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3. Product description
8
3.1 Power supply
3. Product description
3.1 Power supply
Power is supplied to the testo 521/526 optionally via:
- 9 V monobloc battery, type: IEC 6LR61 (included)
- 9 V monobloc rechargeable battery, type:
- Mains connection and battery charging via mains
3.2 Controls
Keyboard
Connections
NiMH IEC 6F22 (0515 0025)
unit 0554 0088, see also page 38 6.6.3 Battery
type)
Print
Select reading 1 (top line), select menu item
Switch on / off
Save data
Open menu level, confirm selection, execute function
Zero pressure probes
Cancel process, menu level back,
Select reading 2 (bottom line), select menu item
Hold reading value, display maximum / mini-
mum / mean value
Socket "1" and
Thermocouple probe (type K), NTC probe, pressu-
re probe, power supply cable
"RS232": PC connection
12 V DC mains unit (0554 0088)
Pressure nipple p+ with quick-release connection
(M8 x 0.5) (only for testo 526)
Pressure nipple p- with quick-release connection
(M8 x 0.5) (only for testo 526)
socket "2":
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