2
11-24 VDC
Less than 4 watts
Current mode input range 0-24 mA
35 mA maximum without damage
Voltage mode input range 0-12 VDC
Voltage mode input clamped at 13 VDC
150 psig
No less than 5 psig
above maximum output
11 SCFM @ 150 psig
supply at midscale output
2.0 SCFM @
15 psig output pressure
Instrument Air per ISA
S7.0.01 Recommended
Range 0 –160ºF
+(0.5%+0.06%/ºF)
of span
The Model T79xx Series includes Model T7900 and
Model T7950 Electro-Pneumatic I/P, E/P transduc-
ers Control Output Pressure in proportion to an
analog input signal.
When you apply initial power to the units,
dis-
plays on the Main Menu. If the keypad is inactive for
three minutes, the unit returns to
. If power is
disrupted, the unit returns to its last setting when
power is restored.
These devices use feed and bleed solenoid valve
control technology, digital feedback electronic con-
trol, and an internal electronic pressure sensor to
achieve high accuracy pressure control. Flexible
configuration and PID tuning capability ensure that
these pressure controllers can meet the most de-
manding air pressure control applications.
SPECIFICATIONS
Model T7900
Model T7950
Electrical
Supply voltage . . . . . . . . . . . . . . . . . . . . . . 11-24 VDC
Power consumption. . . . . . . . . . . . . Less than 4 watts
Analog input . . . . . Current mode input range 0-24 mA
35 mA maximum without damage
Voltage mode input range 0-12 VDC
Voltage mode input clamped at 13 VDC
Pneumatic
Maximum Supply pressure:
. . . . . . . . . . . . 200 psig
Minimum Supply Pressure. . . . . No less than 5 psig
above maximum output
Forward Flow Capacity
. . . . . . . . . . Up to 100
SCFM @ 170 psig
Exhaust Flow Capacity . . . . . . . . . . . . Up to 50 SCFM
Air Quality . . . . . . . . . . . . . . . . . . . . . . Instrument Air
per ISA S7.0.01 Recommended
Input signal / Impedance
: . . . 4-20 mA / 246 ohms,
0-10 VDC / 500k ohms
GENERAL INFORMATION
Electrical
Supply voltage . . . . . . . . . . . . . . . . . . . . . . .
Power consumption . . . . . . . . . . . . . . .
Analog input . . . . .
Pneumatic
Maximum Supply Pressure . . . . . . . . . . . . . . .
Minimum Supply Pressure . . . . . . .
Forward Flow Capacity . . . . . . . .
Exhaust Flow Capacity . . . . . . . . . . . . . .
Air Quality . . . . . . . . . . . . . . . . . .
Environmental - T7900 AND T7950
Operating Temperature . . . . . . . . . . . .
Temperature Effect . . . . . . . . . . . .
