface probe with
sprung thermocouple strip, also
for uneven surfaces, measurement
range short-term to +500°C, TC
Type K, Fixed cable 1.2 m

Waterproof surface probe with
widened measurement tip for flat
surfaces, T/C Type K, Fixed cable

1.2 m

The measuring instrument inside TopSafe is waterproof with this probe.

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).
A probe always corresponds to only one accuracy class.

115 mm

Ø 5 mm

115 mm

Ø 5 mm Ø 6 mm

Ø 12 mm

0 to +300 °C

Ø 7 mm

-60 to +300 °C

-60 to +400 °C

Class 2

Class 2

Class 2

1)

1)

1)

5 s

3 s

30 s

0602 1293

0602 0193

0602 0393

0602 1993

testo 922

Probes

Probe type

Surface probes

Fast-action surface probe with
sprung thermocouple strip,
bent, also for uneven surfaces,
measurement range short-term to
+500°C, TC Type K, Fixed cable

1.2 m

Efficient, waterproof surface probe
with small measurement head for
flat surfaces,
TC Type K, Fixed cable 1.2 m

Flat head surface probe with
telescopic handle max. 680 mm for
measurements at hard-to-access
points, TC Type K, Fixed cable 1.6
m (correspondingly shorter when
telescope extended)

Magnetic probe, adhesive force
approx. 20 N, with magnets, for
measurements on metal surfaces,
TC Type K, Fixed cable 1.6 m

Dimensions
Probe shaft/probe shaft tip

80 mm 50 mm

Ø 5 mm

150 mm

Ø 2.5 mm Ø 4 mm

985 ±5 mm 12 mm

35 mm

Ø 20 mm

Ø 12 mm

Ø 25 mm

Measuring
range

-60 to +300 °C

-60 to +1000 °C

-50 to +250 °C

-50 to +170 °C

Accuracy

1)

Class 2

1)

Class 1

1)

Class 2

1)

Class 2

t

99

3 s

20 s

3 s

150 s

Part no.

0602 0993

0602 0693

0602 2394

0602 4792

1)

Magnetic probe, adhesive force
approx. 10 N, with magnets, for
higher temp., for measurements on

75 mm

-50 to +400 °C

Ø 21 mm

Class 2

metal surfaces, TC Type K, Fixed
cable

1)

Pipe wrap probe with velcro strip;
for temperature measurement on
pipes with diameter up to max. 120

395 mm

-50 to +120 °C

20 mm

Class 1

90 s

mm; Tmax. +120 °C; TC Type K ,
Fixed cable

1)

Pipe wrap probe for pipe diameter

-60 to +130 °C

Class 2

5 s

5 to 65 mm, with exchangeable
measuring head. Meas. range
short-term up to +280 °C, TC Type
K, Fixed cable

1)

Spare meas. head for pipe wrap
probe, TC Type K

Clamp probe for measurements on

35 mm

-60 to +130 °C

15 mm

-50 to +100 °C

Class 2

Class 2

5 s

1)

5 s

pipes, pipe diameter 15 to 25 mm
(max. 1“), meas. range short-term
up to +130°C, TC Type K, Fixed
cable

The measuring instrument inside TopSafe is waterproof with this probe.

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).
A probe always corresponds to only one accuracy class.

0602 4892

0628 0020

0602 4592

0602 0092

0602 4692

testo 922

Probes

Probe type

Food probes

Waterproof food probe made of
stainless steel (IP65), TC Type K,
Fixed cable

Waterproof robust immersion/
penetration probe with metal
protection hose Tmax +230°C, e.g.
for monitoring temp. in cooking oil,
T/C Type K, Fixed cable

Thermocouples

Thermocouple with TC adapter,
flexible, 800 mm long, fibre glass,
TC Type K

Thermocouple with TC adapter,
flexible, length 1500 mm ,
fibreglass, TC Type K

Thermocouple with TC adapter,
flexible, 1500 mm long, PTFE, TC
Type K

Dimensions
Probe shaft/probe shaft tip

125 mm 30 mm

Ø 4 mm Ø 3.2 mm

240 mm

Ø 4 mm

800 mm

Ø 1.5 mm

1500 mm

Ø 1.5 mm

1500 mm

Ø 1.5 mm

Measuring
range

-60 to +400 °C

-50 to +230 °C

-50 to +400 °C

-50 to +400 °C

-50 to +250 °C

Accuracy

1)

Class 2

1)

Class 1

1)

Class 2

1)

Class 2

1)

Class 2

t

99

7 s

15 s

5 s

5 s

5 s

Part no.

0602 2292

0628 1292

0602 0644

0602 0645

0602 0646

The measuring instrument inside TopSafe is waterproof with this probe.

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).
A probe always corresponds to only one accuracy class.

Information on surface measurement:

• The response times t

stated are measured on ground steel or aluminium plates at +60 °C.

99

• The stated accuracies are sensor accuracies.

• The accuracy in your application is dependent on the surface structure (roughness), material of the measurement

object (heat capacity and heat transfer), as wel as sensor accuracy. Testo creates a corresponding calibration

certificate for the deviations of your measurement system in your application. For this purpose, Testo uses a surface

test bench developed in cooperation with the PTB (Physikalisch Technische Bundesanstalt).

testo 922

0981 9294/msp/I/05.2018

www.testo.com

Subject to change without notice.