TELEDYNE OLDHAM SIMTRONICS Everywhereyoulook DG-TT7-S, Operating Manual

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MULTITOX DETECTOR
OPERATING MANUAL
NOSP17668
Revision 03
a
9
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
1
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
« 4-20mA » format 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 1.5 mA
« 0-22mA » format 4-20mA with several fault levels, for PLC and some recent
control units

0% full scale4 mA

100% full scale20 mA

>105% full scale20.8 mA

Inhibition 3.4 mA

Fault measure2.6 mA

Device fault (HW/SW)2.0 mA
Output relays 3 x configurable relays max 1.7A / 30V
AC/DC (
optional)
2
1
These frequencies of calibration control are provided for information purposes only. The frequency depends on
the operating conditions, the experience and safety requirements.
2 This value changes to 1A when the security function uses the relays and the SIL level is required