Datasheet

39
The differential thermometer
records temperature values from
2 connected thermocouple
probes and displays them
simultaneously. The reading from
an additional temperature probe
can also be wirelessly displayed
in the testo 922 measuring
instrument; i.e. measurement
data is transmitted by radio.
Differential temperature can be
called up immediately. Current
measurement data such as
max/min data can be printed on
the Testo fast printer on site. It is
possible to print measurement
data once a minute, for example,
on the printer if cyclical printing is
in operation.
• 2 channel measuring instrument
with optional radio probe
• Displays differential temperature
• Cyclical printing of readings,
e.g. once a minute
• 1 channel measuring instrument
with optional radio probe
• An audible alarm sounds when
limit values are exceeded
testo 922
The one channel temperature
measuring instrument for
connection to reliable, fast-action
thermocouple probes. An
additional temperature probe can
be displayed in testo 925; data is
transmitted by radio, i.e.
wirelessly. An audible alarm
sounds if limit values are
exceeded. Current measurement
data as well as max/min data can
be printed on site on the Testo
fast printer.
testo 925
Part no. 0560 9221
testo 922, 2 channel temperature
measuring instrument T/C Type K,
connection of an optional radio probe,
with battery and calibration protocol
testo 922
Part no. 0560 9250
testo 925, 1 channel temperature
measuring instrument T/C Type K,
audible alarm, connection of an
optional radio probe, with battery and
calibration protocol
testo 925
Printer and Accessories
Testo fast printer with wireless infrared interface, 1 roll thermal
paper and 4 AA batteries
0554 0549
Spare thermal paper for printer (6 rolls), permanent ink,
measurement data documentation legible for up to 10 years
0554 0568
Spare thermal paper for printer (6 rolls)
0554 0569
External fast charger for 1-4 AA rech. batteries, incl. 4 Ni-MH
rech. batteries with individual cell charging and charge control
display, incl. impulse trickle charging, integrated discharge
function, with built-in international mains plug, 100-240 V, 300
mA, 50/60 Hz
0554 0610
TopSafe, protects from impact and dirt (testo 925)
0516 0221
TopSafe, protects from impact and dirt (testo 922)
0516 0222
Recharger for 9V rechargeable battery, for external
recharging of 0515 0025 battery
0554 0025
9V rech. battery for instrument, instead of battery
0515 0025
Handle for attachable measurement tips
0409 1092
Extension cable, 5m, for thermocouple probe Type K
0554 0592
Silicone heat paste (14g), Tmax = +260°C, improves heat
transfer in surface probes
0554 0004
Transport case for measuring instrument, 3 probes and
accessories (430 x 310 x 85 mm)
0516 0200
Case for measuring instrument and probes
0516 0210
Transport case for meas. instr. and probes (405 x 170 x 85 mm)
0516 0201
ISO calibration certificate/temperature, for air/immersion
probes, calibration points -18°C; 0°C; +60°C
0520 0001
0520 0211
Part no.
Single channel thermometer Differential thermometer
Additional accessories Part no.
Transport and Protection Part no.
Calibration Certificates Part no.
Advantages testo 925
• On site printout on Testo fast printer
• Continuous display of max/min values
• Hold button to freeze reading
• TopSafe, indestructible case, protects from dirt and impact (option)
• Display light
Common advantages testo 925, testo 922
Advantages testo 922
Technical data testo 922 / testo 925
Accuracy
±1 digit
±(0.5 °C +0.3% of mv) (-40 to +900 °C)
±(0.7 °C +0.5% of mv) (remaining range)
Probe type Type K (NiCr-Ni)
Meas. range -50 to +1000 °C
Resolution 0.1 °C (-50 to +199.9 °C)
1 °C (remaining range)
Oper. temp. -20 to +50 °C
Storage temp. -40 to +70 °C
Battery type 9V block battery, 6F22
Battery life 200 h (connected probe, backlight off)
45 h (radio mode, backlight off)
68 h (connected probe, backlight always on)
33 h (radio mode, backlight always on)
Dimensions 182 x 64 x 40 mm
Weight 171 g
Lithium battery button cell, CR2032 AA batteries for radio
handle
0515 0028
ISO calibration certificate/temperature, Meas. instr. with
air/immersion probe; cal. points 0°C; +150°C; +300°C
(Applies only to immersion/penetration probe 0602 2693)
0520 0021
DAkkS calibration certificate/temperature, meas. instr. with
air/immersion probe; calibration points -20°C; 0°C; +60°C
(Successor organization of the DKD)