Ecom Instruments Ex-Pt 720 - Manual (Page 4)

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Operating life: approx. 100h
Dimensions: 190 x 57 x 42 mm
Weight: approx. 200g (with batteries)
Case material: ABS
(slight discolouration due to additives)
IP-protective rating: IP 54
EC-designation:
0102
Display: LCD, digit height 14mm
Measuring device: Pt 100-Sensor, 4-wire-technique
Measuring range:
-50°C to +400°C
Accuracy: -50°C to +199,9°C: ±0,2°C, ±1 digit
+200°C to +400°C:
±0,2% from measured
value, ±1 digit
Resolution: -50°C to +199,9°C: 0,1°C
+200°C to +400°C:
1°C
System accuracy: -50°C to +99,9°C: ±0,6°C, ±1 digit
(with immersion/
insertion sensor)
+100°C to +400°C: ±0,5% from measured
value, ±1 digit
Sensor connection
I/O button
reverse side:
safety screw
HOLD-button
Safety loop for
use on Zone 0
7. Operating instructions
7.1 Commissioning
- carefully read operating instructions.
- open back of unit with key.
- insert battery correctly (observe polarity).
- insert battery safety cover.
- close unit with safety screw.
7.2 Switching-on and measuring
7.2.1 Switching-on
Insert sensor into measuring socket (take note of plug coding).
Switch unit on with >I/O pushbutton<.
After switching on, a short display and function test will take
place. The measuring instrument is now ready for use.
7.2.2 Hold-Function
The measured values can be retained in the display with the
>Hold< pushbutton
7.2.3 Auto-Off-Function
The Auto-Off-Function switches the unit off after 10 minutes ope-
rating time thus avoiding unintentional discharge of the battery.
7.2.4 Changing measuring range
The display can be switched between °C and °F.
While switching the unit on with the >I/O pushbutton< press
>HOLD-pushbutton< and hold it.
After the self test is finished, the currently selected max. measu-
ring value will blink.
° C