Simtronics MultiTox DG-TT7-S, Operating Manual

Page: 12 / 59

MultiTox : DGi-TT7-E/O & DG-TT7-S
Page 12 / 60 NOSP 16452-05 (08/2016)
2. TECHICAL FEATURES
GENERAL
Type Gas detector
DGi-TT7-E MultiTox (electrochemical for toxic components)
DGi-TT7-O MultiTox (electrochemical for measurement of oxygen)
DG-TT7-S MultiTox (semi-conductor for toxic components)
DGi-RT7 / DG-RT7 Network detector
Calibration* Factory set. A test is recommended every 3-4 months on
DGi -TT7-E and DGi-TT7 and every 6 months on DG-TT7-S.
OUTPUT SIGNALS
Loop 4-20mA signal Type active (source) maximum load impedance 700
Ω
E version - « 4-20mA » 4-20mA with one fault level
(Factory set) - 0% full scale 4 mA
- 100% full scale 20 mA
- 105% full scale 20.8 mA
- Fault or inhibition 2 mA
Version A- « 0-22mA » 4-20mA with several fault levels, for PLC and some recent
control units
- 0% full scale 4 mA
- 100% full scale 20 mA
- >105% full scale 20.8 mA
- Inhibition 3.4 mA
- Fault measure 2.6 mA
- Device fault (HW/SW) 2.0 mA
Output relays 2 x configurable relays max 1A / 30V AC/DC
ELECTRICAL
Power supply 24VDC, (18 – 28 V DC on versions DGi-TT7 or DG-TT7-S)
(18 – 30 V DC on versions DGi-RT7 or DG-RT7-S)
Consumption 2 W (typical), 3.5 W (output 20 mA and max brightness
display)
7.8 W Max (output 20 mA, max heating, max brightness)
(DGi-TT7-E/O only)
Wiring 0,5mm² (20AWG)-1,5mm² (16AWG).
* These frequencies of calibration control are provided for information purposes only. The frequency depends on
the operating conditions, the experience and safety requirements.