Minco
Tel: 763. 571.3121 • Fax: 763. 571.0927 • www.minco.com • Doc. #1116290(D)
5
d. Sharp Edges - An accessible edge, projection, or corner of an enclosure, opening,
frame, guard, handle, or the like shall be smooth and well rounded, and shall not
cause a cut-type injury during normal use of the equipment.
REVISIONS
REV.
DESCRIPTION
DATE
ECO
APP.
A
ADDED NOTES 2-8, WAS INST 702(-), ADDED
“SIMPLE APPARATUS” NOTES
6/14/93
10344
MWG
C
Changed diagram on calibration, Modified
spacing
7/19/17
RAA
INST. 704(A)
Control Document, System Approvals for Intrinsically Safe Transmitters
The approved entity parameters specified are for Class I, Div.
1 Groups A, B, C, and D hazardous locations.
Models
Models
Models
TT210, TT211
TT176, TT216, TT676
TT710, TT711
TT190, TT230
TT220, TT221, TT720
Vmax = 35 volts
Vmax = 35 volts
Vmax = 35 volts
Imax = 150 Ma
Imax = 150 mA
Imax = 150 mA
Ci = 0
F
Ci = 0
F
Ci = 0
F
Li = 0 mH
Li = 0 mH
Li = 0 mH
1. The selected associated apparatus
and intrinsically safe apparatus must
meet the following conditions for
single channel operation:
Voc
Vmax
Isc
Imax
Ca
Ci
La
Li
2. The selected associated apparatus
and intrinsically safe apparatus must
meet the following conditions for dual
channel or multiple single channel
operation:
Vt
Vmax
It
Imax
Ca
Ci
La
Li
3. Voc, Vt, Isc, It, Ca and La are
parameters of the associated apparatus
where:
Voc,Vt = maximum open circuit
voltage
Isc,It = maximum short circuit
current
Ca = maximum allowable connected
capacitance
La = maximum allowable connected
inductance
